The Hubble Space Telescope uses a primary mirror having an area of 5 sq m. The mirrors needed for two possible future telescopes, 50 sq m and 500 sq m in area, are considered. The former would be an 8-m diameter monolithic mirror of 'zero-expansion' glass, and would be diffraction-limited at optical wavelengths (0.015 arcsecond images). The 500 sq m mirror, the area proposed for the Large Deployable Reflector, would be diffraction-limited down to 30-micron 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 ultralightweight glass panels.
Glass mirrors for space telescopes
1985-01-01
Aufsatz (Konferenz)
Keine Angabe
Englisch
Membrane Mirrors in Space Telescopes
AIAA | 2006
|Development of CFRP Mirrors for Space Telescopes Using Replica Technique
British Library Conference Proceedings | 2012
|