Ultrasound transmitting configuration

An ultrasound transmitting configuration for transmitting ultrasound, comprising:

• a plurality of ultrasound generating devices for exposing a medium having an acoustic medium impedance and a medium speed of sound to ultrasonic waves, said plurality of ultrasound generating devices having a coupling side, and each of said plurality of ultrasound generating devices including at least two mutually separated ultrasound transducers disposed alongside one another and having an acoustic transducer impedance;
• actuating electrodes for exciting said at least two ultrasound transducers to emit ultrasound;
• an ultrasound lens acoustically coupled to said coupling sides of said plurality of ultrasound generating devices, said ultrasound lens disposed between said plurality of ultrasound generating devices and the medium, and said ultrasound lens having a center, an acoustic lens impedance, a lens speed of sound, and an adjustable depth of focus;
• one of said plurality of ultrasound generating devices being disposed in said center of said ultrasound lens and the others of said plurality of ultrasound generating devices being disposed peripherally around said one in said center;
• said ultrasound transducers directly connecting to said ultrasound lens and extending over a transducer depth toward the medium, extending toward one another over a transducer width, and extending at right angles to said transducer depth as well as to said transducer width over a transducer length, said transducer width being at most as great as said transducer depth, and said transducer length being greater than said transducer depth;
• and
• a common actuating element connected to said plurality of ultrasound generating devices through said ultrasound transducers, said common actuating element adjusting said depth of focus by actuating said one ultrasound generating device in said center or said plurality of ultrasound generating devices.