中国空间科学技术

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CCD星敏感器光学系统设计

卢欣   

  1. 北京控制工程研究所
  • 发布日期:1994-08-25

OPTICAL DESIGN OF CCD STAR SENSOR

Lu Xin(Beijing Institute of Control Engineering, Beijing 100080)   

  • Published:1994-08-25

摘要： 介绍ＣＣＤ星敏感器用光学系统设计的参数选择，光学系统的设计光谱范围０．４８、０．８５μｍ；焦距为７５ｍｍ，Ｆ／１．４４，视场８．５°。该系统为复杂化的Ｐｅｔｚｖａｌ结构形式；以点列图能量集中度和能量重心偏评价光学系统的成像质量。所选用的ＣＣＤ芯片像元尺寸为２３μｍ×２３μｍ，像元数３８４×２８８，全视场内混色光点列图能量重心偏最大值１．６μｍ，对应于４．３９角秒。

关键词: 卫星遥感, 光学系统, 电荷耦合器

Abstract: his paper presents the selection of optical design goals for CCD star sensor. Wavelength range for the system is from 0.48μm to 0.85μm,focal length 75mm, F/1.44, field of view 8.5°.It's a complicated Petzval system. Evaluating image quality of the system with the method of spot diagram energy concentration and deviation of energy centre. Total number of elements of selected CCD is 384 × 288, pixel size 23μm × 23μm. Maximum energy centre deviation in FOV for polychrome spot diagram is 1.6μm,corresponding to 4. 39″.