Diffractosight improvements

Details Diffractosight improvements Diffractosight improvements

1987-04-02

1989-09-05

McGraw, Vincent P.

Optics: measuring and testing

Inspection of flaws or impurities

Having predetermined light transmission regions

356445, 358106, G01N 2188, G01N 2189, G01N 2190

Patent

active

048632686

ABSTRACT:
Disclosed are improvements in the surface inspection method and apparatus invention of our copending application "Panel Surface Flaw Inspection", Ser. No. 579,971, U.S. Pat. No. 4,629,319, which has now come to be described as "DiffractoSight". Particularly disclosed are semi and full automatic techniques for quantifying and locating localized surface distortions. Applications for determination of scratches, paint finish defects and other surface problems are also described.
The primary area of application is to cosmetic defects on automobile bodies, appliances, and furniture, and the dies, molds and models and other surfaces used in their manufacture.

REFERENCES:
patent: 3734626 (1973-05-01), Roberts et al.
patent: 3892494 (1975-07-01), Baker et al.
patent: 4207467 (1980-06-01), Doyle
patent: 4629319 (1986-12-01), Clarke et al.

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