image dissector

American  

noun

1. a form of television camera tube in which an electron image produced by a photoemitting surface is focused in the plane of an aperture and deflected past the aperture to achieve scanning.

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Etymology

Origin of image dissector

First recorded in 1930–35

Example Sentences

In 1922, Farnsworth worked with his high school chemistry teacher Justin Tolman on a sketch for a so-called "image dissector" vacuum tube that essentially created the technology for modern television.

From Salon • Sep. 24, 2022