Device for automatic surface inspection of an unwinding strip

Details Device for automatic surface inspection of an unwinding strip Device for automatic surface inspection of an unwinding strip

2006-02-07

2006-02-07

Stafira, Michael P. (Department: 2877)

Optics: measuring and testing

Inspection of flaws or impurities

Surface condition

C356S430000

Reexamination Certificate

active

06995838

ABSTRACT:
The invention concerns a device for automatic surface inspection of an unwinding strip to detect surface defects, comprising at least a camera (10) whereof the optical axis is directed towards the surface to be inspected and forming on said surface a transverse line of sight (L) and at least an illuminating system (15) whereof the incident rays (Ri) are directed towards the transverse tranline of sight and distributed over the entire length of said line. At each point of the transverse line of sight, the observation direction of the camera (10) forms with the specular reflected ray at said point a constant angle.

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patent: WO00/55605 (2000-09-01), None
patent: WO 00 66999 (2000-11-01), None
Patent Abstracts of Japan, vol. 013, No. 353 (P-913), Aug. 8, 1989 & JP 01 113639 (Furukawa Electric Co., LTD.), Dec. 26, 1987.
Patent Abstracts of Japan, vol. 012, No. 194 (P-713), Jun. 7, 1988 & JP 62 299749 (Furukawa Electric Co., Ltd.), Dec. 26, 1987.
Patent Abstracts of Japan, vol. 2000, No. 04, Aug. 31, 2000 & JP 2000 028341 (Nissan Motor Co., Ltd.), Jan. 28, 2000.

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