(19)

(11)

EP 0 065 954 A1

(12)

(43) Date of publication: 08.12.1982 Bulletin 1982/49 (21) Application number: 81902496.0 (22) Date of filing: 12.08.1981

(51) International Patent Classification (IPC):  G02B 27/ 22( . ) G09F 13/ 12( . ) G03B 21/ 00( . ) G09F 19/ 12( . ) (86) International application number: PCT/NL1981/000020 (87) International publication number: WO 1982/000911 (18.03.1982 Gazette 1982/08)

(84) Designated Contracting States: CH DE FR GB LI NL SE (30) Priority: 29.08.1980 US 19800182550 (71) Applicant: KASSIES, Michiel NL-1075 KK Amsterdam (NL)	(72) Inventor: KASSIES, Michiel NL-1075 KK Amsterdam (NL) (74) Representative: Meijer, Cornelis Adrianus  Duinwijckweg 12 A NL-2061 AB Bloemendaal NL-2061 AB Bloemendaal (NL)