The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2015
Filed:
Apr. 21, 2011
Xaver Riederer, Aachen, DE;
Lars Dabringhausen, Aachen, DE;
Xaver Riederer, Aachen, DE;
Lars Dabringhausen, Aachen, DE;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
The invention describes a method of driving an arc-discharge lamp (), which method comprises the steps of detecting a mechanically induced fluctuation in luminous flux of the lamp () occurring as a result of a physical displacement of the discharge arc (), determining a characteristic () of the mechanically induced fluctuation in luminous flux of the lamp (), and adjusting the lamp power on the basis of the determined characteristic () to suppress the mechanically induced fluctuation in luminous flux of the lamp (). The invention further describes a driver () for an arc-discharge lamp (), which driver comprises a detecting means () for detecting a mechanically induced fluctuation in luminous flux of the lamp () occurring as a result of a physical displacement of the discharge arc (), a determination unit () for determining a characteristic () of the mechanically induced fluctuation in luminous flux of the lamp (); and an adjustment unit () for adjusting a lamp power (Pc) on the basis of the determined characteristic () to suppress the mechanically induced fluctuation in luminous flux of the lamp (). The invention also describes a lighting assembly () comprising a high-intensity gas-discharge lamp () and such a driver () for driving the lamp () according to the inventive method.