(19)
(11) EP 0 956 495 A1

(12)

(43) Date of publication:
17.11.1999 Bulletin 1999/46

(21) Application number: 98902110.0

(22) Date of filing: 30.01.1998
(51) International Patent Classification (IPC): 
G01N 21/ 35( . )
A61B 5/ 1455( . )
G01N 21/ 31( . )
A61B 5/ 145( . )
A61B 5/ 1495( . )
(86) International application number:
PCT/GB1998/000297
(87) International publication number:
WO 1998/034097 (06.08.1998 Gazette 1998/31)
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 31.01.1997 GB 19970002018

(71) Applicant: UNIVERSITY COLLEGE LONDON
London WC1E 6BT (GB)

(72) Inventors:
  • KOHL, Matthias
    London WC1E 6BT (GB)
  • WATSON, Russell
    London WC1E 6BT (GB)
  • COPE, Mark
    London WC1E 6BT (GB)

(74) Representative: Moir, Michael Christopher, et al 
Mathys & Squire 100 Gray's Inn Road
London WC1X 8AL
London WC1X 8AL (GB)

   


(54) DETERMINATION OF THE RATIO OF ABSORPTION COEFFICIENTS AT DIFFERENT WAVELENGTHS IN A SCATTERING MEDIUM