Whats up DIY community and I would like to give thanks to Brainchild for passing along this wonderful info .
I've completed my PJ and let me say I'm very please with the out come of the picture but one thing I can't seem to get in sharp focas is the left and right side
of the screen and I think I found out why, I went to the movies over the weekend to see Diary of a Mad Black Women, no this wasn't my pick but I must say it was a very good movie anyway I was comparing the theaters picture to mine at home and I was saying only real difference was theres was clear from end to end so looking at the screen this is what I found out ,the screen is not totaly flat but curved so I'm thinking that the distance from the projector to the screen should be the same lenght over the entire screen this is way the screen is curved, can anyone comment on this .



1. The red line represent the wall or homemade screens that we project on

2. The black line represent the theaters screen

hmm, thats weird when I goto the movies a lot of times I find the the theatres are usually a little blurry on the sides, I dont think you need to have a curved screen because I was wable to get mine perfectly clear all over, maybe you should try putting your front fresnel a little closer to the lcd, also I think the lens is designed for the difference being it is curved and if what your saying is true, then the LCD should be curved too because the sides of the LCD are further from the projection lens then the center also, but im not an opticts expert so I could be wrong, I think most of the time the screen is curved (ive only really seen them in IMAX) is to give more depth to the picture, it makes it more 3D like if its curved because it appears to float flat

Actually, a curved screen is a great idea. Not only does it correct any blurring at the edges but it also preserves brightness some. Of course, without any way to correct the image, the image height at the sides of the screen would be shorter than at the center. Think an oval with the sides chopped off. It wouldn't be to that degree, but you'd still see it a bit. I say try it and let us know if it's tolerable or not.

a curved screen will not stop the blurry edges caused by the pro lens kit. It is a double image that is being displayed, a curved screen will not fix this. If the lenses were corrected a curved screen would actually be out of focus on the edges, our projectors will display an image that is in focus on a flat wall all the way up to the edges with proper lenses. The standard lens kit should not have blurry edges.