JPS5525290A - Flat-plate type speaker - Google Patents

Flat-plate type speaker

Info

Publication number
JPS5525290A
JPS5525290A JP9882378A JP9882378A JPS5525290A JP S5525290 A JPS5525290 A JP S5525290A JP 9882378 A JP9882378 A JP 9882378A JP 9882378 A JP9882378 A JP 9882378A JP S5525290 A JPS5525290 A JP S5525290A
Authority
JP
Japan
Prior art keywords
equalizer
diaphragm
range
disturbance
flat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9882378A
Other languages
Japanese (ja)
Other versions
JPS6111520B2 (en
Inventor
Yoshimori Nakagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP9882378A priority Critical patent/JPS5525290A/en
Publication of JPS5525290A publication Critical patent/JPS5525290A/en
Publication of JPS6111520B2 publication Critical patent/JPS6111520B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To eliminate the disturbance of the frequency characteristics caused by the cavity effect and then to prevent lowering of the sound pressure level at the high range by installing an equalizer in front of the diaphragm and then selecting the opposite area ratio between the diaphragm and the equalizer to the fixed range. CONSTITUTION:Rectangular equalizer 13 is attached at the front of diaphragm 1 in parallel and with a fixed space, and formed into one body with support ring 16 at its outer circumference via four pieces of rib 15 to be attached at the front of frame 3 via ring 16. At the same time, equalizer 13 is formed into a body with the die casting of Al, Zn and others. And the area ratio between opposite surfaces 13a and 1a of equalizer 13 and diaphragm 1 each is selected within the range of 1:2/3- 2/7 in terms of the diaphragm-to-equalizer relation. At a result, the disturbance of the frequency characteristics caused by the cavity effect can be eliminated, preventing, lowering of the sound pressure level at the high range.
JP9882378A 1978-08-14 1978-08-14 Flat-plate type speaker Granted JPS5525290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9882378A JPS5525290A (en) 1978-08-14 1978-08-14 Flat-plate type speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9882378A JPS5525290A (en) 1978-08-14 1978-08-14 Flat-plate type speaker

Publications (2)

Publication Number Publication Date
JPS5525290A true JPS5525290A (en) 1980-02-22
JPS6111520B2 JPS6111520B2 (en) 1986-04-03

Family

ID=14230012

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9882378A Granted JPS5525290A (en) 1978-08-14 1978-08-14 Flat-plate type speaker

Country Status (1)

Country Link
JP (1) JPS5525290A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58107793A (en) * 1981-12-22 1983-06-27 Matsushita Electric Ind Co Ltd Flat plate speaker

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62150357U (en) * 1986-03-13 1987-09-24
TW498698B (en) * 2000-05-08 2002-08-11 Koninkl Philips Electronics Nv Loudspeaker having an acoustic panel and an electrical driver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58107793A (en) * 1981-12-22 1983-06-27 Matsushita Electric Ind Co Ltd Flat plate speaker
JPH0325999B2 (en) * 1981-12-22 1991-04-09 Matsushita Electric Ind Co Ltd

Also Published As

Publication number Publication date
JPS6111520B2 (en) 1986-04-03

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