(19)
(11) EP 0 554 084 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.01.1994 Bulletin 1994/01

(43) Date of publication A2:
04.08.1993 Bulletin 1993/31

(21) Application number: 93300612.4

(22) Date of filing: 28.01.1993
(51) International Patent Classification (IPC)5: H01H 9/16, H01H 13/70
(84) Designated Contracting States:
GB IT SE

(30) Priority: 28.01.1992 JP 12726/92

(71) Applicant: NEC CORPORATION
Tokyo (JP)

(72) Inventor:
  • Kobayashi, Fumiyuki, c/o NEC Corporation
    Minato-ku, Tokyo (JP)

(74) Representative: Orchard, Oliver John 
JOHN ORCHARD & CO. Staple Inn Buildings North High Holborn
London WC1V 7PZ
London WC1V 7PZ (GB)


(56) References cited: : 
   
       


    (54) Structure of an illumination type key top


    (57) An illumination type key top having a button, a key seat, a key switch including a contact portion, and a light source. When the button is pressed, it presses the contact portion of the key switch via the key seat to cause the light source to emit light. The button and key seat are affixed to each other by adhesive, and each is made of a light transmitting material. A character or similar information is printed on the rear surface of the button such that the light is transmitted only through the character.






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