Saturday, September 27, 2008

Video Projector Screens

Video-Projector-Screens


Video Projector Screens

By: Jennifer Bailey

A projector is an apparatus for presenting an enlarged image on a screen from a transparency such as a photographic slide or a film. In a motion picture projector, each frame is held stationary at an illuminated aperture for a brief period, and then advanced by an intermittent sprocket or reciprocating claw, the light being cut off by a rotating shutter during the movement. One should have a clear idea about video projectors before buying video projector screens.

Video projectors have become common and captured the market throughout the world. They are especially common in schools and colleges where it becomes necessary to show videos and films (especially in film schools and institutes), or any place where people need to show films on a regular basis at a cheap rate to a large number of people.

There is a wide range of video projector screens available in the market. One can buy the kind of video projector screen one wants depending on the kind of surface. The surfaces vary from smooth to rough, and minutely undulated ones. However, before considering any video projector screens, one should consider the following elements: resolution, brightness or reflectivity, contrast, color accuracy, and build quality.

Some of the white (or gray) video projection screens can bring about a difference in resolution, or image detail. There should be a rating to indicate its inherent reflectivity, on which the brightness of the image depends. Contrast of the image is also dependent to great extent on the video projection screen. A screen should not reflect any color other than that of the projector itself.

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.

Portable Projector Screens

Portable-Projector-Screens


Portable Projector Screens

By: Jennifer Bailey

When there is a projection of a video or an image, the presence of a projector screen is inevitable. A projector screen is a specially made flat screen to be hung on the wall or erected vertically, where the image is reflected, so that the image size is enlarged. The surfaces of such screens are usually rough, and colored white.

There are a number of types of projector screens. They are home cinema projector screens, portable projector screens, manual projector screens, electric projector screens, fixed frame projector screens and also movie board home cinema projection screens.

Home cinema projector screens are the screens with the viewable screen central to the eye. Some of the products that are popular include: CinElpro Electric Projection Screens (230cm), Cinema Electrol Projection Screens (190cm), Diplomat Channel Fix Electric Screens (290cm) and Diplomat Channel Fix Manual Video and Screen Formats (290cm).

Portable projector screens are for temporary positioning or for occasional use. These screens are easy to carry to various places. Most of the screens are foldable and are usually carried in coils. Some of the products that are popular are: Fast fold (427cm), Leader Portable Floor Screens (177cm), Movielux Compact Portable Floor Screens (160cm), Picture King Standard and Video Format Tripod Screens (244cm), and Professional Tripod Screen (240cm).

Manual projector screens can be pulled down and recoiled back from the ceiling, or wall mounted. Some of the products are Proscreen Manual Wall Screens (280cm) and Slim Screen Manual Wall Screens (200cm).

Electric projector screens have motorized drop and retraction through the use of wired switches or remote controls.

Fixed frame projector screens are permanently fixed frame screens. Some of the products are Cinema Contour Professional Framed Projection Screens (488cm) and Designer CineFix Home Cinema Projection Screens (200cm).

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