POLARIZED GLASSES, POLARIZED FILTER, AND PROJECTOR

摘要

Polarized glasses (100), a polarized filter (200), and a projector (400), applicable in the technical filed of projection. The projector uses the polarized filter on the basis of a predetermined frequency such as 120 frames per second to generate an alternating image signal light. The image frames alternate sequentially. The vibration direction of the light does not change when the alternating image signal light reflects off a projection screen (502) and on the polarized glasses. A viewer can only see a corresponding image via a left lens (101) and a right lens (102) of the polarized glasses (100). The viewer receives alternatively a left-eye frame and a right-eye frame via the polarized glasses, generating a sense of stereoscopic sensation in the nervous system, achieving the goal of viewing a three-dimensional image, thus achieving the goal of viewing the three-dimensional image via the projector.