Friday, January 16, 2009

Electric Projector Screens

Electric Projector Screens
By Jennifer Bailey

Electric projector screens have become very common and have captured the screen market throughout the world. One can have all the excitement and enjoyment of a big movie blockbuster at home. They are used in schools and colleges where it is necessary to show videos and films (especially in film schools and institutes) on a regular basis to a large number of people.

The best way to get an idea of the electric projector screens is to have a look at the types of the screens that are available in the present day market. These include:

VMAX Series Electric Screen of Screen ratio 3:4

VMAX Series Electric Screen HDTV of Screen ratio 9:16

Home Series Electric Screen 3:4

Home Series Electric Screen HDTV 9:16

Designer Contour Electrol Screen Standard 3:4

Cosmo Electrol Projector Screen Standard 3:4

Designer Contour Electrol HDTV 9:16 Screen

Designer Contour Electrol with Built in Infrared Remote 3:4

Cosmo Electrol Projector Screen HDTV 9:16

Contour Electrol Screen Standard 3:4

Designer Contour Electrol 9:16 with Infrared Remote

Contour Electrol HDTV 9:16 Format Screen

Tensioned Cosmopolitan Electrol 3:4 Standard Format

Tensioned Contour Electrol Screen Standard 3:4

Luxus Model A Electriscreen 3:4

Visionary Electriscreen Standard 3:4

Luxus Model A Electriscreen HDTV 9:16

Visionary Electriscreen HDTV 9:16

Vision XTC Silver Star 3:4 Screen

Vision XMV Silver Star Vertical Masking Screen

Tensioned Director Electrol Screen Standard 3:4

The best electric screens have the following features: they require little effort to open and close compared to other ordinary manual screens, they are ceiling-recessed, and they are available in ascending floor models.

However, electric screens are complicated to install, as these screens require a power source to operate.

Projector Screens provides detailed information on Projector Screens, Video Projector Screens, Home Theater Projector Screens, Electric Projector Screens and more. Projector Screens is affiliated with Large Format Flatbed Scanners.

Article Source: http://EzineArticles.com/?expert=JenniferBailey
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Sunday, January 11, 2009

LCD Projectors

LCD Projectors
By Ken Marlborough

A LCD (Liquid Crystal Display) Projector is the modern version of the slide projector and overhead projector. Unlike CRT (Cathode Ray Tube) projectors, the LCD projector does not function according to the traditional projection-tube system.

The LCD Projector usually contains three separate LCD glass panels - one each for the red, green, and blue components of the video signal. The LCD chip is transparent, and when a powerful light source is passed through it, each individual pixel transforms the light and projects the image or data through a lens onto the screen.

The LCD Projector technological revolution started around the mid-1990s, when manufacturers began to use microdisplays and merge illumination and imaging in one device. Following this development, Compaq introduced one of the first ultra-lightweight data projectors in 2000 - the MP1400 using the DLP (Digital Light Processing) technology from Texas Instruments. Most LCD Projectors today support VGA output at resolutions ranging up to 800x600 and 1024x768. They are also usually capable of projecting standard video from a VCRs, DVDs, and cable boxes; and many of them are specialized for use at home, known as Front-Projection TVs.

The main advantage of the LCD projector is that since the LCD chip is miniature in size, the whole unit is quite compact, which is very practical, especially for mobile professionals. Most LCD projectors are also typically capable of producing 2,000 to 2,500 ANSI lumens brightness with 1024 x 768 VGA resolution, resulting in better image quality. Power consumption is also relatively low. And, in comparison to CRT Projectors (which are still manufactured), LCD versions are quite inexpensive. For example, the Sony VPL-CX1 Superlite LCD Video Projector only costs around $2,000, but is still capable of producing super image quality.

LCD Projectors provides detailed information on LCD Projectors, LCD Projector Rentals, LCD Projector Lamps, LCD Video Projectors and more. LCD Projectors is affiliated with Cheap LCD TVs.

Article Source: http://EzineArticles.com/?expert=KenMarlborough
http://EzineArticles.com/?LCD-Projectors&id=218967