(19)

(11)

EP 1 719 007 A1

(12)

(43) Date of publication: 08.11.2006 Bulletin 2006/45 (21) Application number: 05708180.4 (22) Date of filing: 15.02.2005

(51) International Patent Classification (IPC):  G02B 6/30(2006.01) (86) International application number: PCT/FI2005/000100 (87) International publication number: WO 2005/078492 (25.08.2005 Gazette 2005/34)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 16.02.2004 FI 20045041 (71) Applicant: Corelase OY 33720 Tampere (FI)	(72) Inventors: SALOKATVE, Arto FI-33710 Tampere (FI) REKOW, Matt FI-33210 Tampere (FI) (74) Representative: Brax, Matti Juhani  Berggren Oy Ab, P.O. Box 16 00101 Helsinki 00101 Helsinki (FI)