Acoustic imaging apparatus

Details Acoustic imaging apparatus Acoustic imaging apparatus

1974-02-12

1977-02-01

Wilbur, Maynard R.

Communications: electrical

Selective

Having electron beam device

340 5MP, 340 5H, 73 675H, H04B 1100

Patent

active

040064441

ABSTRACT:
Acoustic imaging apparatus wherein a beam of high frequency acoustic energy is directed to the object to be imaged to create variations in the transmitted acoustic energy which variations are then detected by a plurality of small particles suspended in the beam path for motion in response to radiation pressure produced by the incident acoustic energy, thus providing a visible image with high contrast sensitivity and excellent image resolution.

REFERENCES:
patent: 2644890 (1953-07-01), Hollihan
patent: 3137837 (1964-06-01), Wreford
patent: 3168659 (1965-02-01), Bayre et al.
patent: 3400363 (1975-02-01), Silverman
patent: 3559115 (1968-02-01), De Vries
patent: 3576521 (1971-04-01), Silverman
patent: 3585847 (1971-06-01), Brenden
patent: 3586859 (1971-06-01), Katz et al.
patent: 3663813 (1972-05-01), Shaw
patent: 3812454 (1974-05-01), Bhuta et al.

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