JPS5685999A - Electrostatic type sound-electricity converter - Google Patents

Electrostatic type sound-electricity converter

Info

Publication number
JPS5685999A
JPS5685999A JP16322379A JP16322379A JPS5685999A JP S5685999 A JPS5685999 A JP S5685999A JP 16322379 A JP16322379 A JP 16322379A JP 16322379 A JP16322379 A JP 16322379A JP S5685999 A JPS5685999 A JP S5685999A
Authority
JP
Japan
Prior art keywords
electret
vibration film
film
constitution
conductive layers
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
JP16322379A
Other languages
Japanese (ja)
Inventor
Shigeru Takiura
Hideki Matsutani
Yoichi Negishi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP16322379A priority Critical patent/JPS5685999A/en
Publication of JPS5685999A publication Critical patent/JPS5685999A/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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

PURPOSE:To raise the effective utilization factor by a simple constitution, by provid ing conductive layers on both surfaces of the vibration film consisting of a high molecular film. CONSTITUTION:The fixed electrode 13 is constituted by laminating an electret on the back plate 11, and the vibration film 14, consisting of a high molecular film is made to oppositely contact with the electret 12 side of this electrode 13. Moreover, on both the surfaces of this vibration film 14 are provided are conductive layers 15, 16. And, this vibration film 14 is stretched on the fixed ring 17 consisting of a conductive material, through the conductive layer 16, and this ring 17 is connected to one end of the primary side winding 181 of the transformer 18. According to such a constitution, the electric charge of the electret 12 is prevented from moving to the vibration film 14, due to the conductive layers 15, 16, and therefore, the effective utilization factor of the electric charge of the electret 12 is raised, and the conversion efficiency of sound-electricity is improved.
JP16322379A 1979-12-15 1979-12-15 Electrostatic type sound-electricity converter Pending JPS5685999A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16322379A JPS5685999A (en) 1979-12-15 1979-12-15 Electrostatic type sound-electricity converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16322379A JPS5685999A (en) 1979-12-15 1979-12-15 Electrostatic type sound-electricity converter

Publications (1)

Publication Number Publication Date
JPS5685999A true JPS5685999A (en) 1981-07-13

Family

ID=15769648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16322379A Pending JPS5685999A (en) 1979-12-15 1979-12-15 Electrostatic type sound-electricity converter

Country Status (1)

Country Link
JP (1) JPS5685999A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106604188A (en) * 2016-12-13 2017-04-26 南京大学 Electrostatic loudspeaker based on silicon thin film materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106604188A (en) * 2016-12-13 2017-04-26 南京大学 Electrostatic loudspeaker based on silicon thin film materials
CN106604188B (en) * 2016-12-13 2019-06-25 南京大学 A kind of electrostatic loudspeaker based on silicon thin film material

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