EP 0112688 A2 19840704 - Multiple beam lens transducer with collimator for sonar systems.
Title (en)
Multiple beam lens transducer with collimator for sonar systems.
Title (de)
Mehrfachbündelwandler mit Linse und Kollimator für Sonarsysteme.
Title (fr)
Transducteur d'un pluralité de faisceaux avec lentille et collimateur pour des systèmes sonars.
Publication
Application
Priority
US 45330382 A 19821227
Abstract (en)
A compact apparatus for transmitting and receiving multiple sonar beams utilises an acoustic lens (25) to direct plane waves incident in desired directions to collimating lenses (32) for presentation in phase to electroacustic transducers (30) having planar surfaces. The electroacoustic transducers (30) emit sound waves which are transformed by the lenses (32) into plane waves emergent in the desired directions.
IPC 1-7
IPC 8 full level
G01S 7/521 (2006.01); G10K 11/30 (2006.01); H04R 1/44 (2006.01)
CPC (source: EP)
G10K 11/30 (2013.01)
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0112688 A2 19840704; EP 0112688 A3 19850403; EP 0112688 B1 19890405; DE 3379557 D1 19890511; ES 528408 A0 19841001; ES 8500543 A1 19841001; JP H0344269 B2 19910705; JP S59120976 A 19840712; NO 161710 B 19890605; NO 161710 C 19890913; NO 834829 L 19840628
DOCDB simple family (application)
EP 83307606 A 19831214; DE 3379557 T 19831214; ES 528408 A 19831226; JP 23412183 A 19831212; NO 834829 A 19831227