Glass mirrors for space telescopes

J. R.P. Angel

doi:10.1117/12.948155

Glass mirrors for space telescopes

J. R.P. Angel

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

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 30 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.

Original language	English (US)
Pages (from-to)	32-34
Number of pages	3
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	542
DOIs	https://doi.org/10.1117/12.948155
State	Published - Oct 22 1985

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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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 30 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.",

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AB - 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 30 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.

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JF - Proceedings of SPIE - The International Society for Optical Engineering

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Glass mirrors for space telescopes

Abstract

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