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:
Jul. 28, 2026

Filed:

Dec. 21, 2023
Applicant:

Coretronic Corporation, Hsin-Chu, TW;

Inventors:

Yi-Tien Lu, Hsin-Chu, TW;

Chin-Wen Huang, Hsin-Chu, TW;

Kuan-Lun Chen, Hsin-Chu, TW;

Assignee:

Coretronic Corporation, Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01); G03B 21/00 (2006.01); G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
G03B 21/208 (2013.01); G03B 21/005 (2013.01); G03B 21/204 (2013.01); G03B 21/2066 (2013.01);
Abstract

An illumination system provides an illumination light beam and includes a light source device providing a first light beam, a dichroic element, a lens module, and a wavelength conversion element disposed on a transmission path of the first light beam and configured to convert the first light beam into a second light beam. The dichroic element is disposed between the light source device and the wavelength conversion element, guides the first light beam from the light source device to the wavelength conversion element, and transmits the second light beam from the wavelength conversion element. The lens module is disposed between the dichroic element and the wavelength conversion element. The lens module includes a first lens element including a first surface and a second surface opposite to each other, and at least one of the first surface and the second surface is a Fresnel structure surface.


Find Patent Forward Citations

Lu, Yi-Tien. (2026). Illumination system and projection apparatus (U.S. Patent No. 12693589). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12693589

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

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