OPTICAL SENSOR WITH OVERVIEW CAMERA

Measuring system (1') comprising a triangulation-based distance measuring device having a light emitting unit (11') for providing measuring light, a light receiving unit (12') for detecting measuring light reflected from an object to be measured and a processing unit for deriving distance information based on a detected reflection of measuring light. The system comprises a visual guiding unit (21') for providing a projection of a visual marker onto the object, the guiding light source is different from the measuring light source. The light emitting unit (11'), the light receiving unit (12') and the visual guiding unit (21') are arranged with known spatial positions and orientations relative to each other. The light emitting unit (11') and the visual guiding unit (21') are arranged relative to each other to provide a light reflection onto the object by emitting the measuring light and the projection of the visual marker onto the object with defined spatial relationship depending on a particular distance and/or orientation of the triangulation-based distance measuring device relative to the object. The measuring system (1') comprises a camera (22'), wherein the field of view of the camera (22') is greater than the field of view of the light receiving unit (12') and the camera (22') is arranged and configured to capture an image covering the light reflection and the projection of the visual marker and to provide image information according to a captured image.