Abstract
In consideration of stray light sources of a star photoelectric-detection system,this paper analyzes the generation of the stray light and its transmission characteristics,and proposes how to evaluate the effects of stray light on the photoelectric-detection system.A reasonable suppression scheme for the stray light is provided for guiding the design of opto-mechanical structure of the system.Then the main baffle,baffle vane and the coating technology are used to eliminate the effect of stray light on the opto-mechanical structure.The opto-mechanical structure of the system is simulated by a software and the results show that their Point Source Transmittances(PSTs) before and after eliminating the stray light have been reduced by two orders of magnitude between 10-8 and 10-10.Meanwhile,the obtained detection data in experimental field demonstrate that the scheme can extract a detection im-age with 5 star magnitudes,and the stray light has been suppressed effectively.
Published Version
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