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:
Aug. 20, 2019
Filed:
Mar. 28, 2018
Coretronic Corporation, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A projector and an illumination system thereof are provided. The illumination system includes an excitation light source group, a phosphor wheel, a light combiner element and a first lens group. The excitation light source group provides a first beam and has a first optical axis. The phosphor wheel has a reflection region and a wavelength conversion region. The light combiner element is disposed between the excitation light source group and the phosphor wheel and has a dichroic portion and a reflection portion. The first lens group is disposed between the light combiner element and the phosphor wheel. The first lens group has a second optical axis. The illumination system is provided in the projector to reduce the number of optical elements, thereby reducing the cost and volume.