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Proceedings Paper

Stray light suppression of ocean camera
Author(s): Ke Li; Xiaolin Liu; Tuotuo Li; Bei Chu
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Paper Abstract

The optical-mechanical model of the off-axis optical system with oscillating mirror is established. The stray light path is analyzed on the basis of the simulation results. According to various types of stray light paths, the main path of stray light are determined and the influence of important surfaces and illumination surfaces on stray light of the camera are clarified. Effective restraint measures are proposed without blocking the imaging light. After re-simulation, the veiling glare indexes of the two imaging channels are greatly reduced. PST (Point Source Transmittance) is used as an index to test the validity of stray light suppression measures. When the off-axis angle is 30 degrees, the PST of the camera reaches 10-8, which meets the design requirements.

Paper Details

Date Published: 31 January 2020
PDF: 11 pages
Proc. SPIE 11427, Second Target Recognition and Artificial Intelligence Summit Forum, 114271K (31 January 2020); doi: 10.1117/12.2551604
Show Author Affiliations
Ke Li, Beijing Institute of Space Mechanics and Electricity (China)
Xiaolin Liu, Beijing Institute of Space Mechanics and Electricity (China)
Tuotuo Li, Beijing Institute of Space Mechanics and Electricity (China)
Bei Chu, Beijing Institute of Space Mechanics and Electricity (China)


Published in SPIE Proceedings Vol. 11427:
Second Target Recognition and Artificial Intelligence Summit Forum
Tianran Wang; Tianyou Chai; Huitao Fan; Qifeng Yu, Editor(s)

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