Patent ID: 6828931
Filing Date: 2004-12-07
Classification: G01S

Abstract:
A process for adjusting a detecting axis of an object detecting means to detect an object positioned in a predetermined detecting area established in a traveling direction of a vehicle by transmitting an electromagnetic wave to the detecting area and receiving a wave resulting from a reflection of the electromagnetic wave from the object, the process comprising the following steps:a first disposing step wherein a reference reflector is disposed at a predetermined location in front of the object detecting means relative to the traveling direction of the vehicle upon which the object detecting means is mounted; a second disposing step wherein an electromagnetic wave absorber is disposed in front of and in proximity of the reference reflector relative to the traveling direction of the vehicle and the reference reflector is positioned between the object detecting means and the electromagnetic wave absorber; wherein the electromagnetic wave absorber has an extent including an entire projected image of the reference reflector; and an adjusting step wherein a misaligned object detecting axis of the object detecting means is adjusted in at least one of a vertical direction and a horizontal direction upon transmitting the electromagnetic wave toward the reference reflector and receipt of a wave resulting from the electromagnetic wave reflecting off the reference reflector, wherein the reference reflector assumes a reference position of the detecting area.