Originally Posted by The big picture
I also custom made my screen with a unique combination of thin medium grey net fabric and I placed a backlayer of StreetGlo reflective sheeting on the back side of the fabric. It made a sandwich of sorts that used the darker grey cloth as the ambient light reflector but through the cloth there was streetglo material that is way to reflective to use alone, but in this combination, I was lucky and came up with what might be the only pro-active movie screen.
Do a AVS Search on "Light Fusion". The use of a painted mirrored backing has been around fer a spell, and actually enjoys some degree of official *recognition.
And the idea of using a reflective backing behind a fabric has roots in the use of Mylar, Mirrors, Gloss White, and Flat white backings since 2002.
On the opposite end of the scale, the use of a "light" surface with a darker backing is/has also been employed.
All of those can be loosely construed as being "pro-active" in that they do so much more with the light they receive that just passively reflect it from one surface.
But all in all it's all still "passive" because nothing new is created....just redirected or changed. And since that change always involves winding up with the same or a lessor amount of energy, it's is/has to be considered as being passive.
Ya half to be careful around here not to make the mistake of every saying your Screen is "Active". The Boogeymen are lying out there...waiting to spring!
It has full rich and deep contrast thanks to the grey surface color but the projector does project through the thin cloth.. somewhat like tee-shirt material. and behind there is the streetglo reflective sheeting and it fires back a pretty bright reflection back through the cloth. In this case blacks look black and whites don't look like grey/whites but are actually quite brilliant. Like I said it was pure luck on my part but everyone that has visited me that has a projector can't believe the image Im getting. It looks deep and rich. Streetglo doesn't sell the sheeting normally but you can get it by contacting them
Pure luck, eh? What made you decide on trying that course? There's been a awful lot of discussion about "Light Fusion" on Forums all around the Planet since 2004. Could have been the result of some not too subtle subliminal messaging.
On very cardinal rule in respect to DIY Screens is that seldom is there anything really New under the Sun. AVS has been home to some very forward thinkers, some of which have been/were instrumental in creating the standards and the basis for ideas and concepts we now have accomplished....but they were/have been at it since the 1990s.
Those guys HAD
to try to make screens that improved upon what was effectively horrible standards of Projector performance. Bless'em fer it.
What is for certain is that today...we all have the ability and drive to make everything about DIY Screen making all the more better than it ever was previously...and we have the advantage of having much better PJs to help us reach those lofty goals.
In any case, it's always glad to see/read how someone has managed to further the concept by doing. The use of a "Highly Reflective" backing behind a translucent cloth is certainly not well enough known that you cannot hold yourself up for a bit if credit....that's for sure.