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Video projectors can have a mechanism similar to local backlight dimming to achieve higher contrast ratios by using 6 DLP chips: 3 for display, and 3 for local dimming. [11] [12] A few camcorders have a built-in projector suitable to make a small projection; a few more powerful "pico projectors" are pocket-sized, and many projectors are portable.
Since 2005, [10] the only remaining manufacturers of the LCDs for LCD projectors are Japanese imaging companies Epson and Sony. 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 ...
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.
Versions were available that could project a 10-foot (3.0 m) picture and could be ceiling mounted. Novabeam Model Two : Kloss: 1982: 6.5 inches: NovaTron: No : Fixed magnet: 200: Vertical configuration, with a periscope like mirror. Projects onto a wall a 5'4" image. Novabeam Model Three [46] Kloss: 1983: 6.5 inches: NovaTron: No : Fixed magnet ...
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.
Eiki was founded in 1953 in Osaka, Japan by four founders (M. Matsuura, S. Yagi, K. Sekino and Y. Minagawa). [1] Initially the focus of the company was producing technology for classroom instruction but later on the company focused more on producing 16 mm movie projectors for other fields.
Slide projector light generation and collimation system: from left to right, mirror / reflector, bulb, condenser lens 1, green-tinted heat-absorbing glass, condenser lens 2; a centrifugal fan, used to cool the bulb, is visible at the top of the picture. A projector has three main optical elements: [3]: 39–40
He used it for his lectures. [2] Around 1872 Henry Morton used an opaque projector in demonstrations for huge audiences, for example in the Philadelphia Opera House which could seat 3500 people. His machine did not use a condenser or reflector, but used an oxyhydrogen lamp close to the object in order to project huge clear images. [3]