JPS5797295A - Acoustic material - Google Patents

Acoustic material

Info

Publication number
JPS5797295A
JPS5797295A JP17361480A JP17361480A JPS5797295A JP S5797295 A JPS5797295 A JP S5797295A JP 17361480 A JP17361480 A JP 17361480A JP 17361480 A JP17361480 A JP 17361480A JP S5797295 A JPS5797295 A JP S5797295A
Authority
JP
Japan
Prior art keywords
phosphorus
compounds
crucible
base
itself
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
JP17361480A
Other languages
Japanese (ja)
Inventor
Masakata Ugaji
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 JP17361480A priority Critical patent/JPS5797295A/en
Publication of JPS5797295A publication Critical patent/JPS5797295A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction

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 the efficiency of acoustic conversion and fidelity of acoustic conversion, by using a material mainly made of phosphorus itself or phosphorus compounds. CONSTITUTION:Phosphorus itself or compounds is deposited on a base 1 forming a vibration diaphragm plate of a microphone. A phosphorus material (phosphorus compounds) 3 obtained from the fixed phase method is put in a crucible 2, the base 1 is located above the crucible 2, electron beam is radiated to the phosphorus material (phosphorus compounds) 3 in the crucible 2 to vapor-deposite the phosphorus itself or compounds 4 to the base 1. Sputtering or resistance heating evaporation method can be used in place of electron beam evaporating method.
JP17361480A 1980-12-09 1980-12-09 Acoustic material Pending JPS5797295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17361480A JPS5797295A (en) 1980-12-09 1980-12-09 Acoustic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17361480A JPS5797295A (en) 1980-12-09 1980-12-09 Acoustic material

Publications (1)

Publication Number Publication Date
JPS5797295A true JPS5797295A (en) 1982-06-16

Family

ID=15963870

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17361480A Pending JPS5797295A (en) 1980-12-09 1980-12-09 Acoustic material

Country Status (1)

Country Link
JP (1) JPS5797295A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726443A (en) * 1984-10-03 1988-02-23 Sony Corporation and Fujikura Ltd. Diaphragm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726443A (en) * 1984-10-03 1988-02-23 Sony Corporation and Fujikura Ltd. Diaphragm

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