Optoelectronic device
AssigneeLeuze Electronic GmbH & Co.
InventorsJörg Worner, Jörg Droemer
Life of this patent
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Abstract
An optoelectronic device for detecting marks having defined contrast patterns includes a transmitter for emitting transmitted light beams having a wavelength λ in a range of 350 nm ≦λ≦450 nm. A transmission lens is located downstream of the transmitter. A receiver is provided for receiving received light beams and generating reception signals corresponding to the received light beams. A receiving lens is located upstream of the receiver and has an area AC of less than or equal to 5 cm2. A guiding mechanism guides the transmitted light beams at the marks and the reflected light beams from the marks as received light beams to the receiver. An evaluation unit is coupled to an output of the receiver for evaluating the reception signals.
Claims9
An optoelectronic device for detecting marks having defined contrast patterns, comprising:
- a transmitter for emitting transmitted light beams having a wavelength λ in a range of 350 nm≦λ≦450 nm;
- a transmission lens downstream of the transmitter;
- a receiver for receiving received light beams and generating reception signals corresponding to the received light beams;
- a receiving lens located upstream of the receiver and having an area AC of less than or equal to 5 cm2;
- means for guiding the transmitted light beams at the marks and for guiding reflected light beams from the marks as received light beams to the receiver;
- and
- an evaluation unit coupled to an output of the receiver for evaluating the reception signals.
Dependencies are inferred from the claim text.