LT-400CL Manual
Contents
1. Fig 23 Windowing reads out only 2048 pixels at the center 6 3 14 Test pattern generator LT 400CL has four test pattern generators In the following drawings figures in shown are for 8 bits output 20 LT 400CL Color bar siga 155 767 1273 1731 2303 2815 3327 3859 405 Fig 24 color test pattern Gray 1 890 222 Signal RGB xe DVAL 4095 Fig 25 Gradation test pattern Gray 2 890 222 Signal RGB a iS DVAL Fig 26 Multi burst test pattern White 890 222 Signal RGB 32 8 0 7 DVAL 4095 Fig 27 White test pattern 21 LT 400CL Ey See the possibilities 6 4 Operation modes The LT 400CL has the following operation modes Trieger Mode Trigger origin Command Description Command Description 1 TR 0 No shutter TG 0 Internal 2 TG 1 External 3 TR 1 Shutter select TG 0 Internal 4 TG 1 External 5 TR 2 Pulse width control TG 1 6 4 1 No shutter mode with internal trigger In this mode the camera does not accept an external trigger signal as the line rate is generated from an internal clock user programmable command LR The exposure time is direct2. nee 22 6 4 2 No shutter mode with external 99 enne 24 6 4 3 Shutter select mode with internal trigger 26 6 4 4 Shutter select mode with external 28 6 4 5 Pulse Width Control 30 6 4 6 Compatibility of trigger modes and functions 32 Zi Gonfieurine the camera 33 ZA WRS2232C CONN Ol 33 7 2 ET 400GL Command ET 34 8 Functions listed alphabetically by command acronyms 39 8 1 Command AH One push AWB 39 8 2 Command AHRS Request status after One Push 39 8 3 Command AL Automatic Line Rate Reference 39 8 4 Command AR Automatic Line Rate setting 39 8 5 Command ARST Auto reset 40 8 6 Command AW Activate One push Auto White Balance AWB Gain 40 8 7 Command AWRS Inquire the status after one push
3. Data ds ICLK 12 5 OM Dummy or Ttransfer data Pi els CB Optical B xk Piels TP Transition Pixa 49 Active Pixd s 150 Isolation Stages LVAL Line id Oval Data Wd id Fig 10 Video output timing 6 3 Key functions 6 3 1 Line rate Command LR This function can set the line rate longer than 1L Accordingly it is possible to set the camera scan rate with the object running speed or to boost up the sensitivity by setting longer exposure time Adjusting range 61 8us 1L to 15 02ms Adjusting unit 12 5ns Operation mode TG 0 Internal trigger The line rate can be automatically configured one push auto line set Command AR This function will calculate and set the line rate of the camera based on the Automatic Line Rate Reference Level Command AL and the scene illumination 6 3 2 Electronic shutter Exposure Command PER PEG This function sets the exposure time regardless of line rate setting The exposure time can be set for red blue and green respectively Command 4800 to 1194752 PEG 4800 to 1194752 4800 to 1194752 Adjusting range 60us 4800clk to 14 93ms 1194752clk RGB individually Adjusting unit 12 5 ns 1clock RGB individually Operation mode Shutter select internal trigger and shutter select external trigger Note Exposure time can be set as mentioned before However if the line r
4. 40 8 8 Command Bit eee e ehe e eme e emen 40 8 9 Command BI Binning Horizontal mn 41 8 10 Command BL Master Black Level e emen 41 LT 400CL Ry See the possibilities 8 11 Commands BLR and BLB Black level red and black level blue 41 8 12 Command BLM Black level mode eee ene ehe enne 41 8 13 Command Interlocked R and B exposure with 41 8 14 Command Gain level master 42 8 15 Commands and GAB Red and blue gain 42 8 16 Command GM Gain ModE enne 42 8 17 Command KN Knee ehe e he hehe eene 42 8 18 Commands KSR KSG and KSB Knee slope for and 42 8 19 Commands and Knee point for and 42 8 20 Command LR Line Rate Scan Rate cece cece eee enhn 43 8 21 Command NR Noise reduction ccc cece cece eect nee esee ene ehh enne 43 8 22 Command PBC Select pixel black correction
5. du 8 BB ES 8 2421 i O Xe IE ER RAE ER 00000 8 534 5 11363 2006 SK EL x VRE PAS E 11363 2006 XE BER EME AT ZEUS x Gr RAR Ge FE BADE 199 5 552 ey TSB 19 BPE A PE KE HS BU UE we AS Hs 15 HMRI LT 400CL Contents EI IGI HRMS U 5 2 Camera nomenclature ecd Rx 5 3 5 Malrifeatur6s RNRR RR ERR RN ENR RR ERR ERR RR RR ERR ERE RR ER ERRREERERRRERRNRR ERR E 5 4 Locations and FUNCTIONS ee pe 6 Aids MAIN UNI m 6 42 Redy Panel and Indicators A 7 Note Factory default settings for both functions are OFF 7 5 Input and output connectors signals and 066 8 5 4 12 Connector eee ee eee rr ERR ERR sabe sees 8 5 2 Digital Output Interface Connectors for Camera 8 5 3 Camera Link ehh hh e ehem emet 9 5 4 Input and output nen 11 5 4 1 Trigger input aa
6. Point Blue E 0 to 1023 F Shading correction pixel gain and pixel black correction 0 Off Bypass 1 Select shading SDC Param lt CR gt lt LF gt correction mode SDC lt CR gt lt LF gt S y 2 User area flat shading correction store to user Run shading atea 2 correction store SDR Param lt CR gt lt LF gt Store in user setting 1 Run color shading to user area correction store to user area O Shading correction has not been finished yet 1 Succeeded Inquire the status 2 Error1 image was too 3 shading SDS lt CR gt lt LF gt bright correction 3 Error2 image was too dark 4 Error3 Timeout error occurred Select pixels PGC Param lt CR gt lt LF 0 Off Bypass correction mode PGC lt CR gt lt LF gt 2 User area MER O Run correction 5 PGR Param lt CR gt lt LF store to user area 5 correction store Store in user setting gt 1 Run flat correction store to user area to user area O Pixel gain correction has not been finished yet tne steps e e was too 6 lafter pixel gain PGS lt CR gt lt LF gt due 5 correction 3 Error2 s too bright n has no 4 Error3 Timeout error occurred 37 LT 400CL an See the possibilities Select pixel black correction mode PBC Param lt CR gt lt LF gt PBC lt CR gt lt LF gt 0 Off Bypass 1 Factory
7. Test pattern gen Color bar gray 1 2 and white 890 LSB Communication interface Via Camera Link connector or RS 232C Hirose 12 pin connector Baud rate 9600bps 19200bps 38400bps 57600bps 115200bps Camera Link and Hirose 12P cannot be used at the same time Power DC 12V 10 to 24V 10 Typical 450mA No shutter internal lens cap on Max 480mA No shutter internal at saturation level Note Use a power supply with more than 3A current Lens mount LT 400CL M52 M52 lens mount Standard LT 400CL F Nikon F Mount Factory option Maximum allowed rear protrusion on lenses 13 mm Flange back distance M52 mount Nikon F Mount 46 5mm tolerance 0 0 05mm Optical axis Center 0 1mm Max Operating temperature 5 C to 45 C 20 to 80 non condensing Humidity Storage temperature 25 C to 60 C 20 to 80 non condensing 55 LT 400CL Ey See the possibilities humidity Vibration 3G 20Hz to 200Hz XYZ direction Shock 50G CISPR Pub 22 EN55022 Emission CISPR Pub 24 Immunity Regulation IEC61000 4 2 Conforming to Level 4 Note 1 FCC Part15 Class B RoHS 90 W x 90 H x 90 D mm without connector and lens mount Dimensions protrusion Weight 830 Camedia Camera Link 110226 1A10PL x2 Hirose 12 Pin HR10A 10R 12PB 71 Note1 This specification can be satisfied when the recommended connector and cable a
8. 43 8 23 Command Run pixel black correction and store to user area 43 8 24 Command PBS Inquire the status of after pixel black correction 44 8 25 Command PER Programmable exposure 44 8 26 Command PEG Programmable exposure Green 44 8 27 Command Programmable exposure 44 8 28 Command PGC Pixel gain correction nennen 44 8 29 Command PGR Run pixel gain correction and store in user 45 8 30 Command PGS Inquire the status after pixel gain 45 8 31 Command SDC Select shading correction 45 8 32 Command SDR Run shading correction 45 8 33 Command 505 Request status after executing shading correction command 47 8 34 Commands SGR SGG SGB Gain Low 47 8 35 Command SRO Sensor read es eee ehe ehe ehh enne 47 8 36 Command TG Trigger eoe eee eee ere re ere ree eere rere pee rere rers 47 8 37 Command TI Trigger input ccc cee cce cece ence ence eect ee ehe ese ehe enne 47 8 38 Com
9. 8 8 LT 400CL Ey See the possibilities Command ARST Auto reset mode In the no shutter and external trigger mode if the trigger is input after a long time interruption more than 52msec the over exposed signal during the trigger interruption is output after the first trigger In this case if ARST mode is ON LAVL DVAL and video signal are not output during the trigger interruption and LAVL DVAL and video signal are output after the second trigger input In the shutter select mode the video signal is output with setting exposure time after the first trigger regardless of ASRT mode is On or OFF This function is OFF as the default setting ARST O OFF 1 ON Command AW Activate One push Auto White Balance AWB Gain By sending this command via the serial communication the gain based One Push AWB function is activated This function can also be initiated by pressing the rear panel button During this time the rear panel LED will show orange This function operates in two steps First the Red to Green channel difference and the Blue to Green channel difference is calculated separately Then the gain of the Blue and Red channel is automatically adjusted to obtain the same output level on all three channels Settings 0 activate automatic process Applicable modes All Associated functions Command WB WB 0 Rear panel One push WB button Important Note e When color temperature of used illumination exceeds the range of a
10. TxCIk Clock for CL 6 19 TxOUT3 Data out 7 20 SerTC RxD 8 21 SerTFG TxD LVDS Serial Control 9 22 CC1 Trigger Trigger 10 23 CC2 Reserved 11 24 N C 12 25 N C 13 26 Shield GND LT 400CL Connector 2 Used only for 3 x 10 Bit output Pin No In Out Name Note 1 14 Shield GND 2 15 TxOUTO 3 16 TxOUT1 Data out 4 17 TxOUT2 5 18 TxCIk Clock for CL 6 19 TxOUT3 Data out 7 20 N C 8 21 N C 9 22 N C 10 23 11 24 12 25 13 26 Shield GND The LT 400CL follows the Camera Link standard in all respects Please refer to the Camera Link version 1 1 specifications for detailed information on bit assignments of 24 bit RGB and 30 bit bit output 5 3 Camera Link output RD9 RDO Channel Camera Data RD9 MSB RDO LSB GD9 GDO G Channel Camera Data GD9 MSB GDO LSB BD9 BDO B Channel Camera Data BD9 MSB BDO LSB x Not in use LT 400CL Ry See the possibilities Port Signal 24bit Output 30bit Output ConnectorlPin Name Port Port A1 Port A2 Port A3 Port A4 Port A5 Port A6 Port A7 Port BO Port B1 Port B2 Port B3 Port B4 Port B5 Port B6 Port B7 Port CO Port C1 Port C2 Port C3 Port C4 Port C5 Port C6 Port C7 Port DO Port D1 Port D2 Port D3 Port D4 Port D5 Port D6 Port D7 Port EO Port E1 Port E2
11. See the possibilities LT 400CL 3CMOS High Speed Color Line Scan Camera Document Version Ver 1 0 LT 400CL Ver 1 0 June2010 1011E 0909 LT 400CL Ry See the possibilities Notice The material contained in this manual consists of information that is proprietary to JAI Ltd Japan and may only be used by the purchasers of the product JAI Ltd Japan makes no warranty for the use of its product and assumes no responsibility for any errors which may appear or for damages resulting from the use of the information contained herein JAI Ltd Japan reserves the right to make changes without notice Company and product names mentioned in this manual are trademarks or registered trademarks of their respective owners Warranty For information about the warranty please contact your factory representative Certifications CE compliance As defined by the Directive 2004 108 EC of the European Parliament and of the Council EMC Electromagnetic compatibility JAI Ltd Japan declares that LT 400CL complies with the following provisions applying to its standards CISPR Pub 22 Emission CISPR Pub 24 Immunity IEC61000 4 2 Conforming Level 4 Electrostatic discharge immunity test FCC This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residenti
12. 1 896 clk IM 4095 APO B16 APO 4 Fig 36 Shutter select mode with internal line rate generator and individual exposure 26 LT 400CL EEN is output to the channel having the longest exposure value Exposure R Exposure G ouod Exposure B 896 clk 896 clk _ wa c NE X __ DVAL Data Fig 37 X Shutter select mode Binning Internal EN EEN is output to the channel having the longest exp sure value PpxueR cores _ 896 clk _ 896 clk z 5 5 E 2 lt X e lt lt e 5 gt 2 E E E 25 i 1 e Dta IU 4 Fig 38 Shutter select mode Sub sampling and Window Internal 27 LT 400CL Ey See the possibilities 6 4 4 Shutter select mode with external trigger This mode allows the user to have full control of the exposure
13. 60 90 1 28 2 36 3 54 70 4 M3 depth3 5 dis 90 _ 6 3 2 76 deptho 14 0 28 3 54 0 25 fe e 2 25 215 2 2 2 30 012 4 x6 depth3 5 depthO 14 4 M3 depth5 depth0 20 Outside size tolerance 0 3mm Fig 46 External Appearance and Dimensions Nikon F mount 53 LT 400CL Ry See the possibilities 11 Specifications 11 1 Typical data Scanning system Line Scan Synchronization Internal 3 prism mounted custom CMOS sensors Effective pixels 4096 pixels per sensor Pixel Size 7 0um x 7 0um Effective image length 28 672 mm Image Sensor Pixel clock 80 00 MHz Full resolution Binning 4944clk Internal trigger Sub sampling Windowing 2921clk Internal trigger TUA Full resolution Binning 61 8ys Internal trigger Sub sampling Windowing 36 51ys Internal trigger Line rate adjustable Adjustable range 61 8ys to 15 02ms range Adjustment increments 12 5ns Full resolution Binning 16 18KHz Internal trigger Line frequency Sub sampling Windowing 27 38KHZ Internal trigger Sensitivity of sensor Radiometric 64V uJ cm Sensitivity on sensor 162 lux Standard 7800K Gain Low Shutter OFF 100 video S N 55dB Green channel Gain OdB Video output Digital 8 Bit x 3 or 10 Bit x 3 Camera link Full resolution Binning digital accumulation Sub sampling Win
14. Binning Internal wo EN _ X DAL MEE 0B31 Fig 32 No shutter Sub sampling and Window Internal 23 LT 400CL Ey See the possibilities 6 4 2 No shutter mode with external trigger In this mode the exposure time is directly proportional to the line rate The line rate is generated externally by a trigger signal This mode is used when an external trigger signal is available e g from an encoder and the scan rate can be controlled by this signal The camera can accept an external trigger through the Camera Link connector or though the 12 pin Hirose connector To use this mode Set function Trigger mode No shutterTR 0 Trigger origin external TG 1 Trigger input TI 0 or 1 Important note e When the one push white balance has been initiated and the rear panel LED shows orange the camera must receive continuous external trigger pulses corresponding to the frequency and duty cycle used in the application e Minimum trigger interval Scan mode Trigger input via Minimum interval us Full Binning Camera link 62 3 Hirose 12 pin 66 8 Sub sampling windowing Camera link 37 0 Hirose 12 pin 41 5 e Minimum trigger pulse width Trigger input via Minimum trigger pulse width Camera link 500 ns Hirose 12 pin 5
15. Connector Hirose Type HR10A 10R 12PB 71 Hirose Male Use the part number HR10A 10P 125 for the cable side Pin No Signal Remarks 1 GND 2 DC in 12V to 24V 3 GND Reserved Do not connect e 6 RxD in RS 232C d 7 TxD out RS 232C 9 8 GND 9 XEEN out 10 Trigger in Tl 1 or set TI 0 for input via CL 11 NC 12 GND Fig 4 12 pin Hirose connector 5 2 Digital Output Interface Connectors for Camera Link Type 26P MRD Connector 110226 1A10PL 13 1 26 4 1 Fig 5 Camera Link connector This camera can be used with all Camera Link products that comply with the AIA Camera Link standard Cables transmission systems and frame grabbers acquisition boards that do not comply with the Camera Link standard may work with this camera but JAl Camera Solutions cannot be held responsible for loss in performance or damage of equipment including the camera Recommended cable assembly 14B26 SZLB XXX OLC where XXX is the length of cable The applicable cable length is 0 5m to 10m 14B26 SZ3B XXX 03V small diameter type and 14B26 SZ3B XXX 04C high flexion type can used but the length will be limited Connector 1 24Bit 30 Bit Pin No In Out Name Note 1 14 Shield GND 2 15 TxOUTO 3 16 TxOUT1 Data out 4 17 TxOUT2 5 18
16. Port E3 Port E4 Port E5 Port E6 Port E7 NINININI NINI NI BOT BO NO BO NI NI N X XXX X OX XX OX OX 10 LT 400CL 5 4 Input and output circuits 5 4 1 Trigger input The External Trigger signal can be applied either through the KRE Camera Link connector or at pin 10 of the 12 pin Hirose connector The command to change this setting is TI Trigger Input 0 for Camera Link connector factory default and d for 12 pin Hirose connector The input via the e 12 pin Hirose connector is AC Fig 6 Trigger input 12 pin Hirose coupled To allow long pulses which may be required when using the Pulse Width Control PWC trigger mode the input circuit is designed as a flip flop circuit The leading and trailing edges of the trigger pulse activate the circuit The trigger input polarity can be changed by the command TP At the 12 pin Hirose connector the External Trigger input is 4V 2V TTL It can be changed to 75 ohm termination by a DIP switch setting SW 1 located on the rear panel 10 12 IC 5 4 2 EEN XEEN output Exposure Enable This output corresponds to the exposure accumulation time of the camera It works wit
17. Transmit the following to have a command list HP lt CR gt lt LF gt The camera answers A list with all commands and possible settings 33 LT 400CL Invalid parameters sent to camera 99 is an invalid parameter SH 99 lt CR gt lt LF gt The camera answers 02 Bad Parameters lt CR gt lt LF gt To see firmware number VN lt CR gt lt LF gt To see camera ID It shows the manufacturing lot number ID lt CR gt lt LF gt E See the possibilities 7 2 LT 400CL Command list Command Name Format Parameter Remarks A General settings and useful commands EB Param lt CR gt lt LF gt _ 1 Echo Back EB lt CR gt lt LF gt O Echo off 1 Echo on Off at power up MN Actual setting Request jene Help prcCR gt lt LF gt Command list Request 3 digits lems 3 100 Version 1 00 3 digits 2 n E e 8 100 Version 1 00 6 Camera ID Request ID CR LF max 10 characters Model Maie MD lt CR gt lt LF gt max 10 characters Request User can save and 8 User ID load free text 16 or UD lt CR gt lt LF gt less characters B Trigger mode O No shutter 1 Trigger Mode 1 Shutter select 2 Pulse width control 2 Trigger Origin TG Param lt CR gt lt LF gt 0 Internal TG 0 is available TG lt CR gt lt LF gt 1 External when TR 0 or TR 1 3 Taser instit Tl Param lt CR gt lt LF gt
18. Slope Master Tracking If the Communication window does not open click Help in the Download menu of Camera Control Tool and click Communication 6 T 400CL Gamera Control Tool Version 1 00 File F Settings S Line Correction L 377 Trigger Mode About this application Trigger Origin internal Polarity Active Low Gain 9 3 Connect a camera If the frame grabber board is already installed in the connected PC it will appear in the Category box in the Communication port pane Click it if it is the appropriate one If the frame grabber board is not used select the COM port to which the camera is connected and click OK After the connection is established the RED Off line icon changes to GREEN and the RED bar in the bottom changes to GREEN 49 LT 400CL EU See the possibilities 9 4 Camera control window When the connection between camera and PC is completed the camera control tool shows the current camera settings T 400CL Camera Control Tool Version 1 00 File F Settings S Line Correction L Help H Trigger Mode White Balance Trigger Mode Input Camera Link Trigger Origin Internal v Polarity Active Low Sain Auto Reset Mode or z flow Line Rate Exposure Gain Level Mode Line Rate 4344 Auto LR Set White
19. achieve this Note2 The rear protrusion of lens should be within 13mm for both M52 mount lens and Nikon F mount lens Note3 The depth of mounting hole is 5mm 0 2mm If the longer screws than 5 2mm are used they may damage the circuit board inside LT 400CL 4 2 Rear Panel and indicators GRear panel indicator LED DIGITAL 170 1 POWER TRIG Push button DC IN ge A TRIG GDIP switch cog DIGITAL 1 0 2 Fig 2 Rear panel LED There is a multi color LED on the rear panel of the camera It has the following functions Steady Operating but not receiving external trigger input Green Flashing Operating and receiving external trigger input Note that the flashing frequency does not correspond to the frequency of the trigger signal Note In no shutter internal and shutter select internal modes this LED does not flash Orange Initializing or executing one push white balance Q Push button This push button is used for gain white balance DIP switch SW 1 function Settings No Function ON OFF 1 Serial communication Hirose 12Pin Camera link CC1 Termination of External trigger 750 TTL Note Factory default settings for both functions are OFF ON Serial Communication ___ Fig 3 DIP switch LT 400CL Ry See the possibilities 5 Input and output connectors signals and circuits 5 1 12
20. and continues according to the screen instructions 9 2 Open the Control Tool Connect the camera to the PC on which the software is installed and set the power ON Then select programs in the Windows start menu select JAI A S and click LT 400CL control tool LT 400CL Camera Control Tool and Communication windows will open Communication 1V T 400CL Camera Control Tool Version 1 00 Line Status File E Settings S Line Correction L Help H Offline Trigger Mode Gain White Balance ae Red Blue Trigger Origin Internal Polarity Active Low gt 053 Auto Reset Mode gt flow flow gt flow Gain Level Mode Individual 2 SE Input Camera Link Communication Port Caecoy Port Name COM1 Line Rate Exposure Files Line Rate 4844 Auto LR Set White Balance Mode Write To File Ss Read File Manusl One push AWB AWB by Gain 5180045 Ref Current Area Factory And User Setting In Camera Programmable Exposure Noise Reduct Dff 2 Red Green Blue Get Area Factory Data Load Black actoyData d Blsck Level Mode ControlTool Message r amp Mester Res 5 LR 4685 Write To File sali Image Format Knee Clear Off x Bit 4bits SensorReadout Off Red Binning Off Test Pattern jor Point o n
21. and individual exposure 28 LT 400CL TG EEN LVAL DVAL Data Fig 40 Shutter select mode Binning External EEN Exposure R Exposure G Exposure LVAL Fig 41 Shutter select Sub sampling and Window External 29 LT 400CL Ry See the possibilities 6 4 5 Pulse Width Control PWC mode In this mode the user has full control of both the line rate and the exposure time of each line via the External Trigger input At the rising edge of the External Trigger signal the exposure is initiated and at the falling edge the exposure is terminated and read out The camera can accept an external trigger through the Camera Link connector or through the 12 pin Hirose connector To use this mode Set function Trigger mode PWC TR 2 Important Note e The minimum trigger interval Scan mode Trigger input via Minimum interval us Full Binning Camera link Exposure time 62 3 Hirose 12 pin Exposure time 66 8 Sub sampling windowing Camera link Exposure time 37 0 Hirose 12 pin Exposure time 41 5 e The minimum trigger pulse width Trigger input via Minimum trigger pulse width Camera link 67 575 Hirose 12 pin 67 575 e One push white balance by gain setting only e When the one push white balance has been initiated and the rear panel LED shows orange the camera must receive continuous external trigger pulses corresponding
22. area 2 User area Run pixel black 8 correction store to user area PBR Param lt CR gt lt LF gt O Run pixel black correction store to user area Store in user setting Inquire the status 9 after pixel black correction PBS lt CR gt lt LF gt O Pixel black correction has not been funished yet 1 Succeeded 2 Error image was too bright 3 Error2 image was too dark 4 Error3 Timeout error occurred G Saving and loading data in EEPROM Load Settings 1 from Camera EEPROM LD Param CR LF O Factory area 1 User area1 2 User area2 Save Settings 2 to Camera EEPROM SA Param lt CR gt lt LF gt 1 User area1 2 User area2 Note the parameter 0 is not allowed Latest used DATA AREA will become default at next power up EEPROM Current Area No Request EA lt CR gt lt LF gt O Factory area 1 User areal 2 User area2 The camera returns latest used DATA AREA Note To avoid malfunction do not attempt writing commands not shown in the above list 38 8 for 8 2 8 3 8 4 LT 400CL Functions listed alphabetically by command acronyms Command AH One push AWB shutter This command controls a white balance by setting an appropriate shutter speed each channel Settings 0 to initiate Applicable modes 1 Shutter select mode Associated functions Commands WB EI PER PEG PEB Important N
23. function is available for all modes Command BL Master Black Level This command is a global black level adjustment for all channels The adjustable range for master black is OLSB to 64 16 LSB The number in parenthesis is valid for 24 bit output Settings 0 to 127 Associated functions Command BLR black level for the red channel Command BLB black level for the blue channel Commands BLR and BLB Black level red and black level blue In conjunction with Command BL these commands allow individual setting of the black level in all channels Settings 64 to 63 Associated functions Command BL Refer to chapter 6 3 6 for further details Command BLM Black level mode Select the master tracking mode or the individual mode Settings O Master tracking 1 Individual Command EI Interlocked R and B exposure with G When this function enabled interlocked exposure time for R and B channels is interlocked with that of G channel The Red and Blue channels will track the Green channel proportionally thus maintaining white balance settings When this is OFF all channels are adjusted independently Settings 0 OFF independent R and B settings 1 ON R and B channels interlocked with G channel 41 8 16 LT 400CL Ry See the possibilities Applicable modes 1 Shutter select mode only Associated functions Commands PER PEG PEB Programmable Exposure Refer to 6 3 2 Electronic shutter Exposure Comm
24. to the frequency and duty cycle used in the application Fig 42 Pulse Width Control mode 30 LT 400CL LVAL 851 128 clk _ Fig 43 mode Binning EEN TEE TREE NN NN 851 clk 128 I a i Fig 44 PWC mode Sub sampling and Window 31 LT 400CL E See the possibilities 6 4 6 Compatibility of trigger modes and functions Trigger Image output format Gain Offset Mode Origin FUN Binning Sub Windowing Gain Low Gain High Individual resolution sampling tracking Internal No Shutter External Shutter Internal select External PWC External Trigger Shading correction AWB Mode Origin FLAT COLOR Shutter Test pattern Auto Line Rate Internal No Shutter External Shutter Internal select External PWC External Note They can be used together They can be used together but when the compensation data is acquiring or test signal is displaying the trigger pulse should be continuously input X They cannot be used together 32 LT 400CL 7 Configuring the camera All the modes and functions of this camera are controlled by serial communication via the Camera Link connector or via RS 232C on the Hirose 12 pin connector Chapter 7
25. tracking mode Gain Low mode Reference value OdB Master gain control range OdB to 8dB R B Adjusting range 4dB to 14dB at the master gain setting value Gain High mode Reference value 6dB Master gain control range OdB to 8dB R B Adjusting range 4dB to 14dB at the master gain setting value SGR 0 SGR 1 GM 0 GAIN LOW 566 0 GAIN HIGH 566 1 ee SGB 0 SGB 1 GAB ne wi du 1400 GA GAG GAB 14dB j 1400 800 AdB BdB 1 J 6dB 0 2 i OdB 400 Fig 13 Master gain mode with Gain Low and High LT 400CL Ey See the possibilities 2 Individual gain mode Gain Low mode Reference value OdB R G B Adjusting range 4dB to 14dB at the master gain setting value Gain High mode Reference value 6dB R G B Adjusting range 4dB to 14dB at the master gain setting value GM 1 SGR 0 IERI SGG 0 E E GAIN LOW Pee GAIN HIGH scp 4 22 GAB pros Vu GAR GAG GAB 14dB a 1400 6dB 5 OdB MEM XE MS T 400 7 4 400 Fig 14 Individual gain mode with gain low and gain high 6 3 6 Setup level This function adjusts the setup level black This depends on the gain mode Gain Set at Master tracking mode Adjusting range Master green OLSB to 64LSB 16LSB Red 64 16 LSB to 64 16 LSB Blue 64 16 LSB to 64 16 LSB
26. valid for the Shutter select mode Settings 4800 to 1194752 clocks 60 us to 14 9ms in 12 5ns steps Applicable mode 1 Shutter select mode Associated functions and exposure interlocked with Command PEB Programmable exposure Blue This command allows individual setting of the exposure time of the Blue channel It is only valid for the Shutter select mode Settings 4800 to 1194752 clocks 60 us to 14 9 ms in 12 5ns steps Applicable mode 1 Shutter select mode Associated functions and exposure interlocked with Refer to chapter 6 3 2 Electronic shutter Exposure for further details Command PGC Pixel gain correction mode This command enables or disables the pixel gain flat field correction function which compensates for Pixel Response Non Uniformity PRNU for individual pixels Settings 0 Off Bypass 1 Factory Setting default 2 User area Associated functions Command PGR Applicable modes 44 8 29 8 30 8 31 8 32 LT 400CL Command PGR Run pixel gain correction and store in user area This command initiates the flat field correction function and stores the settings in the user area Settings 0 Run PRNU correction and store to user area 1 Run flat correction and store to user area Associated functions Command PGC must be set to 2 Important note e The image sensors must not be saturated when executing this function e When executing this fun
27. 1 shows the complete list of ASCII commands Chapter 7 2 describes the commands in detail in alphabetical order sorted by the command acronym 7 1 RS 232C control All configuration of the LT 400CL camera is done via the RS 232C port on the 12 pin HR connector or via Camera Link The camera can be set up from a PC running terminal emulator software or using JAl s camera control software Below is the description of the ASCII based short command protocol Communication setting 1 CD 4 Baud Rate 9600 bps L 6DSR Data Length 8 bit PAMERA TXD 2 mu Deon Start Bit 1 bit GND 5Gnp PCCOM 5 7 875 Stop Bit 1 bit RS 232C cable FIRE Parity None 9 CI Xon Xoff Control None Note Baud rate is available for 9600bps 19200bps 38400bps 57600bps and 115200bps Protocol Transmit setting to camera NN Parameter lt CR gt lt LF gt NN is any kind of command Capital or small letters The camera answers COMPLETE lt CR gt lt LF gt To have all communication visible on the emulator screen start with EB 1 lt CR gt lt LF gt The camera answers COMPLETE lt CR gt lt LF gt Transmit request command to camera NN lt CR gt lt LF gt is any kind of command The camera answers NN Parameter lt CR gt lt LF gt Transmit the following to have the camera actual setting ST lt CR gt lt LF gt The camera answers A complete list of the current settings
28. 6 Gain Low High SGB Param lt CR gt lt LF gt 0 Low Blue SGB lt CR gt lt LF gt 1 High 3 GM Param lt CR gt lt LF gt 0 Master tracking eee GM lt CR gt lt LF gt 1 Individual 0 Manual One push AWB WB Param lt CR gt lt LF gt 1 4000 8 White Balance WB lt CR gt lt LF gt 2 4600K 3 5600K Activate 9 One push AWB AW Param CR LF 0 Activate one push AWB lt One of following values will be replied from the camera gt has not been finished yet Inquire the status 1 Succeeded 10 after AWRS lt CR gt lt LF gt 2 Error1 G image was too AWB bright 3 Error2 G image was too dark 4 Error3 Timeout error occurred NR Param lt CR gt lt LF gt O off 11 Noise reduction NR CR LF Black Level BL Param CR LF 12 Master BL lt CR gt lt LF gt BLR Param lt CR gt lt LF gt 13 Black Level Red BLR lt CR gt lt LF gt 64 to 63 Black Level BLB Param lt CR gt lt LF gt 14 Blue BLB lt CR gt lt LF gt id BLM Param lt CR gt lt LF gt 0 Master Tracking fo Blech Fever MOSS 1 Individual KN Param lt CR gt lt LF gt B 16 Knee On Off KN lt CR gt lt LF gt 0 0ff 1 17 Knee Slope Red KSR Param lt CR gt lt LF gt 0 to 65535 36 LT 400CL KSR CR LF oui o TL 19 Knee Slope Blue 0 to 65535 20 Knee Point Red p D DE 0 to 1023 Te TT 22
29. 7 LT 400CL 4 Set command SDR to 1 to initiate shading correction 5 desired set command to 0 to activate flat field pixel gain correction to correct for pixel response non uniformity 6 Again set SDR 1 after running the flat field pixel gain correction Refer to chapter 6 3 10 Shading correction for further details Command SDS Request status after executing shading correction command This command returns the status of the shading correction function with the following parameters O Shading correction not completed yet 1 Successful 2 Error 1 Image was too bright 3 Error 2 Image was too dark 4 Error 3 Timeout occurred Commands SGR SGG SGB Gain Low High These commands select the reference level low or high for red green and blue Settings 0 Low 1 High Refer to chapter 6 3 5 Gain control for further details Command SRO Sensor read out This command selects output format Settings 0 OFF 1 Sub sampling 2 Windowing Refer to chapter 6 3 12 Sub sampling and 6 3 13 Windowing for how they work Command TG Trigger Origin Selects whether an external signal or an internal clock generator is used as a trigger source Settings O Internal clock generator 1 External signal Associated commands TI TP Command TI Trigger input Selects whether the External Trigger input signal is taken from the Camera Link connector or from the 12 pin Hirose connector Settings Link co
30. Balance Mode Manual One push AWB AWB by Gain 518004 me 0 Programmable Exposure Noise Reduct Off X Green Blue Black Black Level Mode Master Tracking Master Red Blue Black 0 0 0 Image Format Knee i i Off Bit Alloc 24bits SensorReadout ot On Off z Red Green Blue Binning Test Pattern Off Point oz oc oz Slope 9 5 Menu 9 5 1 File menu Open Transfer the setting parameters in HDD or other memory devices to the camera The extension is cam Save as Store the setting parameters to HDD or other memory devices The extension is cam Exit Finish the software 9 5 2 Settings menu Reload Read the setting parameters from RAM area of the camera Reload Load settings Read the setting parameters from L EEPROM area of the camera Load settings Store settings Select from Factory User 1 or User 2 Store settings Store the parameters in the EEPROM area of the camera Select from User 1 or User 2 50 9 5 3 LT 400CL Line Correction menu Line Correction Uk Gammat Shading Correctibn Pixel Gain Correction Pixel Black Correction 9 5 4 Shading Correction Select correction settings Off Bypass R Factory User ading Re calibratg Pixel Black Correction Select correction settings Off Bypass Factory User Re calibratg Help menu About this application Communication
31. Click Line Correction menu and a drop down menu will open The setting window for shading pixel gain and pixel black can be opened Pixel Gain Correction Select correction settings Re calibrat PRN Display camera software version model name firmware version and camera ID About LT 400CL Camera Control Tool g Camera Data Model Name LT 400CL Camera Control Tool Version 1 00 Copyright 2009 2010 Ltd Japan http www jaicom Camera ID FPGA Version e Enable To Edit User ID Firmware Version UserID Help Help File X View Help File 51 LT 400CL Ry See the possibilities 10 External appearance and Dimensions 4 M3 depthb5 depth0 20 V m D 25 5 4 depth3 5 0 28 00 depth 14 325 60 1 28 0 36 4 M3 depth3 5 Tz 90 26 3 depth 14 0 28 3 54 0 25 BE ge 88 y X 43 x6 depth W52 M epth3 3 lount depth0 14 32 5 _ 60 1 28 2 36 55 0 28 1 00 Outside size tolerance 0 3mm Unit mm inch 4 03 depthb depth0 20 Fig 45 External appearance and dimensions M52 mount 52 30 012 4 depth3 5 LT 400CL 4 M3 depths depth0 14 32 5
32. Figures in are for 8 bits output Gain Set at Individual mode Adjusting range Red OLSB to 64 16 LSB Green OLSB to 64 16 LSB Blue OLSB to 64 16 LSB Figures in are for 8 bits output Note Red green and blue can be adjusted individually 16 LT 400CL 6 3 7 Knee correction If the relationship of input and output is linear 1 1 the output level will be clipped at a certain input level and cannot reproduce the details in the clipped area The knee compensation circuit can keep the linear relationship until the knee point while after the knee point the output signal is compressed to reproduce the details This compression area can be set by a knee slope The knee point and knee slope can be set individually Function Length Variable type Setting range Knee Point 10bit Unsigned integer OLSB 1023LSB Knee Slope 16bit Unsigned fixed point 0001h x0 000015 FFFFh x1 0000 The following drawing shows the characteristics of Knee Point 890LSB and Knee Slope 1000h 1279 A 1023 P 068 Soc cesi redet Juega BS Knee Point 37Ah 890 Knee Slope 1000h 1 16 i In this case Maximum Value is 968 LSB Output Camera Link Data Level o gt 0 102 2848 4095 Input Data Level Fig 15 Knee and knee slope characteristics 6 3 8 Pixel Response Non Uniformity correction PRNU Pixel Response Non Uniformity
33. Q Camera Link sser np TI lt CR gt lt LF gt 1 Hirose12pin TP Param lt CR gt lt LF gt 0 Active Low ul MTS 1 Active High lt gt lt _ 5 Auto Reset Mode gt c ARST lt CR gt lt LF gt 34 LT 400CL C Line Rate Exposure Line Rate LR Param lt CR gt lt LF gt LR lt CR gt lt LF gt Full resolution 4944 to 1201920 clocks Sub sampling window 2921 to 597376 clocks 1 clock is 12 5ns Available when TG 0 One push auto line O Activate one push auto 2 AR Param lt CR gt lt LF gt Available when TG 0 rate set line rate set Auto line rate AL Param CR LF 2 reference level AL lt CR gt lt LF gt 98 AL TORI RB Exposure El Param lt CR gt lt LF gt 0 0 independent interlocked with G El lt CR gt lt LF gt 1 On interlocked Ava itane when Ted Programmable PER Param lt CR gt lt LF gt 4800 to 1194752clocks E 5 Exposure Red PER lt CR gt lt LF gt 1 clock is 12 5ns TRA Programmable LES Param SEE 193752cl0ck 6 Exposure Green 1 clock is 12 5ns PEG lt CR gt lt LF gt Programmable PEB Param lt CR gt lt LF gt 4800 to 1194752clocks 7 Exposure Blue _ PEB lt CR gt lt LF gt 1 clock is 12 5ns Available when TRed pice pus ANP Er ram Nate nepus ON aible when TREI shutter shutter Inquire the stat
34. TG UM 14960 K i 10430 LVAL DVAL Data Fig 33 No shutter mode with external trigger 24 LT 400CL M 1 TN 4471 el 1496CLK EEN 10430 Fig 34 No shutter mode Binning External UM 1496CLK LSSS EEN i 10430 K LVAL Fig 35 No shutter mode Sub sampling and Window External 25 LT 400CL Ey See the possibilities 6 4 3 Shutter select mode with internal trigger This mode allows the user to have full control of the line rate and the exposure time individually by programming separate timing generators Subsequently the camera does not accept an external trigger signal in this mode To use this mode Set function Trigger mode Shutter select 1 Line rate LR 61 8us to 15 02ms Trigger origin internal TG 0 Individual R and B exposure El O individual El 1 tracking with Programmable exposure PER PEG PEB 4800 to 1194752 60us to 14 9ms 12 5ns steps Important note f using individual exposure the EEN signal represents the channel with the longest exposure time e The maximum exposure time is the line rate setting e For one push white balance both shutter gain AH and gain AW are effective a i EEN is output to the channel having the longest exposure value BgsueR G BpoueB 8
35. a dddo dda dd ddd ddiad ddd us 11 5 4 2 EEN XEEN output Exposure Enable sssessssesssessssosssesssscssecosssossecsseeo 11 6 FUNCtIONS and sses ecce endet dette hee 12 6 1 1 aaia M 12 6 2 Sensor layout and outp t timing erre i 12 6 3 Key TUNCTIONS 13 6 31 Line rate Command LR eese otn rta cede 13 6 3 2 Electronic shutter Exposure Command PER PEG 13 6 3 3 EEN Exposure Enable function cece cece cence eme eene 14 65354 White balance eei e s 14 6 3 5 er T 15 6 3 6 Setup level oce E E EEEE EEEE a eie 16 6 3 7 Knee COFTOCUOD 17 6 3 8 Pixel Response Non Uniformity 17 6 3 9 DSNU Dark Signal Non Uniformity 18 6 3 10 Shading correction eese ehe nhe e emet ente 19 63 RED DEEP 20 6 3 12 Sub samplinig 20 6 3 13 WindoWIng i gu kde due 20 6 314 Test pattern Senerator e e E sss Y e Peu de ed edes 20 6 4 Operation Modes 22 6 4 1 mode with internal 1
36. ach RGB channel Flat shading compensation Color shading compensation One push white balance Knee correction Noise reduction circuit ON OFF Pixel binning Sub sampling readout Windowing readout Test pattern generator color bar gray white for set up and troubleshooting Electronic shutter for shutter selected modes Lens mount is M52 as a standard and F mount as a factory option DC input range from 12 V to 24V Short ASCII commands for set up via RS 232 or Camera Link Setup by Windows XP software LT 400CL Ry See the possibilities 4 Locations and functions 4 1 Main unit Fig 1 Location of external features Camera Link base connector 1 Note1 Camera Link medium connector 2 Note1 12 pin Hirose connector for DC 12 External trigger and RS 232C LED indicator Orange steady Initializing or one push operation Green steady Operating but not receiving external trigger Green flashing Operating and receiving external trigger One push auto white balance button SW 1 refer to chapter 4 2 M52 lens mount Note 2 Nikon F Mount lens mount Note2 Mounting holes 8 x M3 depth 5mm Note3 JA CN Note1 When a Camera Link cable is connected to the camera please do not excessively tighten screws by using driver The Camera Link receptacle on the camera might be damaged For security the strength to tighten screws is less than 0 291 Newton Meter Nm Tightenine by hand is sufficient in order to
37. al installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Warning Changes or modifications to this unit not expressly approved by the party responsible for FCC compliance could void the user s authority to operate the equipment LT 400CL Supplement The following statement is related to the regulation on Measures for the Administration of the control of Pollution by Electronic Information Products known as China RoHS The table shows contained Hazardous Substances in this camera mark shows that the environment frien dly use period of containe d Hazard ous Substances is 15 years BR ite SM ASMARNTREMREER RH WS 3587 os Re
38. and PER PEG PEB for further details Command Gain level master G channel Adjust the master gain or G channel gain in accordance with gain mode GM GM 0 Master tracking Adjust as master gain Adjusting range is 0 to 800 1 Individual gain Adjust for G channel Adjusting range is 400 to 1400 Commands GAR and GAB Red and blue gain levels In conjunction with the Command SGR SGG and SGB Gain Low or Gain High this function allows the individual setting of gain for all channels It is important to note that increasing the gain will lead to an increased noise level and reduced S N Ratio Settings 400 to 600 where 100 equals 188 0 400 to 1400 where 100 equals 1dB GM 1 Associated function Commands SGR SGG SGB GM Applicable modes All modes Refer to chapter 6 3 5 _ Gain control for further details Command GM Gain mode This command sets the master tracking mode or the individual mode GM 0 Master tracking GM 1 Individual mode Command KN Knee ON Off This command activated Knee correction function Settings O OFF 1 ON Commands KSR KSG and KSB Knee slope for R G and B See command KN for description of this function Settings 0 to 65535 Associated functions Command KN Commands KPR KPG and KPG Commands KPR KPG and KPG Knee point for R G and B See command KN for description of this function Settings 0 to 1023 Associated functions Command KN Commands KSR KSG and KSB Refer to c
39. ate is shorter than the exposure time the accumulation time is determined by the line rate This should be noted especially in external trigger mode LT 400CL Ey See the possibilities Line rate gt Exposure time Tri gger Line rate LR 20000 I nternal External Exposure R Exposure 22000 Exposure G Exposure B In this case although the expsore time is set at 22000 but the actual exposure time is limited by the line rate 20000 Fig 11 6 3 3 EEN Exposure Enable function This function outputs the timing for image accumulation in all operating modes except test pattern output The output can be through both the Hirose 12 pin and Camera Link connectors The polarity of this output is negative from the Hirose 12 pin connector and positive from the Camera Link connector These polarities cannot be changed Tri gger Internal External Exposure Exposure Exposure EEN represents with the longets exposure time among R G and B Fig 12 Exposure setting should be less the line rate EEN function 6 3 4 White balance In this function the green channel video level is used as the reference Red and blue channel levels are adjusted to match with that of the green channel There are two ways to adjust white balance one is the gain white balance and the other is the shutter white balance Rear panel White balance C
40. ction the exposure time and line rate should be the same as when the camera is operated in the application Refer to chapter 6 3 8 PRNU Pixel Response Non Uniformity correction for further details Command PGS Inquire the status after pixel gain correction This command returns the status of the pixel gain correction with the following parameters O Shading correction not completed yet 1 Successful 2 Error 1 Image was too bright 3 Error 2 Image was too dark 4 3 Timeout occurred Command SDC Select shading correction mode This function enables or disables the shading correction Settings 0 off Bypass 1 Factory setting default 2 User area Associated functions Command SDR Command SDR Run shading correction This function initiates automatic shading correction and stores the result to the user area This function should be used together with the flat field correction commands PGC and PGR There are two types of shading correction Individual R G and B channel correction and chromatic shading correction Settings O Run flat shading correction and store to user area 1 Run color shading correction and store to user area A Flat shading correction SDR 0 Shading is calculated and individually compensated for R G and B channels respectively The calculation is based on the average value of 8 consecutive pixels The maximum deviation that can be compensated is 20 of the highest signal leve
41. djustment proper white balance may not be obtained e The data can be stored in camera memory for use at next start up e This function can work on external trigger mode e The S N ratio of the output will change as a result of this function Refer to chapter 6 3 4 White balance for further details Command AWRS Inquire the status after one push AWB This command returns the status of the one push AWB function with the following parameters O Shading correction not completed yet 1 Successful 2 Error 1 Image was too bright 3 Error 2 Image was too dark 4 Error 3 Timeout occurred Command BA Bit Allocation This function lets the user select whether the video data is presented as 3 x 8 24 bit or 3 x 10 30 bit on the Camera Link output The internal processing in the camera is based on a 12 bit A D signal The 24 bit and 30 bit function removes the least significant bits from the 12 bit signal 40 8 9 LT 400CL Settings 0 24 bit 1 30 bit Applicable modes All Command BI Binning Horizontal only This function reduces the number of pixels to 256 without affecting the line rate Two adjacent pixels are combined at the output stage and read out as one pixel Sensitivity is doubled as a result of binning Refer to Chapter 6 3 11 Binning for how it works Settings 1 binning on O binning off Applicable modes Important Note e Setting data is stored in camera memory for use at next start up e This
42. dowing Video output format Q Master tracking mode Analog Gain Low OdB Master OdB to 8dB Red Green Blue 4dB to 14dB Analog Gain High 6dB Master OdB to 8dB Red Green Blue 4dB to 14dB Individual mode Analog Gain Low OdB Red Green Blue 4dB to 14dB Analog Gain High 6dB Red Green Blue 4dB to 14dB Gain range 54 LT 400CL Black level Master tracking mode Master Green Red Blue Individual mode Red Green Blue 0 to 127LSB 0 to 127LSB 64LSB against the master value White balance Adjustable range 4000K to 9000K Standard color temperature 7800K Knee control Knee point 0 to 1023 Knee slope x0 000015 to x1 0000 Flat field correction PRNU within 5 after correction at 100 output DSNU within 5 after correction at 0 output Shading correction 1 Flat shading correction 2 Color shading correction Electronic shutter Available for Shutter select mode Adjustable range 60ys to 14 9ms Adjustment increments 12 5ns 1 clk Operation mode No shutter Internal External trigger Shutter select Internal External trigger Pulse Width Control PWC Trigger input Hirose12 pin 4 0 2 0Vp p TTL Camera Link LVDS CC1 Possible to change Negative Logic or Positive Logic Sync output open termination Camera Link LVAL DVAL EEN Hirose 12 pin XEEN Negative logic 4 0 Vp p no termination
43. e Color shading correction compensates red and blue signals to match with green signal characteristics The following drawings show the concepts for flat and color shading corrections AA I Fig 21 Flat shading correction Fig 22 Color shading correction LT 400CL Ey See the possibilities 6 3 11 Binning In this mode a camera combines the charge collected in two adjacent pixels This halves the effective resolution to 2048 pixels but doubles the sensitivity The line rate is not affected by binning 1 2 3 4 5 6 7 8 9 as av as a an as Woy Y y Yy Y 8 S Fig 21 Binning reads out adjacent pixels at the same time 6 3 12 Sub sampling In this mode every two effective pixels are read out Accordingly the read out rate is doubled The FOV Field Of View is not changed versus full scan mode but the resolution becomes Hilo 4 5 DA 25 26 27 28 Fig 22 Sub sampling reads out every two pixels 6 3 13 Windowing In this mode only the effective 2048 pixels in the center portion can be read out and accordingly the readout rate is doubled FOV becomes half as compared to the full pixel read out 2048 pixels are a fixed number and cannot be varied by the user ns o o ae o o m BE
44. e downloaded from www jai com 59 LT 400CL RU See the possibilities Change History Month Year Revision Changes June 2010 1 0 New release 60 LT 400CL User s Record Camera type LT 400CL Revision Serial Firmware version For camera revision history please contact your local distributor User s Mode Settings User s Modifications Company and product names mentioned in this manual are trademarks or registered trademarks of their respective owners JAI A S cannot be held responsible for any technical or typographical errors and reserves the right to make changes to products and documentation without prior notification Europe Middle East amp Africa Asia Pacific Americas Phone 45 4457 8888 Phone 81 45 440 0154 Bb 45 4491 3252 Fax 81 45 440 0166 PR Visit our web site at www jai com See the possibilities 61
45. e sensor interface Each signal then is transmitted to processing circuits which manipulate in the necessary characteristics and output via the Camera Link interface The functions in the processing circuits are described in the following sections 6 2 Sensor layout and output timing The LT 400CL uses newly developed COMS sensors which have 4096 effective pixels Light received on photodiodes is converted to electronic signals and these signals are handled in a correlated double sampling circuit analog gain circuit and analog digital converter circuit After that digital signals are serialized and output those circuits are inside the sensor package CMOS sensors can provide higher rates and lower power consumption than CCDs of equivalent resolution d 1 Digital Processor Serializer Ttransfer data Cptical black Effective pixel Cptical bl ack 816 16 40 16 4944 Note Dummy pixels have photo diode CB Cptical Bl ack Pixels TP Transition Pixels Active Pixels Iso Isolation Stages LT 400CL Fig 9 Sensor layout APHB 4128 LVAL th DVAL 7 Effective pixel period k as Se zle E le amp 11 9933390939933392
46. e sensors mounted on a prism for the R G and B channels It operates with an 80 MHz pixel clock resulting in a maximum line rate of 16 180 lines per second The camera outputs digital data in 3 x 8 bits or 3 x 10 bits format via Camera Link The camera is configured by software through the serial communication port of the Camera Link interface or via RS 232C through a 12 pin Hirose connector The camera accepts M52 or F mount lens The latest version of this operation manual can be downloaded from www jai com The latest camera control tool for the LT 400CL can be downloaded from www jai com For camera revision history please contact your local JAI distributor 2 Camera nomenclature The standard camera composition consists of LT 400CL camera body with F mount x1 Lens mount sensor protection cap x1 The camera is available in the following versions LT 400CL M52 F Where L stands for Linear sensor family T stands for Tri sensor 400 represents the resolution 4000 pixels 400 represents variation with the same resolution and CL stands for CameraLink interface M52 stands for M52 lens mount version and stands for the Nikon mount version 3 Main features 3CMOS line scan camera with 4096 pixel resolution Dichroic RGB beam splitter prism 16 180 lines per second scan rate 80 MHz pixel clock 3 x 8 bits or 3 x 10 bits output through Camera Link interface Flat field correction Pixel by pixel compensation on e
47. h all operation modes It is m however not active when the test pattern T function is enabled en The EEN signal is available at the Camera MET m E y Link connector and at the 12 pin Hirose d __ connector at the same time Y At the Camera Link connector this signal has x positive logic At pin 9 of the 12 pin Hirose connector the signal has negative logic and is therefore named XEEN The output circuit is 75 ohm complementary emitter follower The Fig 7 XEEN Circuit 12 pin Hirose circuit is powered from the 5V supply resulting in an output level of more than 4V It is not terminated 11 LT 400CL Ry See the possibilities 6 Functions and Operation 6 1 Basic functions The LT 400CL is built around three high performance CMOS line scan image sensors mounted on a prism block as illustrated in Figure 7 Blue CHOS sensor Process circuits Green w 05 sensore Auto black 3 DSNU correction Ri Camera link PRNU correction amp T Shading correction Medium 3 Gain T 3 2 Line matrix D o User black setup Digital binning Red CHOS sensor Fig 8 Sensor block diagram The incoming light is divided into three primary colors Red Blue and Green and transmitted to each sensor The output from each sensor is LVDS and it is converted to parallel digital signals in th
48. hapter 6 3 7 Knee correction for further details 42 8 20 8 21 8 22 8 23 LT 400CL Command LR Line Rate Scan Rate This function is used only when there is no external trigger pulse e g from an encoder available It allows the user to program the line rate in order to match the speed of the object being scanned In the No Shutter mode the exposure time is directly proportional to the line rate Tex 1 line rate Settings 4944 to 1201920 61 8 5 to 15 02ms in 12 5ns increments Associated functions Trigger origin TG 0 Applicable modes No Shutter with internal line rate generator TR 0 Shutter Select with internal line rate generator TR 1 Important note e The data can be stored in the camera memory for next start up Refer to chapter 6 3 1 Line rate Command LR for further details Command NR Noise reduction This command activates noise reduction circuit Settings O OFF 1 ON Command PBC Select pixel black correction mode This command enables or disables the pixel black level correction function which compensates for Dark Signal Non Uniformity DSNU FPN for individual pixels Settings 0 Off Bypass 1 Factory setting 2 user area Associated functions Command PBR Applicable modes All Command PBR Run pixel black correction and store to user area This command initiates the pixel black level correction function and stores the settings in the user area When this f
49. he camera The Pixel Gain and Pixel Black correction functions will allow the user to compensate for such artifacts producing an essentially flat image 3 Caution when mounting a lens on the camera When mounting a lens on the camera dust particles in the air may settle on the surface of the lens or the image sensor of the camera It is therefore important to keep the protective caps on the lens and on the camera until the lens is mounted Point the lens mount of the camera downward to prevent dust particles from landing on the optical surfaces of the camera This work should be done in a dust free environment Do not touch any of the optical surfaces of the camera or the lens 4 Caution when mounting the camera When you mount the camera on your system please make sure to use screws of the recommended length described in the following drawing Longer screws may cause serious damage to the PCB inside the camera Camera chassis SS Y 5 0mm 0 2mm Fixing plate Mounting the camera to fixing plate 58 LT 400CL If you mount the tripod mounting plate please use the provided screws Camera chassis Tripod mount Attaching the tripod mount 5 Exportation When exporting this product please follow the export regulation of your own country 6 References 1 This manual for LT 400CL can be downloaded from www jai com 2 Datasheet for LT 400CL can be downloaded from www jai com 3 The camera control software can b
50. is as the name implies a non uniformity of the response of each individual pixel This means that for a fixed light level each pixel will have a slightly different output level response Fig 16 Conceptual drawing for PRNU correction 1 LT 400CL Ey See the possibilities To correct for PRNU the camera s internal correction circuit captures one or several lines of data under non saturated illuminated conditions which are not more than 80 of maximum recommend level is half of maximum and the average across the line is calculated Based on this average coefficients are then generated for each individual pixel The coefficient has the function of multiplying the pixel output with a factor greater or less than 1 These coefficients are stored in a non volatile memory and are therefore maintained after power down Fig 17 Conceptual drawing for PRNU correction 2 6 3 9 DSNU Dark Signal Non Uniformity correction DSNU Dark Signal Non Uniformity is as the name implies a non uniformity of offset level of each pixel which is not dependent on the incoming light Fig 18 Conceptual drawing of DSNU correction To correct for DSNU the camera internal correction circuit captures one or several lines of data under dark conditions the lens must be covered by a lens cap and the average across the line is calculated Based on the average coefficients are then generated for each individual pixel The coefficient has the functio
51. l brightness of the line 45 LT 400CL Ry See the possibilities Important note e Depending on the optics and or illumination used together with the camera it may not be possible to fully compensate for shading Operating procedure for individual R G and B channel shadings correction 1 Before making adjustment approximately 30 minutes warming up is required 2 Make sure the output signal is not saturated 80 of full output is recommended 3 Set command PGC 2 and SDC 2 4 Set command SDR to 0 to initiate shading correction 5 desired set command PGR to 0 to activate pixel gain correction to correct for pixel response non uniformity Again set SDR 0 after running the pixel gain correction e B Color shading correction SDR 1 In this mode shading correction of R and B signals is referenced to the G signal which is the reference When the Green channel detects undulating or parabolic type shading R and B channels are compensated to follow the same curve The calculation is based on the average value of 8 consecutive pixels Important Note e For this function no reference value is stored in the camera Operating procedure for color shadings correction 1 Before making adjustment approximately 30 minutes warming up is required 2 Make sure the output signal is not saturated 80 of full output is recommended 3 Set command PGC 2 and SDC 2 46 8 33 8 34 8 35 8 36 8 3
52. ly proportional to the line rate Texp 1 line rate This mode is used when there is no external trigger signal available and the speed of the object is fixed or can be pre determined The line rate can be varied from 61 8ys to 15 02ms in 1 clock 12 5ns steps When using this mode a special function called one push auto line rate is available This mode automatically maintains a constant output level by changing the line rate See chapter 7 configuring the camera for further details on this function The line rate is automatically adjusted in order maintain sensitivity without reducing the S N ratio To use this mode Set function Trigger mode No shutterTR 0 Trigger origin internal TG 0 Line rate LR 4944 to 1201920 61 8us to 15 02ms in 12 5ns increments Optional functions when using this mode One push auto line rate AR 0 Auto line rate reference AL 0 to 1023 One push white balance WB Important Note e The one push auto line rate function is not recommended for continuous web applications as the speed of motion needs to be adjustable in order to maintain the aspect ratio of the image e Only gain based one push white balance functions WB are available with this mode Fig 30 No shutter internal trigger mode 22 LT 400CL Fig 31 No shutter mode
53. mand TP Trigger 48 8 39 Command TR Trigger seen ee ehh eh hh ehe enne 48 8 40 Command TS Test ehh ehe ete ete enne 48 8 41 Command WB White Balance 48 9 Camera Control Tool ET A00CL eee aeo ero ere eee ero n E Ere 49 10 External appearance and Dimensions 52 TE e 01 54 11 1 Wy 54 EZ Spectral aes 57 tp ae oot Ne 58 1 591 58 2 Typical Sensor Characteristics cece cece cece cece ence ences eene enne 58 3 Caution when mounting a lens on the eee cece cece ence enc eene enne 58 4 Caution when mounting the eee ene ehe enn enne 58 3 gt gt 4 eoe EEUU 59 6 IRETERENCES edd 59 Change HIStory _______________ SEES 60 Users Em 61 LT 400CL 1 General LT 400CL is a 3CMOS line scan camera using three 4096 pixel lin
54. n of adding or subtracting a value to the pixel output These coefficients are stored in a non volatile memory and are therefore maintained after power down As the dark signal is highly dependent on the exposure time this correction must be performed under the operating conditions exposure time and line rate that will be used by the application Fig 19 Conceptual drawing of DSNU correction 18 LT 400CL 6 3 10 Shading correction Shading is caused either by illumination with uneven distribution of light across the surface or by reductions in the light transmission ratio towards the edges of a lens The shading correction incorporated in the camera will compensate for this effect by as much as 2056 of the brightest signal Shading is not compensated for each individual pixel The signal is averaged across groups of 8 pixels in relation to the whole line The pixel response non uniformity will be superimposed on the output also after shading correction has been performed Therefore it is recommended to perform PRNU correction before shading correction Fig 20 Shading correction The shading correction has two ways to compensate flat shading correction and color shading correction Flat shading correction compensates red blue and green signals to be flat output The range of compensation is within plus or minus 20 as compared the brightest signal level It may not compensate enough according to the lenses and or lighting in us
55. nnector 1 12 pin Hirose connector 47 8 38 8 39 8 40 8 41 LT 400CL Ry See the possibilities Command TP Trigger polarity Settings O Active Low factory default 1 Active High Command TR Trigger Mode Selects the trigger mode of the camera Depending on the mode used it allows the scan rate to either be programmed by an internal timing generator or by an external trigger pulse Settings O0 No Shutter mode 1 Shutter Select mode 2 Pulse Width Control PWC mode Associated functions Command TG trigger origin Command TI trigger input Command TP trigger polarity Command TS Test pattern This allows the camera to output a number of test patterns for set up and troubleshooting Settings O off 1 Color bar 2 Gray wedge 3 Gray bars 4 White 890LSB Refer to chapter 6 3 14 Test pattern generator for further details Command WB White Balance The white balance function can be used for manual setting One Push automatic white balance AWB and fixed color temperatures 3 selections Settings 0 Manual On Push AWB 1 4000K 2 4600K 3 5600K Applicable modes All Associated functions Command AW Gain Refer to chapter 6 3 4 White balance for further details 48 LT 400CL 9 Camera Control Tool for LT 400CL A Camera Control Tool for Windows XP Vista 7 can be downloaded from www jai com 9 1 Software Install Execute LT 400CL Ver XXX exe in the downloaded file The setup program starts
56. ontrol tool WB AH Switch Gain Q x Shutter x x Gain white balance Calculates the difference between green and red video levels and green and blue levels and adjusts the red and blue channels video level so that the video level of all three channels becomes equal Command WB 0 Manual One push AWB WB 1 4000K WB 2 4600K WB 3 5600K 14 LT 400CL Shutter white balance only for shutter select mode Calculates the difference between green and red video levels and green and blue levels and adjusts the red and blue channels shutter speed so that the video level of all three channels becomes equal Command AH 0 Activate One push shutter AWB Note If gain and shutter white balance are used in the external trigger mode external trigger pulses should be continuously provided while white balance adjustment is executing 6 3 5 Gain control The LT 400CL has two ways of gain setting one for the master tracking and the other for individual adjustment Each setting also has two analog gain modes one is the GAIN LOW and the other is the GAIN HIGH When the Gain Low is selected gain for each channel can be adjusted from 4dB to 14dB as the reference of OdB which is the default output setting If the Gain High is selected the reference level is changed to 6dB and gain for each channel can be adjusted as the reference of 6dB The following shows the setting procedures and adjustable range 1 Master
57. ote e When color temperature of used illumination exceeds the range of adjustment proper white balance may not be obtained e The data can be stored in camera memory for use at next start up e This function can work on external trigger mode e The S N ratio of the output will remain constant for all channels Refer to chapter 6 3 4 White balance for further details Command AHRS Request status after One Push AWB This command returns the status of the One Push AWB function with the following parameters not completed yet 1 Succeeded 2 Error1 Green image too bright 3 Error2 Green image too dark 4 Error3 Timeout occurred Command AL Automatic Line Rate Reference Level Settings 0 to 1023 10 bit output Applicable modes No Shutter with Internal trigger Shutter select with internal trigger Associated functions Command AR Command AR Automatic Line Rate setting This function will calculate and set the line rate of the camera based on the Automatic Line Rate Reference Level as set in command AL and the scene illumination Please note that the aspect ratio of the scanned object will change as the line rate is changed Settings 0 activate automatic process Applicable modes No Shutter with internal trigger Shutter select with internal trigger Associated functions Command AL Command TG 0 Important note e The data can be stored in the camera memory for next start up 39 8 5 8 6 8 7
58. re used Note2 The above specifications are subject to change without notice 56 LT 400CL 11 2 Spectral sensitivity 100 LT 400CL Spectral response incl Sensor sensitivity 90 80 transmittance 500 600 700 800 wavelength nm Gch Fig 34 Spectral response including prism and sensors 57 LT 400CL Ry See the possibilities Appendix 1 Precautions Personnel not trained in dealing with similar electronic devices should not service this camera The camera contains components sensitive to electrostatic discharge The handling of these devices should follow the requirements of electrostatic sensitive components Do not attempt to disassemble this camera Do not expose this camera to rain or moisture Do not face this camera towards the sun extreme bright light or light reflecting objects When this camera is not in use put the supplied protective cap on the lens mount Handle this camera with the maximum care Operate this camera only from the type of power source indicated on the camera Remove power from the camera when changing switch settings 2 Typical Sensor Characteristics The image sensors used in the LT 400CL are CMOS type and have been chosen for their superior performance There may however always be artifacts visible in the scanned image originating from pixel imperfections in t
59. time by programming a timing generator while the line rate is controlled by an external trigger signal The camera can accept an external trigger through the Camera Link connector or though the 12 pin Hirose connector To use this mode Set function Trieger TR 1 Trigger origin external TG 1 Individual R and B exposure _ El O individual El 1 tracking with Programmable exposure PER PEG PEB 4800 to 1194752 60us to 14 9ms 12 5ns steps Important note e If using individual exposure the EEN signal represents the channel with the longest exposure time e The minimum trigger interval Scan mode Trigger input via Minimum interval us Full Binning Camera link 62 3 Hirose 12 pin 66 8 Sub sampling windowing Camera link 37 0 Hirose 12 pin 41 5 e The minimum trigger pulse width Trigger input via Minimum trigger pulse width Camera link 500 ns Hirose 12 pin 5us e The maximum exposure time is the line rate e When the one push white balance has been initiated and the rear panel LED shows orange the camera must receive continuous external trigger pulses corresponding to the frequency and duty cycle used in the application 851 clk EEN is output to the channel having the longest exposure value Exposure Exposure G Exposure LVAL DWAL Fig 39 Shutter select mode with external trigger
60. unction is activated lens must be capped Settings 0 Run this function Associated functions Command PBC must be set to 2 Important note e This function requires that no light reaches the image sensors The lens must therefore be covered by a lens cap or put the F mount protective cover on the camera when executing this function e As the black level is influenced by the exposure time especially for long exposure time at slow scan rates it is recommended to perform the pixel black correction at the exposure time and line rate at which the camera will be operated 43 8 24 8 25 8 26 8 27 8 28 LT 400CL Ry See the possibilities Command PBS Inquire the status of after pixel black correction This command returns the status of the pixel black correction with the following parameters O Shading correction not completed yet 1 Successful 2 Error 1 Image was too bright 3 Error 2 Image was too dark 4 Error 3 Timeout occurred Command PER Programmable exposure Red This command allows individual setting of the exposure time of the Red channel It is only valid for the Shutter select mode Settings 4800 to 1194752 clocks 60 us to 14 9ms in 12 5ns steps Applicable mode 1 Shutter select mode Associated functions and exposure interlocked with Command PEG Programmable exposure Green This command allows individual setting of the exposure time of the Green channel It is only
61. us after one push AWB shutter AHRS lt CR gt lt LF gt lt One of following values will be replied from the camera gt O AWB not finished yet 1 Succeeded 2 Error1 G image was too bright 3 Error2 G image was too dark 4 Error3 Timeout error occurred D Image format nm Bl Param lt CR gt lt LF gt ICON 1 Binning BI CR LF 0 Binning Off 1 Binning On BA Param lt CR gt lt LF gt 3n 2 Bit allocation BA lt CR gt lt LF gt 0 24bit 1 30bit 0 Off 1 Color Bar Test Pattern TS Param lt CR gt lt LF gt 2 Gray Pattern 1 Off at power up 3 Gray Pattern 2 4 White SRO Param O off 4 Sensor read out lt CR gt lt LF gt 1 Sub sampling SRO lt CR gt lt LF gt 2 Windowing 35 LT 400CL E See the possibilities E Gain white balance and signal settings 1 Gain Level GA Param lt CR gt lt LF gt O to 800 GM 0 100 1dB Master GA lt CR gt lt LF gt 400 to 1400 GM 1 GAR Param lt CR gt lt LF gt 400 to 600 GM 0 e SCR LES 400 to 1400 GM 1 GAB Param lt CR gt lt LF gt 400 to 600 GM 0 400 to 1400 1 4 Gain Low High SGR Param lt CR gt lt LF gt 0 Low Red SGR lt CR gt lt LF gt 1 High 5 Gain Low High SGG Param lt CR gt lt LF gt O0 Low Green Master SGG lt CR gt lt LF gt 1 High
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