Apparatus and process for detecting the presence of defects on a

Details Apparatus and process for detecting the presence of defects on a Apparatus and process for detecting the presence of defects on a

1991-12-19

1993-06-15

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356430, G01N 2188

Patent

active

052201783

ABSTRACT:
A defect detection system for the optical inspection of defects in transparent and translucent sheets of materials. The system utilizes the differing optical properties of different defects to distinguish between such defects as fisheye defects, speck defects and scratches.

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Krueger; Applying Fiber Optics to Photoelectric Switches; Control Engineering; Aug. 1980; pp. 61-62.
"Automatic online monitoring hikes film-resin quality control"; Plastics Compounding; May/Jun. 1991; pp. 84 and 86.

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