FR2521380B2 - Transducteur acoustique - Google Patents

Transducteur acoustique

Info

Publication number
FR2521380B2
FR2521380B2 FR8202529A FR8202529A FR2521380B2 FR 2521380 B2 FR2521380 B2 FR 2521380B2 FR 8202529 A FR8202529 A FR 8202529A FR 8202529 A FR8202529 A FR 8202529A FR 2521380 B2 FR2521380 B2 FR 2521380B2
Authority
FR
France
Prior art keywords
acoustic transducer
acoustic
transducer
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.)
Expired
Application number
FR8202529A
Other languages
English (en)
Other versions
FR2521380A2 (fr
Inventor
Preston Vincent Murphy
Guy Maurer
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.)
Lectret SA
Original Assignee
Lectret SA
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
Priority claimed from US06/123,719 external-priority patent/US4295010A/en
Application filed by Lectret SA filed Critical Lectret SA
Priority to FR8202529A priority Critical patent/FR2521380B2/fr
Publication of FR2521380A2 publication Critical patent/FR2521380A2/fr
Application granted granted Critical
Publication of FR2521380B2 publication Critical patent/FR2521380B2/fr
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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
FR8202529A 1980-02-22 1982-02-09 Transducteur acoustique Expired FR2521380B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8202529A FR2521380B2 (fr) 1980-02-22 1982-02-09 Transducteur acoustique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/123,719 US4295010A (en) 1980-02-22 1980-02-22 Plural piezoelectric polymer film acoustic transducer
FR8202529A FR2521380B2 (fr) 1980-02-22 1982-02-09 Transducteur acoustique

Publications (2)

Publication Number Publication Date
FR2521380A2 FR2521380A2 (fr) 1983-08-12
FR2521380B2 true FR2521380B2 (fr) 1987-11-27

Family

ID=26222751

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8202529A Expired FR2521380B2 (fr) 1980-02-22 1982-02-09 Transducteur acoustique

Country Status (1)

Country Link
FR (1) FR2521380B2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651633B1 (fr) * 1989-09-01 1992-04-30 Thomson Consumer Electronics Element et dispositifs de transducteurs electroacoustiques a bimorphe de polymere piezoelectrique notamment pour la realisation d'un haut-parleur a diagramme de rayonnement de type lineaire.
JP3565560B2 (ja) * 1994-05-20 2004-09-15 新世株式会社 音発生装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4829420A (fr) * 1971-08-20 1973-04-19
GB1593271A (en) * 1976-09-21 1981-07-15 Standard Telephones Cables Ltd Electro-acoustic transducers
US4295010A (en) * 1980-02-22 1981-10-13 Lectret S.A. Plural piezoelectric polymer film acoustic transducer

Also Published As

Publication number Publication date
FR2521380A2 (fr) 1983-08-12

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