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:
Sep. 03, 2013
Filed:
Mar. 25, 2009
Hiroshi Fukshima, Kadoma, JP;
Kazuyuki Yamae, Ikoma, JP;
Masaharu Yasuda, Takarazuka, JP;
Tomoya Iwahashi, Ibaraki, JP;
Akihiko Murai, Yao, JP;
Hiroshi Fukshima, Kadoma, JP;
Kazuyuki Yamae, Ikoma, JP;
Masaharu Yasuda, Takarazuka, JP;
Tomoya Iwahashi, Ibaraki, JP;
Akihiko Murai, Yao, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A semiconductor light emitting element, including: an n-type semiconductor layer having optical transparency with an emission wavelength of a light emitting layer, the light emitting layer and a p-type semiconductor layer, which are laminated; and a reflection film which is disposed on a side opposite to a surface from which light emitted from the light emitting layer is extracted, wherein the reflection film comprises: a transparent layer having optical transparency with the emission wavelength of the light emitting layer, and a metal layer, which is laminated on the transparent layer on a side opposite to the light emitting layer and is constituted by a metal material having a high reflectance, the transparent layer has a refractive index lower than a refractive index of a layer disposed on a side of the light emitting layer when viewed from the transparent layer, with the emission wavelength, and a thickness of the transparent layer is equal to or more than a value obtained by dividing a value of ¾ of the emission wavelength by the refractive index of the transparent layer.