Surface inspection apparatus for objects

Details Surface inspection apparatus for objects Surface inspection apparatus for objects

1984-12-28

1991-01-15

Willis, Davis L.

Optics: measuring and testing

Inspection of flaws or impurities

Having predetermined light transmission regions

358106, G01N 2188

Patent

active

049848860

ABSTRACT:
A photo-electric conversion device is provided with an independent optical system having a lens making an image of the surface of an object to be inspected which is not flat as a flat spatial image at the front stage of the photo-electric conversion device. The photo-electric conversion device receiving the flat spatial image on its target screen produces a video signal. An inspection device for processing an output video signal is provided to judge whether the inspected surface is good or not.

REFERENCES:
patent: 3980405 (1976-09-01), Tatsuno et al.

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