| 双视场红外变焦镜头的无热化研究 |
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| 引用本文： | 邓键,童卫红,安晓强,王茜.双视场红外变焦镜头的无热化研究[J].应用光学,2011,32(1). |
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| 作者姓名： | 邓键 童卫红 安晓强 王茜 |
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| 作者单位： | 西南技术物理研究所,四川,成都,610041 |
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| 摘 要： | 研究了双视场红外变焦系统的光学被动消热差技术,通过理论分析温度变化对变焦光学系统性能的影响,推导出被动消热差公式.将热离焦和热色差作为两种附加的初级像差引入像差平衡关系式,可通过常规光学系统消像差的 4 种途径:分配光焦度、有效匹配光学材料、改变透镜形状和引入非球面实现全被动补偿.在此基础上建立了一个通用模型,该系统有 6 片透镜、一个非球面,在-45℃～+55℃温度范围内的2个视场均具有较好的像质、冷反射和较宽松的公差特性.在该模型中适当引入衍射元件,可减少镜片,提高光学性能.
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| 关 键 词： | 红外变焦光学系统 光学补偿 无热化 光学设计 |
Athermalization of infrared zoom system |
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| DENG Jian,TONG Wei-hong,AN Xiao-qiang,WANG Qian.Athermalization of infrared zoom system[J].Journal of Applied Optics,2011,32(1). |
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| Authors: | DENG Jian TONG Wei-hong AN Xiao-qiang WANG Qian |
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| Institution: | DENG Jian,TONG Wei-hong,AN Xiao-qiang,WANG Qian(Southernwest Institute of Technical Physics,Cheng Du 610041,China) |
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| Abstract: | Passive athermalization technology of infrared zoom optical system is studied.Athermalization relationship was deduced and the condition expression for zoom system athermalization was obtained.Defocusing and chromatic aberration caused by thermal change can be taken as two kinds of primary aberrations,and can be eliminated with a passive athermalization system.There are four ways to implement athermalization in conventional systems,appropriate focal power arrangement,proper match of optical material,change ... |
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| Keywords: | infrared zoom optical system optical compensate athermalization optical design |
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