Then there's 3D, the one with the glasses, usually branded as RealD 3D. These projectors use ... Dolby Digital Cinemas, made by Dolby, can be found at AMC theaters. It uses dual 4K laser projectors.

A pair of passive 3D glasses that use the circular polarized method from RealD Inc., Beverly Hills, CA. RealD glasses are widely used in theaters for 3D movies, and they can also be used for ...

Later on, the technology changed to a clockwise/counterclockwise orientation like the RealD method widely used today. Polarized 3D glasses with two different lens polarizations filter the images ...