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Make sure to add some fans, the LCD/TFT panel doesn't like the heat of a high-power halogen/xenon lamp! OP uses several fans too, to cool down the air around the xenon lamp: http://forum.allinbox.com/aspectgeek/Projetsencours/18/photo...

A friend converted an overhead projector (and a 1080p LCD panel) into a DIY projector, some years ago. His panel turned brown and broke because of too high air temperature.

As even the OP has cooling issues - lesson learned: Better use LED with 1000+ Lumen instead of a halogen/xenon lamp.




It seems OP uses the arc lamp for its almost-point-source qualities. Halfway down the first page he simulates a led source, it will create a less sharp focal point.




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