Patent ID: 8493657
Filing Date: 2013-07-23
Classification: G02B,H04N

Abstract:
1. A light source switching device adapted for a projection system, wherein the projection system is adapted to alternately provide a first light, a second light and a third light, the light source switching device comprising: a first light guiding device, having a first incident surface and a second incident surface, which is not parallel to the first incident surface; a second light guiding device, having a third incident surface, which is not parallel to one of the first incident surface and the second incident surface; a third light guiding device, having an outlet surface; a first phase switching device, disposed between the first light guiding device and the second light guiding device, the first phase switching device being adapted to be in one of a first status and a second status; and a second phase switching device, disposed between the second light guiding device and the third light guiding device, the second phase switching device being adapted to be in one of a third status and a fourth status;