GB2004170B - Acoustic lenses - Google Patents

Acoustic lenses

Info

Publication number
GB2004170B
GB2004170B GB7833293A GB7833293A GB2004170B GB 2004170 B GB2004170 B GB 2004170B GB 7833293 A GB7833293 A GB 7833293A GB 7833293 A GB7833293 A GB 7833293A GB 2004170 B GB2004170 B GB 2004170B
Authority
GB
United Kingdom
Prior art keywords
acoustic lenses
lenses
acoustic
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
GB7833293A
Other versions
GB2004170A (en
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.)
Secretary of State for Defence Canada
UK Secretary of State for Defence
Original Assignee
Secretary of State for Defence Canada
UK Secretary of State for Defence
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 Secretary of State for Defence Canada, UK Secretary of State for Defence filed Critical Secretary of State for Defence Canada
Priority to GB7833293A priority Critical patent/GB2004170B/en
Publication of GB2004170A publication Critical patent/GB2004170A/en
Application granted granted Critical
Publication of GB2004170B publication Critical patent/GB2004170B/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
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/30—Sound-focusing or directing, e.g. scanning using refraction, e.g. acoustic lenses

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
GB7833293A 1977-08-30 1978-08-14 Acoustic lenses Expired GB2004170B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7833293A GB2004170B (en) 1977-08-30 1978-08-14 Acoustic lenses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3626477 1977-08-30
GB7833293A GB2004170B (en) 1977-08-30 1978-08-14 Acoustic lenses

Publications (2)

Publication Number Publication Date
GB2004170A GB2004170A (en) 1979-03-21
GB2004170B true GB2004170B (en) 1982-01-27

Family

ID=26263050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7833293A Expired GB2004170B (en) 1977-08-30 1978-08-14 Acoustic lenses

Country Status (1)

Country Link
GB (1) GB2004170B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492142A1 (en) * 1979-06-29 1982-04-16 Thomson Csf ACOUSTIC ANTENNA WITH GEODESIC LENS
JP2618869B2 (en) * 1986-11-15 1997-06-11 株式会社ブリヂストン Noise reduction device
FR2890481B1 (en) * 2005-09-02 2007-12-07 Marc Pierre Marcel Weyant UNICELLULAR CONVERGENT ACOUSTIC LENS
ES2367641B1 (en) * 2010-04-22 2012-10-09 Consejo Superior De Investigaciones Científicas (Csic) THREE-DIMENSIONAL ACOUSTIC LENS.
US8616329B1 (en) * 2012-10-30 2013-12-31 The United States Of America As Represented By The Secretary Of The Air Force Air coupled acoustic aperiodic flat lens
US11682378B2 (en) * 2020-12-16 2023-06-20 Signal Essence, LLC Acoustic lens for safety barriers

Also Published As

Publication number Publication date
GB2004170A (en) 1979-03-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee