I've found a place to get glass beads like professional screen use!

[freeupyermind]

I agree i think it would take awhile for it to corrode and if it did, you would just have to redo it, every so often you have to replace your bulb, just another one of those things, but by all means i think it would work great im very interested to see some results if anybody ever gets back to australia and tries it lol

[ace3000_1]

here are some links, wow this stuffs used in paint, wow way to go lol

http://www.applegate.co.uk/engineeri...y/co_31181.htm


http://www.schlenk.de/pigmente/eng/aluflakes.ihtml

http://www.ccohs.ca/oshanswers/chemi...basic_alu.html

thats all for now but u get the idea hey and no home made bombs either this stuff blows

Trev

[ace3000_1]

I agree i think it would take awhile for it to corrode and if it did, you would just have to redo it, every so often you have to replace your bulb, just another one of those things, but by all means i think it would work great im very interested to see some results if anybody ever gets back to australia and tries it lol

lol yeah maybe just a quick cut back every so often might do the trick, car wax i dont think would be good but it sure as hell would make the alloy shiny lol, actually maybe a wet sand with somthing like 2000+ grit sand paper would be enough to keep it flat and to exspose the alloy from the paint.

Trev

[Video Freak]

well let me chime in I have a dalite 2.5 gain( I believe I forget) glass beaded screen and Im un-impressed, sure its brighter( when your directly in front of the screen) otherwise its kinda misty and not the best Im thinking Im gonna get a reg mat white one and do a comparison honestly this is just used with My good ol standbuy panel and 250 HQI Overhead projector But I dont see how this is better then when I was projecting on a mat white window shade. just my thoughts

[Sir_Vival]

I know these are made for reflecting because that is what our county buys them for. They put them on different surfaces to make them reflective.

Lol. That pic looks great.. the bottom light is very bright yet the screen is still bright too. After seeing so many pictures of projected images and live results myself, i can tell what is caused by the camera and what is the actual projected screen lol . I kind of filter out the camera junk in my mind .

What did you mean by this? This is one of the few pictures that actually turned out..so meh. I'm using a digital camera with no brightness settings or anything. That's a whole room behind there filled with lights, and the screen is in between the two rooms in a large doorway type opening.

Let me put it this way-Before, in Halo, I couldn't see in the shadows one bit. My friends could hide in there and snipe without me seeing at all. Now, you can easily see them. An improvement? Heck yeah.

And about the price...a pound of this stuff is about half of a foldgers coffee can. That's more than enough to experiment with on different surfaces. I just don't have the time or the energy (mono) to do that right now. I think these could help us greatly, if applied in the right way. Unless the guy offers in bulk (I didn't know where to contact him over the weekend) 10 dollars a pound is the best I can do.

[JTB]

I know these are made for reflecting because that is what our county buys them for. They put them on different surfaces to make them reflective.

Reflectivity is not the issue. Any glass bead is going to be reflective to some degree. The issue is whether or not they're any different than bead blasting glassbeads since they cost at least 10 times more per pound.

Video Freak's post is very interesting. It really makes me think that glassbeads probably aren't the way to go.

Here are the links I found during the day today:

Here's the important part from this link: "These beads are ordinarily used as the reflective element in paint used for highway signs. They are also used for bead blasting of machined parts."

So in other words, they are the same.

Military Beads

Here's a link on grit/micron size: http://www.unc.edu/~rowlett/units/scales/grit.html

The other links I found are basically the same.

The Eastwood beads are 70-100 grit which makes them 122 - 203 microns in size. The Dalite website says they use 9 micron beads!

"The surface of High Power™ is comprised of a huge number of tiny glass beads distributed evenly across a white vinyl field. In constructing this surface Da-Lite has found a way to get the diameter of the average bead reduced to about 9 microns. This is better than a conventional glass beaded screen by a factor of 7 since their typical bead diameter is about 65µ."

But as I said in an earlier post, we're still talking about very tiny particles.

I think the other information I found today is possibly the best way to go. I've got a sample of the product coming and if it's any good, I'll let everyone know. For now, I'm staying away from glassbeaded screens.

[Sir_Vival]

Ah, good news here. The guy does offer a discount..if I buy a 50 pound bag. I should be able to offer it for 5 dollars a pound now, maybe a little bit more to compensate for shipping.

[Sir_Vival]

Ok, here are the other pics. Yes, they have been brightened in photoshop, but only to get closer to the real results. My camera doesn't like the dark too much. Also, the pictures are of course less washed out looking..that's from the manual brightening.

[Sir_Vival]

second

[JTB]

Well, I got the samples that I mentioned in an earlier post.

Unfortunately they're about 4" x 2", so they're not very helpful.

This is the stuff I was talking about: http://www.dickblick.com/zz272/12/pr...m=0&ig_id=2797

I did a search for it on these forums and the avs forums and only found 2 posts mentioning it and no posts at all here, so I assume it's a new idea.

Here's the main site: http://cms.3m.com/cms/US/en/2-135/ciikFFL/view.jhtml

The material I have is only 1 type of a variety of available forms that you can get this stuff in. There may be something better.

Anyway, this stuff has billions of little glass bubbles on it that are supposed to reflect light. It's the same stuff they use in reflective paint on the sides of roads or on signs.

The road paint might be the best possible solution for our needs.

The problem with the samples that I have is that they have a shiny surface - besides the glass bubbles - so that as you move around the room, the image on the sample gets brighter and darker and if you're in the right position, there's glare from the glossy surface. Maybe it could be covered with a flat or semi-flat clear coat and still work, but I haven't tried that.

Here's a page with some very interesting pics. Shows you just how reflective this stuff is: http://laser.physics.sunysb.edu/~wis...tin/draft.html