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. 20, 2013
Filed:
Aug. 04, 2011
Kazunori Annen, Osaka, JP;
Makoto Izumi, Osaka, JP;
Kimiko Mieda, Osaka, JP;
Kenichi Yoshimura, Osaka, JP;
Hiroshi Fukunaga, Osaka, JP;
Kazunori Annen, Osaka, JP;
Makoto Izumi, Osaka, JP;
Kimiko Mieda, Osaka, JP;
Kenichi Yoshimura, Osaka, JP;
Hiroshi Fukunaga, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka-shi, JP;
Abstract
A light emitting apparatus includes a light emitting device emitting primary light and a wavelength conversion unit absorbing a part of the primary light to emit secondary light. The wavelength conversion unit includes a first wavelength conversion unit containing at least a nanocrystalline phosphor and a second wavelength conversion unit containing a rare-earth-activated phosphor or a transition-metal-element-activated phosphor. In the light emitting device, the first wavelength conversion unit and the second wavelength conversion unit are closely stacked in order.