Mixed polarization imaging system for three-dimensional projection and corresponding methods

摘要

An imaging system (300) configured to reduce perceived flicker in three-dimensional images is provided. The imaging system (300) can include a plurality of light sources (305,306,307), a light combiner (302), a light modulator (303) and a polarization rotator (301). The light combiner (302) combines light received from each of the light sources into a combined beam (304). A first light portion (313) in the combined beam has a first light portion polarization state that is different from a second light portion polarization state of a second light portion (314). The light modulator (303) produces images by modulating the combined beam (304) along a projection surface (316). The polarization rotator (301) selectively rotates a polarization state of the combined beam (304) in synchrony with an image refresh cycle of the imaging system. A circular polarizer (1004) can be used to transform linear polarization states to circular polarization states.

主权项

1. An imaging system configured to display three-dimensional images, comprising:
a plurality of light sources; a light combiner configured to combine light received from each of the plurality of light sources into a combined beam, wherein a first light portion in the combined beam has a first light portion polarization state that is substantially orthogonal relative to a second light portion polarization state of a second light portion of the combined beam; a light modulator configured to produce the three-dimensional images with the combined beam by modulating the combined beam along a projection surface; and a polarization rotator disposed in an optical path of the imaging system that is configured to selectively rotate a polarization state of the combined beam having the first light portion polarization state and the second light portion polarization state in synchrony with an image refresh cycle of the imaging system.