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:
Apr. 24, 2018
Filed:
Sep. 23, 2015
Excelitas Canada, Inc., Vaudreuil-Dorion, CA;
Excelitas Canada, Inc., Vaudreuil-Dorion, CA;
Abstract
An illumination system includes a phosphor to emit light in a wavelength band Δλ, a second light source to emit light at a second wavelength λwithin an absorption band of the phosphor, a third light source to emit light at a third wavelength λand a fourth light source to emit light at a fourth wavelength λ. A controller drives the second, third and fourth light sources. A first dichroic optical element: 1) directs light from the phosphor to an optical output of the system, 2) directs light from the third light source to the optical output, and 3) directs light from the fourth light source to the optical output. A second dichroic optical element: 1) directs light from the third light source to the first dichroic optical element, and 2) directs the light from the fourth light source to the first dichroic optical element.