(19)

(11)

EP 1 517 865 A1

(12)

(43) Date of publication: 30.03.2005 Bulletin 2005/13 (21) Application number: 03735904.9 (22) Date of filing: 12.06.2003

(51) International Patent Classification (IPC)7: C03C 8/14, C03C 8/24, C03C 27/06 (86) International application number: PCT/IB2003/002730 (87) International publication number: WO 2004/000745 (31.12.2003 Gazette 2004/01)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 20.06.2002 EP 02077454 (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventors: STEIGELMANN, Oliver NL-5656 AA Eindhoven (NL) MULDERIJ, Ton, R. NL-5656 AA Eindhoven (NL) VAN HAL, Henricus, A., M. NL-5656 AA Eindhoven (NL) (74) Representative: Deguelle, Wilhelmus H. G.  PhilipsIntellectual Property & StandardsP.O. Box 220 5600 AE Eindhoven 5600 AE Eindhoven (NL)