Infrared radiation sensitive image pick-up device

Details Infrared radiation sensitive image pick-up device Infrared radiation sensitive image pick-up device

1977-05-04

1978-09-26

Willis, Davis L.

Radiant energy

Infrared-to-visible imaging

250338, H01J 3149

Patent

active

041173287

ABSTRACT:
An infra-red imaging device consisting of two sheets of interconnected disks of piezoelectric material, at least one of which has a ferroelectric transition temperature. A metal foil is provided between the sheets and mutually parallel, conductive strips are provided on both outer surfaces of the assembly thus formed, the direction of the strips on the one surface differing from that of the strips on the other surface. A generator for periodic signals which can be sequentially connected to each strip on one of the surfaces of the first sheet generates therein, via a piezoelectric effect, ultrasonic vibrations which are intercepted by the other sheet which converts these vibrations into electric signals. These signals are amplified and carry the image to be examined.

REFERENCES:
patent: 3772518 (1973-11-01), Murayama et al.
patent: 3946264 (1976-03-01), Crowell

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