The projector screens are the surface used to project images which normally comes with the supporting structure. The foldable projection screens are either rear projection or front projection type, with a former being much common. Depending on different factors, the projector screens are categorized into electric, portable, manual and fixed. Manual screens are easy to roll and are even pretty affordable, whereas electric screen is somehow costly, but roll retracts and out easily. Fixed screens are normally mounted on the wall and suitably dedicated for the home theatre rooms, whereas portable projection screens essentially for the traveling trainers, presentations and also they’re easy to set-up.
The well-known and common projection screen can either be gray or white with grey ones being designed to enhance contrast and also capable of the better absorption of direct ambient light. Nevertheless, choosing among these two should be depended on different factors like type and the contrast of a projector and amount of the light in a room.
There is another type of foldable projection screens which are switchable projection screens. The switching of this projection is between opaque and clear allowing you to turn easily the window to the screen where the images may be viewed in different sides at different angles.
The important characteristic for the foldable projection screens is their gain for this is a reflection factor for the screen and ranges which range between 0.8 and 2.5 or above. Higher screen gain does not essentially mean well-viewing experience as they will have the hot spots where center of a screen is much brighter than sides of a screen. These are a lesser problem than the high gain screens which are curved or retro-reflective. When you position curved projection screen properly and then aligned it correctly to it seat, the whole screen will become the "hot spot" and picture having is uniform brightness.
Projection Screens Buying Guide
A highlight for the projection screen becomes the ability to create a large screen size. If you want to buy a projection screen, the screen size becomes very important thing to note. It is actually true that the size counts when you won't need the home theater which can be overdone its enjoyable use. In the commercial setting, the size becomes less important and much important for the efficient delivery to audience. The good thumb rule is to divide the distance of the furthest viewers by eight to get the recommended height of the screen.
When buying the foldable projection screens, you need to be sure to select screen surface which best suits the projection and the viewing requirements. The choice will greatly depend on the seating arrangements, projector, and on how much you will control an ambient light of a room. Actually, there are different types of screen surfaces with various attributes being designed for accentuating the image being projected. But, for many users highly contrast matte white or matte white can be two surfaces which you can choose. The matte white screens generally are most well-known because of their provision of most perfect color representation and the largest viewing angles. The screens which are high contrast are well-known when being used in the home theaters due to the material which increases the overall contrast because of the dimming image.
Electric screens are normally the high-end projection screens which add the elegance to the mounting location. The electric screens will be tensioned to have smoothest image surface as possible. These screens ascend and descend back into a casing with a flick of the switch or through remote control. Manual screens, when it comes to projection screens, they’re economical for you to choose for the projector screens which stay in a particular location at one time or every time. The well-known application is in a small office or the classroom location. These manual screens are well raised and also lowered by hands while sometimes you can use a rod or pull string to reach the screens mounted in the high locations. They’re available in recessed-ceiling, ceiling, floor, and wall mounted models.
Duration of the screen
When choosing the projection screen to buy you need to consider the duration. A permanent or fixed wall screen consists of the vinyl screen surface which is attached and stretched to the assembled frame many fixed screens normally have similar viewing surface options. Price is normally driven by a style and appearance of a frame which supports and surrounds the screen surface. The fixed projection screens are often used in the Home Theater application and also conference rooms because of the elegant appearance and flawless flat surface view.
Place of mounting
The wall-mounted screens essentially are easily fixed to a wall using optional or provided brackets. Many can be placed level to a wall, or be extended a bit to permit for some spaces behind a screen which will accommodate things like a whiteboard, chalkboard, fireplace, etc. the wall mounted screens can be electric, manual, or fixed. The ceiling mounted screens also are easily fixed to a ceiling using the hooks or bracket system. The second option can be a recessed installation which is available for particular models.
The screen formats
The screen format is known as the proportion or aspect ratio of the height to the width of the particular screen. Essentially, there are various types of the standard formats where you need to choose a format basing on the format of a projector you can use and also the type of material you can display most. Some well-known aspect ratios are NTSC Video 4:3, HDTV 16:9, Slide 1.25:1, and the Square.
The commercial and educational applications
When you want to buy the foldable projection screens, you need to consider its main application either commercial or educational purpose. For the application, the height is required to be about 1/8 from the distance a screen to a last row of the seats. This becomes the case with the text that needs to be read and details of a presentation to be seen clearly. Preferably, first row of the seats is required to be about two screens the heights away. Bottom of a screen is required to be of minimum feet being 4 above the floor of the audience. This will enable those who have seated toward a rear of an audience to see the whole screen.