Camera obscura system for automatic test of low-light image intensifier

Abstract

The invention relates to a camera obscura system for the automatic test of a low-light image intensifier. The camera obscura system is composed of an installation desktop, a vertical light path camera obscura assembly, a camera obscura bottom plate assembly, a lifting platform assembly, a test housing assembly, and a power supply contact nail assembly, and the camera obscura bottom plate assembly and the test housing assembly are located in the vertical light path camera obscura assembly; the vertical light path camera obscura assembly is provided with a projection light path window and a detection light path window which are located at the bottom and the top of the vertical light path camera obscura assembly respectively along a middle axis, and jointly form a vertical light path needed by testing; the center of the camera obscura bottom plate assembly is provided with the test housing assembly, and the edge is provided with the vertical light path camera obscura assembly; the lifting platform assembly lifts the vertical light path camera obscura assembly in a program control mode; the test housing assembly is used for positioning and installing an image intensifier; and the power supply contact nail assembly is used for power-on connection of the image intensifier. The camera obscura is formed through the designed vertical light path, a darkroom environment is not needed in the testing process, and the zoom requirement is met through the vertical light path camera obscura capable of being controlled to ascend and descend in a programmable mode.

Description

technical field [0001] The invention relates to the field of testing performance parameters of low-light image intensifiers, in particular to a dark box system for automatic testing of low-light image intensifiers. Background technique [0002] The image intensifier is an electric vacuum device, which is composed of several optical devices and metal structural parts. Its performance index parameters mainly refer to the photoelectric characteristics of the image intensifier, including sensitivity, resolution, transmission, signal-to-noise ratio, brightness gain, Equivalent background, field of view uniformity, field of view defects, magnification distortion and other characteristic values ​​can comprehensively reflect the product function and performance of the image intensifier. The performance parameters of the image intensifier are detected on the corresponding test equipment. During the test, the image intensifier needs to work under the radiation pattern with specified a...

AI Technical Summary

Problems solved by technology

[0011] In order to solve the above-mentioned problems in the prior art, especially the current situation that manual operation is required in a dark room and a dark box, the present invention provides an efficient, high-precision, high-reliability and easy-to-operate automatic tester for low-light image intensifiers Black box system, when realizing the automatic test of the low-light image intensifier, a system can solve the following problems:

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