Patent ID: 7438444

Claim:
A light guide lens for turning incident light rays emitted from a point source and coming in all directions into laterally exiting light rays, the light guide lens comprising: a lens body having a light incidence surface and a light emission surface; a plurality of refraction structures formed on the light incidence surface, adjoined each other and configured to receive and refract the incident light rays such that the incident light rays turn to the light emission surface, wherein the refraction structures have the same focus coinciding with the point source and refract the incident light rays coming in all directions into refracted parallel light rays; and a plurality of reflection structures formed on the light emission surface such that the refracted parallel light rays arriving from the refraction structures reflect off the reflection structures and laterally exit the lens body, wherein the refracted parallel light rays arriving from each of the refraction structures travel to a corresponding one of the reflection structures, such that the incident light rays exit laterally.