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:
Mar. 22, 2022
Filed:
Jul. 30, 2020
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Kunihiko Takagi, Okaya, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01); G03B 21/16 (2006.01); G03B 21/20 (2006.01); G03B 33/12 (2006.01);
U.S. Cl.
CPC ...
G03B 21/145 (2013.01); G03B 21/16 (2013.01); G03B 21/204 (2013.01); G03B 33/12 (2013.01);
Abstract
A light source device of the present disclosure includes a light source, a wavelength conversion unit having a fluorescent material excited by a light output from the light source and generating fluorescence and a fluorescent material supporting substrate supporting the fluorescent material, and a housing part with the light source fixed thereto supporting the wavelength conversion unit, wherein the wavelength conversion unit is shiftably supported relative to the housing part.