TECHNICAL MANUAL FOR DVC-1500 CAMERAS
Contents
1. 20MHz operation gives the user the maximum dynamic range minimum noise floor and lowest power operation Dynamic range refers to the maximum signal swing under which the camera meets performance specifications and it is expressed in the maximum number of captured electrons on the CCD At 20MHz the DVC 1500 is capable of approximately 16 000 electrons dynamic range 5 1 2 40 MHz operation 40MHz operating speed provides the user with the highest capture frame rates at the expense of slightly higher noise and power dissipation The DVC 1500 is similarly capable of approximately 16 000 electrons dynamic range at 40 MHz 5 2 Operational modes The following section describes the distinct operating modes of the DVC 1500 cameras Users of DVCView software will find many of these modes seamlessly integrated together to make operation of the camera as easy as possible However developers have full control of these modes via the DVC camera API Refer to Appendix A for exposure timing diagrams 5 2 1 5 2 2 5 2 3 Continuous overlapped exposure mode with electronic shuttering This mode operates the CCD in a video mode in which the previous exposure is being read out while the current exposure is underway Once initiated via trigger the camera operates continuously in this fashion until halted by the host computer Exposure is controlled using electronic shuttering Depending on the exposure setting electronic shuttering2. TTL_RESET exposure exposure exposure e Le A strobe AAA output ENF readout output image data output Pixel clock runs continuously Edge triggered exposure mode Strobe pulse occurs only if enabled 21 Bulb pulse width exposure mode Bulb mode allows the camera exposure to be controlled by the external trigger signal The leading edge of the trigger signal initiates the exposure and the camera will continue to expose until the trailing edge of the trigger as shown The readout sequence begins immediately after the trigger signal trailing edge and at the end of readout the camera returns to the armed state awaiting the next trigger Any trigger activity during the readout sequence is ignored trigger ignored until readout complete software command or external trigger TTL_RESET exposure exposure E T readout gt strobe A IN output output image data output Pixel clock runs continuously Bulb pulse width exposure mode Strobe pulse occurs only if enabled 22 Appendix B description of DVC 1500 auxiliary and power supply connectors Auxiliary connector The auxiliary connector on the DVC 1500 camera allows the user access certain camera control and internal status signals The following section describes each signal Illustration of the auxiliary connector on the rear of the DVC 1500 camera Auxiliary Connector Pin Signal
3. the absence of a trademark identifier is not a representation that a particular mark is not a trademark All non DVC products brand names company names are trademarks or registered trademarks of their respective owners and appear in this document for reference only Disclaimer The information in this document is provided as is DVC expressly disclaims all representations and warranties of any kind regarding the contents or use of the information including but not limited to express and implied warranties of accuracy completeness merchantability fitness for a particular use or non infringement In no event will DVC be liable for any direct indirect special incidental or consequential damages including lost profits lost business or lost data resulting from the use or reliance upon the information whether or not DVC has been advised of the possibility of such damages 17 Appendix A Exposure Timing Diagrams Continuous overlapped exposure mode with electronic shutter In the continuous overlapped exposure mode the camera remains in an idle state until the falling edge of the trigger A first exposure is made followed by the typical interline CCD overlapped exposure readout cycle Electronic shuttering allows the exposure to be adjusted via software control without altering the frame rate of the readout Any further triggers while the camera is operating continuously are ignored The camera will remain in this continuous operat
4. 2 1 Continuous overlapped exposure mode with electronic shuttering 8 5 2 2 Continuous overlapped extended exposure mode n se 8 5 2 3 Continuous non overlapped exposure MOAE sccceseceseeseeneeseceseeeseeennecnseenseeneeeaes 8 5 2 4 Edge triggered exposure single frame capture mode ooooonicnnncnaninnnnnnnnannnnnnanonnncn nos 9 5 2 5 Bulb pulse width exposure mode ccccccccesccceessccessseeenseeesseeesceceaeeseuseeesaeecesaeeeenaeenes 9 3 BINNING oieee leaa a A aaee e AASA EA E NEE 9 54 REGION OF INTERES Toi AEA T E E N 10 6 CCD PHENOMENA lia 10 O BLOOMING erisir gorset aar E AE AE ANAE EAER R AE E AA 10 6 21 SMEAR ii AAA A A E E RAE EE ae ens 10 7 MAINTENANCE inosensia aerieni isn re a eiea 11 IMPORTANT WARRANTY INFORMATION sesseseesesoesesoesesoesosoesosoesosoesossesoesesossosossosesosossoe 11 Tal CLEANING GUIDELINES oora ea ea AEA ta TNN 11 7 1 1 Cleaning the lens or optical assembly oooonnnnccnnnccinnnccnoncnnnannnnnancnnnnn nono ncnnn cc nnncc rana 11 7 1 2 Standard non cooled camera precautions oooococnnncccnoncnnnnnnnnnnncnonnn nano ncnnn nc nanncrnnn nn Il 7 1 3 TE Cooled camera preCQuti0WS ooooconononnnnnnnnnnnnnanonnonancnnn cnn anna conan ona ran ran nr nn cc rancia I 7 1 4 Cleaning the infra red filter Standard and TE Cooled Cameras n os 12 7 1 5 Infra red filter removal and installation 13 7 1 6 How to remove the IR filter csccssssssscessecsnccecceseceseeenseeseecsaece
5. faceplate is a coated optical surface and should not be exposed unless absolutely necessary It will be exposed if the infra red filter is removed Never attempt to clean the CCD faceplate unless the dirt or debris is a noticeable problem in the image and cleaning the lens does not remedy the problem Any time the CCD sensor is exposed it is at risk of being damaged Use common sense and carefully follow these guidelines 7 1 7 1 What must I do before cleaning the CCD imager faceplate First carefully examine the CCD faceplate in a clean location under a strong direct light Try to determine if the contaminants are a few dust particles an oily smudge such as a fingerprint or both 7 1 7 2 What if the contamination is only a few dust particles If you are sure that the contamination is particulates e Use a CLEAN DRY preferably brand new camel hair lens cleaning brush such as those used by photographers to gently wipe the contaminants off of the CCD Faceplate e If in doubt or if the CCD faceplate surface is very dusty please call DVC customer service before proceeding e 7 1 7 3 What if the contamination includes a smudge DVC strongly recommends returning the camera to the factory for professional cleaning to avoid damaging the CCD faceplate Scratches chemical contamination or other damage due to improper cleaning may void the camera warranty e Remove the camera from the optical assembly and bring the camera to a
6. greater near infra red sensitivity is desired the infra red filter can be removed It is important to note that removal of the IR filter can allow debris to collect on the CCD faceplate Please use every precaution to avoid contact with the CCD faceplate and to keep the camera securely mounted to the optical system or capped when not in use 7 1 6 How to remove the IR filter Caution This procedure will cause the focus calibration to be lost Readjustment of the lens back focus will be required after reassembly Loosen the lens mount lock ring with the wrench supplied by DVC Unscrew the lens mount filter assembly ring from the camera body and remove the lock ring from the lens mount ring Hold the lens cap with the pins sticking upward in one hand Lower the lens filter assembly on to the pins with the other hand 13 Hold the lens cap and rotate the lens ring anti clockwise and then remove the lens ring Remove the filter from the filter ring with lens tissue and store in a protective container Replace the lens ring on to the filter ring and screw on clockwise Remove the lens ring from the lens cap 14 Screw the lock ring back onto the lens mount ring and screw both back onto the camera Adjust focus by loosening the lock ring and rotating the lens mount ring to adjust the lens to CCD distance To re install the IR filter or other filters reverse the above procedure 7 1 7 Cleaning the CCD faceplate The CCD
7. inhibits the CCD exposure during a specific portion of the readout interval Referring to the first figure in appendix A the shorter the desired exposure the longer the inhibition of exposure during the readout of the previous frame Regardless of exposure time frame rate remains constant The maximum exposure time in this mode is the time required to read out one frame and that frame time depends on the pixel rate ROL and binning settings Exposure range full resolution without binning or Region of Interest 20MHz Readout Increments of 77 microseconds ranging from 77 microseconds to 82 milliseconds 40MHz Readout Increments of 41 microseconds ranging from 41 microseconds to 43 milliseconds Continuous overlapped extended exposure mode In this mode exposure and readout are overlapped but the exposure ranges from one frame time time taken to read out entire frame to many seconds This mode is typically used if intermediate exposure times are desired but with the fastest frame rate possible Once initiated via trigger the camera operates continuously in this fashion until it is halted by the host computer Exposure range full resolution without binning or Region of Interest 20MHz Readout Increments of 77 microseconds ranging from 82 milliseconds to 5000 seconds 40MHz Readout Increments of 41 microseconds ranging from 43 milliseconds to 2600 seconds Continuous non overlapped exposure mode In this mod
8. is a TTL output that if enabled is high during the actual sensor exposure time in certain modes Refer to the diagrams in Appendix A for details on STROBE operation with respect to the exposure interval in each mode STROBE is typically used to synchronize an external flash lamp or other device with the camera The STROBE signal can also be configured as a programmable output that can be set high or low from the host computer Refer to the DVC API documentation for details Power supply connector pin assignments The power supply connector is a standard DB 9 male connector with the following pin assignments Pin No Signal Name Signal Name PinNo 6 GND 5 VDC 250mA 1 7 Reserved 4 8VDC 1250mA 2 8 GND 15 VDC 250mA 3 9 Reserved Reserved 4 15 VDC 250mA 5 i 24
9. lens manufacturer s recommendations for cleaning DVC Company is not responsible for any damage caused to a lens or optical assembly caused by customer cleaning or misuse To ensure optimum image quality with any DVC camera do not remove the protective lens mount cap until ready to mount the camera on the application If the camera is removed from the application immediately replace the cap Doing so will keep dust and other contaminants from accumulating on the optical surfaces In addition please note the following model specific guidelines 7 1 2 Standard non cooled camera precautions While the lens mounting ring and locking flange allow the user some lens back focus adjustment complete removal of the ring will expose the CCD faceplate and will likely cause debris to accumulate on its surface Extreme care should be taken to avoid completely removing the lens mounting ring and exposing the CCD faceplate unless absolutely necessary Fingerprints or other evidence of contact with the CCD faceplate may void the warranty 7 1 3 TE Cooled camera precautions The DVC Thermoelectrically cooled cameras contain the CCD in a sealed gas filled chamber having an anti reflective glass window Do not under any circumstances loosen or remove the inner glass window from a cooled camera Doing so will void the warranty If it is suspected that the seal has been broken or if the window breaks call DVC Customer Service Do not apply power to the ca
10. list Pin Signal ENL Output DIFF_RESET_OUT Output TTL_RESET Input GND ENF Output STROBE INT PULSE Output NOP Ww a H Pin 1 ENL ENL refers to Enable Line It is an active high TTL signal and is asserted during the valid pixel period on each line as shown in the diagrams in Appendix A It returns low during the inter line period between each line and during the inter frame period between each frame Pin 2 DIFF_RESET_OUT This pin is an active low TTL signal that is the buffered version of the CameraLink CC1 signal The CC1 signal driven from the host is one of the software controlled trigger signals for the camera as described in Appendix A The CC1 signal is brought out of the 23 camera as DIFF_RESET_OUT to allow users to trigger other devices DIFF_RESET_OUT is labeled INPUT_1 on older DVC cameras and on the Mini DIN to BNC cable accessory sold by DVC Pin 3 TTL_RESET TTL_RESET is a TTL input used to trigger exposures It functions identically to the CameraLink CC1 signal TTL_RESET is also labeled VRST_INT on older DVC cameras and on the Mini DIN to BNC cable accessory sold by DVC Pin 4 GND This is the electrical ground for the camera Pin 5 ENF ENF refers to Enable Frame and is a TTL output that is high during active readout lines EN_FRAME remains high throughout the active readout and returns low between frames Pin 6 STROBE and programmable output STROBE
11. 1020 pixel resolution and 6 45 um square pixels with high quantum efficiency and low noise The DVC 1500 is offered in both standard and cooled configurations with a choice of Gigabit Ethernet or CameraLink interface Additionally the DVC 1500 is bundled with the full complement of DVC software For end users the DVCView imaging application provides full control of up to 8 cameras simultaneously through an intuitive user interface and it allows the user to acquire pan zoom analyze and save imagery and metadata Additionally DVCView provides direct to disk video streaming time lapse capture image averaging image background subtraction and flat fielding For developers DVC also offers a software developer s kit which includes a comprehensive API to streamline the integration of any DVC camera into your system After software installation the SDK can be found in the dvcco docs directory This manual is a functional overview of the camera and it is meant to be a companion to the DVCView User Manual and the SDK Thank you again from all of us at DVC 2 Receiving and Unpacking Your DVC 1500 camera was thoroughly tested and carefully packed at the factory Once the camera shipment is accepted for delivery the carrier assumes full responsibility for its safe arrival Should you receive your shipment with any damage concealed or apparent please contact the carrier at once The carrier will instruct you on how to initiate a
12. TECHNICAL MANUAL FOR DVC 1500 CAMERAS Manual Number 86 1500 01 Release Date December 11 2008 N a 3 E 1 INTRODUCTION 0 a died 4 2 RECEIVING AND UNPACKING css ira 5 3 EQUIPMENT SUPPLIED 1 i isisinscssssies cdnseisissediceseietddesvesestnicdpesintesodedesuietdbetsdsestuistpendedvanseee 5 3 1 IMPORTANT INFORMATION REGARDING THE POWER SUPPLY sssseccesesseceeseseeeessseeeess 5 3 2 OPTIONAL ITEMS to ii Hate anise Asia 5 4 INSTALLATION Sia toese s otesi es sio 6 4 1 HOST COMPUTER REQUIREMENTS csccccccscssscsssscsssssscscscscscssvscsesscscsescsssavscsessescasscssuavesssess 6 Jdi Opera tne Syst m mereen A AS to EE E a dt 6 4 1 2 Hardware CameraLink configuration ssssseseeeeeeeeerererereserrsrreresresrerreereereereese 6 4 1 3 Hardware Gigabit Ethernet configuration sessseseeeeeeeeeeereereerereereerrreererrreres 6 4 2 INSTALLING THE GIGABIT ETHERNET OR CAMERALINK HOST INTERFACE BOARD 6 4 3 INSTALLING THE SOFTWARE cc ccccsssssscessssseeessseecesseeecesseeeecesessesessesseeesseseeseeseseeeensaaees 6 4 4 INSTALLING THE CAMERA HARDWARE ccsscccsssssceesesseeeesseeecesseeecesseeeecessseeseesesseeeeneaaees 6 5 CAMERA FUNCTIONS wssessssescisaracdscntoinssssteassanssvabacistesedsaciodvessedeaseisoacdnssinsssudsasonsoetsiniinese 7 S L OPERATING SPEED union 7 DAD 2OME Z Oper ai Ons a ine AS A AA OO Eek oe 7 5 1 2 AOMEZ Operator iii 7 5 2 OPERATIONAL MODES S enera E AA AA T 5
13. aeseansesneeeessaeesaneeaees 13 DLL Cleaning the CCD faceplale iones eos iodo lencia da 15 8 WARRANTY AND AFTER SALE SERVICE u sccsssssssscscescesssesccssscnsescssesesceseseoes 16 9 COPYRIGHT INFORMATION sciscsssssssssssssscvctespankscsenseuseosvsscetsstanehsessenssossacksouasanuesestenss 17 APPENDIX A EXPOSURE TIMING DIAGRAM cccssssssssssssssssssssscsssssessssessessessessessees 18 APPENDIX B DESCRIPTION OF DVC 1500 AUXILIARY AND POWER SUPPLY CONNECTORS piiccscssessccicinscaessassedesasescdoccandecscasesnssaddonsascadnscosedasdessoasenssossansedesoiesndsaseadecssadascasasaess 23 AUXILIARY CONNECTOR 550 ia hohe is ee eee set A E SILO 23 Auxiliary Connector Pin Signal list ccccccccccsscccesscceessceenceeesneeeeacecececesaeeseeeceeaeeseaeecseaeeeeeeees 23 PUA TENT A O RN 23 Pin Z2DIER RESETSO UL e e nd Tn a O 23 Pind TL ARE SED iii 24 Pin GND AA a dios 24 PMI ENE Spe nsebaacann ings a a e sand nae ted seve scent a aSa e ar 24 Pin 6 STROBE and programmable Output oooonnccnnnnicnonicnnncnnnnnncnnnnnnnnn conan ca nnnn nr nan na nnn cc ran 24 POWER SUPPLY CONNECTOR PIN ASSIGNMENTS ooocoooooncnccconnnnonnnnnnoccononnnnnnnnnnnccononannnononcncconnnnnnn nos 24 1 Introduction DVC Company based in Austin Texas is a leading manufacturer of high performance digital cameras We thank you for purchasing from the DVC 1500 product line The DVC 1500 cameras are based on the Sony ICX285 interline CCD which provides 1392x
14. clean dry location where it is safe to use flammable solvents please see caution below 15 e Carefully loosen the lens mount lock ring using the supplied DVC lock ring wrench e Orient the camera so that the lens mount is pointing downward and carefully unscrew the lens mounting ring e Place the camera face down on a clean dry surface to prevent particles from accumulating on the CCD faceplate e Use a CLEAN DRY preferably brand new camel hair lens cleaning brush such as those used by photographers to gently wipe the particles off of the CCD faceplate e Re examine the CCD faceplate after removing the dust If a smudge is still visible proceed by dipping a clean lint free cotton swab in ethyl or isopropyl alcohol The swab should be saturated but not dripping e Carefully draw the swab once across the CCD faceplate surface then rotate the swab 180 degrees to expose the fresh surface and draw it across the filter surface again Be careful not to pool alcohol on the glass surface e Re examine once again and repeat the process once if necessary If contamination continues to be a problem please call DVC Customer Service for assistance Caution Ethyl and isopropyl alcohols are highly flammable Do not use near extreme heat arcing electrical equipment such as space heaters or open flame Use only with proper ventilation Follow all safety instructions provided by the manufacturer of the alcohol product 8 War
15. damage claim If a visual inspection reveals damage upon receipt it must be noted on the freight bill or express receipt and the notation signed by the carrier s agent Failure to do so can result in the carrier refusing to honor the claim To return your camera to DVC for service you must first contact the DVC Customer Service Department in the United States at 512 301 9564 and request a Return Material Authorization RMA Returns will not be accepted without an RMA See Section 8 for details 3 Equipment Supplied The following is a list of equipment that may be supplied with the DVC 1500 camera depending on your order configuration DVC 1500 camera CameraLink or Gigabit Ethernet host interface board CameraLink or Gigabit Ethernet cable Regulated power supply Line cord with plug for country of service Lock ring wrench for adjusting lens back focal distance Combination lens cap and IR filter removal tool DVC software CD 3 1 Important information regarding the power supply The DVC 1500 power supply can be configured for 115 VAC or 220VAC mains voltages via the selection switch on the underside of the unit Before connecting to the mains please verify that the switch is in the proper position for your location Failure to set the power supply switch to the proper mains voltage may result in damage to the camera the power supply or both Such damage is not covered under warranty NOTE Dangerous voltage exists within the power
16. e the camera alternately exposes and reads out the CCD in a streaming fashion without any overlap This mode allows a wider range of exposures within the mode though frame rate decreases with increasing exposure time Once initiated via trigger the CCD operates continuously in this fashion until the camera is stopped Exposure range full resolution without binning or Region of Interest 20MHz Readout Increments of 77 microseconds ranging from 77 microseconds to 5000 seconds 40MHz Readout Increments of 41 microseconds ranging from 41 microseconds to 2600 seconds 5 2 4 Edge triggered exposure single frame capture mode Edge triggered exposure mode enables the camera to initiate an exposure immediately upon the leading falling edge of the external or CameraLink control lines with an exposure time set by software Alternatively the exposure can be initiated by the host via the DVC API The exposure and readout sequence is the same as the non overlapped continuous mode and has the same exposure range except only one frame is generated Once the readout of that frame has finished the camera returns to the armed state awaiting the next trigger edge If subsequent trigger pulses occur faster than the combined exposure and readout time any trigger received during the exposure or readout time will be ignored as illustrated in appendix A Exposure range full resolution without binning or Region of Interest 20MHz Reado
17. e solvents please see caution below Carefully loosen the lens mount lock ring using the supplied DVC lock ring wrench Orient the camera so that the lens mount is pointing downward and carefully unscrew the lens mounting ring and integral filter Place the camera face down on a clean dry surface to prevent particles from accumulating on the CCD faceplate Once the filter is removed Use a CLEAN DRY preferably brand new camel hair lens cleaning brush such as those used by photographers to gently wipe the particles off of the filter Re examine the filter after removing the dust If a smudge is still visible proceed by dipping a clean lint free cotton swab in ethyl or isopropyl alcohol The swab should be saturated but not dripping Carefully draw the swab once across the surface then rotate the swab 180 degrees to expose the fresh surface and draw it across the filter surface again Be careful not to pool alcohol on the glass surface Re examine once again and repeat the process once if necessary 12 If contamination continues to be a problem please call DVC Customer Service for assistance Caution ethyl and isopropyl alcohols are highly flammable Do not use near extreme heat arcing electrical equipment such as space heaters or open flame Use only with proper ventilation Follow all safety instructions provided by the manufacturer of the alcohol product 7 1 5 Infra red filter removal and installation If
18. est All cameras utilize proprietary timing to reduce diode glow in the CCD during long exposures All operational modes are initiated by a trigger signal In the case of continuous modes the trigger initiates the stream and the camera continues to run in streaming mode until explicitly disabled The edge triggered single frame mode produces one exposure in response to the leading default falling edge of the trigger signal Finally in bulb mode the camera exposes for the duration of the trigger pulse beginning on the leading default falling edge and ending on the trailing edge Readout occurs immediately after the trailing edge The trigger signal can have three different sources the external TTL trigger via the auxiliary connector see appendix B the software controlled trigger via a hard wired CameraLink camera control line or the software controlled through camera trigger command via the CameraLink serial port Developers should consult the DVC Camera API documentation for further information on the software controlled triggers If the TTL external trigger is used the trigger signal must be active low The trigger point is the high to low leading edge of the trigger signal 5 1 Operating speed The DVC 1500 is capable of operating at pixel rates of 20MHz and 40MHz All camera functions e g exposure mode binning ROL etc are operational at either speed subject to the limitations below 5 1 1 20 MHz operation
19. ion until disabled through software command It can then be re armed for another trigger event trigger ignored until camera operation halted software command or external trigger TTL_RESET exposure exposure exposure exposue lt Lie T readout Tireadout gt strobe output ENF output image data output Pixel clock runs continuously Continuous overlapped exposure mode with electronic shutter Strobe pulse occurs only if enabled 18 Continuous overlapped extended exposure mode This mode is similar to the overlapped electronic shuttered exposure mode except that the electronic shutter is not enabled and the exposure times are greater than one readout cycle frame time As a result readout frame rate will decrease as exposure time is increased but the overlapping exposure and readout provide the maximum frame rate for a given exposure time This mode also offers much longer integration times than overlapped electronic shuttered exposure mode Any further triggers while the camera is operating continuously are ignored The camera will remain in this continuous operation until disabled through software command It can then be re armed for another trigger event trigger ignored until camera operation halted software command or external trigger TTL_RESET lt t gt texp gt top gt Er gt strobe output ENF output image data o
20. mera Moisture will have been introduced into the chamber and cooling in the presence of moisture will cause condensation and frost on the CCD which can damage the entire cooling unit and or CCD 11 7 1 4 Cleaning the infra red filter Standard and TE Cooled Cameras The infra red filter is visible when the lens is removed mounted inside the lens mounting ring This filter blocks invisible near infra red light from reaching the CCD sensor This is desirable in most applications where the camera is imaging in the visible spectrum 7 1 4 1 What must I do before cleaning the infra red filter Do not remove the filter from the camera First remove the lens and carefully examine the filter in a clean location under a strong direct light Try to determine if the contaminants are a few dust particles oily smudge such as fingerprints or both 7 1 4 2 What if the contamination is only a few dust particles Use a CLEAN DRY preferably brand new camel hair lens cleaning brush such as those used by photographers to gently wipe the particles off of the filter 7 1 4 3 What if the contamination includes a smudge The filter is a high quality coated optical component and should be treated with extreme care Scratches chemical contamination or other damage due to improper cleaning may void the warranty Remove the camera from the optical assembly and bring the camera to a clean dry location where it is safe to use flammabl
21. ng it into the host computer 4 3 Installing the Software Place the DVC Software installation CD in the CD or DVD drive Launch the installer which will guide each installation step 4 4 Installing the camera hardware This camera contains sensitive electronic devices that can be damaged by static discharge Use appropriate static control methods when handling the camera Avoid contact with connector pins when cables and plugs are removed e Mount the camera in the desired location IMPORTANT To avoid dust accumulation on the CCD sensor do not remove the protective lens mount cap until ready to mount the camera to the optical system The cap should be replaced whenever the camera is removed from the optical system e Connect the 9 pin power supply connector to the back of the camera and secure it with the thumbscrews finger tight e Connect the camera to the host with the supplied interface cable and secure it at both ends e Connect the power supply line cord to the mains e Switch the power supply on 5 Camera Functions The DVC 1500 is a versatile high performance digital video camera with functions tailored to scientific and industrial markets It is capable of both high speed readout 40 MHz pixel rate and low noise readout 20 MHz pixel rate both at 12 bits The DVC 1500 has five basic operating modes described in detail below Each mode can be operated at either 20 or 40 MHz and can support binning and region of inter
22. ranty and After Sale Service DVC Company warrants equipment manufactured to be free from defects of material and workmanship Any part or parts will be repaired or replaced when proven by DVC examination to have been defective within two years from the date of shipment to the original purchaser Any warranty repairs will be performed at the factory or as otherwise authorized by DVC in writing Transportation charges to DVC shall be pre paid by purchaser This warranty does not extend to DVC manufactured equipment subjected to misuse accident neglect or improper application Nor does the warranty extend to DVC manufactured equipment that is repaired or altered by anyone other than DVC or those authorized by DVC in writing Products manufactured by other companies but re sold by DVC such as lenses optical and electro optical assemblies power supplies cables image processor boards and software are warranted by the original manufacturer This warranty is in lieu of all other warranties expressed or implied DVC shall not be liable for any collateral or consequential damages 16 A Return Material Authorization RMA Number must be obtained from DVC prior to returning any item for warranty repair or replacement 9 Copyright Information Copyright 2007 DVC Company All rights reserved Copyright on this document is owned by DVC Company 10200 Highway 290 West Austin Texas 78736 The information contained in this document is proprietar
23. rection can produce a significant increase in frame rate with increasing binning ratios However because the clocking cannot be accelerated in the horizontal direction horizontal binning provides no such speed increase In all modes of operation the DVC 1500 is capable of arbitrary on chip binning 2x 3x 4x 5x 21x in the vertical direction and 2x 3x and 4x on chip binning in the horizontal direction As vertical binning increases antiblooming control decreases so the user must control image illumination more carefully while binning However blooming does not cause any damage to the camera As the binning factor increases the CCD vertical registers are driven faster This naturally causes more heating of the CCD and driving electronics Since dark current generation increases with CCD die temperature a noticeable increase in CCD dark current can occur at very high binning factors 5 4 Region of Interest Arbitrary on chip vertical Region of Interest ROD is fully supported on the DVC 1500 cameras When ROI is enabled the regions above and below the region of interest are dumped as fast as the CCD allows The region of interest itself is read out normally Dumping unwanted lines outside the ROI can significantly increase the readout rate of the camera DVCView software provides interactive graphical ROI selection and the DVC camera API provides developers with full ROI control On chip horizontal ROI is not available Sim
24. supply Do not tamper with or open the supply under any circumstances Doing so may expose lethal voltage to personnel and will void the warranty 3 2 Optional items The following items may be ordered from authorized DVC dealers and are not typically supplied with the camera e Lenses or other optical elements e Third party image analysis software 4 Installation 4 1 Host computer requirements 4 1 1 Operating system Windows XP or Windows 2000 4 1 2 Hardware CameraLink configuration At least a SOOMHz Pentium III processor 256 MB RAM 100MB of free hard drive space and an available slot for the CameraLink interface board For optimal performance the recommended hardware configuration is a 2 GHz or greater P4 with 128 MB or RAM and a graphics card with at least 32 MB of video ram and OpenGL tm hardware support 4 1 3 Hardware Gigabit Ethernet configuration At least a 2 GHz Pentium 4 processor 512 MB RAM 100MB of free hard drive space an available slot for the Gigabit Ethernet interface board and a graphics card with at least 32 MB of video ram and OpenGL tm hardware support 4 2 Installing the Gigabit Ethernet or CameraLink host interface board Follow the instructions included with the board This host interface board contains sensitive electronic devices that can be damaged by static discharge Use appropriate static control methods when removing the board from the antistatic shipping bag and when installi
25. ted signal can be introduced into them either by small amounts of light leaking under the light shield or by signal electrons diffusing into the transfer region from the adjacent pixels Smear is typically noticed during very short exposure times when an extremely high light intensity is incident on the CCD The result is regions of elevated signal level extending above and below very bright regions Sony interline CCDs exhibit very low smear levels and smear should not be noticeable under normal operating conditions 10 7 Maintenance IMPORTANT WARRANTY INFORMATION There are no user serviceable parts inside the camera Removing the rear cover of the camera without express authorization from DVC Company will void the camera warranty DVC professional cameras are manufactured in a clean environment Before shipping each camera is tested to assure that it meets stringent specifications for cleanliness and quality 7 1 Cleaning Guidelines Frequent lens changes especially without careful attention to contaminants can allow debris to accumulate on the infra red blocking filter and lens surfaces Therefore DVC Company provides the following guidelines for cleaning those components To minimize the need to clean the optical surfaces do not remove the protective lens mount cap shipped with the DVC 1500 camera until you are ready to mount the camera to the optical system 7 1 1 Cleaning the lens or optical assembly Please follow the
26. ultaneous binning and ROI is fully supported As in binning the CCD vertical registers are driven faster when the region of interest is reduced Dark current can increase during operation with small regions of interest 6 CCD phenomena The Sony ICX285 CCD is a high performance image sensor with very good characteristics over a wide operating range To be as versatile as possible the DVC 1500 camera exploits as much of the CCD capability as possible and provides the user a great degree of control over the CCD functions As a result it is possible to observe some interesting low level CCD phenomena under certain extreme conditions 6 1 Blooming Blooming is the result of charge spillover in the vertical transfer regions when the signal greatly exceeds saturation The DVC 1500 provides anti blooming control which suppresses blooming under most imaging conditions If signal levels are extreme and such high signal levels cover a large percentage of the field of view blooming may occur The result is jagged vertical bright streaks running below such regions In general antiblooming performance decreases with increasing binning ratios 6 2 Smear Smear is inherent to interline CCD sensors such as the ICX285 It is the result of transferring image charge out of the pixels and into the adjacent vertical charge transfer registers while photons strike the CCD Though the vertical charge transfer registers are covered with a light shield unwan
27. ut Increments of 77 microseconds ranging from 77 microseconds to 5000 seconds 40MHz Readout Increments of 41 microseconds ranging from 41 microseconds to 2600 seconds 5 2 5 Bulb pulse width exposure mode The term bulb mode is borrowed from photography denoting a camera setting in which the shutter stays open as long as the shutter button is depressed Bulb mode in the DVC 1500 is analogous in that the CCD exposes as long as the trigger signal is asserted a low logic level on the external trigger or a low command on the CameraLink CC1 control line Upon the rising edge of the trigger signal readout of the exposure is initiated Maximum exposure time is indefinite although dark current will set the practical exposure time limit depending on the operating temperature and the tolerance of the application to dark current pattern noise Exposure range 20MHz or 40MHz Readout 10us minimum Maximum limited by dark current and particular application 5 3 Binning Binning is the process of summing adjacent lines and or pixels in order to increase dynamic range sensitivity or both Binning can either be accomplished on the CCD itself by summing the collected charge on chip binning or in software after A D conversion On chip binning can result in slightly lower noise relative to software binning under certain circumstances Because fewer lines are actually read out when binning vertically on chip binning in the vertical di
28. utput Pixel clock runs continuously Continuous overlapped extended exposure mode Strobe pulse is disabled due to continuous nature of exposure 19 Continuous non overlapped exposure mode This mode is similar to the overlapped exposure mode except that the exposure and readout periods are separate and do not overlap As a result for a given exposure time readout frame rates will be lower than that of overlapped exposure and will also decrease as exposure time is increased Any further triggers while the camera is operating continuously are ignored The camera will remain in this continuous operation until disabled through software command It can then be re armed for another trigger event trigger ignored until camera operation halted software SS command or external trigger TTL_RESET exposure exposure O a E Lp Tesco gt strobe IN output ENF output image data output Pixel clock runs continuously Continuous non overlapped exposure mode Strobe pulse occurs only if enabled 20 Edge triggered exposure single frame capture mode Edge triggered exposure mode operates almost identically to the first frame of the non overlapped continuous mode except that instead of continuing to run the camera returns to the armed state waiting for another trigger Exposure is controlled by software trigger ignored during exposure and readout software command or external trigger
29. y to DVC Company Information in this document may be used for non commercial personal and educational information purposes only and may be viewed copied printed and distributed only in accordance with these terms and conditions of use This information may not be copied nor duplicated in any form in whole or in part for use for profit or another business All printouts copies or reproductions of all or any part of the information contained in this document must include all patent copyright and or trademark notices originally included with the information User obtains no rights in the information or in any product process technology or trademark which it includes or describes and is expressly prohibited from modifying the information or creating derivative works without the express written consent of DVC Company DVC models represented in photographs may differ slightly from products shipped due to continuing product improvements and variations DVC reserves the right to make changes to product specifications and documentation at any time without notice The information in or references from this document are believed to be accurate and reliable however no responsibility is assumed by DVC for its use DVC reserves the right to change modify or correct the information contained in this document at any time without notice While DVC has used all reasonable efforts to indicate and to supply information regarding trademarks used in this publication
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