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Proceedings Paper

Stray light in infrared detector
Author(s): Yan Zhang; Dafu Liu; Xiangrong He; Xiaokun Wang; Kefeng Zhang; Hengjing Tang; Tao Li
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Paper Abstract

Infrared optical system which has severe requirements on stray light levels often need cold shield around the detector. Some basic design principles and goals for baffles are presented. The location of vanes for cold shield are shown based on universal design criteria of baffle vane. Three different categories of vane designs for cold shield and their advantages for stray light control are discussed: one vane, two vanes and three vanes. The design of vane structure on cold shield surfaces is analyzed using the LIGHTTOOLS stray light software. The PST curves of cold shield without vane and with different vanes are given.

Paper Details

Date Published: 4 August 2009
PDF: 9 pages
Proc. SPIE 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, 73831O (4 August 2009); doi: 10.1117/12.835706
Show Author Affiliations
Yan Zhang, Shanghai Institute of Technical Physics (China)
Dafu Liu, Shanghai Institute of Technical Physics (China)
Xiangrong He, Shanghai Institute of Technical Physics (China)
Xiaokun Wang, Shanghai Institute of Technical Physics (China)
Kefeng Zhang, Shanghai Institute of Technical Physics (China)
Hengjing Tang, Shanghai Institute of Technical Physics (China)
Tao Li, Shanghai Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 7383:
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications
Jeffery Puschell; Hai-mei Gong; Yi Cai; Jin Lu; Jin-dong Fei, Editor(s)

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