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stereopticon |
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stereopticon (stĕrēŏp`tĭkən), optical projection instrument making multiple use of the magic lantern. The magic lantern uses lenses to throw on a screen a magnified image from a transparent slide or from an opaque object such as a photograph or the page of a book. The stereopticon combines two or three magic lanterns to focus, in the same area of light on the screen or wall, dissolving views or combinations of images.
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