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:
Jan. 04, 2022
Filed:
Nov. 29, 2019
Seiko Epson Corporation, Tokyo, JP;
Osamu Okumura, Chino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A light source device according to the present disclosure includes a light-emitting body configured to emit first wavelength range light, a wavelength converter that includes an incident surface on which the first wavelength range light is incident, and an emission surface configured to convert the first wavelength range light to second wavelength range light and subsequently emit, and for which the incident surface is set to be larger than the emission surface, a light collector including a light input part configured to enter the second wavelength range light, and a scattering part disposed on the emission surface of the wavelength converter or on a side closer to the light collector than the emission surface, wherein the light collector includes a reflective layer configured to reflect the second wavelength range light entered by the light input part.