Patent ID: 8922722
Filing Date: 2014-12-30
Classification: G02B,G03B,H04N

Abstract:
1. A projection apparatus for providing multiple viewing angle images, comprising: a light source module for sequentially providing a first light beam and a second light beam having a light path different from that of the first light beam; a polarizing light splitting element, having a light incident surface, a first light exiting surface and a second light exiting surface, the light incident surface optically coupling with the light source module, the polarizing light splitting element being used to split the first light beam into a first polarized light beam and a second polarized light beam and to split the second light beam into a third polarized light beam and a fourth polarized light beam, the first polarized light beam and the third polarized light beams being in a first polarized direction, and the second polarized light beam and the fourth polarized light beams being in a second polarized direction; a first reflective light valve, being optically coupled with the first light exiting surface to reflect the first and the third polarized light beams; a second reflective light valve, being optically coupled with the second light exiting surface to reflect the second and the fourth polarized light beams; and a light combining element, being optically coupled with the first and the second reflective light valves to reflect at least a portion of the first and the third polarized light beams that are reflected by the first reflective light valve, and to allow at least a portion of the second and the fourth polarized light beams that are reflected by the second reflective light valve to transmit therethrough; wherein, the projection apparatus further comprise: