A video projector is an image projector that receives a video signal and projects the corresponding image onto a projection screen using a lens system. Video projectors use a very bright ultra-high-performance lamp (a special mercury arc lamp), Xenon arc lamp, metal halide lamp, LED or solid state blue, RB, RGB or fiber-optic lasers to provide the illumination required to project the image. Most modern projectors can correct any curves, blurriness and other inconsistencies through manual settings.
Video projectors are used for many applications such as conference room presentations, classroom training, home cinema, movie theaters, and concerts, having mostly replaced overhead, slide and conventional film projectors. In schools and other educational settings,[1] they are sometimes connected to an interactive whiteboard. In the late 20th century, they became commonplace in home cinema. Although large LCD television screens became quite popular, video projectors are still common among many home theater enthusiasts. In some applications, video projectors have been replaced with large monitors or LED screens,[2] or their replacement has been explored.[3][4][5]
- ^ Charles Proctor (January 18, 2007). "Christmas is a time for taking -- from schools". Los Angeles Times. Retrieved 2010-11-26.
- ^ "Interactive whiteboard projectors fading from classrooms". The Blade. Retrieved 2024-08-01.
- ^ "LG and Odeon Multicines Open World's First 100% LED Cinema with Dolby Atmos in Madrid - Boxoffice". www.boxofficepro.com. 2023-11-27. Retrieved 2024-08-01.
- ^ Giardina, Carolyn (2023-04-15). "LED Screens for Theaters: Is the Buzzy Tech Worth the Cost?". The Hollywood Reporter. Retrieved 2024-08-01.
- ^ "'Word-first' acoustic transparent LED cinema screen debuts". AV Magazine. Retrieved 2024-08-01.