Patent · US Active

Semiconductor lamp having two groups of LEDs corresponding to upper and lower sides of a reflector

US9316386B2 · kind B2 · utility

14Cited by

6References

17Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Nicole Breidenassel · Bad Abbach, DE
Johannes Hoechtl · Eichstätt, DE
Fabian Reingruber · Munich, DE
Henrike Streppel · Regensburg, DE

Key dates

Filing date	Nov 4, 2011
Grant date	Apr 19, 2016
Priority date	—
Expiry date	Mar 14, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21Y2115/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A semiconductor lamp includes a reflector having a lower side and an upper side, wherein the lower side widens laterally and wherein the lower side and the upper side are separated from one another by an upper rim, and having a first light source group having at least one semiconductor light source and a second light source group having at least one semiconductor light source, wherein the reflector is provided as a cooling body for the first light source group and for the second light source group; wherein at least a part of a light that can be emitted by the first light source group can be reflected by means of the lower side of the reflector at least into a spatial angle range that cannot be directly illuminated by the first light source group.

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