Volume 5 Issue 2
Apr.  2012
Turn off MathJax
Article Contents
CHEN Wei, DING Ya-lin, HUI Shou-wen, XU Yong-sen. Design of kinematic mount for SiC scanning reflective mirror[J]. Chinese Optics, 2012, 5(2): 161-166. doi: 10.3788/CO.20120502.0161
Citation: CHEN Wei, DING Ya-lin, HUI Shou-wen, XU Yong-sen. Design of kinematic mount for SiC scanning reflective mirror[J]. Chinese Optics, 2012, 5(2): 161-166. doi: 10.3788/CO.20120502.0161

Design of kinematic mount for SiC scanning reflective mirror

doi: 10.3788/CO.20120502.0161
  • Received Date: 21 Dec 2011
  • Rev Recd Date: 23 Feb 2012
  • Publish Date: 10 Apr 2012
  • The SiC scanning reflective mirror with a dimension of 460 mm290 mm used in a spaceborne optical remote sensor is studied. The composite form of triangle and quadrangle and the combination of open and closed back are explored for the design of lightweight scanning mirror. A new kinematic mount and a flexible structure in axis is taken to hold the mirror around the lateral surface. The flexible structure in axis is used as an interface to the kinematic mount to support the mirror, which can eliminate the impact of thermal stress induced by the mismatch of thermal expansion coefficient among the materials on the mirror surfaces. Optical performance of the mirror is analyzed by using Finite Element Method(FEM). Results indicate that the surface figure errors are 4.5 nm and 20.3 nm under a gravity load of 1 g and the temperature load change of 8 ℃ in different directions. The results show that the lightweight designing and supporting structure of this scanning reflective mirror meet the requirements of optical imaging, and can improve the stability of structure effectively. It can be an important reference for the design of big size scanning reflective mirror components.

     

  • loading
  • [1] ROBICHAUD J,AKERSTROM A,FREY S. Reaction bonded silicon carbide gimbaled pointing mirror[J]. SPIE,2007,6666:66660O. [2] 闫勇,王栋,金光. 大口径SiC反射镜组件研制技术[J]. 光电工程,2010,37(6):108-112. YAN Y,WANG D,JIN G. Design and fabrication technology of large aperture sic mirror assembly[J]. Opto-Electronic Eng.,2010,37(6):108-112.(in Chinese) [3] SUYAMA S,ITOH Y. NTSIC (New-Technology Silicon Carbide):evaluation of microstructure of high-strength reaction-sintered silicon carbide for optical mirror[J]. SPIE,2007,6666:66660K. [4] COHAN L E,MILLER D W. Integrated modeling for design of lightweight, active mirrors[J]. Optical Eng.,2011,50(6):063003. [5] KANEDA H,NAKAGAWA T,ONAKA T. Development of lightweight SiC mirrors for the space infrared telescope for cosmology and astrophysics(SPICA) mission[J]. SPIE,2007,6666:666607. [6] 耿麒先,杨洪波,李延伟. 大口径平背形主镜背部支撑位置优化计算方法[J]. 光学技术,2007,33(6):889-895. GENG Q X,YANG H B,LI Y W. Optimum method of backside support position for large-aperture primary mirror with flat rear surface[J]. Opt. Technique,2007,33(6):889-895.(in Chinese) [7] COHAN L E,MILLER D W. Vibroacoustic launch analysis and alleviation of lightweight, active mirrors[J]. Opt. Eng.,2011,50(1):013002. [8] MASLOV V. Development of a technology for joining glassceramics parts with zero thermal expansion[J]. Opt. Eng.,2008,47(2):023401. [9] 陈永聪,胡永明,李英才. 背部支撑主反射镜的面形分析与支撑点优化[J]. 光子学报,2007,36(9):1730-1733. CHEN Y C,HU Y M,LI Y C. Displacement analyzing and support position optimizing of the main mirror with backside support[J]. Acta Photonica Sinica,2007,36(9):1730-1733.(in Chinese) [10] 王栋,杨洪波,陈长征. 光学表面面形的计算机仿真[J]. 计算机仿真,2007,24(2):298-301. WANG D,YANG H B,CHEN CH ZH. Computer simulation of the optical surface[J]. Computer Simulation,2007,24(2):298-301.(in Chinese)
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Article views(3412) PDF downloads(1036) Cited by()
    Proportional views

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return