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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.:

US 9458971 B1

PDFFull Text
Date of Patent:
Oct. 04, 2016

Filed:

May. 01, 2015

Led lamp with high color rendering index

Applicant:

Cree, Inc., Durham, NC (US);

Inventors:

Antony Paul van de Ven, Hong Kong, CN;

Gerald H. Negley, Chapel Hill, NC (US);

Dong Lu, Cary, NC (US);

Assignee:

Cree, Inc., Durham, NC (US);

Attorneys:

Steven B. Phillips

Moore & Van Allen PLLC

Primary Examiner:

Karabi Guharay

Int. Cl.
CPC ...
F21K 99/00 (2016.01); F21V 13/00 (2006.01); F21V 23/02 (2006.01); F21V 29/51 (2015.01); F21V 3/04 (2006.01); F21V 7/00 (2006.01); F21V 7/04 (2006.01); F21V 3/02 (2006.01); F21V 29/77 (2015.01); F21V 29/83 (2015.01); F21Y 101/02 (2006.01); F21Y 105/00 (2016.01); F21Y 113/00 (2016.01);
U.S. Cl.
CPC ...
F21K 9/1355 (2013.01); F21K 9/135 (2013.01); F21K 9/50 (2013.01); F21K 9/54 (2013.01); F21K 9/90 (2013.01); F21V 3/02 (2013.01); F21V 3/04 (2013.01); F21V 7/0016 (2013.01); F21V 7/041 (2013.01); F21V 23/02 (2013.01); F21V 29/51 (2015.01); F21V 29/773 (2015.01); F21V 29/83 (2015.01); F21Y 2101/02 (2013.01); F21Y 2105/001 (2013.01); F21Y 2113/005 (2013.01); Y10T 29/49002 (2015.01); Y10T 29/49119 (2015.01);
Abstract

An LED lamp with a high color rendering index (CRI) is disclosed. Example embodiments of the invention provide an LED lamp with a relatively high color rendering index (CRI). In some embodiments, the lamp has other advantageous characteristics, such as good angular uniformity. In some embodiments, the LED lamp is sized and shaped as a replacement for a standard incandescent bulb, and includes an LED assembly with at least first and second LEDs operable to emit light of two different colors. In some embodiments, the lamp can emit light with a color rendering index (CRI) of at least 90 without remote wavelength conversion. In some embodiments, the LED lamp conforms some, most, or all of the product requirements for a 60-watt incandescent replacement for the L prize.

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