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AT-140GE

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9.4.4 Blemish compensation

The AT-140GE has a blemish compensation circuit.
Blemish control has 0:OFF, 1:Black, 2:White and 3:Both. When 1, 2 or 3 is selected, the
stored factory data can be loaded.

Fig.30 Conceptual drawing for blemish compensation

9.4.5 Gamma setting (Look Up Table)

The AT-140GE has various gamma settings
including LUT (Look Up Table). Gamma can be
set OFF (1.0), 0.6, 0.45, or to exhibit
characteristics set using LUT.
The following shows the typical characteristics
in the case of gamma 0.6.

Fig.31. Gamma setting

CCD out

Analog Signal

Digital Out(32bit)

Digital Out(24bit)

Black

Setup 3.6%, 25mV

32LSB

8LSB

200mV

700mV

890LSB

222LSB

230mV

↑

800mV

1023LSB

255LSB

9.4.6 Knee compensation

If the relation of input and output is linear (1:1), the
output signal is saturated at a certain level of the
input signal and details cannot be reproduced in the
saturated area. The knee compensation circuit
maintains linear output up to a knee point and
compresses the level after the knee point. This is set
by a knee slope function. The AT-140GE supports up
to 200% signal compression by knee slope. Factory
default is OFF.

Fig.32 Example of Knee characteristics

Functions

Data length

Setting range

Knee Point

10bit

0LSB

～

1023LSB

Knee Slope

12bit

0(x0.0005)

～

4095(x2.0000)

Defective Pixel

Video Input

V

id

eo

O

ut

pu

t

Knee Slope

Knee Point

Analog Signal [mV]

Black Level

1023

890

32

0

25

700

Di

gi

ta

l

Ou

t

[L

SB

]

100% Level

White Clip Level

835

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Содержание AT-140GE

Страница 1: ...1013E 0912 AT 140GE Digital 3CCD Progressive Scan RGB Color Camera Document Version Ver 1 0 AT 140GE_Ver 1 0_Dec09 User Manual...

Страница 2: ...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 resi...

Страница 3: ...asures 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 envir...

Страница 4: ...isolated Inputs Outputs 16 7 2 1 Recommended External Input circuit diagram for customer 16 7 2 2 Recommended External Output circuit diagram for customer 17 7 2 3 Optical Interface Specifications 17...

Страница 5: ...timing Normal continuous mode 37 9 6 4 Horizontal timing Partial scan mode 38 9 6 5 Vertical timing Partial scan mode 38 9 6 6 Horizontal timing Vertical binning mode 39 9 6 7 Vertical timing vertica...

Страница 6: ...net for machine vision applications and it was mainly set up by AIA Automated Imaging Association members GigE Vision is capable of transmitting large amounts of uncompressed image data through an ine...

Страница 7: ...e CAT5e or CAT6 4 Computer CPU Intel Core Duo 2 2 4GHz or more Memory 2GB recommended Video card PCI Express Bus x 16 connection VRAM DDR2 with 256MB or more DVI capable of display 2560 x 1600 pixels...

Страница 8: ...combination with a linear color matrix the AT 140GE provides a higher fidelity of color reproduction The AT 140GE also incorporates a dynamic shading circuit gamma correction circuit and knee correcti...

Страница 9: ...or Adobe RGB pre setting Knee function available for knee point and knee slope settings Shading compensation circuit built in Blemish compensation ON OFF Noise reduction circuit ON OFF level settings...

Страница 10: ...rizontal type 2 10 Mounting holes M3 max length 5mm 3 1 Note Applicable C mount lens should be designed for 3 CCD cameras Rear protrusion on C mount lens must be less than 4mm Be advised when using a...

Страница 11: ...ontinuous mode Flashing green The camera is receiving external trigger Ethernet connector indicates Steady green 1000 Base T has been connected Flashing green 100 Base TX has been connected Note Flash...

Страница 12: ...environments Please contact the nearest JAI distributor for details on recommended industrial RJ 45 connectors Fig 4 Gigabit Ethernet connector The digital output signals follow the Gigabit Ethernet i...

Страница 13: ...e1 Can be changed by DIP switch SW600 5 4 DIP switch DIP switches are located on circuit boards When the top cover is removed please pay careful attention so that circuit boards may not be damaged 5 4...

Страница 14: ...ing ON OFF 1 EEN output select Open collector EEN TTL XEEN 2 NC Fig 7 SW100 Right board looking from the front 5 4 3 SW 700 This DIP switch can select OPT IN or Iris video output through pin 3 and 4 o...

Страница 15: ...differentiated spikes caused by the falling or rising trigger edges The trigger polarity can be changed Trigger input level is 4 V 2 V It can be terminated by SW600 ON for 75 OFF for TTL Factory defau...

Страница 16: ...l and does not have SYNC It is available only in Continuous mode and RCT mode It is also not available in partial scan mode This signal is not affected by the gain control CCD out Analog Out 200mV 700...

Страница 17: ...inputs and outputs freely The signals LVAL_IN DVAL_IN FVAL_IN and EEN_IN all originate from the camera timing circuit Trigger 0 is connected to the camera s timing circuit and is used for initiating t...

Страница 18: ...edge falling edge high level or low level of the input signal In periodic mode the trigger continuously generates a signal that is based on the configured pulse width starting point and end point 7 2...

Страница 19: ...rface Specifications The relation of the input signal and the output signal through the optical interface is as follows User Power VCC 3 3V 5V 12V 24V Time Delay Rising TDR s 0 54 0 54 0 62 0 68 Risin...

Страница 20: ...OUT 1 TTL OUT 2 Time Stamp Reset Seq Reset Pulse Gen 0 Pulse Gen 1 Input Port LVAL IN DVAL IN FVAL IN EEN IN OPT IN 1 OPT IN 2 TTL IN LVDS IN Soft Trigger 0 Soft Trigger 1 Soft Trigger 2 Soft Trigger...

Страница 21: ...inal For the details please refer to Register Map Digital I O Acquisition and Trigger Control and Pulse Generator Line Selector Line Source Line Polarity 7 4 2 12 bit counter Address Internal Name Gen...

Страница 22: ...original oscillation uses pixel clock 60 MHz and the pixel clock is divided by 2400 A pulse frequency of the generator is 25 KHz 60000000 2400 As the start point is 0 and the end point is 99 a pulse h...

Страница 23: ...r Timing Example 1 LUT Cross Point Switch Pulse Generator 1 20 bit Counter Pulse Generator 0 20 bit Counter 12 bit Counter TRIGGER 1 TRIGGER 2 TTL OUT 2 OPT OUT 1 OPT OUT 2 Time Stamp Reset Sequence R...

Страница 24: ...r 11 pulse generator 0 LUT Cross Point Switch Pulse Generator 1 20 bit Counter Pulse Generator 0 20 bit Counter 12 bit Counter TRIGGER 1 TRIGGER 2 TTL OUT 2 OPT OUT 1 OPT OUT 2 Time Stamp Reset Sequen...

Страница 25: ...or 10 bit video level is 890 LSB 200 mV CCD output level equals 100 video output Fig 20 Digital output 10 bit output 8 2 Bit Allocation Pixel Format Pixel Type In the GigE Vision Interface GVSP GigE V...

Страница 26: ...e trigger through the GigE Vision interface However when using a software trigger certain latency inherent to the GigE interface must be expected This latency which manifests itself as jitter greatly...

Страница 27: ...Mbit s RGB10V1Packed RGB10V2Packed 20 77 fps Note 1 972 Mbit s Note1 depending on the packet size the frame rate of 20 77 fps may not be achieved It may be reduced to 18 to 19 frames per seconds This...

Страница 28: ...ket Size Bytes 62 Formula to calculate Data Transfer Rate J 90 62 E 18 G 2 8 D 1000000 Where G ROUNDUP A B C 8 E 36 2 The following table shows Bits per Pixel Item C which depends on the pixel format...

Страница 29: ...en from each 1 45 mega CCD which are filtered to the red green and blue spectral wavelengths A 32 bit microprocessor controls all functions in the AT 140GE camera The CCD sensor output is normalized i...

Страница 30: ...frame rates This is very useful when capturing and inspecting an image which does not require the full height Full scan Partial Scan Fig 22 Partial scan conceptual drawing The partial scan mode for t...

Страница 31: ...r the upper part Round up 4 Start line 1 4 1 Fast dump period for the lower part Roud up 1040 End line 2 4 Calculation example Readout 1 2 partial scan at the center 520L Start line 261 End line 780 O...

Страница 32: ...ntrolled from 0L to 1056L in 1 LVAL units 45 58 s Calculating actual shutter speed requires adding 0 5L to the setting value This is because there is 0 5L overhead The resulting range is from 0 5LVAL...

Страница 33: ...r to 7 5 1 GPIO Plus PWC shutter Auto shutter The AT 140GE has an automatic shutter function which sets the video at an appropriate level depending on illumination Auto shutter range 1 25 sec to 1 250...

Страница 34: ...ns used with AT 140GE In order to get an appropriate picture it is recommended to use 1 2 inch 3CCD lenses Shading is dependent on F value and focal length Using a wide angle lens or using the lens fu...

Страница 35: ...s than 0dB R and B gain can not be controlled up to 6dB For instance if the master gain is set at 3dB the saturation level of R and B gain is deteriorated under 0dB 9 4 3 Linear matrix The AT 140GE in...

Страница 36: ...LSB 8LSB 200mV 700mV 890LSB 222LSB 230mV 800mV 1023LSB 255LSB 9 4 6 Knee compensation If the relation of input and output is linear 1 1 the output signal is saturated at a certain level of the input s...

Страница 37: ...stem The AT 140GE has a total of 6 test pattern types Value Description 0 OFF 4 Horizopntal Ramp Scale 5 Vertical Ramp Scale 6 Moving Ramp Scale 8 Normal Color Bar 9 Vertical Color Bar 10 Moving Color...

Страница 38: ...and timing 9 6 1 CCD Sensor Layout Fig 34 CCD sensor layout blank Read Out Vertical 1050 Active Pixels 1392 H x1040 V Optical Black Lines Optical Black Lines 1392 2 4 0 8 2 blank 1958 Clock Read Out H...

Страница 39: ...k 1392 ck 1958 ck 1434 ck 524 ck 1 ck 42 954 NHz 23 28 ns ck 1866 ck 86 ck 92 945 ck 859 ck 86 167 20 ck 524 ck 524 ck 2 ck FVAL Rising Edge FVAL Falling Edge 1 LVAL Period Effective Pixels Exposure...

Страница 40: ...xample 1 8 partial scan setting DA T A OUT DV A L C C D Ou t F V A L S UB S G E E N L V A L X E E N H i rose 12pi n Dummy Bl ank OB Res er v ed OB 40c k Res er v ed 2 1392c k 1434c k 1392 ck 1958 ck 1...

Страница 41: ...KHz 59 45 fps 9 6 6 Horizontal timing Vertical binning mode Fig 39 Horizontal timing for V binning D A T A OUT D V A L C C D Ou t F V A L S UB S G E E N L V A L X E E N H i rose 12pi n Dummy Bl ank O...

Страница 42: ...ynchronous external triggering this mode should be used In this mode it possible to use a lens with a video controlled iris For timing details refer to fig 35 through fig 40 To use this mode Set funct...

Страница 43: ...et function Exposure mode Edge pre select Pixel format RGB8 10V1 10V2 Partial scan Fast dump ON ROI Vertical binning Binning vertical ON Shutter mode Programmable Exposure Time Abs GPIO setting Import...

Страница 44: ...Fig 43 Edge Pre select LVAL ASYNC details 1 5L DATA out t1 1L M ax FVAL EEN LVAL XEEN Hirose 12pi n 13 5L Ext Trigger Exposure Period Exposure Delay Data Out Delay Exposure Period DATA out 1 to 2L Ex...

Страница 45: ...mode Set function Exposure mode Pulse width control Pixel format RGB8 10V1 10V2 Partial scan Fast Dump ON ROI Vertical binning Binning vertical ON GPIO settings Important notes on using this mode Tri...

Страница 46: ...arless function is ON the real exposure time is the period which the smearless period 352L is deducted from the trigger active period If the input trigger pulse width is shorter than 352L accumulation...

Страница 47: ...this mode Set function Exposure mode RCT Pixel format RGB 8 10V1 10V2 Partial scan Fast Dump ON ROI Vertical binning Binning vertical ON Shutter mode Programmable Exposure Time Abs GPIO settings Impo...

Страница 48: ...3 1392 1040 0 1 1056 0 1 4 1392 1040 0 1 1056 0 1 5 1392 1040 0 1 1056 0 1 6 1392 1040 0 1 1056 0 1 7 1392 1040 0 1 1056 0 1 8 1392 1040 0 1 1056 0 1 9 1392 1040 0 1 1056 0 1 10 1392 1040 0 1 1056 0...

Страница 49: ...it allows the cameras to be read out in sequence preventing congestion The image data is not transmitted directly by the trigger 0 and is stored in the memory located at the Ethernet Interface By the...

Страница 50: ...dumped by a high speed transfer This can reduce the smear that appears above the bright area but the smear below the area is unaffected At the falling edge of the trigger pulse the high speed transfe...

Страница 51: ...ptical black transfer ON or OFF The default condition is OFF OB Transfer Mode OFF OB Transfer Mode ON Normal Scan 1 1024 1 1040 1 1392 1408 1 1040 Fast Dump Partial Scan 1 1392 1 1 1392 1408 1 Vertica...

Страница 52: ...ROI conceptual drawing 9 8 Mode and functions matrix ID Mode Shutter Programmable Exposure Abs Auto shutter V Binning Partial scan Smear less Multi ROI LVAL Sync Async Auto Iris output 0x00 Continuou...

Страница 53: ...AT 140GE 51 10 External Appearance and Dimensions Note Rear protrusion on C mount lens must be less than 4 0mm Fig 52 Outline...

Страница 54: ...2 11 Specifications 11 1 Camera sensitivity response Fig 53 AT 140GE Camera Sensitivity response 400 500 600 700 100 80 60 40 20 AT 140GE Camera Sensitivity Response Wave length nm Relative Sensitivit...

Страница 55: ...OSE 12 pin OPT x 2 HIROSE 6 pin TTL 75 x 1 LVDS x 1 Outputs HIROSE 12 pin OPT x 2 HIROSE 6 pin XEEN output 4 V p p from 75 source TTL 75 GPIO Module Input Output switch Clock Generator one Pulse gener...

Страница 56: ...bration 3 G 15 Hz 200 Hz in XYZ Shock 50 G Regulations CE EN 61000 6 2 EN 61000 6 3 FCC part 15 class B RoHS Power 10 8V to 26 4V DC 0 61 A Typical Full frame 12V input 0 68 A Typical 1 8 partial 12V...

Страница 57: ...offset 0 0xA514 ROI 2 Width Width2 RW 4 8 1392 Width 2 W Max 0xA518 ROI 2 Height Height2 RW 4 8 1040 Height 2 H Max 0xA51C ROI 2 Offset X OffsetX2 RW 4 0 1384 Offset X2 0 0xA520 ROI 2 Offset Y OffsetY...

Страница 58: ...8 Normal Color bar 9 Vertical Color Bar 10 Moving Color Bar 0 0xA41C OB Transfer Enable OBTransferEnable RW 4 Acquisition and Trigger Control Address Display Name JAI Control Tool GenICam name Read W...

Страница 59: ...alling Edge Active Low Trigger Source 127 OFF 9 Line4 OpticalIn 1 10 Line5 optical In 2 12 Line6 TTL In 1 13 Line7 TTL In 2 11 Line8 LVDS In 16 Pulse Generator0 17 Pulse Generator1 20 User Output 0 So...

Страница 60: ...0xA154 Black Level Selector Digital Red BlackLevelRaw DigitalR R W 4 0 to 1023 0xA158 Black Level Selector Digital Green BlackLevelRaw DigitalG R W 4 0 to 1023 0xA15C Black Level Selector Digital Blu...

Страница 61: ...White blemish 3 Both blemish 0 0xA130 Perform Flat Shading Calibration PerformFlatShadingCalibr ation WO 4 Command 0 Perform Color Shading Calibration PerformColrShadingCalibr ation Command 1 0x10000...

Страница 62: ...m name Read Write Size Value Range of value Description Default value 0xA600 User Output Selector UserOutputSelector RW 4 Bit31 User Output 0 Bit30 User Output 1 Bit29 User output 2 Bit28 User Output...

Страница 63: ...e Generator Length 1 PulseGeneratorLength1 RW 4 1 1048575 Defines the length of the counter 1 1 0xB020 Pulse Generator Start Point 1 PulseGeneratorStartPoint 1 RW 4 0 1048574 Defines the starting poin...

Страница 64: ...SequenceAnalogRed RW 4 200 200 INDEX 0 to 9 Sequence Base Address Index 12 4 0 Sequence Gain Blue SequenceAnalogBlue RW 4 200 300 INDEX 0 to 9 Sequence Base Address Index 12 8 0 0xC0FC Sequence ROI S...

Страница 65: ...bnetAddress R 4 0x0044 Current Default Gteway GevCurrentDefaultGatew ay R 4 0x0200 First URL GevFirstURL R 512 File extension XML indicates uncompressed text file File extension ZIP indicates compress...

Страница 66: ...eature GevCCP R 4 0 Open Access 1 Exclusive 2 Control 3 Exclusive Control control channel privilege register 0 0x0B00 Message Channel Port GevMCPHostPort R 4 message channel port register 0 0x0B10 Mes...

Страница 67: ...ventStartOfTransfer 3 0 Frame Transfer End GevEventEndOfTransfer 4 0 Any Lines Any Edges AnyLineAynyEdge 17 0 Updated All Features UpdatedAllFeatures 18 1 Processing Done ProcessingDone 19 1 Video Par...

Страница 68: ...s Over time some pixel defects can occur This does not have a practical effect on the operation of the camera These will show up as white spots blemishes Exposure to cosmic rays can cause blemishes to...

Страница 69: ...ount the tripod mounting plate please use the provided screws 5 Exportation When exporting this product please follow the export regulation of your own country 6 References 1 This manual and datasheet...

Страница 70: ...AT 140GE 68 Change history Date Revision Changes Dec 2009 1 0 New release...

Страница 71: ...e 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 doc...

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