Current Optics and Photonics

Optical Society of Korea (한국광학회)
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Design of Projection Optical System for Target Imaging Simulator with Long Exit Pupil Distance

  • Xueyuan Cao (Department of Optoelectronic Engineering, Changchun University of Science and Technology) ;
  • Lingyun Wang (Department of Optoelectronic Engineering, Changchun University of Science and Technology) ;
  • Guangxi Li (Department of Optoelectronic Engineering, Changchun University of Science and Technology) ;
  • Ru Zheng (Department of Optoelectronic Engineering, Changchun University of Science and Technology)
  • Received : 2023.07.13
  • Accepted : 2023.11.06
  • Published : 2023.12.25
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Abstract

In order to test the recognition ability and accuracy of a target imaging simulator under the irradiation of solar stray light in a laboratory environment, it needs to be fixed on a five-axis turntable during a hardware-in-the-loop simulation test, so the optical system of the simulator should have a long exit pupil distance. This article adopts a secondary imaging method to design a projection optical system suitable for thin-film-transistor liquid crystal displays. The exit pupil distance of the entire optical system is 1,000 mm, and the final optimization results in the 400 nm-850 nm band show that the modulation transfer function (MTF) of the optical system is greater than 0.8 at the cutoff frequency of 72 lp/mm, and the distortion of each field of view of the system is less than 0.04%. Combined with the design results of the optical system, TracePro software was used to model the optical system, and the simulation of the target imaging simulator at the magnitude of -1 to +6 Mv was analyzed and verified. The magnitude error is less than 0.2 Mv, and the irradiance uniformity of the exit pupil surface is greater than 90%, which meets the requirements of the target imaging simulator.

Keywords

Acknowledgement

The authors acknowledge financial support from the Science and Technology Development Plan of Jilin Province of China (20220201089GX).

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