Patent · US Active

Method for operating a lamp and electronic ballast

US8884544B2 · kind B2 · utility

0Cited by

7References

13Claims

0Family size

Assignee

OSRAM Gesellschaft mit beschraenkter Haftung · DE

Inventors

Walter Limmer · Birkenfeld, DE
Thomas Rossmanith · Munich, DE

Key dates

Filing date	Dec 4, 2008
Grant date	Nov 11, 2014
Priority date	—
Expiry date	Aug 10, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/40
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for operating a lamp may include: Connecting a device to a pair of input connections of an electronic ballast and by this means determining a respective dimming duration for at least one predetermined situation; and Activating the lamp by the electronic ballast in at least one predetermined situation such that the lamp emits light with a reduced intensity compared with the normal intensity at which the lamp otherwise emits light over a period of a dimming duration determined for this situation.

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