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:
Dec. 09, 2014
Filed:
Feb. 06, 2007
Shinichi Nagahama, Tokushima, JP;
Atsutomo Hama, Anan, JP;
Takafumi Sugiyama, Kamatsushima, JP;
Tomohisa Kishimoto, Anan, JP;
Shinichi Nagahama, Tokushima, JP;
Atsutomo Hama, Anan, JP;
Takafumi Sugiyama, Kamatsushima, JP;
Tomohisa Kishimoto, Anan, JP;
Nichia Corporation, Anan-shi, JP;
Abstract
A light emitting device, comprises: a light source that emits excitation light; a light guide that propagates the excitation light, and in which the refractive index of the center part (core) of a cross section is higher than the refractive index of the peripheral part (cladding); a wavelength conversion member that absorbs the excitation light propagated by the light guide and converts the wavelength thereof, and releases light of a predetermined wavelength band; and a shielding member that blocks the wavelength of at least part of the excitation light and the light emitted from the wavelength conversion member.