JAI LT-400CL User manual

1011E-0909
LT-400CL
3CMOS High Speed Color
Line Scan Camera
Document Version: Ver.1.3
LT-400CL_Ver.1.3_Nov2011
User's Manual

LT-400CL
2
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 residential 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 u se period of containe d Hazard ous
Substances is 15 years.
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方忖仝15々葎豚㍉15定。

LT-400CL
3
-Contents –
1. General ........................................................................................................ 5
2. Camera nomenclature ...................................................................................... 5
3. Main features ................................................................................................. 5
4. Locations and functions.................................................................................... 6
4.1. Main unit................................................................................................ 6
4.2. Rear Panel and indicators............................................................................ 7
Note: Factory default settings for both functions are “OFF”. ............................................. 7
5. Input and output (connectors, signals and circuits)................................................... 8
5.1. 12-Pin Connector (Hirose) ............................................................................. 8
5.2. Digital Output / Interface Connectors for Camera Link......................................... 8
5.3. Camera Link output ................................................................................... 9
5.4. Input and output circuits............................................................................11
5.4.1 Trigger input ......................................................................................11
5.4.2 EEN/XEEN output (Exposure Enable ) ...................................................... 11
6. Functions and Operation..................................................................................12
6.1. Basic functions ........................................................................................12
6.2. Sensor layout and output timing ...................................................................12
6.3. Key functions..........................................................................................13
6.3.1 Line rate (Command LR) ........................................................................13
6.3.2 Electronic shutter (Exposure) (Command PER, PEG, PEB).................................13
6.3.3 EEN (Exposure Enable) function ...............................................................14
6.3.4 White balance ....................................................................................14
6.3.5 Gain control.......................................................................................15
6.3.6 Setup level ........................................................................................16
6.3.7 Knee correction ..................................................................................17
6.3.8 PRNU (Pixel Response Non-Uniformity ) correction.........................................17
6.3.9 DSNU (Dark Signal Non-Uniformity) correction ..............................................18
6.3.10 Shading correction ...............................................................................19
6.3.11 Binning .............................................................................................20
6.3.12 Sub-sampling......................................................................................20
6.3.13 Windowing.........................................................................................20
6.3.14 Test pattern generator..........................................................................20
6.4. Operation modes .....................................................................................22
6.4.1 No-shutter mode with internal trigger........................................................22
6.4.2 No-shutter mode with external trigger .......................................................24
6.4.3 Shutter-select mode with internal trigger ...................................................26
6.4.4 Shutter-select mode with external trigger...................................................28
6.4.5 Pulse Width Control (PWC) mode..............................................................31
6.4.6 Compatibility of trigger modes and functions ...............................................33
7. Configuring the camera...................................................................................34
7.1. RS-232C control.......................................................................................34
7.2. LT-400CL Command list .............................................................................35
8. Functions listed alphabetically by command acronyms .............................................40
8.1. Command AH –One-push AWB shutter............................................................40
8.2. Command AHRS –Request status after One-Push AWB .........................................40
8.3. Command AL –Automatic Line Rate Reference Level ..........................................40
8.4. Command AR –Automatic Line Rate setting .....................................................40
8.5 Command ARST –Auto reset mode................................................................41
8.6Command AW –Activate One-push Auto White Balance (AWB) - Gain ......................41
8.7 Command AWRS –Inquire the status after one-push AWB.....................................41
8.8 Command BA –Bit Allocation.......................................................................41
8.9 Command BI –Binning (Horizontal only)..........................................................42
8.10 Command BL –Master Black Level ................................................................42

LT-400CL
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8.11 Commands BLR and BLB –Black level red and black level blue .............................. 42
8.12 Command BLM –Black level mode ................................................................ 42
8.13 Command EI –Interlocked R and B exposure with G ........................................... 42
8.14 Command GA –Gain level master / G channel.................................................. 43
8.15 Commands GAR and GAB –Red and blue gain levels........................................... 43
8.16 Command GM –Gain mode ......................................................................... 43
8.17 Command KN –Knee ON/Off....................................................................... 43
8.18 Commands KSR, KSG and KSB –Knee slope for R, G and B.................................... 43
8.19 Commands KPR, KPG and KPG –Knee point for R, G and B ................................... 43
8.20 Command LR - Line Rate (Scan Rate) ............................................................ 44
8.21 Command NR –Noise reduction ................................................................... 44
8.22 Command PBC –Select pixel black correction mode........................................... 44
8.23 Command PBR –Run pixel black correction and store to user area ......................... 44
8.24 Command PBS –Inquire the status of after pixel black correction .......................... 45
8.25 Command PER –Programmable exposure –Red................................................. 45
8.26 Command PEG –Programmable exposure –Green ............................................. 45
8.27 Command PEB –Programmable exposure –Blue................................................ 45
8.28 Command PGC –Pixel gain correction mode .................................................... 45
8.29 Command PGR –Run pixel gain correction and store in user area........................... 46
8.30 Command PGS –Inquire the status after pixel gain correction............................... 46
8.31 Command SDC –Select shading correction mode............................................... 46
8.32 Command SDR –Run shading correction ......................................................... 46
8.33 Command SDS –Request status after executing shading correction command ............ 48
8.34 Commands SGR,SGG,SGB –Gain Low, High...................................................... 48
8.35 Command SRO –Sensor read out .................................................................. 48
8.36 Command TG –Trigger Origin...................................................................... 48
8.37 Command TI –Trigger input........................................................................ 48
8.38 Command TP –Trigger polarity.................................................................... 49
8.39 Command TR –Trigger Mode....................................................................... 49
8.40 Command TS –Test pattern........................................................................ 49
8.41 Command WB –White Balance .................................................................... 49
9. Camera Control Tool for LT-400CL ..................................................................... 50
10. External appearance and Dimensions .................................................................. 53
11 . Specifications............................................................................................ 55
11.1 Typical data............................................................................................ 55
11.2 Spectral sensitivity.................................................................................... 58
Appendix .......................................................................................................... 59
1. Precautions .............................................................................................. 59
2. Typical Sensor Characteristics........................................................................ 59
3. Caution when mounting a lens on the camera..................................................... 59
4. Caution when mounting the camera................................................................. 59
5. Exportation .............................................................................................. 60
6. References............................................................................................... 60
Change History ................................................................................................... 61
User's Record ..................................................................................................... 62

LT-400CL
5
1. General
LT-400CL is a 3CMOS line scan camera using three 4096 pixel line 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 x 1
Lens mount/sensor protection cap x 1
The camera is available in the following versions:
LT-400CL-M52/-F
Where L stands for “Linear sensor” family, Tstands for “Tri sensor”, 400 represents the
resolution “ 4000 pixels”, 400represents variation with the same resolution and CL stands for
“CameraLink®” interface. M52 stands for M52 lens mount version and F stands for the Nikon F
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 each 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 232C or Camera Link
Setup by Windows XP software

LT-400CL
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4. Locations and functions
4.1. Main unit
Fig. 1 Location of external features
1 Camera Link base connector (1) (*Note1)
2 Camera Link medium connector (2) (*Note1)
3 12-pin Hirose connector for DC +12, External trigger and RS-232C
4LED indicator Orange, steady: Initializing or one-push operation
Green, steady: Operating, but not receiving external trigger
Green, flashing: Operating and receiving external trigger
5One-push auto white balance button
6 SW-1 (refer to chapter 4.2)
7. M52 lens mount (Note 2)
8 Nikon F-Mount lens mount(Note2)
9 Mounting holes 8 x M3, depth 5mm (*Note3)
*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).Tightening by
hand is sufficient in order to 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.
SW1
/ TRIG
DC IN
W.B.
TRIG
POWER/
DIGITAL I/ O - 2 DIGITAL I/ O - 1
Serial No.
FCC seal
①
②
③④
⑤
⑥
⑦
⑧⑨
⑨

LT-400CL
7
4.2. Rear Panel and indicators
Fig.2 Rear panel
LED
There is a multi-color LED on the rear panel of the camera. It has the following functions:
Green (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
Push button
This push button is used for gain white balance.
DIP switch
SW-1 function
No
Function
Settings
ON
OFF
1
Serial communication
Hirose 12Pin
Camera link (CC1)
2
Termination of External trigger
75Ω
TTL
Note: Factory default settings for both functions are “OFF”.
Fig.3 DIP switch
Rear panel indicator LED
OFF ON
Serial
Communication
75 Ω
Push button
DIP switch

LT-400CL
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5. Input and output (connectors, signals and circuits)
5.1. 12-Pin Connector (Hirose)
Type: HR10A-10R-12PB(71) Hirose (Male)
Use the part number HR10A-10P-12S for the cable side
Pin No.
Signal
Remarks
1
GND
2
DC in
+12V to +24V
3
GND
4
Reserved
Do not connect
5
GND
6
RxD in
RS-232C
7
TxD out
RS-232C
8
GND
9
XEEN out
10
Trigger in
TI=1, or set TI=0 for input via CL
11
NC
12
GND
5.2. Digital Output / Interface Connectors for Camera Link
Type: 26P MRD Connector 3M 110226-1A10PL
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 JAI Camera Solutions
cannot be held responsible for loss in performance or damage of equipment, including the
camera.
Recommended cable assembly
3M 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 be
used but the length will be limited.
Connector 1 (24Bit, 30 Bit)
Pin No
In/Out
Name
Note
1,14
Shield
GND
2(-),15(+)
O
TxOUT0
Data out
3(-),16(+)
O
TxOUT1
4(-),17(+)
O
TxOUT2
5(-),18(+)
O
TxClk
Clock for CL
6(-),19(+)
O
TxOUT3
Data out
7(+),20(-)
I
SerTC (RxD)
LVDS Serial Control
8(-),21(+)
O
SerTFG (TxD)
9(-),22(+)
I
CC1 (Trigger)
Trigger
10(+),23(-)
I
CC2(Reserved)
11,24
N.C
12,25
N.C
13,26
Shield
GND
Fig.4 12-pin Hirose connector

LT-400CL
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Connector 2 ( Used only for 3 x 10 Bit output)
Pin No
In/Out
Name
Note
1,14
Shield
GND
2(-),15(+)
O
TxOUT0
Data out
3(-),16(+)
O
TxOUT1
4(-),17(+)
O
TxOUT2
5(-),18(+)
O
TxClk
Clock for CL
6(-),19(+)
O
TxOUT3
Data out
7(+),20(-)
N.C
8(-),21(+)
N.C
9(-),22(+)
N.C
10(+),23(-)
N.C
11,24
N.C
12,25
N.C
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～RD0 : R Channel Camera Data(RD9=MSB, RD0=LSB)
GD9～GD0 : G Channel Camera Data(GD9=MSB, GD0=LSB)
BD9～BD0 : B Channel Camera Data(BD9=MSB, BD0=LSB)
×: Not in use