Stray light removing design and simulation of spaceborne camera

ZHONG Xing; JIA Ji-qiang

doi:null

您当前的位置：

首页 >

文章列表页 >

Stray light removing design and simulation of spaceborne camera

Article | 更新时间：2020-08-12

- Stray light removing design and simulation of spaceborne camera
- Optics and Precision Engineering Vol. 17, Issue 3, Pages: 621-625(2009)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
  2. 中国科学院研究生院北京,100039
- 作者简介：
- 基金信息：
- DOI：
  CLC： V475.2;V241.03
- Received：05 September 2008，
  
  Revised：27 October 2008，
  
  Published Online：25 March 2009，
  
  Published：25 March 2009
- 稿件说明：
移动端阅览
钟兴, 贾继强. 空间相机消杂光设计及仿真[J]. 光学精密工程, 2009,17(3): 621-625

ZHONG Xing, JIA Ji-qiang. Stray light removing design and simulation of spaceborne camera[J]. Editorial Office of Optics and Precision Engineering, 2009,17(3): 621-625
钟兴, 贾继强. 空间相机消杂光设计及仿真[J]. 光学精密工程, 2009,17(3): 621-625 DOI：

ZHONG Xing, JIA Ji-qiang. Stray light removing design and simulation of spaceborne camera[J]. Editorial Office of Optics and Precision Engineering, 2009,17(3): 621-625 DOI：

摘要

针对空间相机中的杂光会引起像质模糊和对比度下降问题

设计了空间相机消杂光机构。研究的空间相机基于同轴三反系统

消杂光机构主要由内外镜筒、视场光阑、里奥光阑和挡光板组成。在内外镜筒的设计中参考了卡塞格林系统的设计方法并利用CAD建模进行辅助设计。为了对消杂光效果进行评价

采用了基于计算机随机光线Monte-Carlo仿真方法。介绍了对表面的散射特性进行描述的双向散射模型、关键面的选取和模型的建立。利用计算机分析得到了空间相机的杂光系数和点源透射比的曲线

子午方向+10入射的杂光在像面造成的杂光系数在0.35％以下

0~20的非成像视场点源透射比为10

-6

量级

该结果可作为进一步优化设计消杂光系统的参考依据。

Abstract

A stray light removing mechanism is designed for improving image contrast and image deblurring in a spaceborne camera. The spaceborne camera researched in this paper is based on on-axis Three Mirror Anastigmatics(TMA)

and the stray light removing mechanism consists of inner and outer baffles

field stop

Lyot stop and blocking board. Cassegrain system is taken as a reference in the CAD modeling for design of inner and outer baffles and the random light Moente-Carlo simulation method is adopted to evaluate the effect of stray light removing. Moreover

the Bidirectional Scattering Distribution Function(BSDF) for describing the scatter character of surfaces

choice of key surfaces and the establishment of model are introduced and the stray light ratio and Point Source Transmittance(PST) curves are acquired by computer analysis.Results show that the stay light ratio is below 0.35% when stay light incidents at +10 meridional direction and the PST is at the level of 10

-6

in 0~20. These results can offer a good reference for the further optimization design.

关键词

Keywords

references

史光辉. 消除卡塞格林系统杂散光的措施[J]. 光学精密工程,1997,5(5):10-16. SHI G H. Methods preventing stray light emergenced in cassegrain systems [J]. Opt. Precision.Eng.,1997,5(5):10-16. (in Chinese)[2] 钟兴. 反射光学系统杂散光的消除[J]. 红外与激光工程,2008,37(2):316-318. ZHONG X. Stray light removing of reflective optical system. [J]. Infrared and Laser Engineering, 2008,37(2):316-318. (in Chinese)[3] ANDREW T Y. Design of cassegrain light shields[J]. App. Opt.,1967,6(6):1063-1067.[4] SONG N. Baffles design for an axial two-mirror telescope [J]. Opt. Eng., 2002,41(9):2353-2356.[5] ROBERT P B. Current technology of stray light .SPIE, 1986,675:2-12.[6] 黄强. 空间光学系统的杂散光分析[J]. 红外,2006,27(1):26-33. HUANG Q. Analysis of stray light in space optical system[J]. Infrared. 2006,27(1):26-33. (in Chinese)[7] B UMER S. SLIOS- a contribution to standard procedures in stray light measurements . SPIE,1999,3739:414-421. [8] SCHLICK C. A Survey of shading and reflectance models .Computer Graphics Forum, 1994,13(2):121-131.[9] HARVEY J E,KOTHA A. Scattering effects from residual optical fabrication errors . SPIE, 1995,2576:155-174.[10] Lambda Research Corporation.EO-1 stray light analysis report No. 3 . Lambda Research Corporation,1998.

Views

670

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Multi-state reliability modeling method for Tianwen-1 high-resolution camera

Occlusion image data generation system

Inverse dynamics modeling of 3-RPS/3n-SPS parallel mechanism with redundant limbs

Simulation tool for complex-engineered micro-optical electromechanical system

Modeling and simulation for target detection in polarization scene

Related Author

Yan WANG

Tianyu SUN

Quanquan LUO

Yang LI

Xiaobo LI

Ruo-heng MEI

Hui-min MA

Yu-ming ZHAO

Related Institution

Space Department III， Changchun Institution of Optics，Fine Mechanics and Physics， Chinese Academy of Sciences

School of Computer & Communication Engineering， University of Science and Technology Beijing

School of Mechanical Engineering, Yan Shan University

Heavy-duty Intelligent Manufacturing Equipment Innovation Center of Hebei Province

Heilongjiang Agricultural Economy Vocational College

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176855 Email：gxjmgc@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰