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. 03, 2013
Filed:
Jun. 22, 2011
Ikko Kuzuhara, Toyonaka, JP;
Kouji Nishioka, Kurayoshi, JP;
Ikko Kuzuhara, Toyonaka, JP;
Kouji Nishioka, Kurayoshi, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A light emitting device includes a light emitting element, a first phosphor which emits a light by being excited by a light emitted from the light emitting element and a second phosphor which emits a light by being excited by the light emitted from the light emitting element and/or the light emitted from the first phosphor. The light emitted from the light emitting element, the light emitted from the first phosphor and the light emitted from the second phosphor are mixed to make an inclination angle of a line, on a chromaticity diagram, connecting a chromaticity coordinate of the light emitted from the first phosphor and a chromaticity coordinate of the light emitted from the light emitting element equal to an inclination angle of an isotemperature line of light of a predetermined color temperature.