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Adjusting Curvatures Of Large Mirrors And LensesActuators apply stresses to generate distortions counteracting undesired distortions in technique for adjusting curvature of large focusing mirror or lens. Motor-and-gear assemblies under remote control vary squeeze of ring clamp and push or pull of hollow shaft to make fine adjustments in curvature of mirror. Applicable to large astronomical-telescope mirrors with diameters of 60 cm or more.
Document ID
19920000520
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Birnbaum, Morris M. (Caltech)
Date Acquired
August 15, 2013
Publication Date
September 1, 1992
Publication Information
Publication: NASA Tech Briefs
Volume: 16
Issue: 9
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
NPO-18345
Accession Number
92B10520
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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