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MOIRÉ FRINGE MULTIPLICATION WITH A SPATIALLY FILTERING PROJECTION SYSTEM
Author(s) -
BOONE P.,
BEECK W.
Publication year - 1970
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.1970.tb01638.x
Subject(s) - moiré pattern , optics , grating , lens (geology) , interference (communication) , multiplication (music) , fourier transform , plane (geometry) , spatial frequency , image plane , projection (relational algebra) , materials science , physics , image (mathematics) , computer science , mathematics , acoustics , computer vision , geometry , algorithm , channel (broadcasting) , quantum mechanics , computer network
The paper describes a method of multiplying the basic frequency of a deformed grating by filtering in the Fourier plane of a lens. The moiré pattern is formed in the image plane of this lens by mechanical interference of a frequency‐multiplied enlarged image of the specimen grating with a reference grating. A theoretical description of the system is given and some experimental results are presented.