Digital projectors are equipments of contemporary technology. These are used to convert image data directly from your computer onto a screen via lens system. Digital projectors provide visualization of information which is actually kept in your personal computer for presentation. These projectors encourage the viewers to look at moving images from a DVD, digital versatile disc player. Advertisers or sellers also have these projectors to offer illustration showing products to a lot of customers. It may easily convert written documents onto an interactive whiteboard.
Digital projectors play a crucial role within the formation of home cinema 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. If you're gonna utilize it in large rooms or big conference halls its brightness needs to be from 1,000 to 4,000 ANSI lumens.
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 unable to produce colors. Nowadays there are numerous high quality kinds of digital projectors are available in market so Eidopher projectors are less common.
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)
Presently 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 has three colors green, red and blue by using a single lens, one black & white tube using a rotating color wheel or three RGB color tubes with three lenses. Projectors having cathode ray tubes are generally 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 in one destination to another. These are generally very much available and popular in different sizes and shapes. CRT and LCD digital projectors come underneath the group of transitive projectors.
Reflective projectors are definitely the superior digital projectors that provide high quality images. They are affordable and provide next level of entertainment. Anyone can enjoy home theatre applications with the help of digital projectors.
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