Optics and optical instruments. Optical coatings

1995 ◽  
Keyword(s):  
Optical Coatings ◽  
Optical Instruments

scholarly journals Recent progress in the field of optical coatings for Fabry-Perot interferometers and filters

1995 ◽  
Vol 149 ◽  
pp. 69-71
Author(s):  
E. Pelletier
Keyword(s):  
Recent Progress ◽  
Optical Coatings ◽  
Spectral Filters ◽  
Optical Instruments ◽  
Multiple Factors ◽  
Short Overview ◽  
Fabry Perot

AbstractDuring the last years, considerable improvements occurred in the field of multidielectric spectral filters. Nowadays we can conceive and realize practically any filtering system meeting extremely precise requirements necessary for optical instruments and particularly for astronomy. We will give here a short overview of the multiple factors leading to these improvements.

Formulation of the New Chinese National Standard: Optics and Optical Instruments-Optical Ｃoatings

2011 ◽  
Vol 28 (9) ◽  
pp. 33-37
Author(s):  
高鹏 GAO Peng ◽  
阴晓俊 YIN Xiao-jun ◽  
胡雯雯 HU Wen-wen ◽  
赵帅锋 ZHAO Shuai-feng ◽  
王瑞生 WANG Rui-sheng ◽  
...  
Keyword(s):  
National Standard ◽  
Optical Coatings ◽  
Optical Instruments

The Role of VLBI in the Establishment of Coordinate Systems

1975 ◽  
Vol 26 ◽  
pp. 293-295 ◽  
Author(s):  
I. Zhongolovitch
Keyword(s):  
General Solution ◽  
Future Development ◽  
Rational Approach ◽  
Radio Telescopes ◽  
Coordinate Systems ◽  
Tectonic Plates ◽  
Astronomical Observations ◽  
Optical Instruments ◽  
Fundamental Polyhedron

Considering the future development and general solution of the problem under consideration and also the high precision attainable by astronomical observations, the following procedure may be the most rational approach:1. On the main tectonic plates of the Earth’s crust, powerful movable radio telescopes should be mounted at the same points where standard optical instruments are installed. There should be two stations separated by a distance of about 6 to 8000 kilometers on each plate. Thus, we obtain a fundamental polyhedron embracing the whole Earth with about 10 to 12 apexes, and with its sides represented by VLBI.

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