
But how it works movie glasses? Actually, they are not something new. They have been around for a century since the 3D movie starts. Several decades ago when the first 3D film was released, the 3D glasses that have been used. 3D movie is not as popular as today's technology, not so good.

They make use of images anaglyphic consists of two separate images overlapping each other. Each image is slightly tilted to the interests of one of our eye. We can not see the difference in if we see them with the naked eye, then the 3D glasses is an important film. These glasses allow filtering the image, making only one picture to enter one side of the glasses.

Polarized 3D glasses and a red and blue lens filters. Each film polarized lens 3D glasses are polarized in a different way than others, and receive only one picture of two derived from polarized 3D video display. The works of the red and blue lens filters in the same way, except that it uses red and blue lenses.