Patent ID: 8177366

Claim:
A stereoscopic image projector system comprising: a projector configured to sequentially emit left and right images of stereoscopic image content; a circular polarization filter module configured to include a left image polarization filter region and a right image polarization filter region, and a light shielding region located between the left image polarization filter region and the right image polarization filter region; a filter driver configured to drive the circular polarization filter module according to timing synchronization of the left and right image emissions of the projector such that the left image polarization filter region is located at an emission hole of the projector when the projector emits the left images of stereoscopic image content and the right image polarization filter region is located at the emission hole of the projector when the projector emits the right images of stereoscopic image content, by rotating the circular polarization filter module; and a sensor configured to detect a boundary between the left image polarization filter region and the right image polarization filter region, wherein a position of the sensor is adjusted according to a size of left and right images emitted by the projector.