People have been modding old overhead projectors with LCD screens for as long as universities have been throwing both away (so since early 2000s). Here is a rec

People have been modding old overhead projectors with LCD screens for as long as universities have been throwing both away (so since early 2000s). Here is a recent example[0]. For some reason nobody seems to realise that you can just place a smarphone underneath it and use that. I mean, the principle is the same as this video[1] :P I just got myself an abandoned one - the Karolinska Institute, where I work, is moving, and they are throwing away a lot of crap. I took one of the overhead projectors, stripped out the old 240 Watts lamp + cooling unit (to be replaced with a less energy-draining yet brighter LED panel from the inside. Perhaps even one of those that can be programmed to change colors). [0] https://www.youtube.com/watch?v=gXX2UkucO8w https://www.youtube.com/watch?v=gXX2UkucO8w [1] https://www.youtube.com/watch?v=FKL9_bdtHq0 https://www.youtube.com/watch?v=FKL9_bdtHq0