Laser-operated apparatus for data and signal recording

Details Laser-operated apparatus for data and signal recording Laser-operated apparatus for data and signal recording

1977-12-02

1980-05-06

Sikes, William L.

H04N 584

Patent

active

042014557

ABSTRACT:
A laser-operated apparatus for data and signaling recording makes use of a laser-beam source whose laser beam is directed at the Bragg angle into a tellurium dioxide monocrystal provided with an array of ultrasonic transducers, each of which is energized independently by at least one amplitude modulated very high frequency carrier. The individual transducer segments generate respective beams within the body of the crystal which, upon emerging, represent individual information channels which are separately controllable to provide the data and information recordal.

REFERENCES:
patent: Re29670 (1978-06-01), Spaulding
patent: 4084182 (1978-04-01), Maiman

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