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:
Oct. 28, 2014
Filed:
Oct. 21, 2010
Yasumori Kuromizu, Osaka, JP;
Yasumori Kuromizu, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An object of the present invention is to configure a lighting device to discriminate the front and back sides of a substrate at low costs. In the lighting device of the present invention, a diffuser plateas an optical memberincludes: a light-transmissive substrate; an optical patternformed on the substrateand applying an optical action to light; and a discrimination patternconfigured to discriminate between a first position (normal position) of the substrateand a second position (non-normal position) of the substratereversed from the first position, formed on a first planethat is a surface of the substrateon which the optical patternis formed, and made of the same material as that of the optical pattern
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile