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:
Mar. 04, 2008
Filed:
Sep. 29, 2004
Kevin Patrick Capaldo, Mount Vernon, IN (US);
Yu HU, Evansville, IN (US);
Chunghei Yeung, Evansville, IN (US);
Yan Zhang, Shanghai, CN;
Kevin Patrick Capaldo, Mount Vernon, IN (US);
Yu Hu, Evansville, IN (US);
Chunghei Yeung, Evansville, IN (US);
Yan Zhang, Shanghai, CN;
General Electric Company, Schenectady, NY (US);
Abstract
A method of inspecting a light-management film comprises reflecting light from an overhead light source off a first side of the light-management film and examining the light-management film for defects; directing transmission light from a backlight source through a second side of the light-management film to the first side and examining the light-management film for defects; reflecting light from the overhead light source off the second side of the light-management film and examining the light-management film for defects; directing transmission light from the backlight source through the first side of the light-management film to the second side and examining the light-management film for defects; and measuring a location of each of the examined defects in the light-management film.