BE884069A - Antenne acoustique a lentille geodesique - Google Patents
Antenne acoustique a lentille geodesiqueInfo
- Publication number
- BE884069A BE884069A BE0/201226A BE201226A BE884069A BE 884069 A BE884069 A BE 884069A BE 0/201226 A BE0/201226 A BE 0/201226A BE 201226 A BE201226 A BE 201226A BE 884069 A BE884069 A BE 884069A
- Authority
- BE
- Belgium
- Prior art keywords
- acoustic antenna
- geodesic lens
- geodesic
- lens
- acoustic
- Prior art date
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)
- Aerials With Secondary Devices (AREA)
- Glass Compositions (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7916896A FR2492142A1 (fr) | 1979-06-29 | 1979-06-29 | Antenne acoustique a lentille geodesique |
Publications (1)
Publication Number | Publication Date |
---|---|
BE884069A true BE884069A (fr) | 1983-07-15 |
Family
ID=9227305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE0/201226A BE884069A (fr) | 1979-06-29 | 1980-08-27 | Antenne acoustique a lentille geodesique |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE884069A (fr) |
DE (1) | DE3023998A1 (fr) |
DK (1) | DK278180A (fr) |
FR (1) | FR2492142A1 (fr) |
GB (1) | GB2096869B (fr) |
IT (1) | IT1220967B (fr) |
NL (1) | NL8003776A (fr) |
NO (1) | NO801955L (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1262571A (fr) * | 1986-12-09 | 1989-10-31 | Yung L. Chow | Radome-objectif pour antenne ehf |
EP2024105A2 (fr) | 2006-06-02 | 2009-02-18 | Light Prescriptions Innovators, LLC. | Integrateur de kohler optique a guide d'ondes utilisant des lentilles geodesiques |
CN114639968B (zh) * | 2022-05-19 | 2022-11-15 | 西安海天天线科技股份有限公司 | 介质透镜天线、人工介质透镜及其加工方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3668335A (en) * | 1969-06-17 | 1972-06-06 | Harold N Beveridge | Electrostatic loudspeaker |
US3957134A (en) * | 1974-12-09 | 1976-05-18 | Daniel Donald D | Acoustic refractors |
GB2004170B (en) * | 1977-08-30 | 1982-01-27 | Secr Defence | Acoustic lenses |
-
1979
- 1979-06-29 FR FR7916896A patent/FR2492142A1/fr active Granted
-
1980
- 1980-06-24 IT IT22977/80A patent/IT1220967B/it active
- 1980-06-26 DE DE19803023998 patent/DE3023998A1/de not_active Withdrawn
- 1980-06-26 GB GB8020634A patent/GB2096869B/en not_active Expired
- 1980-06-27 NO NO801955A patent/NO801955L/no unknown
- 1980-06-27 DK DK278180A patent/DK278180A/da not_active Application Discontinuation
- 1980-06-30 NL NL8003776A patent/NL8003776A/nl not_active Application Discontinuation
- 1980-08-27 BE BE0/201226A patent/BE884069A/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2492142B1 (fr) | 1984-12-21 |
NL8003776A (nl) | 1982-09-01 |
FR2492142A1 (fr) | 1982-04-16 |
GB2096869A (en) | 1982-10-20 |
IT8022977A0 (it) | 1980-06-24 |
DE3023998A1 (de) | 1983-11-03 |
DK278180A (da) | 1983-06-23 |
GB2096869B (en) | 1983-04-07 |
IT1220967B (it) | 1990-06-21 |
NO801955L (no) | 1982-04-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: SECRET Effective date: 19840827 |