(19)

(11)

EP 0 898 728 A1

(12)

(43) Date of publication: 03.03.1999 Bulletin 1999/09 (21) Application number: 97922031.0 (22) Date of filing: 13.05.1997

(51) International Patent Classification (IPC):  G02C 1/ 02( . ) G02C 5/ 22( . ) G02C 1/ 06( . ) (86) International application number: PCT/IT1997/000109 (87) International publication number: WO 1997/043683 (20.11.1997 Gazette 1997/50)

(84) Designated Contracting States: AT BE DE DK ES FI FR GB GR IE IT LU NL PT SE (30) Priority: 16.05.1996 IT 1996FI00116 23.12.1996 IT 1996FI00305 (71) Applicant: BOTTEGA D'ARTE IN FIRENZE S.R.L. 50136 Firenze (IT)	(72) Inventor: FORTINI, Paolo I-50141 Firenze (IT) (74) Representative: Mannucci, Gianfranco, Dott.-Ing., et al  Ufficio Tecnico Ing. A. Mannucci Via della Scala 4 50123 Firenze 50123 Firenze (IT)