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The Bomaker Polaris 4K projector: my hands-on review Confession time: I realized my home-theater dream last year with a UST projector from Vava. It's been pretty great, but I was eager to see how ...
A theater can purchase a film projector for as little as $10,000 [69] (though projectors intended for commercial cinemas cost two to three times that; to which must be added the cost of a long-play system, which also costs around $10,000, making a total of around $30,000–$40,000) from which they could expect an average life of 30–40 years.
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. Modern movie projectors are specially built video projectors (see also digital cinema).
An LCD projector is a type of video projector for displaying video, images or computer data on a screen or other flat surface. It is a modern equivalent of the slide projector or overhead 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 .
requires skilled convergence calibration and adjustments for geographic location changes. [46] Glass display tube is evacuated and carries risk of implosion if improperly handled. May be risky and expensive to repair due to complexity of the display; [ 47 ] units with mercury CCFL backlight lamps are an environmental health hazard [ 48 ]
ViewSonic Corporation is an American privately held multinational electronics company with headquarters in Brea, California, United States.. The company was founded in 1987 as Keypoint Technology Corporation by James Chu and was renamed to its present name in 1993, after a brand name of monitors launched in 1990.
In contrast, a modern LCD or DLP projector often uses an Ultra-high-performance lamp which has a higher luminous efficacy and lasts for thousands of hours. [5] A drawback of that technology is the warm up time required for such lamps. Older overhead projectors used a tubular quartz bulb which was mounted above a bowl-shaped polished reflector.