Interferometer employing reference images

Details Interferometer employing reference images Interferometer employing reference images

1991-05-20

1993-09-07

Harvey, Jack B.

Boots, shoes, and leggings

356374, G01B 1114

Patent

active

052435423

ABSTRACT:
An interferometer for measuring the degree of deformation of an object, wherein alignment detection is facilitated by producing a moire pattern. An image signal data for reference fringes is compounded with interference fringe data that has been used for alignment detection. In generating a moire pattern, the interference fringe image signal data is process using the reference fringe data as a filter, resulting in improvement in visibility of the moire pattern.

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