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:
Apr. 04, 2023

Filed:

Jan. 14, 2022
Applicant:

Qisda Corporation, Taoyuan, TW;

Inventors:

Chih-Shiung Chien, Taoyuan, TW;

Ming-Kuen Lin, Taoyuan, TW;

Tsung-Hsun Wu, Taoyuan, TW;

Assignee:

Qisda Corporation, Taoyuan, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/30 (2018.01); G02B 19/00 (2006.01); G02B 26/00 (2006.01); G02B 27/14 (2006.01);
U.S. Cl.
CPC ...
F21V 9/30 (2018.02); G02B 19/0047 (2013.01); G02B 26/008 (2013.01); G02B 27/141 (2013.01);
Abstract

A light source module includes a light source, a dichroic unit, a color wheel and a wavelength conversion unit. The light source is configured to emit a light. The dichroic unit is opposite to the light source and configured to reflect a portion of the light as a first illumination light in a first direction and reflect a portion of the light as a second illumination light in a second direction inverse to the first direction. The color wheel is opposite to the dichroic unit and configured to at least receive the first illumination light. The color wheel has a blue filter area, a green filter area and a red filter area. The wavelength conversion unit is opposite to the color wheel and the dichroic unit and configured to at least receive the second illumination light and provide a converted light to the color wheel.


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