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:
Jul. 04, 2023
Filed:
Nov. 26, 2021
Coretronic Corporation, Hsin-Chu, TW;
Yu-Shan Chen, Hsin-Chu, TW;
Wan-Ting Hsieh, Hsin-Chu, TW;
Ming-Tsung Weng, Hsin-Chu, TW;
Chi-Tang Hsieh, Hsin-Chu, TW;
Haw-Woei Pan, Hsin-Chu, TW;
Jo-Han Hsu, Hsin-Chu, TW;
Kuan-Ta Huang, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
An illumination system, including a light source module, a phosphor wheel, a light recycling element, and a light uniformizing element, is provided. The light source module emits an excitation light beam. The phosphor wheel includes a phosphor region. At a second timing, the other part of the excitation light beam transmitted to the phosphor region forms an unconverted light beam and is transmitted to the light recycling element, and is reflected by the light recycling element to form a recycled light beam. A part of the recycled light beam is converted into a second converted light beam. A first converted light beam and the second converted light beam are transmitted to the light uniformizing element through a same path, so that the illumination system outputs second light in the illumination light beam. A projection apparatus is also provided.