15" LCD-setup, impossible to get focus
I have build on this projector for a half a year now, I´m using a normal 15" TFT Computer monitor "Philips 150s" with a fresnel-lens and a 13cm (5") objectlens. But I can´t focus the whole picture on the screen, only in the middle, or if I refocus I got sharp picture on the sides, but it´s impossible to get sharp picture in the whole screen. I have tested it without the Lcd-panel, then I got a very sharp OH-picture. It must have something to do with the lcd-monitor or ? Is this just a problem with my "philips tft" ? Is it possible to make a lens that focus the whole area in one point ? The picture below show the lcd setup.
Or see the attach file.
I have build on this projector for a half a year now, I´m using a normal 15" TFT Computer monitor "Philips 150s" with a fresnel-lens and a 13cm (5") objectlens. But I can´t focus the whole picture on the screen, only in the middle, or if I refocus I got sharp picture on the sides, but it´s impossible to get sharp picture in the whole screen. I have tested it without the Lcd-panel, then I got a very sharp OH-picture. It must have something to do with the lcd-monitor or ? Is this just a problem with my "philips tft" ? Is it possible to make a lens that focus the whole area in one point ? The picture below show the lcd setup.
Or see the attach file.
