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:
Mar. 11, 2014
Filed:
Oct. 09, 2009
Hisayoshi Daicho, Shizuoka, JP;
Yasuaki Tsutsumi, Shizuoka, JP;
Takaaki Komatsu, Shizuoka, JP;
Shogo Sugimori, Shizuoka, JP;
Yuji Higashi, Shizuoka, JP;
Hisayoshi Daicho, Shizuoka, JP;
Yasuaki Tsutsumi, Shizuoka, JP;
Takaaki Komatsu, Shizuoka, JP;
Shogo Sugimori, Shizuoka, JP;
Yuji Higashi, Shizuoka, JP;
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
In a light emitting module, light wavelength conversion ceramicconverts the wavelength of the light emitted by a semiconductor light emitting element. The light wavelength conversion ceramicis made so transparent that the light wavelength conversion ceramichaspercent or more of the total light transmittance of the light with a wavelength within the conversion wavelength range. A reflective filmis provided on the surface of the light wavelength conversion ceramicand narrows down the emission area of the light that has transmitted the light wavelength conversion ceramicto an area smaller than the light emitting area of the semiconductor light emitting element. In the case, the reflective filmguides the light such that the light is emitted in the direction approximately parallel to the light emitting surface of the light emitting element