GEMINI 8.2 meter primary mirror no. 1 polishing

被引:2
|
作者
Cayrel, M [1 ]
Beraud, P [1 ]
Paseri, J [1 ]
Dromas, E [1 ]
机构
[1] REOSC, F-91280 St Pierre Du Perray, France
关键词
aspherics; active optics; large optics; ULE;
D O I
10.1117/12.319256
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The 8-m class primary mirrors of the GEMINI Telescopes are thin ULE menisci actively supported. The two mirror blanks are produced by CORNING, the optical figuring, manufacturing and assembling of interfaces are done by REOSC. REOSC is as well in charge of the transportation of the mirror blanks from CORNING to REOSC, and of the shipment of the finished optics to Hawaii and to Chile. The mirror assembly requirements are summarised, the manufacturing and testing methods are addressed. REOSC had to design and manufacture a dedicated active supporting system, representative of the one used at the telescope level. Its design and performance are presented. The manufacturing steps undertaken at REOSC and the results achieved are then detailed : mirror blank surface generating and grinding, polishing, testing. The current status of the mirrors is finally presented.
引用
收藏
页码:205 / 215
页数:11
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