Opto-electronic monitoring device for e.g. automobile application, has image sensor determining distance of object, and testing unit formed to modify light penetrating into image sensor in targeted manner such that sensor receives light

摘要

#CMT# #/CMT# The device (1) has an image sensor (4) for determining the distance of an object from the reception of light of a light source (2) e.g. laser diode, which is reflected by the object. A testing unit (5) is formed to test the operability of the image sensor. The testing unit is formed to modify the light penetrating into the image sensor in a targeted manner such that the image sensor receives the light according to a given distance falsified around a well-known value. #CMT# : #/CMT# An independent claim is also included for a method for testing an opto-electronic monitoring device. #CMT#USE : #/CMT# Opto-electronic monitoring device, for use in an automobile application and a theft safety device for monitoring distance of an object in a danger area. #CMT#ADVANTAGE : #/CMT# The image sensor determines the distance of the object from the reception of the light of the light source, which is reflected by the object, thus enabling a function test in the opto-electronic monitoring device in a non-complex manner, and hence detecting errors of a control device in a simple and safe manner. The test avoids a need of further mechanics for moving a laser beam or a test sample. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic overall view of an optoelectronic monitoring device with an internal auxiliary lighting over a beam splitter. 1 : Opto-electronic monitoring device 2 : Light source 3 : Imaging optical system 4 : Image sensor 5-7 : Testing units.