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User Manual MV1-D2080(IE) CameraLink®Series

1. A EEE A A E 6 4 Installation Notes 22 2 2 Comm 6 5 Graphical User Interface GUI o o KEK K KI K K K K K K KG 6 5 1 PortBrowser nn nn EE Eee S ta 6 5 3 Main Buttons 2 22 22 mon 6 6 DeviceProperties o e 7 Graphical User Interface GUI 7 1 MV1 D2080 160 a 1 1 Exposute FER EPER EE PE EE V 1 3 Irlgget FEE EEE an ea er 7 1 4 Data Output 7 1 5 LUT Look Up Table 7 1 6 Linbog 2 a 80 komm om elr her ni A di we ee rier QE d qe las aS 7 1 7 Convolver A A A A ee ae ke EOS Ee AO e e a oh oe dn dered oe a Jeo pies vd GR ys A A Som eke 8 heats aod MM 8 Mechanical and Optical Considerations 95 8 1 Mechanical Interface les 95 8 1 1 MV1 cameras with CameraLink Interfacel 2 222222220 95 8 2 Optical Interface 22s 97 8 2 1 CleaningtheSensor kk kK KK KEKE KEK ee 97 8 3 Compliance 222m nn 99 9 Warranty 101 9 1 Warranty Terms s sosai ate adegan y n ons 101 9 2 Warranty Claim llle horses 101 10 References 103 105 A 1 Power Supply Connector 2 2 2 22 mm 105 A 2 Cameralink Connector 2 2222 kK kK KEKE es 106 B Revision History 109 CONTENTS 5 CONTENTS Preface 1 1 About Photonfocus The Swiss company Photonfocus is one of the leading specialists in the development of CMOS image sensors an
2. Table 4 5 Summary of the ROI configuration restrictions for the MV1 D2080 IE camera series indicating the minimum ROI width w and the required number of pixel overlap ovl over the sensor middle line The settings of the region of interest in x direction are restricted to modulo 2 or 6 depending on the camera model amp There are no restrictions for the settings of the region of interest in y direction 4 3 3 Calculation of the maximum frame rate The frame rate mainly depends on the exposure time and readout time The frame rate is the inverse of the frame time fps tframe Calculation of the frame time sequential mode t rame gt texp tro Typical values of the readout time t are given in table Table 4 6 Calculation of the frame time simultaneous mode The calculation of the frame time in simultaneous read out mode requires more detailed data input and is skipped here for the purpose of clarity Cg A frame rate calculator for calculating the maximum frame rate is available in the support area of the Photonfocus website An overview of resulting frame rates in different exposure time settings is given in table Table 4 3 Reduction of Image Size 35 4 Functionality ROI Dimension MV1 D2080 IE 160 MV1 D2080 IE 240 2080 2076 x 2080 tro 28 5 ms tro TBD ms 2080 2076 x 1024 tro 14 1 ms tro TBD ms 2080 2076 x 512 tro 7 2 ms tro TBD ms 2080 2076 x 256 tro 3 7 ms tr
3. Figure 4 12 Response curve for different LinLog settings in LinLog1 mode 28 V1215 V1 16 vi 17 V1 18 V1 19 LinLog2 To get more grey resolution in the LinLog mode the LinLog2 procedure was developed In LinLog2 mode a switching between two different logarithmic compressions occurs during the exposure time see Fig 4 13 The exposure starts with strong compression with a high LinLog voltage Valuel At Timel the LinLog voltage is switched to a lower voltage resulting in a weaker compression This procedure gives a LinLog response curve with more grey resolution Fig 4 14 and Fig 4 15 show how the response curve is controlled by the three parameters Valuel Value2 and the LinLog time Timel Cg Settings in LinLog2 mode enable a fine tuning of the slope in the logarithmic region LinLog exp Value1 Value2 mn CENE 0 Time1 Time2 max t 1000 Figure 4 13 Voltage switching in the Linlog2 mode Typical LinLog2 Response Curve Varying Parameter Time1 Time2 1000 Value1 19 Value2 14 300 T T 840 7 T1 920 T1 960 250 200 T1 980 T1 999 150 100 Output grey level 8 bit DN 50 j Illumination Intensity Figure 4 14 Response curve for different LinLog settings in LinLog2 mode 4 2 Pixel Response 29 4 Functionality Typical LinLog2 Response Curve Varying Parameter Time1 Time2 1000 Value1 19 Value2 18 200 T T
4. MV1 D2080 IE 160 MV1 D2080 IE 240 Pixel Clock per Tap 80 MHz 80 MHz Number of Taps 2 3 Greyscale resolution 12 bit 10 bit 8 bit 8 bit Line pause 18 clock cycles TBD clock cycles CC1 EXSYNC EXSYNC cc2 not used not used CC3 not used not used CC4 not used not used Table 3 5 Summary of parameters needed for frame grabber configuration CameraLink port and bit assignments are compliant with the CameraLink standard see CL Table 3 6 shows the tap configurations for the MV1 D2080 IE 160 cameras For the MV1 D2080 IE 240 see application note ANO31 for further information 18 8 Bit 0 LSB AO 1 2 3 4 6 A4 A5 7 MSB of 8 Bit 8 9 MSB of 10 Bit 10 11 MSB of 12 Bit B3 B7 Table 3 6 CameraLink 2 Tap port and bit assignments for the MV1 D2080 IE 160 camera 3 4 Frame Grabber relevant Configuration 3 Product Specification 20 4 Functionality This chapter serves as an overview of the camera configuration modes and explains camera features The goal is to describe what can be done with the camera The setup of the MV1 D2080 IE series cameras is explained in later chapters 4 1 Image Acquisition 4 1 1 Readout Modes The MV1 D2080 IE CMOS cameras provide two different readout modes Sequential readout Frame time is the sum of exposure time and readout time Exposure time of the next image can only start if the readout ti
5. Pixel Clock CameraLink CameraLink CC Signals Serial Interface Figure 4 59 CameraLink serial interface for camera communication 4 13 Configuration Interface CameraLink9 71 4 Functionality 72 Hardware Interface 5 1 Connectors 5 1 1 CameraLink Connector The CameraLink cameras are interfaced to external components via e a CameraLink connector which is defined by the CameraLink standard as a 26 pin 0 5 Mini Delta Ribbon MDR connector to transmit configuration image data and trigger e asubminiature connector for the power supply 7 pin Binder series 712 The connectors are located on the back of the camera Fig 5 1 shows the plugs and the status LED which indicates camera operation Power Supply Connector yA CameraLink Connector Status LED Figure 5 1 Rear view of the CameraLink camera The CameraLink interface and connector are specified in CL For further details including the pinout please refer to Appendix A This connector is used to transmit configuration image data and trigger signals 5 1 2 Power Supply The camera requires a single voltage input see Table 3 4 The camera meets all performance specifications using standard switching power supplies although well regulated linear power supplies provide optimum performance It is extremely important that you apply the appropriate voltages to your camera Incorrect voltages will damage the cam
6. Workshop air supply is not appropriate and may cause permanent damage to the sensor 3 If further cleaning is required use a suitable lens wiper or Q Tip moistened with an appropriate cleaning fluid to wipe the sensor surface as described below Examples of suitable lens cleaning materials are given in Table 8 1 Cleaning materials must be ESD safe lint free and free from particles that may scratch the sensor surface Do not use ordinary cotton buds These do not fulfil the above requirements and permanent damage to the sensor may result 4 Wipe the sensor carefully and slowly First remove coarse particles and dirt from the sensor using Q Tips soaked in 2 propanol applying as little pressure as possible Using a method similar to that used for cleaning optical surfaces clean the sensor by starting at any corner of the sensor and working towards the opposite corner Finally repeat the procedure with methanol to remove streaks It is imperative that no pressure be applied to the surface of the sensor or to the black globe top material if present surrounding the optically active surface during the cleaning process 8 2 Optical Interface 99 8 Mechanical and Optical Considerations Iso Propanol Germany Table 8 1 Recommended materials for sensor cleaning Product Supplier Remark EAD400D Airduster Electrolube UK Anticon Gold 9 x 9 Wiper Milliken USA ESD safe and suitable for class 100 environments
7. 1 pixel 20 pixel 2 pixel 26 pixel 2 pixel Chemical Agent A B C 2079 2079 Figure 4 20 Multiple Regions of Interest in hyperspectral imaging 38 4 3 5 Decimation Decimation reduces the number of pixels in y direction Decimation can also be used together with ROI or MROI Decimation in y direction transfers every n row only and directly results in reduced read out time and higher frame rate respectively CE Decimation values are limited to odd values Fig 4 21 shows decimation on the full image The rows that will be read out are marked by red lines Row 0 is read out and then every nt row 0 0 M a 9 2079 2079 Figure 4 21 Decimation in full image Fig 4 22 shows decimation on a ROI The row specified by the Window Y setting is first read out and then every nt row until the end of the ROI Fig 4 23 shows decimation and MROI For every MROI region m the first row read out is the row specified by the MROI lt m gt Y setting and then every nt row until the end of MROI region m The image in Fig 4 24 on the right hand side shows the result of decimation 3 of the image on the left hand side An example of a high speed measurement of the elongation of an injection needle is given in Fig In this application the height information is less important than the width information Applying decimation 3 on the original image on the left hand side triples the resulting fram
8. 305 x10 DN J m amp 850 nm 8 bit gt 50 Optical fill factor Dynamic range gt 60 60 dB in linear mode 120 dB with LinLog Colour format Monochrome Characteristic curve Shutter mode Linear LinLog Global shutter Greyscale resolution 12 bit 10 bit 8 bit Table 3 2 General specification of the MV1 D2080 IE camera series Footnotes Indicated values are typical values Indicated values are subject to confirmation If operated above 1000 nm the image will be unsharp 3 3 Technical Specification 15 3 Product Specification MV1 D2080 IE 160 MV1 D2080 IE 240 Exposure Time 10 us 0 41 s 10 us 0 279 s Exposure time increment 25 ns 16 67 ns Frame rate Tint 10 jus 34 fps 51fps Pixel clock frequency 80MHz Pixel clock cycle 12 5 ns Camera taps 3 Read out mode sequential or simultaneous Table 3 3 Model specific parameters Footnote 3 Maximum frame rate Q full resolution MV1 D2080 IE 160 MV1 D2080 IE 240 Operating temperature 0 C 50 C Camera power supply 12 V DC 10 96 Trigger signal input range 5 15 V DC Max power consumption 5W TBDW Lens mount M42x1 F Mount C Mount 1 3 Dimensions 60 x 60 x 38 mm Mass 222g Conformity CE RoHS WEE Table 3 4 Physical characteristics and operating ranges Fig 3 2 shows the quantum efficiency and the responsivity of the A
9. by its starting value in y direction and its height The width and the horizontal offset are specified by X and W settings The maximum frame rate in MROI mode depends on the number of rows and columns being read out Overlapping ROIs are allowed Enable MROI Enable MROI If MROI is enabled the ROI and MROI settings cannot be changed Load File Load a user defined MROI file into the camera There is an exmaple file in the PFRemote directory Save File Save the current MROI settings to a txt file H tot Shows the sum of all MROIs as the total image height 84 7 1 3 Trigger This tab contains trigger and strobe settings MV1 D2080 160 cl0 2 Serial 1291 ERE Exposure Window Trigger Data Output LUT LinLog Convolver Correction Info Trigger Strobe Store as Defaults Mode Strobe Delay ms 0 0000 Settings File Free running O Interface Trigger 1 0 Trigger Strobe Pulse Width ms 1 0000 Exposure time defined by Exposure time defined by Strobe signal active low Trigger Pulse Width is also known as Level controlled trigger Frame Rate Fps Trigger Delay ms Burst Trigger Note For limitations of the Level controlled trigger Update please refer to the manual The Following combinations are not available Level controlled trigger and Interleave r 1 Level controlled trigger and LinLog Nr of Burst Triggers L Burst Trigger Delay ms B Level controlled trigg
10. example in the PFRemote directory mv1 d2080 160 lut txt Save File Save LUT from camera into a file 90 7 1 6 LinLog This tab contains LinLog and Skimming settings MV1 D2080 160 cl0 2 Serial 1291 en i LinLog i Convolver Correction Info Exposure Window Trigger Data Output LUT Store as Defaults as Defaults LinLog v Settings File LinLog mode Off Valuel Time1 Frame Rate fps Value2 Time2 Note For limitations of LinLog please refer to the manual Combination of LinLog and Interleave is not available Update 4 Compression Average Value Value1 Value2 Value3 Constant 0 Figure 7 7 MV1 D2080 160 linlog panel LinLog The LinLog technology from Photonfocus allows a logarithmic compression of high light intensities In contrast to the classical non integrating logarithmic pixel the LinLog pixel is an integrating pixel with global shutter and the possibility to control the transition between linear and logarithmic mode Section 4 2 2 There are 3 predefined LinLog settings available Alternatively custom settings can be defined in the User defined Mode LinLog Mode Off LinLog is disabled Low Normal High compression Three LinLog presettings User defined Valuel Timel Value2 and Time2 The Linlog times are per thousand of the exposure time Time 800 means 80 of the exposure time 7 1 MV1 D2080 160 91 7 Graphical User Interface GUI 7 1 7 Convo
11. www milliken com TX4025 Wiper Texwipe www texwipe com Transplex Swab Texwipe Small Q Tips SWABS Q tips Hans J Michael GmbH www hjm reinraum de BB 003 Germany Large Q Tips SWABS Q tips Hans J Michael GmbH CA 003 Germany Point Slim HUBY 340 Q tips Hans J Michael GmbH Germany Methanol Fluid Johnson Matthey GmbH Semiconductor Grade Germany 99 9 min Assay Merck 12 6024 UN1230 slightly flammable and poisonous www alfa chemcat com 2 Propanol Fluid Johnson Matthey GmbH Semiconductor Grade 99 5 min Assay Merck 12 5227 UN1219 slightly flammable www alfa chemcat com For cleaning the sensor Photonfocus recommends the products available from the suppliers as listed in Table 8 1 D 100 Cleaning tools except chemicals can be purchased directly from Photonfocus www photonfocus com 8 3 Compliance CE Compliance Statement We Photonfocus AG CH 8853 Lachen Switzerland declare under our sole responsibility that the following products MV D1024 28 CL 10 MV D1024 80 CL 8 MV D1024 160 CL 8 MV D752 28 CL 10 MV D752 80 CL 8 MV D752 160 CL 8 MV D640 33 CL 10 MV D640 66 CL 10 MV D640 48 U2 8 MV D640C 33 CL 10 MV D640C 66 CL 10 MV D640C 48 U2 8 MV D1024E 40 MV D752E 40 MV D750E 20 CameraLink and USB2 0 Models MV D1024E 80 MV D1024E 160 MV D1024E 3D01 160 MV2 D1280 640 CL 8 SM2 D1024 80 VisionCam PS DS1 D1024 40 CL DS1 D1024 40 U2 DS1 D1024 80 CL DS1 D1024 160 CL DS1
12. CAMERANAME DLL Specific camera DLL e g mv1_d1312_160 dll e COMDLL DLL Communication DLL This COMDLL is not necessarily CameraLink specific but may depend on a CameraLink API compatible DLL which should also be provided by your frame grabber manufacturer e CLALLSERIAL DLL Interface to CameraLink frame grabber which supports the clallserial dll e CLSER_USB DLL Interface to USB port More information about these DLLs is available in the SDK documentation SW002 6 5 Graphical User Interface GUI PFRemote consists of a main window Fig and a configuration dialog In the main window the camera port can be opened or closed and log messages are displayed at the bottom The configuration dialog appears as a sub window as soon as a camera port was opened successfully In the sub window of PFRemote the user can configure the camera properties The following sections describe the general structure of PFRemote 6 5 1 Port Browser On start PFRemote displays a list of available communication ports in the main window olx File Help E BitFlow Inc Coreco Imaging E National Instruments clser dil at PFRemote directory USB RS 232 Figure 6 2 PFRemote main window with PortBrowser and log messages To open a camera on a specific port double click on the port name e g USB Alternatively right click on the port name and choose Open amp Configure The port is then queried for a
13. D1312 160 CL MV1 D1312 1 40 CL MV1 D1312 1 80 CL MV1 D1312 1 160 CL MV1 D1312 1 240 CL EL1 D1312 160 CL MV1 D2080 IE 160 CL MV1 D2080 IE 240 CL Digipeater CLB26 are in compliance with the below mentioned standards according to the provisions of European Standards Directives EN 61 000 6 3 2001 EN 61 000 6 2 2001 EN 61 000 4 6 1996 EN 61 000 4 4 1996 EN 61 000 4 3 1996 EN 61 000 4 2 1995 EN 55 022 1994 Photonfocus AG April 2011 Figure 8 5 CE Compliance Statement 8 3 Compliance 101 8 Mechanical and Optical Considerations 102 Warranty The manufacturer alone reserves the right to recognize warranty claims 9 1 Warranty Terms The manufacturer warrants to distributor and end customer that for a period of two years from the date of the shipment from manufacturer or distributor to end customer the Warranty Period that e the product will substantially conform to the specifications set forth in the applicable documentation published by the manufacturer and accompanying said product and e the product shall be free from defects in materials and workmanship under normal use The distributor shall not make or pass on to any party any warranty or representation on behalf of the manufacturer other than or inconsistent with the above limited warranty set 9 2 Warranty Claim The above warranty does not apply to any product that has been modified or al A tered by any party o
14. Figure 4 45 Region LUT in keyhole inspection 4 8 Grey Level Transformation LUT 59 4 Functionality Figure 4 46 Region LUT example with camera image left original image right gain 4 region in the are of the date print of the bottle 60 4 9 Convolver 4 9 1 Functionality The Convolver is a discrete 2D convolution filter with a 3x3 convolution kernel The kernel coefficients can be user defined The M x N discrete 2D convolution pour X y of pixel pin x y with convolution kernel h scale s and offset o is defined in Fig 4 47 M 1N 1 1 eo M 1 N 1 up Y alm n pial x gt m y gt n P out m 0n 0 Figure 4 47 Convolution formula 4 9 2 Settings The following settings for the parameters are available Offset Offset value o see Fig 4 47 Range 4096 4095 Scale Scaling divisor s see Fig 4 47 Range 1 4095 Coefficients Coefficients of convolution kernel h see Fig 4 47 Range 4096 4095 Assignment to coefficient properties is shown in Fig Coeff Coeffl Coeff2 Coeff3 Coeff4 CoeffS Coeff Coeff7 Coeff amp Figure 4 48 Convolution coefficients assignment 4 9 3 Examples Fig 4 49 shows the result of the application of various standard convolver settings to the original image shows the corresponding settings for every filter A filter called Unsharp Mask is often used to enhance near infrared images Fig 4 51 shows examples with the
15. compatible Photonfocus camera In the PFRemote main window there are two menus with the following entries available File Menu Clear Log Clears the log file buffer Quit Exit the program Help Menu About Copyright notice and version information Help F1 Invoke the online help PFRemote documentation 78 6 5 2 Ports Device Initialization After starting PFRemote the main window as shown in Fig 6 2 will appear In the PortBrowser in the upper left corner you will see a list of supported ports amp gt Depending on the configuration your port names may differ and not every port may be functional SD If your frame grabber supports clallserial dll version 1 1 CameraLink compliant standard Oct 2001 the name of the manufacturer is shown in the PortBrowser If your frame grabber supports clallserial dll version 1 0 CameraLink compliant D standard Oct 2000 the PortBrowser shows either the name of the dll or the manufacturer name or displays Unknown If your frame grabber does not support clallserial dll copy the clserXXXX adll of D your frame grabber in the PFRemote directory and rename it to clser dll The PortBrowser will then indicate this DLL as clser dll at PFRemote directory After connecting the camera the device can be opened with a double click on the port name or by right clicking on the port name and choosing Open amp Configure If the initialisation of the camera was successful the configuration d
16. controlled exposure mode see Section 4 4 3 An external trigger pulse starts the exposure of one image In Burst Trigger Mode however a trigger pulse starts the exposure of a user defined number of images see Section 4 4 5 The start of the exposure is shortly after the active edge of the incoming trigger An additional trigger delay can be applied that delays the start of the exposure by a user defined time see Section 4 44 This often used to start the exposure after the trigger to a flash lighting source 4 4 2 Trigger Source The trigger signal can be configured to be active high or active low One of the following trigger sources can be used Free running The trigger is generated internally by the camera Exposure starts immediately after the camera is ready and the maximal possible frame rate is attained if Constant Frame Rate mode is disabled In Constant Frame Rate mode exposure starts after a user specified time Frame Time has elapsed from the previous exposure start and therefore the frame rate is set to a user defined value Interface Trigger In the interface trigger mode the trigger signal is applied to the camera by the CameraLink interface Fig shows a diagram of the interface trigger setup The trigger is generated by the frame grabber board and sent on the CC1 signal through the CameraLink interface Some frame grabbers allow the connection external trigger devices through an I O card A schematic diagram of this set
17. damage or destroy the camera Figure A 1 Power connector assembly Connector Type Order Nr 7 pole plastic 99 0421 00 07 7 pole metal 99 0421 10 07 Table A 1 Power supply connectors Binder subminiature series 712 107 A Pinouts Pin I O Type Name Description VDD 12 V DC 10 GND Ground RESERVED Do not connect STROBE VDD 5 15 VDC STROBE Strobe control opto isolated TRIGGER External trigger opto isolated 5 15V DC PWR GROUND Signal ground for opto isolated strobe signal 1 2 3 4 5 6 7 Table A 2 Power supply plug pin assignment A 2 CameraLink Connector The pinout for the CameraLink 26 pin 0 5 Mini D Ribbon MDR connector is according to the CameraLink standard CL and is listed here for reference only see Table The drawing of the CameraLink cable plug is shown in Fig Cg Cameralink cables can be purchased from Photonfocus directly www photonfocus com 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Figure A 3 CameraLink cable 3M MDR 26 plug both ends 108 PIN IO Name Description 1 PW SHIELD Shield 2 O N XDO Negative LVDS Output CameraLink Data DO 3 O N_XD1 Negative LVDS Output CameraLink Data D1 4 O N_XD2 Negative LVDS Output CameraLink Data D2 5 O N_XCLK Negative LVDS Output CameraLink Clo
18. factory defaults 6 6 Device Properties Cameras or sensor devices are generally addressed as device in this software These devices have properties that are accessed by a property name These property names are translated into register accesses on the driver DLL The property names are reflected in the GUI as far as practicable A property name normally has a special mark up throughout this document for example ExposureTime Some properties are grouped into a structure whose member is accessed via dot notation e g Window X for the start X value of a region of interest When changing a property the property name can always be seen in the log window of the main program window Graphical User Interface GUI 7 1 MV1 D2080 160 This section describes the parameters of the following camera e MV1 D2080 160 CL CameraLink interface The following sections are grouped according to the tabs in the configuration dialog Frame Rate fps Update Average Value 1356 Update Figure 7 1 MV1 D2080 160 frame rate and average value Frame Rate fps Shows the actual frame rate of the camera in frames per second Update To update the value of the frame rate click on this button Average Value Greyscale average of the actual image This value is in 12bit 0 4095 Update To update the value of the average click on this button 81 7 Graphical User Interface GUI 7 1 1 Exposure This tab contains exposure
19. is crucial for proper gain correction 52 Figure 4 36 Schematic presentation of the gain correction algorithm average of gray reference e picture gray reference picture Olej N offset correction matrix 1 zi v 09 1 100 11 2 1 2 0 8 1 0 9 1 1 gain correction matrix Gain correction always needs an offset correction matrix Thus the offset correc tion always has to be performed before the gain correction How to Obtain a Grey Reference Image In order to improve the image quality the grey reference image must meet certain demands FE 7 1 8 The grey reference image must be obtained at uniform illumination The detailed procedure to set the grey reference image is described in Section Use a high quality light source that delivers uniform illumination Standard illu mination will not be appropriate When looking at the histogram of the grey reference image ideally there are no grey levels at full scale 4095 DN 12 bit All pixels that are saturated white will not be properly corrected see Fig 4 37 Camera settings may influence the grey level Therefore the camera settings of the grey reference image must be identical with the camera settings of the image to be corrected 4 6 4 Corrected Image Offset gain and hot pixel correction can be switched on separately The following configurations are possible No
20. itself software trigger or by an external event hardware trigger CC2 CTRLO CC3 CTRLI CC4 CTRL2 Control2 This signal is reserved for future purposes and is not used Control0 This signal is reserved for future purposes and is not used Control1 This signal is reserved for future purposes and is not used Table 5 3 Summary of the Camera Control CC signals as used by Photonfocus Pixel clock The pixel clock is generated on the camera and is provided to the frame grabber for synchronisation 5 2 CameraLink Data Interface 75 5 Hardware Interface Serial communication A CameraLink camera can be controlled by the user via a RS232 compatible asynchronous serial interface This interface is contained within the CameraLink interface and is physically not directly accessible Refer to Section 4 13 for more information Image data FVAL LVAL DVAL Pixel Clock CameraLink CameraLink CC Signals gt Serial Interface Figure 5 3 CameraLink interface system The frame grabber needs to be configured with the proper tap and resolution settings otherwise the image will be distorted or not displayed with the correct aspect ratio Refer to Table 3 3Jand to Section 3 4 for a summary of frame grabber relevant specifications Fig shows symbolically a CameraLink system For more information about taps refer to the relevant application note ANO21 on the Phot
21. other with black lines Figure 4 52 Crosshairs Example with different grey values The x and y positon is absolute to the sensor pixel matrix It is independent on the ROI MROI or decimation configurations Figure Fig 4 53 shows two situations of the crosshairs configuration The same MROI settings is used in both situations The crosshairs however is set differently The crosshairs is not seen in the image on the right because the x and y position is set outside the MROI region 64 0 0 MROI 0 MROI 0 Xapsotutr Yabsou Grey Level Xapsoiutr Yabsoi Grey Level MROI 1 MROI 1 2079 2079 Figure 4 53 Crosshairs absolute position 4 10 Crosshairs 2079 2079 65 4 Functionality 4 11 Image Information and Status Line There are camera properties available that give information about the acquired images such as an image counter average image value and the number of missed trigger signals These properties can be queried by software Alternatively a status line within the image data can be switched on that contains all the available image information 4 11 1 Counters and Average Value Image counter The image counter provides a sequential number of every image that is output After camera startup the counter counts up from 0 counter width 24 bit The counter can be reset by the camera con
22. pixel per pixel basis i e every pixel is corrected separately For the correction a black reference and a grey reference image are required Then the correction values are determined automatically in the camera Do not set any reference images when gain or LUT is enabled Read the follow ing sections very carefully Correction values of both reference images can be saved into the internal flash memory but this overwrites the factory presets Then the reference images that are delivered by factory cannot be restored anymore 4 6 2 Offset Correction FPN Hot Pixels The offset correction is based on a black reference image which is taken at no illumination e g lens aperture completely closed The black reference image contains the fixed pattern noise of the sensor which can be subtracted from the live images in order to minimise the static noise Offset correction algorithm After configuring the camera with a black reference image the camera is ready to apply the offset correction Determine the average value of the black reference image Subtract the black reference image from the average value Mark pixels that have a grey level higher than 1008 DN 12 bit as hot pixels Store the result in the camera as the offset correction matrix IM LN LE Eu During image acquisition subtract the correction matrix from the acquired image and interpolate the hot pixels see Section 4 6 2 50 PE Do 1 1 average i BEE Ta
23. settings MV1 D2080 160 clO 2 Serial 1291 PR Exposure Window Trigger Data Output LUT LinLog Convolver Correction Info Reset Exposure Store as Defaults Exposure time ms I 10 000 Settings File ES Frame time ms Factory Reset Frame Rate fps Simultaneous readout Interleave Simultaneous readout Interleave Update Note The camera should be recalibrated when switching between normal readout mode and simultaneous readout mode ime lt in simul libr If exposure time 250us in simultaneous readout mode recalibrate the camera Average value Note For limitations of the simultaneous readout mode please refer to the manual The following combinations are not available Interleave and LinLog Interleave and LevelControlled trigger Update Figure 7 2 MV1 D2080 160 exposure panel Exposure Exposure time ms Configure the exposure time in milliseconds Constant Frame Rate When the Constant Frame Rate CFR is switched on the frame rate number of frames per second can be varied from almost 0 up to the maximum frame rate Thus fewer images can be acquired than would otherwise be possible When Constant Frame Rate is switched off the camera delivers images as fast as possible depending on the exposure time and the read out time Frame time ms Configure the frame time in milliseconds Only available if Constant Frame Rate is enabled The minimum fram
24. time gt readout time The frame rate is given by the exposure time Frames per second equal to the inverse of the exposure time The simultaneous readout mode allows higher frame rate However if the exposure time greatly exceeds the readout time then the effect on the frame rate is neglectable C In simultaneous readout mode image output faces minor limitations The overall linear sensor reponse is partially restricted in the lower grey scale region When changing readout mode from sequential to simultaneous readout mode E or vice versa new settings of the BlackLevelOffset and of the image correction are required Sequential readout By default the camera continuously delivers images as fast as possible Free running mode in the sequential readout mode Exposure time of the next image can only start if the readout time of the current image is finished exposure read out exposure read out Figure 4 2 Timing in free running sequential readout mode When the acquisition of an image needs to be synchronised to an external event an external trigger can be used refer to Section 4 4 In this mode the camera is idle until it gets a signal to capture an image exposure read out idle exposure external trigger Figure 4 3 Timing in triggered sequential readout mode Simultaneous readout interleave exposure To achieve highest possible frame rates the camera must be set to Free running mode w
25. 2080 CMOS sensor displayed as a function of wavelength For more information on photometric and radiometric measurements see the Photonfocus application notes AN006 and ANOOS available in the support area of our website www photonfocus com 16 60 Responsivity 1200 50 1000 40 800 30 600 Quantum Efficiency 20 Responsivity V J m2 400 o 10 1 200 0 200 300 400 500 600 700 800 900 1000 1100 Wavelength nm Figure 3 2 Spectral response of the A2080 CMOS image sensor standard in the MV1 2080 camera series Fig 3 3 shows the quantum efficiency and the responsivity of the A2080IE CMOS sensor displayed as a function of wavelength The enhancement in the NIR quantum efficiency could be used to realize applications in the 900 to 1064 nm region 3 3 Technical Specification 17 3 Product Specification 60 QE Responsivity 1200 50 1000 40 30 Quantum Efficiency o 8 Responsivity V J m2 20 10 200 300 400 500 600 700 800 900 1000 1100 Wavelength nm Figure 3 3 Spectral response of the A2080IE image sensor NIR enhanced in the MV1 D2080IE camera series 3 4 Frame Grabber relevant Configuration The parameters and settings which are essential to configure the frame grabber are shown in the following table The timing diagrams of the camera are given in Section 4 1 2
26. 3 Frame rates of different ROI settings exposure time 10 us correction on and sequential readout mode 4 3 Reduction of Image Size 33 4 Functionality ROI Dimension Standard MV1 D2080 IE 240 2076 x 2080 full resolution TBD 2076 x 1024 TBD 1026 x 2080 TBD 1920 x 1080 Full HD TBD 1284 x 1024 SXGA TBD 1284 x 768 WXGA TBD 1284 x 720 HD ready TBD 804 x 600 SVGA TBD 642 x 480 VGA TBD 2076 x 900 TBD 2076 x 800 TBD 2076 x 700 TBD 2076 x 600 TBD 2076 x 512 TBD 2076 x 500 TBD 2076 x 256 TBD 2076 x 200 TBD 2076 x 128 TBD 2076 x 100 TBD 2076 x 32 TBD 2076 x 16 TBD 2076 x 3 TBD 2076 x 2 TBD 2076 x 1 TBD Table 4 4 Frame rates of different ROI settings exposure time 10 us correction on and sequential readout mode 34 4 3 2 ROI configuration In the MV1 D2080 IE camera series the following two restrictions have to be respected for the ROI configuration The width w of the ROI is camera model dependent and can be set almost freely The witdh for the camera model MV1 D2080 IE 160 must be modulo 2 for the MV 1 D2080 IE 240 it must be be modulo 6 e Setting the ROI in x direction will never increase the readout performance fps e Setting the ROI in y direction will increase the readout performance fps MV 1 D2080 IE 160 MV1 D2080 IE 240 ROI width w 2 2080 6 2076 width condition modulo 2 modulo 6
27. 91 FERRER LinLog Convolver Correction Info Reset Exposure Window Trigger Data Output LUT Output Mode Store as Defaults Output Mode Normal v Settings File a Bit vj Resolution Digital Gain 1x v Factory Reset Digitaloffset 12bit o Frame Rate fps Fine Gain J Average Value Figure 7 5 MV1 D2080 160 data output panel Output Mode Output Mode Normal Normal mode LFSR Test image Linear feedback shift register pseudo random image The pattern depends on the grey level resolution Ramp Test image Values of pixel are incremented by 1 starting at each row The pattern depends on the grey level resolution Resolution 8 Bit Grey level resolution of 8 bit 10 Bit Grey level resolution of 10 bit 12 Bit Grey level resolution of 12 bit Digital Gain 1x No digital gain normal mode 2x Digital gain 2 4x Digital gain 4 7 1 MV1 D2080 160 87 7 Graphical User Interface GUI 8x Digital gain 8 Digital Offset Substracts an offset from the data Only available in gain mode Fine gain The fine gain can be used to adjust the brightness of the whole image in small steps 88 7 1 5 LUT Look Up Table This tab contains LUT settings MV1 D2080 160 e cl0 2 Serial 1291 X J p Exposure Window Trigger Data Output LUT LinLog Convolver Correction Info Reset Look Up Table Store as Defaults LUT mapping 12 to 8 Bit This camera
28. Field 3 Field 4 Figure 4 54 Status line parameters replace the last row of the image 66 Table 4 12 Assignment of status line fields Camera Model Start pixel index Parameter width bit Parameter Description 0 32 Preamble 0x55AAOOFF 4 24 Image Counter see Section 4 11 1 8 32 Real Time Counter see Section 12 8 Missed Trigger Counter see Section 411 1 16 12 Image Average Value raw data without taking gain settings in account see Section 411 20 24 Integration Time in units of clock cycles see Table 3 3 24 16 Burst Trigger Number not yet supported fixed to 0 28 8 Missed Burst Trigger Counter 32 11 Horizontal start position of ROI Window X 36 11 Horizontal end position of ROI Window X Window W 1 40 11 Vertical start position of ROI Window Y In MROI mode this parameter is 0 44 11 Vertical end position of ROI Window Y Window H 1 In MROI mode this parameter is the total height 1 48 2 Trigger Source 52 2 Digital Gain 56 2 Digital Offset 60 16 Camera Type Code see 4 13 64 32 Camera Serial Number Camera Type Code MV 1 D2080 160 CL 12 BL1 D2080 160 CL 12 302 MV 1 D2080 240 CL 8 BL1 D2080 240 CL 8 TBD MV 1 D2080IE 160 CL 12 BL1 D2080IE 160 CL 12 TBD MV1 D2080IE 240 CL 8 BL1 D2080IE 240 CL 8 TBD Table 4 13 Type codes of MV1 D2080 and BL1 D2080 cameras series 4 11 Image Information and Status Line 67 4 Fun
29. Software Trigger 4 4 7 Strobe Output 46 Image Correction 2lll reel ru V uen ee Re ee a ee ae ae eee ep NE NN 4 6 2 Offset Correction FPN Hot Pixels 22 2 222mm nn CONTENTS CONTENTS 4 6 3 Gain Correction aaao 4 6 4 Corrected Image 4 7 Digital Gain and Offset 4 8 Grey Level Transformation LUT 4 8 3 User defined Look up Table 4 9 Convolver 9 1 Functionality 9 2 Settings 9 3 Examples 4 10 Crosshairs 4 10 1 Functionality 4 11 Image Information and Status Line 4 11 1 Counters and Average Value Waa ea OX RC AACE Ox ead ee we a eee we we 4 12 Test Images amp 3 4 a ee a ao den ee ee ee ae na PAT cee este et ce oe cee we St TD J jIkN JJI J NH A2 12 2 EESRI ee Bete cee at oe Peete qun ee a ey ee Ride ee d ie HH 4 12 3 Troubleshooting using the LFSR KK KK K K K K K KI K K K K K K K 4 13 Configuration Interface Cameralink KIRI K K K K 5 1 CONNECTION ss a a EET v lA Ad oe SEE SA a ok 5 1 1 Cameralink Connector 5 1 2 Power Supply 5 1 3 Trigger and Strobe Signals 5 1 4 Status Indicator CameraLink cameras 5 2 CameraLink Data Interface A A A 6 The PFRemote Control Tool EE NE a o e a eee 6 2 PFRemote and PFLib o ee
30. T T 180 160 z A 140 4 5 120 S 100L 717880 J T1 900 T1 920 S 80r T1 940 7 5 T1 960 a 60 T1 980 4 5 T1 1000 O 40 E A SEEGER A E EA ES AE KE NSG DESS AAA AT ae oh Gok EA E EE R R Br Bos wee 20 a TT EEEE EEE E RR RR RO A RN RR RN 0 ji ji Illumination Intensity Figure 4 15 Response curve for different LinLog settings in LinLog2 mode LinLog3 To enable more flexibility the LinLog3 mode with 4 parameters was introduced Fig 4 16 shows the timing diagram for the LinLog3 mode and the control parameters Vi LinLog Value1 Value2 Value3 Constant 0 Time1 Time2 tap Figure 4 16 Voltage switching in the LinLog3 mode 30 Typical LinLog2 Response Curve Varying Parameter Time2 Time1 850 Value1 19 Value2 18 300 T T T T T 250r T2 950 T2 960 T2 970 T2 980 3 200 I T2 990 D 3 150 a gt u D 5 100 x em 5 O 50 0 ji i Illumination Intensity Figure 4 17 Response curve for different LinLog settings in LinLog3 mode 4 2 Pixel Response 31 4 Functionality 4 3 Reduction of Image Size With Photonfocus cameras there are several possibilities to focus on the interesting parts of an image thus reducing the data rate and increasing the frame rate The most commonly used feature is Region of Interest ROI 4 3 1 Region of Interest ROI Some applications do not need full image re
31. able independent of gain gamma or user definded mode is always 8 bit Cg There are 2 predefined functions which generate a look up table and transfer it to the camera For other transfer functions the user can define his own LUT file Some commonly used transfer curves are shown in Fig Line a denotes a negative or inverse transformation line b enhances the image contrast between grey values x0 and x1 Line c shows brightness thresholding and the result is an image with only black and white grey levels and line d applies a gamma correction see also Section 14 8 2 4 8 1 Gain The Gain mode performs a digital linear amplification with clamping see Fig 4 40 It is configurable in the range from 1 0 to 4 0 e g 1 234 4 7 Digital Gain and Offset 55 4 Functionality Figure 4 39 Commonly used LUT transfer curves Grey level transformation Gain y 255 1023 a x 300 T T T T 250r 200r 150 100 9 m m m nn B wu sooo y grey level output value 8 bit DN 50 1 0 200 400 600 800 1000 1200 x grey level input value 10 bit DN Figure 4 40 Applying a linear gain with clamping to an image 56 4 8 2 Gamma The Gamma mode performs an exponential amplification configurable in the range from 0 4 to 4 0 Gamma gt 1 0 results in an attenuation of the image see Fig 4 41 gamma lt 1 0 results in an amplification see Fig 4 22 Gamma corr
32. age 4 12 3 Troubleshooting using the LFSR To control the quality of your complete imaging system enable the LFSR mode set the camera window to 1024 x 1024 pixels x 0 and y 0 and check the histogram If your frame grabber application does not provide a real time histogram store the image and use a graphic software tool to display the histogram In the LFSR linear feedback shift register mode the camera generates a constant pseudo random test pattern containing all grey levels If the data transmission is error free the histogram of the received LFSR test pattern will be flat Fig 4 57 On the other hand a non flat histogram Fig indicates problems that may be caused either by the cable by the connectors or by the frame grabber 68 Figure 4 56 LFSR linear feedback shift register test image A possible origin of failure message can be caused by the CameraLink cable amp which exceeds the maximum length Also CameraLink cables may suffer either from stress due to wrong installation or from severe electromagnetic interfer ence 4 12 Test Images 69 4 Functionality Some thinner CameraLink cables have a predefined direction In these cables SD not all twisted pairs are separately shielded to meet the RS644 standard These pairs are used for the transmission of the RX TX and for the CC1 to CC4 low frequency control signals M Histogramm Port A Picture 620 Port A Picture 620 127 255 Figure 4 57 LFSR test
33. amples are shown in Fig 4 44 and Fig 4 45 Fig 4 44 shows an example of overlapping Region LUTs LUT 0 LUT 1 and Region LUT are enabled LUT 0 is active in region 0 x00 x01 y00 y01 and it supersedes LUT 1 in the overlapping region LUT 1 is active in region 1 x10 x11 y10 y11 Fig 4 45 shows an example of keyhole inspection in a laser welding application LUT 0 and LUT 1 are used to enhance the contrast by applying optimized transfer curves to the individual regions LUT 0 is used for keyhole inspection LUT 1 is optimized for seam finding Fig 4 46 shows the application of the Region LUT to a camera image The original image without image processing is shown on the left hand side The result of the application of the Region LUT is shown on the right hand side One Region LUT was applied on a small region on the lower part of the image where the brightness has been increased Enable LUT 0 Enable LUT 1 Enable Region LUT Description LUT are disabled X don t care LUT 0 is active on whole image X LUT 1 is active on whole image X X LUT 0 active in Region 0 X X X LUT 0 active in Region 0 and LUT 1 active in Region 1 LUT 0 supersedes LUT1 Table 4 11 LUT Enable and Region LUT 58 0 0 x00 x10 x01 x11 y01 y11 2079 2079 Figure 4 44 Overlapping Region LUT example le 2079 2079 2079 2079
34. available in simultaneous readout mode External Trigger with Camera controlled Exposure Time In the external trigger mode with camera controlled exposure time the rising edge of the trigger pulse starts the camera states machine which controls the sensor and optional an 4 4 Trigger and Strobe 43 4 Functionality Machine Vision Flash System PC Camera 1 CameraLink Frame Grabber Data CameraLink Trigger Source Figure 4 28 I O trigger source external strobe output Fig shows the detailed timing diagram for the external trigger mode with camera controlled exposure time LL external trigger pulse input trigger after isolator t d iso input trigger pulse internal camera control le Liitter l delayed trigger for shutter control t trigger delay internal shutter control trigger offset t exposure delayed trigger for strobe control er strobe delay internal strobe control li atobesoffset le tstrobe duration AOS external strobe pulse output gt A Figure 4 29 Timing diagram for the camera controlled exposure time The rising edge of the trigger signal is detected in the camera control electronic which is implemented in an FPGA Before the trigger signal reaches the FPGA it is isolated from the camera environment to allow robust integration of the camera into the vision system In the signal isolator the trigger signal is delaye
35. ble 3 for the allowed exposure time range 4 1 4 Maximum Frame Rate The maximum frame rate depends on the exposure time and the size of the image see Section 4 3 26 4 2 Pixel Response 4 2 1 Linear Response The camera offers a linear response between input light signal and output grey level This can be modified by the use of LinLog as described in the following sections In addition a linear digital gain may be applied as follows Please see Table 3 2 for more model dependent information Black Level Adjustment The black level is the average image value at no light intensity It can be adjusted by the software by changing the black level offset Thus the overall image gets brighter or darker Use a histogram to control the settings of the black level 4 2 2 LinLog Overview The LinLog technology from Photonfocus allows a logarithmic compression of high light intensities inside the pixel In contrast to the classical non integrating logarithmic pixel the LinLog pixel is an integrating pixel with global shutter and the possibility to control the transition between linear and logarithmic mode In situations involving high intrascene contrast a compression of the upper grey level region can be achieved with the LinLog technology At low intensities each pixel shows a linear response At high intensities the response changes to logarithmic compression see Fig 4 10 The transition region between linear and logarith
36. cations which means that the digital image data are multiplied in the camera module by a factor 1 2 4 or 8 respectively It is implemented as a binary shift of the image data which means that there will be missing codes in the output image as the LSB s of the gray values are set to 0 E g for gain x2 the output value is shifted by 1 and bit 0 is set to 0 A user defined value can be subtracted from the gray value in the digital offset block This feature is not available in Gain x1 mode If digital gain is applied and if the brightness of the image is too big then the output image might be saturated By subtracting an offset from the input of the gain block it is possible to avoid the saturation 4 8 Grey Level Transformation LUT Grey level transformation is remapping of the grey level values of an input image to new values The look up table LUT is used to convert the greyscale value of each pixel in an image into another grey value It is typically used to implement a transfer curve for contrast expansion The camera performs a 12 to 8 bit mapping so that 4096 input grey levels can be mapped to 256 output grey levels The use of the three available modes is explained in the next sections Two LUT and a Region LUT feature are available in the MV1 D2080 camera series see Section 4 8 4 CS For MV1 D2080 240 camera series bits 0 amp 1 of the LUT input are fixed to 0 e The output grey level resolution of the look up t
37. ck 6 O N_XD3 Negative LVDS Output CameraLink Data D3 7 P_SERTOCAM Positive LVDS Input Serial Communication to the camera 8 O N_SERTOFG Negative LVDS Output Serial Communication from the camera 9 N_CC1 Negative LVDS Input Camera Control 1 CC1 10 N_CC2 Positive LVDS Input Camera Control 2 CC2 11 N_CC3 Negative LVDS Input Camera Control 3 CC3 12 P_CC4 Positive LVDS Input Camera Control 4 CC4 13 PW SHIELD Shield 14 PW SHIELD Shield 15 O P_XDO Positive LVDS Output CameraLink Data DO 16 O P_XD1 Positive LVDS Output CameraLink Data D1 17 O P_XD2 Positive LVDS Output CameraLink Data D2 18 O P_XCLK Positive LVDS Output CameraLink Clock 19 O P_XD3 Positive LVDS Output CameraLink Data D3 20 N SERTOCAM Negative LVDS Input Serial Communication to the camera 21 O P_SERTOFG Positive LVDS Output Serial Communication from the camera 22 P_CC1 Positive LVDS Input Camera Control 1 CC1 23 N_CC2 Negative LVDS Input Camera Control 2 CC2 24 P_CC3 Positive LVDS Input Camera Control 3 CC3 25 N CC4 Negative LVDS Input Camera Control 4 CC4 26 PW SHIELD Shield S PW SHIELD Shield Table A 3 Pinout of the CameraLink connector A 2 CameraLink9 Connector 109 A Pinouts 110 Revision History Revision Date Changes
38. correction Offset correction only Offset and hot pixel correction Hot pixel correction only Offset and gain correction Offset gain and hot pixel correction 4 6 Image Correction 53 4 Functionality Histogram of the uncorrected grey reference image a T T T T T T T TN T P gt al grey reference image ok VI 2 0 8 grey reference image too bright i u 4 5 0 6 4 o E 5 0 4 E o 2 3 02 5 o ra 0 la 2400 2600 2800 3000 3200 3400 3600 3800 4000 4200 Grey level 12 Bit DN Figure 4 37 Proper grey reference image for gain correction in i Pee rj ys B 1 2 I 0 0 09 11110 gg E 212 1 1 11 211 2 08 1 I IBS 0021 os ila Q ED Feie a current image offset correction gain correction corrected image matrix matrix Figure 4 38 Schematic presentation of the corrected image using gain correction algorithm In addition the black reference image and grey reference image that are currently stored in the camera RAM can be output Table 4 10 shows the minimum and maximum values of the correction matrices i e the range that the offset and gain algorithm can correct Minimum Maximum Offset correction 1023 DN 12 bit 1023 DN 12 bit Gain correction 0 42 2 67 Table 4 10 Offset and gain correction ranges 54 4 7 Digital Gain and Offset Gain x1 x2 x4 and x8 are digital amplifi
39. corresponding settings 4 9 Convolver 61 4 Functionality Laplace 1 Figure 4 49 3x3 Convolution filter examples 1 Sobel H Offset 0 Scale 1 Laplace 1 Offset 0 Scale 1 Blur Offset 0 Scale 9 Sobel V Offset 0 Scale 1 1 0 1 2 0 2 1 0 1 Laplace 2 Offset 128 Scale 1 1 1 1 8 1 1 Gaussian Blur Offset 0 Scale 16 Sobel Diagonal 1 Offset 0 Scale 1 2 1 1 0 Sh 122 Prewitt H Offset 0 Scale 1 Figure 4 50 3x3 Convolution filter examples 1 settings 62 EI Prewitt H Prewitt V Sharpen Offset 0 Scale 1 1 Sobel Diagonal 2 Offset 0 Scale 1 Prewitt V Offset 0 Scale 1 10 1 1 0 1 10 I Original image Unsharp mask Unsharp mask with Gaussian Offset 0 Offset 0 Scale 1 Scale 6 1 1 1 1 4 1 1 9 1 4 26 4 1 1 1 4 1 Figure 4 51 Unsharp Mask Examples 4 9 Convolver 63 4 Functionality 4 10 Crosshairs 4 10 1 Functionality The crosshairs inserts a vertical and horizontal line into the image The width of these lines is one pixel The grey level is defined by a 12 bit value 0 means black 4095 means white This allows to set any grey level to get the maximum contrast depending on the acquired image The x y position and the grey level can be set via the camera software Figure Fig 4 52 shows two examples of the activated crosshairs with different grey values One with white lines and the
40. ction 4 6 Image Correction 51 4 Functionality Hot pixel correction Every pixel that exceeds a certain threshold in the black reference image is marked as a hot pixel If the hot pixel correction is switched on the camera replaces the value of a hot pixel by an average of its neighbour pixels see Fig 4 35 YY at hot Past pixel Bl Pr 62 D Ph Pr Figure 4 35 Hot pixel interpolation 4 6 3 Gain Correction The gain correction is based on a grey reference image which is taken at uniform illumination to give an image with a mid grey level Gain correction is not a trivial feature The quality of the grey reference image is crucial for proper gain correction Gain correction algorithm After configuring the camera with a black and grey reference image the camera is ready to apply the gain correction Determine the average value of the grey reference image Subtract the offset correction matrix from the grey reference image Divide the average value by the offset corrected grey reference image Pixels that have a grey level higher than a certain threshold are marked as hot pixels Store the result in the camera as the gain correction matrix E L E NR During image acquisition multiply the gain correction matrix from the offset corrected acquired image and interpolate the hot pixels see Section 4 6 2 Gain correction is not a trivial feature The quality of the grey reference image
41. ctionality 4 12 Test Images Test images are generated in the camera FPGA independent of the image sensor They can be used to check the transmission path from the camera to the frame grabber Independent from the configured grey level resolution every possible grey level appears the same number of times in a test image Therefore the histogram of the received image must be flat SD A test image is a useful tool to find data transmission errors that are caused most often by a defective cable between camera and frame grabber SD The analysis of the test images with a histogram tool gives the correct result at a resolution of TBD x TBD pixels only 4 12 1 Ramp Depending on the configured grey level resolution the ramp test image outputs a constant pattern with increasing grey level from the left to the right side see Fig Figure 4 55 Ramp test images 8 bit output left 10 bit output middle 12 right 4 12 2 LFSR The LFSR linear feedback shift register test image outputs a constant pattern with a pseudo random grey level sequence containing every possible grey level that is repeated for every row The LFSR test pattern was chosen because it leads to a very high data toggling rate which stresses the interface electronic and the cable connection In the histogram you can see that the number of pixels of all grey values are the same Please refer to application note ANO26 for the calculation and the values of the LFSR test im
42. d by time ta_iso input This signal is clocked into the FPGA which leads to a jitter of titter The pulse can be delayed by the time tirigeer delay Which can be configured by a user defined value via camera software The trigger offset delay ttrigger offset results then from the synchronous design of the FPGA state machines The exposure time texposure IS controlled with an internal exposure time controller 44 The trigger pulse from the internal camera control starts also the strobe control state machines The strobe can be delayed by tstrobe delay With an internal counter which can be controlled by the customer via software settings The strobe offset delay tstrobe delay results then from the synchronous design of the FPGA state machines A second counter determines the strobe duration tstrobe duration Strobe duration For a robust system design the strobe output is also isolated from the camera electronic which leads to an additional delay of ta_iso output Table 4 8 and Table 4 9 gives an overview over the minimum and maximum values of the parameters External Trigger with Pulsewidth controlled Exposure Time In the external trigger mode with Pulsewidth controlled exposure time the rising edge of the trigger pulse starts the camera states machine which controls the sensor The falling edge of the trigger pulse stops the image acquisition Additionally the optional external strobe output is controlled by the rising edge of the trigge
43. d columns being read out Overlapping ROIs are allowed See Section 4 3 3 for information on the calculation of the maximum frame rate Fig 4 18 compares ROI and MROI the setups visualized on the image sensor area are displayed in the upper half of the drawing The lower half shows the dimensions of the resulting image On the left hand side an example of ROI is shown and on the right hand side an example of MROI It can be readily seen that resulting image with MROI is smaller than the resulting image with ROI only and the former will result in an increase in image frame rate Fig shows another MROI drawing illustrating the effect of MROI on the image content Fig shows an example from hyperspectral imaging where the presence of spectral lines at known regions need to be inspected By using MROI only a 656x54 region need to be readout and a frame rate of 1053 fps can be achieved Without using MROI the resulting frame rate would be 34 fps for a 656x2080 ROI 36 CS MROI y start values are restricted to even values 0 0 0 0 MROI 0 MROI 1 MROI 2 2079 2079 2079 2079 MROI 0 MROI 1 MROI 2 Figure 4 18 Multiple Regions of Interest 4 3 Reduction of Image Size 4 Functionality pag NN i KVITT e Ig Figure 4 19 Multiple Regions of Interest with 5 ROIs 0 0 gt 656 pixel 1 pixel 2 pixel
44. d corresponding industrial cameras for machine vision security amp surveillance and automotive markets Photonfocus is dedicated to making the latest generation of CMOS technology commercially available Active Pixel Sensor APS and global shutter technologies enable high speed and high dynamic range 120 dB applications while avoiding disadvantages like image lag blooming and smear Photonfocus has proven that the image quality of modern CMOS sensors is now appropriate for demanding applications Photonfocus product range is complemented by custom design solutions in the area of camera electronics and CMOS image sensors Photonfocus is ISO 9001 certified All products are produced with the latest techniques in order to ensure the highest degree of quality 1 2 Contact Photonfocus AG Bahnhofplatz 10 CH 8853 Lachen SZ Switzerland Sales Phone 41 55 451 07 45 Email sales photonfocus com Phone 41 55 451 01 37 Email support photonfocus com Table 1 1 Photonfocus Contact 1 3 Sales Offices Photonfocus products are available through an extensive international distribution network and through our key account managers Details of the distributor nearest you and contacts to our key account managers can be found at www photonfocus com 1 4 Further information Photonfocus reserves the right to make changes to its products and documenta C tion without notice Photonfocus products are neither intended nor certifi
45. e MV1 D2080 160 e cl0 2 Serial 1291 E quA Exposure Window Trigger Data Output LUT LinLog Convolver Correction Info Camera Info Temperature Store as Defaults Camera name Imager PCB deg C Eus Typecode Imager deg C Serial ADC PCB deg C FPGA Revision Update uc Revision Interface Baudrate Factory Reset Frame Rate Fps Average Value Counters Image 284 Update update Missed Trigger o update Missed Burst Trigger 0 Update Status Line The status line replaces the last row of the image with camera status information Every parameter is coded into fields of 4 pixels Enable Status Line Figure 7 10 MV1 D2080 160 info panel Camera Info Camera name Name of the connected camera Typecode Type code of the connected camera Serial Serial number of the connected camera FPGA Sensor Revision Firmware revision of built in Sensor FPGA of the connected camera uC Revision Firmware revision of built in microcontroller of the connected camera Interface Description of the camera interface Baudrate The actual baud rate between camera and frame grabber EE For any support requests please enclose the information provided on this tab 7 1 MV1 D2080 160 95 7 Graphical User Interface GUI Counter The camera has the following counters Image The image counter is a 24 bit real time counter and is incremented by 1 for every new image Missed Trigge
46. e time defined by Trigger Pulse Width is also known as Level controlled trigger Further trigger settings 7 1 MV1 D2080 160 85 7 Graphical User Interface GUI Trigger Delay Programmable delay in milliseconds between the incoming trigger edge and the start of the exposure Trigger signal active low Define the trigger signal to be active high default or active low Burst Trigger An external trigger event start a predefined number of acquisition The period time between the acquisitions can be configured Enable Burst Trigger Delay in milliseconds from the input trigger edge to the rising edge of the strobe output signal Number of Burst Triggers Set the number of burst Burst Trigger Period ms Set the time between the burst in milliseconds Burst Trigger Delay ms Set the delay of the burst trigger in milliseconds Strobe The camera generates a strobe output signal that can be used to trigger a strobe The delay pulse width and polarity can be defined by software To turn off strobe output set StrobePulseWidth to 0 Strobe Delay ms Delay in milliseconds from the input trigger edge to the rising edge of the strobe output signal Strobe Pulse Width ms The pulse width of the strobe trigger in milliseconds Strobe signal active low Define the strobe output to be active high default or active low 86 7 1 4 Data Output This tab contains image data settings MV1 D2080 160 e cl0 2 Serial 12
47. e time depends on the exposure time and readout time Simultaneous readout Interleave The simultaneous readout mode allows higher frame rate Simultaneous readout Interleave Enable the simultaneous readout mode Combination of property Trigger Interleave and property LinLog Mode is not E available Combination of property Trigger Interleave and property Trig ger LevelControlled is not available 82 7 1 2 Window This tab contains the settings for the region of interest MV1 D2080 160 cl0 2 Serial 1291 rara Exposure Window Trigger Data Output LUT LinLog Convolver Correction Info rest Region of interest Multi ROI Store as Defaults w 2080 Note When MROI is enabled Enable MROT MROI settings can not be changed Settings File ar eme j gt E v v A l Load MROI from File Load File Set to max ROI Save MROL to File When using ROI in x direction enable Datavalid DVAL feature Frame Rate fps on the frame grabber MROTH total Decimation Note Htot shows the total height For the MROI mode only Update Settings for frame grabber Decimation Y 1 ROI settings on the camera interface Use Average Value these settings to configure the frame grabber Crosshairs Enable Crosshairs wet i Update 1040 1040 gt ts pa Htot Value 12bit Figure 7 3 MV1 D2080 160 window panel Region of Interest The regio
48. e to about TBD fps 4 3 Reduction of Image Size 39 4 Functionality 0 0 2079 2079 Figure 4 22 Decimation and ROI 0 0 ROI MROI 0 2079 2079 Figure 4 23 Decimation and MROI 40 Figure 4 24 Image example of decimation 3 Figure 4 25 Example of decimation 2 on image of injection needle 4 3 Reduction of Image Size 41 4 Functionality 4 4 Trigger and Strobe 4 4 1 Introduction The start of the exposure of the camera s image sensor is controlled by the trigger The trigger can either be generated internally by the camera free running trigger mode or by an external device external trigger mode This section refers to the external trigger mode if not otherwise specified In external trigger mode the trigger can be applied through the CameraLink interface interface trigger or directly by the power supply connector of the camera I O Trigger see Section 4 4 2 The trigger signal can be configured to be active high or active low When the frequency of the incoming triggers is higher than the maximal frame rate of the current camera settings then some trigger pulses will be missed A missed trigger counter counts these events This counter can be read out by the user The exposure time in external trigger mode can be defined by the setting of the exposure time register camera controlled exposure mode or by the width of the incoming trigger pulse trigger
49. eck the correct supply voltage and polarity Do not exceed the maximum operating voltage of 12V DC 10 7 Connect the power supply to the camera see Fig 2 2 Q The status LED on the rear of the camera will light red for a short moment and then flash green For more information see Section 5 1 4 10 8 Download the camera software PFRemote to your computer You can find the latest version of PFRemote on the support page at www photonfocus com 9 Install the camera software PFRemote Please follow the instructions of the PFRemote setup wizard l Setup PFRemote and SDK yy io xi Welcome to the PFRemote and SDK Setup Wizard This will install PFRemote on your computer It is recommended that you close all other applications before continuing Click Next to continue or Cancel to exit Setup Figure 2 3 Screen shot PFremote setup wizard 10 Start the camera software PFRemote and choose the communication port ETE A File Help E Potts Exposure Window Trigger Data Output Characteristics amp BitFlow Inc r Exposure E Coreco Imaging E National Instruments Exposure time ms J 10 000 E clser dll at PFRemote directory MV D1024E 160 ci 5 Constant Frame Rate USB E RS 232 Frame time ms J 16657 Information 16 25 26 Opening device on port clO 4 Image Counter 985682 Update 16 25 26 Device opened on port cl0 4 E Update i M
50. ection is often used for tone mapping and better display of results on monitor screens Grey level transformation Gamma y 255 1023 x y2 1 300 T T T T T 250 200 150 100 y grey level output value 8 bit DN 50 l ji 0 200 400 600 800 1000 1200 x grey level input value 10 bit DN Figure 4 41 Applying gamma correction to an image gamma gt 1 Grey level transformation Gamma y 255 1023 x y 1 300 T T T T T 250 200 150 100 y grey level output value 8 bit DN 50 1 0 200 400 600 800 1000 1200 x grey level input value 10 bit DN Figure 4 42 Applying gamma correction to an image gamma lt 1 4 8 Grey Level Transformation LUT 57 4 Functionality 4 8 3 User defined Look up Table In the User mode the mapping of input to output grey levels can be configured arbitrarily by the user There is an example file in the PFRemote folder LUT files can easily be generated with a standard spreadsheet tool The file has to be stored as tab delimited text file User LUT y f x 12 bit 8 bit Figure 4 43 Data path through LUT 4 8 4 Region LUT and LUT Enable Two LUTs and a Region LUT feature are available in the MV1 D2080 IE camera series Both LUTs can be enabled independently see 4 11 LUT 0 superseds LUT1 When Region LUT feature is enabled then the LUTs are only active in a user defined region Ex
51. ed for use in life support systems or in other critical systems The use of Photonfocus products in such applications is prohibited Photonfocus is a trademark and LinLog is a registered trademark of Photonfo amp gt cus AG CameraLink and GigE Vision are a registered mark of the Automated Imaging Association Product and company names mentioned herein are trade marks or trade names of their respective companies 1 Preface amp gt Reproduction of this manual in whole or in part by any means is prohibited without prior permission having been obtained from Photonfocus AG Cg Photonfocus can not be held responsible for any technical or typographical er rors 1 5 Legend In this documentation the reader s attention is drawn to the following icons CS Important note O Alerts and additional information A Attention critical warning DI Notification user guide 2 How to get started CameraLink 1 Install a suitable frame grabber in your PC To find a compliant frame grabber please see the frame grabber compatibility list at www photonfocus com 2 Install the frame grabber software Without installed frame grabber software the camera configuration tool PFRe Q mote will not be able to communicate with the camera Please follow the in structions of the frame grabber supplier 3 Remove the camera from its packaging Please make sure the following items are included with your camera e Power sup
52. er and Burst trigger Burst Trigger Period ms Average Value Normal trigger mode An external trigger event Burst trigger mode An external trigger event starts a predefined number of acquisitions starts one acquisition The period time between the acquisitions can be configured Interface or se Burst Trigger i 10 Tri Del eae Interfce or 1 saza Exposure Al Trigger H i Exposure time 1 Burst Trigger Period n t i i jeger Delay 1Acq i Aeg 1 Aeq 2 Acq n 1 Exposure 2 J L J Be L ep Exposure ime n Nr of Burst Triggers D iStrobe Pulse Width EA EE H Trigger Delay n EE 1 yStrobe Delay B Strobe Pulse Width SS l_ gt Strobe Delay Figure 7 4 MV1 D2080 160 trigger panel Trigger Trigger Source Free running The camera continuously delivers images with a certain configurable frame rate Interface Trigger The Trigger signal is applied to the camera by the CameraLink frame grabber or the USB interface respectively I O Trigger The trigger signal is applied directly to the camera on the power supply connector Exposure time defined by Camera The exposure time is defined by the property ExposureTime Trigger Pulse Width The exposure time is defined by the pulse width of the trigger signal level controlled exposure CE This property disables LinLog Burst trigger and simultaneous readout mode Cg Exposur
53. era For further details including the pinout please refer to Appendix A 73 5 Hardware Interface 5 1 3 Trigger and Strobe Signals The power connector contains an external trigger input and a strobe output The trigger input is equipped with a constant current diode which limits the current of the optocoupler over a wide range of voltages Trigger signals can thus directly get connected with the input pin and there is no need for a current limiting resistor that depends with its value on the input voltage The input voltage to the TRIGGER pin must not exceed 15V DC to avoid damage to the internal ESD protection and the optocoupler In order to use the strobe output the internal optocoupler must be powered with 5 15 V DC The STROBE signal is an open collector output therefore the user must connect a pull up resistor see Table 5 1 to STROBE VDD 5 15 V DC as shown in Fig This resistor should be located directly at the signal receiver Vtrigger 5 15 V DC TRIGGER Vstrobe 2 5 15 V DC STROBE VDD Figure 5 2 Circuit for the trigger input signals The maximum sink current of the STROBE pin is 8 mA Do not connect inductive or capacitive loads such loads may result in damage of the optocoupler If the application requires this please use voltage suppressor diodes in parallel with this components to protect the optocoupler 74 STROBE VDD Pull up Resistor 15V gt 3 9 kOhm 10V gt 2 7
54. ew The data path is the path of the image from the output of the image sensor to the output of the camera The sequence of blocks is shown in figure Fig Image Sensor FPN Correction i Digital Offset i Digital coarse Gain Digital fine Gain v Look up table LUT v 3x3 Convolver v Crosshairs insertion v Status line insertion I Test images insertion i Apply data resolution Image output Figure 4 32 camera data path 4 5 Data Path Overview 4 Functionality 4 6 Image Correction 4 6 1 Overview The camera possesses image pre processing features that compensate for non uniformities caused by the sensor the lens or the illumination This method of improving the image quality is generally known as Shading Correction or Flat Field Correction and consists of a combination of offset correction gain correction and pixel interpolation SD Since the correction is performed in hardware there is no performance limita tion of the cameras for high frame rates The offset correction subtracts a configurable positive or negative value from the live image and thus reduces the fixed pattern noise of the CMOS sensor In addition hot pixels can be removed by interpolation The gain correction can be used to flatten uneven illumination or to compensate shading effects of a lens Both offset and gain correction work on a
55. h can be subtracted from the live images in order to minimize the static noise Close the lens of the camera Click on the Validation button If the Set Black Ref button is still inactive the average of the image is out of range Change to panel Charateristics and change the Property BlackLevel0ffset until the average of the image is between 240 and 400DN Click again on the Validation button and then on the Set Black Ref Button EE If only offset and hot pixel correction is needed it is not necessary to calibrate a grey image see Calculate Gain Correction The gain correction is based on a grey reference image which is taken at uniform illumination to give an image with a mid grey level SD Gain correction is not a trivial feature The quality of the grey reference image is crucial for proper gain correction Produce a grey image with an average between 2200 and 3600DN Click on the Validation button to check the average If the average is in range the Set Grey Ref button is active Calculate Calculate the correction values into the camera RAM To make the correction values permanent use the Save to Flash button Save to Flash Save the current correction values to the internal flash memory A This will overwrite the factory presets 94 7 1 9 Info This panel shows camera specific information such as type code serial number and firmware revision of the FPGA and microcontroller and the description of the camera interfac
56. has 2 LUTs LUTO has higher priority than LUT1 Region LUT Both LUTs can be configured with ROI values The LUT only modifies the pixel values inside its ROI Overlapping is possible LUTO has higher priority Settings File LUT Fies LUT contents can be loaded from Enable LUT 0 Enable LUT 1 LUTO can be configured with the LUT1 can be configured with the First select the LUT to load save built in Gain Gamma Functions built in Gain Gamma Functions or with a file or with a file LUTO v Game Rate ps LUTO LUT 1 Mode Mode Load LUT from File Load File Gain O Gamma Gan O Gamma Update Save LUT to File value 1 0000 value 1 0000 Average Value Note After loading camera configuration from an ini file the LUTs are programmed with the built in Gain Gamma Functions In this case please reload the LUT file Region LUT Note Enable Region LUT Gain Function Region of LUT 0 Region of LUT 1 y 256 4096 value x value 1 4 x w vs E Gamma Function y 256 4096 value x value value 0 4 4 Figure 7 6 MV1 D2080 160 LUT panel Grey level transformation is remapping of the grey level values of an input image to new values which transform the image in some way The look up table LUT is used to convert the greyscale value of each pixel in an image into another grey value It is typically used to implement a transfer curve for contrast expansion Thi
57. he following figures show the mechanical drawing of the camera housing for the MV1 D2080 IE CMOS cameras all values in mm M42 Figure 8 2 Mechanical dimensions of the CameraLink model with M42 97 8 Mechanical and Optical Considerations F Mount Figure 8 3 Mechanical dimensions of the CameraLink model with F Mount adapter C Mount Figure 8 4 Mechanical dimensions of the CameraLink model with C Mount adapter 98 8 2 Optical Interface 8 2 1 Cleaning the Sensor The sensor is part of the optical path and should be handled like other optical components with extreme care Dust can obscure pixels producing dark patches in the images captured Dust is most visible when the illumination is collimated Dark patches caused by dust or dirt shift position as the angle of illumination changes Dust is normally not visible when the sensor is positioned at the exit port of an integrating sphere where the illumination is diffuse 1 The camera should only be cleaned in ESD safe areas by ESD trained personnel using wrist straps Ideally the sensor should be cleaned in a clean environment Otherwise in dusty environments the sensor will immediately become dirty again after cleaning 2 Use a high quality low pressure air duster e g Electrolube EAD400D pure compressed inert gas www electrolube com to blow off loose particles This step alone is usually sufficient to clean the sensor of the most common contaminants
58. high speed applications Global shutter e Greyscale resolution of up to 12 bit e On camera shading correction e 3x3 Convolver for image pre processing included on camera Up to 512 regions of interest MROI e 2 look up tables 12 to 8 bit on user defined image region Region LUT e Crosshairs overlay on the image e Image information and camera settings inside the image status line Software provided for setting and storage of camera parameters e The camera has a digital CameraLink interface e The compact size of 60 x 60 x 38mm M42 model makes the MV1 D2080 IE CMOS cameras the perfect solution for applications in which space is at a premium The general specification and features of the camera are listed in the following sections CS The MV1 D2080IE camera with the A2080IE sensor will be available on request 13 3 Product Specification 3 2 Feature Overview Characteristics Interfaces MV1 D2080 IE Series CameraLink base configuration Camera Control Configuration Interface PFRemote Windows GUI or programming library CLSERIAL 9 600 baud up to 1 5Mbaud user selectable Trigger Modes Image pre processing Interface Trigger External opto isolated trigger input Shading Correction Offset and Gain 3x3 Convolver included on camera Features 2 look up tables 12 to 8 bit on user defined image region Region LUT Greyscale resolution 12 bit 10 bit 8 bit Regio
59. ialog will open The device is closed when PFRemote is closed Alternatively e g when connecting another camera or evaluation kit the device can also be closed explicitely by right clicking on the port name and choosing Close Make sure that the configuration dialog is closed prior to closing the port DI Errors warnings or other important activities are logged in a log window at the bottom of the main window If the device does not open check the following e Is the power LED of the camera active Do you get an image in the display software of your frame grabber e Verify all cable connections and the power supply e Check the communication LED of the camera do you see some activity when you try to access the camera 6 5 Graphical User Interface GUI 79 6 The PFRemote Control Tool 6 5 3 Main Buttons The buttons on the right side of the configuration dialog store and reset the camera configuration x Reset Store as defaults Settings file 2 al Factory Reset Figure 6 3 Main buttons Reset Reset the camera and load the default configuration Store as defaults Store the current configuration in the camera flash memory as the default configuration After a reset the camera will load this configuration by default Settings file File Load Load a stored configuration from a file Settings file File Save Save current configuration to a file Factory Reset Reset camera and reset the configuration to the
60. issed Trigger Counter 0 Update Status Line Figure 2 4 PFRemote start window 11 Check the status LED on the rear of the camera DI The status LED lights green when an image is being produced and it is red when serial communication is active For more information see Section 12 You may display images using the software that is provided by the frame grabber manufacturer 11 2 How to get started CameraLink 12 Product Specification 3 1 Introduction The MV1 D2080 IE and BL1 D2080 IE CMOS camera series are built around the monochrome A2080 IE CMOS image sensor from Photonfocus that provides a resolution of 2080 x 2080 pixels at a wide range of spectral sensitivity It is aimed at standard applications in industrial image processing The MV1 D2080 IE and BL1 D2080 IE CMOS camera series are identical with the exception of the camera housing For the sake of readability the simultaneous use of MV1 and BL1 is omitted All specification apply to both camera series The principal advantages are e Resolution of 2080 x 2080 pixels Wide spectral sensitivity from 320 nm to 1030 nm Enhanced near infrared NIR sensitivity with the A2080IE CMOS image sensor e High quantum efficiency gt 50 e High pixel fill factor gt 60 Superior signal to noise ratio SNR e Low power consumption at high speeds e Very high resistance to blooming e High dynamic range of up to 120 dB e Ideal for
61. ith simultaneous readout The camera continuously delivers images as fast as possible Exposure time of the next image can start during the readout time of the current image exposure n idle exposure n 1 idle read out n 1 read out n read out n 1 frame time Figure 4 4 Timing in free running simultaneous readout mode readout time gt exposure time 22 exposure n 1 exposure n exposure n 1 idle read out n 1 idle read out n frame time Figure 4 5 Timing in free running simultaneous readout mode readout time lt exposure time When the acquisition of an image needs to be synchronised to an external event an external trigger can be used refer to Section 4 4 In this mode the camera is idle until it gets a signal to capture an image exposure n ide X exposure n 1 lt Q ide gt Readoutn 1 idle gt Readout n Cidle gt Readout n 1 5 external trigger P _ gt earliest possible trigger E Figure 4 6 Timing in triggered simultaneous readout mode 4 1 2 Readout Timing Sequential readout timing By default the camera is in free running mode and delivers images without any external control signals The sensor is operated in sequential readout mode which means that the sensor is read out after the exposure time Then the sensor is reset a new exposure starts and the readout of the image information begins again The data is output on the rising edge of the pixel clock The signa
62. kOhm 8v gt 2 2 kOhm 7V gt 1 8 kOhm 5V gt 1 0 kOhm Table 5 1 Pull up resistor for strobe output and different voltage levels 5 1 4 Status Indicator CameraLink cameras A dual color LED on the back of the camera gives information about the current status of the CameraLink cameras LED Green Green when an image is output At slow frame rates the LED blinks with the FVAL signal At high frame rates the LED changes to an apparently continuous green light with intensity proportional to the ratio of readout time over frame time LED Red Red indicates an active serial communication with the camera Table 5 2 Meaning of the LED of the CameraLink cameras 5 2 CameraLink Data Interface The CameraLink standard contains signals for transferring the image data control information and the serial communication Data signals CameraLink data signals contain the image data In addition handshaking signals such as FVAL LVAL and DVAL are transmitted over the same physical channel Camera control information Camera control signals CC signals can be defined by the camera manufacturer to provide certain signals to the camera There are 4 CC signals available and all are unidirectional with data flowing from the frame grabber to the camera For example the external trigger is provided by a CC signal see Table 5 3 for the CC assignment CC1 EXSYNC External Trigger May be generated either by the frame grabber
63. latote ma gt le 112 Xs zu picture 1002 black reference offset correction image matrix Figure 4 33 Schematic presentation of the offset correction algorithm How to Obtain a Black Reference Image In order to improve the image quality the black reference image must meet certain demands Cg The detailed procedure to set the black reference image is described in Section 7 1 8 e The black reference image must be obtained at no illumination e g with lens aperture closed or closed lens opening e It may be necessary to adjust the black level offset of the camera In the histogram of the black reference image ideally there are no grey levels at value 0 DN after adjustment of the black level offset All pixels that are saturated black 0 DN will not be properly corrected see Fig 4 34 The peak in the histogram should be well below the hot pixel threshold of 1008 DN 12 bit e Camera settings may influence the grey level Therefore for best results the camera settings of the black reference image must be identical with the camera settings of the image to be corrected Histogram of the uncorrected black reference image T T T T T T black level offset ok black level offset too low Relative number of pixels 600 800 1000 Grey level 12 Bit DN 1200 1400 1600 Figure 4 34 Histogram of a proper black reference image for offset corre
64. ls FRAME VALID FVAL and LINE VALID LVAL mask valid image information The signal SHUTTER indicates the active exposure period of the sensor and is shown for clarity only Simultaneous readout timing To achieve highest possible frame rates the camera must be set to Free running mode with simultaneous readout The camera continuously delivers images as fast as possible Exposure time of the next image can start during the readout time of the current image The data is output on the rising edge of the pixel clock The signals FRAME VALID FVAL and LINE VALID LVAL mask valid image information The signal SHUTTER indicates the active integration phase of the sensor and is shown for clarity only 4 1 Image Acquisition 23 4 Functionality PCLK LI EE LI I LI LM LI Lf LI LM LI LN LI LA EE Frame Time SHUTTER Exposure Time FVAL i U HA c I 4 CPRE Linepause Linepause Linepause First Line Last Line DVAL Figure 4 7 Timing diagram of sequential readout mode 24 Peck IIT DATED WNN DLL A Frame Time SHUTTER l l Exposure Exposure Time Time FVAL l 1 Li Io CPRE Linepause Linepause Linepause CPRE First Line Last Line DVAL Figure 4 8 Timing diagram of simultaneous readout mode readout time exposure time pek MIMO A Frame Time SHUTTER q __ _ oe ln O Exposure Time SSS EE FVAL SS CPRE Linepau
65. lver This tab contains the Convolver settings MV1 D2080 160 clO 2 Serial 1291 X p Exposure Window Trigger Data Output LUT LinLog Convolver Correction Info Reset Convolver 3x3 Store as Defaults The convolver is a discrete 2D convolution filter with a 3x3 convolution kernel The kernel coefficients can be defined Settings File The values of the convolver are always in signed 12 bit 4096 4095 Note minimum window height of 3 is required Enable Factory Reset Offset 12bit 0 Presets Normal Frame Rate fps Scale 1 Coefficients Average Value E Ceeffl Coeff2 h Coeff3 Coeff Coeff5 Coeffi Coeff Coeffo Formula Poz x y z him n palz m y o offset mn Figure 7 8 MV1 D2080 160 convolver panel Offset Offset Offset value o Range 4096 4095 Scale Scale Scale value s Range 1 4095 Presets Presets Selecting a Preset modifies all Convolver values Offset Scale Coefficients Coefficients Coefficents Coefficients of the convolution kernel h Range 4096 4095 92 7 1 8 Correction This tab contains correction settings MV1 D2080 160 e cl0 2 Serial 1291 EY Exposure Window Trigger Data Output LUT LinLog Convolver Correction Info Correction Mode Calibration Store as Defaults Ooft Offset FPN Hotpixel Gain Correction O offset Correction Offset Hotpixel Produce a black i
66. mage with Produce a grey image with O ixel 240DN lt average lt 400DN 2200DN lt average lt 3600DN Hetbikel 128 O 128 O Offset Gain ITE O Offset Gain Hotpixel Validation Validation Factory Reset Frame Rate fps Settings File Black Level Offset 144 Calculate Correction 4 sec Update Save to Flash 45 sec Average Value WARNING The factory presets will be deleted Please refer to the manual for more details about the correction modes Figure 7 9 MV1 D2080 160 correction panel Correction Mode This camera has image pre processing features that compensate for non uniformities caused by the sensor the lens or the illumination Off No correction Offset Activate offset correction Offset Hotpixel Activate offset and hot pixel correction Hotpixel Activate hot pixel correction Offset Gain Activate offset and gain correction Offset Gain Hotpixel Activate offset gain and hot pixel correction Black Level Offset It may be necessary to adjust the black level offset of the camera Black Level Offset Black level offset value Use this to adjust the black level 7 1 MV1 D2080 160 93 7 Graphical User Interface GUI Calibration Offset FPN Hotpixel Correction The offset correction is based on a black reference image which is taken at no illumination e g lens aperture completely closed The black reference image contains the fixed pattern noise of the sensor whic
67. me of the current image is finished Simultaneous readout interleave The frame time is determined by the maximum of the exposure time or of the readout time which ever of both is the longer one Exposure time of the next image can start during the readout time of the current image Readout Mode MV1 D2080 IE Series Sequential readout available Simultaneous readout available Table 4 1 Readout mode of MV1 D2080 Series camera The following figure illustrates the effect on the frame rate when using either the sequential readout mode or the simultaneous readout mode interleave exposure fps 1 readout time Frame rate f fps Simultaneous EN gt 5 readout mode EN f fps 1 exposure time Pt Sequential rem readout mode 00 7M fps 1 readout time exposure time exposure time lt readout time exposure time gt readout time A Exposure time exposure time readout time Figure 4 1 Frame rate in sequential readout mode and simultaneous readout mode Sequential readout mode For the calculation of the frame rate only a single formula applies frames per second equal to the inverse of the sum of exposure time and readout time 21 4 Functionality Simultaneous readout mode exposure time lt readout time The frame rate is given by the readout time Frames per second equal to the inverse of the readout time Simultaneous readout mode exposure
68. mic response can be smoothly adjusted by software and is continuously differentiable and monotonic Grey Value 100 Linear Weak compression Response Resulting Linlog Response 0 Value2 Light Intensity Figure 4 10 Resulting LinLog2 response curve LinLog is controlled by up to 4 parameters Timel Time2 Valuel and Value2 Valuel and Value2 correspond to the LinLog voltage that is applied to the sensor The higher the parameters Valuel and Value2 respectively the stronger the compression for the high light intensities Timel 4 2 Pixel Response 27 4 Functionality and Time2 are normalised to the exposure time They can be set to a maximum value of 1000 which corresponds to the exposure time Examples in the following sections illustrate the LinLog feature LinLog1 In the simplest way the pixels are operated with a constant LinLog voltage which defines the knee point of the transition This procedure has the drawback that the linear response curve changes directly to a logarithmic curve leading to a poor grey resolution in the logarithmic region see Fig V LinLog Value1 Value2 0 Time1 Time2 max t 1000 Figure 4 11 Constant LinLog voltage in the Linlog1 mode Typical LinLog1 Response Curve Varying Parameter Value1 Time1 1000 Time2 1000 Value2 Value1 300 T T T T T 250 200 150 100 Output grey level 8 bit DN 50 0 Illumination Intensity
69. n of Interest ROI Up to 512 regions of interest MROI Test pattern LFSR and grey level ramp Image information and camera settings inside the image status line Crosshairs overlay on the image High blooming resistance Opto isolated trigger input and opto isolated strobe output Table 3 1 Feature overview see Chapter 4 for more information Y g Q 0 3 0 A y Figure 3 1 MV1 D2080 IE CMOS camera series with M42 mount lens 14 3 3 Technical Specification Technical Parameters Technology Scanning system MV1 D2080 IE Series CMOS active pixel APS Progressive scan Optical format diagonal 1 3 25 5 mm diagonal maximum resolution Resolution 2 3 11 6 mm diagonal 1024 x 1024 resolution with ROI 2080 x 2080 pixels Pixel size Active optical area 8 um x 8 um 16 64 mm x 16 64 mm maximum Random noise lt 0 3 DN 8 bit Fixed pattern noise FPN Fixed pattern noise FPN 3 4 DN 8 bit correction OFF lt 1DN 8 bit correction ON 92 Dark current MV1 D2080 0 65 fA pixel amp 27 C Dark current MV1 D2080IE Full well capacity 0 79 fA pixel amp 27 C 90 ke Spectral range MV1 D2080 Spectral range MV1 D2080IE 350 nm 980 nm see Fig 350 nm 1100 nm see Fig 3 Responsivity MV1 D2080 295 x10 DN J m amp 670 nm 8 bit Responsivity MV1 D2080IE Quantum Efficiency
70. n of interest ROI is defined as a rectangle X Y W H where X X coordinate starting from 0 in the upper left corner Y Y coordinate starting from 0 in the upper left corner W Window width in steps of 2 pixel H Window height Set to max ROI Set Window to maximal ROI X 0 Y 0 W 2080 H 2080 CS Window width is only available in steps of 2 pixel When using ROI in x direction enable DataValid DVAL feature on the frame grabber 7 1 MV1 D2080 160 83 7 Graphical User Interface GUI Decimation Decimation reduces the number of pixels in y direction Decimation can also be used together with a ROI or MROI Decimation in y direction transfers every n th row only and directly results in reduced read out time and higher frame rate respectively Decimation Y Decimation value for y direction Example Value 3 reads every third row only Crosshairs Crosshairs is a cross inside the image The crosshairs value is overlapped the original image data The position of the crosshairs can be configured The unit of the grey value is always 12 bit Enable Crosshairs Enable crosshairs X Vertical line position of crosshairs Y Horizontal line position of crosshairs Value 12bit Crosshairs grey value in 12bit Multi ROI This camera can handle up to 512 different regions of interest The multiple ROIs are joined together and form a single image which is transferred to the frame grabber An ROI is defined
71. o TBD ms 2080 2076 x 128 tro 1 9 ms tro TBD ms 2080 2076 x 1 tro 0 22 ms tro TBD ms Table 4 6 Read out time at different ROI settings for the MV1 D2080 IE CMOS camera series in sequential read out mode Exposure time MV1 D2080 IE 160 MV1 D2080 IE 240 34 34 fps TBD TBD fps 34 34 fps TBD TBD fps 34 34 fps TBD TBD fps 33 34 fps TBD TBD fps 32 34 fps TBD TBD fps 29 34 fps TBD TBD fps 25 34 fps TBD TBD fps 12 ms 24 34 fps TBD TBD fps 20 ms 20 34 fps TBD TBD fps Table 4 7 Frame rates of different exposure times sequential readout mode simultaneous readout mode resolution 2080x 2080 pixel MV1 D2080 IE 240 2076 x 2080 FPN correction on 4 3 4 Multiple Regions of Interest The MV1 D2080 IE camera series can handle up to 512 different regions of interest This feature can be used to reduce the image data and increase the frame rate An application example for using multiple regions of interest MROI is a laser triangulation system with several laser lines The multiple ROIs are joined together and form a single image which is transferred to the frame grabber An individual MROI region is defined by its starting value in y direction and its height The starting value in horizontal direction and the width is the same for all MROI regions and is defined by the ROI settings The maximum frame rate in MROI mode depends on the number of rows an
72. onfocus website 76 6 The PFRemote Control Tool 6 1 Overview PFRemote is a graphical configuration tool for Photonfocus cameras The latest release can be downloaded from the support area of www photonfocus com All Photonfocus cameras can be either configured by PFRemote or they can be programmed with custom software using the PFLib SDK PFLIB 6 2 PFRemote and PFLib As shown in Fig 6 1 the camera parameters can be controlled by PFRemote and PFLib respectively To grab an image use the software or the SDK that was delivered with your frame grabber Frame Grabber Figure 6 1 PFRemote and PFLib in context with the CameraLink frame grabber software 6 3 Operating System The PFRemote GUI is available for Windows OS only For Linux or QNX operating systems we provide the necessary libraries to control the camera on request but there is no graphical user interface available SD If you require support for Linux or QNX operating systems you may contact us for details of support conditions 6 4 Installation Notes Before installing the required software with the PFInstaller make sure that your frame grabber software is installed correctly Several DLLs are necessary in order to be able to communicate with the cameras 77 6 The PFRemote Control Tool PFCAM DLL The main DLL file that handles camera detection switching to specific camera DLL and provides the interface for the SDK e
73. pattern received at the frame grabber and typical histogram for error free data transmission M Histogramm Port LT Xun Port Picture amp 440 Mi m rm n Figure 4 58 LFSR test pattern received at the frame grabber and histogram containing transmission errors CameraLink cables contain wire pairs which are twisted in such a way that the SD cable impedance matches with the LVDS driver and receiver impedance Excess stress on the cable results in transmission errors which causes distorted images Therefore please do not stretch and bend a CameraLink cable In robots applications the stress that is applied to the CameraLink cable is especially high due to the fast movement of the robot arm For such applications special drag chain capable cables are available Please contact the Photonfocus Support for consulting expertise Appropriate CameraLink cable solutions are available from Photonfocus 70 4 13 Configuration Interface CameraLink A CameraLink camera can be controlled by the user via a RS232 compatible asynchronous serial interface This interface is contained within the CameraLink interface as shown in Fig 4 59 and is physically not directly accessible Instead the serial communication is usually routed through the frame grabber For some frame grabbers it might be necessary to connect a serial cable from the frame grabber to the serial interface of the PC Image data FVAL LVAL DVAL
74. photon focus User Manual MV1 D2080 IE CameraLink Series BL1 D2080 IE CameraLink Series CMOS Area Scan Camera MAN047 04 2011 V1 0 All information provided in this manual is believed to be accurate and reliable No responsibility is assumed by Photonfocus AG for its use Photonfocus AG reserves the right to make changes to this information without notice Reproduction of this manual in whole or in part by any means is prohibited without prior permission having been obtained from Photonfocus AG Contents 1 1 AboutPhotonfocus kk kk kK kK KK KK kK KK kK KK KK KK KK a KK kk T2 Contaci n Rc MEL 1 3 Sales Offices 2 ink Sak d oko HER b re age slede ER ow xoxo Ru tan tke aen nic MG RE GUN dede Gina SE Ni ese F TTER eee E 2 How to get started CameraLink 3 Product Specification 3 1 Introduction an anda di ln a ka and dal a nk EW os ax 4 Functionality 4 1 Image Acquisition xx xoxo x ek F ln me A KSSE GEN KE FEE oe da 4 1 1 Readout Modes o llle 4 1 2 Readout Timing 4 1 3 Exposure Control 4 2 Pixel Response nrk llle een 4 2 1 Linear Response PA A 4 3 1 Region of Interest ROI EE EN a een 4 3 3 Calculation of the maximum frame rate 4 3 4 Multiple Regions of Interest 44 Trigger and Strobe llle 4 4 1 Introduction kk kk o nn P PETITS 4 4 3 Exposure Time Control 4 44 Trigger Delay 22er 4 4 5 Burst Trigger 4 4 06
75. ply connector 7 pole power plug e Camera body cap If any items are missing or damaged please contact your dealership 4 Remove the camera body cap from the camera and mount a suitable lens should always be held with the opening facing downwards to prevent dust or When removing the camera body cap or when changing the lens the camera debris falling onto the CMOS sensor Figure 2 1 Camera with protective cap and lens Do not touch the sensor surface Protect the image sensor from particles and 4 dirt 2 How to get started CameraLink The sensor has no cover glass therefore dust on the sensor surface may resemble to clusters or extended regions of dead pixel Cg To choose a lens see the Lens Finder in the Support area at www photonfocus com 5 Connect the camera to the frame grabber with a suitable CameraLink cable see Fig 2 2 CameraLink cables can be purchased from Photonfocus directly www photonfocus com Please note that Photonfocus provides appropriate solutions for your advanced vision applications 7 nn lt gt Figure 2 2 Camera with frame grabber power supply and cable A Do not connect or disconnect the CameraLink cable while camera power is on For more information about CameraLink see Section 4 13 6 Connect a suitable power supply to the provided 7 pole power plug For the connector assembly see Fig The pinout of the connector is shown in Appendix A Ch
76. r This is a counter for trigger pulses that were blocked because the trigger pulse was received during image exposure or readout In free running mode it counts all pulses received from interface trigger or from I O trigger interface Missed Burst Trigger This is a counter for burst trigger pulses that were blocked because the burst trigger pulse was received during the last burst is not yet finished To update the value of the information properties click on the Update Button to reset the properties click on the Reset Button Status Line Enable Status Line The status line replaces the last line of an image with image information please refer the manual for additional information Temperature Imager PCB deg C The temperature of the imager PCB Imager deg C The temperature of the imager device ADC PCB deg C The temperature of the Analog Digital Converter PCB Update Press this button to update all temperature values 96 Mechanical and Optical Considerations 8 1 Mechanical Interface During storage and transport the camera should be protected against vibration shock moisture and dust The original packaging protects the camera adequately from vibration and shock during storage and transport Please either retain this packaging for possible later use or dispose of it according to local regulations 8 1 1 MV1 cameras with CameraLink Interface Figure 8 1 Left M42 Middle F Mount Right C Mount T
77. r pulse Timing diagram Fig 4 30 shows the detailed timing for the external trigger mode with pulse width controlled exposure time t external trigger pulse input exposure trigger after isolator soga trigger pulse rising edge camera control t jitter l delayed trigger rising edge for shutter set Uirigger delsy trigger pulse falling edge camera control t jitter delayed trigger falling edge shutter reset t trigger delay internal shutter control t trigger offset t exposure delayed trigger for strobe control t strobe delay internal strobe control t t strobe offset strobe duration external strobe pulse output issue Figure 4 30 Timing diagram for the Pulsewidth controlled exposure time The timing of the rising edge of the trigger pulse until to the start of exposure and strobe is equal to the timing of the camera controlled exposure time see Section 4 4 3 In this mode however the end of the exposure is controlled by the falling edge of the trigger Pulsewidth The falling edge of the trigger pulse is delayed by the time t4_iso input Which is results from the signal isolator This signal is clocked into the FPGA which leads to a jitter of titter The pulse is 4 4 Trigger and Strobe 45 4 Functionality then delayed by tirigger delay by the user defined value which can be configured via camera software After
78. s camera performs a 12 to 8 bit mapping so that 4096 input grey levels can be mapped to 256 output grey levels 0 to 4096 and 0 to 255 This camera support 2 LUT both are identical The default LUTs is a gain function with value 1 LUTO has higher priority as LUT1 Both LUT can be configured with the built in Gain Gamma functions or with a LUT file LUTX Enable LUT X Enable the LUTX Gain Linear function Y 256 4096 value X Valid range for value 1 4 Gamma Gamma function Y 256 4096 value X value Valid range for value 0 4 4 value Enter a value The LUT will be calculated and downloaded to the camera Region LUT Both LUT can be configured with ROI vlaues The LUT is only working inside the the ROI values Overlapping is possible LUTO has higher priority Enable Region LUT Enable the region LUT functionality 7 1 MV1 D2080 160 89 7 Graphical User Interface GUI Region of LUT X X coordinate of region LUT starting from 0 in the upper left corner Y Y coordinate of region LUT starting from 0 in the upper left corner W Region LUT window width in steps of 2 pixel H Region LUT window height Set to max ROI Set Region LUT window to maximal ROI X 0 Y 0 W 2080 H 2080 LUT Files To load or save a LUT file LUT Index Select the LUT you want to load or save a file File functions Load File Load a user defined LUT file into the camera txt tab delimited There is an
79. se Linepause Linepause CPRE LVAL Pt CIC First Line Last Line DVAL Figure 4 9 Timing diagram simultaneous readout mode readout time lt exposure time 4 1 Image Acquisition 25 4 Functionality Frame time Exposure time PCLK Frame time is the inverse of the frame rate Period during which the pixels are integrating the incoming light Pixel clock on CameraLink interface SHUTTER FVAL Frame Valid Internal signal shown only for clarity Is high during the exposure time Is high while the data of one complete frame are transferred LVAL Line Valid Is high while the data of one line are transferred Example To transfer an image with 640x480 pixels there are 480 LVAL within one FVAL active high period One LVAL lasts 640 pixel clock cycles DVAL Data Valid Is high while data are valid DATA Transferred pixel values Example For a 100x100 pixel image there are 100 values transferred within one LVAL active high period or 100 100 values within one FVAL period Line pause Delay before the first line and after every following line when reading out the image data Table 4 2 Explanation of contro and data signals used in the timing diagram These terms will be used also in the timing diagrams of Section 4 4 4 1 3 Exposure Control The exposure time defines the period during which the image sensor integrates the incoming light Refer to Ta
80. set t strobe duration l l external strobe pulse output gt Fusa Figure 4 31 Timing diagram for the burst trigger mode The timing diagram of the burst trigger mode is shown in Fig The timing of the external trigger pulse input until to the trigger pulse internal camera control is equal to 46 the timing in the section Fig This trigger pulse then starts after a user configurable burst trigger delay time thurst trigger delay the internal burst engine which generates n internal triggers for the shutter and the strobe control A user configurable value defines the time thurst period time between two acquisitions MV1 D2080 IE 160 MV 1 D2080 IE 160 Timing Parameter Minimum Maximum ta iso input 45 ns 60 ns titter 0 25 ns tirigger delay 0 0 425 Tburst trigger delay 0 0 42 s thurst period time depends on camera settings 0 42 s ttrigger offset NON burst mode 100 ns 100 ns tirigger offset Durst mode 125 ns 125 ns texposure 10 us 0 42 s tstrobe delay 0 0 42 s tstrobe offset NON burst mode 100 ns 100 ns tstrobe offset Durst mode 125 ns 125 ns tstrobe duration 200 ns 0 42 s ta iso output 45ns 60 ns tirigger pulsewidth 200 ns n a Number of bursts n 1 30000 Table 4 8 Summary of timing parameters relevant in the external trigger mode using camera MV1 D2080 IE 160 4 4 6 Software Trigger The software trigger enables to emulate an ex
81. solution e g 2080 x 2080 pixels By reducing the image size to a certain region of interest ROI the frame rate can be drastically increased A region of interest can be almost any rectangular window and is specified by its position within the full frame and its width W and height H Table 4 3 and Table 4 4 present numerical examples of how the frame rate can be increased by reducing the ROI e Reductions in x direction result in a higher frame rate Reduction in y direction result in a lower data bandwidth SD The minimum width of the region of interest depends on the model of the MV1 D2080 IE camera series For more details please consult Table 4 5 It is recommended to re adjust the settings of the shading correction each time a new region of interest is selected 4 DI To use ROI in x direction the DVAL feature of the framegraber must be enabled 32 ROI Dimension Standard MV1 D2080 IE 160 2080 x 2080 full resolution 34 2080 x 1024 70 1024 x 2080 34 1920 x 1080 Full HD 67 1280 x 1024 SXGA 70 1280 x 768 WXGA 93 1280 x 720 HD ready 99 800 x 600 SVGA 119 640 x 480 VGA 148 2080 x 900 80 2080 x 800 90 2080 x 700 102 2080 x 600 119 2080 x 512 139 2080 x 500 142 2080 x 300 232 2080 x 256 270 2080 x 200 340 2080 x 128 510 2080 x 100 634 2080 x 64 921 2080 x 32 1539 2080 x 16 2317 2080 x 3 3932 2080 x 2 4154 2080 x 1 4404 Table 4
82. ternal trigger pulse by the camera software through the serial data interface It works with both burst mode enabled and disabled As soon as it is performed via the camera software it will start the image acquisition s depending on the usage of the burst mode and the burst configuration The trigger mode must be set to Interface Trigger or I 0 Trigger 4 4 7 Strobe Output The strobe output is an opto isolated output located on the power supply connector that can be used to trigger a strobe The strobe output can be used both in free running and in trigger mode There is a programmable delay available to adjust the strobe pulse to your application The strobe output needs a separate power supply Please see Section Section 5 1 3 and Figure Fig 4 27 and Fig 4 28 for more information 4 4 Trigger and Strobe 47 4 Functionality MV1 D2080 IE 240 MV1 D2080 IE 240 ta iso input 45 ns 60 ns ttrigger delay 0 28 s thurst trigger delay 0 0 28 s thurst period time depends on camera settings 0 28 s ttrigger offset NON burst mode 66 7 ns 66 7 ns texposure 0 28 s tstrobe delay 0 28 s tstrobe oftset NON burst mode E 66 7 ns tstrobe offset burst mode 83 3 ns tstrobe duration 0 28 s ta iso output 60 ns tirigger pulsewidth 200 ns n a Table 4 9 Summary of timing parameters relevant in the external trigger mode using camera MV1 D2080 IE 240 48 4 5 Data Path Overvi
83. the trigger offset time tirigger oftset the exposure is stopped 4 4 4 Trigger Delay The trigger delay is a programmable delay in milliseconds between the incoming trigger edge and the start of the exposure This feature may be required to synchronize to external strobe with the exposure of the camera 4 4 5 Burst Trigger The camera includes a burst trigger engine When enabled it starts a predefined number of acquisitions after one single trigger pulse The time between two acquisitions and the number of acquisitions can be configured by a user defined value via the camera software The burst trigger feature works only in the mode Camera controlled Exposure Time The burst trigger signal can be configured to be active high or active low When the frequency of the incoming burst triggers is higher than the duration of the programmed burst sequence then some trigger pulses will be missed A missed burst trigger counter counts these events This counter can be read out by the user external trigger pulse input trigger after isolator trigger pulse internal camera control jitter delayed trigger for burst trigger engine e Uurstitriager d lay delayed trigger for shutter control t burst period time trigger delay internal shutter control t trigger offset t exposure delayed trigger for strobe control t strobe delay internal strobe control t strobe off
84. ther than manufacturer or for any defects caused by any use of the product in a manner for which it was not designed or by the negligence of any party other than manufacturer 103 9 Warranty 104 References 10 All referenced documents can be downloaded from our website at www photonfocus com CL CameraLink Specification January 2004 SW002 PFLib Documentation Photonfocus August 2005 MANO25 User Manual microDisplayUSB2 0 Photonfocus November 2005 AN001 Application Note AN006 Application Note AN007 Application Note ANOOS Application Note ANO10 Application Note ANO21 Application Note AN026 Application Note AN030 Application Note LinLog Photonfocus December 2002 Quantum Efficiency Photonfocus February 2004 Camera Acquisition Modes Photonfocus March 2004 Photometry versus Radiometry Photonfocus December 2004 Camera Clock Concepts Photonfocus July 2004 CameraLink Photonfocus July 2004 LFSR Test Images Photonfocus September 2005 LinLog Parameter Optimization Strategies February 2009 105 10 References 106 A Pinouts A 1 Power Supply Connector The power supply plugs are available from Binder connectors at www binder connector de Fig A 2 shows the power supply plug from the solder side The pin assignment of the power supply plug is given in Table A 2 It is extremely important that you apply the appropriate voltages to your camera Incorrect voltages will
85. trol software Real Time counter The time counter starts at 0 after camera start and counts real time in units of 1 micro second The time counter can be reset by the software in the SDK Counter width 32 bit Missed trigger counter The missed trigger counter counts trigger pulses that were ignored by the camera because they occurred within the exposure or read out time of an image In free running mode it counts all incoming external triggers counter width 8 bit no wrap around Missed burst trigger counter The missed burst trigger counter counts trigger pulses that were ignored by the camera in the burst trigger mode because they occurred while the camera still was processing the current burst trigger sequence Average image value The average image value gives the average of an image in 12 bit format 0 4095 DN regardless of the currently used grey level resolution 4 11 2 Status Line If enabled the status line replaces the last row of the image with camera status information Every parameter is coded into fields of 4 pixels LSB first and uses the lower 8 bits of the pixel value so that the total size of a parameter field is 32 bit see Fig 14 54 The assignment of the parameters to the fields is listed in 4 12 E The status line is available in all camera modes MSB LSB MSB LSB MSB LSB MSB LSB MSB LSB Pixel 15 16 17 19 110111 H2 113 114 115 16 117 118 119 20 21 122 123 FF 00 AA 55 Preamble Field 0 Field 1 Field 2
86. up is shown in Fig I O Trigger In the I O trigger mode the trigger signal is applied directly to the camera by the power supply connector via an optocoupler A setup of this mode is shown in Fig The electrical interface of the I O trigger input and the strobe output is described in Section 5 1 3 4 4 3 Exposure Time Control Depending on the trigger mode the exposure time can be determined either by the camera or by the trigger signal itself Camera controlled Exposure time In this trigger mode the exposure time is defined by the camera For an active high trigger signal the camera starts the exposure with a positive trigger edge and stops it when the preprogrammed exposure time has elapsed The exposure time is defined by the software 42 Machine Vision System PC Camera CameraLink Frame Grabber EXSYNC CC1 Softtrigger lt Data CameraLink Figure 4 26 Interface trigger source Machine Vision System PC Camera 1 CameraLink Frame Grabber Camera 2 Data CameraLink Trigger Source Figure 4 27 Interface trigger with 2 cameras and frame grabber I O card Trigger controlled Exposure time In this trigger mode the exposure time is defined by the pulse width of the trigger pulse For an active high trigger signal the camera starts the exposure with the positive edge of the trigger signal and stops it with the negative edge SD Trigger controlled exposure time is not

User Manual MV1-D2080(IE) CameraLink®Series

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User Manual MV1-D2080(IE) CameraLink®Series