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. 24, 2015
Filed:
Nov. 24, 2011
Takaharu Shimizu, Osaka, JP;
Kaori Yamamoto, Osaka, JP;
Takaharu Shimizu, Osaka, JP;
Kaori Yamamoto, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An object is to prevent or reduce uneven brightness in a direct-type lighting device. A lighting device according to the present technology includes LEDsarranged in a matrix on a bottom plate of the chassis and a reflectorincluding first and second side wallseach arranged between the LEDsadjacent in a Y-axis direction and an X-axis direction, respectively. The LEDsare configured to emit light toward an opening of the chassis. The first side wallhas a side surfacerising from a front surfaceof an LED boardtoward the opening of the chassis while being inclined. The first side wallextends straightly along the X-axis direction and has a triangular cross-sectional shape taken along the Y-axis direction. The second side wallhas a prism-like shape rising from the front surfacetoward the opening and has a rhombic outline in a plan view.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile