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2. Projection screen - Wikipedia

   en.wikipedia.org/wiki/Projection_screen

   Projection screens may be permanently installed on a wall, as in a movie theater, mounted to or placed in a ceiling using a rollable projection surface that retracts into a casing (these can be motorized or manually operated), painted on a wall, [1] or portable with tripod or floor rising models as in a conference room or other non-dedicated ...

3. BFI IMAX - Wikipedia

   en.wikipedia.org/wiki/BFI_IMAX

   The screen is the largest in Britain (20m high and 26m wide). It has a seating capacity of 500 and a 14,000 Watt digital surround sound system. Although the site is surrounded by traffic and has an underground line just four metres below, the architects and engineers accounted for this in their design and the entire upper structure sits on anti ...

4. Movie projector - Wikipedia

   en.wikipedia.org/wiki/Movie_projector

   Simulation of a spinning zoopraxiscope An early projector and seats from a movie theater. The main precursor to the movie projector was the magic lantern.In its most common setup it had a concave mirror behind a light source to help direct as much light as possible through a painted glass picture slide and a lens, out of the lantern onto a screen.

5. Movie theater - Wikipedia

   en.wikipedia.org/wiki/Movie_theater

   IMAX also refers to a digital cinema format that uses dual 2K resolution projectors and a screen with a 1.90:1 aspect ratio; this system is designed primarily for use in retrofitted multiplexes, using screens significantly smaller than those normally associated with IMAX. [44]

6. Projector - Wikipedia

   en.wikipedia.org/wiki/Projector

   A virtual retinal display, or retinal projector, is a projector that projects an image directly on the retina instead of using an external projection screen. The most common type of projector used today is called a video projector. Video projectors are digital replacements for earlier types of projectors such as slide projectors and overhead ...

7. LCD projector - Wikipedia

   en.wikipedia.org/wiki/LCD_projector

   An LCD projector is a type of video projector for displaying video, images or computer data on a screen or other flat surface. It is a modern equivalent of the slide projector or overhead projector .