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  2. Opaque projector - Wikipedia

    en.wikipedia.org/wiki/Opaque_projector

    The opaque projector, or episcope is a device which displays opaque materials by shining a bright lamp onto the object from above. The episcope must be distinguished from the diascope , which is a projector used for projecting images of transparent objects (such as films), and from the epidiascope , which is capable of projecting images of both ...

  3. Projector - Wikipedia

    en.wikipedia.org/wiki/Projector

    A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a small transparent lens , but some newer types of projectors can project the image directly, by using lasers .

  4. Overhead projector - Wikipedia

    en.wikipedia.org/wiki/Overhead_projector

    The opaque projector, or episcope is a device which displays opaque materials by shining a bright lamp onto the object from above. The episcope must be distinguished from the diascope , which is a projector used for projecting images of transparent objects (such as films or slides), and from the epidiascope , which is capable of projecting ...

  5. Projection screen - Wikipedia

    en.wikipedia.org/wiki/Projection_screen

    Switchable projection screens can be switched between opaque and clear. In the opaque state, projected image on the screen can be viewed from both sides. It is very good for advertising on store windows. Inflatable movie screen. Mobile screens usually use either a pull-down screen on a free stand, or pull up from a weighted base.

  6. Telop - Wikipedia

    en.wikipedia.org/wiki/Telop

    A TELOP (TELevision OPtical Slide Projector) was the trademark name of a multifunction, four-channel "project-all" slide projector developed by the Gray Research & Development Company for television usage, introduced in 1949. [1] It was best remembered in the industry as an opaque slide projector for title cards.

  7. Category:Projectors - Wikipedia

    en.wikipedia.org/wiki/Category:Projectors

    Pages in category "Projectors" The following 37 pages are in this category, out of 37 total. ... Opaque projector; Overhead projector; P. Phantoscope; Philips DP70;

  8. Transparency (projection) - Wikipedia

    en.wikipedia.org/wiki/Transparency_(projection)

    Overhead projector in operation, with a transparency being flashed. A transparency, also known variously as a viewfoil or foil (from the French word "feuille" or sheet), or viewgraph, is a thin sheet of transparent flexible material, typically polyester (historically cellulose acetate), onto which figures can be drawn.

  9. LCD projector - Wikipedia

    en.wikipedia.org/wiki/LCD_projector

    An LCD projector is a type of video projector for displaying video, ... (made opaque controlled by electricity) to block the light. ... Wikipedia® is a registered ...