Optical system design for the aerial camera with dual band, common optical path, long focal, oblique view and focusing

Yulan He; Xiangguo Xiao; Yuan Li; Xinzheng Shao; Nanxi Wang; Hua Qiang; Feng Lu

doi:10.1117/12.2199775

8 October 2015 Optical system design for the aerial camera with dual band, common optical path, long focal, oblique view and focusing

Yulan He, Xiangguo Xiao, Yuan Li, Xinzheng Shao, Nanxi Wang, Hua Qiang, Feng Lu

Author Affiliations +

Proceedings Volume 9677, AOPC 2015: Optical Test, Measurement, and Equipment; 96771O (2015) https://doi.org/10.1117/12.2199775
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

A visible, MWIR, long focal, oblique view and focusing optical system of aerial camera is described, and in this paper we design an innovative optical system with common optical path and catadioptics configuration. The focal length of this optical system is 1.45m in the visible waveband (0.7~0.9μm,) and 0.61m in MWIR waveband (3.7~4.8μm), and the oblique view scanning range is within 20km~100km. To meet the requirements for the sharp imaging quality under the circumstances of high altitude environment and real time variable range, this aerial camera is focused by making back cutoff length longer to add a mirror, then MTF of optical system is all above 0.4 in Nyquest frequency.

Citation Download Citation

Yulan He, Xiangguo Xiao, Yuan Li, Xinzheng Shao, Nanxi Wang, Hua Qiang, and Feng Lu "Optical system design for the aerial camera with dual band, common optical path, long focal, oblique view and focusing", Proc. SPIE 9677, AOPC 2015: Optical Test, Measurement, and Equipment, 96771O (8 October 2015); https://doi.org/10.1117/12.2199775

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KEYWORDS

Visible radiation

Cameras

Modulation transfer functions

Mid-IR

Optical design

Sensors

Infrared imaging

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