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  2. Slide projector - Wikipedia

    en.wikipedia.org/wiki/Slide_projector

    A slide projector is an optical device for projecting enlarged images of photographic slides onto a screen. Many projectors have mechanical arrangements to show a series of slides loaded into a special tray sequentially. 35 mm slide projectors, direct descendants of the larger-format magic lantern, first came into widespread use during the ...

  3. Multi-image - Wikipedia

    en.wikipedia.org/wiki/Multi-image

    Multi-image is the now largely obsolete practice and business of using 35mm slides ( diapositives) projected by single or multiple slide projectors onto one or more screens in synchronization with an audio voice-over or music track. Multi-image productions [1] are also known as multi-image slide presentations, slide shows and diaporamas and are ...

  4. Overhead projector - Wikipedia

    en.wikipedia.org/wiki/Overhead_projector

    An overhead projector (often abbreviated to OHP), like a film or slide projector, uses light to project an enlarged image on a screen, allowing the view of a small document or picture to be shared with a large audience. In the overhead projector, the source of the image is a page-sized sheet of transparent plastic film (also known as "viewfoils ...

  5. Magic lantern - Wikipedia

    en.wikipedia.org/wiki/Magic_lantern

    Magic lantern slide by Carpenter and Westley. The magic lantern, also known by its Latin name lanterna magica, was an early type of image projector that used pictures—paintings, prints, or photographs —on transparent plates (usually made of glass), one or more lenses, and a light source.

  6. Slide show - Wikipedia

    en.wikipedia.org/wiki/Slide_show

    A slide show, or slideshow, is a presentation of a series of still images (slides) on a projection screen or electronic display device, typically in a prearranged sequence. The changes may be automatic and at regular intervals or they may be manually controlled by a presenter or the viewer.

  7. Opera (web browser) - Wikipedia

    en.wikipedia.org/wiki/Opera_(web_browser)

    Opera is a multi-platform web browser developed by its namesake company Opera. [11][12][13] The current edition of the browser is based on Chromium. Opera is available on Windows, macOS, Linux, Android, and iOS (Safari WebKit engine). [14][15] Two mobile versions are still active, called Opera Mobile [16] and Opera Mini. [17][18] Opera also has ...

  8. 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. A virtual retinal display, or retinal ...

  9. Slide cube projector - Wikipedia

    en.wikipedia.org/wiki/Slide_Cube_projector

    The Slide Cube Projector is a slide projector and system, manufactured and marketed by Bell & Howell, which was introduced in 1970 and marketed through the 1980s.The projector derived its name from its transparent cubical plastic slide storage magazine, approximately 5.5 cm (2.2 in) in each dimension (a bit larger than a standard 135 film slide mount), that held 36 to 44 slides, depending on ...