Vehicle optoelectronic precipitation sensor with adjustable lens holder
First Claim
1. An optoelectronic sensor device for sensing wetting of a motor vehicle windshield having precipitation, the sensor device comprising:
- a first circuit support;
a radiation emitter arranged proximate to the first circuit support to emit radiation toward a windshield;
a radiation detector arranged proximate to the first circuit support to detect radiation reflected back from the windshield;
a lens holder holding beam shaping means respectively associated with the radiation emitter and the radiation detector, wherein the beam shaping means associated with the radiation emitter parallelizes and directs at least some of radiation emitted by the radiation emitter toward the windshield, wherein the beam shaping means associated with the radiation detector focuses and directs at least some radiation reflected back from the windshield toward the radiation detector;
a coupling element for coupling at least some radiation emitted by the radiation emitter into the windshield and for coupling at least some radiation reflected back from the windshield out of the windshield;
a structural element arranged between the lens holder and the coupling element; and
a second circuit support arranged between the lens holder and the structural element;
wherein the structural element has retaining elements for holding and positioning the second circuit support relative to the windshield.
1 Assignment
0 Petitions
Accused Products
Abstract
An optoelectronic sensor for sensing wetting of a windshield includes a first circuit, and a radiation emitter and a radiation detector both arranged on the first circuit to emit radiation toward the windshield and to detect radiation reflected from the windshield. Beam shapers parallelize the emitted radiation toward the windshield and focus radiation reflected from the windshield toward the detector. A coupling element couples the emitted radiation into the windshield and couples the reflected radiation out of the windshield. A structural element is arranged between the lens holder and the coupling element. The structural element may have retaining elements for positioning a second circuit arranged between the lens holder and the structural element relative to the windshield. The structural element may have support elements for adjustably positioning the lens holder and thereby the beam shapers relative to the first circuit and the windshield.
44 Citations
17 Claims
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1. An optoelectronic sensor device for sensing wetting of a motor vehicle windshield having precipitation, the sensor device comprising:
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a first circuit support; a radiation emitter arranged proximate to the first circuit support to emit radiation toward a windshield; a radiation detector arranged proximate to the first circuit support to detect radiation reflected back from the windshield; a lens holder holding beam shaping means respectively associated with the radiation emitter and the radiation detector, wherein the beam shaping means associated with the radiation emitter parallelizes and directs at least some of radiation emitted by the radiation emitter toward the windshield, wherein the beam shaping means associated with the radiation detector focuses and directs at least some radiation reflected back from the windshield toward the radiation detector; a coupling element for coupling at least some radiation emitted by the radiation emitter into the windshield and for coupling at least some radiation reflected back from the windshield out of the windshield; a structural element arranged between the lens holder and the coupling element; and a second circuit support arranged between the lens holder and the structural element; wherein the structural element has retaining elements for holding and positioning the second circuit support relative to the windshield. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An optoelectronic sensor device for sensing wetting of a motor vehicle windshield having precipitation, the sensor device comprising:
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a first circuit support; a radiation emitter arranged proximate to the first circuit support to emit radiation toward a windshield; a radiation detector arranged proximate to the first circuit support to detect radiation reflected back from the windshield; a lens holder holding beam shaping means respectively associated with the radiation emitter and the radiation detector, wherein the beam shaping means associated with the radiation emitter parallelizes and directs at least some radiation emitted by the radiation emitter toward the windshield, wherein the beam shaping means associated with the radiation detector focuses and directs at least some radiation reflected back from the windshield toward the radiation detector; a coupling element for coupling at least some radiation emitted by the radiation emitter into the windshield and for coupling at least some radiation reflected back from the windshield out of the windshield; a structural element arranged between the lens holder and the coupling element, wherein the structural element includes means for positioning the lens holder relative to the coupling element; and a second circuit support arranged between the lens holder and the structural element, wherein the structural element has retaining elements for holding and positioning the second circuit support relative to the coupling element. - View Dependent Claims (15, 16, 17)
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Specification