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RealD is a global leader in 3D, bringing the most advanced and realistic digital 3D experience to cinemas worldwide.  The projector alternately projects the right-eye frame and left-eye frame, and circularly polarizes these frames, clockwise for the right eye and counterclockwise for the left eye. A push-pull electro-optical modulator called a ZScreen is placed immediately in front of the projector lens to switch polarization. The audience wears disposable circularly polarized glasses to make sure each eye sees only "its own" picture, even if the head is tilted. In RealD Cinema, each frame is projected three times to reduce flicker. |
