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:
May. 20, 2025
Filed:
Aug. 26, 2022
Coretronic Corporation, Hsin-Chu, TW;
Yu-Hsiang Deng, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
An illumination device including a laser light source, a first wavelength selective element, and a wavelength conversion element is provided. The laser light source provides a laser beam. The first wavelength selective element has different transmittances for the laser beam incident at different angles. In a first mode of the illumination device, the laser beam is incident on the first wavelength selective element at a first angle, and the laser beam is reflected by the first wavelength selective element. In a second mode of the illumination device, the laser beam is incident on the first wavelength selective element at a second angle greater than the first angle, and the laser beam penetrates the first wavelength selective element. The wavelength conversion element converts the laser beam into a first converted light beam. A projection device using the illumination device is also provided.