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:
May. 14, 2019
Filed:
Feb. 27, 2014
Signify Holding B.v., Eindhoven, NL;
Gerardus Wilhelmus Gerbe Van Dreumel, Nijmegen, NL;
Egbert Lenderink, Waalre, NL;
Hicham Sabir, Eindhoven, NL;
Bijan Vatan Khah, Tilburg, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
A dimmable light emitting arrangement () has a relatively low correlated color temperature in the dimmed state, and a relatively high and constant color rendering index. The dimmable light emitting arrangement () comprises a first light source () adapted to emit light of a first wavelength range between 380 and 460 nm, a second light source () adapted to emit light of a second wavelength range between 570 and 610 nm, a first wavelength converting material (), and a second wavelength converting material (). The first wavelength converting material () receives light from the first light source () and converts light of the first wavelength range into light having an emission peak within a third wavelength range between 470 and 570 nm. The second wavelength converting material () receives light from the first and second light sources, and converts light of the first wavelength range and light the second wavelength range into light having an emission peak within a fourth wavelength range between 590 and 630 nm.