Design review of flexure focus stage for the Gemini telescope near-infrared imager
Design review of flexure focus stage for the Gemini telescope near-infrared imager
复制标题
双子座望远镜近红外成像仪柔性聚焦台设计综述
DOI：
10.1117/12.317229
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
K. Hodapp
中科院分区：
文献类型：
--
作者：
J. Douglass;Tony T. Young;K. Hodapp
审查是一个焦点阶段，旨在适应定位和稳定性要求的探测器阵列在双子座北望远镜的近红外成像仪（NIRI）。两个探测器阵列的聚焦轴平移是必需的，而围绕所有其他轴的亚微米偏转刚度对于NIRI的成功操作至关重要。结合低温真空环境的刚度要求导致了挠曲设计。迄今为止，原型载物台机构的测试表明，横向偏转< 1微米，定位重复性为1微米，以及令人满意的低温性能。
Reviewed is a focus stage designed to accommodate the positioning and stability requirements of the detector arrays in the Gemini North Telescope's Near IR imager (NIRI). Focus axis translation of the two detector arrays is required, while sub-micron deflection stiffness about all other axes is of paramount importance to the successful operation of NIRI. The stiffness requirement coupled with a cryogenic vacuum environment led to a flexure design. Testing of the prototype stage mechanism to date has shown transverse deflections of < 1 micrometers , positioning repeatability of 1 micrometers , and satisfactory cryogenic performance.