What is Video projector?
[[File:Projection-screen-home2.jpg|thumb|200px|Projected image from a video projector in a [[home cinema]].]] A '''video projector''' takes a [[video]] [[signal]] and projects the corresponding image on a [[screen]] using a [[Lens (optics)|lens]] system. All video projectors use a very bright light to project the image, and most modern ones can correct any curves, blurriness, and other inconsistencies through manual settings. Video projectors are widely used for conference room [[presentation]]s, classroom training, and [[home theatre]] applications. A video projector may also be built into a cabinet with a rear-projection screen to form a single unified display device, now popular for “home theater” applications. Common [[display resolution]]s for a portable projector include SVGA (800×600 [[pixel]]s), XGA (1024×768 pixels), and 720p (1280×720 pixels). The cost of a device is not only determined by its resolution, but also by its light output, acoustic noise output, contrast, and other characteristics. == Obsolete technologies == * Eidophor oil-film projectors * Telaria oil-film projectors * ILA (Image Light Amplifier) light valves. == Major manufacturers == * [[Hewlett-Packard]] * [[Sharp Corporation|Sharp]] * [[Sony]] == References == * [http://www.saveonprojectors.com/lcddlp.aspx LCD VS. DLP in Projectors] {{Webarchive|url=https://web.archive.org/web/20070218052518/http://www.saveonprojectors.com/lcddlp.aspx |date=2007-02-18 }} SaveOnProjectors.com <references/> {{tech-stub}} [[Category:Machines]] [[Category:Output devices]]