Light guide and light emitting device

摘要

A light guide including a plurality of reflection patterns in a reflection area in a facing surface facing a light exit surface, which area corresponds to a light emitting area, and the reflection patterns are arranged so that an amount of light reflected by the reflection patterns, emitted from the light emitting area to arrive at an observer observing the light exit surface is continuously changed in accordance with a position in the light emitting area.

主权项

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.