A projector screen is a large screen onto that your moving image (video) or still image is projected. The gear consists of a screen along with a support structure. The device is used to display enlarged images to the audience. These projection screens are trusted in movie halls and conference rooms. The screens found in movie theaters are permanently installed screen. Further, the screens installed in conference rooms are semi-permanent or mobile screens.
Projector screens may be curved or flat screened. Curved or straight screens can be utilized depending on the desired geometrical accuracy, viewing angles and optics employed for projection. They are either erected vertically or held on the wall. Curved projection screens are widely positioned in cinema halls.
The surfaces of such image displaying equipment are often pure white, off-white or Grey in color in order to avoid any discoloration. The brightness of monitor depends on a variety of variables, such as luminous power from the image source and the ambient light level.
Today, the market industry offers a wide range of projector screens, for example:
Front projector screens: These are just about the most commonly used projection equipment. These units are manufactured from vinyl. These equipment are usually light Grey or white colored. These screens have opaque surfaces, which do not allow light to feed them. These high-reflective items are an ideal choice for displaying both still images and movies. These image displaying devices are very flexible, light, durable, portable and cost-effective.
Rear Projection Screens: These image displaying equipment are manufactured from materials, which allow light to pass through them. These devices usually have black or light Grey surfaces. With this type of image projecting equipment the projector is put behind the screen instead of its front. Further, space between the screen and projector must be dark. For best image quality these equipment should be used during the night. These equipment are good for outdoor as well as indoor projection.
Manual Projection Screens: These equipment operates just like a window shade. The unit can be pulled down manually and recoiled back. These devices are usually wall mounted. These display equipment can be bought in two versions, tensioned and non-tensioned. The non-tensioned equipment have become inexpensive. These screens are often moved by air-flow, which can cause disturbance. The non-tensioned manual projection equipment are best for indoor use where air flow is limited.
Electric Projector Screens: These equipment have motorized retraction and drop. The screen is dropped and raised with the help of an electric motor. They are operated by making use of remote controls or wired switches. The unit are quite similar to their manual counterparts. The unit are also available in tensioned and non-tensioned versions.
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