Optical distance sensor for cars has two timing channels

摘要

An optical distance sensor splits laser pulses (2, 2A) reflected from a target into two time delay channels with the passage of the first reflected pulses (3, 3A) automatically switching the second pulse (4, 4A) to the second channel (14) and time measurements (6, 7, 8, 9) gated by the forward and trailing pulse edges.