Optics: measuring and testing – By polarized light examination – With light attenuation
Patent
1987-05-06
1988-11-29
Evans, F. L.
Optics: measuring and testing
By polarized light examination
With light attenuation
350 67, 356 1, G01C 300, G01B 1124
Patent
active
047877480
ABSTRACT:
A triangular, synchronous optical scanning apparatus to be used in a three-dimensional imaging is disclosed. A pair of curved stationary reflecting mirrors can be provided in optical beam paths to modify the reference plane to conform to the target surface.
REFERENCES:
patent: 3881801 (1975-05-01), Bechtold
patent: 4627734 (1986-12-01), Rioux
Canadian Patents and Development Limited
Evans F. L.
Toyooka Yoshiharu
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