(19)

(11)

EP 0 149 608 A1

(12)

(43) Date of publication: 31.07.1985 Bulletin 1985/31 (21) Application number: 83903390.0 (22) Date of filing: 13.10.1983

(51) International Patent Classification (IPC):  G09F 13/ 08( . ) G09F 19/ 12( . ) G09F 13/ 10( . ) (86) International application number: PCT/GB1983/000260 (87) International publication number: WO 1984/001654 (26.04.1984 Gazette 1984/11)

(84) Designated Contracting States: AT BE DE FR GB LU NL SE (30) Priority: 13.10.1982 GB 19820029221 09.11.1982 GB 19820031929 (71) Applicant: STEREOSCOPIC DISPLAYS LIMITED Surrey GU1 4JW (GB)	(72) Inventor: SIEWIERSKI, Andrzej, Adam Clandon, Surrey (GB)