| 无热化大相对孔径星敏感器光学系统设计 |
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| 引用本文： | 汤天瑾.无热化大相对孔径星敏感器光学系统设计[J].航天返回与遥感,2011,32(3):36-42. |
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| 作者姓名： | 汤天瑾 |
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| 作者单位： | 北京空间机电研究所,北京,100080 |
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| 摘 要： | 提出了一种大相时孔径轻小型光学系统的设计方案,给出了设计方案及热分析结果.光学系统工作谱段500～800nm,视场角9°,相对孔径1／1.2,光学系统设计结果良好,弥散斑直径在两个像元尺寸之内,能够满足光学系统对能量集中度和弥散斑的要求.基于光学热补偿理论对光学系统进行了无热化分析和消热设计.通过分析不同温度下的传递函...
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| 关 键 词： | 星敏感器 大相对孔径 光学设计 消热设计 |
Optical System Design of Light Star Tracker with Low F-number |
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| Tang Tianjin.Optical System Design of Light Star Tracker with Low F-number[J].Spacecraft Recovery & Remote Sensing,2011,32(3):36-42. |
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| Authors: | Tang Tianjin |
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| Institution: | Tang Tianjin (Beijing Institute of Space Mechanics ＆ Electricity,Beijing 100080,China) |
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| Abstract: | The Paper presents an optical system design of light CCD star sensor with low F-number,and atermalization is also done based on the compensation theory of thermal dispersion,giving the design and thermo-optical analysis results.The lens system is composed of seven lens which has an F-number of F/1.2,a field of view of 9 degrees,and a working wavelength range of 500～800nm.The geometric spot dispersed in two pixels at its focal surface,which can satisfied the requirement of the encircled energy and spot dispersion.The encircled energy and modulation transfer function of the lens at different temperatures are given as examples,It shows that the athermal optical system can work steadily within the temperature range of -10℃～40℃. |
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| Keywords: | Star sensor Low F-number Optical design Atermalization |
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