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:
Dec. 14, 2021
Filed:
Apr. 25, 2019
Coretronic Corporation, Hsin-Chu, TW;
Haw-Woei Pan, Hsin-Chu, TW;
Chih-Hsien Tsai, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
An illumination system comprises a blue light source, an excitation light source, a first dichroic element and a wavelength converting element. The blue light source provides a blue light beam. An excitation light source provides an excitation beam. The first dichroic element is disposed on transmitting paths of the blue light beam and the excitation beam. The wavelength converting element is disposed on a transmitting path of the excitation beam and adapted to convert the excitation beam into an excited beam. The excitation beam passes through the first dichroic element to the wavelength converting element and converted into the excited beam. The excited beam is transmitted to the first dichroic element and reflected. A wavelength of the blue light beam is greater than a wavelength of the excitation beam, and the blue light source and the excitation light source are disposed on the same side of the first dichroic element.