Importance

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Abstract

The invention relates to an optoelectronic device (1) for detecting markings affixed to objects by using a transmitter (6) that emits light rays (8), a receiver (11) that receives light rays (10), an evaluation unit (5) and a deflection unit (9) at which the transmitting light rays (8) are reflected and, as a result, are periodically guided inside a predetermined angular range. At least two stationary reflecting units are installed in series after the deflection unit (9). The transmitting light rays (8) are guided over the first reflecting unit inside a first segment .DELTA..alpha..sub.1 of the angular range .DELTA..alpha., so that these rays periodically scan a first segment of a three-dimensional detection range. Inside of a second segment .DELTA..alpha..sub.2 of the angular range .DELTA..alpha., the transmitting light rays (8) are guided over a second reflecting unit, so that these rays periodically scan a second segment of the three-dimensional monitoring range. The object can be introduced into the detection range for detecting the markings on the object.

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First Claim