acoustic lens


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a·cous·tic lens

in ultrasonography, a lens used to focus or diverge a sound beam; may be simulated by electronic manipulation of signals.
References in periodicals archive ?
Based on this metasurface, we designed some ultrathin acoustic planar devices, such as planar acoustic axicon, acoustic lens, and acoustic nondiffracting Airy beam generator.
The acoustic lens is used to focus the ultrasound beam at the target distance and usually protects the matching layer because a medical ultrasound transducer without an acoustic lens could directly contact the target [15, 16].
The passive wave modulator is a type of acoustic lens that can alter the transmitted or reflected waves.
Bang and Olufsen also pioneered in a new technology called the acoustic lens, which allows speakers to spread sound across a 180-degree angle, enabling the listener to move about the room and not stay fixed in a sweet spot to maximize listening pleasure.
In comparison, the lateral resolution of AR-PAM can be scaled by varying the acoustic central frequency and the NA of the acoustic lens. Detailed reviews about PAM technologies can be found in two recent publications [2,85].
He ordered B&O's acoustic lens technology- which created a 'sweet spot' for sound throughout the car-for the A8.
It is this structure that forms a visible bulge on the animal's head and researchers say it acts as an adjustable acoustic lens, focusing the sound into a beam and altering the size of that beam.
The built-in centre loudspeaker, the BeoLab 10, utilises Bang & Olufsen Acoustic Lens Technology which disperses sound at a 180-degree angle.
It incorporates Bang & Olufsen's proprietary ICEpower technology and the automatically-operated Acoustic Lens Technology (ALT) motorised tweeter units.
Figure 4 demonstrates a similar model of the distortion of the ultrasound image, when the specimen has defects filled with liquid, for example, water spots, performing a sort of acoustic lens function and causing unwanted ultrasound beam breakage, as in the example.
Already proving popular in the Audi Q7 UK order book, the bespoke Bang & Olufsen Advanced Sound System boasts 14 speakers, unique acoustic lens tweeters and Bang & Olufsen's patented ICEpower digital amplifier technology.
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