| 摘要 |
An optoelectronic protection device has an evaluation unit (11) for generating a switching signal when an unallowed object is located within an entrance aperture (2). The housing containing the lighting devices (6) is shaped so that the housing only slightly juts into the entrance aperture and that the spatial angle illuminated by the lighting device, as well as the angle of view of the photographic camera, is sufficiently large so that objects of a given dimension can be reliably detected within the entrance aperture (2). |
