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Digital projectors are equipments of contemporary technology. These are employed to convert image data right from the computer onto a screen via lens system. Digital projectors provide visualization of web data that is actually kept in your personal computer for presentation. These projectors allow the viewers to watch moving images from the DVD, digital versatile disc player. Advertisers or sellers also have these projectors to give illustration showing products to a huge number of customers. It might easily convert written documents onto an interactive whiteboard.
Digital projectors play a huge role in the formation of home entertainment system systems. These projectors use resolution of SVGA standard i.e. 800? 600 pixels in expensive devices. Value of digital projector depends on its resolution as well as its brightness. If you’re going to apply it in large rooms or big conference halls its brightness should be from one thousand to 4,000 ANSI lumens.
First digital projectors, Eidophor projectors were introduced in 1950. Eidopher projectors used an oily surface in the rotating disk with light shining through it and employed an electron beam to disrupt oil within a specific manner. Eidophor projectors were unable to produce colors. Nowadays there are several high quality designs of digital projectors can be found in market so Eidopher projectors are more uncommon.
Following four technologies are used in digital projectors:
High intensity CRT
LCD projectors using LCD light gates
Texas Instruments’ DLP technology
Eidophor oil-film projectors (obsolete)
Currently LCD projectors use Texas Instruments’ DLP technology whereas our prime intensity CRT devices are suitable for enduring installations. Entire working of cathode ray tube digital projectors is like CRT television set. These projectors may be configured with one RGB color tube which includes three colors blue, green and red by using a single lens, one black & white tube with a rotating color wheel or three RGB color tubes with three lenses. Projectors having cathode ray tubes are often bulky thats why these are the best projectors for fixed installations.
LCD digital projectors are lighter and portable enough in comparison to CRT and can be simply shifted from one place to another. These are typically greatly available and popular in various shapes and sizes. CRT and LCD digital projectors come beneath the class of transitive projectors.
Reflective projectors will be the superior digital projectors that provide premium quality images. These are generally affordable and present next stage of entertainment. Everyone can enjoy home cinema applications with the help of digital projectors.
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