Method and apparatus for measuring the dimensions of three-dimen

Details Method and apparatus for measuring the dimensions of three-dimen Method and apparatus for measuring the dimensions of three-dimen

1996-08-12

1998-10-06

Pham, Hoa Q.

Optics: measuring and testing

By polarized light examination

With light attenuation

356379, 25055922, G01B 1124

Patent

active

058185941

ABSTRACT:
A method and apparatus for recording light reflecting and shadowed areas of a three-dimensional object which is conveyed relative to a detector wherein the object is alternately illuminated from a plurality of different directions utilizing flashes of light which are synchronized with respect to the scan frequency of the detector whereby the recorded information may be utilized to determine the dimensions of the object.

REFERENCES:
patent: 4063820 (1977-12-01), Borgese
patent: 4105925 (1978-08-01), Rossol et al.
patent: 4873651 (1989-10-01), Raviv
patent: 5013927 (1991-05-01), Tsikos et al.

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