Digital projectors are equipments of contemporary technology. These are employed to convert image data directly from the computer onto a screen via lens system. Digital projectors provide visualization of information that is actually held in your personal computer for presentation. These projectors enable the viewers to watch moving images from your DVD, digital versatile disc player. Advertisers or sellers also use these projectors to present illustration showing products to numerous customers. It could easily convert written documents onto an interactive whiteboard.
Digital projectors play an important role from the formation of home theatre systems. These projectors use resolution of SVGA standard i.e. 800? 600 pixels in expensive devices. Cost of digital projector depends upon its resolution along with its brightness. If you're gonna make use of 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 inside a rotating disk with light shining through it and employed an electron beam to disrupt oil inside a specific manner. Eidophor projectors were not able to produce colors. Nowadays there are several top quality kinds of digital projectors are available 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 the moment LCD projectors use Texas Instruments' DLP technology whereas the top intensity CRT devices are compatible with enduring installations. Entire working of cathode ray tube digital projectors is a lot like CRT television set. These projectors can be configured with one RGB color tube which includes three colors red, green and blue with 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 generally bulky thats why these represent the best projectors for fixed installations.
LCD digital projectors are lighter and portable enough compared to CRT and can be simply shifted from a spot to another. These are typically significantly available and popular in various shapes and sizes. CRT and LCD digital projectors come underneath the group of transitive projectors.
Reflective projectors are definitely the superior digital projectors offering premium quality images. These are generally affordable and provide next stage of entertainment. Anyone can enjoy home theatre applications with the aid of digital projectors.
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