Rear projection screens used in the theatre are made of PVC and the front face of the screen is usually tinted with a dark color to help reduce the reflection of incident light, thus making it possible to combine projections with stage lighting. White screens are also available and in certain cases, front and back projections are used on the same screen.

A problem typical of rear projection is the  tendency of the light to create a hot spot so that the central part of the projection appears much brighter then the edge. This problem can be reduced to a great extent by using long focal lenses, which produce a narrower beam of light, but this is seldom practical as the longer the focal lens the further from the screen the projector must be placed which is usually impossible on a normal stage with limited depth.

High-gain narrow-angle rear-projection screens with a viewing angle of 30O or less are very effective when placed at a distance from the audience, as their high gain enables projection of a sharp image.		Rear projection screens can be used as a plain backdrop which can be lit with color washes by placing cyc lights behind the screen.

Rear Projection Screens module

A broad viewing angle - high image quality in a wider range of seating positions.