Off-axis three-mirror system based on freeform mirror

XUE Dong-lin; ZHENG Li-gong; ZHANG Feng

doi:10.3788/OPE.20111912.2813

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Off-axis three-mirror system based on freeform mirror

Article | 更新时间：2020-08-12

- Off-axis three-mirror system based on freeform mirror
- Optics and Precision Engineering Vol. 19, Issue 12, Pages: 2813-2820(2011)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所中国科学院光学系统先进制造技术重点实验室,吉林长春,130033
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111912.2813
  CLC： TH703
- Received：10 May 2011，
  
  Revised：30 June 2011，
  
  Published Online：25 December 2011，
  
  Published：25 December 2011
- 稿件说明：
移动端阅览
薛栋林, 郑立功, 张峰. 基于光学自由曲面的离轴三反光学系统[J]. 光学精密工程, 2011,19(12): 2813-2820

XUE Dong-lin, ZHENG Li-gong, ZHANG Feng. Off-axis three-mirror system based on freeform mirror[J]. Editorial Office of Optics and Precision Engineering, 2011,19(12): 2813-2820
薛栋林, 郑立功, 张峰. 基于光学自由曲面的离轴三反光学系统[J]. 光学精密工程, 2011,19(12): 2813-2820 DOI： 10.3788/OPE.20111912.2813.

XUE Dong-lin, ZHENG Li-gong, ZHANG Feng. Off-axis three-mirror system based on freeform mirror[J]. Editorial Office of Optics and Precision Engineering, 2011,19(12): 2813-2820 DOI： 10.3788/OPE.20111912.2813.

摘要

为了研制长焦距大视场离轴三反空间光学系统

描述了自由曲面光学数理模型

设计了基于自由曲面的离轴三反光学系统。针对焦距为4 500 mm

成像视场角为11

系统总长与焦距的比值为1/3的光学系统

对比分析了传统离轴三反光学系统和次镜为自由曲面的离轴三反光学系统的关键性能。在提出的光学系统中次镜采用自由曲面设计

提升了光学系统的像差平衡能力;最终选用相对孔径为1/9.5的设计方案

使光学系统全视场平均波像差优于0.030(=632.8 nm)

平均传递函数优于0.434(71.4 lp/mm)

接近衍射极限;在同等条件下系统设计传递函数比传统离轴三反系统提高5%以上。优化设计后光学系统自由曲面次镜与理论球面偏差为1.1

采用定制的标准球面镜结合基于数字样板的非零位检测方法可完成面形实时高精度检测

解决了大口径凸自由曲面检测的难题。结果表明

采用基于自由曲面次镜的空间光学系统

具有体积小、技术可实现性强、波像差和传递函数等关键性能优越等优点。

Abstract

A freeform off-axis three-mirror system based on a freeform mirror was designed for the long focal length and wide-field off-axis three-mirror system in a space telescope. To obtain a system with a focal length of 4 500 mm

field of view of 11 and the ratio of the total length of system and the focal length in 1/3

the design and performance between traditional off-axis three-mirror system and freeform off-axis three-mirror system were compared. In the designed optical system

the freeform mirror was introduced to the secondary mirror to enhance system optimization and improve the balance capacity for optical aberration. After the comparison and optimization

the relative aperture of 1/9.5 was chosen.In the system

the average of wavefront error of all field of view is better than 0.030(=632.8 nm)

and the average of the Modulation Transform Function(MTF) of all field of view is greater than 0.434(71.4 lp/mm) that is close to the diffraction limitation. Furthermore

the MTF has im- proved more than 5% compared to that of traditional TMA system and the departure of the secondary freeform mirror and theoretical spherical surface is only 1.1(=632.8 nm). The highly precision testing can be accomplished only by a standard sphere combined with the non-null testing method based on digital mask

which solves the problem of large-aperture convex freeform mirror testing and is helpful for the manufacturing of freeform secondary mirror. The off-axis three-mirror system based on freeform secondary mirror shows its advantages in smaller cubage

better realizability in engineering

better wavefront error and higher MTF.

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Keywords

references

韩昌元. 高分辨力空间相机的光学系统研究[J]. 光学精密工程,2008,16(11):2164-2172. HAN CH Y. Study on optical system of high resolution space camera [J]. Opt. Precision Eng., 2008,16(11):2164-2172. (in Chinese)[2] 邓健,张伟,龙夫年. 大口径拼接式合成孔径光学系统设计 [J]. 光学精密工程,2008,16(1):29-34. DENG J,ZHANG W,LONG F N. Optical design of large aperture segmented mirror system [J]. Opt. Precision Eng., 2008,16(1):29-34. (in Chinese)[3] 金光,张亮,胡福生. 大F数高分辨率空间望远镜光学系统 [J]. 光学精密工程,2007,15(2):155-159. JIN G,ZHANG L,HU F S.Investing on space optical system of high F number and high resolution [J]. Opt. Precision Eng., 2007,15(2):155-159. (in Chinese)[4] 梁士通,杨建峰,薛彬. 四反射镜光学系统像差分析与设计 [J]. 光学学报,2010,30(11):3300-3305. LIANG SH T,YANG J F,XUE B.Aberration analysis and design of four-mirror reflective optical system [J]. Acta Optica Sinica, 2010,30(11):3300-3305. (in Chinese)[5] 杨波,王涌天. 自由曲面反射器的计算机辅助设计[J]. 光学学报,2004,24(6): 721-724. YANG B, WANG Y T. Computer aided design of freeform reflector[J].Acta Optica Sinica,2004,24(6): 721-724.(in Chinese)[6] 程德文,王涌天,常军,等. 轻型大视场自由曲面棱镜头盔显示器的设计[J]. 红外与激光工程,2007,36(3): 309-311. CHENG D W, WANG Y T, CHANG J,et al.Design of a lightweight and wide field-of-view HMD system with free-form-surface prism[J].Infrared and Laser Engineering,2007,36(3):309-311.(in Chinese)[7] 薛栋林,张忠玉,郑立功,等. 大口径碳化硅材料凸非球面反射镜的检验[J]. 光学精密工程,2008,16(12):2491-2496. XUE D L,ZHANG ZH Y,ZHENG L G,et al..Testing methods for large aperture convex SiC asphere mirror [J]. Opt. Precision Eng., 2008,16(12):2491-2496. (in Chinese)[8] 闫锋. 应用波前编码技术的离轴三反系统研究. 北京:中国科学院研究生院,2009. YAN F. The research on off-axis TMA system appling wavefront coding technology .Beijing:Graduate University of the Chinese Academy of Sciences,2009.(in Chinese)[9] 张峰. 高精度离轴凸非球面反射镜的加工和检测[J]. 光学精密工程,2010,18 (12):2557-2563. ZHANG F.Fabrication and testing of precise off-axis convex asphere mirror [J]. Opt. Precision Eng., 2010,18(12):2557-2563. (in Chinese)

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