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Optical Engineering

Image Converter Shutters
Author(s): George L. Clark
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Paper Abstract

An image converter tube contains a photoemissive surface which emits electrons from each small area in proportion to the intensity of light striking it. The electrons are pulled away from the surface, or photocathode, by an electric field and accelerate through a vacuum to a fluorescent screen. An electron lens may be used to bring together all of the electrons emitted from any point on the photocathode to a corresponding point on the screen, creating an electron image of the light intensity pattern on the photocathode. The phosphor converts the electron energy to light, recreating the original optical image.

Paper Details

Date Published: 1 July 1964
PDF: 2 pages
Opt. Eng. 2(5) 205178 doi: 10.1117/12.7971279
Published in: Optical Engineering Volume 2, Issue 5
Show Author Affiliations
George L. Clark, Electro-Optical Systems, Inc., (United States)

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