Digital projectors are equipments of contemporary technology. These are widely used to convert image data right from your computer onto a screen via lens system. Digital projectors provide visualization of data that may be actually stored in a computer for presentation. These projectors let the viewers to view moving images coming from a DVD, digital versatile disc player. Advertisers or sellers also have these projectors to give illustration showing products to a huge number of customers. It may easily convert written documents onto an interactive whiteboard.

Digital projectors play a crucial role in the formation of home cinema systems. These projectors use resolution of SVGA standard i.e. 800? 600 pixels in expensive devices. Value of digital projector is determined by its resolution along with its brightness. If you’re likely to use it in large rooms or big conference halls its brightness needs 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 incapable of produce colors. Nowadays there are various top quality types of digital projectors can be found in market so Eidopher projectors are more uncommon.

Following four technologies are employed in digital projectors:

Intense 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 compatible with 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 green, blue and red having 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 usually bulky thats why they are the best projectors for fixed installations.

LCD digital projectors are portable and lighter enough as compared to CRT and can be easily shifted from a destination to another. These are typically greatly popular and available in a variety of styles and sizes. CRT and LCD digital projectors come under the type of transitive projectors.

Reflective projectors are the superior digital projectors offering premium quality images. These are affordable and offer next level of entertainment. Everyone is able to enjoy home theatre applications with the aid of digital projectors.

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