JPS51140620A - Dome-cone shape vibration plate - Google Patents

Dome-cone shape vibration plate

Info

Publication number
JPS51140620A
JPS51140620A JP50065055A JP6505575A JPS51140620A JP S51140620 A JPS51140620 A JP S51140620A JP 50065055 A JP50065055 A JP 50065055A JP 6505575 A JP6505575 A JP 6505575A JP S51140620 A JPS51140620 A JP S51140620A
Authority
JP
Japan
Prior art keywords
dome
vibration plate
cone shape
shape vibration
alow
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.)
Pending
Application number
JP50065055A
Other languages
Japanese (ja)
Inventor
Yasutake Nishimura
Mitsuhiro Hasegawa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP50065055A priority Critical patent/JPS51140620A/en
Priority to US05/648,306 priority patent/US4058688A/en
Priority to GB1233/76A priority patent/GB1504065A/en
Priority to DE2602128A priority patent/DE2602128C3/en
Priority to CA244,042A priority patent/CA1047943A/en
Priority to FR7601829A priority patent/FR2312908A1/en
Publication of JPS51140620A publication Critical patent/JPS51140620A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/127—Non-planar diaphragms or cones dome-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PURPOSE:To increase compliance of a dome-shaped vibration plate and lower its threshold frequency in alow frequency range.
JP50065055A 1975-05-27 1975-05-29 Dome-cone shape vibration plate Pending JPS51140620A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP50065055A JPS51140620A (en) 1975-05-29 1975-05-29 Dome-cone shape vibration plate
US05/648,306 US4058688A (en) 1975-05-27 1976-01-12 Headphone
GB1233/76A GB1504065A (en) 1975-05-27 1976-01-13 Headphone
DE2602128A DE2602128C3 (en) 1975-05-27 1976-01-21 headphones
CA244,042A CA1047943A (en) 1975-05-27 1976-01-22 Head phone
FR7601829A FR2312908A1 (en) 1975-05-27 1976-01-23 HEADPHONES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50065055A JPS51140620A (en) 1975-05-29 1975-05-29 Dome-cone shape vibration plate

Publications (1)

Publication Number Publication Date
JPS51140620A true JPS51140620A (en) 1976-12-03

Family

ID=13275872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50065055A Pending JPS51140620A (en) 1975-05-27 1975-05-29 Dome-cone shape vibration plate

Country Status (1)

Country Link
JP (1) JPS51140620A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5893092U (en) * 1981-12-17 1983-06-23 三洋電機株式会社 speaker diaphragm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5893092U (en) * 1981-12-17 1983-06-23 三洋電機株式会社 speaker diaphragm

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