We use this Panasonic projector. It goes up to 85 Hz, though we usually run it at 60 Hz.
It works well.
You need to buy a non-standard lens to project onto a small screen at a short distance properly, see the "throw distance" calculator:
> We are hoping to accomplish the same thing here in our MEG. We would like to have refresh rates >75Hz with visual stims sent from Matlab using the Psychtoolbox. This is quite difficult with the standard LCD monitor and our LCD projector. Does anyone have a setup for refresh rates of 85Hz? What type of DLP monitors are being used successfully for MEG vision studies?
The white knight is talking backwards.