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Epson owns the technology and has branded it as "3LCD". To market 3LCD projector technology, Epson also set up a consortium called the "3LCD Group" in 2005 with other projector manufacturer licensees of 3LCD technology that use it in their projector models. Early LCD systems were used with existing overhead projectors.
Scan rate ANSI lumens Peak lumens Convergence Layout Notes Videobeam 1000 : Advent: 1973 [1] 6 inches: LightGuide: No : 480i : 50 [2] Analogue: Schmidt optics, with fixed curved aluminium coated screen. Approximately 500 were produced and sold in the Boston area [3] Videobeam 1000A : Advent: 1975 [4] 9 inches: LightGuide: No : 480i : 50 [5 ...
Acer projector, 2012 DLP type home theatre projector in use. A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen.
A Zenith 1200 CRT Projector based home theater. Visible extending from the ceiling are three lenses, one each for red, green and blue Black and white CRT projector. A CRT projector is a video projector that uses a small, high-brightness cathode-ray tube (CRT) as the image generating element.
So, while the eye is moving, it sees a frame of a specific color (red, for example). Then, when the next color is displayed (green, for example), although it gets displayed at the same location overlapping the previous color, the eye has moved toward the object's next frame target. Thus, the eye sees that specific frame color slightly shifted.
Scan angle is the optical angle that a set of scanners normally achieves at a given rate of points per second. The wider the angle, the larger the area the scan covers—but the more difficult it is for the scanner accurately track its movement due to physical limitations of the scanner mechanism.
Overhead projector in operation during a classroom lesson. 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.
A 1960 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.