Positioning accuracy of primary mirror actuators for large-aperture space-based optical instruments

2000 ◽  
Author(s):  
Alson E. Hatheway
Keyword(s):  
Positioning Accuracy ◽  
Primary Mirror ◽  
Optical Instruments ◽  
Large Aperture

Central Hub Radial Support of Primary Mirror in Large Aperture Telescope

2011 ◽  
Vol 48 (3) ◽  
pp. 032202
Author(s):  
杨飞 Yang Fei ◽  
张景旭 Zhang Jingxu
Keyword(s):  
Primary Mirror ◽  
Large Aperture

Review on Splicing Structure Technology of Large Aperture Space Primary Mirror

2018 ◽  
Vol 55 (3) ◽  
pp. 030002
Author(s):  
李旭鹏 Li Xupeng ◽  
石进峰 Shi Jinfeng ◽  
王炜 Wang Wei ◽  
王永杰 Wang Yongjie ◽  
樊学武 Fan Xuewu
Keyword(s):  
Primary Mirror ◽  
Large Aperture

Radial Eccentricity Error Detection of Primary Mirror of Large Aperture Telescopes

2017 ◽  
Vol 54 (9) ◽  
pp. 091103
Author(s):  
李敏 Li Min ◽  
张昂 Zhang Ang ◽  
张俊波 Zhang Junbo ◽  
鲜浩 Xian Hao
Keyword(s):  
Error Detection ◽  
Primary Mirror ◽  
Large Aperture ◽  
Eccentricity Error

Design of supporting structure for primary mirror of large aperture theodolite

2013 ◽  
Vol 21 (12) ◽  
pp. 3111-3117 ◽  
Author(s):  
伞晓刚 SAN Xiao-gang ◽  
孙宁 SUN Ning ◽  
卓仁善 ZHUO Ren-shan ◽  
乔彦峰 QIAO Yan-feng
Keyword(s):  
Primary Mirror ◽  
Supporting Structure ◽  
Large Aperture

Removal Method of Core Shaft of Primary Mirror

2013 ◽  
Vol 552 ◽  
pp. 221-226
Author(s):  
Qi Rui Xu ◽  
Fan Wu
Keyword(s):  
Mechanical Analysis ◽  
Primary Mirror ◽  
Supporting Structure ◽  
Removal Method ◽  
The Core ◽  
Large Aperture

The structure of core shaft combined with mercury belt is widely used as the primary mirror supporting structure of 1 meter class and 2 meter class large aperture telescope currently. In order to reduce the structure jitter of primary mirror, the fitting clearance between core shaft and shaft sleeve is very small, so clamping stagnation occurs during installation and disassembling process of core shaft. The removal method of clamping stagnation of core shaft is introduced. Mechanical analysis of core shaft and primary mirror is applied to make sure that the primary mirror is safe. Some tools are designed specially, and the process and the attention points to remove core shaft are introduced. In this way, the clamping stagnation of core shaft can be removed easily. The core shaft of 1 m class primary mirror was removed by the method and the primary mirror was excellent without damage.

Optical Design of Very Large Four-Mirror Systems

2007 ◽  
Vol 364-366 ◽  
pp. 1231-1236 ◽  
Author(s):  
Li Rong Zhu ◽  
Wei Min Shen
Keyword(s):  
Focal Length ◽  
Optical Design ◽  
Diffraction Limit ◽  
Field Of View ◽  
Initial Structure ◽  
Entrance Pupil ◽  
Primary Mirror ◽  
Imaging Quality ◽  
Large Aperture ◽  
Design Idea

Four-mirror systems with a very large aperture and a long focal length were investigated and designed. Their design idea is given. Through the derivation of primary aberration formula, the aberration properties were analyzed and discussed, and the method to determine its initial structure is reported. As examples, two four-mirror systems with spherical and parabolic primary mirror, 100m focal length, and 10m entrance pupil were optimally designed. Their imaging quality approaches diffraction limit within field of view of 0.4 and 0.5 degrees respectively.

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