The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2001
Filed:
Feb. 18, 1999
Other;
Abstract
The invention relates to a method for automatic inspection of the surface,of a moving object, in which a region on the object's surface is illuminated from at least two different illumination directions,. The object's illuminated surface region is imaged with a camera to provide image information for analysis. The light sources in the different illumination directions,are pulsed to illuminate the object's surface region at different times, the pulsing frequency being >1 kHz The object's illuminated surface region is imaged as lines with a line scan camera,in sync with the above pulsing. The invention also relates to an arrangement for inspecting the surface,of a moving object, the arrangement comprising at least two light sources,in at least two different illumination directions,for illuminating the surface region of the object under inspection; a camera for imaging the object's surface region; and an image analyzer for analyzing the image information acquired from the object's surface,by imaging. The light sources,illuminate the object's surface,from the different illumination directions,at different times, and the camera is a line scan camera,. The arrangement further comprises a timing controller,for synchronous pulsing of the light sources,and the at least one line scan camera,, the pulsing frequency of the light sources,being >1 kHz.