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. 28, 2012
Filed:
Aug. 26, 2008
Chun-wei Wang, Miao-Li Hsien, TW;
Hung-kuang Hsu, Miao-Li Hsien, TW;
Chun-Wei Wang, Miao-Li Hsien, TW;
Hung-Kuang Hsu, Miao-Li Hsien, TW;
Foxsemicon Integrated Technology, Inc., Chu-Nan, Miao-Li Hsien, TW;
Abstract
An LED device includes a substrate, a plurality of LEDs, a first light pervious layer, a reflective plate, and a plurality of phosphor particles contained in the first light pervious layer. The LEDs are electrically mounted on the substrate and configured for emitting light of a first wavelength. The reflective plate is mounted on the substrate for directing the light of the first wavelength to transmit through the first light pervious layer. The phosphor particles are configured for converting the light of the first wavelength into light of a second wavelength. A distribution of the phosphor particles in the first light pervious layer gradually decreases from a center to a periphery thereof.