FR2580286B1 - LIGHT ANECHICAL MATERIAL - Google Patents

LIGHT ANECHICAL MATERIAL

Info

Publication number
FR2580286B1
FR2580286B1 FR8505558A FR8505558A FR2580286B1 FR 2580286 B1 FR2580286 B1 FR 2580286B1 FR 8505558 A FR8505558 A FR 8505558A FR 8505558 A FR8505558 A FR 8505558A FR 2580286 B1 FR2580286 B1 FR 2580286B1
Authority
FR
France
Prior art keywords
anechical
light
light anechical
anechical material
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
FR8505558A
Other languages
French (fr)
Other versions
FR2580286A1 (en
Inventor
Marie-Therese Munier
Christian Voiffray
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.)
Sintra Alcatel SA
Original Assignee
Sintra Alcatel 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
Application filed by Sintra Alcatel SA filed Critical Sintra Alcatel SA
Priority to FR8505558A priority Critical patent/FR2580286B1/en
Publication of FR2580286A1 publication Critical patent/FR2580286A1/en
Application granted granted Critical
Publication of FR2580286B1 publication Critical patent/FR2580286B1/en
Expired legal-status Critical Current

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
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/165—Particles in a matrix

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
FR8505558A 1985-04-12 1985-04-12 LIGHT ANECHICAL MATERIAL Expired FR2580286B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8505558A FR2580286B1 (en) 1985-04-12 1985-04-12 LIGHT ANECHICAL MATERIAL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8505558A FR2580286B1 (en) 1985-04-12 1985-04-12 LIGHT ANECHICAL MATERIAL

Publications (2)

Publication Number Publication Date
FR2580286A1 FR2580286A1 (en) 1986-10-17
FR2580286B1 true FR2580286B1 (en) 1987-05-22

Family

ID=9318187

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8505558A Expired FR2580286B1 (en) 1985-04-12 1985-04-12 LIGHT ANECHICAL MATERIAL

Country Status (1)

Country Link
FR (1) FR2580286B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660787B1 (en) * 1990-04-06 1996-06-21 Technologies Speciales Ingenie ANECHOUID SCREEN.
FR2713428B1 (en) * 1993-12-03 1996-02-09 France Etat Armement Acoustic protection material including sonar antennas.
FR3027827B1 (en) * 2014-11-03 2020-01-31 Imasonic ULTRASONIC TRANSDUCER WITH MICROBALLOON LAYER

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517468A (en) * 1968-07-22 1970-06-30 John Thomas Woods Audiometric enclosure
US3515910A (en) * 1968-11-12 1970-06-02 Us Navy Acoustic absorbing material
DE2541492C3 (en) * 1975-09-17 1980-10-09 Siemens Ag, 1000 Berlin Und 8000 Muenchen Ultrasonic transducer
DE3069525D1 (en) * 1979-12-17 1984-11-29 Philips Corp Curved array of sequenced ultrasound transducers

Also Published As

Publication number Publication date
FR2580286A1 (en) 1986-10-17

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Legal Events

Date Code Title Description
CL Concession to grant licenses
ST Notification of lapse