DE1224786B - Membran fuer einen elektroakustischen Wandler - Google Patents

Membran fuer einen elektroakustischen Wandler

Info

Publication number
DE1224786B
DE1224786B DEC27485A DEC0027485A DE1224786B DE 1224786 B DE1224786 B DE 1224786B DE C27485 A DEC27485 A DE C27485A DE C0027485 A DEC0027485 A DE C0027485A DE 1224786 B DE1224786 B DE 1224786B
Authority
DE
Germany
Prior art keywords
membrane
aluminum
anodizing
anodized
diaphragm
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
DEC27485A
Other languages
German (de)
English (en)
Inventor
Joachim Wolff
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.)
Cosmocord Ltd
Original Assignee
Cosmocord 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 Cosmocord Ltd filed Critical Cosmocord Ltd
Publication of DE1224786B publication Critical patent/DE1224786B/de
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
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • 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
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/023—Diaphragms comprising ceramic-like materials, e.g. pure ceramic, glass, boride, nitride, carbide, mica and carbon materials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/027—Diaphragms comprising metallic materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
DEC27485A 1961-07-19 1962-07-18 Membran fuer einen elektroakustischen Wandler Pending DE1224786B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26143/61A GB1002765A (en) 1961-07-19 1961-07-19 Improvements in and relating to electro-acoustic apparatus

Publications (1)

Publication Number Publication Date
DE1224786B true DE1224786B (de) 1966-09-15

Family

ID=10239074

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC27485A Pending DE1224786B (de) 1961-07-19 1962-07-18 Membran fuer einen elektroakustischen Wandler

Country Status (4)

Country Link
US (1) US3152661A (forum.php)
DE (1) DE1224786B (forum.php)
GB (1) GB1002765A (forum.php)
NL (1) NL281021A (forum.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2282203A1 (fr) * 1974-08-12 1976-03-12 Rehde Weber Haut-parleur

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5282374U (forum.php) * 1975-12-16 1977-06-20
TW200746868A (en) * 2006-02-24 2007-12-16 Yamaha Corp Condenser microphone
WO2008085177A1 (en) * 2007-01-12 2008-07-17 Samson Technologies Corporation Speaker motor and speaker
USD783577S1 (en) * 2015-09-16 2017-04-11 Stillwater Designs And Audio, Inc. Subwoofer
DK178943B1 (en) * 2015-11-03 2017-06-19 Fibona Acoustics Aps Loudspeaker membrane and low-profile loudspeaker
EP3166333A1 (en) 2015-11-03 2017-05-10 Fibona Acoustics ApS Loudspeaker membrane and low-profile loudspeaker
JP1602130S (forum.php) * 2017-08-08 2018-04-16
USD881846S1 (en) * 2017-12-06 2020-04-21 Tymphany Acoustic Technology (Huizhou) Co., Ltd. Vibration diaphragm for loudspeaker
USD966235S1 (en) * 2019-08-23 2022-10-11 Tymphany Acoustic Technology Limited Waveguide

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB469445A (en) * 1936-01-21 1937-07-21 Hawley Products Ltd Improvements in cones for loudspeakers
DE677210C (de) * 1937-01-08 1939-06-21 Telefunken Gmbh Formmembran aus Metall
GB596869A (en) * 1945-02-20 1948-01-13 Athol Ernest Neville Lawrance Improvements in or relating to acoustical diaphragms
DE835757C (de) * 1949-10-26 1952-04-03 Klangfilm G M B H Kalottenmembran fuer Trichterlautsprecher
DE900830C (de) * 1934-12-03 1954-01-04 Tobis Tonbild Syndikat G M B H Elektrostatisches Mikrophon mit gespannter und mehrfach unterstuetzter Membran

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1918422A (en) * 1926-06-22 1933-07-18 United Res Corp Sound-reproducing device
US1832608A (en) * 1930-11-12 1931-11-17 Alexander I Abrahams Diaphragm for acoustic devices
US1990066A (en) * 1932-11-15 1935-02-05 Emi Ltd Diaphragm for acoustic devices
FR831589A (fr) * 1937-01-07 1938-09-08 Telefunken Gmbh Perfectionnements aux membranes métalliques pour dispositifs acoustiques
US2531634A (en) * 1945-01-11 1950-11-28 Athol E N Lawrance Acoustical diaphragm with stiffening means
US2663023A (en) * 1949-07-06 1953-12-22 Lawrence R Thorpe Knot form
US2869266A (en) * 1954-10-04 1959-01-20 Turco Products Inc Method for removing metal from the surface of a metal object
US3075895A (en) * 1960-02-15 1963-01-29 Gen Dev Corp Method of preparing plates for electromechanical engraving

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE900830C (de) * 1934-12-03 1954-01-04 Tobis Tonbild Syndikat G M B H Elektrostatisches Mikrophon mit gespannter und mehrfach unterstuetzter Membran
GB469445A (en) * 1936-01-21 1937-07-21 Hawley Products Ltd Improvements in cones for loudspeakers
DE677210C (de) * 1937-01-08 1939-06-21 Telefunken Gmbh Formmembran aus Metall
GB596869A (en) * 1945-02-20 1948-01-13 Athol Ernest Neville Lawrance Improvements in or relating to acoustical diaphragms
DE835757C (de) * 1949-10-26 1952-04-03 Klangfilm G M B H Kalottenmembran fuer Trichterlautsprecher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2282203A1 (fr) * 1974-08-12 1976-03-12 Rehde Weber Haut-parleur

Also Published As

Publication number Publication date
GB1002765A (en) 1965-08-25
NL281021A (forum.php)
US3152661A (en) 1964-10-13

Similar Documents

Publication Publication Date Title
DE2810308C2 (de) Verfahren zum elektrolytischen Körnen von Aluminium
DE1224786B (de) Membran fuer einen elektroakustischen Wandler
DE2251382B2 (de) Verfahren zur Herstellung von aluminiumhaltigen Trägern
DE1144770B (de) Elektroakustischer Wandler
DE1238049B (de) Verfahren zur Herstellung von Offsetdruckplatten aus Aluminium oder Aluminiumlegierungen
DE2749501C3 (de) Mehrschichtmembran für Lautsprecher
DE2328606B2 (de) Verfahren zur kontinuierlichen vorbehandlung von aluminiumband fuer die herstellung lithografischer platten
DE3546548C2 (forum.php)
DE2851745A1 (de) Membran fuer einen elektroakustischen wandler
DE2540434B2 (de) Verfahren zur galvanoplastischen Herstellung einer Siebfolie für einen elektrisch betriebenen Trockenrasierapparat
AT403194B (de) Verfahren zum herstellen eines gleitlagers
DE474790C (de) Verfahren zur elektrolytischen Herstellung von unterteilten grossen Kathoden bzw. mehreren kleinen Kathoden fuer die Metallelektrolyse
DE1188895B (de) Verfahren zur Herstellung eines Verbundwerkstoffes aus Titan und einem Metall der Platingruppe durch Plattieren
DE599169C (de) Koernermikrophon mit senkrecht zur Schallrichtung vom Strom durchflossener Koernerfuellung
AT163574B (de) Korb für Konuslautsprecher und Verfahren zu siener Herstellung
DE1914054C3 (de) Verfahren zur Herstellung eines platten-, folien- oder blattförmigen Trägers aus Aluminium für lithographische Druckplatten
DE3039280A1 (de) Nagelfeile sowie verfahren zur herstellung derselben
DE1817432A1 (de) Lautsprecher
DE2625224C3 (de) Verfahren zum elektrolytischen Aufrauhen von Aluminiumblechen für Elektroden
AT238537B (de) Verfahren zur Herstellung einer Sitzbadewanne sowie nach dem Verfahren hergestellte Badewanne
DE123832C (forum.php)
DE461300C (de) Verfahren zur Herstellung von Metallanoden fuer galvanische Zwecke
AT121005B (de) Elektrode für elektrolytische, filterpressenartige Wasserzersetzer.
DE616132C (de) Verfahren zur Herstellung von aeusserst duennen Membranen aus Celluloid oder anderen Cellulosederivaten, die auf eine Unterlage gebracht und nach dem Erstarren durch Abaetzen der Unterlage ganz oder teilweise von dieser befreit werden
DE507023C (de) Leim fuer Autotypiezwecke