Optimal Design of Optical Engine for Star Simulators Based on LCoS Splicing

Yao, 孟遥 Meng; Guoyu, 张国玉 Zhang; Gaofei, 孙高飞 Sun; Shi, 刘石 Liu; Yun-shuai, 赵云率 Zhao

doi:10.3788/gzxb20174603.0312002

Cited by 5 publications

(1 citation statement)

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“…Although some progress has been made in the field of image simulation for space-based applications, this method is only validated for observation algorithms, and optical imaging methods for simulation images are still lacking for performance evaluation of space-based observation equipment. Changchun University of Science and Technology [8] applied the LCOS splicing display technology to the development of a dynamic star simulator; the star position simulation error was better than 25 ′′ , and the magnitude simulation error was better than ±0.5 Mv.…”

Section: Introductionmentioning

confidence: 99%

Research on Optical System of Dim Target Simulator Based on Polarization Stray Light Suppression

Liu,

Zheng

et al. 2024

Applied Sciences

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In view of the lack of high-precision optical simulation equipment for dim space targets at present, in this study, a simulation method for dim space targets based on polarization stray light suppression is proposed, the overall optical system architecture of the optical engine for depolarization stray light suppression is constructed, the mechanism of stray light generation is explored, and the dark state light leakage suppression method is presented by compensating the phase of LCOS reflected light with wave plate; a high-image quality collimating optical system with large field of view and flat aberration is designed based on the illumination system optimization method of the critical angle matching of the spectroscopic film; and the polarization stray light suppression effect and star position simulation error of the dim target simulator are tested. The test results show that the illumination of the simulated dim target is ≮10−10 lx, the contrast is 6.96, the non-uniformity of the bright state is only 5.88%, and the simulation error of the star position is 9.9″. This research can make some contributions to enhancing the observability of detecting dim targets, breaking through the detection technology of extremely dark targets in space, developing advanced deep space detection capabilities, and improving the engineering technology system of deep space exploration.

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Section: Introductionmentioning

confidence: 99%