Patent · US Active

Lighting apparatus

US9086217B2 · kind B2 · utility

2Cited by

2References

18Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Klaus Eckert · Herbrechtingen, DE
Markus Hofmann · Bad Abbach, DE

Key dates

Filing date	Feb 24, 2012
Grant date	Jul 21, 2015
Priority date	—
Expiry date	Mar 7, 2032

Classification

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

Abstract

A lighting device includes at least one space for receiving at least one functional element, the space being connected to at least one semipermeable transmission element and otherwise closed off in a sealed manner and the at least one transmission element being transmissive to air in both directions and non-transmissive to water, at least in the direction of the space.

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