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    Digital projectors are equipments of modern technology. These are used to convert image data from the computer onto a screen via lens system. Digital projectors provide visualization of data which is actually held in a computer for presentation. These projectors enable the viewers to watch moving images from the DVD, digital versatile disc player. Advertisers or sellers also use these projectors to offer illustration showing products to a lot of customers. It could easily convert written documents onto an interactive whiteboard.

    Digital projectors play a huge role within the formation of home entertainment system systems. These projectors use resolution of SVGA standard i.e. 800? 600 pixels in expensive devices. Price of digital projector is determined by its resolution along with its brightness. If you’re going to utilize it in large rooms or big conference halls its brightness ought to be from one thousand to 4,000 ANSI lumens.

    First, digital projectors, Eidophor projectors were introduced in 1950. Eidopher projectors used an oily surface inside a rotating disk with light shining through it and employed an electron beam to disrupt oil in a specific manner. Eidophor projectors were struggling to produce colors. Nowadays there are numerous top quality kinds of digital projectors can be found in market so Eidopher projectors are less frequent.

    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)

    At present LCD projectors use Texas Instruments’ DLP technology whereas the high intensity CRT devices are suitable for enduring installations. Entire working of cathode ray tube digital projectors is much like CRT television set. These projectors could be configured with one RGB color tube containing three colors blue, red and green with a single lens, one black & white tube by using a rotating color wheel or three RGB color tubes with three lenses. Projectors having cathode ray tubes are usually bulky thats why these are the best projectors for fixed installations.

    LCD digital projectors are lighter and portable enough compared to CRT and can be easily shifted from one destination to another. These are generally greatly popular and available in different sizes and shapes. CRT and LCD digital projectors come within the type of transitive projectors.

    Reflective projectors are definitely the superior digital projectors that offer top quality images. These are affordable and provide next phase of entertainment. Everyone can enjoy home entertainment system applications with the help of digital projectors.

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