(19)

(11)

EP 0 250 463 A1

(12)

(43) Date of publication: 07.01.1988 Bulletin 1988/01 (21) Application number: 86906392.0 (22) Date of filing: 24.10.1986

(51) International Patent Classification (IPC):  G03B 13/ 36( . ) G02B 7/ 28( . ) (86) International application number: PCT/GB1986/000660 (87) International publication number: WO 1987/003705 (18.06.1987 Gazette 1987/13)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 16.12.1985 GB 19850030919 (71) Applicant: JOLLY GOOD PRODUCTIONS LIMITED London SW1 (GB)	(72) Inventor: BENTINCK VAN SCHOONHETEN, Steven, Carel Pisoni Ascona (CH) (74) Representative: Allen, Oliver John Richard, et al  Lloyd Wise, Tregear & Co. Norman House 105-109 Strand London, WC2R 0AE London, WC2R 0AE (GB)