This is some bad ass stuff, we can build some bad ass rear projection tvs.

I want to see if anybody on the forum is interested in this project. I'm trying to buy straight from 3M to get the best price.

Check out this links and videos.

3M website

Video1

Video2

Video3

This stuff is very expensive, but it sure is worth it. The cheapest I found a 60" 16:9 peice is $800. But with me buying straight from 3M, I bet I can get that down to $300, which is well worth it.

I just want some input from you guys.

I know there was ALOT of interest in this stuff, right around the time AG removal was getting popular. Like this thread:
http://www.lumenlab.com/forums/index.php?s...&hl=Vikuiti

EDIT: NOT THE SAME ANIMAL, MY MISTAKE! watch those vids everybody

If you look, that thread was in 2005, this film came out it late 2006. This is rear projection film that you can place on glass or plastic. The film will maintain the projector's contrast ratio, it rejects off axis light behind the screen. Read up on it.

WOW! You were not kidding Johnzo!! that stuff has HUGE potential! Color me interested




There's also got to be some potential applications for the sort of immersive environment stuff Brainchild has been experimenting with.... maybe 3D stuff with multiple projectors too?

WOW that would be great.......... if only its cheaper not everyone is rich, but I'm willing to give it a try if its more affordable.

noob impulse to strong, I cant resist.... any chance of this functioning as a front projection film? ( think huge plexy screen with this on it )

Imagine if it were DIYable..........hint, hint There's gotta be some sort of chemist thingamagger within this forum one way or another.

I'm good for a 65" 16/9 slice if it can be had for around $125.

Did you ever find out the price and size of a roll?

How wide are the rolls?

It looks like the viewing cone is 35deg

Wouldn't we all mate!

There is an acceptance angle for this film, not to be confused with viewing angle, of +- 15°. A standard DIY projector has a beam angle of +-28° @100”screen, +-23° for a 40” screen. For a small RPTV, it’s not going to be in the acceptance angle for this film. As to how much effect on the image this will have, I don’t know. But I would expect the corners to be dim. Their PDF says

DJ

Hi Dazzzla, what difference does the fresnel/lense combination have, if any in this angle calculation?

The beam angle from the projector was calculated with the throw and the screen size => ATan (Screen diagonal / 2 / throw) = beam angle. Just use the focal calc to find the throw of the particular triplet and LCD combination.

To reduce the beam angle to +-15°, a large fresnel could be used just prior to the film. Finding a large fresnel could be a problem though.

DJ

A possible DIY version. Not at the micro scale that 3M makes though.
Start with a sheet of clear film and coat it with a glass spheres, "White Knight" sell a product called "reflect- all" that could be a candidate. Then apply a couple of coats of black paint. After it has dried, the surface could be sanded back so that just the tips of the spheres were exposed. Getting an even amount of sphere exposure could be hard, maybe sand it with a light source behind it.

EDIT:
I’ve had some time to think about this idea, it probably wouldn’t work that well. Getting the spheres to sit level and even would be out of DIY capabilities.
A good thought exercise though.

EDIT2:
I’ve got to stop ending sentences with “though”.

yeah..... anyone know how to get this stuff cheaper? the cost is very high, 60inch cost over 1K.....

To get it cheaper just wait a few years. I'm sure the price will come down as they get more efficient at producing it.