AT378306B - Verwendung eines gebuendelten laserstrahles zur herstellung eines akustischen reibungswiderstandesfuer elektroakustische wandler - Google Patents

Verwendung eines gebuendelten laserstrahles zur herstellung eines akustischen reibungswiderstandesfuer elektroakustische wandler

Info

Publication number
AT378306B
AT378306B AT0307783A AT307783A AT378306B AT 378306 B AT378306 B AT 378306B AT 0307783 A AT0307783 A AT 0307783A AT 307783 A AT307783 A AT 307783A AT 378306 B AT378306 B AT 378306B
Authority
AT
Austria
Prior art keywords
producing
laser beam
electroacoustic transducers
bundled laser
acoustic friction
Prior art date
Application number
AT0307783A
Other languages
English (en)
Other versions
ATA307783A (de
Inventor
Ewald Dipl Ing Kerschbaum
Hans Dipl Ing Hartmann
Original Assignee
Akg Akustische Kino Geraete
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 Akg Akustische Kino Geraete filed Critical Akg Akustische Kino Geraete
Priority to AT0307783A priority Critical patent/AT378306B/de
Priority to JP59177635A priority patent/JPS6068186A/ja
Priority to US06/644,982 priority patent/US4640382A/en
Priority to DE19843431535 priority patent/DE3431535A1/de
Publication of ATA307783A publication Critical patent/ATA307783A/de
Application granted granted Critical
Publication of AT378306B publication Critical patent/AT378306B/de

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Laser Beam Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
AT0307783A 1983-08-29 1983-08-29 Verwendung eines gebuendelten laserstrahles zur herstellung eines akustischen reibungswiderstandesfuer elektroakustische wandler AT378306B (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT0307783A AT378306B (de) 1983-08-29 1983-08-29 Verwendung eines gebuendelten laserstrahles zur herstellung eines akustischen reibungswiderstandesfuer elektroakustische wandler
JP59177635A JPS6068186A (ja) 1983-08-29 1984-08-28 音響摩擦抵抗の製法
US06/644,982 US4640382A (en) 1983-08-29 1984-08-28 Acoustic frictional resistance construction and method of producing an acoustic frictional resistance using a laser
DE19843431535 DE3431535A1 (de) 1983-08-29 1984-08-28 Verwendung eines gebuendelten laserstrahles zur herstellung eines akustischen reibungswiderstandes fuer elektroakustische wandler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0307783A AT378306B (de) 1983-08-29 1983-08-29 Verwendung eines gebuendelten laserstrahles zur herstellung eines akustischen reibungswiderstandesfuer elektroakustische wandler

Publications (2)

Publication Number Publication Date
ATA307783A ATA307783A (de) 1984-11-15
AT378306B true AT378306B (de) 1985-07-25

Family

ID=3544952

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0307783A AT378306B (de) 1983-08-29 1983-08-29 Verwendung eines gebuendelten laserstrahles zur herstellung eines akustischen reibungswiderstandesfuer elektroakustische wandler

Country Status (4)

Country Link
US (1) US4640382A (de)
JP (1) JPS6068186A (de)
AT (1) AT378306B (de)
DE (1) DE3431535A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0688142A2 (de) 1994-06-16 1995-12-20 AKG Akustische u. Kino-Geräte Gesellschaft m.b.H. Akustischer Widerstand, insbesondere für elektroakustische Wandler
WO2018024647A1 (de) * 2016-08-03 2018-02-08 Christian Politt Verfahren zum herstellen eines akustischen widerstandes und akustischer widerstand

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US5189437A (en) * 1987-09-19 1993-02-23 Xaar Limited Manufacture of nozzles for ink jet printers
US5037183A (en) * 1989-02-22 1991-08-06 United Technologies Corporation Laser drilling
US4970600A (en) * 1989-04-04 1990-11-13 Melco Industries, Inc. Laser engraver with X-Y assembly and cut control
US5262884A (en) * 1991-10-09 1993-11-16 Micro-Optics Technologies, Inc. Optical microphone with vibrating optical element
JPH0759184A (ja) * 1993-03-05 1995-03-03 Matsushita Electric Ind Co Ltd 筐体と音響・映像機器とその製造方法
US5632083A (en) * 1993-08-05 1997-05-27 Hitachi Construction Machinery Co., Ltd. Lead frame fabricating method and lead frame fabricating apparatus
US6932187B2 (en) * 2003-10-14 2005-08-23 Gore Enterprise Holdings, Inc. Protective acoustic cover assembly
DE102004027111B4 (de) * 2004-06-03 2008-01-10 Sennheiser Electronic Gmbh & Co. Kg Akustischer Wandler
JP4188325B2 (ja) * 2005-02-09 2008-11-26 ホシデン株式会社 防塵板内蔵マイクロホン
US7718246B2 (en) * 2006-06-21 2010-05-18 Ben Strauss Honeycomb with a fraction of substantially porous cell walls
WO2014100012A1 (en) 2012-12-20 2014-06-26 The Regents Of The University Of California Electrostatic graphene speaker
DE102014214547A1 (de) * 2014-07-24 2016-01-28 Sennheiser Electronic Gmbh & Co. Kg Verfahren zum Herstellen von akustischen Widerständen
KR101703628B1 (ko) * 2015-09-25 2017-02-07 현대자동차 주식회사 마이크로폰 및 그 제조방법
WO2021060520A1 (ja) * 2019-09-28 2021-04-01 フォスター電機株式会社 電気音響変換器

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656004A (en) * 1947-04-29 1953-10-20 Rca Corp Multisection acoustic filter
NL78163C (de) * 1950-05-11
US2761912A (en) * 1951-05-31 1956-09-04 Martin L Touger Sound translating apparatus
US3419321A (en) * 1966-02-24 1968-12-31 Lear Siegler Inc Laser optical apparatus for cutting holes
US3777079A (en) * 1971-10-21 1973-12-04 Willco Gmbh Directional microphone for head mounted midget hearing aids
US3734234A (en) * 1971-11-08 1973-05-22 Lockheed Aircraft Corp Sound absorption structure
US3930560A (en) * 1974-07-15 1976-01-06 Industrial Research Products, Inc. Damping element
AT337793B (de) * 1975-10-02 1977-07-25 Akg Akustische Kino Geraete Akustischer reibungswiderstand und vorrichtung zu seiner herstellung
US4281670A (en) * 1977-06-13 1981-08-04 Hauni-Werke Korber & Co. Kg Apparatus for increasing the permeability of wrapping material for rod-shaped smokers products
JPS5933075B2 (ja) * 1978-01-30 1984-08-13 株式会社東芝 レ−ザ加工方法および装置
JPS564391A (en) * 1979-06-21 1981-01-17 Toshiba Corp Laser working method
JPS5641088A (en) * 1979-09-12 1981-04-17 Hitachi Ltd Monitoring device for laser light axis
AT366862B (de) * 1980-07-28 1982-05-10 Akg Akustische Kino Geraete Elektroakustischer wandler nach dem zweiwegprinzip
US4458134A (en) * 1982-06-30 1984-07-03 Burroughs Corporation Method and apparatus for drilling holes with a laser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0688142A2 (de) 1994-06-16 1995-12-20 AKG Akustische u. Kino-Geräte Gesellschaft m.b.H. Akustischer Widerstand, insbesondere für elektroakustische Wandler
WO2018024647A1 (de) * 2016-08-03 2018-02-08 Christian Politt Verfahren zum herstellen eines akustischen widerstandes und akustischer widerstand

Also Published As

Publication number Publication date
US4640382A (en) 1987-02-03
DE3431535A1 (de) 1985-03-14
ATA307783A (de) 1984-11-15
JPS6068186A (ja) 1985-04-18

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee