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:
Dec. 31, 2019
Filed:
Dec. 12, 2018
Seiko Epson Corporation, Tokyo, JP;
Kunihiko Takagi, Okaya, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
The invention relates to a wavelength conversion element including a wavelength conversion layer having a first surface including an excitation light irradiated region irradiated with excitation light and a second surface being opposed to the first surface, the wavelength conversion layer wavelength-converting the excitation light into converted light having a wavelength different from the wavelength of the excitation light, a reflection member provided on a portion of the second surface, the reflection member including an inorganic oxide layer and reflecting the excitation light and the converted light, a first layer disposed in a first region that faces the reflection member and in a second region that does not face the reflection member on the second surface of the wavelength conversion layer, a bonding material so provided as to face the first layer, and a base bonded to the first layer via the bonding material.