(19)

(11)

EP 0 579 632 A1

(12)

(43) Date of publication: 26.01.1994 Bulletin 1994/04 (21) Application number: 92907327.0 (22) Date of filing: 02.04.1992

(51) International Patent Classification (IPC):  G01N 27/ 26( . ) G01N 27/ 416( . ) G01N 27/ 27( . ) (86) International application number: PCT/EP1992/000769 (87) International publication number: WO 1992/017775 (15.10.1992 Gazette 1992/26)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE (30) Priority: 04.04.1991 GB 19910007036 (71) Applicants: KODAK LIMITED Harrow, Middlesex HA1 4TY (GB) EASTMAN KODAK COMPANY Rochester, New York 14650-2201 (US)	(72) Inventors: EDWARDS, Stephen, John Middlesex HA5 4TT (GB) FUGGLE, Graham, Anthony 76 Headstone Lane Middlesex (GB) (74) Representative: Tribe, Thomas Geoffrey, et al  F.J. Cleveland & Company 40-43 Chancery Lane London WC2A 1JQ London WC2A 1JQ (GB)