| I'm not sure about the gain you would achieve, it would depend on the coatings and or screen. I followed the links from Sam and Danrok and found screen materials with all diferent atributes and gains from 1 to 2.8 which were suitible for diferent viewing circumstances. But I did not find any paint on coatings.
I have read the whole thread and have a couple of questions:
1. How big is a 15" LCD screen? just curious as to what dimensions the lighted table on the overhead projector?
2. Once everything is mounted how hard is it to change the bulb in the OHP?
3. You say that on the sheet you could only get an 8' image because after that the image gets 2 dimm, do you think that if you had a proper screen or even just a painted wall that you could expand the image to 10' or more?
4. From your experiance, do you think it would be feasible to build one of these the build a acbinet for it and suspend it from the ceiling? What are the approximat dimensions of your completed unit? |