CAMERA LINK VT Series User manual

VT Camera Link series
Page 2 of 88 VW40-161-001
Revision History
Version
Date
Description
1.0
2016-03-04
First Release
1.1
2017-05-10
Added the following models:
VT-3K7C-E100
VT-3K7C-H100
VT-4K5C-E100
VT-4K5C-H100
VT-6K3.5C-E100
VT-6K3.5C-H100
1.2
2017-09-07
Added the STROBE tab
Updated camera mechanical dimensions (Added a connector for
Strobe Controller)
Added the Trigger Statistics feature
Added the Lookup Table feature
1.3
2018-05-31
Added the supported Pixel Data Format values depending on the Tap
setting

VT Camera Link series
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Contents
1Precautions .......................................................................................................................6
2Warranty ..........................................................................................................................8
3Compliance & Certifications............................................................................................8
3.1 FCC Compliance .........................................................................................................................8
3.2 CE: DoC.......................................................................................................................................8
3.3 KC................................................................................................................................................8
4Package Components ......................................................................................................9
5Product Specifications...................................................................................................10
5.1 Overview....................................................................................................................................10
5.2 Specifications.............................................................................................................................11
5.3 Camera Block Diagram..............................................................................................................14
5.4 Spectral Response ....................................................................................................................15
5.5 Mechanical Specification...........................................................................................................16
5.5.1 Camera Mounting and Heat Dissipation..........................................................................................17
6Connecting the Camera..................................................................................................18
6.1 Precaution to Center the Imaging Sensor..................................................................................18
6.2 Controlling the Camera..............................................................................................................18
7Camera Interface.............................................................................................................19
7.1 General Description...................................................................................................................19
7.2 Camera Link Connector.............................................................................................................19
7.3 Power Input Receptacle.............................................................................................................23
7.4 Control I/O Receptacle ..............................................................................................................24
7.5 Trigger / Direction Input Circuit..................................................................................................25
7.6 Strobe Output Circuit.................................................................................................................25
8Acquisition Control.........................................................................................................26
8.1 Line Start Trigger.......................................................................................................................26
8.1.1 Trigger Mode ...................................................................................................................................26
8.1.2 Using an External/CC1 Trigger Signal.............................................................................................29
8.1.3 Rescaler Mode.................................................................................................................................30
8.1.4 Trigger Statistics..............................................................................................................................31
8.2 Maximum Allowed Line Rate .....................................................................................................32

VT Camera Link series
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9Camera Features.............................................................................................................33
9.1 Operation Mode.........................................................................................................................33
9.2 TDI Stages.................................................................................................................................34
9.3 Direction.....................................................................................................................................36
9.4 Region of Interest ......................................................................................................................37
9.4.1 Setting the ROI................................................................................................................................37
9.5 Binning.......................................................................................................................................39
9.6 Data Bit......................................................................................................................................40
9.7 Gain and Black Level.................................................................................................................41
9.8 LUT............................................................................................................................................42
9.9 Dark Signal Non-uniformity Correction......................................................................................44
9.9.1 Generating and Saving User DSNU Correction Values ..................................................................45
9.10 Photo Response Non-uniformity Correction..........................................................................47
9.10.1 Generating and Saving User PRNU Correction Values ..................................................................48
9.11 Reverse X .............................................................................................................................49
9.12 Camera Link Output..............................................................................................................50
9.13 Strobe Mode..........................................................................................................................51
9.14 Temperature Monitor.............................................................................................................52
9.15 Status LED............................................................................................................................52
9.16 Test Image.............................................................................................................................53
9.17 Pre-emphasis (M72 / M95 based VT Series Only)................................................................55
9.18 Camera Link Pixel Clock (M42 based VT Series Only).........................................................55
9.19 Field Upgrade........................................................................................................................55
10 Camera Configuration....................................................................................................56
10.1 Setting Commands................................................................................................................56
10.2 User Set Control....................................................................................................................58
10.2.1 Factory Default Setting Values........................................................................................................59
10.3 Command List.......................................................................................................................60

VT Camera Link series
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11 Configurator GUI.............................................................................................................66
11.1 Camera Scan........................................................................................................................66
11.2 Menu.....................................................................................................................................67
11.2.1 File...................................................................................................................................................67
11.2.2 Start-Up ...........................................................................................................................................68
11.2.3 Tool..................................................................................................................................................69
11.2.4 About ...............................................................................................................................................70
11.3 Tab ........................................................................................................................................71
11.3.1 VIEW Tab.........................................................................................................................................71
11.3.2 MODE/EXP Tab...............................................................................................................................72
11.3.3 VIDEO Tab.......................................................................................................................................73
11.3.4 STROBE Tab...................................................................................................................................74
11.3.5 LUT Tab ...........................................................................................................................................75
12 Troubleshooting..............................................................................................................76
Appendix A Field Upgrade.................................................................................................77
A.1 MCU...........................................................................................................................................77
A.2 FPGA.........................................................................................................................................80
Appendix B LUT Download ...............................................................................................81
B.1 Gamma Graph Download..........................................................................................................81
B.2 CSV File Download....................................................................................................................83
Appendix C Correction Control.........................................................................................85
C.1 Adjusting and Saving Additional DSNU Correction Value..........................................................86
C.2 Adjusting and Saving Additional PRNU Correction Value..........................................................87

VT Camera Link series
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1 Precautions
General
Do not drop, disassemble, repair or alter the device. Doing so may damage the camera
electronics and cause an electric shock.
Do not let children touch the device without supervision.
Stop using the device and contact the nearest dealer or manufacturer for technical
assistance if liquid such as water, drinks or chemicals gets into the device.
Do not touch the device with wet hands. Doing so may cause an electric shock.
Make sure that the temperature of the camera does not exceed the temperature range
specified in 5.2 Specifications. Otherwise the device may be damaged by extreme
temperatures.
Installation and Maintenance
Do not install in dusty or dirty areas –or near an air conditioner or heater to reduce the risk
of damage to the device.
Avoid installing and operating in an extreme environment where vibration, heat, humidity,
dust, strong magnetic fields, explosive/corrosive mists or gases are present.
Do not apply excessive vibration and shock to the device. This may damage the device.
Avoid direct exposure to a high intensity light source. This may damage the imaging
sensor.
Do not install the device under unstable lighting conditions. Severe lighting change will
affect the quality of the image produced by the device.
Do not use solvents or thinners to clean the surface of the device. This can damage the
surface finish.
Power Supply
Applying incorrect power can damage the camera. If the voltage applied to the camera is
greater or less than the camera’s nominal voltage, the camera may be damaged or operate
erratically. Please refer to 5.2 Specifications for the camera’s nominal voltage.
※Vieworks Co., Ltd. does NOT provide power supplies with the devices.
Make sure the power is turned off before connecting the power cord to the camera.
Otherwise, damage to the camera may result.

VT Camera Link series
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Cleaning the Sensor Surface
Avoid cleaning the surface of the camera’s sensor if possible. If you have dust or foreign matter on the sensor
surface, use a soft line free cotton bud dampened with a small quantity of high quality lens cleaner. Because
electrostatic discharge (ESD) can damage the sensor, you must use a cloth (e.g. cotton) that will not generate
static during cleaning.
Avoid dust or foreign matter on the sensor surface.
The camera is shipped with a protective plastic seal on the camera front. To prevent collecting
dust or foreign matter on the camera sensor, make sure that you always put the protective seal
in place when there is no lens mounted on the camera. In addition, make sure to always point
the camera downward when there is no protective seal on the camera front or no lens mounted.
Procedures for Cleaning the Sensor
If you have dust or foreign matter on the sensor surface, follow the procedures below to wipe off.
1. Remove a contaminant by using an ionizing air gun.
If this step does not remove the contaminant, proceed to the next step.
2. Clean the contaminant of the sensor using one drop of lens cleaner on a non-fluffy cotton bud.
3. Wipe the cotton bud gently in only one direction (either left to right or right to left).Avoid wiping back and
forth with the same cotton bud in order to ensure that the contaminants are removed and not simply
transferred to a new location on the sensor surface.
4. Mount a lens, set the lens at a smaller aperture (e.g. F8), and then acquire images under bright lighting
conditions. Check the images on the monitor for dark spots or stripes caused by the contaminant. Repeat
the steps above until there is no contaminant present.
If sensor is damaged due to electrostatic discharge or the sensor surface is scratched during
cleaning, the warranty is void.

VT Camera Link series
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2 Warranty
Do not open the housing of the camera. The warranty becomes void if the housing is opened.
For information about the warranty, please contact your local dealer or factory representative.
3 Compliance & Certifications
3.1 FCC Compliance
This equipment has been tested and found to comply with the limits for a Class Adigital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct the interference at his own expenses.
3.2 CE: DoC
EMC Directive 2014/30/EU
EN 55032:2012 (ClassA), EN 55024:2010
Class A
3.3 KC
KCC Statement
Type
Description
Class A
(Broadcasting Communication
Device for Office Use)
This device obtained EMC registration for office use (Class A), and may be
used in places other than home. Sellers and/or users need to take note of
this.

VT Camera Link series
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4 Package Components
Package Components
VT-4K7C / VT-4K14C / VT-9K7C / VT-12K5C / VT-18K3.5C Camera with M72 0.75 mount
VT-3K7C / VT-4K5C / VT-6K3.5C Camera with M42 mount

VT Camera Link series
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5 Product Specifications
5.1 Overview
VT series, Time Delay & Integration (TDI) line scan cameras, provides faster line rates and higher sensitivity
than existing line scan cameras. Hybrid imaging sensor technology based on a combination of CCD and CMOS
circuits allows image captures with up to 128 higher sensitivity using the M72 mount based VT-9K7C camera.
Even superior resolution and sensitivity, up to 256 greater sensitivity can be achieved using the VT-18K3.5C
camera. Its robust Camera Link interface supports transmitting image data at up to 125 ㎑using the VT-4K7C
and VT-4K14C cameras. The VT-3K7C, VT-4K5C and VT-6K3.5C cameras which are supporting the M42 mount
feature up to 100 ㎑with 256higher sensitivity. Featured with high speed and high resolution, VT series is
ideal for demanding applications such as flat panel display inspection, wafer inspection, printed circuit board
inspection, and high-performance document scanning.
Main Features
Hybrid Line Scan
Max. 17824 256 Pixel Resolution
Bidirectional Operations with up to 256 TDI Stages
Exposure Control
Anti-blooming
Trigger Rescaler and Strobe Output Control
Camera Link Full Interface up to 120
Advanced PRNU and DSNU Correction
Area Scan Mode for CameraAlignment
Applications
Flat Panel Display Inspection
Printed Circuit Board Inspection
Wafer Inspection
High Performance Document Scanning