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Liquid-Crystal Point-Diffraction InterferometerLiquid-crystal point-diffraction interferometer (LCPDI) invented to combine flexible control of liquid-crystal phase-shifts with robustness of point-diffraction interferometers. Produces interferograms indicative of shapes of wavefronts of laser beams having passed through or reflected from objects of interest. Interferograms combined in computers to produce phase maps describing wavefronts.
Document ID
19960024429
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Mercer, Carolyn R.
(NASA Lewis Research Center, Cleveland, OH.)
Date Acquired
August 17, 2013
Publication Date
June 1, 1996
Publication Information
Publication: NASA Tech Briefs
Volume: 20
Issue: 6
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
LEW-15810
Accession Number
96B10285
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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