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:
Mar. 06, 2018
Filed:
Jul. 30, 2015
Cree, Inc., Durham, NC (US);
Michael John Bergmann, Raleigh, NC (US);
Julio Garceran, Cary, NC (US);
Cree, Inc., Durham, NC (US);
Abstract
A small form factor LED lighting system provides for color-controlled dimming. Embodiments of the invention use one or more small-footprint LED(s) that can emit light of different correlated color temperatures (CCTs, colors or spectral outputs). The CCT of the fixture or bulb can change when dimmed by disproportionate adjustment of the driving power for each color. The small size and footprint of the LEDs enables use in decorative LED lamps, such as those designed to replace candelabra style incandescent bulbs. Various options can be used to tune the performance and lighting characteristics of a lamp according to embodiments of the invention, such as the use of differing LED device package optics, the use of reflective materials in and/or around LED device packages, and the use of a secondary optic to produce an omnidirectional light pattern.