Probing liquid mirror surface quality using the charge coupled device triangulation technique

被引:0
|
作者
Finet, Francois [1 ]
Surdej, Jean [2 ]
机构
[1] Aryabhatta Res Inst Observat Sci, ARIES, Naini Tal 263002, Uttarakhand, India
[2] Univ Liege, Inst Astrophys & Geophys Extragalact Astrophys &, B-4000 Liege, Belgium
关键词
liquid mirror; optical quality test; instrumentation;
D O I
10.1117/1.OE.53.3.034103
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In the framework of the 4-m International Liquid Mirror Telescope project, we have developed an innovative technique to assess the optical quality of liquid mirrors, whose optical quality may be affected by the propagation of wavelets over the mercury layer. We present a method based upon the reflection of a laser beam over the surface and present the mathematical modeling as well as preliminary results obtained from laboratory measurements. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
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页数:9
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