There is an image intensifier image contrast in the image intensifier’s technical parameters. What is the image contrast in image intensifiers? What is the image contrast of the image intensifier in the image intensifier TV system?
The image contrast in image intensifiers is a 2mm thick circular X-ray shielding lead plate corresponding to 10% of the effective area of the input surface at the center of the image intensifier entrance surface, and the maximum of the lead screen portion is not observed from the output screen. The ratio of the brightness to the brightness of the shielded portion of the board is called the image contrast.
Therefore, the image contrast in image intensifiers is as large as possible, the contrast of the image is larger, and the image enhancement of the image intensifier is better, and the quality of the image intensifier can be ensured. Image contrast is currently 6:1, 12:1, 15:1 or higher.
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