JPS5549099A - Manufacture of electrode plate electret of static type electro-acoustic converter - Google Patents

Manufacture of electrode plate electret of static type electro-acoustic converter

Info

Publication number
JPS5549099A
JPS5549099A JP12290278A JP12290278A JPS5549099A JP S5549099 A JPS5549099 A JP S5549099A JP 12290278 A JP12290278 A JP 12290278A JP 12290278 A JP12290278 A JP 12290278A JP S5549099 A JPS5549099 A JP S5549099A
Authority
JP
Japan
Prior art keywords
film
interposing
polymer film
manufacture
electrode plate
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
JP12290278A
Other languages
Japanese (ja)
Other versions
JPS6057799B2 (en
Inventor
Junichi Tamamura
Yoshiyuki Murakami
Akira Terada
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.)
Hosiden Electronics Co Ltd
Original Assignee
Hosiden Electronics 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 Hosiden Electronics Co Ltd filed Critical Hosiden Electronics Co Ltd
Priority to JP12290278A priority Critical patent/JPS6057799B2/en
Publication of JPS5549099A publication Critical patent/JPS5549099A/en
Publication of JPS6057799B2 publication Critical patent/JPS6057799B2/en
Expired 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 polarize a polarizing polymer film in a simple manufacturing process by interposing a polymer film with a low melting point between the polarizing polymer film and conductive film and then by thermally depositing it at a low temperature. CONSTITUTION:From supply bobbin 27 wound with polarizing polymer film 14, film 14 is fed to heat roller 26 through guide roller 29-1 and at the same time, interposing polymer film 20 is also supplied from supply bobbin 28 to heat roller 26 through guide roller 29-2. Then, film 14 and interposing film 20 are stacked and the lamination body 32 sandwiched between rollers 26 is sent into heating furnace 25 at a fixed speed. The temperature in this heating furnace 25 is set within the thermal bonding temperature range of interposing film 20 and film 14 is bonded to conductive film 15 through interposing film 20. Between conductive film 15 and film 14 of lamination body 32 after the thermal bonding process, corona discharge by direct-current voltage 31 is caused through needle electrode 30 at their center for polarization film 14.
JP12290278A 1978-10-05 1978-10-05 Manufacturing method of electrode plate electret for electrostatic electroacoustic transducer Expired JPS6057799B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12290278A JPS6057799B2 (en) 1978-10-05 1978-10-05 Manufacturing method of electrode plate electret for electrostatic electroacoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12290278A JPS6057799B2 (en) 1978-10-05 1978-10-05 Manufacturing method of electrode plate electret for electrostatic electroacoustic transducer

Publications (2)

Publication Number Publication Date
JPS5549099A true JPS5549099A (en) 1980-04-08
JPS6057799B2 JPS6057799B2 (en) 1985-12-17

Family

ID=14847437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12290278A Expired JPS6057799B2 (en) 1978-10-05 1978-10-05 Manufacturing method of electrode plate electret for electrostatic electroacoustic transducer

Country Status (1)

Country Link
JP (1) JPS6057799B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100753450B1 (en) 2006-05-26 2007-08-30 테라닉스(주) Corona charging unit of electret and method thereof
JP2008172413A (en) * 2007-01-10 2008-07-24 Audio Technica Corp Method of manufacturing electret condenser microphone unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100753450B1 (en) 2006-05-26 2007-08-30 테라닉스(주) Corona charging unit of electret and method thereof
JP2008172413A (en) * 2007-01-10 2008-07-24 Audio Technica Corp Method of manufacturing electret condenser microphone unit

Also Published As

Publication number Publication date
JPS6057799B2 (en) 1985-12-17

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