Magazine Article

Large Telescope Segmented Primary Mirror Alignment

TBMG-7971

05/01/2010

Abstract
Content

A document discusses a broadband (white light) point source, located at the telescope Cassegrain focus, which generates a cone of light limited by the hole in the secondary mirror (SM). It propagates to the aspheric null-mirror, which is optimized to make all the reflected rays to be normal to the primary mirror (PM) upon reflection. PM retro-reflects the rays back through the system for wavefront analysis. The point source and the wavefront analysis subsystems are all located behind the PM. The PM phasing is absolute (white light) and does not involve the SM.

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Citation
"Large Telescope Segmented Primary Mirror Alignment," Mobility Engineering, May 1, 2010.
Additional Details
Publisher
Published
May 1, 2010
Product Code
TBMG-7971
Content Type
Magazine Article
Language
English