Lens assembly for focusing energy
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United States of America Patent
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-
Aug 4, 1992
Issued Date -
N/A
app pub date -
Jul 23, 1991
filing date -
Jul 12, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An acoustical lens for focusing ultrasonic energy having a transducer, a curved focussing lens and a voltage generator coupled with the transducer. The transducer is comprised of an array of piezoelectric crystal elements. The focussing lens has a concave upper surface and a planar bottom surface allowing the array of piezoelectric elements to be coupled to the bottom surface of the array. The piezoelectric elements receive voltage from the voltage generator and transmit an energy ray through the focussing lens producing a focussed energy beam.
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