(19)
(11) EP 0 537 705 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.03.1994 Bulletin 1994/12

(43) Date of publication A2:
21.04.1993 Bulletin 1993/16

(21) Application number: 92117537.8

(22) Date of filing: 14.10.1992
(51) International Patent Classification (IPC)5: H04R 1/24, H04R 13/00
(84) Designated Contracting States:
BE CH DE DK FR GB IT LI NL

(30) Priority: 16.10.1991 JP 267951/91

(71) Applicant: LUX CORPORATION
Shinagawa-ku, Tokyo (JP)

(72) Inventor:
  • Iida, Katsuhiko, c/o Lux Corporation
    Shinagawa-ku, Tokyo (JP)

(74) Representative: Modiano, Guido, Dr.-Ing. et al
Modiano, Josif, Pisanty & Staub, Baaderstrasse 3
D-80469 München
D-80469 München (DE)


(56) References cited: : 
   
       


    (54) A loudspeaker


    (57) The present invention relates to a loudspeaker which consists by plural diaphragms, and has wide frequency range. It is an object of the invention to provide a coaxial speaker in which a diaphragm for higher frequencies is of simple construction, light in weight, and has a good compliance at low level reproduction. In order to accomplish the above object, the present invention discloses a loudspeaker comprising a first diaphragm which is driven by a driving signal supplied into a voicecoil which is connected with said first diaphragm, and a ferromagnetic second diaphragm which is supported resiliently.






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