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Circular carrier-frequency photography for observing phase objectsA circular grating is photographed through a phase object which deforms the image of the grating lines. By superimposing these deformed lines with a master grating on photographic film, moire patterns are observed. These patterns are interpreted as fringes of constant radial derivative.
Document ID
19730011754
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Silva, D. E. (California Univ. La Jolla, CA, United States)
Hong, Y. M. (California Univ. La Jolla, CA, United States)
Date Acquired
September 2, 2013
Publication Date
January 1, 1972
Subject Category
Instrumentation And Photography
Report/Patent Number
NASA-CR-130198
Accession Number
73N20481
Funding Number(s)
CONTRACT_GRANT: NGL-05-009-079
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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