28 July 2000 Holographically corrected telescope with temporal update
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Abstract
Next generation optical space telescopes with apertures > 10 m for imaging, lidar, communications and directed energy focusing will be unable to use conventional technologies which are impractical or too costly. Our resolution is to construct a telescope from a lightweight, membrane primary, which is holographically corrected for surface distortions, in situ. In order to design a practical space telescope, a scheme by which temporal variations in the mirror surface, caused by thermal and gravitational stresses must be found. We present evidence that a primary static hologram combined with a secondary adaptive optics system may be the least expensive and simplest approach.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Geoff P. Andersen, Randall J. Knize, "Holographically corrected telescope with temporal update", Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000); doi: 10.1117/12.393997; https://doi.org/10.1117/12.393997
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KEYWORDS
Space telescopes

Holography

Telescopes

Holograms

Mirrors

Monochromatic aberrations

Diffraction

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