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:
Jan. 02, 2024
Filed:
Mar. 03, 2022
Coretronic Corporation, Hsin-Chu, TW;
Hung-Wei Liu, Hsin-Chu, TW;
Chien-Chung Liao, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
Provided is a projection device including a laser light source, a wavelength conversion element having wavelength and non-wavelength conversion regions, a diffuser element having first and second regions, a filter element, a beam splitting element, a first light valve, a second light valve, and a projection lens. During simultaneous rotation of the diffuser element and the wavelength conversion element, the first and second regions correspond respectively to the wavelength and non-wavelength conversion regions. The filter element is disposed in the first region, filtering out a laser beam emitted by the laser light source. The beam splitting element guides first and second sub-beams in a first beam passing through the first region of the diffuser element and the filter element respectively to the first and second light valves, and guides a second beam passing through the second region of the diffuser element to one of the first and second light valves.