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:
Jul. 23, 2019
Filed:
Apr. 04, 2018
Seiko Epson Corporation, Tokyo, JP;
Kunihiko Takagi, Okaya, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A light source apparatus includes a light emitter that emits excitation light, a support member having an accommodation space on the optical path of the excitation light, a light guide system provided on the optical path in the accommodation space, and a wavelength conversion element provided on the optical path of the excitation light having passed through the light guide system and including a phosphor layer, a substrate that supports the phosphor layer, and a light reflection surface provided between the phosphor layer and the substrate. The substrate is so supported by the support member that the phosphor layer faces the light guide system. The substrate is thermally connected to the support member, and the support member includes a light exit section that transmits fluorescence emitted from the phosphor layer.