Analysis of Passive Athermalization Structure Design and Integrated Opto-Mechanical-Thermal of Zoom Lens of Photoelectric Countermeasure Platform

Weifeng, 杜伟峰 Du; Yongzhi, 刘永志 Liu; Wenjie, 高文杰 Gao; Xiongchao, 胡雄超 Hu

doi:10.3788/lop57.131204

Cited by 2 publications

(1 citation statement)

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“…To address the degradation of imaging quality caused by jitter errors in optical telescope systems, an optical model and finite element system structure were established to unify their coordinate systems (McBride et al, 2016;Du et al, 2020). The frequency response function and root mean square were obtained using modal and power spectral density, and the effect of jitter was converted into a modulation transfer function through optical-mechanical integration.…”

Section: Modeling Analysismentioning

confidence: 99%

Jitter error evaluation in large-aperture optical telescopes based on normalized point source sensitivity

Yuan-Guo,

Fei,

Jia-Kang

et al. 2023

Front. Astron. Space Sci.

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To comprehensively analyze the jitter error in large-aperture optical telescopes, this paper introduces normalized point source sensitivity (PSSn) to evaluate the telescope system. First, the concept and basic properties of PSSn were introduced, and then the jitter error under expected random loads and the contribution percentage of each mode to the total jitter were analyzed through a model. The PSSn of the system under the influence of different error sources was studied, and its variation trend was estimated. A comparison of evaluation methods, such as the Strehl ratio, and the proposed method reflects the characteristics of more accurate data and a more concise calculation. The jitter error evaluation method proposed in this article, combined with PSSn, provides practical and beneficial guidance for the design and detection of large-aperture optical telescope systems.

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Section: Modeling Analysismentioning

confidence: 99%