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Proceedings Paper

Narcissus analysis of cooled IR optical system with multi-magnification in wide field of view
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Paper Abstract

The designed Infra-red optical system with multi-magnification shows non-uniform thermal distribution only in Wide FOV and suspected to be narcissus effect. To analyze the system’s artifacts more effectively, the optical system design was imported to analysis codes. Initial ray tracing was performed with a point source from the detector to identify main candidates of Narcissus effect by analyzing irradiance distribution and flux distribution. As a second step, a planer source was created at the detector and traced again. As a result, four major candidates were selected and the major contributor was identified among them. To confirm the result with experiment, replacement optical component was manufactured. We can confirm that the Narcissus effect was improved significantly by replacing the identified component.

Paper Details

Date Published: 24 October 2012
PDF: 9 pages
Proc. SPIE 8541, Electro-Optical and Infrared Systems: Technology and Applications IX, 85411G (24 October 2012); doi: 10.1117/12.974549
Show Author Affiliations
Jinsuk Hong, Samsung Thales Co., Ltd. (Korea, Republic of)
Youngsoo Kim, Samsung Thales Co., Ltd. (Korea, Republic of)

Published in SPIE Proceedings Vol. 8541:
Electro-Optical and Infrared Systems: Technology and Applications IX
David A. Huckridge; Reinhard R. Ebert, Editor(s)

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