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Optical-precision alignment of diffraction grating mold in moire interferometryA high-precision optical method is presented for aligning diffraction grating molds with the edges of specimens in moire interferometry. The alignment fixture is simple and convenient to operate. The conventional method of grating-mold alignment has a wide band of uncertainty in the range of error which is not compatible with the required precision of high-sensitivity moire interferometry. Following a description of the alignment technique, both the single-edge and parallel-edge guide bar optical alignment methods are introduced and compared.
Document ID
19920058253
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Joh, D.
(Missouri-Rolla, University Rolla, United States)
Date Acquired
August 15, 2013
Publication Date
June 1, 1992
Publication Information
Publication: Experimental Techniques
Volume: 16
Issue: 3 Ma
ISSN: 0732-8818
Subject Category
Instrumentation And Photography
Accession Number
92A40877
Funding Number(s)
CONTRACT_GRANT: NCC2-678
Distribution Limits
Public
Copyright
Other

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