Enhanced stray light suppression black treatments process for observational remote sensing telescopes

Chun-Han Chou; Tsung-Ping Lee; Po-Hsuan Huang

doi:10.1117/12.3049411

10 January 2025 Enhanced stray light suppression black treatments process for observational remote sensing telescopes

Chun-Han Chou, Tsung-Ping Lee, Po-Hsuan Huang

Author Affiliations +

Proceedings Volume 13267, Earth Observing Missions and Sensors: Development, Implementation, and Characterization VI; 1326713 (2025) https://doi.org/10.1117/12.3049411
Event: Asia-Pacific Remote Sensing, 2024, Kaohsiung, Taiwan

Conference Poster

Abstract

In this paper, we propose a black treatment method for optical-mechanical surfaces in observational remote sensing telescopes. This treatment effectively suppresses stray light, enhancing the dynamic range of the telescope's sensors. The black treatment process involves using a laser to create periodic holes followed by coating with a Blackening Matrix (BM). Measurement results show that the total integrated scatter (TIS) is less than 2.4% at incident angles from 8° to 70° and less than 4.2% at angles from 70° to 80°. These results demonstrate that the proposed method is more effective than traditional blackening techniques, making it a promising solution for future space applications where minimizing stray light is critical.

(2025) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chun-Han Chou, Tsung-Ping Lee, and Po-Hsuan Huang "Enhanced stray light suppression black treatments process for observational remote sensing telescopes", Proc. SPIE 13267, Earth Observing Missions and Sensors: Development, Implementation, and Characterization VI, 1326713 (10 January 2025); https://doi.org/10.1117/12.3049411

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