Patent ID: 9417378
Filing Date: 2016-08-16
CPC Classification: G02B

Claim Text:
1. A light guide for guiding light emitted from at least one light source, comprising: at least one light emitting area that emits light from the at least one light source, the at least one light emitting area being defined in a part of a light exit surface; and a plurality of reflection patterns arranged in at least one reflection area on a facing surface facing the light exit surface, wherein the at least one reflection area corresponds to the at least one light emitting area, wherein the plurality of reflection patterns are arranged so that an amount of the light arriving at an observer observing the light exit surface from the at least one light emitting area after being reflected on a reflection pattern among the plurality of reflection patterns is continuously changed in accordance with a position in the at least one light emitting area, and wherein each of the plurality of reflection patterns is such that an angle between a reflection surface of the reflection pattern, the reflection surface being for reflecting the light, and the facing surface is continuously changed in accordance with where the reflection pattern is located in the at least one reflection area.