JAI TM-9730CL, Руководство пользователя

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Operation 11
TM/TMC/RM/RMC-9730CL
The TM-9730CL outputs the progressive scan image with an electronic shutter in two different
formats:
•
Progressive scanning digital and analog output
The CCD signal goes through A/D and D/A converters and through 10-bit in, 8-bit out look-up table
(LUT). The digital output is available from 26-pin Camera Link connector.
The analog output is the same as 75 Ω , 1Vp-p format at 30Hz rate available from BNC and 12-pin
connector.
Note: Minimal blooming may occur due to the nature of the CCD.
3.3 Electronic Shutter
For more information about the electronic shutter, please see Section 1.2 on page 1.
3.4 Programmable Look-Up Table (LUT) and Knee Control
The TM-9730CL has a built-in LUT (look-up table) for dynamic range control.
At a specific gain setting, the offset (minimum level.... dark point) and A/D reference top voltage
(maximum level... saturation point) are set to 10-bit A/D input so that the full dynamic range of the
CCD is utilized at 10-bit references as the input and the LUT output is converted into 8-bit to adjust
the gamma correction.
Note: The knee LUT may not work with the Automatic Level Control since the results are unstable.
LUT selection:
•
Linear / Gamma
•
Knee LUT
−
Pre-defined Knee LUT
−
User defined Knee LUT
(Caution: Knee LUT may cause ALC function to be unstable)
3.5 Scan Modes
The TM-9730CL supports the following scan modes:
Figure 8. Progressive scan
3.5.1 Full Progressive Scan
The normal scan mode progressively scans a full frame of 768 x 484 pixels at 30 frames per second
using the standard 14.318MHz pixel clock and a single channel output. In contrast to interlace-scan
cameras, all of the 484 lines in the frame are exposed simultaneously per image capture.