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Functions and Operations
TM/TMC-4200CL Series Progressive Scan Cameras
A typical CCD camera does not use the full dynamic range due to the nominal gain and the output
specification such as RS-170. The typical CCD camera’s gain is set at 16 to 22 dB and the RS-170
video level is 714 mV. Using 20 dB gain for the calculation, CCD output is limited to 714/10 = 71.4
mV. Since the CCD’s saturation voltage is 400 mV to 500 mV, it uses less than 1/5 of the full dynamic
range.
Machine vision and outdoor applications, cannot afford to miss image information behind the
saturation, which is why the dynamic range adaptation is critical.
6.5.1 Programmable Look-Up Table (LUT) and Knee Control
The TM-4200CL 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 12-bit A/D input so that the full dynamic range of the
CCD is utilized at 12-bit references as the input and the LUT output is converted into either 8-bit or 10-
bit to adjust the gamma correction. There is no 12-bit LUT.
The look-up table has two knee points (variable gamma selection) that allow the 10-bit input to be
segmented into three regions. The look-up table selection can be made by knee curve direct input.
- Operation Manual 1
- Warranty 3
- Certifications 3
- List of Figures 7
- Page viii 8
- List of Tables 10
- Dual-Tap TM-4200CL AccuPiXEL 11
- Camera-Control Software 11
- 1.1.2 Installing the Software 12
- CAMERA LINK 16
- 3 Graphical User Interface 17
- FIGURE 8. Setting up CamLink 18
- 3.3.2 Exposure Control 19
- Graphical User Interface 19
- 3.3.3 Gain Control 22
- 3.3.4 Offset Voltage 22
- Tap Selection: 23
- 3.3.7 Trigger 24
- 3.3.8 LUT (Look-Up Table) 24
- 3.3.9 Report Section 26
- 3.3.10 Main Menu: “Option” 26
- 3.3.11 EEPROM 27
- 3.3.13 Main Menu “About” 28
- 3.3.14 Exit 28
- Scan Cameras 29
- 4.2 Features 30
- 4.3 System Configuration 31
- 5 Installation 32
- TABLE 1. 12-Pin Connector 33
- FIGURE 36. Hirose Connector 33
- Installation 34
- Thumbscrews 35
- External sync input 36
- Analog Ch. A only 36
- FIGURE 42. Camera Connectors 38
- 6.2 Sensor Layer and Timing 39
- Camera Timing Chart 40
- 6.3 Scan Area 41
- FIGURE 47. Bayer 1 43
- FIGURE 48. Bayer 2 43
- FIGURE 49. 2x2 Binning 44
- Functions and Operations 45
- 6.4 Electronic Shutter 48
- TABLE 5. Timing Chart 52
- 6.5 Dynamic Range Control 54
- 7 Serial Communication Kit 57
- 7.2 TM-4200CL Command List 58
- Serial Communication Kit 59
- 8 Problems and Solutions 64
- Problems and Solutions 65
- 9 Appendix 66
- Appendix 67
- 9.1.2 Spectral Response 67
- Imaging Products 69
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