Here I do a brief description of some of the 3D systems available in Cinemas today. I also show the Xpand-3D LCD system in action. Note: the LCD type system I show in this video is commonly used by IMAX 3D systems and required active glasses that have a battery and LCD shutters over each eye. These shutters change as a Infra Red pulse light, invisible to the eye, is flashed into the theatre and picked up by a sensor on the glasses. This is the most portable of the 3D systems available in my experience.
I will do a in depth version of the 3D at a later podcast.