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:
Jan. 31, 2017
Filed:
Feb. 25, 2016
Morten Hjerde, Nesoddtangen, NO;
Morten Hjerde, Nesoddtangen, NO;
Other;
Abstract
Assemblies of temperature monitored, semiconductor light emitting diodes (LEDs) are disclosed that produce color temperature adjustable white light sources. Warm-white LEDs are combined with green and blue LEDs to produce light have continuous spectrum spanning the wavelength range of 400 to 700 nm with a white light point located at a selectable Planckian locus location and a color rendering index greater than 80. The circuitry includes LED temperature monitoring used to adjust LEDs spectral and luminosity output. Alternate arrangements combine warm-white LEDs with green, blue and red LEDs; warm-white and cool-white LEDs with green, blue and red LEDs; warm-white and cool-white LEDs with green LEDs; and a warm-white and cool-white LEDs with green-white LEDs.