(19)
(11) EP 0 981 777 A1

(12)

(43) Date of publication:
01.03.2000 Bulletin 2000/09

(21) Application number: 98921612.2

(22) Date of filing: 14.05.1998
(51) International Patent Classification (IPC)7G02B 27/14, G02B 17/00, A01J 7/00, G01N 21/88
(86) International application number:
PCT/GB9801/383
(87) International publication number:
WO 9852/087 (19.11.1998 Gazette 1998/46)
(84) Designated Contracting States:
BE DE DK ES FR GB IE IT NL PT

(30) Priority: 14.05.1997 GB 9709738

(71) Applicant: BTG INTERNATIONAL LIMITED
London EC4M 7SB (GB)

(72) Inventors:
  • ROSS, David, William
    Edinburgh EH10 7DZ (GB)
  • STIRLING, Hugh, Gerald
    London SE3 7HU (GB)

(74) Representative: Bingham, Ian Mark 
British Technology Group Ltd.,10 Fleet Place
London EC4M 7SB
London EC4M 7SB (GB)

   


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