Spatial division structure and light reflection device and lidar scanning system having same

Abstract

Disclosed is a spatial division structure. A spatial division structure according to an exemplary embodiment of the present invention is mounted to divide a reflective surface of a rotary reflection structure provided in the form of a polyhedron and configured to reflect light and includes a blocking plate having therein an insertion space into which the rotary reflection structure is inserted, the blocking plate having a board shape extending in a direction perpendicular to a rotation axis of the rotary reflection structure from the reflective surface to divide the reflective surface into a first reflective surface and a second reflective surface, and frames configured to fix a position of the blocking plate to the reflective surface, in which the frames include one or more first frames connected to the blocking plate and positioned at a lateral side of the first reflective surface, the one or more first frames extending in a direction of the rotation axis of the rotary reflection structure, and one or more second frames each connected to one end of each of one or more first frames and positioned at an upper side of the first reflective surface, the one or more second frames extending to cross the one or more first frames.