(19)
(11) EP 0 372 837 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.12.1990 Bulletin 1990/50

(43) Date of publication A2:
13.06.1990 Bulletin 1990/24

(21) Application number: 89312506.2

(22) Date of filing: 30.11.1989
(51) International Patent Classification (IPC)5: B42D 15/02
(84) Designated Contracting States:
BE CH DE FR GB IT LI

(30) Priority: 07.12.1988 GB 8828595

(71) Applicant: PMI DATA LIMITED
Wokingham Berkshire RG11 2YQ (GB)

(72) Inventors:
  • Miller, David William
    Wokingham Berks. RG11 2YQ (GB)
  • Steele, Keith Christopher
    Wokingham Berks. RG11 2YQ (GB)

(74) Representative: Butler, Lance 
Butler & Company PO Box 117 73 The Glade Fetcham
Leatherhead, Surrey KT22 9LQ
Leatherhead, Surrey KT22 9LQ (GB)


(56) References cited: : 
   
       


    (54) Identification cards


    (57) An ID card which comprises an opaque base which has adhered thereto a sheet which comprises an easy to recognise representational image (10) of the person to whom the card relates and at least one modulated image (11) which bears a recognisable relationship to the representational image but which has been altered with respect to its density and/or colour and/or spatial characteristics.
    Preferably the altered image has been modulated electronically.







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