Stray light in infrared detector

Yan Zhang; Dafu Liu; Xiangrong He; Xiaokun Wang; Kefeng Zhang; Hengjing Tang; Tao Li

doi:10.1117/12.835706

4 August 2009 Stray light in infrared detector

Yan Zhang, Dafu Liu, Xiangrong He, Xiaokun Wang, Kefeng Zhang, Hengjing Tang, Tao Li

Proceedings Volume 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications; 73831O (2009) https://doi.org/10.1117/12.835706
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

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.

Citation Download Citation

Yan Zhang, Dafu Liu, Xiangrong He, Xiaokun Wang, Kefeng Zhang, Hengjing Tang, and Tao Li "Stray light in infrared detector", Proc. SPIE 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, 73831O (4 August 2009); https://doi.org/10.1117/12.835706

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