(19)

(11)

EP 1 259 855 A1

(12)

(43) Date of publication: 27.11.2002 Bulletin 2002/48 (21) Application number: 02710182.3 (22) Date of filing: 05.02.2002

(51) International Patent Classification (IPC)7: G02F 1/313 (86) International application number: PCT/GB0200/494 (87) International publication number: WO 0206/3389 (15.08.2002 Gazette 2002/33)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR (30) Priority: 06.02.2001 GB 0102957 (71) Applicant: Alcatel Optronics UK Limited Livingston EH54 8SF (GB)	(72) Inventors: HOEKSTRA, Tsjerk Hans Edinnburgh EH14 7BS (GB) KUIPERS, Wichert NL-1963 DG Heemskerk (NL) (74) Representative: McDonough, Jonathan  Urquhart-Dykes & Lord,Tower House,Merrion Way Leeds LS2 8PA Leeds LS2 8PA (GB)