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:
Apr. 23, 2013
Filed:
Dec. 10, 2008
Shuki Yamamoto, Osaka, JP;
Yasumori Kuromizu, Osaka, JP;
Kaori Yamamoto, Osaka, JP;
Takahiro Yoshikawa, Osaka, JP;
Shuki Yamamoto, Osaka, JP;
Yasumori Kuromizu, Osaka, JP;
Kaori Yamamoto, Osaka, JP;
Takahiro Yoshikawa, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A lighting deviceof the present invention includes a plurality of light sourcesand an optical member arranged closer to the light-exiting portionthan the light sources. The optical memberincludes a prism diffuser platefor diffusing light emitted from the light sourcesand exiting from a lens sheetarranged closer to the light-exiting portionthan the prism diffuser plate. The prism diffuser platehas prisms on a surface located on a side closer to the light-exiting portion. The lens sheethas convex lenseson a surface closer to the light-exiting portion
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile