Patent ID: 9207073
Filing Date: 2015-12-08
Classification: G01C,G01N,G01S

Abstract:
1. An active object detection sensor that operates to form a detection area by a transmission area having a plurality of division areas and a reception area having a plurality of division areas being overlaid on each other, and to detect an object in the detection area, the active object detection sensor comprising: a plurality of transmitter elements each configured to transmit detection rays for object detection sequentially, to the transmission area; a plurality of receiver elements each configured to receive the detection ray reflected by the object from the reception area; and an optical divider disposed, in front of at least one of the transmitter elements and the receiver elements, wherein the optical divider, so disposed on at least one of a transmission side and a reception side, has a plurality of optical dividing pieces each having a plurality of optical deflection surfaces on which an angle of the detection ray is varied to a plurality of angles for dividing the detection ray toward the plurality of division areas, the optical deflection surface in the optical dividing pieces on at least one of the transmission side and the reception side being set to have a given angle, so as to assign at least one of the detection ray from the transmitter elements and the detection ray toward the receiver elements, to a given division area, such that a combination of the transmitter elements and the receiver elements forming one of the division areas is different from a combination of the transmitter elements and the receiver elements forming another one of the division areas.