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:
Jul. 20, 2010
Filed:
Mar. 28, 2007
Applicant:
Barry Raymond Hill, St Helens, GB;
Inventor:
Barry Raymond Hill, St Helens, GB;
Assignee:
Pilkington Group Limited, St. Helens, Merseyside, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of inspecting a glazing for faults involves illuminating the glazing with light having a first wavelength to produce a bright-field image, and illuminating the glazing with light having a second wavelength to produce a dark-field image. The bright-field image and dark-field image are captured using a single image capture device. The bright-field and dark-field images may be focussed onto the image capture device by a common lens. In addition, a shadowgraph image may be recorded simultaneously. The inspection method provides an improved fault detection system for glazings, such as automotive glazings.