Well I've been using an adhoc OHP and panel setup for a bit now. Ugly as sin but it worked pretty well, corners were dim but everything is wide screen these days!
I no longer have the luxury of the OHP and I have a house to myself so I can create My Own Monstrosity (TM).
I'm using a 15 inch LCD, projecting approximately 4.5metres and I have just about 2.5 metres (diagonally) of projection space.
according to ye olde DIYprojector calculator
http://www.diyprojectorcompany.com/theory/calculator.htm
I should be looking at a 595mm Focal length, so I'm thinking this baby...
http://www.surplusshed.com/pages/item/l3398.html
along with a 550mm fresnel from 3dlens
http://www.3dlens.com/shop/largefresnellens.php
This is just to get me running, I believe I won't get the best quality of projection as it's not a triplet lens, but I don't know an easy solution.
Eventually I'll probably change to a smaller Laptop LCD screen with 1024x768 so it can be slightly portable. But for now would the above ingredients mix into a decent setup you think? plus ballast and a lamp of course.
thanks guys!
I no longer have the luxury of the OHP and I have a house to myself so I can create My Own Monstrosity (TM).
I'm using a 15 inch LCD, projecting approximately 4.5metres and I have just about 2.5 metres (diagonally) of projection space.
according to ye olde DIYprojector calculator
http://www.diyprojectorcompany.com/theory/calculator.htm
I should be looking at a 595mm Focal length, so I'm thinking this baby...
http://www.surplusshed.com/pages/item/l3398.html
along with a 550mm fresnel from 3dlens
http://www.3dlens.com/shop/largefresnellens.php
This is just to get me running, I believe I won't get the best quality of projection as it's not a triplet lens, but I don't know an easy solution.
Eventually I'll probably change to a smaller Laptop LCD screen with 1024x768 so it can be slightly portable. But for now would the above ingredients mix into a decent setup you think? plus ballast and a lamp of course.
thanks guys!