Title:
LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2000/078092
Kind Code:
A1
Abstract:
The present invention relates to a loudspeaker module (1) for high-quality vocal and musical reproduction, wherein said module includes a direct-radiation main electrodynamic head (2) for converting the electrical signal into an acoustic one in the medium portion at least of the sound frequency range. The module also includes an acoustic conformation body (3) of the head (2) whose diffuser (5) covers the opening on the outer surface of said body. The device also includes axial-symmetry sound reflectors (4) directed towards the radiating opening of the main electrodynamic head (2) and mounted outside the acoustic conformation body (5) so as to be coaxial with the axis (6) of said main electrodynamic head (2). The following relations are also provided relations 0,5 R¿E?<$g(D)<0,25 $g(l)¿max?, and S¿R? = (1/3 $m(X) 4)S¿E? where R¿E? is the radius of the effective surface area of the radiating surface of the main electrodynamic head (2), $g(D) is the distance between the radiating opening of the main electrodynamic head (2) and the sound reflector (4), $g(l)¿max? is the maximal length in the air of the sound wave to be reproduced by the main electrodynamic head (2), S¿R? is the surface area of the sound reflector and S¿E? is the effective surface area of the radiating surface of the main electrodynamic head (2). The device may further include a direct-radiation low-frequency electrodynamic head with a corresponding low-frequency radiation reflector as well as a high-frequency electrodynamic head.
Inventors:
VINOGRADOV ALEXEI VLADIMIROVIC (RU)
GAIDAROV ALEXANDR SERGEEVICH (RU)
GAIDAROV ALEXANDR SERGEEVICH (RU)
Application Number:
PCT/RU2000/000225
Publication Date:
December 21, 2000
Filing Date:
June 09, 2000
Export Citation:
Assignee:
VINOGRADOV ALEXEI V (RU)
GAIDAROV ALEXANDR SERGEEVICH (RU)
GAIDAROV ALEXANDR SERGEEVICH (RU)
International Classes:
H04R1/26; H04R1/28; H04R1/02; H04R1/32; H04R1/34; H04R5/00; H04R5/02; H04R9/06; H04R27/00; (IPC1-7): H04R1/28; H04R5/02
Domestic Patent References:
| WO1990005434A1 | 1990-05-17 |
Foreign References:
| RU2129762C1 | 1999-04-27 | |||
| SU1809938A3 |
Other References:
See also references of EP 1193999A4
Attorney, Agent or Firm:
Koltzov, Igor Leonidovich (12-2-57 Moscow, 2, RU)
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