Patent ID: 8085471
Filing Date: 2011-12-27
Classification: G02B

Abstract:
1. A light integrating device for an illumination system, the illumination system comprising a first light source module and a second light source module, providing a first light and a second light respectively, the light integrating device comprising: a principal axis; a first light collecting element having a first end portion and a second end portion opposite to the first end portion; a second light collecting element having a first incident portion, an outlet portion opposite to the first incident potion and a second incident portion, wherein the second light collecting element comprises a first prism and a light converging portion, and the first light collecting element and the light converging portion are tapered and symmetrically disposed regarding the first prism; and a beam splitting element disposed between the second end portion and the first incident portion; wherein, after the first light enters the first end portion of the first light collecting element, the beam splitting element is adapted to split the first light into a plurality of light groups, in which the plurality of light groups have at least one light group adapted to transmit through the beam splitting element into the second light collecting element, and after the second light enters the second incident portion of the second light collecting element, the second light is adapted to be reflected by the beam splitting element and emit out from the outlet portion of the second light collecting element along the principal axis together with the at least one light group.