Patent · US Active

Optoelectronic device

US9538609B2 · kind B2 · utility

0Cited by

4References

21Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Horst Varga · Lappersdorf, DE
Ralph Wirth · Lappersdorf, DE

Key dates

Filing date	Mar 30, 2011
Grant date	Jan 3, 2017
Priority date	—
Expiry date	Apr 27, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH05B45/20
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An optoelectronic device that radiates mixed light including a first semiconductor light source which radiates light in a first wavelength range at a first intensity, a second semiconductor light source which radiates light in a second wavelength range at a second intensity, a third semiconductor light source which radiates light in a third wavelength range at a third intensity, a resistance element having a temperature-dependent electrical resistance, and a semiconductor light source control element that controls the intensity of the third semiconductor light source.

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