IR imaging with surface wave readout

Details IR imaging with surface wave readout IR imaging with surface wave readout

1976-03-29

1977-06-07

Willis, Davis L.

Radiant energy

Infrared-to-visible imaging

250338, 357 30, H01J 3149

Patent

active

040285480

ABSTRACT:
A device for IR imaging with surface wave readout wherein RF signals are d to interrogate a depletion depth pattern of a doped pyroelectric material, the depletion depth pattern being a function of the IR energy detected. The RF signals set up an acoustic surface wave in a piezoelectric material in close proximity to the pyroelectric material, and the surface wave is modulated by the pattern. The surface wave is readout and used to modulate the intensity of a visual presentation for one line of the presentation, a two-dimensional visual image being obtained by proper sequential tracing.

REFERENCES:
patent: 3808435 (1974-04-01), Bate et al.
patent: 3842274 (1974-10-01), Greene et al.
patent: 3846820 (1974-11-01), Lampe et al.
patent: 3919555 (1975-11-01), Singer

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