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Proceedings Paper

Glass Mirrors For Space Telescopes
Author(s): J.R.P. Angel
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Paper Abstract

The Hubble Space Telescope uses a primary mirror of area 5 m2. We consider the mirrors needed for two possible future telescopes, of 50 m2 and 500 m2 in area. The former would be an 8m diameter monolithic mirror of "zero" expansion glass, and would be diffraction limited at optical wavelengths (0.015 arcseconds images). The 500 m2 mirror, the area proposed for the Large Deployable Reflector, would be diffraction limited down to 30μ wavelength (0.3 arcsecond images). Both types of mirror could be of honeycomb sandwich construction made by a new air inflation method. The larger reflector would consist of ultra lightweight glass panels.

Paper Details

Date Published: 22 October 1985
PDF: 3 pages
Proc. SPIE 0542, Optical Fabrication & Testing Workshop, (22 October 1985); doi: 10.1117/12.948155
Show Author Affiliations
J.R.P. Angel, University of Arizona (United States)


Published in SPIE Proceedings Vol. 0542:
Optical Fabrication & Testing Workshop
Robin S. McDowell, Editor(s)

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