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An LCD projector is a type of video projector for displaying ... These lamps also have the ability to produce an extremely large amount of light within a small area ...
Halogen lamp (105 W) for replacement purposes with an E27 screw base A close-up of a halogen lamp capsule A halogen lamp (also called tungsten halogen , quartz-halogen , and quartz iodine lamp) is an incandescent lamp consisting of a tungsten filament sealed in a compact transparent envelope that is filled with a mixture of an inert gas and a ...
Replacement of the lamp in lamp-based units. The life span of an arc lamp averages 2000–5000 hours and the replacement cost for these range from $99 – 350, depending on the brand and model. Newer generations' units use LEDs or lasers which effectively eliminate this issue, although replacement LED chips could potentially be required over ...
The change of gauge is done by swapping some gate components, pad roller assemblies, reel spindles and the lens, and in some cases making minor adjustments to the lamphouse. This procedure can be completed by a competent projectionist in 5–10 minutes, which is a major reason for the DP70's popularity with venues that show 4/35 and 5/70 prints ...
Early RPTVs were essentially CRT projectors with a mirror to project onto a built-in screen. They were heavy, weighing up to 500 pounds. [25] The first RPTVs to not use CRTs were launched in 2002, using DLP, LCD and LcOS technologies, requiring a UHP lamp. UHP lamps used in projectors and RPTVs require periodic replacement, as they dim with use.
Some projectors have a third, mechanically controlled douser that automatically closes when the projector slows down (called a fire shutter or fire douser), to protect the film if the projector stops while the first douser is still open. Dousers protect the film when the lamp is on but the film is not moving, preventing the film from melting ...
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