Holographically corrected telescope with temporal update

Geoff P. Andersen; Randall J. Knize

doi:10.1117/12.393997

28 July 2000 Holographically corrected telescope with temporal update

Geoff P. Andersen, Randall J. Knize

Proceedings Volume 4013, UV, Optical, and IR Space Telescopes and Instruments; (2000) https://doi.org/10.1117/12.393997
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

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.

Citation Download Citation

Geoff P. Andersen and Randall J. Knize "Holographically corrected telescope with temporal update", Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000); https://doi.org/10.1117/12.393997

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