Homebrew 3D video projection
February 15, 2013 11:11 PM Subscribe
Can I use polarizing filters with two aligned video projectors to make a 3D image that then can be viewed with Real3d / IMAX polarized eye-glasses?
posted by shipbreaker to Technology (5 answers total) 2 users marked this as a favorite
I have this idea that if I got two polarizing filters to put in front of the light frustums coming out of two video projectors, then wore Real3D or IMAX goggles to view the image, the left eye would only see the light from the left projector and the right eye would only see light from the right projector.
But a friend of mine says that the moment the polarized light hits the wall, the photons will bounce away in every direction when coming off the wall, and no longer be polarized in a way that will let me use the 3D glasses to separate the images.
Is my idea feasible? Maybe not. Then how do 3D video projectors (the kind that cost $3000) work?