Detection device for detecting contamination
AssigneeRobert Bosch GmbH
InventorsAnnette Frederiksen, Stefanie Hartmann, Tobias Peterseim
Life of this patent
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Abstract
A detection device for detecting contamination of an optical element. The detection device includes a coupling device, including a first coupling element for coupling light of at least one wavelength from a light source into the optical element, and a second coupling element for coupling light out from the optical element, at least one of the coupling elements including a hologram, and having a detector for acquiring the coupled-out light.
Claims13
1-12. (canceled)
A detection device for detection of contamination of an optical element, comprising:
- a coupling device including a first coupling element configured to couple light of at least one wavelength from a light source into the optical element, and a second coupling element configured to couple light out from the optical element, at least one of the first and second coupling elements including a hologram;
- and
- a detector configured to acquire the coupled-out light.
A sensor device for detection of objects using light of at least one wavelength, comprising:
- an object light source configured to emit light of at least one wavelength into an object space;
- an object detector configured to receive light reflected by an object;
- an optical element configured as a covering of the sensor device;
- and
- a detection device including:
- a coupling device including a first coupling element configured to couple light of at least one wavelength from a light source into the optical element, and a second coupling element configured to couple light out from the optical element, at least one of the first and second coupling elements including a hologram;
- and
- a detector configured to acquire the coupled-out light;
- wherein the coupling device and the covering of the sensor device are configured to work together for the coupling in and out of light.
A method for producing a coupling device, comprising the following steps:
- providing a first coupling element configured to couple light into an optical element;
- providing a second coupling element configured to couple light out from the optical element;
- wherein at least one of the first and second coupling elements is provided by printing or a recording of a hologram on a bearer material.
Dependencies are inferred from the claim text.