Digital projectors are equipments of recent technology. These are used to convert image data from the pc onto a screen via lens system. Digital projectors provide visualization of data which is actually kept in a pc for presentation. These projectors enable the viewers to observe moving images coming from a DVD, digital versatile disc player. Advertisers or sellers also employ these projectors to offer illustration showing products to numerous customers. It may easily convert written documents onto an interactive whiteboard.
Digital projectors play a vital role from the formation of home entertainment system systems. These projectors use resolution of SVGA standard i.e. 800? 600 pixels in expensive devices. Cost of digital projector depends upon its resolution as well as its brightness. 000 to 4,000 ANSI lumens, if you're gonna apply it in large rooms or big conference halls its brightness must be from 1.
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 incapable of produce colors. Nowadays there are many premium quality types of digital projectors can be bought 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)
At the moment 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 may be configured with one RGB color tube which includes three colors blue, red and green 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 when compared with CRT and can be easily shifted from a place to another. These are quite definitely popular and available in various shapes and sizes. CRT and LCD digital projectors come underneath the group of transitive projectors.
Reflective projectors would be the superior digital projectors that provide top quality images. These are typically affordable and offer next phase of entertainment. Everyone is able to enjoy home theater applications with the help of digital projectors.
To learn more about may chieu go to this popular website: here