Optical design of MWIR detection system for near-space infrared detecting

Pei-pei Yan; Kai Liu; Gang Li; Qiusha Shan; Jing Duan; Kai Jiang

doi:10.1117/12.2197895

15 October 2015 Optical design of MWIR detection system for near-space infrared detecting

Pei-pei Yan, Kai Liu, Gang Li, Qiusha Shan, Jing Duan, Kai Jiang

Proceedings Volume 9676, AOPC 2015: Optical Design and Manufacturing Technologies; 96760D (2015) https://doi.org/10.1117/12.2197895
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

Near-space platform has a high signal contrast and a long detection time. In order to realize effective detection of low altitude penetration target, a middle wave infrared (MWIR) optical system used in near space detection with high optical performance is given. First, the optical system scheme was described. Then on the basis of instrument and system consideration, the optical design parameters were distributed reasonably. The system had an effective focal length of 600 mm, an F-Number of F/4, a field of view of 2ω=1.16°, spatial resolution of 18 lp/mm and a working wavelength range of 3～5μm. The system structure is simple. And the requirements of the spot, energy concentration, distortion are all satisfied. Because the change of environment temperature will deeply influence image quality of MWIR optical system, the temperature characteristic of the system is analyzed. Moreover, first -order ghost and narcissus effect of the system are all analyzed in CODEV software. The analysis results show that temperature, first-order ghost and narcissus effect requests are all satisfied.

Citation Download Citation

Pei-pei Yan, Kai Liu, Gang Li, Qiusha Shan, Jing Duan, and Kai Jiang "Optical design of MWIR detection system for near-space infrared detecting", Proc. SPIE 9676, AOPC 2015: Optical Design and Manufacturing Technologies, 96760D (15 October 2015); https://doi.org/10.1117/12.2197895

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