Light guide device

Abstract

A light guide device according to an embodiment of the present invention is a light guide device including a plate portion in which light is totally reflected therein, a first diffraction portion configured to diffract the light totally reflected inside the plate portion to the outside, a second diffraction portion configured to diffract the light incident into the plate portion toward the first diffraction portion, and a camera module which is disposed adjacent to the first diffraction portion and on which the light diffracted by the first diffraction portion is incident, wherein the first diffraction portion and the second diffraction portion each include a grating pattern having an inclination on an incident surface on which the light is incident, and the plate portion is inclined toward an object.

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