Balopticon definition


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2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Projector \Pro*ject"or\, n. [Cf. F. projeteur.]
     1. One who projects a scheme or design; hence, one who forms
        fanciful or chimerical schemes. --L'Estrange.
        [1913 Webster]
     2. an optical instrument which projects an image from a

        transparency or an opaque image onto a projection screen
        or other surface, using an intense light and one or more
        lenses to focus the image. The term projector by itself is
        usually used for projection of transparent images by
        passing the light beam through the image; a projector
        which projects an image of an opaque object is now
        ususally referred to as an {overhead projector}. In
        projection of this latter form the projection is
        accomplished by means of a combination of lenses with a
        prism and a mirror or reflector. Specific instruments have
        been called by different names, such as {balopticon},
        {radiopticon}, {radiopticon}, {mirrorscope}, etc.
        [Webster 1913 Suppl. +PJC]
     {Slide projector} a projector for displaying images from
        individual transparencies (slides), each mounted in a
        separate frame suited to the mechanics of the projector.
     {movie projector} a projector which displays a series of
        images from a roll of transparent film in rapid sucession,
        thus giving the impression of showing a scene with motion
        as it originally was recorded.
     {overhead projector} see {projector[2]}, above. -->

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Balopticon \Bal*op"ti*con\, n. [Gr. balei^n to throw +
     See {Projector}, below.
     [Webster 1913 Suppl.]

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