Active-to-Passive 3D
http://www.tru3d.com/products/view_product.php?id=34602&Product=TRU3D Polarization Modulator for HDMI 1.4 1080p 3D Projectors
Optoma HD33 with Tru3D
http://www.tru3d.com/products/view_product.php?id=34602&Product=TRU3D Polarization Modulator for HDMI 1.4 1080p 3D Projectors
Optoma HD33 with Tru3D
Tru3D has a solution for you: a converter that turns any 3D projector requiring active shutter glasses into a 3D that only requires cheap passive 3D glasses, plus all the brightness benefits that go along with that.....
http://hdguru.com/tru3d-active-to-passive-3d-polarizer-add-on-review/5926/