Untitled - Stemmer Imaging
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1. 16 4 5 3 Frame Rate Calculation Formula sss 17 4 6 External Trigger and Strobe mense 18 4 6 L Trigger SOURCE cscs he waded ced wie relie ee deis ere teilen deat bee 18 40 2 Trigger MOGOG uo 18 ni ii Seas eee eee 20 4 7 Black Level Adjustment ee ee heme senses seen 20 4 8 Configuration Interface einn ricorda eed dens abe ies Re ERU e eid 20 4 8 1 CameraLink Interface ccccccc cece cece eene mene 20 4 8 2 USB 2 0 Interface cece cece eee eee emen e emen 21 5 Hardware Interface nein e cx rra e ox RYE RR 23 mE Ie 23 5 1 1 23 5 1 2 USB2 0 Connector deter 23 5 1 3 Power Supply inet ence eens RR Ie D cree REN oe ex nea evi erie eon 23 5 1 4 Trigger and Strobe Signals for USB2 0 models 23 5 1 5 Status Indicator for CameraLink 24 5 1 6 Status Indicato2. sme ne ene 9 3 3 Frame grabber relevant Configuration CameraLink models only 12 4 F nctionality xe eR DR TERERG CR GRE EREQNRRETEITRTe IER 13 4 l Jmage AcqulsitlOnz i er o t ie rt i d D 13 4 1 1 Free running and Trigger m 13 4 1 2 Exposure Control ee een sensns 13 4 1 3 Maximum Frame 13 4 1 4 Sensor Read out ee ene ee emen 13 4 2 Pixel ccc cece nnn eee esses ee rennes nnn nnn 14 4 2 1 Linear Response ee nemen semen sense eee 14 4 2 2 Analog Galenn nee sense nnne 14 4 2 3 Digital GiM icase siapan Deed 14 4 3 Bayer Color Pattern enean Rasen epe enr Coulee os RY 15 4 4 Test mag e P Dc i RO FICA HERR 15 4 5 Reduction of Image 9 6 cece mem sese semen nennen nennen 16 4 5 1 Region of Interest ssssssssssssssssssssssss ee eese eene eese sense n nsns 16 4 5 2 ROI Example
3. RESET MODE if texp lt treadout trame texp treadout else trame texp tu CPRE RESET MODE end Frame rate 1 trame Table 9 Symbols used in the frame rate calculation formula CameraLink USB2 0 MV D640 66 CL MV D640 33 CL MV D640 48 U2 MV D640C 48 U2 MV D640C 66 CL MV D640C 33 CL monochrome color Horizontal 3 96 Blanking HB CPRE 127 HB RESET 550 Pixel clock f 66 MHz 33 MHz 48 MHz 16 MHz Pixel clock 15 15 ns 30 30 ns 20 83 ns 62 5 ns period t MODE Constant MODE 1 Intel supported chipset MODE 1 No Intel supported chipset MODE 2 Rx Constant R 671 independent of ROI Py Height of the ROI texp Exposure time in s treadout Read out time s REV 2 0 Page 17 photon focus MV D640 User s Manual Example 1 MV D640 66 CL ROI 100x100 pixel exposure time texp 6 ms e treadout tu CPRE Py 2 Rx HB RESET MODE 1 05 ms e treadout lt texp frame texp tu CPRE RESET MODE 6 01 ms e Frame rate 1 trame 166 fps Example 2 MV D640C 33 CL ROI 640x300 pixel exposure time texp 1 ms e treadout tu CPRE Py 2 Rx HB RESET MODE 6 19 ms treadout gt texp gt ttrame texp treadout 7 19 ms e Frame rate 1 trame 139 fps Example 3 MV D640C 48 U2 ROI 200x100 pixel exposure time texp 5 ms Intel supported chipset fast mode e tread
4. REV 2 0 Page 9 photon foc us Table 2 Camera parameters MV D640 User s Manual MV D640 66 CL 10 MV D640C 66 CL 10 MV D640 33 CL 10 MV D640C 33 CL 10 MV D640 48 U2 8 MV D640C 48 U2 8 Exposure time 50us 1 35 Exposure time 20 us 20 us 16 us 48 us step size Frame rate up to 200 fps up to 100 fps up to 129 fps up to 42 fps Min region of 4x1 pixels Width x height gt 1024 pixels interest ROI Grayscale 8 10 bit 8 bit resolution Digital gain X1 x2 x4 Analog gain X1 x8 up to x18 possible but not recommended Pixel clock 66 MHz 33 MHz 48 MHz fast USB 16 MHz fast USB frequency 24 MHz slow USB 8 MHz slow USB Pixel clock period 15 15 ns 30 30 ns 20 83 ns fast USB 62 5 ns fast USB 41 67 ns slow USB 125 ns slow USB Camera taps 1 Note The maximum frame rate depends on the configuration and the USB chipset on the PC For more information regarding the fast and slow USB mode please refer to Section 4 8 2 Table 3 Physical characteristics and operating ranges MV D640 66 CL 10 MV D640 33 CL 10 MV D640 48 U2 8 MV D640C 48 U2 8 MV D640C 66 CL 10 MV D640C 33 CL 10 Operating 0 C 60 2C temperature Camera power 5V DC 41096 5 12V DC 10 supply Trigger signal T5 15V DC input range Strobe signal 5 15V DC power supply Stro
5. 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 compressed air spray to blow off loose particles This step alone is usually sufficient to clean the sensor of the most common contaminants Warning Workshop air supply is not appropriate and may cause permanent damage to the sensor 3 If further cleaning is requried use a suitable lens wiper or Q Tip moistened with an appropriate cleaning fluid to wipe the sensor surface as described below Cleaning materials must be ESD safe lint free and free from particles that may scratch the sensor surface For cleaning the sensor Photonfocus recommends the products available from the suppliers as listed in Table 15 Warning 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
6. 113 fea 101011110 2 135 11 1 52 per 111110111 4 Bic poiiio001i 116 b51 ooo0101i 22 p110101100 54 prc poiiiiiioi 86 071 1000111000 18 147 1110001010 25 per p1i1110101 557 Bei 1000011111 89 389 001000111 121 235 1011110001 26 hzc 0011111010 58 pcs 1100001111 po Bis 100100011 22 p7A 101111000 hr3 100111110 60 Bor 111000011 92 bae jo111001000 124 jeo 1001011110 29 bes 110011111 p c 011100001 b3 90 111 125 02 100101111 Bo Bcc po1100 11 e2 038 001110000 94 138 1101110010 126 pas 1910010111 HEX Hexadecimal value BIN Binary value Bit sequence bits 0 7 REV 2 0 Page 40 photon focus MV D640 User s Manual Table 22 cont States 128 255 of the pseudo random number generator Mr HEX BIN wr HEXBIN IN HEXBIN IN HEXBIN HEX Hexadecimal value BIN Binary value Bit sequence bits 0 7 REV 2 0 Page 41 MV D640 User s Manual REV 2 0 Page 42 photon focus Figure 23 Acquired image with activated 10 bit LFSR VHDL Code Example 10 bit LFSR signal REG STD LOGIC VECTOR 9 downto 0 signal DATAIN STD LOGIC SR10R process ICLK 10 bit LFSR begin if ICLK event and ICLK 1 then if RESET 1 then at reset init shift register to 1 REG 0000000001 else REG lt REG 8 downto 0 amp DATAIN end if end if end p
7. 46 2 ms slow USB mode 4 2 Pixel Response 4 2 1 Linear Response Normally the camera offers a linear response between input light signal and output gray level In addition a linear analog or digital gain may be applied 4 2 2 Analog Gain The MV D640 camera series offer an analog on chip gain between x1 and x18 in steps of 1 For the color model the four color channels red green1 blue green2 can be adjusted independently I mportant Using a high analog gain will degrade the image quality Although it is possible to configure analog gain up to x18 we strongly recommend using a lower gain than gain x8 REV 2 0 Page 14 photon focus MV D640 User s Manual 4 2 3 Digital Gain Gain x2 and x4 is a digital amplification which means that the digital image data are multiplied by a factor 2 or 4 respectively in the camera 4 3 Bayer Color Pattern The MV D640 color model is equipped with a Bayer color pattern A full RGB signal can be calculated using a Bayer algorithm For the CameraLink models this is performed by the frame grabber For the USB2 0 model the Bayer algorithm is performed in the camera 0 0 Bottom left corner of sensor arrray Figure 3 Bayer pattern example Note When using a region of interest the start point for the Bayer decoder depends on the start point of the ROI Note For the MV D640C 66 CL model the start point of the Bayer decoder must be reconfigured when switching be
8. Bus and is a bus system developed in 1995 by a consortium of leading companies in the computer industry in cooperation with Intel The USB 1 1 specification defined a port speed to be 12 MBit s the USB 2 0 specification a remarkable 480 MBit s However not every PC with an USB 2 0 interface can be used in the fast mode to reach a maximum speed of data transfer 24 MByte s or 48 MByte s Depending on the available USB chipset on the PC it is possible that only a data rate of 24 MByte s can be achieved Note The maximum speed of the USB interface 24 MByte s or 48 MByte s is determined by the USB driver automatically and cannot be configured Software requirements To reach the full performance of 48 MByte s Windows XP with Service Pack 2 is required For Windows 2000 and Windows XP with Service Pack 1 the camera will run with 24 Mbyte s only Note The camera can only be operated with the software MicroDisplay USB to grab images together with PFRemote to control the camera Alternatively the frame grabber module USB SDK and the PFLib SDK can be used Other software is not supported REV 2 0 Page 21 photon focus MV D640 User s Manual Attention The camera firmware which is essential for the operation of the camera is automatically transmitted to the camera via USB during the start up of the MicroDisplay USB software Therefore the camera must always be connected to the USB port during start up otherwise the camera will not b
9. CameraLink connector which is defined by the CameraLink standard as a 26 pin 0 5 Mini D Ribbon MDR connector to transmit configuration image data and trigger The CameraLink interface and connector are specified in CL For further details including the pinout please refer to Chapter 8 This connector is used to transmit configuration image data and trigger signals 5 1 2 USB2 0 Connector The USB 2 0 camera model is interfaced to external components via USB 2 0 B Type connector see Figure 9 3 Figure 9 USB 2 0 Type B connector 5 1 3 Power Supply The camera requires a single voltage input see Table 3 The camera meets all performance specifications using standard switching power supplies although well regulated linear power supplies provide optimum performance Warning t is extremely important that you apply the appropriate voltage to your camera Incorrect voltage will damage the camera Important For US and Canada Ensure a UL listed power supply is used A suitable UL listed power supply is available from Photonfocus For further details including the pinout please refer to Section 8 5 1 4 Trigger and Strobe Signals for USB2 0 models The power connector contains an external trigger input and a strobe output Warning The input voltage to the TRIGGER pin must not exceed 15V DC to avoid damage of the optocoupler REV 2 0 Page 23 photon focus MV D640 User s Manual In order to use the strobe the
10. USB2 0 36 8 2 CameraLink Connector 0 cece ee ee eese esse nenne nens 36 8 3 USB2 0 CORFIGCEOF e ten Fee ta a RU 37 9 Troubleshooting iin eoim c exuded ad e ex e ida ene Ee XR eet aud Da SERE 38 9 1 Common pitfalls with microDisplay USB and 38 utcichscme 39 11Appendix A Pseudo random number generator sss 40 12 Appendix B Adjusting the Black Level Offset with PFRemote 65 43 13 Appendix C CE Compliance Statement 0 ccc cece memes eme 44 14Appendix D Revision History ssssssssssssse III Hh hehehe renes 45 REV 2 0 Page 4 photon focus MV D640 User s Manual 1 Preface 1 1 About Photonfocus The Swiss company Photonfocus is one of the leading specialists in the development of CMOS image sensors and 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 de
11. 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 LP Delay after the first line and after every following line except the last when reading out the image data LP Rx Px HB Px image width LP F First line pause in an FVAL period 2 Rx HB 16 LP L Last line pause in an FVAL period LP L 13 HP CPRE Constant delay between end of exposure time and beginning of read out RESET Constant delay between end of read out and earliest begin of a new exposure Compare with Section 4 5 3 I nterleaved Mode If the read out time is smaller than the exposure time the sensor is automatically operated in interleaved mode which means that during the exposure of the next image the last image is read out Then the sensor is reset and 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 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 Figure 13 visualises the timing behaviour of the control and data signals in the interleaved mode REV 2 0 Page 27 photon focus MV
12. exposure time In the free running mode the step in the curve indicates the switching between non interleaved and interleaved mode REV 2 0 Page 18 photon foc us MV D640 User s Manual CameraLink Models MV D640 C 33 CL 200 K 180 160 140 Z A free running 66 model external trigger 66 model Q free running 33 model external trigger 33 model T 2 S 120 E o 1004 5 80 amp s 60 40 20 0 0 0 10 0 20 0 30 0 40 0 50 0 60 0 Exposure time ms Figure 5 Frame rate of MV D640 66 camera in free running and external trigger mode USB Models MV D640C 48 U2 MV D640 48 U2 140 free running mono model 120 K external trigger mono model w 100 A lt free running color model Q 2 4 external trigger color model 80 o E S 60 rm x An 40 TK 20 0 0 0 10 0 20 0 30 0 40 0 50 0 60 0 Exposure time ms Figure 6 Frame rate of the USB2 0 models in free running and external trigger mode REV 2 0 Page 19 photon focus MV D640 User s Manual 4 6 3 Strobe Output When using a CameraLink model the strobe output must be provided by the frame grabber For the USB models there is an opto isolated strobe output on the power supply connector available Note The strobe output needs a separate power supply due to the opto coupled output Please see Sec
13. 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 10 to STROBE VDD 5 15 V DC as shown in Figure 10 This resistor should be located directly at the signal receiver Vtrigger 5 15 V DC TRIGGER Vstrobe 5 15V DC STROBE VDD Ir STROBE Pin 5 sinacrouo feinz Figure 10 Circuit for the Trigger Shutter signals USB Caution 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 Table 10 Pull up resistor for the strobe output STROBE_VDD Pull up Resistor 15V gt 3 9 kOhm 10V gt 2 7 kOhm 8 V gt 2 2 kOhm 7V gt 1 8 kOhm 5V gt 1 0 kOhm 5 1 5 Status Indicator for CameraLink Models A dual color LED on the back of the camera gives information about the current status 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 REV 2 0 Page 24 photon focus MV D640 User s Manual 5 1 6 Status Indicator for USB2 0 Models Two dual color LEDs on the back of the camera give information about the current ca
14. serial cable from the frame grabber to the serial interface of the PC REV 2 0 Page 20 photon focus MV D640 User s Manual Image data FVAL LVAL DVAL Pixel Clock CL ese QC sort trac Figure 8 CameraLink serial interface for camera communication CameraLink CameraLink To interface different cameras to different frame grabbers the CameraLink standard defines a software API It defines how the functions to initialise read from write to and close the serial interface should look The code behind these functions is frame grabber specific and is written by the frame grabber manufacturer The functions are then compiled into a DLL called clserXXX dll where XXX is a unique identifier for the frame grabber manufacturer The PFRemote camera configuration tool as well as the PFLib API use the serial interface to communicate with the camera and to control its functions The serial interface is accessed via the clserXXX dl Therefore the appropriate clserXXX dl for the frame grabber manufacturer needs to be in the same directory as the PFRemote executable e g C Program Files PhotonfocusPFRemote This DLL is usually located in the windows system32 directory after installing the frame grabber driver The serial configuration parameters are defined in the CameraLink standard and are as follows 9600 baud 1 start bit 1 stop bit no parity no handshaking 4 8 2 USB 2 0 Interface The abbreviation USB stands for Universal Serial
15. the black globe top material if present surrounding the optically active surface during the cleaning process REV 2 0 Page 32 photon focus MV D640 User s Manual Table 15 Recommended materials for sensor cleaning Product Supplier Remark Anticon Gold 9 x 9 Wiper Milliken ESD safe and suitable for class 100 environments TX4025 Wiper Texwipe Transplex Swab Texwipe Small Q Tips SWABS Q Tips Hans J Michael GmbH BB 003 Germany Large Q Tips SWABS Q Tips Hans J Michael GmbH CA 003 Germany Point Slim HUBY 340 Q Tips Sharp Methanol Fluid Johnson Matthey GmbH Semiconductor Grade Germany 99 9 96 min Assay Merck 12 6024 UN1230 slightly flammable and poisonous 2 Propanol Iso Propanol Fluid Johnson Matthey GmbH Semiconductor Grade Germany 99 5 96 min Assay Merck 12 5227 UN1219 slightly flammable REV 2 0 Page 33 photon focus MV D640 User s Manual 7 Warranty The manufacturer alone reserves the right to recognize warranty claims 7 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 de
16. Canada Ensure a UL listed power supply is used Download the PFI nstaller from the Photonfocus website and install the software Run PFInstaller exe Follow the instructions of the installer and choose Any Photonfocus USB camera Important During the installation the camera must not be connected to the USB port Connect the delivered power supply to the camera Caution Check the correct power supply voltage and polarity Do not exceed the maximum operating voltage of 12V DC 10 for the USB2 0 model Connect the camera to your computer with a USB2 0 cable Let Windows install the driver Windows should display the New Hardware found wizard automatically If this wizard is not displayed please continue as described under Manual Driver Installation below Let the Hardware assistant install the drivers It is not necessary to allow the search for current and updated software on the Internet Proceed by choosing the option Install the software automatically Recommended Another Hardware Installation message will appear which can be ignored Continue Anyway Note The procedure described here applies to Windows XP SP2 Start the software microDisplay USB If you are not familiar with the microDisplay USB software please read the manual MANO25 before acquiring images I mportant Always start the software microDisplay USB in the first step and proceed to start the camera software PFRemote in the second step Thi
17. D640 User s Manual PCLK Exposure Time I SHUTTER image n image n 1 CPRE RESET Frame Time FVAL pe image n 1 I I LP_F LP LP_L LVAL ee First Line Last Line DVAL Figure 13 Timing Diagram frame read out in free running interleaved mode 5 3 2 External Trigger Mode In the external trigger mode the exposure is defined by the camera and is configurable by software For an active high trigger signal the image acquisition begins with the rising edge of the trigger signal The image is read out after the pre configured exposure time After the readout the sensor returns to the reset state and the camera waits for a new trigger pulse see Figure 14 Note In external trigger mode the camera is always operated in non interleaved mode The data is output on the rising edge of the pixel clock the handshaking signals FRAME_VALID FVAL and LINE_VALID LVAL mask valid image information The signal SHUTTER in Figure 14 indicates the active integration phase of the sensor and is shown for clarity only REV 2 0 Page 28 MV D640 User s Manual photon foc us PCLK EXSYNC I M r 3 Min Frame Time SHUTTER Exposure Time LI CPRE RESET FVAL i L y tk I I LP F LP LP L LVAL LJ 1 First Line Last Line DVAL DATA LLLI Figure 14 Timing d
18. SB Implementers Forum www usb org The USB connector is used to transmit configuration signals and image data The pinout complies with the standard USB pinout and is listed here for the sake of completeness 1 2 A 4 3 Figure 22 USB Type B connector front view Table 21 Pinout USB connector Pin 10 Name Description 1 PWR VBUS 5V power supply 2 1 0 DATA Negative Data 3 1 O DATA Positivie Data 4 PWR GND Ground REV 2 0 Page 37 photon focus MV D640 User s Manual 9 Troubleshooting 9 1 Common pitfalls with microDisplay USB and PFRemote Message mEnable not found appears after microDisplay USB was started The USB driver is not installed correctly Try reinstalling PFInstaller When the camera is connected to the USB bus and powered on check if there is a Multifunction adapter with the entry Silicon Software GmbH microUSB2 in the Windows device manager Reinstall the driver manually It is located in Photonfocus microDisplayUSB driver PFRemote cannot communicate microDisplay USB must always be started before PFRemote because it downloads the USB firmware to the camera No image is output Check if the camera is outputting images check if the lower LED is green see Section 5 1 5 and 5 1 6 Maybe the camera is in external trigger mode and does not receive a trigger signal The camera USB interface or power supply has been disconnected since the last start of microDi
19. be signal sink max 8mA current average Power 1 7 W 1 5 W 3 3W consumption Lens mount C mount Dimensions 55 x 55 x 37 mm 55 x 55 x 48 mm Mass 200 g 200 g Conformity CE UL Note For US and Canada Ensure an UL listed power supply marked Class 2 is used and rated 5V DC min 400mA or 12V DC min 400mA respectively A suitable UL listed power supply is available from Photonfocus Ensure the device downstream of the camera data path eg PC is UL listed also REV 2 0 Page 10 photon focus MV D640 User s Manual S 2 c a LT ul E E e 5 o Wavelength nm Monochrome Blue A Green B g gt Y E S amp E 3 E 3 o Wavelength nm Color Figure 1 Quantum efficiency as function of wavelength REV 2 0 Page 11 photon focus MV D640 User s Manual 3 3 Frame grabber relevant Configuration CameraLink models only Table 4 Summary of parameters needed for frame grabber configuration MV D640 C 66 CL 10 MV D640 C 33 CL 10 Pixel clock per tap 66 MHz 33 MHz EXSYNC CC2 CC3 CC4 Camera port and bit assignments are compliant to the CameraLink standard Table 5 CameraLink port and bit assignment for MV D640 CameraLink series Data Bit Tap 0 8 bit Tap 0 10 bit 0 LSB AO AO 1 Al Al 2 A2 A2 3 A3 A3 4 A4 A4 5 A5 A5 6 A6 A6 7 MSB for 8 bit mode A7 A7 8 BO 9 MSB
20. camera and frame grabber a 10 bit LFSR with many to one feedback structure was implemented An XOR feedback of taps 2 and 9 was implemented for the maximum sequence length of 1023 states The state 0 does not exist in this implementation The sequence starts with the value 1 at the beginning of each line The first 256 values are presented in Table 22 A resulting pattern of vertical stripes can be seen in the acquired image see Figure 23 Table 22 States 0 127 of the pseudo random number generator Nr Hex BIN JN HEX BIN jw HEX BIN HEX BIN b o1 1000000000 2 31 1000110011 64 0000011100 foe 0011011100 2 oa 010000000 54 1110001100 s6 Bso 000000111 98 2 100110111 5 o9 1001000000 5 fer 1111000110 67 301 000000011 po 365 1010012011 a 12 100100000 B6 Bir 1111100011 68 pos 100000001 fioo eca o101001101 5 024 jo10010000 37 pst 111110001 6 por 110000000 for 95 po10100110 b o49 001001000 58 jc po11 11000 7 jor 111000000 102 28 1101010011 B 24 foor0010010 ho 182 100111110 r2 p3r 111110000 104 pae 111010100 o 49 001001001 1 bea po10011111 73 7r 1111111000 fios psp 1011102010 12 p4D 011001001 44 23 p100010011 76 prr himi 108 per 1111022101 l4 134 jo10110010 46 jose 111000100 78 Brc poiiiiiiii 110 beo 11119111 1e o3 1100101100 8 238 pi0 110001 80 pri 000111111 112 prs 010111101 17 has p110010110 49 077 p110111000 b1 BE3 100011111
21. duction The MV D640 camera series from Photonfocus is aimed at demanding applications in industrial image processing The cameras offer a high dynamic range of up to 60 dB with a resolution of 640x480 pixels and a full frame rate of up to 200 frames per second The principal advantages are e Superior color rendition e Exceptional linear response curve e Superior SNR signal to noise ratio Low power consumption at high speeds e Resistance to blooming e Ideal for high speed applications Global shutter in combination with a selectable region of interest to increase speed e USB2 0 or CameraLink interface e Compact size 3 2 Technical Specification Table 1 Sensor parameters MV D640 Series Technology CMOS active pixel Scanning system progressive scan Shutter type global shutter Resolution 640 x 480 pixels Optical format diagonal 1 2 7 92 mm Pixel size 9 9 um x 9 9 um Active optical area 6 34 mm x 4 75 mm Random Noise lt 0 59 DN RMS 630 nm 8 bit gain 1 Fixed Pattern Noise lt 1 5 DN RMS 630 nm 8 bit gain 1 Full well capacity 90 ke Spectral range 400 nm 1000 nm Responsivity 480 x 10 DN J m 630 nm 8 bit gain 1 Optical fill factor 50 96 Dynamic range 60 dB Color format monochrome color Bayer pattern Characteristic curve linear Shutter mode global Read out mode sequential or interleaved automatically determined
22. e functional Hardware requirements To reach the full performance of 48 Mbyte s isochronous mode a PC Mainboard with Intel chipsets is required and the Southbridge must support ICH4 ICH5 or higher The camera must be connected to a USB port that is provided by the Southbridge of the PC and not by an additional USB2 0 host adapter More information about the Southbridge is available in the motherboard manual of your PC A list of Intel chip sets is available at www intel com products chipsets index htm Note Intel provides the tool chiputil exe to determine the chip set being used on a PC It can be downloaded from ftp aiedownload intel com df support 7355 eng chiputil exe Alternative link http downloadfinder intel com scripts df support_intel asp search for chiputil Note The camera is optimised for high data transfer and other USB devices may stop functioning or perform poorly Note Additional USB 2 0 host adapters may only transfer up to 24 Mbyte s because they are not directly connected to the Southbridge and therefore do not support the isochronous mode The data transfer mode of the camera 48 MByte s or 24 MByte s is indicated by the upper LED on the back of the camera see Section 5 1 5 or in the Info tab of PFRemote REV 2 0 Page 22 photon focus MV D640 User s Manual 5 Hardware Interface 5 1 Connectors 5 1 1 CameraLink Connector The CameraLink cameras are interfaced to external components via a
23. e readout of the image information begins again 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 Figure 12 visualises the timing behaviour of the control and data signals in the non interleaved mode PCLK Frame Time SHUTTER Exposure Time H CPRE RESET FVAL i 1 1 I I I LP F LP LP L E M First Line Last Line DVAL Figure 12 Timing Diagram frame read out in free running non interleaved mode REV 2 0 Page 26 photon focus MV D640 User s Manual Table 12 Explanation of control and data signals used in the timing diagram Frame time Maximum frame time is defined as exposure time plus data read out time Exposure time Period during which the pixels are integrating the incoming light PCLK Pixel clock on CameraLink interface SHUTTER Internal signal shown only for clarity Is high during the exposure time during which the pixels integrate the incoming light and the image is acquired FVAL Frame Valid Is high while the data of one whole 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
24. er the image 9 To save the current settings including the new black level offset in the camera use the Store in EEPROM button Warning The factory calibration settings will be overwritten SETELIT x Pet TIENI sol um entes Teggering Fine Running C Ertem Syre J Store n EEPROM wePwe H Lise xposueTee n 1 io P histograman Port A Pieture 53408 127 0 000 amp 0j 128 0000 X 0 129 0000 0 130 0000 0 131 0000 x 01 132 0 000 0 133 0000 X 0 134 0000 0 135 0 000 0 1 0 000 5 01 The segistes conte refers to the active selected cameral Figure 24 Screenshot to adjusting the black level offset REV 2 0 Page 43 photon focus MV D640 User s Manual 13 Appendix C CE Compliance Statement REV 2 0 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 D1024x128 28 CL 10 MV D1024x128 80 CL 8 MV D1024x128 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 10 MV D640C 33 CL 10 MV D640C 66 CL 10 MV D640C 48 U2 10 HURRICANE 40 THUNDER 90 BLIZZARD 60 CameraLink Models HURRICANE 40 THUNDER 90 USB2 0 Models Digipeater CLB26 are in compliance with the below mentioned
25. fects 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 7 2 Warranty Claim The above warranty does not apply to any product that has been opened modified or altered by any party other 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 REV 2 0 Page 34 photon focus MV D640 User s Manual 8 Pinouts 8 1 Power Supply The power supply plugs are available from Binder connectors at www binder connector de Warning t is extremely important that you apply the appropriate voltages to your camera Incorrect voltages will damage or destroy the camera Important For US and Canada Ensure a UL listed power supply is used A suitable UL listed power supply is available from Photonfocus Figure 18 Power connector assembly 8 1 1 Power Supply Connector for CameraLink Model Figure 19 Power supply plug for CameraLink model rear view of plug solder side Table 16 Pinout of the power supply connector CameraLink model PIN Name Description 1 PW VDD 5 V voltage supply 2 PW GND Ground 3 PW VDD2 Reserved REV 2 0 Page 35 photon focus MV D640 User s Manual Table 17 Power supply connectors B
26. for 10 bit mode Bl REV 2 0 Page 12 photon focus MV D640 User s Manual 4 Functionality This chapter serves as an overview of the camera configuration modes and explains camera features 4 1 Image Acquisition 4 1 1 Free running and Trigger Mode By default the camera continuously delivers images as fast as possible Free running mode When the acquisition of an image needs to be synchronised to an external event an external trigger can be used refer to Sections 4 6 and 5 1 4 In this mode the camera is idle until it receives a signal to capture an image 4 1 2 Exposure Control The exposure time defines the period during which the image sensor integrates the incoming light Refer to Table 2 for the allowed exposure time range and see Section 5 2 4 1 3 Maximum Frame Rate The maximum frame rate depends on the exposure time and the size of the image Region of Interest ROI see Section 4 5 Depending on the exposure time and ROI size the sensor is configured automatically in interleaved or non interleaved mode see Sections 4 1 4 and 4 5 4 1 4 Sensor Read out Mode For an exposure time smaller than the read out time the sensor is operated in non interleaved mode To further increase the frame rate the sensor is operated in interleaved mode when the exposure time is longer than the read out time Note The camera chooses the most advantageous mode interleaved non interleaved automatically
27. ght results in a higher frame rate 4 5 2 ROI Example Configurations The following tables show how the frame rate is increased by reducing the number of rows The tables give round numbers the actual maximum values could be slightly higher Table 7 Maximum image rates for the CameraLink models ROI MV D640 66 CL 10 MV D640 33 CL 10 texp 50 us MV D640C 66 CL 10 MV D640C 33 CL 10 640 x 480 200 fps 100 fps 640 x 240 390 fps 200 fps 640 x 120 770 fps 390 fps 640 x 60 1490 fps 760 fps 640 x 30 2660 fps 1420 fps REV 2 0 Page 16 photon foc us Table 8 Maximum image rates for the USB2 0 camera models MV D640 User s Manual ROI MV D640 48 U2 8 MV D640C 48 U2 8 texp 50 us Intel supported No Intel Intel supported No Intel chipset supported chipset chipset supported chipset fast mode slow mode fast mode slow mode 640 x 480 129 fps 64 fps 43 fps 20 fps 640 x 240 255 fps 128 fps 85 fps 40 fps 640 x 120 500 fps 250 fps 165 fps 85 fps 640 x 60 960 fps 490 fps 330 fps 165 fps 640 x 30 1780 fps 930 fps 630 fps 320 fps 4 5 3 Frame Rate Calculation Formula The frame rate depends on the exposure time and the ROI For the USB models the maximum frame rate also depends on the USB chipset of the PC Please refer to Section 4 8 2 for more information The frame rate can be calculated using the following formula treadout tu CPRE Py 2 Rx HB
28. he general mechanical data of the cameras are listed in Table 1 and Table 2 REV 2 0 Page 30 photon focus MV D640 User s Manual k Figure 15 CameraLin back plate Figure 16 USB 2 0 back plate Figure 17 CameraLink and USB front plate REV 2 0 Page 31 photon focus MV D640 User s Manual 6 3 Optical Interface 6 3 1 Mounting the Lens Remove the protective cap from the C CS mount thread of the camera and install the lens When removing the protective cap or changing the lens the camera should always be held with the opening facing downwards to prevent durst from falling into the CMOS sensor If the lens is removed the protective cap should be refitted If the camera is opened in a dusty environment we recommend the use of a constant stream of clean air in front of the objective 6 3 2 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 in the images 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
29. iagram for external trigger 5 3 3 Trigger Delay MV D640 CameraLink Models The total delay between the trigger edge and the camera exposure consists of the delay in the frame grabber and the camera For the delay in the frame grabber please ask your frame grabber manufacturer The camera delay consists of a constant trigger delay and a variable delay jitter Table 13 Maximum camera trigger delay CameraLink models Camera Model Trigger Delay t constant Max Trigger Jitter t MV D640 C 66 CL 15 ns 15 ns MV D640 C 33 CL 30 ns 30 ns MV D640 USB2 0 Models The delay between a trigger edge applied via the trigger pin on the power supply connector consists of a constant and a variable delay as shown in Table 15 Table 14 Maximum camera trigger delay USB2 0 models Camera Model Trigger Delay t constant Max Trigger Jitter t MV D640 48 U2 500 ns 250 ns MV D640C 48 U2 500 ns 250 ns REV 2 0 Page 29 photon focus MV D640 User s Manual 6 Mechanical and Optical Considerations 6 1 Transport 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 to local regulations 6 2 Mechanical I nterface T
30. inder subminiatur series 712 Connector Type Order Nr 3 pole plastic 99 0405 00 03 3 pole metal 99 0405 10 03 8 1 2 Power Supply Connector for USB2 0 Model Figure 20 Power supply plug for USB2 0 model rear view of plug solder side Table 18 Pinout of the power supply connector USB2 0 model PIN I O Name Description 1 PW VDD 12 V DC 4 10 power supply 2 PW GND Ground 3 PW NC NC 4 PW Shutter VDD 5 V DC 10 5 O Shutter Exposure Control optically insulated 6 Trigger External Trigger optically insulated 7 PW Ground Signal Ground Table 19 Power supply connectors Binder subminiatur series 712 Connector Type Order Nr 7 pole plastic 99 0421 00 07 7 pole metal 99 0421 10 07 8 2 CameraLink Connector The pinout for the CameraLink 26 pin 0 5 Mini D Ribbon MDR connector is compliant to the CameraLink standard CL and is listed here for reference only Figure 21 CameraLink connector 3M MDR 26 plug REV 2 0 Page 36 photon focus MV D640 User s Manual Table 20 Pin assignments for the CameraLink MDR26 socket Description O Negative LVDS Input Negative LVDS Input Shield Shield 8 3 USB2 0 Connector The USB 2 0 interface and connector were developed by a group of companies Intel Agere Systems NEC Hewlett Packard Philips etc which are now organized in the U
31. manding 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 01 31 Email sales photonfocus com Support Phone 41 55 451 01 37 Email support photonfocus com 1 3 Sales Offices Photonfocus products are available through an extensive international distribution network details of the distributor nearest to you can be found at www photonfocus com 1 4 Further information For further information on the products documentation and software updates please see our website www photonfocus com or contact our distributors Photonfocus reserves the right to make changes to its products and documentation without notice Photonfocus products are neither intended nor certified for use in life support systems or in other critical systems The use of Photonfocus products in such applications is prohibited Photonfocus and LinLog are trademarks of Photonfocus AG CameraLink is a registered mark of the Automated Imaging Association Product and company names mentioned herein are trademarks or trade names of their respective companies Reproduction of this manual in whole or in part by any means is pr
32. mera and USB status USB CONNECTOR O LED 1 O LED 2 Figure 11 Position of the status indicator LEDs Table 11 Description of the status indicator LEDs LED 1 Green Green when a physical USB connection is established LED 1 Red After the USB firmware was uploaded to the camera by microDisplay USB the camera is ready for data transfer The blinking frequency of the red LED indicates the current transfer mode In the slow mode 24 MByte s the blinking interval is 1 Hz in the fast mode 48 Mbyte s it is 4 Hz LED 2 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 2 Red Red indicates active serial communication with the camera 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 came
33. nnect the delivered power supply to the camera Caution Check the correct power supply voltage and polarity Do not exceed the maximum operating voltage of 5V DC 41096 5 for the CameraLink model Connect the camera to your frame grabber with a CameraLink cable Start the camera software PFRemote Double click on the communication port where you attached the camera Check the status LEDs on the rear side of the camera See Section 5 1 6 for more information You may now display images using the software provided by your frame grabber manufacturer REV 2 0 Page 6 photon focus MV D640 User s Manual 2 2 First Steps with a MV D640 USB2 0 Model 10 11 12 13 14 15 16 17 Remove the camera from its package Please make sure the following items are included with your camera 7 pole power supply plug Camera body cap If any items are missing or damaged please contact your dealership Check if your computer fulfils the hardware requirements See Section 4 8 2 for more information Remove the protective cap from the camera and mount a suitable lens Caution Protect the image sensor from particles and dust Remove the protective cap from the C mount thread of the sensor module and screw in the lens When removing the protective cap or changing the lens the camera should always be held with the opening facing downwards to prevent dust falling onto the CMOS sensor Note For US and
34. ohibited without prior permission having been obtained from Photonfocus AG Photonfocus cannot be held responsible for any technical or typographical errors REV 2 0 Page 5 photon focus MV D640 User s Manual 2 How to Get Started 2 1 First Steps with a MV D640 CameraLink Model 1 Remove the camera from its package Please make sure the following items are included with your camera 3 pole power supply plug Camera body cap If any items are missing or damaged please contact your dealership Install the frame grabber software Note Without installed frame grabber software the camera configuration tool PFRemote will not be able to communicate with the camera Please follow the instructions of the frame grabber supplier Remove the protective cap from the camera and mount a suitable lens Caution Protect the image sensor from particles and dust Remove the protective cap from the C mount thread of the sensor module and screw in the lens When removing the protective cap or changing the lens the camera should always be held with the opening facing downwards to prevent dust falling onto the CMOS sensor Note For US and Canada Ensure a UL listed power supply is used Download the PFInstaller from the Photonfocus website and install the software Run PFInstaller exe Follow the instructions of the installer and choose Any Camera Link compliant grabber Then follow the instructions described in the readme file Co
35. out tu CPRE Py 2 Rx HB RESET MODE 4 94 ms e treadout lt texp gt frame texp tu CPRE RESET MODE 5 05 ms e Frame rate 1 trame 198 fps Example 4 MV D640C 48 U2 ROI 200x100 pixel exposure time texp 5 ms no Intel supported chipset slow mode e treadout ty CPRE Py 2 Rx RESET MODE 9 88 ms treadout gt texp gt ttrame texp treadout 14 88 ms e Frame rate 1 trame 67 fps Note For a small ROI and small exposure time the actual frame rate may differ from this calculated value due to the minimum exposure step size as defined in Table 2 4 6 External Trigger and Strobe An external trigger is an event that starts an exposure If a trigger signal is applied to the camera during the exposure or read out time the trigger will be ignored 4 6 1 Trigger Source The MV D640 camera models with CameraLink interface are triggered over the 61 signal via frame grabber The MV D640 camera models with USB2 0 interface are triggered over a signal available on the power supply connector see Section 5 1 4 Note For the USB models both trigger and strobe must be configured in microDisplay See MANO025 for more information 4 6 2 Trigger Mode In external trigger mode the sensor is always operated in non interleaved mode compare to Section 4 5 Figure 5 and Figure 6 compare the maximum frame rate in free running and external trigger mode with increasing
36. photon focus User Manual MV D640 Series CMOS Area Scan Cameras g JA i NEN TAG NUT be f gt E WI TER T mr PHP oPIP o fo 171 r r PERFECT EYE MANO06 11 2005 V2 0 photon focus MV D640 User s Manual 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 REV 2 0 Page 2 photon focus MV D640 User s Manual Contents EMIT REED Im 5 1 1 About cece eee eee eee ene eee esses sse she ern essen nnn 5 Mera LT 5 1 3 Sales e epis bernie RR eie tse dx Rs 5 1 4 Further InforrmatiOn nn rn er at 5 2 How to Get Started ssssssssssssssssssssssssseee nene esses esee en nane nnn 6 2 1 First Steps with a MV D640 CameraLink Model sssssssss 6 2 2 First Steps with a MV D640 USB2 0 7 3 Product Specification c oor eer etc ER beide De pore eas Loeb aban Ses donde ead data pt ak 9 3 1 IntrodUctioDni ueasex co aiden cbr ce E BA re Rl x d ad 9 3 2 Technical Specification
37. r for USB2 0 Models ssssesessssm 25 5 2 CameraLink Data Interface e eee nene messes nnn 25 5 3 Read out Timing iiss ccc sags eis aa DRaa A E A 26 REV 2 0 Page 3 photon focus MV D640 User s Manual 5 3 1 Free Running Mode cece eee ee nemen ehe esee 26 5 3 2 External Trigger 28 5 3 3 Trigger Delay eterne exer mk Rr bea ee ex eh ee Re dr mU Rx eite i d 29 6 Mechanical and Optical 5 30 6 1 Mechanical Interface 0 0 eee een eese esse nnne nnne 30 6 2 Optical Interface iioi rie v E e NUR aed Decke d ed ela 32 6 2 1 Mounting the E6ns oe pete edie IP ee tee 32 6 2 2 Cleaning the Sensor cece eee eee emm mense ehe sene 32 EB VIMUS 34 1l Warranty Lerms eie aeu re R exa eR RAT 34 7 2 Warranty Claim 2 eer d oir dees 34 SEM m 35 8 1 Power Supply 35 8 1 1 Power Supply Connector for 8 35 8 1 2 Power Supply Connector for
38. ra For example the external trigger is provided by a CC signal see Table 4 for the CC assignment Pixel clock The pixel clock is generated on the camera and is provided to the frame grabber for synchronisation Serial communication A CameraLink camera can be controlled by the user via an RS232 compatible asynchronous serial interface This interface is contained within the CameraLink interface and is physically not directly accessible Refer to Section 4 8 1 for more information 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 Section 3 3 for a summarised table of frame grabber relevant specifications Figure 8 shows symbolically a 1 tap system For more information about taps refer to AN021 on our website on www photonfocus com REV 2 0 Page 25 photon focus MV D640 User s Manual 5 3 Read out Timing 5 3 1 Free Running Mode By default the camera is in free running mode and delivers images without any external control signals Depending on the exposure and read out time the sensor is operated either in interleaved or non interleaved mode Non I nterleaved Mode If the read out time exceeds the exposure time the sensor is automatically operated in non interleaved mode which means that the sensor is read out after the preset exposure time Then the sensor is reset a new exposure starts and th
39. rocess SR10R DATAIN lt REG 2 xor REG 9 LFSR OUT REG photon focus MV D640 User s Manual 12 Appendix B Adjusting the Black Level Offset with PFRemote 0 65 The black level offset the mean value of the image when the lens aperture is completely closed is calibrated by factory for Gain 2 default setting Changing the gain may need to adjust the black level offset with the following procedure 1 Close the aperture of the lens or close the lens opening of the camera with the camera body cap 2 n your frame grabber software display a histogram of the captured black image If there is no histogram available store the image and use a standard image manipulation tool 3 Open the camera in PFRemote 4 In the PFRemote main window go to the menu Camera and choose Registers In the appearing dialog box the camera registers can be written and read directly and without checking for errors All values that are entered here are hex values 5 Required registers for the black level offset Register OxOd Dark current compensation Register 0x17 Voff working point 6 Read registers OxOd and 0x17 by pressing the Reread all button and write down the value for later reference 7 Setregister OxOd to the value 0x02 8 Change register 0x17 in such a way that the low grey levels are not saturated black see Figure 24 The value range of register 0x17 is 0x00 to OxOf The larger the value in the register the bright
40. s is mandatory for proper operation of the camera because microDisplay USB downloads the USB firmware into the camera REV 2 0 Page 7 photon focus MV D640 User s Manual Each time the power supply or the USB cable have been disconnected you have to restart microDisplay USB in order to download the firmware again 18 Start the camera software PFRemote Double click on the communication port USBO 19 Check the status LEDs See Section 5 1 6 for more information 20 You may now display images using microDisplay USB Note The maximum frame rate depends on the USB chipset of the PC and on the camera parameters Manual driver installation If Windows did not automatically install the driver for your USB camera please proceed as follows Open the Device Manager in the Windows Control Panel e There will be an unknown device called Silicon Software microUSB2 e Right click on the unknown device and choose Update Driver e The Hardware update wizard will appear It is not necessary to allow the search for current and updated software on the Internet Click on No not this time and Next e Then choose Install the software automatically Recommended and proceed with Next When you get asked for the driver location specify Photonfocus microDisplayUSB driver Note This procedure applies to Windows XP SP2 REV 2 0 Page 8 photon focus MV D640 User s Manual 3 Product Specification 3 1 Intro
41. splay USB Restart microDisplay USB Due to the minimum data frame size that can be transferred by USB the minimum ROI must be at least 1024 bytes Choose an ROI of Width x Height gt 1024 pixels If there is already an earlier USB driver installed on your PC and you have problems installing the new PFinstaller please contact the Photonfocus support at support photonfocus com Camera clock on port A is inactive A wrong hardware applet was downloaded to the camera when starting microDisplay USB Always choose the correct camera model at the start of microDisplay USB The camera USB interface or power supply has been disconnected since the last start of microDisplay USB Restart microDisplay USB REV 2 0 Page 38 photon focus MV D640 User s Manual 10 References All referenced documents can be downloaded from our website at www photonfocus com CL CameraLink Specification January 2004 SWOO0O2 PFLib SDK Documentation Photonfocus August 2005 MANO25 microDisplay USB2 0 User Manual Photonfocus November 2005 ANOO7 Application Note Camera Acquisition Modes Photonfocus March 2004 ANO10 Application Note Camera Clock Concepts Photonfocus July 2004 ANO21 Application Note CameraLink Photonfocus July 2004 ANO26 Application Note LFSR Test Images Photonfocus September 2005 REV 2 0 Page 39 photon focus MV D640 User s Manual 11 Appendix A Pseudo random number generator In order to test the interface between
42. standards according to the provisions of European Standards Directives EN61000 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 October 2005 Page 44 photon focus MV D640 User s Manual 14 Appendix D Revision History Description of changes Date 1 0 First edition 06 03 2003 2 0 Completely revised version 16 12 2005 REV 2 0 Page 45
43. tion 5 1 4 for more information For the configuration see MANO25 4 7 Black Level Adjustment The black level offset the mean value of the image when the lens aperture is completely closed is calibrated by factory for Gain 2 default setting Changing the gain may need to adjust the black level offset with the following procedure 1 Close the aperture of the lens or close the lens opening of the camera with the camera body cap 2 n your frame grabber software display a histogram of the captured black image If there is no histogram available store the image and use a standard image manipulation tool 3 Open the camera in PFRemote 1 0 4 In the Special tab of PFRemote change the value of Black Level Offset until the histogram of the black image looks as in Figure 7 5 To save the current settings including the new black level offset in the camera use the Store as defaults button 0 127 255 Figure 7 Histogram for a correct black level Note For PFRemote version 0 65 refer to Chapter 12 4 8 Configuration Interface 4 8 1 CameraLink I nterface A CameraLink camera can be controlled by the user via an RS232 compatible asynchronous serial interface This interface is contained within the CameraLink interface as shown in Figure 8 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
44. tween the fast 66 MHz and slow 33 MHz mode 33 MHz mode Pixel 0 0 66 MHz mode Pixel 0 0 green red I mportant All Photonfocus color cameras are fitted with an IR UV blocking filter as standard equipment It is possible that depending on the illumination source this filter must be replaced by one corresponding to the illumination source in order to achieve an optimal image in difficult illumination environments e g halogen lamp with high red component 4 4 Test Image An LFSR Linear Feedback Shift Register test image outputs a constant pattern with a pseudo random gray level sequence containing every possible gray level that is repeated for every row Figure 23 Please refer to Chapter 11 for a detailed description of the LFSR pattern REV 2 0 Page 15 photon focus MV D640 User s Manual 4 5 Reduction of I mage Size 4 5 1 Region of I nterest Some applications do not need full image resolution 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 and height Figure 4 gives some possible configurations for a region of interest and Table 7 shows some numerical examples of how the frame rate can be increased by reducing the ROI a b c d Figure 4 ROI configuration examples Note Only the reduction in y direction image hei
45. without user intervention Interleaved mode integrates an image while reading out the last image see Figure 2 and does therefore increase the maximum frame rate Important n external trigger mode the camera will always be configured automatically in non interleaved mode REV 2 0 Page 13 MV D640 User s Manual photon focus Non interleaved mode Exposure time Read out time Exposure time Read out time Exposure time Read out time Ee gt I PBR Frame time Frame time Interleaved mode Exposure time Read out time Frame time Frame time Frame time Figure 2 Difference between interleaved and non interleaved mode Following table gives the exposure time at which the read out mode is switched for the full resolution of 640x480 pixels See Section 4 5 3 for the calculation of the frame rate Table 6 Switching of the read out mode for a full frame of 640x480 Exposure time Interleaved mode Non interleaved mode MV D640 C 66 CL 10 4 9 ms 2 4 91 ms MV D640 C 33 CL 10 9 8 ms 2 9 8 ms MV D640 48 U2 8 lt 7 8 ms fast USB mode gt 7 8 ms fast USB mode lt 15 6 ms slow USB mode gt 15 6 ms slow USB mode MV D640C 48 U2 8 23 1 ms fast USB mode 46 2 ms slow USB mode gt 23 1 ms fast USB mode gt
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