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:
May. 30, 2023
Filed:
Nov. 10, 2022
Seiko Epson Corporation, Tokyo, JP;
Takehiko Hagihara, Azumino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A light source device according to an aspect of the present disclosure includes a light source unit, a wavelength conversion unit including a wavelength conversion wheel, and a wheel housing configured to expose a part of the wavelength conversion wheel and house the wavelength conversion wheel, and an optical unit including a condensing optical system, a pickup optical system, and an optical housing. The light source unit and the optical unit are fixed in a sealed state. In the optical unit and the wavelength conversion unit, a part of the wavelength conversion wheel exposed via a first opening section of the wheel housing is disposed on an optical path between the condensing optical system and the pickup optical system. The second opening section of the optical housing and the first opening section of the wheel housing are fixed in a sealed state.