Pulsed-array video inspection lighting system

Details Pulsed-array video inspection lighting system Pulsed-array video inspection lighting system

H - Electricity

04

N

350/32, 340/124.

H04N 7/18 (2006.01) G01N 21/86 (2006.01) G01N 21/88 (2006.01) G01N 21/90 (2006.01) H04N 7/00 (2006.01) G01N 21/84 (2006.01) G01N 21/954 (2006.01) G01N 21/956 (2006.01)

Patent

CA 1327637

PULSED-ARRAY VIDEO INSPECTION LIGHTING SYSTEM Abstract of the Disclosure An engineered lighting system for use in an inspection system is comprised of an array of light emitting diodes. A specimen is brought into the viewing area, and a current pulse is provided to the diodes of the array to selectively flash all or a portion of the diodes of the array. Reflected light from the specimen is sensed and a digitized image is generated therefrom. An illumination level of the digitized image is adjustable, in whole or in part, by varying the effective lighting intensity of one or more of the diodes of the array during a flash period. The digitized image of the specimen is compared to data indicative of acceptability of the specimen, and acceptance or rejection of the specimen is decided on a basis of a comparison therebetween.

608413

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