Light-beam generator and projecting system having the light-beam generator

摘要

A light-beam generator and a projecting system having the light-beam generator are proposed in the present invention. The light-beam generator includes an optical element and a light-emitting diode, wherein the optical element further includes a non-spherical reflecting curved surface which at least has a focus. Also, the light-emitting diode is located at the focus of the optical element for emitting light to the reflecting curved surface to form a light beam which is guided in a specific direction. By such arrangement, an output efficiency of light beams can be improved and a heat dissipation requirement can be reduced. Additionally, the light-beam generator proposed in the present invention can be applied to a projecting system having illuminant with specific polarized directions, so as to eliminate various prior-art drawbacks.