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:
Jun. 14, 2011
Filed:
Jan. 28, 2008
Hironobu Sakamoto, Tokyo, JP;
Dai Aoki, Tokyo, JP;
Takahiro Saida, Tokyo, JP;
Stanley Electric Co., Ltd., Tokyo, JP;
Abstract
A light emitting device is configured to prevent leakage of light but can be reduced in thickness as compared with conventional devices, and can effectively prevent degradation in luminous flux (luminous flux drop). The light emitting device can include a light emitting element, an optically transparent sealing resin having a pair of faces opposed to each other with an axis of light emitting direction of the light emitting device interposed therebetween. The sealing resin can cover the light emitting element and be mixed with a wavelength converting material. A reflective film can be provided on at least one of the pair of opposed faces of the sealing resin. The reflective film can be a white coating containing a white pigment in a concentration of 23 wt % to 54 wt % and formed to be 14 μm to 50 μm in thickness.