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. 06, 2013
Filed:
Mar. 30, 2012
Toshitaka Nakamura, Osaka, JP;
Hironaka Fujii, Carlsbad, CA (US);
Hiroaki Miyagawa, Oceanside, CA (US);
Rajesh Mukherjee, Irvine, CA (US);
Bin Zhang, San Diego, CA (US);
Amane Mochizuki, Carlsbad, CA (US);
Toshitaka Nakamura, Osaka, JP;
Hironaka Fujii, Carlsbad, CA (US);
Hiroaki Miyagawa, Oceanside, CA (US);
Rajesh Mukherjee, Irvine, CA (US);
Bin Zhang, San Diego, CA (US);
Amane Mochizuki, Carlsbad, CA (US);
Nitto Denko Corporation, Osaka, JP;
Abstract
A light emitting device comprising a light emitting component that emits light with a first peak wavelength, and at least one sintered ceramic plate over the light emitting component is described. The at least one sintered ceramic plate is capable of absorbing at least a portion of the light emitted from said light emitting component and emitting light of a second peak wavelength, and has a total light transmittance at the second peak wavelength of greater than about 40%. A method for improving the luminance intensity of a light emitting device comprising providing a light emitting component and positioning at least one translucent sintered ceramic plate described above over the light emitting component is also disclosed.