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:
Oct. 13, 2020
Filed:
Jan. 25, 2019
Nichia Corporation, Anan-shi, Tokushima, JP;
Takuya Nakabayashi, Tokushima, JP;
Tetsuya Ishikawa, Komatsushima, JP;
NICHIA CORPORATION, Anan-shi, JP;
Abstract
A light emitting device includes a light emitting element including a first surface; a light guide member covering at least a part of a lateral surface of the light emitting element; a first wavelength conversion member covering the first surface and including a first wavelength conversion particles; and a reflective member being in contact with the light emitting element. The first wavelength conversion member has a thickness of 60 μm or more and 120 μm or less. The first wavelength conversion particles have an average particle size of 4 μm or longer and 12 μm or smaller; the first wavelength conversion particles have a central particle size of 4 μm or longer and 12 μm or smaller. A weight ratio of the first wavelength conversion particles is 60% by weight or more and 75% by weight or less with respect to the total weight of the first wavelength conversion member.