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.

Date of Patent:
May. 05, 2026

Filed:

Sep. 29, 2023
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Wataru Yasumatsu, Azumino, JP;

Yuichiro Matsumoto, Azumino, JP;

Naoya Shindo, Azumino, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 33/12 (2006.01); G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
G03B 33/12 (2013.01); G03B 21/2013 (2013.01); G03B 21/206 (2013.01); G03B 21/2066 (2013.01);
Abstract

A light source apparatus according to an aspect of the present disclosure includes a first light source section that outputs first light containing a first polarized component and a second polarized component, a second light source section that outputs second light, a wavelength converter that converts the first light into third light, a light combiner that combines the first light, the second light, and the third light, and a filter that attenuates light of the third wavelength band. The light combiner reflects the first polarized component and transmits the second polarized component to cause one of the first polarized component and the second polarized component to exit toward the wavelength converter, and transmits the first light and the second light or the third light and reflects the third light or the first light and the second light. The filter is movable.


Find Patent Forward Citations

Yasumatsu, Wataru. (2026). Light source apparatus and projector (U.S. Patent No. 12619140). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12619140

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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