(19)

(11)

EP 1 716 441 A1

(12)

(43) Date of publication: 02.11.2006 Bulletin 2006/44 (21) Application number: 05708184.6 (22) Date of filing: 17.02.2005

(51) International Patent Classification (IPC):  G02B 6/43(2006.01) H05K 1/18(2006.01) (86) International application number: PCT/FI2005/000104 (87) International publication number: WO 2005/078497 (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: 17.02.2004 FI 20040253 (71) Applicant: Aspocomp Technology Oy 01510 Vantaa (FI)	(72) Inventors: HIETALA, Joni FI-37830 Viiala (FI) VON LERBER, Tuomo FI-00650 Helsinki (FI) MUUKKONEN, Esa FI-01520 Vantaa (FI) (74) Representative: Knuth-Lehtola, Sisko Hillevi et al Seppo Laine Oy, Itämerenkatu 3 B 00180 Helsinki 00180 Helsinki (FI)