http://www.pddnet.com/sites/pddnet.c...hy_225x225.jpgSince the 1960s, theatergoers have shelled out for crude 3-D glasses, polarized glasses, and shutter glasses to enhance their viewing experience.
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http://www.pddnet.com/sites/pddnet.c...hy_225x225.jpgSince the 1960s, theatergoers have shelled out for crude 3-D glasses, polarized glasses, and shutter glasses to enhance their viewing experience.