User Manual DS1-D1312 CameraLink®Series
Contents
1. a b Figure 4 19 Possible configuration of the region of interest with DS1 D1312 160 CMOS camera Any region of interest may NOT be placed outside of the center of the sensor Examples shown in Fig illustrate configurations of the ROI that are NOT allowed 4 5 Reduction of Image Size 29 4 Functionality ROI Dimension Standard DS1 D1312 40 DS1 D1312 80 DS1 D1312 160 288 x 1 minimum resolution 10245 fps 10863 fps not allowed ROI setting 1280 x 1024 SXGA 29 fps 58 fps 117 fps 1280 x 768 WXGA 78 fps 156 fps 800 x 600 SVGA 157 fps 310 fps 640 x 480 VGA 241 fps 472 fps 544 x 1 9615 fps 10498 fps 11022 fps 544 x 1082 63 fps 125 fps 249 fps 1312 x 544 54 fps 107 fps 214 fps 1312 x 256 114 fps 227 fps 445 fps 544 x 544 125 fps 248 fps 485 fps 1024 x 1024 36 fps 72 fps 145 fps 1312x 1 8116 fps 9537 fps 10468 fps Table 4 3 Frame rates of different ROI settings exposure time 10 us correction on and sequential readout mode a Figure 4 20 ROI configuration examples that are NOT allowed 4 5 2 ROI configuration In the DS1 D1312 camera series the following two restrictions have to be respected for the ROI configuration The minimum width w of the ROI is camera model dependent consisting of 288 pixel in the DS1 D1312 40 camera of 416 pixel in the DS1 D1312 80 camera and of 544 pixel in the DS1 D1312 80 camera2. Sequential readout Frame time is the sum of exposure time and readout time Exposure time of the next image can only start if the readout time of the current image is finished Simultaneous readout interleave The frame time is determined by the maximum of the exposure time or of the readout time which ever of both is the longer one Exposure time of the next image can start during the readout time of the current image Readout Mode DS1 D1312 Series Sequential readout available Simultaneous readout available Table 4 1 Readout mode of DS1 D1312 camera series The following figure illustrates the effect on the frame rate when using either the sequential readout mode or the simultaneous readout mode interleave exposure fps 1 readout time Frame rate f fps Simultaneous EN P readout mode EN f fps 1 exposure time A m Sequential Pe readout mode fcc fps 1 readout time exposure time exposure time lt readout time exposure time gt readout time A Exposure time exposure time readout time Figure 4 1 Frame rate in sequential readout mode and simultaneous readout mode Sequential readout mode For the calculation of the frame rate only a single formula applies frames per second equal to the invers of the sum of exposure time and readout time 17 4 Functionality Simultaneous readout mode exposure time readout time The frame rat
3. e The region of interest must overlap a minimum number of pixels centered to the left and to the right of the vertical middle line of the sensor ovl 30 For any camera model of the DS1 D1312 camera series the allowed ranges for the ROI settings can be deduced by the following formula Xmin max 0 656 ovl w Xmax min 656 ovl 1312 w where ovl is the overlap over the middle line and w is the width of the region of interest lt gt Any ROI settings in x direction exceeding the minimum ROI width must be mod ulo 32 DS1 D1312 40 DS1 D1312 80 DS1 D1312 160 ROI width w 288 1312 416 1312 544 1312 overlap ovl 144 208 272 width condition modulo 32 modulo 32 modulo 32 Table 4 4 Summary of the ROI configuration restrictions for the DS1 D1312 camera series indicating the minimum ROI width w and the required number of pixel overlap ovl over the sensor middle line The settings of the region of interest in x direction are restricted to modulo 32 see Table 4 5 amp There are no restrictions for the settings of the region of interest in y direction 4 5 3 Calculation of the maximum frame rate The frame rate mainly depends on the exposure time and readout time The frame rate is the inverse of the frame time fps gt tframe Calculation of the frame time sequential mode ltrame 2 texp tro Typical values of the readout time t are given i
4. This tab contains exposure time and ROI settings DS1 D1312 160 cl0 4 Serial 1291 Exposure Window Trigger Data Output Correction Info Reset Exposure Exposure time ms TJ 10 000 Store as Defaults Settings File Region of interest Ss ki r az xp lt j wa Factory Reset Lal Y j 1082 j in ET Frame Rate fps Set to max ROI Update Simultaneous readout Interleave Simultaneous readout Interleave Average Value Note For limitations of the simultaneous readout mode please refer to the manual pa Update Figure 7 2 DS1 D1312 160 exposure and window panel Exposure Exposure time ms Configure the exposure time in milliseconds Region of Interest The region of interest ROI is defined as a rectangle X Y W H where X X coordinate starting from 0 in the upper left corner Y Y coordinate starting from 0 in the upper left corner W Window width in steps of 32 pixel H Window height Set to max ROI Set Window to maximal ROI X 0 Y 0 W 1312 H 1082 CS Window width is only available in steps of 32 pixel Simultaneous readout Interleave The simultaneous readout mode allows higher frame rate Simultaneous readout Interleave Enable the simultaneous readout mode 52 7 1 2 Trigger This tab contains trigger and data output settings DS1 D1312 160 clO 4 Serial 1291 Exposure Window Trigger Data Output Corr
5. and Fig 4 19 show possible configurations for the region of interest and Table presents numerical examples of how the frame rate can be increased by reducing the ROI CS Both reductions in x and y direction result in a higher frame rate G The minimum width of the region of interest depends on the model of the DS1 D1312 camera series For more details please consult Table 4 4 and Table 4 5 amp The minimum width must be positioned symmetrically towards the vertical cen possible settings of the ROI for each camera model is given in Tab ter line of the sensor as shown in Fig Fig and Fig 4 19 A list of le 4 5 gt 144 Pixel Som ote gt 144 Pixel gt 144 Pixel modulo 32 Pixel u gt 144 Pixel modulo 32 Pixel a b Figure 4 17 Possible configuration of the region of interest for the DS1 D1312 40 CMOS camera EIN It is recommended to re adjust the settings of the shading correction each time a new region of interest is selected 28 gt 208 Pixel gt 208 Pixel modulo 32 Pixel e u gt e gt 208 Pixel gt 208 Pixel J modulo 32 Pixel a b Figure 4 18 Possible configuration of the region of interest with DS1 D1312 80 CMOS camera gt 272 pixel gt 272 pixeli modulo 32 pixel Sr a gt e gt 272 pixel gt 272 pixel modulo 32 pixel
6. area 10 48 mm x 8 64 mm maximum Random noise lt 0 3 DN O 8 bit Fixed pattern noise FPN 3 4 DN 8 bit correction OFF Fixed pattern noise FPN lt 1DN 8 bit correction ON 22 Dark current 0 65 fA pixel 27 C Full well capacity 100 ke Spectral range 320 nm to 1030 nm to 10 of peak responsivity Responsivity 210 x10 DN J m 625 nm 8 bit Quantum Efficiency gt 50 96 Optical fill factor gt 60 Dynamic range Up to 60 dB Colour format Monochrome Characteristic curve Linear Shutter mode Global shutter Greyscale resolution 10 bit 8 bit Exposure Time 10 us 0 41 S Table 3 2 General specification of the DS1 D1312 camera series Footnotes P Indicated values are typical values Indicated values are subject to confirmation DS1 D1312 40 DS1 D1312 80 DS1 D1312 160 Exposure Time 10 us 1 68s 10 us 0 84s 10 ys 0 425 Exposure time increment 100 ns 50 ns 25 ns Frame rate Tin 10 us 27 fps 54 fps 108 fps Pixel clock frequency 40 MHz 40 MHz 80 MHz Pixel clock cycle 25 ns 25 ns 12 5 ns Camera taps 1 2 2 Read out mode sequential or simultaneous Table 3 3 Model specific parameters Footnote 3 Maximum frame rate Q full resolution 3 3 Technical Specification 13 3 Product Specification DS1 D1312 40 DS1 D1312 80 DS1 D1312 160 Operating temperature 0 C 50 C Camera power supply 12 V DC 10 96 Trigger signa
7. by factory cannot be restored anymore 4 4 2 Offset Correction FPN Hot Pixels The offset correction is based on a black reference image which is taken at no illumination e g lens aperture completely closed The black reference image contains the fixed pattern noise of the sensor which can be subtracted from the live images in order to minimise the static noise Offset correction algorithm After configuring the camera with a black reference image the camera is ready to apply the offset correction Determine the average value of the black reference image Subtract the black reference image from the average value Mark pixels that have a grey level higher than 252 DN 10 bit as hot pixels Store the result in the camera as the offset correction matrix Gh ac During image acquisition subtract the correction matrix from the acquired image and interpolate the hot pixels see Section 4 4 2 4 4 Image Correction 23 4 Functionality gt af na a 212 s p Y picture alo a ls black reference offset correction image matrix Figure 4 11 Schematic presentation of the offset correction algorithm How to Obtain a Black Reference Image In order to improve the image quality the black reference image must meet certain demands Cg The detailed procedure to set the black reference image is described in Section 7 1 3 e The black reference image must be o
8. 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 prohibited 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 Cg Reproduction of this manual in whole or in part by any means is prohibited without prior permission having been obtained from Photonfocus AG Cg Photonfocus can not be held responsible for any technical or typographical er rors 1 5 Legend In this documentation the reader s attention is drawn to the following icons CS Important note O Alerts and additional information A Attention critical warning DI Notification user guide 2 How to get started CameraLink 1 Install a suitable frame grabber in your PC To find a compliant frame grabber please see the frame grabber compatibility list at www photonfocus com 2 Install the frame grabber software Without installed frame grabber software the camera configuration
9. parameters needed for frame grabber configuration not used not used not used CameraLink port and bit assignments are compliant with the CameraLink standard see CL Table 3 6 summarizes the tap configurations for the DS1 D1312 40 cameras Table 3 7 shows the tap configurations for the DS1 D1312 80 and DS1 D1312 160 cameras Bit TapO TapO 8 Bit 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 of 8 Bit A7 A7 8 BO 9 MSB of 10 Bit B1 Table 3 6 CameraLink 1 Tap port and bit assignments for the DS1 D1312 40 camera 3 4 Frame Grabber relevant Configuration 15 3 Product Specification Bit Tap 0 Tap 1 TapO Tap 1 8Bit 8Bit 0 LSB AO BO AO CO 1 A1 B1 A1 C1 2 A2 B2 A2 C2 3 A3 B3 A3 C3 4 A4 B4 A4 C4 5 A5 B5 A5 C5 6 A6 B6 A6 C6 7 MSB of 8 Bit A7 B7 A7 C7 8 BO B4 9 MSB of 10 Bit B1 B5 Table 3 7 CameraLink 2 Tap port and bit assignments for the DS1 D1312 80 camera and for the DS1 D1312 160 camera 16 4 Functionality This chapter serves as an overview of the camera configuration modes and explains camera features The goal is to describe what can be done with the camera The setup of the DS1 D1312 series cameras is explained in later chapters 4 1 Image Acquisition 4 1 1 Free running and Trigger Mode The DS1 D1312 camera series provides two different readout modes
10. the ratio of readout time over frame time LED Red Red indicates an active serial communication with the camera Table 5 2 Meaning of the LED of the CameraLink cameras 5 2 CameraLink Data Interface The CameraLink standard contains signals for transferring the image data control information and the serial communication Data signals CameraLink data signals contain the image data In addition handshaking signals such as FVAL LVAL and DVAL are transmitted over the same physical channel Camera control information Camera control signals CC signals can be defined by the camera manufacturer to provide certain signals to the camera There are 4 CC signals available and all are unidirectional with data flowing from the frame grabber to the camera For example the external trigger is provided by a CC signal see Table 5 3 for the CC assignment CC1 EXSYNC External Trigger May be generated either by the frame grabber itself software trigger or by an external event hardware trigger CC2 CTRLO CC3 CTRLI CC4 CTRL2 Control2 This signal is reserved for future purposes and is not used Control0 This signal is reserved for future purposes and is not used Control1 This signal is reserved for future purposes and is not used Table 5 3 Summary of the Camera Control CC signals as used by Photonfocus Pixel clock The pixel clock is generated on the camera and is provided to the frame gra
11. voltage The input voltage to the TRIGGER pin must not exceed 15V DC to avoid damage to the internal ESD protection and the optocoupler In order to use the strobe output the internal optocoupler must be powered with 5 15 V DC The STROBE signal is an open collector output therefore the user must connect a pull up resistor see Table 5 1 to STROBE_VDD 5 15 V DC as shown in Fig This resistor should be located directly at the signal receiver Vtrigger 5 15 V DC TRIGGER Vstrobe 2 5 15 V DC STROBE VDD Figure 5 2 Circuit for the trigger input signals The maximum sink current of the STROBE pin is 8 mA Do not connect inductive or capacitive loads such loads may result in damage of the optocoupler If the application requires this please use voltage suppressor diodes in parallel with this components to protect the optocoupler 38 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 CameraLink cameras A dual color LED on the back of the camera gives information about the current status of the CameraLink cameras LED Green Green when an image is output At slow frame rates the LED blinks with the FVAL signal At high frame rates the LED changes to an apparently continuous green light with intensity proportional to
12. 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 8 2 CE Compliance Statement 60 Warranty The manufacturer alone reserves the right to recognize warranty claims 9 1 Warranty Terms The manufacturer warrants to distributor and end customer that for a period of two years from the date of the shipment from manufacturer or distributor to end customer the Warranty Period that e the product will substantially conform to the specifications set forth in the applicable documentation published by the manufacturer and accompanying said product and e the product shall be free from defects in materials and workmanship under normal use The distri
13. Calculate the correction values into the camera RAM To make the correction values permanent use the Save to Flash button Save to Flash Save the current correction values to the internal flash memory A This will overwrite the factory presets 7 1 DS1 D1312 40 DS1 D1312 80 and DS1 D1312 160 55 7 Graphical User Interface GUI 7 1 4 Info This panel shows camera specific information such as type code serial number and firmware revision of the FPGA and microcontroller and the description of the camera interface DS1 D1312 160 cl0 4 Serial 1291 Exposure Window Trigger Data Output Correction Info Reset Camera name Store as Defaults Typecode Settings File Serial a FPGA Revision Factory Reset uC Revision Frame Rate fps Update Average Value Interface Update Figure 7 5 DS1 D1312 160 info panel Camera name Name of the connected camera Typecode Type code of the connected camera Serial Serial number of the connected camera FPGA Revision Firmware revision of built in Sensor FPGA of the connected camera uC Revision Firmware revision of built in microcontroller of the connected camera Interface Description of the camera interface CS For any support requests please enclose the information provided on this tab 56 Mechanical and Optical Considerations 8 1 Mechanical Interface During storage and transport the camera should be protected against vibr
14. File Menu Clear Log Clears the log file buffer Quit Exit the program Help Menu About Copyright notice and version information Help F1 Invoke the online help PFRemote documentation 48 6 5 2 Ports Device Initialization After starting PFRemote the main window as shown in Fig 6 2 will appear In the PortBrowser in the upper left corner you will see a list of supported ports Cg Depending on the configuration your port names may differ and not every port may be functional lt gt If your frame grabber supports clallserial dll version 1 1 CameraLink compliant standard Oct 2001 the name of the manufacturer is shown in the PortBrowser If your frame grabber supports clallserial dll version 1 0 CameraLink compliant D standard Oct 2000 the PortBrowser shows either the name of the dll or the manufacturer name or displays Unknown If your frame grabber does not support clallserial dll copy the clserXXXX dll of lt gt your frame grabber in the PFRemote directory and rename it to clser dll The PortBrowser will then indicate this DLL as clser dll at PFRemote directory After connecting the camera the device can be opened with a double click on the port name or by right clicking on the port name and choosing Open amp Configure If the initialisation of the camera was successful the configuration dialog will open The device is closed when PFRemote is closed Alternatively e g when connecting another camera or
15. NE VALID LVAL mask valid image information The signal SHUTTER indicates the active exposure period of the sensor and is shown for clarity only Frame Time SHUTTER Exposure Time FVAL 1 1 CPRE Linepause Linepause Linepause First Line Last Line DVAL Figure 5 4 Timing diagram sequential readout mode Simultaneous readout timing To achieve highest possible frame rates the camera must be set to Free running mode with simultaneous readout The camera continuously delivers images as fast as possible Exposure time of the next image can start during the readout time of the current image The data is output on the rising edge of the pixel clock The signals FRAME VALID FVAL and LINE VALID LVAL mask valid image information The signal SHUTTER indicates the active integration phase of the sensor and is shown for clarity only 5 3 Read out Timing 41 5 Hardware Interface eck NOA OA Frame Time SHUTTER l Exposure Exposure Time Time CPRE Linepause Linepause Linepause CPRE First Line Last Line DVAL Figure 5 5 Timing diagram simultaneous readout mode readout time exposure time Pcuk HEW WNN NN NININ A II Frame Time SHUTTER nz mm HE Exposure Time HA AY FVAL O O MA Em TU mm CPRE Linepause Linepause Linepause CPRE First Line Last Line DVAL Figure 5 6 Timing diagram simultaneous readout mode readout time expo
16. able while camera power is on For more information about CameraLink see Section 4 8 6 Connect a suitable power supply to the provided 7 pole power plug For the connector assembly see Fig The pinout of the connector is shown in Appendix A Check the correct supply voltage and polarity Do not exceed the maximum operating voltage of 12V DC 10 7 Connect the power supply to the camera see Fig 2 2 Q The status LED on the rear of the camera will light red for a short moment and then flash green For more information see Section 5 1 4 8 Download the camera software PFRemote to your computer You can find the latest version of PFRemote on the support page at www photonfocus com 9 Install the camera software PFRemote Please follow the instructions of the PFRemote setup wizard Setup PFRemote and SDK yy io xi Welcome to the PFRemote and SDK Setup Wizard This will install PFRemote on your computer It is recommended that you close all other applications before continuing Click Next to continue or Cancel to exit Setup Figure 2 3 Screen shot PFremote setup wizard 10 Start the camera software PFRemote and choose the communication port ETE A File Help E Potts Exposure window Trigger Data Output Characteristics amp BitFlow Inc r Exposure E Coreco Imaging E National Instruments Exposure time ms J 10 000 E clser dll at PFRemote direc
17. and hot pixel correction Black Level Offset It may be necessary to adjust the black level offset of the camera Black Level Offset Black level offset value Use this to adjust the black level Calibration Offset FPN Hotpixel Correction The offset correction is based on a black reference image which is taken at no illumination e g lens aperture completely closed The black reference image contains the fixed pattern noise of the sensor which can be subtracted from the live images in order to minimize the static noise Close the lens of the camera Click on the Validation button If the Set Black Ref button is still inactive the average of the image is out of range Change the Property Voltage BlackLevel0ffset until the average value of the image is between 60 and 100 DN Click again on the Validation button and then on the Set Black Ref Button 54 er If only offset and hot pixel correction are needed it is not necessary to calibrate a grey image Gain Correction The gain correction is based on a grey reference image which is taken at uniform illumination to give an image with a mid grey level lt Gain correction is not a trivial feature The quality of the grey reference image is crucial for proper gain correction Produce a grey image with an average value between 550 and 900 DN Click on the Validation button to check the average value If the average value is in range the Set Grey Ref button is active Calculate
18. anges 1 3 September 2010 Section Functionality Test Images added note that a flat histogram is only obtained at a resolution of 1024 x 1024 pixels Section Functionality Image Correction inserted link to GUI description of image correction Section Mechanical and Optical Considerations Optical Interface Cleaning the Sensor updated link to supplier web page 1 2 September 2009 Typos fixed 1 1 July 2009 Added model information for DS1 D1312 40 and DS1 D1312 80 Section 3 1 table feature overview error corrected only 9600 baud supported 1 0 October 2008 First release 0 1 May 2008 Preliminary release 69
19. ansmit configuration image data and trigger e asubminiature connector for the power supply 7 pin Binder series 712 The connectors are located on the back of the camera Fig 5 1 shows the plugs and the status LED which indicates camera operation Power Supply Connector yA CameraLink Connector Status LED Figure 5 1 Rear view of the CameraLink camera The CameraLink interface and connector are specified in CL For further details including the pinout please refer to Appendix A This connector is used to transmit configuration image data and trigger signals 5 1 2 Power Supply The camera requires a single voltage input see Table 3 4 The camera meets all performance specifications using standard switching power supplies although well regulated linear power supplies provide optimum performance It is extremely important that you apply the appropriate voltages to your camera Incorrect voltages will damage the camera For further details including the pinout please refer to Appendix A 37 5 Hardware Interface 5 1 3 Trigger and Strobe Signals The power connector contains an external trigger input and a strobe output The trigger input is equipped with a constant current diode which limits the current of the optocoupler over a wide range of voltages Trigger signals can thus directly get connected with the input pin and there is no need for a current limiting resistor that depends with its value on the input
20. ation shock moisture and dust The original packaging protects the camera adequately from vibration and shock during storage and transport Please either retain this packaging for possible later use or dispose of it according to local regulations 8 1 1 Cameras with CameraLink Interface 1 32 UNCF o 60 4 1 4 20 UNC 8x MS 7mm deep 8x M5 7mm deep 8x M5 7mm deep Figure 8 1 Mechanical dimensions of the CameraLink model displayed without and with C Mount adapter Fig B 1 shows the mechanical drawing of the camera housing for the DS1 D1312 camera The depth of the camera housing is given in Table 1 all values in mm Camera Series DS1 D1312 X housing depth 45 mm Table 8 1 Model specific parameters 57 8 Mechanical and Optical Considerations 8 2 Optical Interface 8 2 1 Cleaning the Sensor The sensor is part of the optical path and should be handled like other optical components with extreme care Dust can obscure pixels producing dark patches in the images captured Dust is most visible when the illumination is collimated Dark patches caused by dust or dirt shift position as the angle of illumination changes Dust is normally not visible when the sensor is positioned at the exit port of an integrating sphere where the illumination is diffuse 1 58 The camera should only be cleaned in ESD safe areas by ESD trained personnel using wrist straps Idea
21. bber for synchronisation 5 2 CameraLink Data Interface 39 5 Hardware Interface Serial communication A CameraLink camera can be controlled by the user via a RS232 compatible asynchronous serial interface This interface is contained within the CameraLink interface and is physically not directly accessible Refer to Section 4 8 for more information Image data FVAL LVAL DVAL Pixel Clock CameraLink CameraLink CC Signals gt Serial Interface Figure 5 3 CameraLink interface system The frame grabber needs to be configured with the proper tap and resolution settings otherwise the image will be distorted or not displayed with the correct aspect ratio Refer to Table 3 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 ANO21 on the Photonfocus website 40 5 3 Read out Timing 5 3 1 Free running Mode Sequential readout timing By default the camera is in free running mode and delivers images without any external control signals The sensor is operated in sequential readout mode which means that the sensor is read out after the exposure time Then the sensor is reset a new exposure starts and the readout of the image information begins again The data is output on the rising edge of the pixel clock The signals FRAME VALID FVAL and LI
22. btained at no illumination e g with lens aperture closed or closed lens opening e t may be necessary to adjust the black level offset of the camera In the histogram of the black reference image ideally there are no grey levels at value 0 DN after adjustment of the black level offset All pixels that are saturated black 0 DN will not be properly corrected see Fig 4 12 The peak in the histogram should be well below the hot pixel threshold of 252 DN 10 bit e Camera settings may influence the grey level Therefore for best results the camera settings of the black reference image must be identical with the camera settings of the image to be corrected Histogram of the uncorrected black reference image T T T T T T black level offset ok black level offset too low Relative number of pixels 200 250 400 Gray level 10 Bit DN 150 Figure 4 12 Histogram of a proper black reference image for offset correction 24 Hot pixel correction Every pixel that exceeds a certain threshold in the black reference image is marked as a hot pixel If the hot pixel correction is switched on the camera replaces the value of a hot pixel by an average of its neighbour pixels see Fig vv hot Ed p Pra Pret pixel ES 2 Pn 1 Ph Ds Figure 4 13 Hot pixel interpolation 4 4 3 Gain Correction The gain correction is based on a grey reference image which is taken at uniform
23. butor shall not make or pass on to any party any warranty or representation on behalf of the manufacturer other than or inconsistent with the above limited warranty set 9 2 Warranty Claim The above warranty does not apply to any product that has been modified or al A tered by any party 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 61 9 Warranty 62 10 References All referenced documents can be downloaded from our website at www photonfocus com CL CameraLink Specification January 2004 SW002 PFLib Documentation Photonfocus August 2005 MANO25 User Manual microDisplayUSB2 0 Photonfocus November 2005 AN006 Application Note Quantum Efficiency Photonfocus February 2004 AN007 Application Note Camera Acquisition Modes Photonfocus March 2004 AN008 Application Note Photometry versus Radiometry Photonfocus December 2004 ANO010 Application Note Camera Clock Concepts Photonfocus July 2004 ANO021 Application Note CameraLink Photonfocus July 2004 ANO026 Application Note LFSR Test Images Photonfocus September 2005 63 10 References 64 A Pinouts A 1 Power Supply Connector The power supply plugs are available from Binder connectors at www binder connector de Fig A 2 shows the power supply plug from the solder side The pin assignment of the power supply
24. compact size make the DS1 D1312 camera the perfect solution for applications in which space is at a premium Wide spectral sensitivity from 320 to 1030 nm e High quantum efficiency gt 50 e High pixel fill factor gt 60 The general specification and features of the camera is listed in the following sections 11 3 Product Specification 3 2 Feature Overview Characteristics Interfaces DS1 D1312 Series CameraLink base configuration Camera Control Configuration Interface PFRemote Windows GUI or programming library CLSERIAL 9 600 baud Trigger Modes Features Interface Trigger External opto isolated trigger input Greyscale resolution 10 bit 8 bit Region of Interest ROI Test pattern LFSR and grey level ramp Shading Correction Offset and Gain High blooming resistance Opto isolated trigger input and opto isolated strobe output Table 3 1 Feature overview see Chapter 4 for more information J 7 0 0 J nj i f Figure 3 1 DS1 D1312 CMOS camera series with C mount lens 12 3 3 Technical Specification Technical Parameters DS1 D1312 Series Technology CMOS active pixel APS Scanning system Progressive scan Optical format diagonal 1 13 6 mm diagonal maximum resolution 2 3 11 6 mm diagonal 1024 x 1024 resolution Resolution 1312 x 1082 pixels Pixel size 8 um x 8 um Active optical
25. consulting expertise Appropriate CameraLink cable solutions are available from Photonfocus 22 4 4 Image Correction 4 4 1 Overview The camera possesses image pre processing features that compensate for non uniformities caused by the sensor the lens or the illumination This method of improving the image quality is generally known as Shading Correction or Flat Field Correction and consists of a combination of offset correction gain correction and pixel interpolation G Since the correction is performed in hardware there is no performance limita tion of the cameras for high frame rates The offset correction subtracts a configurable positive or negative value from the live image and thus reduces the fixed pattern noise of the CMOS sensor In addition hot pixels can be removed by interpolation The gain correction can be used to flatten uneven illumination or to compensate shading effects of a lens Both offset and gain correction work on a pixel per pixel basis i e every pixel is corrected separately For the correction a black reference and a grey reference image are required Then the correction values are determined automatically in the camera Do not set any reference images when gain or LUT is enabled Read the follow ing sections very carefully Correction values of both reference images can be saved into the internal flash memory but this overwrites the factory presets Then the reference images that are delivered
26. de see Fig j 7 Figure 4 7 Ramp test images 8 bit output left 10 bit output right 4 3 2 LFSR The LFSR linear feedback shift register test image outputs a constant pattern with a pseudo random grey level sequence containing every possible grey level that is repeated for every row The LFSR test pattern was chosen because it leads to a very high data toggling rate which stresses the interface electronic and the cable connection In the histogram you can see that the number of pixels of all grey values are the same Please refer to application note ANO26 for the calculation and the values of the LFSR test image 4 3 3 Troubleshooting using the LFSR To control the quality of your complete imaging system enable the LFSR mode set the camera window to 1024 x 1024 pixels x 0 and y 0 and check the histogram If your frame grabber 20 Figure 4 8 LFSR linear feedback shift register test image application does not provide a real time histogram store the image and use a graphic software tool to display the histogram In the LFSR linear feedback shift register mode the camera generates a constant pseudo random test pattern containing all grey levels If the data transmission is error free the histogram of the received LFSR test pattern will be flat Fig 4 9 On the other hand a non flat histogram Fig indicates problems that may be caused either by the cable by the connectors or by the frame grabber A possible orig
27. dout mode Simultaneous readout interleave exposure To achieve highest possible frame rates the camera must be set to Free running mode with simultaneous readout The camera continuously delivers images as fast as possible Exposure time of the next image can start during the readout time of the current image exposure n idle exposure n 1 idle read out n 1 read out n read out n 1 frame time Figure 4 4 Timing in free running simultaneous readout mode readout time gt exposure time 18 exposure n 1 exposure n exposure n 1 idle read out n 1 idle read out n frame time Figure 4 5 Timing in free running simultaneous readout mode readout time lt exposure time When the acquisition of an image needs to be synchronised to an external event an external trigger can be used refer to 4 6 and 5 4 In this mode the camera is idle until it gets a signal to capture an image exposure n lt ide X exposure n 1 idle gt Readoutn 1 idle gt Readout n idle gt Readout n 1 external trigger 2 pl gt earliest possible trigger Figure 4 6 Timing in triggered simultaneous readout mode 4 1 2 Exposure Control The exposure time defines the period during which the image sensor integrates the incoming light Refer to Section TableB 3 for the allowed exposure time range 4 1 3 Maximum Frame Rate The maximum frame rate depends on the exposure time and the size of the i
28. e is given by the readout time Frames per second equal to the invers of the readout time Simultaneous readout mode exposure time readout time The frame rate is given by the exposure time Frames per second equal to the invers of the exposure time The simultaneous readout mode allows higher frame rate However if the exposure time strongly exceeds the readout time then the effect on the frame rate is neglectable In simultaneous readout mode image output faces minor limitations The overall linear sensor reponse is partially restricted in the lower grey scale region When changing readout mode from sequential to simultaneous readout mode E or vice versa new settings of the BlackLevelOffset and of the image correction are required Sequential readout By default the camera continuously delivers images as fast as possible Free running mode in the sequential readout mode Exposure time of the next image can only start if the readout time of the current image is finished exposure read out exposure read out Figure 4 2 Timing in free running sequential readout mode When the acquisition of an image needs to be synchronised to an external event an external trigger can be used refer to Section 4 6 and to Section 5 4 In this mode the camera is idle until it gets a signal to capture an image exposure read out idle exposure external trigger Figure 4 3 Timing in triggered sequential rea
29. ection Info Reset Trigger Store as Defaults Interface Trigger 1 0 Trigger Settings File 2 E Factory Reset Strobe Pulse Width ms 1 000000 Output Mode Frame Rate fps Dutput Mode Normal Update v v Resolution 8Bit erage Value Update Figure 7 3 DS1 D1312 160 trigger and data output panel Trigger Trigger Source options are Free running The camera continuously delivers images with a certain configurable frame rate Interface Trigger The Trigger signal is applied to the camera by the CameraLink frame grabber or the USB interface respectively 1 O Trigger The trigger signal is applied directly to the camera on the power supply connector Further trigger settings Trigger signal active low Define the trigger signal to be active high default or active low Strobe The camera generates a strobe output signal that can be used to trigger a strobe The pulse width can be defined by software To turn off strobe output set StrobePulseWidth to 0 Strobe Pulse Width ms The pulse width of the strobe trigger in milliseconds Output Mode Output Mode options are Normal Normal mode LFSR Test image Linear feedback shift register pseudo random image The pattern depends on the grey level resolution Ramp Test image Values of pixel are incremented by 1 starting at each row The pattern depends on the grey level resolution Resolution options are 8 Bi
30. er G litter Int EXSYNC Camera SHUTTER Camera la camera ha opto uo Camera opto I O Camera Gmel Figure 5 9 Timing Diagram for Trigger Delay 5 4 Trigger 45 5 Hardware Interface 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 due to the sampling of the trigger signal by the clocked camera electronic The trigger delay and the jitter are specified in Table 5 6 and shown in Fig 5 9 The description of the parameters is summarized in Table 5 5 Trigger delay type Description ta_ra Trigger delay of the frame grabber refer to frame grabber manual gia Variable camera trigger delay ta camera Constant camera trigger delay ta opto Variable trigger delay of opto coupler Table 5 5 Trigger Delay Parameters Trigger delay type DS1 D1312 40 DS1 D1312 80 DS1 D1312 160 tyitter ta camera Table 5 6 Trigger Delay for the DS1 D1312 160 camera in sequential read out mode G In simultaneous read out mode trigger delay times may exceed indicated trigger delay times of the sequential read out mode see Table 5 6 DI Please contact Photonfocus for further information on trigger delay times in simultaneous read out mode 46 6 The PFRemote Control Tool 6 1 Overview PFRemote is a graphical configuration tool for Photo
31. ernal Trigger 4 6 1 Trigger Source 4 7 Strobe Output 4 8 Configuration Interface CameraLink CONTENTS 11 11 12 13 15 CONTENTS 5 Hardware Interface 5 1 Connectors 5 1 1 Cameralink Connector 22 2222 5 3 Read out Timing 5 4 Trigger 5 1 2 Power Supply 5 1 3 Trigger and Strobe Signalsl 2 K K 5 1 4 Status Indicator CameraLink cameras 5 2 CameraLink Data Interface 5 3 1 Free running Mode 5 4 1 Trigger Modes 5 4 2 Trigger Delay 6 The PFRemote Control Tool 6 2 PFRemote and PELID 2 2 ava yd EUR J 2 4 4 OE E Ro museo ae a 6 3 Operating System o ka ee Kala 2 da A Yom eG 2 ee 8 6 4 Installation Notes 6 5 Graphical User Interface GUI o o e 6 5 1 PortBrowse r so ee Pe ae a a 6 5 2 Ports Device Initialization ee K K KI 6 5 3 Main Buttons llle llle nns 6 6 Device Properties 7 Graphical User Interface GUI 7 1 DS1 D1312 40 DS1 D1312 80 and DS1 D1312 160 1 1 1 2 Trigger 8 8 1 Exposure Window Mechanical and Optical Considerations Mechanical Interface 8 1 1 Cameras with CameraLink Interface 8 2 Optical Interface 8 3 Compliance 9 Warranty 9 1 Warranty Terms 9 2 Warranty Claim 10 References 8 2 1 Cleaning the Sens
32. essarily CameraLink specific but may depend on a CameraLink API compatible DLL which should also be provided by your frame grabber manufacturer e CLALLSERIAL DLL Interface to CameraLink frame grabber which supports the clallserial dll e CLSER USB DLL Interface to USB port More information about these DLLs is available in the SDK documentation SW002 6 5 Graphical User Interface GUI PFRemote consists of a main window Fig and a configuration dialog In the main window the camera port can be opened or closed and log messages are displayed at the bottom The configuration dialog appears as a sub window as soon as a camera port was opened successfully In the sub window of PFRemote the user can configure the camera properties The following sections describe the general structure of PFRemote 6 5 1 Port Browser On start PFRemote displays a list of available communication ports in the main window olx File Help E BitFlow Inc Coreco Imaging E National Instruments clser dil at PFRemote directory USB RS 232 Figure 6 2 PFRemote main window with PortBrowser and log messages To open a camera on a specific port double click on the port name e g USB Alternatively right click on the port name and choose Open amp Configure The port is then queried for a compatible Photonfocus camera In the PFRemote main window there are two menus with the following entries available
33. evaluation kit the device can also be closed explicitely by right clicking on the port name and choosing Close Make sure that the configuration dialog is closed prior to closing the port DI Errors warnings or other important activities are logged in a log window at the bottom of the main window If the device does not open check the following e Is the power LED of the camera active Do you get an image in the display software of your frame grabber e Verify all cable connections and the power supply e Check the communication LED of the camera do you see some activity when you try to access the camera 6 5 Graphical User Interface GUI 49 6 The PFRemote Control Tool 6 5 3 Main Buttons The buttons on the right side of the configuration dialog store and reset the camera configuration xi Reset Store as defaults Settings file 2 ul Factory Reset Figure 6 3 Main buttons Reset Reset the camera and load the default configuration Store as defaults Store the current configuration in the camera flash memory as the default configuration After a reset the camera will load this configuration by default Settings file File Load Load a stored configuration from a file Settings file File Save Save current configuration to a file Factory Reset Reset camera and reset the configuration to the factory defaults 6 6 Device Properties Cameras or sensor devices are generally addressed as device in this
34. gger Inputs 4 7 Strobe Output The strobe output is an opto isolated output located on the power supply connector that can be used to trigger a strobe The strobe output can be used both in free running and in trigger mode There is a programmable delay available to adjust the strobe pulse to your application The strobe output needs a separate power supply Please see Section 5 4 for more information 4 8 Configuration Interface CameraLink A CameraLink camera can be controlled by the user via a RS232 compatible asynchronous serial interface This interface is contained within the CameraLink interface as shown in Fig 4 22 and is physically not directly accessible Instead the serial communication is usually routed through the frame grabber For some frame grabbers it might be necessary to connect a serial cable from the frame grabber to the serial interface of the PC 34 CameraLink N Image data FVAL LVAL DVAL j Pixel Clock CC Signals Serial Interface Figure 4 22 CameraLink serial interface for camera communication 4 8 Configuration Interface CameraLink CameraLink 35 4 Functionality 36 Hardware Interface 5 1 Connectors 5 1 1 CameraLink Connector The CameraLink cameras are interfaced to external components via e aCameraLlink connector which is defined by the CameraLink standard as a 26 pin 0 5 Mini Delta Ribbon MDR connector to tr
35. h 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 Fig 5 7 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 Fig 5 7 indicates the active integration phase of the sensor and is shown for clarity only PCLK LI 1 PU LA PU LN PU LN FU LN U LN FU LN U LN 1 EXSYNC Frame Time SHUTTER l Exposure Time FVAL A 7 HH 1 CPRE Linepause Linepause Linepause First Line Last Line DVAL Figure 5 7 Trigger timing diagram for camera controlled exposure 5 4 2 Trigger Delay The total delay between the trigger edge and the camera exposure consists of the delay in the frame grabber and the camera Fig 5 8 Usually the delay in the frame grabber is relatively large to avoid accidental triggers caused by voltage spikes see Fig 5 9 44 Camera CameraLink Frame Grabber G Interface Trigger Trigger Source I O Trigger Trigger Source O Trigger I O Control I O Board Figure 5 8 Trigger Delay visualisation from the trigger source to the camera TRIGGER Trigger source G eo ure y EXSYNC Frame grabb
36. he optically active surface during the cleaning process Iso Propanol Germany Table 8 2 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 reinraum de BB 003 Germany Large Q Tips SWABS Q tips Hans J Michael GmbH CA 003 Germany Point Slim HUBY 340 Q tips Hans J Michael GmbH Germany Methanol Fluid Johnson Matthey GmbH Semiconductor Grade Germany 99 9 min Assay Merck 12 6024 UN1230 slightly flammable and poisonous www alfa chemcat com 2 Propanol Fluid Johnson Matthey GmbH Semiconductor Grade 99 5 min Assay Merck 12 5227 UN1219 slightly flammable www alfa chemcat com For cleaning the sensor Photonfocus recommends the products available from the suppliers as listed in Table 8 2 D 8 2 Optical Interface Cleaning tools except chemicals can be purchased directly from Photonfocus www photonfocus com 59 8 Mechanical and Optical Considerations 8 3 Compliance CE Compliance Statement We Photonfocus AG CH 8853 Lachen Switzerland declare under our sole responsibility that the following products MV D1024 28 CL 10 MV D1024 80 CL 8 MV D1024 160 CL
37. ic presentation of the gain correction algorithm How to Obtain a Grey Reference Image In order to improve the image quality the grey reference image must meet certain demands Cg The detailed procedure to set the grey reference image is described in Section 7 1 3 e The grey reference image must be obtained at uniform illumination Use a high quality light source that delivers uniform illumination Standard illu mination will not be appropriate e When looking at the histogram of the grey reference image ideally there are no grey levels at full scale 1023 DN Q 10 bit All pixels that are saturated white will not be properly corrected see Fig e Camera settings may influence the grey level Therefore the camera settings of the grey reference image must be identical with the camera settings of the image to be corrected Histogram of the uncorrected gray reference image 1 T T T T T T gray reference image ok gray reference image too bright Relative number of pixels 600 650 700 750 800 850 900 950 1000 1050 Gray level 10 Bit DN Figure 4 15 Proper grey reference image for gain correction 26 4 4 4 Corrected Image Offset gain and hot pixel correction can be switched on separately The following configurations are possible e No correction e Offset correction only e Offset and hot pixel correction e Hot pixel correction only e Offset and gain correction e _ Offse
38. illumination to give an image with a mid grey level Gain correction is not a trivial feature The quality of the grey reference image is crucial for proper gain correction Gain correction algorithm After configuring the camera with a black and grey reference image the camera is ready to apply the gain correction 1 Determine the average value of the grey reference image Subtract the offset correction matrix from the grey reference image Divide the average value by the offset corrected grey reference image Pixels that have a grey level higher than a certain threshold are marked as hot pixels Store the result in the camera as the gain correction matrix e UI bw w PS During image acquisition multiply the gain correction matrix from the offset corrected acquired image and interpolate the hot pixels see Section 4 4 2 O Gain correction is not a trivial feature The quality of the grey reference image is crucial for proper gain correction G Gain correction always needs an offset correction matrix Thus the offset correc tion always has to be performed before the gain correction 4 4 Image Correction 25 4 Functionality EE u 1 1 v 1 1 v average AH 112 00 0 9 1 1 40 of gray E Salida gt 1212081 reference picture 110 2 09 1 1 q SE ide gray reference offset correction gain correction picture matrix matrix Figure 4 14 Schemat
39. in of failure message can be caused by the CameraLink cable amp which exceeds the maximum length Also CameraLink cables may suffer either from stress due to wrong installation or from severe electromagnetic interfer ence 4 3 Test Images 21 4 Functionality Some thinner CameraLink cables have a predefined direction In these cables lt gt not all twisted pairs are separately shielded to meet the RS644 standard These pairs are used for the transmission of the RX TX and for the CC1 to CC4 low frequency control signals M Histogramm Port A Picture 620 Port A Picture 620 127 255 Figure 4 9 LFSR test pattern received at the frame grabber and typical histogram for error free data transmission M Histogramm LT Xun Port A Picture 440 Mi m rm n Figure 4 10 LFSR test pattern received at the frame grabber and histogram containing transmission errors CameraLink cables contain wire pairs which are twisted in such a way that the lt gt cable impedance matches with the LVDS driver and receiver impedance Excess stress on the cable results in transmission errors which causes distorted images Therefore please do not stretch and bend a CameraLink cable In robots applications the stress that is applied to the CameraLink cable is especially high due to the fast movement of the robot arm For such applications special drag chain capable cables are available Please contact the Photonfocus Support for
40. l input range 5 15 V DC Max power consumption Lens mount C Mount CS Mount optional Dimensions 60 x 60 x 45 mm Mass 265g Conformity CE RoHS WEE Table 3 4 Physical characteristics and operating ranges Fig 3 2 shows the quantum efficiency and the responsivity of the A1312 sensor displayed as a function of wavelength For more information on photometric and radiometric measurements see the Photonfocus application notes AN006 and ANOOS available in the support area of our website www photonfocus com 60 QE Responsivity T 1200 50 1000 40 30 Quantum Efficiency 20 a 9 o Responsivity V J m2 10 200 300 400 500 600 700 800 900 1000 1100 Wavelength nm Figure 3 2 Spectral response of the A1312 sensor in the DS1 D1312 camera series 14 3 4 Frame Grabber relevant Configuration The parameters and settings which are essential to configure the frame grabber are shown in the following table The timing of the camera is given in Section 5 3 Pixel Clock per Tap 40 MHz DS1 D1312 80 40 MHz DS1 D1312 160 80 MHz Number of Taps 1 2 2 Greyscale resolution 10 bit 8 bit Line pause 36 clock cycles 10 bit 8 bit 18 clock cycles 10 bit 8 bit 18 clock cycles EXSYNC not used EXSYNC not used EXSYNC not used not used not used not used Table 3 5 Summary of
41. lly 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 8 2 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 the sensor carefully and slowly First remove coarse particles and dirt from the sensor using Q Tips soaked in 2 propanol applying as little pressure as possible Using a method similar to that used for cleaning optical surfaces clean the sensor by starting at any corner of the sensor and working towards the opposite corner Finally repeat the procedure with methanol to remove streaks It is imperative that no pressure be applied to the surface of the sensor or to the black globe top material if present surrounding t
42. mage see 4 5 4 2 Pixel Response 4 2 1 Linear Response The camera offers a linear response between input light signal and output grey level In addition a linear digital gain may be applied as follows Please see Table 3 2 for more model dependent information Gain x1 amp The DS1 D1312 camera series supports gain x1 only 4 2 Pixel Response 19 4 Functionality Black Level Adjustment The black level is the average image value at no light intensity It can be adjusted by the software by changing the black level offset Thus the overall image gets brighter or darker Use a histogram to check the settings of the black level 4 3 Test Images Test images are generated in the camera FPGA independent of the image sensor They can be used to check the transmission path from the camera to the frame grabber Independent from the configured grey level resolution every possible grey level appears the same number of times in a test image Therefore the histogram of the received image must be flat A test image is a useful tool to find data transmission errors that are caused most often by a defective cable between camera and frame grabber The analysis of the test images with a histogram tool gives the correct result at a resolution of 1024 x 1024 pixels only 4 3 1 Ramp Depending on the configured grey level resolution the ramp test image outputs a constant pattern with increasing grey level from the left to the right si
43. n table Table 4 6 Calculation of the frame time simultaneous mode The calculation of the frame time in simultaneous read out mode requires more detailed data input and is skipped here for the purpose of clarity Q The formula for the calculation of the frame time in simultaneous mode is avail able from Photonfocus on request 4 5 Reduction of Image Size 31 4 Functionality Width ROI X DS1 D1312 40 ROI X DS1 D1312 80 not available not available ROI X DS1 D1312 160 not available not available 416 512 not available not available not available not available 384 512 448 not available 352 512 416 448 not available not available 256 512 not available 224 512 192 512 160 512 128 512 Table 4 5 Some possible ROI X settings ROI Dimension DS1 D1312 40 DS1 D1312 80 DS1 D1312 160 1312 x 1082 tro 36 46 ms t 2 18 23 ms tro 9 12 ms 1024 x 512 tro 13 57 ms tro 6 78 ms tro 3 39 ms 1024 x 256 tro 6 78 ms tro 3 39 ms tro 1 70 ms Table 4 6 Read out time at different ROI settings for the DS1 D1312 CMOS camera series in sequential read out mode Cg A frame rate calculator for calculating the maximum frame rate is available in the support area of the Photonfocus website An overview of resulting frame rates in different exposure time settings is given in
44. nfocus cameras The latest release can be downloaded from the support area of www photonfocus com All Photonfocus cameras can be either configured by PFRemote or they can be programmed with custom software using the PFLib SDK PFLIB 6 2 PFRemote and PFLib As shown in Fig 6 1 the camera parameters can be controlled by PFRemote and PFLib respectively To grab an image use the software or the SDK that was delivered with your frame grabber Frame Grabber Figure 6 1 PFRemote and PFLib in context with the CameraLink frame grabber software 6 3 Operating System The PFRemote GUI is available for Windows OS only For Linux or QNX operating systems we provide the necessary libraries to control the camera on request but there is no graphical user interface available lt If you require support for Linux or QNX operating systems you may contact us for details of support conditions 6 4 Installation Notes Before installing the required software with the PFInstaller make sure that your frame grabber software is installed correctly Several DLLs are necessary in order to be able to communicate with the cameras 47 6 The PFRemote Control Tool PFCAM DLL The main DLL file that handles camera detection switching to specific camera DLL and provides the interface for the SDK e CAMERANAME DLL Specific camera DLL e g ds1_d1312_160 dll e COMDLL DLL Communication DLL This COMDLL is not nec
45. or A 1 Power Supply Connector 2 2 2 222mm nn A 2 Cameralink Connector xx kk Hmm B Revision History 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 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
46. photon focus User Manual DS1 D1312 CameraLink Series CMOS Area Scan Camera MANO39 09 2010 V1 3 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 1 2 Contact 1 3 Sales Offices QC TRE 15 Legend 2 How to get started CameraLink 3 Product Specification 3 1 Introduction cT a 3 4 Frame Grabber relevant Configuration 4 Functionality 4 1 Image Acquisition 4 1 1 Free running and Trigger Mode 4 1 2 Exposure Control TEE 4 2 Pixel Response 4 2 1 Linear Response 4 3 Testimages 4 3 1 Ramp 43 2 LEFSRBl o o 4 3 3 Troubleshooting using the LFSR 4 4 Image Correction O ECT 4 4 2 Offset Correction FPN Hot Pixels LA dk om a Rss 4 4 4 Corrected Image 4 5 Reduction of Image Size 4 5 1 Region of Interest ROI 4 5 2 ROI configuration 4 5 3 Calculation of the maximum frame fatel 4 6 Ext
47. plug is given in Table A 2 It is extremely important that you apply the appropriate voltages to your camera Incorrect voltages will damage or destroy the camera Figure A 1 Power connector assembly Connector Type Order Nr 7 pole plastic 99 0421 00 07 7 pole metal 99 0421 10 07 Table A 1 Power supply connectors Binder subminiature series 712 65 A Pinouts Pin I O Type Name Description VDD 12 V DC 10 GND Ground RESERVED Do not connect STROBE VDD 5 15 VDC STROBE Strobe control opto isolated TRIGGER External trigger opto isolated 5 15V DC PWR GROUND Signal ground for opto isolated strobe signal 1 2 3 4 5 6 7 Table A 2 Power supply plug pin assignment A 2 CameraLink Connector The pinout for the CameraLink 26 pin 0 5 Mini D Ribbon MDR connector is according to the CameraLink standard CL and is listed here for reference only see Table The drawing of the CameraLink cable plug is shown in Fig Cg Cameralink cables can be purchased from Photonfocus directly www photonfocus com 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Figure A 3 CameraLink cable 3M MDR 26 plug both ends 66 PIN IO Name Description 1 PW SHIELD Shield 2 O N XDO Negative LVDS Output CameraLink Data DO 3 O N_XD1 Negative LVDS O
48. software These devices have properties that are accessed by a property name These property names are translated into register accesses on the driver DLL The property names are reflected in the GUI as far as practicable A property name normally has a special mark up throughout this document for example ExposureTime Some properties are grouped into a structure whose member is accessed via dot notation e g Window X for the start X value of a region of interest When changing a property the property name can always be seen in the log window of the main program window 50 Graphical User Interface GUI 7 1 DS1 D1312 40 DS1 D1312 80 and DS1 D1312 160 GUI description This section describes the parameters of the following cameras e DS1 D1312 40 CL CameraLink interface e DS1 D1312 80 CL CameraLink interface e DS1 D1312 160 CL CameraLink interface The following sections are grouped according to the tabs in the configuration dialog Frame Rate fps 52 10 Update r Average Value Update Figure 7 1 DS1 D1312 160 frame rate and average value Frame Rate fps Shows the actual frame rate of the camera in frames per second Update To update the value of the frame rate click on this button Average Value Grey scale average of the actual image This value is in 10 bit 0 1023 Update To update the value of the average click on this button 51 7 Graphical User Interface GUI 7 1 4 Exposure Window
49. sure time 42 Frame time Exposure time PCLK Frame time is the inverse of the frame rate Period during which the pixels are integrating the incoming light Pixel clock on CameraLink interface SHUTTER FVAL Frame Valid Internal signal shown only for clarity Is high during the exposure time Is high while the data of one complete frame are transferred LVAL Line Valid Is high while the data of one line are transferred Example To transfer an image with 640x480 pixels there are 480 LVAL within one FVAL active high period One LVAL lasts 640 pixel clock cycles DVAL Data Valid Is high while data are valid DATA Transferred pixel values Example For a 100x100 pixel image there are 100 values transferred within one LVAL active high period or 100 100 values within one FVAL period Line pause Delay before the first line and after every following line when reading out the image data Table 5 4 Explanation of control and data signals used in the timing diagram These terms will be used also in the timing diagrams of Section 5 4 5 3 Read out Timing 43 5 Hardware Interface 5 4 Trigger 5 4 1 Trigger Modes The following sections show the timing diagram for the trigger modes The signal ExSync denotes the trigger signal that is provided either by the interface trigger or the I O trigger see Section 4 6 The other signals are explained in Table 5 4 For an active hig
50. t Grey level resolution of 8 bit 10 Bit Grey level resolution of 10 bit 7 1 DS1 D1312 40 DS1 D1312 80 and DS1 D1312 160 53 7 Graphical User Interface GUI 7 1 3 Correction This tab contains correction settings DS1 D1312 160 cl0 4 Serial 1291 Exposure Window Trigger Data Output Correction Info Reset Correction Mode Calibration C Off Offset FPN Hotpixel Gain Correction C Offset Correction Settings File Produce a black image with Produce a grey image with z 60DN lt average lt 100DN 550DN lt average lt 900DN a 10Bit 10Bit C Offset Gain F Validati Validati actor Reset Offset Gain Hotpixel ___Velidation S Frame Rate fps Black Level Offset Set Black et 103 Calculate Correction 3 sec mane Save to Flash 45 sec WARNING Store as Defaults Update erage Value The factory presets will be deleted Update Please refer to the manual for more details about the correction modes Figure 7 4 DS1 D1312 160 correction panel Correction Mode The camera has image pre processing features that compensate for non uniformities caused by the sensor the lens or the illumination Off No correction Offset Activate offset correction Offset Hotpixel Activate offset and hot pixel correction Hotpixel Activate hot pixel correction Offset Gain Activate offset and gain correction Offset Gain Hotpixel Activate offset gain
51. t gain and hot pixel correction In addition the black reference image and grey reference image that are currently stored in the camera RAM can be output 1 1 v 1 i v 112 010 09 111 0 2 1 J 1 1 e 12 12 0 81 110 2 09 1 1 7 jose 3 5 current image offset correction gain correction corrected image matrix matrix Figure 4 16 Schematic presentation of the corrected image using gain correction algorithm Table 4 2 shows the minimum and maximum values of the correction matrices i e the range that the offset and gain algorithm can correct Minimum Maximum Offset correction 127 DN 10 bit 127 DN 10 bit Gain correction 0 42 2 67 Table 4 2 Offset and gain correction ranges 4 4 Image Correction 27 4 Functionality 4 5 Reduction of Image Size With Photonfocus cameras there are several possibilities to focus on the interesting parts of an image thus reducing the data rate and increasing the frame rate The most commonly used feature is Region of Interest ROI 4 5 1 Region of Interest ROI Some applications do not need full image resolution e g 1312 x 1082 pixels By reducing the image size to a certain region of interest ROI the frame rate can be drastically increased A region of interest can be almost any rectangular window and is specified by its position within the full frame and its width W and height H Fig Fig 4 18
52. table Table 32 Exposure time DS1 D1312 40 DS1 D1312 80 DS1 D1312 160 10 us 27 27 fps 54 54 fps 108 108 fps 27 27 fps 54 54 fps 107 108 fps 27 27 fps 53 54 fps 103 108 fps 27 27 fps 51 54 fps 98 108 fps 26 27 fps 49 54 fps 89 108 fps 24 27 fps 42 54 fps 70 108 fps 10 ms 22 27 fps 35 54 fps 52 99 fps 12 ms 21 27 fps 33 54 fps 47 82 fps Table 4 7 Frame rates of different exposure times sequential readout mode simultaneous readout model resolution 1312 x 1082 pixel correction on 4 5 Reduction of Image Size 33 4 Functionality 4 6 External Trigger An external trigger is an event that starts an exposure The trigger signal is either generated on the frame grabber soft trigger or comes from an external device such as a light barrier If a trigger signal is applied to the camera before the earliest time for the next trigger this trigger will be ignored 4 6 1 Trigger Source The trigger signal can be configured to be active high or active low One of the following trigger sources can be used Interface Trigger In the interface trigger mode the trigger signal is applied to the camera by the CameraLink interface Trigger In the trigger mode the trigger signal is applied directly to the camera by the power supply connector via an optocoupler Any Trigger Source Interface Trigger DATA Any Trigger Trigger Input Source Figure 4 21 Tri
53. tool PFRe Q mote will not be able to communicate with the camera Please follow the in structions of the frame grabber supplier 3 Remove the camera from its packaging Please make sure the following items are included with your camera e Power supply connector 7 pole power plug e Camera body cap If any items are missing or damaged please contact your dealership 4 Remove the camera body cap from the camera and mount a suitable lens should always be held with the opening facing downwards to prevent dust or When removing the camera body cap or when changing the lens the camera debris falling onto the CMOS sensor Figure 2 1 Camera with protective cap and lens Do not touch the sensor surface Protect the image sensor from particles and 4 dirt 2 How to get started CameraLink9 The sensor has no cover glass therefore dust on the sensor surface may resemble to clusters or extended regions of dead pixel Cg To choose a lens see the Lens Finder in the Support area at www photonfocus com 5 Connect the camera to the frame grabber with a suitable CameraLink cable see Fig 2 2 CameraLink cables can be purchased from Photonfocus directly www photonfocus com Please note that Photonfocus provides appropriate solutions for your advanced vision applications 7 nn lt gt Figure 2 2 Camera with frame grabber power supply and cable A Do not connect or disconnect the CameraLink c
54. tory MV D1024E 160 el 5 Constant Frame Rate USB E RS 232 Frame time ms J 16657 m Information 16 25 26 Opening device on port cl0 4 Image Counter 985682 Update 16 25 26 Device opened on port clO 4 E Update Missed Trigger Counter 0 Update Status Line Figure 2 4 PFRemote start window 11 Check the status LED on the rear of the camera DI The status LED lights green when an image is being produced and it is red when serial communication is active For more information see Section 12 You may display images using the software that is provided by the frame grabber manufacturer 2 How to get started CameraLink9 10 Product Specification 3 1 Introduction The DS1 D1312 camera series 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 It is aimed at standard applications in industrial image processing The principal advantages are e Resolution of 1312 x 1082 pixels e Superior signal to noise ratio e Low power consumption at high speeds e Very high resistance to blooming e High dynamic range of up to 60 dB e Ideal for high speed applications Global shutter e Greyscale resolution of up to 10 bit e On camera shading correction Software provided for setting and storage of camera parameters e The camera has a digital CameraLink interface e The
55. utput 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 CCA Positive LVDS Input Camera Control 4 CC4 13 PW SHIELD Shield 14 PW SHIELD Shield 15 O P XDO Positive LVDS Output CameraLink Data DO 16 O P_XD1 Positive LVDS Output CameraLink Data D1 17 O P_XD2 Positive LVDS Output CameraLink Data D2 18 O P_XCLK Positive LVDS Output CameraLink Clock 19 O P_XD3 Positive LVDS Output CameraLink Data D3 20 N SERTOCAM Negative LVDS Input Serial Communication to the camera 21 O P_SERTOFG Positive LVDS Output Serial Communication from the camera 22 P_CC1 Positive LVDS Input Camera Control 1 CC1 23 N_CC2 Negative LVDS Input Camera Control 2 CC2 24 P_CC3 Positive LVDS Input Camera Control 3 CC3 25 N_CC4 Negative LVDS Input Camera Control 4 CC4 26 PW SHIELD Shield S PW SHIELD Shield Table A 3 Pinout of the CameraLink connector A 2 CameraLink9 Connector 67 A Pinouts 68 Revision History Revision Date Ch
Download Pdf Manuals
Related Search