Lighting apparatus comprising a plurality of LEDs and an optical element for diffusing the light and eliminating a ghost image of the point light sources

摘要

An apparatus adapted for eliminating a ghost image of point light sources is disclosed. The apparatus includes a plurality of point light sources adjacently arranged, and a plurality of medium elements provided corresponding to the point light sources. Each of the point light sources is adapted for emitting a light. Each of the medium elements includes a light input surface, and a light output surface, and both of the light input surface and the output surface are arcuate surfaces adapted for diffusing the light emitted from the point light source. The point light source emits the light, and the light is inputted from the light input surface of the medium element and outputted from the light output surface of the medium element, thus configuring a uniformly distributed light without producing a ghost image. Further, a fluorescent material may be mixed in the medium element for obtaining a color combined light.