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Detector comprising a transversal optical sensor for detecting a transversal position of a light beam from an object and a longitudinal optical sensor sensing a beam cross-section of the light beam in a sensor region

  • US 9,389,315 B2
  • Filed: 12/18/2013
  • Issued: 07/12/2016
  • Est. Priority Date: 12/19/2012
  • Status: Active Grant
First Claim
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1. A detector comprising:

  • a transversal optical sensor, the transversal optical sensor being adapted to determine a transversal position of at least one light beam traveling from an object to the detector, the transversal position being a position in at least one dimension perpendicular to an optical axis of the detector, the transversal optical sensor being adapted to generate at least one transversal sensor signal;

    a longitudinal optical sensor, wherein the longitudinal optical sensor has at least one sensor region, wherein the longitudinal optical sensor is designed to generate at least one longitudinal sensor signal in a manner dependent on an illumination of the sensor region by the light beam, wherein the longitudinal sensor signal, given the same total power of the illumination, is dependent on a beam cross-section of the light beam in the sensor region; and

    an evaluation device, wherein the evaluation device is designed to generate at least one item of information on a transversal position of the object by evaluating the transversal sensor signal and to generate at least one item of information on a longitudinal position of the object by evaluating the longitudinal sensor signal.

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