电光与控制, 2009, 16 (5): 63, 网络出版: 2010-04-01
非制冷焦平面红外热像仪光机热分析
Optical-Structure-Thermal Analsis for UIRFPA Thermal Imaging System
红外热像仪 光机热分析 光学设计 非制冷红外热成像 infrared thermal imaging system optical-structure-thermal analysis optical design uncooled thermal infrared imaging
摘要
非制冷红外热像仪在**和民用领域具有广阔的应用前景。在空间或**应用中,环境温度变化对系统成像质量影响很大。红外光学系统对温度变化非常敏感,温度的变化引起镜片间距的改变等,使系统产生离焦等热像差,从而使系统成像质量下降。利用光学设计软件Zemax的多重结构功能分析了红外光学系统在-20～60℃ 温度范围内的光学传递函数变化情况,结果表明系统的传递函数下降很小,满足设计指标的要求。
Abstract
Uncooled Infraed Focal Plate Array(UIFPA) thermal imaging system plays an important role in military and civil application,and the environmental temperature has great influence on imaging quality. The infrared optical system is very sensitive to change of temperature,and may suffer image performance degradation due to defocusing because the space between lenses is changed with temperature. The variation of Optical Transfer Function(OTF) of the infrared optical system at the temperature from -20℃ to 60℃ is analyzed by using Zemax optical software. The result showed that the decrease of OTF is very small,which satisfies the design quota requirements.
刘小波, 杨洪波, 孙强. 非制冷焦平面红外热像仪光机热分析[J]. 电光与控制, 2009, 16(5): 63. LIU Xiaobo, YANG Hongbo, SUN Qiang. Optical-Structure-Thermal Analsis for UIRFPA Thermal Imaging System[J]. Electronics Optics & Control, 2009, 16(5): 63.
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