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. 03, 2019
Filed:
Dec. 14, 2016
Screen Holdings Co., Ltd., Kyoto, JP;
Hiroyuki Onishi, Kyoto, JP;
SCREEN HOLDINGS CO., LTD., Kyoto, JP;
Abstract
A plurality of images is acquired while changing the direction of light emission. Each captured image is compared with a corresponding reference image to acquire first dark regions from the captured image. Second light regions are acquired from the captured image. In a combination of one of a plurality of first dark region images indicating first dark regions and one of a plurality of second light region images indicating second light regions, a region of overlap between a first dark region and a second light region is acquired as a defect candidate region, and the existence of a defect is detected on the basis of the defect candidate region.