Patent · US Active

Lighting device for generating a light emission and method for generating a light emission

US9709225B2 · kind B2 · utility

2Cited by

2References

15Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Ion Stoll · Tegernheim, DE
Dominik Eisert · Regensberg, DE
Britta Göötz · Regensburg, DE
Robert Schulz · Grayling, US

Key dates

Filing date	Sep 2, 2013
Grant date	Jul 18, 2017
Priority date	—
Expiry date	Nov 1, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH10K50/125
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lighting device, in various embodiments, for generating a light emission, has a light source designed to generate light with a first dominant wavelength, a first converter designed to absorb the light generated by the light source and to emit light with a second dominant wavelength, which is longer than the first dominant wavelength, and a second converter designed to absorb a portion of the light emitted by the first converter and to emit light such that the light emission has a third dominant wavelength, which is longer than the second dominant wavelength.

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