| 摘要 |
A circular polarizing filter, a stereoscopic image projector system using the same, an apparatus for a stereoscopic image projecting system, and a stereoscopic image projecting system using the same are provided to achieve high response speed and polarization rate by constituting a circular polarizing filter by considering peculiar features, to reduce the number of projectors required according to stereoscopic image projection, and to prevent cross-talk between a left image and a right image. A stereoscopic projector system includes one projector applying a left image and a right image in order, a circular polarizing filter(502) arranged at the front end of the projector, and a voltage supply unit supplying voltage to the circular polarizing filter. The circular polarizing filter includes a linear polarizing filter(502a) having a peculiar linear polarizing direction, and two pi LCDs(502b,502c) having + lambda/4 phase difference and - lambda/4 phase difference at the front end of the linear polarizing filter. The voltage supply unit alternately supplies on-voltage and off-voltage to the two pi LCDs. |
