Global Patent Index - EP 2022298 A1

EP 2022298 A1 20090211 - METHODS AND SYSTEMS FOR CONTROLLING GAS DISCHARGE LAMPS

Title (en)

METHODS AND SYSTEMS FOR CONTROLLING GAS DISCHARGE LAMPS

Title (de)

VERFAHREN UND SYSTEME ZUM STEUERN VON GASENTLADUNGSLAMPEN

Title (fr)

PROCEDES ET SYSTEMES POUR COMMANDER DES LAMPES A DECHARGE

Publication

EP 2022298 A1 20090211 (EN)

Application

EP 07724784 A 20070502

Priority

  • EP 2007003858 W 20070502
  • GB 0608568 A 20060502

Abstract (en)

[origin: GB2437755A] The present invention relates to a control system (100) for controlling a gas discharge system (10), the lamp control system (100) comprising a detection means (102) for detecting a physical parameter such as e.g. an optical parameter from said gas discharge lamp (10), an evaluation means (104) for spectrally evaluating variations in said optical parameter. The control system may also comprise a controlling means (106) for controlling an operating frequency of said gas discharge system (10) based on said evaluated physical parameter. The system typically is adapted for reducing arc instabilities in a gas discharge lamp, although other gas discharge systems may be adapted as well. The invention also relates to a corresponding optical system, and to a method for controlling a gas discharge system, such as e.g. a gas discharge lamp.

IPC 8 full level

H05B 41/292 (2006.01)

CPC (source: EP GB)

G05B 11/01 (2013.01 - GB); G05B 13/02 (2013.01 - GB); H05B 41/2928 (2013.01 - EP)

Citation (search report)

See references of WO 2007128472A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

GB 0608568 D0 20060607; GB 2437755 A 20071107; EP 2022298 A1 20090211; WO 2007128472 A1 20071115

DOCDB simple family (application)

GB 0608568 A 20060502; EP 07724784 A 20070502; EP 2007003858 W 20070502