<div dir="ltr">If we are talking about screens for stage projections I have had good results with tobacco cloth, dyed black. It is cheap, works well from front and back, is almost equally bright from any angle. The reason it works well from any angle is becuase of the nature of the fabric. A thin, round thread when illuminated from behind, retransmits...that light through 180 degrees....similarly if lit from the front it reflects that light through 180 degrees.<div><br></div><div>The other effective screens I have used were given to us when a circa 1971 'smart classroom' was being upgraded from rear-projected slides to front projected video. These screens were 6x12 clear highly polished acrylic with a rear projection treatment on one side. When the 'glass' side is towards the audience these screens effectively reflect all ambient light away from the rear projection side. As long as you are careful that the direct reflections from stage lights dump on the floor or into the wings these screens allow for a very brilliant rear-projected image in full stage light...directly behind the actors. One interesting effect, both positive and negative, is that when the house lights are on the audience can see themselves reflected in the screens....but only when the audience is actually lit.</div><div><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>---------------------------------------------------------------------------------<br></div><div>Kim Hartshorn</div><div><br></div><div><br></div></div></div></div></div></div>
</div></div>