(19)

(11)

EP 0 733 229 A1

(12)

(43) Date of publication: 25.09.1996 Bulletin 1996/39 (21) Application number: 94911353.0 (22) Date of filing: 22.03.1994

(51) International Patent Classification (IPC):  G02B 27/ 22( . ) H04N 9/ 31( . ) G03B 21/ 132( . ) (86) International application number: PCT/SE1994/000253 (87) International publication number: WO 1994/022049 (29.09.1994 Gazette 1994/22)

(84) Designated Contracting States: DE FR GB (30) Priority: 23.03.1993 SE 19930000958 (71) Applicant: Optica Nova ONAB AB S-100 55 Stockholm (SE)	(72) Inventor: BERGLUND, Stig S-115 38 Stockholm (SE) (74) Representative: Hammond, Andrew David  Albihn West AB, P.O. Box 142 401 22 Göteborg 401 22 Göteborg (SE)