Nov. 2010

Article Contents

Chinese Optics> 2010> 3(5): 494-499.

CHEN Ya, SONG Shu-mei, XUAN Bin, XIE Jing-jiang. Manufacturing technologies of lightweighted mirror applied to vacuum cryogenic environment[J]. Chinese Optics, 2010, 3(5): 494-499.

Citation:

CHEN Ya, SONG Shu-mei, XUAN Bin, XIE Jing-jiang. Manufacturing technologies of lightweighted mirror applied to vacuum cryogenic environment[J].Chinese Optics, 2010, 3(5): 494-499.

CHEN Ya, SONG Shu-mei, XUAN Bin, XIE Jing-jiang. Manufacturing technologies of lightweighted mirror applied to vacuum cryogenic environment[J]. Chinese Optics, 2010, 3(5): 494-499.

Citation:

CHEN Ya, SONG Shu-mei, XUAN Bin, XIE Jing-jiang. Manufacturing technologies of lightweighted mirror applied to vacuum cryogenic environment[J].Chinese Optics, 2010, 3(5): 494-499.

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Manufacturing technologies of lightweighted mirror applied to vacuum cryogenic environment

Key Laboratory of Optical System Advanced Manufacturing Technology,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033 China

Received Date:11 May 2010
Rev Recd Date:19 Jul 2010
Publish Date:25 Oct 2010

Abstract

Abstract

The design and manufacture of an elliptic mirror used in remote sensing was described in detail. How to choose the materials of a lightweighted mirror was discussed and the applications of the mirror to vacuum cryogenic environments were introduced. Based on the analyses of effects of different shapes of lightweighting holes, the structure of mirror was designed. By supporting the mirror with a belt hanging system, the gravity effect and the ultra low temperature effect were analyzed with a finite-element software. Furthermore, the practical lightweighting manufacture was carried out in the routing function of a computerized numerical control machining system, and the lightweighting ratio of elliptic mirror obtained has exceeded 33%. In order to eliminate the residual stress and microcracks introduced in the process, the mirror was disposed by a chemistry etching, and processed by a zone polishing machine on local. Results show that the surface error after polishing reaches 0.022(rms, =633 nm). The experiment of temperature variation was done in a small range and the change of surface error is 0.03 nm.
- lightweighted mirror,
- ultra-low temperature,
- lightweighting,
- computerized numerical control

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References (1)

References

[1] ZHANG Y M,ZHANG J H,HAN J C, et al.. Large-scale fabrication of lightweight Si/SiC ceramic composite optical mirror[J]. Mater. Lett.,2004,58:1204-1208. [2] 杨力.先进光学制造技术[M]. 北京:科学出版社,2001. YANG L. Advanced optical manufacture technology[M]. Beijing:Science Press,2001.(in Chinese) [3] LEE Y J,JOO H J. Ablation characteristics of carbon fiber reinforced carbon(CFRC)composites in the presence of silicon carbide(SIC)coating[J]. Surface and Coatings Technol.,2004,(180-181):286-289. [4] 刘宏伟,张芹,丁亚林,等. 基于有限元分析的长条状主镜支撑结构设计[J]. 光学精密工程 ,2003,11(6):556-558. LIU H W,ZHANG Q,DING Y L, et al. Design of strip primary mirror supporting structure based on finite element analysis[J]. Opt. Precision Eng.,2003,11(6):556-558.(in Chinese) [5] 吴清彬,陈时锦,董申. 参数优化方法在轻质反射镜结构设计中的应用[J]. 光学精密工程 ,2003,11(5):467-470. WU Q B,CHEN SH J,DONG SH. Optimization of parameters structural design of lightweight reflector[J]. Opt. Precision Eng.,2003,11(5):467-470.(in Chinese) [6] 闰勇,金光,杨洪波. 空间反射镜结构轻量化设计[J]. 红外与工程 ,2008,2(1):98-100. RUN Y,JING G,YANG H B. Lightweight structural design of space mirror[J]. Infrared and Laser Eng.,2008,2(1):98-100.(in Chinese) [7] MORIAN H F,MAUCH R. Zerodur for lightweight secondary/teriarymirrors[J]. SPIE,1998(3352):140-150. [8] 宋淑梅,陈亚,王延风,等. 计算机控制的轻质大型反射镜坯钻铣加工技术[J]. 光学技术 ,2001,27(6):549-555. SONG SH M,CHEN Y,WANG Y F, et al. Manufacturing of large lightweightted mirror substrate by CNC machining[J]. Opt. Technol.,2001,27(6):549-555.(in Chinese) [9] HAN S,NOVAK E,SCHURIG M. Application of Ritchey-Common test in large flat measurements[J]. SPIE,2001,4399:131-136.

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