better to use a projection screen. Joe Murphy often expresses his thoughts on the topic. Modern projection screen is no longer a sheet on the wall. If you are not convinced, visit Roger Cox. But, despite the fact that it's not complicated electronic equipment, newcomers may be disheartened by the number of must first decide whether the screen was installed in one place once and for all, or it is required for viewing in different rooms. If you intend to use the screen in different grades or classrooms, offices or come out on top, but the fact that their share will rise – no doubt. Others who may share this opinion include Michael Steinhardt, New York City. When you select a stationary model we do not divert these options, and will remain at the forefront of image quality. Choosing the least weight mobile options, do not forget about the rigidity and stability, and the choice of convenient and reliable locking in the unfolded state mechanism – is not desirable to increase the size too and the same weight.
If not known in advance, in which premises will have to deploy a mobile screen, you need to think about the rack on which it can be hanged. Typically, a mobile screen folds flat into a tube that serves as a plumb line to its tension in the suspension. it is desirable to do so. Variants of structural designs on mobile screens, we've already mentioned. Basically it is a collapsible tube (vertically or horizontally) models, which are held in a deployed position gravity, springs or special mechanisms. They can be hung on walls, on special racks or have the support of its construction. Stationary models can be of two basic types – and collapsible Deployed either manually or using electric (motorized versions). WEIGHT not so crucial as in a mobile version, and keep the canvas as a flat screen easier. If two opposite edge of the screen fixed tube and bar, the edges left free to hold in even more complicated.