Patent ID: 7380960
Filing Date: 2008-06-03
Classification: G02B,G03B,H04N

Abstract:
1. An illumination system, having a first axis and a second axis intersecting said first axis at an intersection point, comprising: a beam splitting unit, having a beam splitting interface; a first lamp, adapted to provide a first beam; a second lamp, adapted to provide a second beam; a light collecting component; and a reflective component, wherein two of said first lamp, said second lamp, said light collecting component, and said reflective component are disposed at one side of a beam splitting interface and located on said first axis and said second axis respectively, said others are disposed at the other side of said beam splitting interface and located on said first axis and said second axis respectively, said first axis and said second axis form an included angle, 0 degrees<the included angle<180 degrees, said beam splitting unit allows a portion of said first beam and a portion of said second beam to pass through and reflects the other portion of said first beam and the other portion of said second beam according to the ratio of transmission to reflection of the beam splitting unit, the color of the portion of the first beam passing through the beam splitting unit and that of the other portion of the first beam reflected by the beam splitting unit are the same, the color of the portion of the second beam passing through the beam splitting unit and that of the other portion of the second beam reflected by the beam splitting unit are the same, said reflective component, said first lamp, and said second lamp reflect portions of said first beam and said second beam from said beam splitting unit back to said beam splitting unit, and said reflective component has a coating layer coated thereon for filtering out infrared and ultraviolet light from said first beam and second beam.