television microscope

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television microscope:

see microscopemicroscope,
optical instrument used to increase the apparent size of an object. Simple Microscopes

A magnifying glass, an ordinary double convex lens having a short focal length, is a simple microscope. The reading lens and hand lens are instruments of this type.
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Television Microscope


an instrument in which the image of a small object obtained from a microscope by microprojection is projected onto the photosensitive element of a television camera tube and converted into a sequence of electrical signals. The signals can be used to reproduce an enlarged image on the screen of a kinescope. The television microscope makes it possible to increase or decrease the image brightness and regulate contrast by varying only electrical values in the transmitting circuit. (SeeMICROSCOPE: Types.)

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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