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红外系统的光机热一体化设计
The Optical-Mechanical Integrated Design of Athermal Infrared Optics
【摘要】 在无热光学系统设计中 ,考虑机械结构的热性能对系统热稳定性的贡献 ,在满足系统总光焦度要求、消热差和消色差条件下 ,求解各光学组元的光焦度。在保持光焦度不变的条件下 ,进行像差平衡 ,可设计出实际的消热差光学系统。这种在光学设计中融合机械结构热稳定性因素的一体化设计方法 ,对红外无热光学系统设计具有重要意义。文中详细介绍了f′=45 .4mm ,D/f′=1 / 2 .5 ,2ω =1 0°的红外成像物镜和f′=1 60mm ,D/f′=1 / 8,2ω =2 .8°的可见/近红外波段干涉成像光谱仪前置镜的一体化无热设计的结果。
【Abstract】 The contribution of the thermal expansion of lens housing to thermal stability of an optical system must be considered in the design of an athermal optical system. Each component of an optical system can be determined by solving the equations based on the power of system, athermal and achromatic requirements. An athermal infrared system can be designed by a way of abberation correction upon condition of fixed power of the components. The athermal infrared imaging lens with f ′=45.4 mm, D/f ′=1/2.5, 2 ω =10°and the athermal objective of an imaging interferometer with f ′=160 mm, D/f ′=1/8,2 ω =2.8° are presented in detail. Both of lenses were designed using this optical mechanical thermal integrated design technique.
【Key words】 thermal dispersion of optics; athermalization of infrared systems; optical design; space optics;
- 【文献出处】 红外技术 ,INFRARED TECHNOLOGY , 编辑部邮箱 ,2000年02期
- 【分类号】TN214
- 【被引频次】25
- 【下载频次】460