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:
Oct. 21, 2025

Filed:

Nov. 23, 2022
Applicant:

Delta Electronics, Inc., Taoyuan, TW;

Inventor:

Hung-Ying Lin, Taoyuan, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); G03B 21/2013 (2013.01); G03B 21/2053 (2013.01); G03B 21/2066 (2013.01); G03B 21/208 (2013.01);
Abstract

The disclosure provides projection device and light source system thereof. The light source system includes a first light source, a second light source, a curved surface reflection element and a wavelength conversion element. The first light source is configured to emit a first light beam. The second light source is configured to emit a second light beam. The curved surface reflection element has a first focal point and a groove, wherein the groove is adjacent to the first focal point. The wavelength conversion element is arranged through the groove and has a first surface and a second surface, wherein the first light beam is incident on a first area of the first surface where the first focal point located, and the second light beam is incident on a second area of the second surface where the first focal point located.


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