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Proceedings Paper

Stray light analysis of large aperture optical telescope using TracePro
Author(s): Cheng-ming Sun; Fei Zhao; Ze Zhang
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Paper Abstract

In order to verify the effect of stray light elimination design, the detailed stray light analysis of one modified large aperture optical telescope using TracePro is described in this paper. Firstly, the sources of stray light in optical telescope and the influence of stray light on optical telescope are introduced. Then, the principle of stray light analysis using TracePro is presented. The solid model, surface properties and light paths of the modified large aperture optical telescope are determined. Ray splitting and importance sampling are adopted to ensure the calculation accuracy and reduce the time consumption. The Point Source Normalized Irradiance Transmittance (PSNIT) curve of the system is plotted. It shows the PSNITs are less than 10-12 when off-axis angles are larger than 30°, which satisfies the requirement of the system. Finally, the several special fields of stray light control are discussed.

Paper Details

Date Published: 18 November 2014
PDF: 6 pages
Proc. SPIE 9298, International Symposium on Optoelectronic Technology and Application 2014: Imaging Spectroscopy; and Telescopes and Large Optics, 92981F (18 November 2014); doi: 10.1117/12.2072244
Show Author Affiliations
Cheng-ming Sun, Academy of Opto-Electronics (China)
Fei Zhao, Academy of Opto-Electronics (China)
Ze Zhang, Academy of Opto-Electronics (China)


Published in SPIE Proceedings Vol. 9298:
International Symposium on Optoelectronic Technology and Application 2014: Imaging Spectroscopy; and Telescopes and Large Optics
Jannick P. Rolland; Changxiang Yan; Dae Wook Kim; Wenli Ma; Ligong Zheng, Editor(s)

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