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:
Oct. 17, 2023
Filed:
Nov. 15, 2021
Coretronic Corporation, Hsin-Chu, TW;
Haw-Woei Pan, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
An illumination system and a projection device using the same are provided. The illumination system provides an illumination light beam and includes a blue light source, a red light source, a wavelength conversion device, a first light splitting element, a filter device, and a light uniformizing element. The blue light source provides a blue excitation light beam. The red light source provides a red light beam. The wavelength conversion device converts the blue excitation light beam into an excited light beam. The filter device includes a filter region. The blue excitation light beam, the excited light beam and the red light beam are sequentially transmitted to the filter device and the light uniformizing element to form the illumination light beam, wherein the excited light beam and the red light beam pass through the filter region in different time interval.