User Manual EL1-D1312 CameraLink®Camera
Contents
1. Figure 5 3 CameraLink interface system 26 Software 6 1 Introduction The following software is provided for the EL1 D1312 160 camera PF EL Suite PF EL Suite is a GUI configuration tool for the EL1 D1312 160 camera It allows to adjust parameters calibrate the camera and to grab and save images It is an easy way to get started with the EL1 D1312 160 camera The installation is described in Section 2 2 Fig 6 1 shows PF EL Suite in context with the underlying software and hardware A list of supported frame grabbers is shown on the Photonfocus webpage in the EL1 D1312 section PFELLibV2 The PFELLibV2 is a C C library to control the EL1 D1312 160 camera It allows the user to write applications for the EL1 D1312 160 camera A reference manual PFELLIBV2 and an example project with Microsoft Visual C are included in the installation The installation is described in Section 2 2 Fig 6 2 shows the user application in context with the underlying software and hardware PFGrab is a C C library that gives a common grabbing interface for Photonfocus cameras It supports several frame grabbers and simplifies the building of vision applications It is installed with the installation of PFRemote PFInstaller Processed Image Raw Image 1 Settings N Raw Image Figure 6 1 PF EL Suite in context with underlying software and hardware 27 6 Software t Processed Image Raw Ima2. 18 4 Functionality This chapter serves as an overview of the configuration modes and explain features of the Photonfocus EL System 4 1 Camera Operating Temperature The Photonfocus EL system is sensible to changes of the image sensor temperature The operation temperature is typically reached after about half an hour of camera operation It is necessary that the camera runs at least half an hour before calibrating the gt camera or grabbing images otherwise the image quality might not be optimal Maintain a stable ambient temperature during operation 4 2 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 raw image gets brighter or darker The Black Level Offset can be adjusted to an optimal value by setting the parameter PFEL_BLACK_LEVEL_OFFSET_AUTO_SET in the PFELLibV2 see also PFELLIBV2 or the Auto Set Black Level Offset button in the PF EL Suite see also Section 6 3 5 amp The Black Level Offset should be readjusted when the exposure time is modified lt gt This is an advanced feature and it is recommended to use the automatic setting A modification of the Black Level Offset is lost when the camera is pow S ered down or the camera port is closed in PFELLibV2 To prevent this the setting can be stored to non volatile memory by writing the parameter PFEL_BLACK_LEVEL_OFFSET_SAVE
3. EL1 D1312 160 uses a special sensor read out mode Therefore the internally used frame rate is considerably bigger than 1 framerate Exposure time Frame Rate fps 10 ms 8 fps 100 ms 4 8 fps 200 ms 3 2 fps 300 ms 2 4 fps 400 ms 1 9 fps 500 ms 1 6 fps 800 ms 1 1 fps 1600 ms 0 5 fps Table 4 1 Frame rate at different exposure times without infinite burst 4 6 Trigger and Infinite Burst The start of the exposure of the camera image sensor is controlled by the trigger The trigger can either be generated by the PF EL Suite and PFELLibV2 software free running trigger mode or by an external device interface and I O trigger modes The exposure in the EL1 D1312 160 camera starts with a delay after the trigger The delay is fixed to 10 26 ms when infinite burst is turned off parameter PFEL_INFINITE_BURST When infinite burst mode is turned on the delay varies between 10 26 ms and 20 52 ms The image quality of the EL1 D1312 160 camera can decrease considerably when the triggers are not applied with a fixed frequency The infinite burst mode improves the image quality 20 slightly in the case of a trigger with variable frequency but the maximal frame rate is reduced and the exposure delay is increased To have optimal image quality the trigger should be applied with a nearly con stant frequency 4 7 Configuration Interface CameraLink A CameraLink camera can be controlled by the user via a RS232
4. Figure 5 2 Circuit for the trigger input signals The maximum sink current of the STROBE pin is 8 mA Do not connect inductive A 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 24 STROBE_VDD Pull up Resistor 15V gt 3 9 kOhm 10V gt 2 7 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 The dual color LED on the back of the camera is always switched off in the EL1 D1312 160 camera to avoid interference with electroluminescence detection 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 2 for the CC assignment CC1 EXSYNC External Trig
5. 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 Clock 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 I 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 10 3 Pinout of the CameraLink c
6. N c j Figure 3 2 EL1 D1312 160 CMOS camera series with C mount lens 3 2 Feature Overview 15 3 Product Specification 3 3 Technical Specification Technical Parameters EL1 D1312 160 Camera Technology CMOS active pixel APS Scanning system Progressive scan Optical format diagonal 1 13 6 mm diagonal maximum resolution Resolution 1312 x 1081 pixels Pixel size 8 um x 8 um Dark current 0 65 fA pixel E 27 C Quantum Efficiency see Fig Optical fill factor gt 60 Dynamic range 60 dB Colour format Monochrome Characteristic curve Linear Greyscale resolution 12 bit Table 3 2 General specification of the EL1 D1312 160 camera EL1 D1312 160 Exposure Time 10 ms 1 68 s Exposure time increment 100 ns Frame rate Tint 400 ms 1 9 fps Pixel clock frequency 80 MHz Pixel clock cycle 12 5 ns Camera taps 2 Table 3 3 Model specific parameters 16 Camera power supply EL1 D1312 160 Camera 0 C 50 C Operating temperature Cs 12 V DC 4 E 10 Trigger signal input range Max power consumption 5 15 V DC lt 3 3 W Lens mount C Mount CS Mount optional Dimensions Mass 60 x 60 x 4 5 mm 265 y Conformity CE RoHS Table 3 4 Physical characteristics and operating ranges WEE Fig 3 3 shows the quantum efficiency and the responsivity of the A1312 CMOS se
7. compatible asynchronous serial interface This interface is contained within the CameraLink interface as shown in Fig 4 1Jand 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 Pixel Clock CameraLink CameraLink CC Signals gt Serial Interface Figure 4 1 CameraLink serial interface for camera communication 4 7 Configuration Interface CameraLink 21 4 Functionality 22 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 10 This connector is used to t
8. the Set Dark Reference button see Fig starts the setting of the dark current reference The duration depends on the exposure time and the number of dark reference images and can take several seconds The progress of the operation is shown in the progress bar 4 When the Black Reference has been set the dark current correction is enabled automatically The currently set dark current reference can be saved to a file by clicking on the Save Dark Ref button The camera s serial number is encoded in the file name therefore the dark reference of different cameras can be saved on the same computer A saved dark current reference can be loaded by clicking on the Load Dark Ref button To achieve the best image quality a new dark current reference should be calcu lated after the exposure time or the Black Level Offset has been modified Dark Ref Images 4 Set Dark Reference Save Dark Ref Load Dark Ref H H Figure 6 8 Dark current correction setting 6 3 8 Gaussian Blur A blurring filter using a 3x3 convolution kernel can be applied to image by enabling the Gaussian Blur checkbox It is recommended to disable Gaussian Blur 6 3 9 Contrast Enhancement Contrast Enhancement is implemented in the software by a histogram spreading algorithm and can be enable by a checkbox see Fig 6 9 Hist Low setting sets the lower limit of the histogram spreading so that the specified percentage of total number of dark pixels are set to bla
9. 4 3 Camera Calibration Dark Reference Image noise is reduced by a special sensor read out mode in the camera and a correction algorithm implemented in the PFELLibV2 A dark current reference image must be obtained at no illumination e g with lens aperture closed or closed lens opening before the correction is applied internally Section 6 3 7 describes the setting in the PF EL Suite In PFELLibV2 it can be set by the parameter PFEL_SET_DARK_CURRENT_REF see also PFELLIBV2 ce The dark current reference image must be set when the camera is at its operating temperature which is normally reached after at least half an hour of operation 19 4 Functionality Ce The dark current reference image must be set again when the exposure time is modified or the trigger frequency is modified The dark current reference image can be saved to a file and loaded from the CS filein PF EL Suite see Section 6 3 7 and in PFELLibV2 by setting the parameter PFEL_DARK_REF_IMG_CMND The file name is automatically generated and contains the serial number of the camera O If the dark reference has been stored in a file then it must be loaded every time the PF EL Suite or the PFELLIbV2 is initialized this is not done automatically 4 4 Exposure control The exposure time defines the period during which the image sensor integrates the incoming light Refer to Table 3 3 for the allowed exposure time range 4 5 Calculation of the maximum frame rate The
10. Image Grabbing Images are grabbed by clicking on the Start Grab button The resulting images are displayed in a separate grabbing window The frame rate and the image number are displayed in the status bar while grab bing 34 6 3 14 Factory Reset The factory reset sets all parameters to its factory defaults The EL specific settings are then applied again Normally there is no need to use this function 6 3 PF EL Suite Application 35 6 Software 36 Mechanical and Optical Considerations 7 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 7 1 1 EL1 D1312 160 camera with CameraLink Interface 60 N4 4x M4 4mm deep oe gt 1 32 UNCF o 44 8x M5 7mm deep 8x M5 7mm deep 8x M5 7mm deep Figure 7 1 Mechanical dimensions of the CameraLink model displayed without and with C Mount adapter Fig Shows the mechanical drawing of the camera housing for the EL1 D1312 160 CMOS camera The depth of the camera housing is 45 mm 37 7 Mechanical and Optical Considerations 7 2 Optical Interface 7 2 1 Cleaning the Sensor The sensor is part of the optical path and should be handle
11. PF EL Suite application Click on the Next button to continue ie Setup Photonfocus PF EL Software Select Components Which components should be installed Select the components you want to install clear the components you do not want to install Click Next when you are ready to continue PFELLib and PF EL Suite PFELLib and PF EL Suite PF EL Suite onl Figure 2 6 Photonfocus PF EL Installer select components 2 2 PF EL software installation 11 2 How to get started EL 7 Select the Start Menu Folder and click on the Next button to continue see Fig 2 7 ie Setup Photonfocus PF EL Software Select Start Menu Folder Where should Setup place the program s shortcuts Setup will create the program s shortcuts in the following Start Menu folder To continue click Next If you would like to select a different folder click Browse IPhotonfocusiPF EL Software C Don t create a Start Menu folder Figure 2 7 Photonfocus PF EL Installer select Start Menu Folder 8 Check the Add library directory to your system path checkbox and click on the Next button to continue see Fig 2 8 ie Setup Photonfocus PF EL Software ES Select Additional Tasks mm Which additional tasks should be performed e Select the additional tasks you would like Setup to perform while installing Photonfocus PF EL Software then click Next Figure 2 8 Photonfocus PF EL Installer system path 9 Click on t
12. at www binder connector de Fig 110 2 shows the power supply plug from the solder side The pin assignment of the power supply plug is given in Table It is extremely important that you apply the appropriate voltages to your camera Incorrect voltages will damage or destroy the camera Figure 10 1 Power connector assembly Connector Type Order Nr 7 pole plastic 99 0421 00 07 7 pole metal 99 0421 10 07 Table 10 1 Power supply connectors Binder subminiature series 712 45 10 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 7 2 3 4 5 6 7 Table 10 2 Power supply plug pin assignment 10 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 gt 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 10 3 CameraLink cable 3M MDR 26 plug both ends 46 PIN
13. be open for most functions Matrox Camera Port 0 Close Port Figure 6 4 Frame grabber selector and camera port setting 6 3 4 Exposure Time The exposure time is set in units of milliseconds see Fig 6 5 The applicable range is 10 1676 ms To apply the exposure time to the camera press the lt Enter gt key in the Exposure Time field Note that the camera port must be open to apply the exposure time and the duration of the command is various seconds gt To achieve the best image quality a new Black Reference should be set after the exposure time has been modified see Section 6 3 7 Exposure Time ms 400 Figure 6 5 Exposure Time setting 6 3 PF EL Suite Application 31 6 Software 6 3 5 Black Level Offset The black level offset of the camera can be set in the GUI see Fig 6 6 Press the lt Enter gt key in the Black Level Offset field to apply the setting to the camera Note that the camera port must be open to apply the setting The recommended way to set the black level offset is through the Auto Set Black Level Offset function No light must be applied to the camera prior to using the function The duration of the process can be several seconds The Auto Set Black Level Offset function is only available when grabbing The current black level offset value is stored in the non volatile memory of the camera when Save Dark Ref is clicked lt gt It is recommended to set a new black reference af
14. bited Photonfocus is a trademark and LinLog is a registered trademark of Photonfo amp 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 gt Reproduction of this manual in whole or in part by any means is prohibited without prior permission having been obtained from Photonfocus AG CS 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 lt gt Alerts and additional information A Attention critical warning DI Notification user guide How to get started EL 2 1 1 Installation and quick start Install a suitable frame grabber in your PC C ___ To find a compliant frame grabber please see the frame grabber compatibility list at www photonfocus com The PF EL Suite supports only a subset of compatible frame grabbers The list of er supported frame grabbers for PF EL Suite is displayed in the EL1 D1312 section at www photonfocus com Install the frame grabber software Q Without installed frame grabber software the PF EL Suite and the PFELLibV2 won t work Please follow the instructions of the frame grabber supplier Download the camera software PFRemote to your computer gt You ca
15. ck Hist High setting sets the higher limit of the histogram spreading so that the specified percentage of total number of bright pixels are set to white 6 3 10 Remove Outliers The Remove Outliers setting removes small artefacts from the image see Fig 6 10 It can be fine tuned by setting the Outliers MinDiff setting More artefacts are removed if the number is smaller Setting the number too small will remove fine lines in the image 6 3 PF EL Suite Application 33 6 Software W Enhance Contrast Hist Lows 0 5 Hist High 0 1 Figure 6 9 Contrast Enhancement settings W Remove Outliers Outliers MinDiFF 100 Figure 6 10 Remove Outliers settings 6 3 11 Image Saving The grabbed images can be saved to files The image format can be selected with radio buttons see Fig 8 bit BMP Images are saved in bitmap bmp format with a resolution of 8 bits 12 bit TIFF Images are saved in Tagged Image File Format TIFF with a resolution of 12 bits Clicking on the Save button opens a dialog to choose the file name and location After that the images are saved The number of images to save can be entered in the Number of images box The image number is appended to the file name of the images Image Saving fe 5 bit BMP 12 bit TIFF Number oF images 1 Save Figure 6 11 Image Saving buttons 6 3 12 Infinite Burst The Infinite Burst setting is an advanced setting that is explained in Section 4 6 6 3 13
16. cost performance ratio Usable resolution of 1312 x 1081 pixels e Good NIR response e High quantum efficiency e High pixel fill factor gt 60 Superior signal to noise ratio SNR e Greyscale resolution of 12 bit e PF EL Suite and PFELLibV2 software provided for setting and storage of camera parameters The software generates special control sequences for the image sensor and processes the image to reduce noise and enhance contrast e The camera has a digital CameraLink interface e The compact size of 60 x 60 x 45 mm makes the EL1 D1312 160 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 13 3 Product Specification Figure 3 1 Sample image of a solar cell exposure time 400 ms and cell supply current 8 A 14 3 2 Feature Overview EL1 D1312 160 Camera CameraLink base configuration PF EL Suite application and PFELLibV2 programming library CLSERIAL 9 600 baud or 57 600 baud user selectable Interface Trigger External opto isolated trigger input Greyscale resolution 12 bit Fixed ROI of 1312 x 1081pixels Camera and software is targeted at electroluminescence applications Characteristics Interfaces Camera Control Configuration Interface Trigger Modes Features Table 3 1 Feature overview see Chapter 4 for more information Y F Q 0 3 Y
17. d from Photonfocus directly www photonfocus com Please note that Photonfocus provides appropriate solutions for your advanced vision applications 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 7 11 12 13 14 N N DON 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 10 A Check the correct supply voltage and polarity Do not exceed the maximum operating voltage of 12V DC 10 Connect the power supply to the camera see Fig 2 2 DI The status LED on the rear of the camera is disabled to avoid interference with electroluminescence detection Continue with the Start the PF EL Suite application by clicking on Start gt Programs gt Photonfocus gt PF EL Software gt PF EL Suite The PF EL Suite is a GUI for the EL camera and is an easy way to obtain images and to adjust parameters see also Chapter 6 Select your framegrabber from the selection drop down list Enter the correct number for the Camera Port and click on the Select FG button EIN If your frame grabber does not appear on the drop down list ask the Photonfo cus support if there are any plans to support this frame grabber To find the correct Camera Port number open the PFRemote t
18. d 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 38 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 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 Workshop air supply is not appropriate and may cause permanent damage to the sensor 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 7 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 Wipe th
19. e Percentage of histogram used for the left Hist Low J lower limit of contrast enhancement icto Hi i Percentage of histogram used for the right Hi 0 higher limit of contrast enhancement Remove image artefacts Advance setting see manual Progress bar Status bar Figure 6 3 PF EL Suite GUI 30 Y Remove Outliers Outliers MinDiff Image Saving sbitBMP 12 bit TIFF Number of images 1 Save Y Infinite Burst Image Nr 47 Frame Rate 1 94 fps Parameter for remove outliers Image format selection for saving images Number of images to save Save image s Start stop image grabbing Camera factory reset Exit application 6 3 2 Quick Start See Section 2 1 how to quickly start grabbing electroluminescence images 6 3 3 Frame grabber selection and camera port The frame grabber must be initialized and the camera port be opened before the other functions of the EL Suite can be used 1 Select the frame grabber in the drop down list 2 Enter the correct camera port number in the Camera Port edit box see Fig 6 4 The camera port number can be seen in the port browser of the PFRemote ap Q plication However the PFRemote application must not be open while the PF EL Suite application is running 3 The button Select FG initializes the selected frame grabber and opens the specified camera port To close the camera port click on Close Port button The port must
20. e read the following License Agreement You must accept the terms of this agreement before continuing with the installation Photonfocus software license agreement This software is free of any license fees and can be redistributed freely as well PHOTONFOCUS makes no warranty that the provided software routines are 100 error free and is not liable to any damages that are caused by usage of the provided software associated third party DLLs or operating systems Note that this software should not be used in environments where reliability is vital Furthermore usage of this software is not permitted in military environment O do not accept the agreement Figure 2 4 Photonfocus PF EL Installer Photonfocus license agreement 10 5 Select the destination of the PF EL software and click on the Next button see Fig 2 5 It is recommended not to change the proposed setting ite Setup Photonfocus PF EL Software Select Destination Location Where should Photonfocus PF EL Software be installed O Setup will install Photonfocus PF EL Software into the following folder To continue click Next If you would like to select a different folder click Browse C Programme Photonfocus At least 3 1 MB of free disk space is required Figure 2 5 Photonfocus PF EL Installer select destination folder 6 Select which components you want to install see Fig 2 6 Select PF EL Suite only if you only want to install the
21. e 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 Iso Propanol Germany Table 7 1 Recommended materials for sensor cleaning Product Supplier Remark EAD400D Airduster Electrolube UK www electrolube com Anticon Gold 9 x 9 Wiper Milliken USA ESD safe and suitable for class 100 environments www milliken com TX4025 Wiper Texwipe www texwipe com Transplex Swab Texwipe Small Q Tips SWABS Q tips Hans J Michael GmbH www hjm 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 c
22. ge Settings Raw Image Figure 6 2 User application in context with underlying software and hardware 28 6 2 Operating System PF EL Suite and PFELLibV2 are available for Windows OS only 6 3 PFEL Suite Application 6 3 1 Starting the GUI The PF EL Suite can be started by double clicking on Start gt Programs gt Photonfocus gt PF EL Software gt PF EL Suite The GUI is shown in Fig 6 3 Buttons and parameters that are not available with current settings appear in grey amp The camera must be running at least for half an hour to grab images or to set the dark reference otherwise the image quality will not be optimal 6 2 Operating System 29 6 Software Frame grabber selector Trigger Selection Save dark reference to file Enable gaussian blur Enable contrast enhancement fi PF EL Suite Maok Camera Port Close Port Exposure Time ms Black Level Offset 100 Auto Set Black Level Offset Trigger Free running C Interface C To Set Dark Reference Dark Ref Images Save Dark Ref Load Dark Ref Gaussian Blur v Enhance Contrast Apply frame grabber selection Camera port number Camera port open close button Exposure time Black level offset Start automatic setting of black level offset no light should be applied to camera Number of images for dark reference Start to set new dark reference no light should be applied to camera Load dark reference from fil
23. ger May be generated either by the frame grabber itself software trigger or by an external event hardware trigger CC2 CTRL Control0 This signal is reserved for future purposes and is not used CC3 CTRLI CC4 CTRL2 Control2 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 2 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 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 7 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 Table 3 3 and 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 AN021 on the Photonfocus website 5 2 CameraLink Data Interface 25 5 Hardware Interface Image data FVAL LVAL DVAL Pixel Clock CameraLink CameraLink CC Signals Serial Interface
24. he Install button to start the installation 12 Product Specification 3 1 Introduction The Photonfocus EL system consists in the EL1 D1312 160 CMOS camera the PF EL Suite application and the PFELLibV2 C C library It is specially suited for the following applications Inline inspection in solar cell and solar module production e Electroluminescence or similar applications D1312 160 camera is only for applications that needs to detect electrolumines Use MV1 D1312 camera series for standard machine vision applications The EL1 cence and is not suitable for standard machine vision applications O The camera must be run with the PF EL Suite or PFELLibV2 software from Pho tonfocus and cannot be controlled with PFRemote application The EL1 D1312 160 CMOS camera is built around the monochrome A1312 CMOS image sensor from Photonfocus that provides a resolution of 1312 x 1082 pixels at a wide range of spectral sensitivity The raw images from the camera cannot be directly displayed by the frame grabber software but must firstly be processed by the Photonfocus PF EL Suite or PFELLibV2 software The Photonfocus EL system is tailored to the task of detecting electroluminescence e g in solar cell inspection A sample image is shown in Fig 3 1 The principal advantages are e Designed for electroluminescence application e g in inline solar cell inspection or solar module inspection It requires no cooling Excellent
25. icated 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 certified for use in life support systems or in other critical systems The use of Photonfocus products in such applications is prohi
26. leaning the sensor Photonfocus recommends the products available from the suppliers as listed in Table 7 1 D 7 2 Optical Interface Cleaning tools except chemicals can be purchased directly from Photonfocus www photonfocus com 39 7 Mechanical and Optical Considerations 7 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 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 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 December 2009 Figure 7 2 CE Compliance Statement 40 Warranty The manufacturer alone reserves the right to recogni
27. n find the latest version of PFRemote on the support page at www photonfocus com Install the camera software PFRemote Please follow the instructions of the PFinstaller setup wizard The EL1 D1312 160 CL camera cannot be controlled with PFRemote application S but through the PF EL Suite or the PFELLibV2 programming library The pflib library is used internally in the PF EL software Install the PF EL software by running the setup_PFEL_V2_x exe file see Section 2 2 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 Do not touch the sensor surface Protect the image sensor from particles and dirt gt The sensor has no cover glass therefore dust on the sensor surface may resemble to clusters or extended regions of dead pixel 2 How to get started EL Figure 2 1 Camera with protective cap and lens Choose a lens that is suitable for electroluminescence detection i e that covers lt gt the light spectrum from 1000 to 1200 nm NIR lens The quality of the lens is very important to get good image quality The recommended lenses are listed in the EL1 D1312 section at www photonfocus com 7 Connect the camera to the frame grabber with a suitable CameraLink cable see Fig 2 2 CameraLink cables can be purchase
28. nsor displayed as a function of wavelength For more information on photometric and radiometric measurements see the Photonfocus application notes ANO06 and ANO08 available in the support area of our website www photonfocus com 60 Responsivity 50 1200 40 1000 30 Quantum Efficiency 20 10 a o o Responsivity V J m2 Wavelength nm 900 1000 1100 Figure 3 3 Spectral response of the A1312 CMOS image sensor in the EL1 D1312 160 camera 3 3 Technical Specification 17 3 Product Specification 3 4 Frame Grabber relevant Configuration The parameters and settings which are essential to configure the frame grabber are shown in the following table gt The frame grabber image dimension must be set to 1312 x 1090 pixels EL1 D1312 160 Pixel Clock per Tap 80 MHz Number of Taps 2 Greyscale resolution 12 bit Line pause 18 clock cycles cc EXSYNC cc2 not used CC3 not used CC4 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 TableB 6 shows the tap configurations for the EL1 D1312 160 camera Bit Tap 0 Tap 1 0 LSB AO CO Al C1 A2 C2 A3 C3 A4 ca A5 c5 C6 C7 B4 B5 B6 11 MSB B3 B7 Table 3 6 CameraLink 2 Tap port and bit assignments for the EL1 D1312 160 camera
29. onnector 10 2 CameraLink Connector 47 10 Pinouts 48 11 Revision History Revision Date Changes 2 0 February 2010 Chapter 2 Spectral range for lens is 1000 1200 nm Chapter 2 corrected LED is disabled in EL1 D1312 160 Update for PFELLibV2 1 0 December 2009 First release 49
30. ool and locate your Q frame grabber in the port list The port number is specified at the end of every port entry separated by a comma Click on Start Grab button to start grabbing The camera must be running at least for half an hour to proceed to the next step otherwise the image quality will not be optimal Apply no light to the camera e g by putting a cap on the lens and click on Set Dark Reference Remove the lens cap The system is now ready to grab and display images It is very important in electroluminescence detection that there is absolutely no exposure to ambient light PF EL software installation Download the PF EL Installer from the Photonfocus website at www photonfocus com Run the setup_PFEL exe file Click on the Next button see Fig 2 3 Read the Photonfocus license agreement accept the agreement and click on the Next button see Fig 2 4 2 2 PF EL software installation 9 2 How to get started EL ie Setup Photonfocus PF EL Software Welcome to the Photonfocus PF EL Software Setup Wizard This will install Photonfocus PF EL Software Version 1 0 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 Photonfocus PF EL Installer start of installation ie Setup Photonfocus PF EL Software License Agreement Please read the following important information before continuing Pleas
31. photon focus User Manual EL1 D1312 CameraLink Camera CMOS Area Scan Electroluminescence Camera MANO45 02 2010 V2 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 About Photonfocus 0 1 2 Contacts so reo ada a 1 3 Sales Offices o a td ad ae a 1 5 Legend o o o ooo e 2 How to get started EL 2 1 Installation and quick start 2 2 PF EL software installation 3 Product Specification 3 1 Introductionl lt lt A O as oe Functionality 4 1 Camera Operating Temperature 4 2 Black Level Adjustment 4 3 Camera Calibration Dark Reference 4 4 Exposure control 4 5 Calculation of the maximum frame rate 4 6 Trigger and Infinite Burstl 4 7 Configuration Interface CameraLink 5 1 Connectors o ee 5 1 1 Cameralink Connector 5 1 2 Power Supply 5 1 3 Trigger and Strobe Signals 5 1 4 Status Indicator 5 2 Cameralink Data Interface 6 Software 6 1 Introduction 6 2 Operating System 6 3 PFEL S
32. ransmit 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 camera For further details including the pinout please refer to Appendix 10 23 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 A 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 5 15V DC STROBE_VDD
33. ter modifying the black level offset Black Level Offset 100 MEE Figure 6 6 Black Level Offset setting 6 3 6 Trigger The camera trigger can be set to the following values see Fig 6 7 Free running Free running trigger generated in the software Interface Trigger must be applied to the CC1 Exsync port of the camera see MAN041 for more information If no images are grabbed then the trigger frequency might be too high for the applied setting O Trigger must be applied to the I O trigger input on the power connector of the camera see MAN041 for more information If no images are grabbed then the trigger frequency might be too high for the applied setting Trigger Free running Interface C TO Figure 6 7 Trigger setting 6 3 7 Dark Current Correction To get good image quality it is important that a dark current reference has been set When the PF EL Suite is opened no dark current reference is set A dark reference can be applied either by loading it from a file if it has been stored previously or by running the following procedure Procedure to set a new dark current reference 32 1 Apply no light to the camera either by placing the camera in a dark box or by putting a lid on the camera lens 2 The Dark Ref Images entry specifies how many images are used to get the black current reference The bigger the number the better but the default value should be fine for most applications 3 Clicking on
34. uite Application 6 3 1 Starting the GUI 6 3 2 Quick Start 6 3 3 Frame grabber selection and camera por 6 3 4 Exposure Time 6 3 5 Black Level Offset 4 t CONTENTS CONTENTS 636 Iriggen 22 Sarah AAA 32 A ace EEE 32 6 3 8 Gaussian BIUH i ios a eac ia e ca ke A a a cae da 33 6 3 9 ContrastEnhancement ee 33 6 3 10 Remove Outliersi a 33 6 3 11 Image Saving lt s ss e sa sace ka maor aa E aC E D e a a a E 34 6 3 12 Intinite Burst tic sae ca aS a ia 34 6 3 13 Image Grabbing ee 34 6 3 14 Factory Reset o o 35 7 Mechanical and Optical Considerations 37 7 1 Mechanical Interfacel onen 37 7 1 1 EL1 D1312 160 camera with CameraLink Interface 37 MEN ANA AN 38 7 2 1 Cleaning the Sensor oo 38 RNA RS ee ea 40 8 Warranty 41 8 1 Warranty Terms a E RR AE E A E O O EE E 41 E A nee 41 9 References 43 10 Pinouts 45 10 1 Power Supply Connector e e a a 45 10 2 CameraLink Connector 2 2 22222 nn 46 11 Revision History 49 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 ded
35. ze warranty claims 8 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 8 2 Warranty Claim The above warranty does not apply to any product that has been modified or al A tered 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 41 8 Warranty 42 9 References All referenced documents can be downloaded from our website at www photonfocus com PFELLibV2 User Manual PFELLib API Documentation Photonfocus supplied with PFEL installer MAN041 MV1 D1312 Manual Photonfocus February 2010 AN021 Application Note CameraLink Photonfocus July 2004 43 9 References 44 10 Pinouts 10 1 Power Supply Connector The power supply plugs are available from Binder connectors
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