Method for operating a monitoring device and monitoring device

摘要

The invention relates to a method for operating a monitoring device in which a predetermined monitoring area is monitored by means of at least one optoelectronic sensor, safety radiation which can be detected by the sensor is emitted into the monitoring area by means of at least one radiation source, and a working area which at least partially coincides with the monitoring area by means of an illumination device is illuminated by means of illuminating radiation visible to the human eye, the radiation source and the illuminating device being operated in a manner coordinated with one another in such a way that the safety radiation and the illuminating radiation differ from one another at least with regard to a radiation parameter accessible to a differentiated evaluation. The invention also relates to a monitoring device.