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A machine for projecting the images of opaque objects or transparencies on a screen.


(General Physics) an optical device for projecting a magnified image onto a screen. See also episcope


(ˌɛp ɪˈdaɪ əˌskoʊp)

a type of magic lantern that projects the image of an opaque object onto a screen.
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Noun1.epidiascope - an optical projector that gives images of both transparent and opaque objects
projector - an optical instrument that projects an enlarged image onto a screen
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References in periodicals archive ?
Because they must project the reflected light epidiascopes need brighter bulbs and larger lenses than overhead projectors
Epidiascopes have been used as artists' enlargement tools, to allow images to be transferred to surfaces such as prepared canvas, or for lectures and talks.
The epidiascope is a forerunner of the overhead projector.