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Digital projectors are equipments of recent technology. These are employed to convert image data directly from the pc onto a screen via lens system. Digital projectors provide visualization of information that may be actually held in a pc for presentation. These projectors allow the viewers to look at moving images from your DVD, digital versatile disc player. Advertisers or sellers likewise use these projectors to present demonstration of products to a huge number of customers. It might easily convert written documents onto an interactive whiteboard.

Digital projectors play a vital role inside 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 depends upon its resolution along with its brightness. 000 to 4,000 ANSI lumens, if you’re going to use it in large rooms or big conference halls its brightness needs to be from 1.

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

Following four technologies are utilized in digital projectors:

Intense CRT

LCD projectors using LCD light gates

Texas Instruments’ DLP technology

Eidophor oil-film projectors (obsolete)

Presently 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 that has three colors blue, green and red by using 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 generally bulky thats why these are the best projectors for fixed installations.

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

Reflective projectors are definitely the superior digital projectors that provide good quality images. These are generally affordable and provide next level of entertainment. Everyone is able to enjoy home theatre applications by using digital projectors.

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