DK1072177T3 - Apparat til omfordeling af akustisk energi - Google Patents

Apparat til omfordeling af akustisk energi

Info

Publication number
DK1072177T3
DK1072177T3 DK99919825T DK99919825T DK1072177T3 DK 1072177 T3 DK1072177 T3 DK 1072177T3 DK 99919825 T DK99919825 T DK 99919825T DK 99919825 T DK99919825 T DK 99919825T DK 1072177 T3 DK1072177 T3 DK 1072177T3
Authority
DK
Denmark
Prior art keywords
revolution
line
acoustic energy
angle alpha
elliptical arc
Prior art date
Application number
DK99919825T
Other languages
English (en)
Inventor
Emanuel Lacarrubba
Original Assignee
Bang & Olufsen As
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 Bang & Olufsen As filed Critical Bang & Olufsen As
Application granted granted Critical
Publication of DK1072177T3 publication Critical patent/DK1072177T3/da

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
    • G10K11/20—Reflecting arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means

Landscapes

  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Bridges Or Land Bridges (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Transducers For Ultrasonic Waves (AREA)
DK99919825T 1998-04-13 1999-04-13 Apparat til omfordeling af akustisk energi DK1072177T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/059,226 US6068080A (en) 1998-04-13 1998-04-13 Apparatus for the redistribution of acoustic energy
PCT/US1999/008070 WO1999056512A1 (en) 1998-04-13 1999-04-13 Apparatus for the redistribution of acoustic energy

Publications (1)

Publication Number Publication Date
DK1072177T3 true DK1072177T3 (da) 2008-03-31

Family

ID=22021615

Family Applications (1)

Application Number Title Priority Date Filing Date
DK99919825T DK1072177T3 (da) 1998-04-13 1999-04-13 Apparat til omfordeling af akustisk energi

Country Status (12)

Country Link
US (1) US6068080A (da)
EP (1) EP1072177B1 (da)
JP (1) JP2002513265A (da)
AT (1) ATE385169T1 (da)
AU (1) AU3745699A (da)
CA (1) CA2370229C (da)
DE (1) DE69938040T2 (da)
DK (1) DK1072177T3 (da)
ES (1) ES2300144T3 (da)
HK (1) HK1034854A1 (da)
PT (1) PT1072177E (da)
WO (1) WO1999056512A1 (da)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6435301B1 (en) * 1998-04-13 2002-08-20 Lacarrubba Emanuel Apparatus for the redistriabution of acoustic energy
US6820718B2 (en) * 2002-10-04 2004-11-23 Lacarrubba Emanuel Acoustic reproduction device with improved directional characteristics
WO2005081520A1 (en) 2004-02-20 2005-09-01 Bang & Olufsen A/S Loudspeaker assembly
US7577265B2 (en) * 2004-06-29 2009-08-18 Ira Pazandeh Loudspeaker system providing improved sound presence and frequency response in mid and high frequency ranges
DK1862033T3 (da) * 2005-03-22 2013-05-06 Bloomline Acoustics B V Transducerarrangement der forbedrer naturligheden af lyde
US7604094B2 (en) * 2005-04-14 2009-10-20 Magyari Douglas P Acoustic scatterer
US20070269074A1 (en) * 2006-05-16 2007-11-22 Mitek Corp., Inc. Omni-Directional Speaker Lamp
WO2014035786A2 (en) * 2012-08-31 2014-03-06 Board Of Regents, The University Of Texas System Devices, systems, and methods for non-destructive testing of materials and structures
US9208768B2 (en) 2012-10-26 2015-12-08 Emanuel LaCarrubba Acoustical transverse horn for controlled horizontal and vertical sound dispersion
EP3261359B1 (en) * 2013-10-16 2019-07-24 Bang & Olufsen A/S An apparatus for redistributing acoustic energy

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1716199A (en) * 1926-03-12 1929-06-04 Hofe Christian Von Wave-transmitting apparatus
US2732907A (en) * 1950-01-31 1956-01-31 Sound transducers
US2643727A (en) * 1950-01-31 1953-06-30 Elipson S A Sound transmitting device with an ellipsoidal reflector
GB842810A (en) * 1958-07-09 1960-07-27 Int Computers & Tabulators Ltd Improvements in or relating to apparatus for sensing records
GB973583A (en) * 1962-04-11 1964-10-28 Post Office Improvements in or relating to microwave aerials
US3731991A (en) * 1969-03-03 1973-05-08 United Aircraft Corp Reflecting means for beam control utilizing movable members for adjustment
JPS57200011A (en) * 1981-06-03 1982-12-08 Hitachi Ltd Reflection type imaging optical device
US4425566A (en) * 1981-08-31 1984-01-10 Bell Telephone Laboratories, Incorporated Antenna arrangement for providing a frequency independent field distribution with a small feedhorn
US4421200A (en) * 1981-12-16 1983-12-20 Ferralli Michael W Elliptically shaped transducer enclosure
US4439773A (en) * 1982-01-11 1984-03-27 Bell Telephone Laboratories, Incorporated Compact scanning beam antenna feed arrangement
US4503435A (en) * 1982-02-25 1985-03-05 At&T Bell Laboratories Multibeam antenna arrangement with minimal astigmatism and coma
US4618867A (en) * 1984-06-14 1986-10-21 At&T Bell Laboratories Scanning beam antenna with linear array feed
US4629030A (en) * 1985-04-25 1986-12-16 Ferralli Michael W Phase coherent acoustic transducer
US4836328A (en) * 1987-04-27 1989-06-06 Ferralli Michael W Omnidirectional acoustic transducer
US4858090A (en) * 1987-06-26 1989-08-15 Downs James W Ellipsoidal reflector concentration of energy system
US4844198A (en) * 1988-04-07 1989-07-04 Ferralli Michael W Plane wave focusing lens
GB2248996A (en) * 1990-10-17 1992-04-22 Canon Res Ct Europe Ltd Speaker assembly
DE4236255C2 (de) * 1992-10-27 1994-07-21 Siemens Ag Akustische Linse
US5615176A (en) * 1995-12-20 1997-03-25 Lacarrubba; Emanuel Acoustic reflector
US5616892A (en) * 1996-01-16 1997-04-01 Technology Licensing Company Virtual imaging multiple transducer system

Also Published As

Publication number Publication date
DE69938040D1 (de) 2008-03-13
EP1072177A1 (en) 2001-01-31
ATE385169T1 (de) 2008-02-15
EP1072177B1 (en) 2008-01-23
CA2370229C (en) 2006-11-14
US6068080A (en) 2000-05-30
WO1999056512A1 (en) 1999-11-04
HK1034854A1 (en) 2001-11-02
PT1072177E (pt) 2008-04-07
AU3745699A (en) 1999-11-16
CA2370229A1 (en) 1999-11-04
ES2300144T3 (es) 2008-06-01
JP2002513265A (ja) 2002-05-08
DE69938040T2 (de) 2009-01-15
EP1072177A4 (en) 2006-07-05

Similar Documents

Publication Publication Date Title
DE60104419D1 (de) Doppelreflektierender solarkonzentrator
AU2002212636A8 (en) Directed reflectors and systems utilizing same
AR031070A1 (es) Disposicion de lente optica para refractar la luz que pasa a traves de una lente electroactiva
DE69723772D1 (de) Projektionslinsen mit grossem Verhältnis zwischen dem Brennpunktsabstand von der Linsenrückseite zur Brennweite
DK1072177T3 (da) Apparat til omfordeling af akustisk energi
TNSN08390A1 (en) Device for converting solar energy
ATE395558T1 (de) Beleuchtungsvorrichtung mit einstellbarem scheinwerferstrahl
EP0965789A3 (en) Beam divergence and shape controlling module for projected light
DE60033815D1 (de) Sammelndes und kondensierendes optisches system mit kaskadierten parabolreflektoren
CA2280738A1 (en) Apparatus for generating parallel radiation for curing photosensitive resin
TW349176B (en) Optical system with grating element and image-grabbing device using the optical system
DE60144220D1 (de) Anordnung zur Verteilung von akustischer Energie
ATE498855T1 (de) Abtasteinheit mit rotierenden prismen
WO2004033958A3 (en) Multiple output illumination using reflectors
SE9604648L (sv) Lins med variabel brännvidd
KR970078554A (ko) 프로젝터용 광원장치
AU7010700A (en) Illuminating spotlight projector and lighting installation with offset light source
KR970022395A (ko) 조명광학계
ES2073576T3 (es) Telescopio de espejos.
RU2000133024A (ru) Световое устройство
KR980003151A (ko) 비 구면 집광 렌즈를 사용한 조명계
FR2731063B1 (fr) Lentille pour feu de signalisation
KR940009736A (ko) 투영 노광장치
KR970057662A (ko) 반사경 및 투사 장치
KR970071113A (ko) 문서 촬영용 매크로 렌즈