Lens system for acoustic transducer array
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United States of America Patent
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-
Jan 7, 1986
Grant Date -
N/A
app pub date -
Dec 20, 1984
filing date -
Dec 20, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A lens system for directing and focussing acoustic energy from an array of acoustic transducers on a small target can be made lightweight, low in absorption and dispersion by incorporating plastic Fresnel lenses with prisms into a monolithic tray of the same plastic with one lens for each transducer.
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