THERMAL IMAGE CONVERTERS

A thermal image converter comprises a slice of pyroelectric material to act as a reflector for an electron beam. Exposure of one face of the slice to a thermal scene induces a charge distribution over the other face of the slice corresponding to temperature gradients in the thermal scene. The charge...

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Bibliographic Details
Main Author BOOT, HENRY A.H
Format Patent
LanguageEnglish
Published 24.08.1976
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Summary:A thermal image converter comprises a slice of pyroelectric material to act as a reflector for an electron beam. Exposure of one face of the slice to a thermal scene induces a charge distribution over the other face of the slice corresponding to temperature gradients in the thermal scene. The charge distribution modulates and deflects electrons in an incident electron beam which may be viewed by directing the reflected beam onto, for example, a fluorescent screen. A practical construction of sealed-off tube is described.
Bibliography:Application Number: CA19740197402