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Proceedings Paper

Design of an ultra-thin dual band infrared system
Author(s): Ke Du; Xuemin Cheng; Qichao Lv; YiFei Hu
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Paper Abstract

The ultra-thin imaging system using reflective multiple-fold structure has smaller volume and less weight while maintaining high resolution compared with conventional optical systems. The multi-folded approach can significantly extend focal distance within wide spectral range without incurring chromatic aberrations. In this paper, we present a dual infrared imaging system of four-folded reflection with two air-spaced concentric reflective surfaces. The dual brand IR system has 107mm effective focal length, 0.7NA, ±4° FOV, and 50mm effective aperture with 80mm outer diameter into a 25mm total thickness, which spectral response is 3~12μm.

Paper Details

Date Published: 5 November 2014
PDF: 6 pages
Proc. SPIE 9272, Optical Design and Testing VI, 92720U (5 November 2014); doi: 10.1117/12.2068798
Show Author Affiliations
Ke Du, Shanghai Institute of Spaceflight Control Technology (China)
China Aerospace Science and Technology (China)
Xuemin Cheng, Tsinghua Univ. (China)
Qichao Lv, Shanghai Institute of Spaceflight Control Technology (China)
China Aerospace Science and Technology (China)
YiFei Hu, Shanghai Institute of Spaceflight Control Technology (China)
China Aerospace Science and Technology (China)


Published in SPIE Proceedings Vol. 9272:
Optical Design and Testing VI
Yongtian Wang; Chunlei Du; José Sasián; Kimio Tatsuno, Editor(s)

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