Optical design of spherical zone projection lens for small and medium-sized flight simulator

LIU Xiaochan; CHEN Chen; SONG Tao; LI Weishan; ZHANG Xin; GAO Song; YANG Bo

doi:10.5768/JAO202344.0101005

Journal of Applied Optics > 2023 > 44(1): 30-36. > DOI: 10.5768/JAO202344.0101005

LIU Xiaochan, CHEN Chen, SONG Tao, LI Weishan, ZHANG Xin, GAO Song, YANG Bo. Optical design of spherical zone projection lens for small and medium-sized flight simulator[J]. Journal of Applied Optics, 2023, 44(1): 30-36. DOI: 10.5768/JAO202344.0101005

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Optical design of spherical zone projection lens for small and medium-sized flight simulator

Qinhuangdao Audio-Visual Machinery Research Institute Co.,Ltd., Qinhuangdao 066000, China

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Received Date: April 24, 2022
Revised Date: May 29, 2022
Available Online: September 15, 2022

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Abstract

Abstract

To meet the needs of further miniaturization and cost reduction for existing immersive flying simulator, a spherical zone projection lens for small and medium-sized flight simulator was designed. The key parameters of each component (spherical zone, projector, projection lens) in the projection scheme was determined. The designed lens has a field of 172° and inverted-telephoto ratio of 6:1, put a projector with the designed lens on the screen, and the whole screen would be fully projected. The construction method of optical system with large field of view and inverted-telephoto ratio was provided, the distortion, field curvature and relative illumination in large field nonsimilar imaging systems were analyzed and discussed, and the effective method of improving the illumination uniformity was also presented. The proposed lens meets the high-quality projection requirements of 4 k resolution with a low-cost structure of 8-piece lens, and its MTF values of all the fields are higher than 0.4 at the nyquist frequency of 185 lp/mm, which has good workability.
- flight simulator,
- optical design,
- inverted-telephoto ratio,
- large field of view,
- projection lens

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References (16)

References

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Optical design of spherical zone projection lens for small and medium-sized flight simulator