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2. Projection screen - Wikipedia

   en.wikipedia.org/wiki/Projection_screen

   An overhead projector projecting onto a pull-down screen. Pull-down screens (also known as manual wall screens) are often used in spaces where a permanently installed screen would require too much space. These commonly use painted fabric that is rolled in the screen case when not used, making them less obtrusive when the screen is not in use.

3. 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 ... Breakthroughs occurred elsewhere in new materials and ...

4. Cinerama - Wikipedia

   en.wikipedia.org/wiki/Cinerama

   The Cinerama projection screen, rather than being a continuous surface like most screens, is made of hundreds of individual vertical strips of standard perforated screen material, each about 7 ⁄ 8 inch (~22 millimeters) wide, with each strip angled to face the audience, to prevent light scattered from one end of the deeply curved screen from ...

5. Silver screen - Wikipedia

   en.wikipedia.org/wiki/Silver_screen

   Silver lenticular (vertically ridged) screens, which are made from a tightly woven fabric, either natural, such as silk, or a synthetic fiber, were excellent for use with low-power projector lamp heads and the monochromatic images that were a staple of early projected images.

6. Movie projector - Wikipedia

   en.wikipedia.org/wiki/Movie_projector

   35 mm movie projector in operation Bill Hammack explains how a film projector works. A movie projector (or film projector) is an opto-mechanical device for displaying motion picture film by projecting it onto a screen. Most of the optical and mechanical elements, except for the illumination and sound devices, are present in movie cameras.

7. 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 .