激光与光电子学进展, 2012, 49 (1): 012204, 网络出版: 2011-12-08
一种高分辨率短波红外宽温度范围被动消热差光学系统
A High Resolution Shortwave Infrared Passive Athermalization System with Wide Temperature Range
光学设计 高分辨率 短波红外 被动消热差 衍射光学 optical design high resolution shortwave infrared passive athermalization diffractive optics
摘要
介绍了一种大视场短波红外光学系统消热差设计。系统工作波段为0.9～1.7μm，分辨率为640 pixel×512 pixel，光学系统总长55 mm。设计结果表明，在空间频率为20 lp/mm处，系统工作温度在-40 ℃～60 ℃环境下，各个温度下的系统调制传递函数(MTF)值均大于0.6。系统具有高像质、工作温度范围宽、结构紧凑、重量轻等优点。
Abstract
A design of athermalized shortwave infrared optical system with wide field of view is introduced. The working wavelength is 0.9～1.7 μm, the resolution is 640 pixel×512 pixel, and total optical length is 55mm. The results show that the modulation transfer function (MTF) is above 0.6 at the spatial frequency of 20 lp/mm in the temperature range of -40 ℃～60 ℃. The system has the advantages of high image quality, wide temperature range, compact structure and low mass.
杨小儒, 张良, 王希军, 刘玉. 一种高分辨率短波红外宽温度范围被动消热差光学系统[J]. 激光与光电子学进展, 2012, 49(1): 012204. Yang Xiaoru, Zhang Liang, Wang Xijun, Liu Yu. A High Resolution Shortwave Infrared Passive Athermalization System with Wide Temperature Range[J]. Laser & Optoelectronics Progress, 2012, 49(1): 012204.
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