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.

Date of Patent:
Oct. 20, 2020

Filed:

Sep. 07, 2018
Applicant:

Ledvance Gmbh, Garching bei München, DE;

Inventors:

Philipp Schlosser, Regensburg, DE;

Reiner Windisch, Pettendorf, DE;

Assignee:

LEDVANCE GMBH, Garching Bei Munchen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/50 (2010.01); H01L 25/075 (2006.01); H05B 45/20 (2020.01); H05B 33/20 (2006.01);
U.S. Cl.
CPC ...
H01L 33/50 (2013.01); H01L 33/504 (2013.01); H05B 45/20 (2020.01); H05B 33/20 (2013.01);
Abstract

A light-emitting component has a light-emitting diode chip which emits blue light with a peak wavelength of at least 450 nm and at most 465 nm. A conversion element is arranged downstream of the light-emitting diode chip in an emission direction. The conversion element contains a green fluorescent substance and a red fluorescent substance. During operation of the component the green fluorescent substance converts a part of the blue light into green light and the red fluorescent substance converts a part of the blue light into red light. The combination of the light-emitting diode chip and the conversion element thereby emits a cold white mixed light, comprising at least a part of the blue light, the green light, and the red light, wherein the cold white mixed light has a melanopic action factor of at least 0.85.


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