Patent ID: 8243288
Filing Date: 2012-08-14
Classification: G02B,G06F

Abstract:
1. An object detection system comprising: light radiation means for radiating light of a two-dimensional pattern to an object; light sweeping means for carrying out a sweeping operation by continuously changing the radiation direction of said light of a two-dimensional pattern within a space determined in advance; light reflection means attached to a predetermined location on said object to serve as a detection subject and used for reflecting said light of a two-dimensional pattern in a direction opposite to said radiation direction of said light of a two-dimensional pattern; reflected-light detection means for detecting said light reflected by said light reflection means to appear as light arriving at said reflected-light detection means; and reflected-light analysis means for computing vertical-direction and horizontal-direction angles on the basis of a signal representing said reflected light detected by said reflected-light detection means, wherein,