Title:
OPTOELECTRONIC SENSOR AND METHOD OF DEFLECTING LIGHT BEAM
Document Type and Number:
Japanese Patent JP2020046424
Kind Code:
A
Abstract:
To improve light beam deflection with stacked switchable blazed diffraction gratings.SOLUTION: An optoelectronic sensor (10) is provided having a light receiver (30), reception optics (26, 28) arranged upstream of the light receiver (30), and a control and evaluation unit (32). The reception optics (26, 28) have a beam deflection device (26) having a plurality of switchable blazed diffraction gratings of different grating constants arranged one behind another. The control and evaluation unit (32) is configured to switch a blazed diffraction grating on and off in accordance with a desired deflection angle of the beam deflection device (26). At least two blazed diffraction gratings have the same grating constants but mutually different blaze angles.SELECTED DRAWING: Figure 1
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Inventors:
HARTMUT GIMPEL
THOMAS RUSS
THOMAS RUSS
Application Number:
JP2019165104A
Publication Date:
March 26, 2020
Filing Date:
September 11, 2019
Export Citation:
Assignee:
SICK AG
International Classes:
G01S7/481
Domestic Patent References:
| JP2013195995A | 2013-09-30 | |||
| JP2011209262A | 2011-10-20 | |||
| JPH04269725A | 1992-09-25 |
Foreign References:
| WO2013014875A1 | 2013-01-31 |
Attorney, Agent or Firm:
Kyoto International Patent Office