System and method for optical inspection of recessed surfaces

Details System and method for optical inspection of recessed surfaces System and method for optical inspection of recessed surfaces

1997-06-16

1999-07-13

Kim, Robert H.

Optics: measuring and testing

Inspection of flaws or impurities

Transparent or translucent material

3562395, 3562401, G01N 2100

Patent

active

059234199

ABSTRACT:
An optical inspection system wherein a camera (14) images recessed surfaces of a workpiece through a lens (16). Video signals to the image are provided to a computer (30) that compares selected parameters of the image with predetermined values. Based on that comparison, computer (30) selectively signals a controller (20) to activate a rejector assembly (24). Lens (16) is a microlens of the wide angle type to provide an open image of the recessed surface to camera (14). An illumination system (54) directs diffused light through a gap (52) between the lens (16) and the workpiece (10) to illuminate the workpiece.

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Document Entitled: Cosmicar CCTV Lenses, date not available.
Document Entitled: 2/3" Fixed, date not available.

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