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长春光学精密机械与物... [1]
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会议论文 [1]
发表日期
2009 [1]
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Design of the infrared dual-band athermalized optical system based on HDE (EI CONFERENCE)
会议论文
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, June 17, 2009 - June 19, 2009, Beijing, China
Dong K.
;
Zhang L.
;
Wang J.
;
Wang H.
;
Sun Q.
;
Lu Z.
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提交时间:2013/03/25
A dual-band infrared optical system adopting an uncooled LW infrared detector and a cooled MW infrared detector is designed and manufactured
while in the LW IR band the F/# is 1 and the focal length is 114 mm
based on the athermal ability and special diffractive properties of harmonic diffractive elements. The design shows in the MW IR band the F/# is 2 and the focal length is 72 mm
for the temperature range -40 70 the MTF value is over 0.5 at 10 lp/mm. Finite element method is applied to the opto-mechanic structure of the system for thermal analysis
for the temperature range -40C 70C the MTF value is over 0.4 at 20 lp/mm
which confirms the imaging ability of the system in a wide temperature range. 2009 SPIE.
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