Patent · US Active

Light-emitting device

US8981394B2 · kind B2 · utility

0Cited by

1References

17Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Christian Gaertner · Regensburg, DE
Ales Markytan · Regensburg, DE
Jan Marfeld · Regensburg, DE

Key dates

Filing date	Mar 8, 2012
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Mar 12, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/8513
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A light-emitting device includes at least one first light-emitting semiconductor component, which radiates red light during operation, at least one second light-emitting semiconductor component having a wavelength conversion element, and at least one third light-emitting semiconductor component having a wavelength conversion element. The second and third light-emitting semiconductor components each radiate blue primary light and converted secondary light and the respective superposition of the primary light and the secondary light of the second and third light-emitting semiconductor components has different chromaticity coordinates.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.