Opto-mechanical Structure Design, Alignment and Test of Prime Focus Optical System

Fuguo, 王富国 Wang; Zhi, 王志 Wang; Ming, 明名 Ming; Hong-zhuang, 李宏壮 Li; Tian-yu, 吕天宇 Lu

doi:10.3788/gzxb20124101.0021

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“…In order to realize the detection of farther and weaker targets, the aperture of an optical system becomes larger. Simultaneously, in order to realize the observation of a larger space, the field of view of the optical system becomes wider [6], as is shown in Figure 1.…”

Section: Optical Systemmentioning

confidence: 99%

“…In order to realize the detection of ther and weaker targets, the aperture of an optical system becomes larger. Simultaneou in order to realize the observation of a larger space, the field of view of the optical sys becomes wider [6], as is shown in Figure 1. Photoelectric imaging telescopes are used for space target detection and monito and can be divided into the tracking type and searching type.…”

Section: Optical Systemmentioning

confidence: 99%

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Optical and Mechanical Performance and Feasibility Analysis of Meter-Level Corrector Lenses for Survey Telescope

Xue

Liu

2023

Photonics

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A prime-focus optical system is a common type of large aperture survey telescope with a small obscuration ratio, high transmittance, and simple structure. As the detection capabilities and search efficiency of the telescope are improved, the aperture of the primary mirror becomes larger. The primary mirror aperture of a high-performance survey telescope has a four-meter scale, and the aperture of the corrector lenses of a corresponding prime-focus optical system can reach a one-meter scale. In this study, optical surface shape changes due to gravity were studied via an integrated optomechanical analysis. The Zernike polynomial was used to characterize the changed optical surface. The influence of optical surface variations on the wavefront and imaging quality of the optical system was analyzed by calculating the optical path differences. From the perspective of optical aberration, the optical properties of meter-level corrector lenses were quantitatively analyzed. The effect of the meter-level corrector lenses on imaging was explained in principle, and the feasibility of this optical scheme was verified.

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Section: Optical Systemmentioning

confidence: 99%

Section: Optical Systemmentioning

confidence: 99%