(19)

(11)

EP 0 500 879 A1

(12)

(43) Date of publication: 02.09.1992 Bulletin 1992/36 (21) Application number: 91916115.0 (22) Date of filing: 04.09.1991

(51) International Patent Classification (IPC):  G01J 3/ 02( . ) G01J 3/ 50( . ) (86) International application number: PCT/US1991/006315 (87) International publication number: WO 1992/004606 (19.03.1992 Gazette 1992/07)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 07.09.1990 US 19900579053 (71) Applicant: SEQUEL IMAGING, INC. Londonderry, NH 03053 (US)	(72) Inventors: LUTZ, Carl, David Derry, NH 03038 (US) LIANZA, Thomas, A. Bedford, NH 03102 (US) (74) Representative: White, Martin David, et al  MARKS & CLERK, 57/60 Lincoln's Inn Fields London WC2A 3LS London WC2A 3LS (GB)