Patent · US Active

Mixed light source

US9097392B2 · kind B2 · utility

1Cited by

2References

12Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Ralph Bertram · Herzogenrath, DE
Ralph Wirth · Lappersdorf, DE
Jan Marfeld · Regensburg, DE

Key dates

Filing date	Jul 15, 2010
Grant date	Aug 4, 2015
Priority date	—
Expiry date	May 12, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/851
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A mixed light source comprising: a first radiation source, which emits radiation in the red spectral range; an excitation source, which contains a III-V semiconductor material; and a conversion substance, which, during the operation of the mixed light source, converts the radiation of the excitation source at least partly into radiation whose color locus in the CIE chromaticity diagram lies within a polygon spanned by the coordinates (0.1609; 0.497), (0.35; 0.6458), (0.558; 0.444) and (0.453; 0.415).

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