Lens design of star sensor with large relative aperture and wide spectral range

Xiangyue, 孟祥月 Meng; Yang, 王洋 Wang; Lei, 张雷 Zhang; Yuegang, 付跃刚 Fu; Zhiyuan, 顾志远 Gu

doi:10.3788/irla201948.0718005

Cited by 3 publications

(1 citation statement)

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“…Due to the long distance of the star, the wavelength of the light emitted is generally concentrated between 400 and 600 nm. Normally, the spectral range of the star sensitizer should cover the band of stellar light to ensure that the star sensitizer can effectively detect the light signal of the star, so the spectral range of the optical system of the star sensitizer is selected in the band of 450~850 nm [18]. Specifically for the single star simulator optical system designed in this paper, it is determined that its operating band is 450~850 nm, and the center wavelength is 632.8 nm.…”

Section: Analysis Of System Indexes and Determination Of Main Parametersmentioning

confidence: 99%

Design of Parabolic Off-Axis Reflector Optical System for Large Aperture Single Star Simulators

Gao,

Sun,

Zhang

et al. 2024

Applied Sciences

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This study proposes a parabolic off-axis reflective optical system design method to reduce the wave aberration of the optical system of a large aperture single star simulator and improve the optical system’s imaging quality. Firstly, we determined the design indexes of the optical system of the large aperture single star simulator by analyzing the technical indexes of the star sensitizer and the development status of the single star simulator; secondly, the initial structural parameters of the optical system were calculated based on the theory of primary aberration; then, we carried out the design optimization of the optical system, the image quality evaluation, and the tolerance analysis using Zemax software; finally, the study tested the wave aberration of the optical system by using the four-dimensional interferometer and the standard mirror together. The simulation results of the optical system are as follows: in the entire field of view, the aberration of the optical system is far less than 0.002%, the modulation transfer function (MTF) reaches the diffraction limit, and the maximum wave aberration is 0.0324 λ. The experimental results are as follows: the maximum wave aberration of the optical system is 0.0337 λ, which is less than 1/25 λ, and it meets the requirements of the index. The simulation and experimental results show that the optical system of the large aperture single star simulator designed by this method has good imaging quality and a simple system structure.

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Section: Analysis Of System Indexes and Determination Of Main Parametersmentioning

confidence: 99%