[SML] projection screens/surfaces

[Kim Hartshorn]

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.

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.

---------------------------------------------------------------------------------
Kim Hartshorn
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://theatrical.net/pipermail/stagecraft_theatrical.net/attachments/20150909/275f28d4/attachment.html>