光学学报, 2010, 30 (4): 1140, 网络出版: 2010-04-20   

环形孔径长焦距光学系统

Long Focal-Length Optical System Using Annular Aperture
作者单位
苏州大学 现代光学技术研究所,江苏 苏州 215006
摘要
介绍一种可望用于空间相机的环型孔径长焦距光学成像系统,也是稀疏孔径的一种。光线通过最外面的环形孔径进入光学系统,经过一系列的同轴环形反射镜多次折转,最后通过补偿镜成像在光学系统的像面上。此类系统具有较大的遮拦比,可以在有效减少空间望远系统的厚度和体积的同时保持较好的成像质量,可望用于微小卫星高分辨率光学有效载荷。给出了光线经过6次反射的一种长焦距光学系统设计结果,并对其进行了像质评价和公差分析。
Abstract
A special kind of long focal-length optical system using annular aperture which is expected to be used in space cameras optical imaging system is introduced,it can also considered as a kind of sparse aperture system. Light enters the optical system through an outer annular aperture and is focused by a series of concentric annular reflectors and compensation lens to the image plane. They have large obscuration ratio. They have compactness and good image quality,which is expected to be used in micro satellite payload with high resolution. The result of a long focal length optics with six-fold reflection is introduced. Their performance evaluation and tolerance analysis are given and compared.
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张蕊蕊, 沈为民. 环形孔径长焦距光学系统[J]. 光学学报, 2010, 30(4): 1140. Zhang Ruirui, Shen Weimin. Long Focal-Length Optical System Using Annular Aperture[J]. Acta Optica Sinica, 2010, 30(4): 1140.

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