Design review of a flexure focus stage for the Gemini Telescope Near Infrared Imager

被引：9

作者：

Douglass, JW ^{[1
]}

Young, TT ^{[1
]}

Hodapp, KW ^{[1
]}

机构：

[1] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA

来源：

INFRARED ASTRONOMICAL INSTRUMENTATION, PTS 1-2 | 1998年 / 3354卷

关键词：

translation stage; rectilinear; flexure; compound flexure; stiffness;

D O I：

10.1117/12.317229

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Reviewed is a focus stage designed to accomodate the positioning and stability requirements of the detector arrays in the Gemini North Telescope's Near Infrared 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 NIRl. The stiffness requirement coupled with a cryogenic vacuum environment led to a flexure based design. Testing of the prototype stage mechanism to date has shown transverse deflections of < 1 mu m, positioning repeatability of 1 mu m, and satisfactory cryogenic performance.

引用

页码：1062 / 1067

页数：6