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:
Aug. 12, 2014
Filed:
Mar. 15, 2012
Dong Jung Suen, Guishan Township, Taoyuan County, TW;
Chih-hsun Sun, Kaohsiung, TW;
Wei-yu Yeh, Tainan, TW;
Hsueh-hung Fu, Hsinchu, TW;
Dong Jung Suen, Guishan Township, Taoyuan County, TW;
Chih-Hsun Sun, Kaohsiung, TW;
Wei-Yu Yeh, Tainan, TW;
Hsueh-Hung Fu, Hsinchu, TW;
TSMC Solid State Lighting Ltd., Hsinchu, TW;
Abstract
The present disclosure provides a lighting instrument. The lighting instrument includes a recessed light fixture, for example a troffer light or a batten light. The light fixture includes a plurality of light-emitting diode (LED) devices located on a board. The light fixture also includes a diffuser cap located on the board and housing the LED devices therein. The diffuser cap includes a plurality of coating regions. Each coating region is coated by a film containing white particles. The white particles can reflect and diffuse light emitted by the LED devices. The film in each coating region has a different white particle concentration level than other coating regions.