Digital projectors are equipments of modern technology. These are used to convert image data right from the computer onto a screen via lens system. Digital projectors provide visualization of information that is actually held in a computer for presentation. These projectors enable the viewers to look at moving images coming from a DVD, digital versatile disc player. Advertisers or sellers also employ these projectors to offer demonstration of products to a lot of customers. It might easily convert written documents onto an interactive whiteboard.

Digital projectors play a crucial role inside the formation of home theater systems. These projectors use resolution of SVGA standard i.e. 800? 600 pixels in expensive devices. Value of digital projector depends upon its resolution along with its brightness. 000 to 4,000 ANSI lumens, if you’re gonna 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 in a rotating disk with light shining through it and employed an electron beam to disrupt oil within a specific manner. Eidophor projectors were struggling to produce colors. Nowadays there are many premium quality models of digital projectors can be found in market so Eidopher projectors are less common.

Following four technologies are used 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 a lot like CRT television set. These projectors could be configured with one RGB color tube that has three colors blue, green and red with a single lens, one black & white tube having a rotating color wheel or three RGB color tubes with three lenses. Projectors having cathode ray tubes are usually bulky thats why they are the best projectors for fixed installations.

LCD digital projectors are portable and lighter enough in comparison to CRT and can be easily shifted in one location to another. These are typically significantly popular and available in several styles and sizes. CRT and LCD digital projectors come beneath the group of transitive projectors.

Reflective projectors will be the superior digital projectors offering top quality images. These are generally affordable and give next level of entertainment. Everybody can enjoy home entertainment system applications with the aid of digital projectors.

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