DE19830120A1 - Optoelectronic sensor to detect precipitation on external surface of glass pane - Google Patents

Optoelectronic sensor to detect precipitation on external surface of glass pane

Info

Publication number
DE19830120A1
DE19830120A1 DE19830120A DE19830120A DE19830120A1 DE 19830120 A1 DE19830120 A1 DE 19830120A1 DE 19830120 A DE19830120 A DE 19830120A DE 19830120 A DE19830120 A DE 19830120A DE 19830120 A1 DE19830120 A1 DE 19830120A1
Authority
DE
Germany
Prior art keywords
optoelectronic sensor
transparent
pane
sensor device
segmented
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19830120A
Other languages
German (de)
Other versions
DE19830120B4 (en
Inventor
Norbert Bendicks
Detlef Dr Kerkmann
Ralf Boebel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leopold Kostal GmbH and Co KG
Original Assignee
Leopold Kostal GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leopold Kostal GmbH and Co KG filed Critical Leopold Kostal GmbH and Co KG
Priority to DE19830120A priority Critical patent/DE19830120B4/en
Publication of DE19830120A1 publication Critical patent/DE19830120A1/en
Application granted granted Critical
Publication of DE19830120B4 publication Critical patent/DE19830120B4/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B60S1/0874—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means characterized by the position of the sensor on the windshield
    • B60S1/0888—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means characterized by the position of the sensor on the windshield characterized by the attachment of the elements in a unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B60S1/0833—Optical rain sensor
    • B60S1/0837—Optical rain sensor with a particular arrangement of the optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens

Abstract

The beam from a radiation sensor is concentrated by a condenser device on an area of the inner surface corresponding to the outer surface area to be monitored. The beam reflected from the outer surface is focused by a focusing device onto a receiver. The condenser and focusing devices are formed by segmented lenses (8,9) on the inner surface of the pane (1). The surfaces of the segments are arranged at an angle matching that of the emitted and reflected beams

Description

Die Erfindung betrifft eine optoelektronische Sensoreinrichtung zur Erfassung der Benetzung der äußeren Oberfläche einer transparenten Scheibe mit Niederschlag, mit einem ein divergierendes Strahlenbündel emittierenden Strahlensender, mit einer Parallelisierungseinrichtung für das Strahlenbündel, die das Strahlenbündel über die innere Oberfläche der Scheibe auf einen der äußeren Oberfläche zugehörigen Meßbereich richtet, und mit einer Fokussierungseinrichtung, die das in dem Meßbereich reflektierte Strahlenbündel fokussiert, sowie mit einem auf den Fokus ausgerichteten Strahlenempfänger.The invention relates to an optoelectronic sensor device for detection the wetting of the outer surface of a transparent pane Precipitation, with a beam emitting a diverging beam Radiation transmitter, with a parallelization device for the beam, which the beam of rays across the inner surface of the disk onto one of the aligned outer surface associated measuring range, and with a Focusing device that reflected that in the measuring range Focused beams, as well as with one focused on the focus Radiation receiver.

Die DE 195 12 864 C1 beschreibt eine optoelektronische Sensoreinrichtung der gattungsgemäßen Art, bei der die Parallelisierungseinrichtung und die Fokussierungseinrichtung als Hologramme in einer auf der Innenfläche der Kraftfahrzeugscheibe angeordneten transparenten Folie ausgebildet sind. Hologramme werden durch Änderungen der inneren Struktur der Folie erzeugt. Derartige Änderungen sind nicht bei allen Stoffen möglich. Außerdem sind die entsprechenden Verfahren recht aufwendig.DE 195 12 864 C1 describes an optoelectronic sensor device of the Generic type, in which the parallelization device and Focusing device as holograms in a on the inner surface of the Motor vehicle window arranged transparent film are formed. Holograms are created by changing the internal structure of the film. Such changes are not possible for all substances. Besides, they are  corresponding procedures quite expensive.

Aufgabe der Erfindung ist die Verwendung eines beliebigen, möglichst flach bauenden, optischen Körpers für die Parallelisierungseinrichtung und die Fokussierungseinrichtung.The object of the invention is the use of any, as flat as possible building, optical body for the parallelization device and Focusing device.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß die Parallelisierungseinrichtung und die Fokussierungseinrichtung jeweils als segmentierte Linse ausgebildet sind, und daß die beiden Linsen nebeneinander in einer Ebene liegend im Bereich der inneren Oberfläche der Scheibe angeordnet sind.This object is achieved according to the invention in that the Parallelization device and the focusing device each as segmented lens are formed, and that the two lenses side by side lying in one plane in the area of the inner surface of the pane are arranged.

Die Erfindung unterscheidet sich insofern vom Stand der Technik, als die Struktur einer segmentierten Linse in jede Oberfläche eingearbeitet werden kann. Die Sensoreinrichtung kann daher in einfacher Weise hergestellt werden.The invention differs from the prior art in that Structure of a segmented lens can be incorporated into any surface can. The sensor device can therefore be manufactured in a simple manner.

Eine vorteilhafte Anordnung erreicht man dadurch, daß die optischen Achsen der beiden segmentierten Linsen entgegengesetzt unter einem Winkel von jeweils 45° zur Fläche der Scheibe geneigt sind, wobei jedoch auch andere Winkel nicht ausgeschlossen sind.An advantageous arrangement is achieved in that the optical axes of the two segmented lenses opposite at an angle of are each inclined at 45 ° to the surface of the disk, but also others Angles are not excluded.

Einen dünnen Aufbau des Optikkörpers erreicht man dadurch, daß die segmentierten Linsen auf einem transparenten, plattenförmig ausgebildeten Optikkörper ausgebildet sind, und daß der Optikkörper durch ein optisches Koppelmedium mit der transparenten Scheibe verbunden ist.A thin structure of the optic body is achieved in that the segmented lenses on a transparent, plate-shaped Optical body are formed, and that the optical body by an optical Coupling medium is connected to the transparent disc.

Grenzflächenreflexionen lassen sich dadurch minimieren, daß als Koppelmedium ein transparenter Klebstoff vorgesehen ist.Interface reflections can be minimized by using Coupling medium a transparent adhesive is provided.

Zur Herabsetzung der Anzahl der Bauteile und zur Verbesserung der optischen Übergangsbedingungen wird vorgeschlagen, daß die segmentierten Linsen in die innere Oberfläche der transparenten Scheibe eingeformt sind.To reduce the number of components and to improve the optical Transitional conditions suggest that the segmented lenses in the inner surface of the transparent pane is molded.

Ausführungsbeispiele werden anhand der Zeichnungen erläutert, in denen darstellen:Exemplary embodiments are explained with reference to the drawings, in which represent:

Fig. 1 einen Schnitt durch eine optoelektronische Sensoreinrichtung, Fig. 1 shows a section through an opto-electronic sensor device,

Fig. 2 einen Schnitt durch ein zweites Ausführungsbeispiel, Fig. 2 shows a section through a second embodiment,

Fig. 3 eine perspektivische Ansicht des zweiten Ausführungsbeispiels. Fig. 3 is a perspective view of the second embodiment.

Fig. 1 zeigt einen Ausschnitt einer transparenten Scheibe, insbesondere einer Kraftfahrzeugscheibe 1, auf der mittels eines nicht dargestellten, transparenten Koppelmediums ein transparenter, plattenförmiger Optikkörper 2 angebracht ist. Der Optikkörper 2 weist eine umlaufende Positionsleiste 3 auf, die eine genaue Ausrichtung eines nicht dargestellten Gehäuses der Sensoreinrichtung ermöglicht. Fig. 1 shows a section of a transparent pane, in particular a motor vehicle window pane 1, is not shown on the means of one coupling medium transparent, a transparent plate-shaped optical body 2 is mounted. The optic body 2 has a circumferential position bar 3 , which enables precise alignment of a housing, not shown, of the sensor device.

Das Gehäuse nimmt einen Strahlensender 4 und einen Strahlenempfänger 5 auf, die nur schematisch dargestellt sind. Es handelt sich normalerweise um einen Infrarotstrahlensender und einen Infrarotstrahlenempfänger. Die Achse 6 des divergenten Senderstrahlenbündels und die Achse 7 des konvergenten Empfängerstrahlenbündels sind unter 45° zur Ebene der Kraftfahrzeugscheibe 1 und des Optikkörpers 2 ausgerichtet.The housing accommodates a radiation transmitter 4 and a radiation receiver 5 , which are only shown schematically. It is usually an infrared ray transmitter and an infrared ray receiver. The axis 6 of the divergent transmitter beam and the axis 7 of the convergent receiver beam are aligned at 45 ° to the plane of the motor vehicle window 1 and the optic body 2 .

Der Optikkörper 2 trägt als Parallelisierungseinrichtung für das divergente Senderstrahlenbündel eine segmentierte Linse 8 und als Fokussierungseinrichtung für das Empfängerstrahlenbündel eine weitere segmentierte Linse 9.The optical body 2 carries a segmented lens 8 as a parallelization device for the divergent transmitter beam and a further segmented lens 9 as a focusing device for the receiver beam.

Die einzelnen Segmente der segmentierten Linse 8 bestehen aus prismatischen Körpern mit unterschiedlichen Grundflächen, deren Hochachsen parallel zur Achse 6 des Senderstrahlenbündels - d. h. in diesem Falle unter einem Winkel von 45° geneigt zur Eintrittsfläche des Optikkörpers 2 - ausgerichtet sind und deren dem Strahlensender zugewandte Oberfläche so geformt ist, daß die auf ihnen auftreffenden Strahlen in der Scheibe (1) als Parallelstrahlenbündel 10 parallel zur Achse 6 verlaufen.The individual segments of the segmented lens 8 consist of prismatic bodies with different base areas, the vertical axes of which are aligned parallel to the axis 6 of the transmitter beam - in this case at an angle of 45 ° to the entrance surface of the optical body 2 - and the surface thereof facing the radiation transmitter is shaped so that the rays incident on them in the disc ( 1 ) run parallel to the axis 6 as a parallel beam 10 .

Dieses Parallelstrahlenbündel 10 trifft auf die äußere Oberfläche der Kraftfahrzeugscheibe auf und wird dort totalreflektiert. Eine Benetzung der äußeren Oberfläche beeinflußt die Totalreflexion, was hier nicht in Einzelheiten erläutert wird. Das totalreflektierte Parallelstrahlenbündel 11 wird als Empfängerlichtbündel durch die segmentierte Linse 9 auf den Strahlenempfänger 6 fokussiert.This parallel beam 10 strikes the outer surface of the motor vehicle window and is totally reflected there. Wetting of the outer surface influences the total reflection, which is not explained in detail here. The totally reflected parallel beam 11 is focused as a receiver light beam through the segmented lens 9 on the radiation receiver 6 .

Die segmentierte Linse 9 ist analog zur segmentierten Linse 8 aufgebaut und ist im hier dargestellten Ausführungsbeispiel spiegelsymmetrisch zu dieser, so daß sich der resultierende Strahlengang durch Umkehrung des zuvor beschriebenen Strahlenganges auf der Senderseite ergibt.The segmented lens 9 is constructed analogously to the segmented lens 8 and, in the exemplary embodiment shown here, is mirror-symmetrical to the latter, so that the resulting beam path is obtained by reversing the previously described beam path on the transmitter side.

Der Strahlensender 4 und der Strahlenempfänger 5 sind in dem nicht dargestellten, durch die Positionsleiste 3 ausgerichteten Gehäuse fixiert.The radiation transmitter 4 and the radiation receiver 5 are fixed in the housing (not shown ) aligned by the position bar 3 .

Eine Ausführungsform der Sensoreinrichtung, bei der die segmentierten Linsen unmittelbar in die innere Oberfläche der Kraftfahrzeugscheibe eingeformt sind, ist in Fig. 2 im Schnitt und in Fig. 3 in einer räumlichen Ansicht dargestellt. Die Struktur ist in der Oberfläche durch Pressen, Walzen, Prägen, Fräsen, Schleifen oder dergleichen geformt.An embodiment of the sensor device, in which the segmented lenses are molded directly into the inner surface of the motor vehicle window, is shown in section in FIG. 2 and in a spatial view in FIG. 3. The structure is formed in the surface by pressing, rolling, embossing, milling, grinding or the like.

Claims (5)

1. Optoelektronische Sensoreinrichtung zur Erfassung der Benetzung der äußeren Oberfläche einer transparenten Scheibe mit Niederschlag, mit einem ein divergierendes Strahlenbündel emittierenden Strahlensender, mit einer Parallelisierungseinrichtung für das Strahlenbündel, die das Strahlenbündel über die innere Oberfläche der Scheibe auf einen der äußeren Oberfläche zugehörigen Meßbereich richtet, und mit einer Fokussierungseinrichtung, die das in dem Meßbereich reflektierte Strahlenbündel fokussiert, sowie mit einem auf den Fokus ausgerichteten Strahlenempfänger, dadurch gekennzeichnet, daß die Parallelisierungseinrichtung und die Fokussierungseinrichtung jeweils als segmentierte Linse (8, 9) ausgebildet sind und daß die beiden Linsen nebeneinander in einer Ebene liegend im Bereich der inneren Oberfläche der Scheibe (1) angeordnet sind, wobei die Oberflächen der Linsensegmente jeweils den Winkeln angepaßt sind, unter denen an ihrem jeweiligen Ort das emittierte Strahlenbündel auf die Scheibe (1) trifft, und das reflektierte Strahlenbündel die Scheibe (1) verläßt. 1.Optoelectronic sensor device for detecting the wetting of the outer surface of a transparent pane with precipitation, with a radiation transmitter emitting a diverging beam, with a parallelizing device for the beam, which directs the beam over the inner surface of the pane to a measuring area associated with the outer surface, and with a focusing device which focuses the beam of rays reflected in the measuring range, and with a beam receiver aligned with the focus, characterized in that the parallelization device and the focusing device are each designed as a segmented lens ( 8 , 9 ) and that the two lenses are arranged side by side in A plane lying in the area of the inner surface of the disc ( 1 ) are arranged, the surfaces of the lens segments are each adapted to the angles at which the emittie at their respective location rt beam hits the pane ( 1 ), and the reflected beam leaves the pane ( 1 ). 2. Optoelektronische Sensoreinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die optischen Achsen (6, 7) der beiden segmentierten Linsen (8, 9) entgegengesetzt unter einem Winkel von jeweils 45° zur Fläche der Scheibe (1) geneigt sind.2. Optoelectronic sensor device according to claim 1, characterized in that the optical axes ( 6 , 7 ) of the two segmented lenses ( 8 , 9 ) are inclined opposite at an angle of 45 ° to the surface of the disc ( 1 ). 3. Optoelektronische Sensoreinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die segmentierten Linsen (8, 9) auf einem transparenten, plattenförmig ausgebildeten Optikkörper (2) ausgebildet sind und daß der Optikkörper (2) durch ein optisches Koppelmedium mit der transparenten Scheibe (1) verbunden ist.3. Optoelectronic sensor device according to claim 1 or 2, characterized in that the segmented lenses ( 8 , 9 ) are formed on a transparent, plate-shaped optical body ( 2 ) and that the optical body ( 2 ) by an optical coupling medium with the transparent disc ( 1 ) is connected. 4. Optoelektronische Sensoreinrichtung nach Anspruch 3, dadurch gekennzeichnet, daß als Koppelmedium ein transparenter Klebstoff vorgesehen ist.4. Optoelectronic sensor device according to claim 3, characterized characterized in that a transparent adhesive as coupling medium is provided. 5. Optoelektronische Sensoreinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die segmentierten Linsen (8, 9) in die innere Oberfläche der transparenten Scheibe (1) eingeformt sind.5. Optoelectronic sensor device according to claim 1 or 2, characterized in that the segmented lenses ( 8 , 9 ) are molded into the inner surface of the transparent disc ( 1 ).
DE19830120A 1997-07-09 1998-07-06 Optoelectronic sensor device Expired - Fee Related DE19830120B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19830120A DE19830120B4 (en) 1997-07-09 1998-07-06 Optoelectronic sensor device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19729308 1997-07-09
DE19729308.5 1997-07-09
DE19830120A DE19830120B4 (en) 1997-07-09 1998-07-06 Optoelectronic sensor device

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DE19830120A1 true DE19830120A1 (en) 1999-02-04
DE19830120B4 DE19830120B4 (en) 2006-07-06

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10001705A1 (en) * 2000-01-18 2001-07-19 Valeo Auto Electric Gmbh Moisture detector for translucent plate used as windshield, has optical sensor which is integrally formed to moisture sensor for detecting environmental brightness of translucent material
EP1413490A2 (en) * 2002-10-22 2004-04-28 Robert Bosch Gmbh Sensor device and mounting method for a sensor device
WO2006005558A1 (en) * 2004-07-13 2006-01-19 Leopold Kostal Gmbh & Co. Kg Optoelectronic sensor device for a motor vehicle
DE202006005665U1 (en) * 2006-04-05 2007-08-16 Trw Automotive Electronics & Components Gmbh & Co. Kg Optical sensor device
US7309873B2 (en) * 2004-09-02 2007-12-18 Denso Corporation Raindrop sensor
US7468523B2 (en) * 2004-09-28 2008-12-23 Denso Corporation Raindrop detection apparatus having lens unit larger than radius of reflected light
WO2009015988A1 (en) * 2007-08-01 2009-02-05 Robert Bosch Gmbh Device for determining the reflective properties of a boundary
DE102008000599A1 (en) 2008-03-11 2009-09-17 Robert Bosch Gmbh Device for determining the reflection properties of an interface with improved extraneous light suppression
EP2120025A1 (en) 2008-05-16 2009-11-18 TRW Automotive Electronics & Components GmbH Optical sensor device for detecting ambient light
EP2196793A2 (en) * 2008-12-11 2010-06-16 TRW Automotive Electronics & Components GmbH Optical sensor device
US7751054B2 (en) 2007-06-04 2010-07-06 Trw Automotive Electronics & Components Gmbh Optical sensor device for detecting wetting
US7804055B2 (en) 2007-08-01 2010-09-28 Trw Automotive Electronics & Components Gmbh Optical sensor device for the windshield of a motor vehicle having Fresnel lens structures
WO2011060911A1 (en) * 2009-11-18 2011-05-26 Trw Automotive Electronics & Components Gmbh Optical sensing device for detecting ambient light in motor vehicles
EP2112039A3 (en) * 2008-04-22 2011-09-21 TRW Automotive Electronics & Components GmbH Optical sensor device
CN104215267A (en) * 2013-05-30 2014-12-17 赫拉胡克公司 Sensor device
DE102015008298A1 (en) * 2015-06-29 2016-12-29 Hella Kgaa Hueck & Co. Sensor device for detecting moisture on a pane and motor vehicle

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DE19701258A1 (en) * 1996-01-18 1997-07-24 Itt Mfg Enterprises Inc Rain sensing system for transparent material surfaces e.g. windscreens

Cited By (34)

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Publication number Priority date Publication date Assignee Title
DE10001705A1 (en) * 2000-01-18 2001-07-19 Valeo Auto Electric Gmbh Moisture detector for translucent plate used as windshield, has optical sensor which is integrally formed to moisture sensor for detecting environmental brightness of translucent material
EP1413490A2 (en) * 2002-10-22 2004-04-28 Robert Bosch Gmbh Sensor device and mounting method for a sensor device
EP1413490A3 (en) * 2002-10-22 2005-03-16 Robert Bosch Gmbh Sensor device and mounting method for a sensor device
US7414237B2 (en) 2004-07-13 2008-08-19 Leopold Kostal Gmbh & Co. Kg Optoelectronic sensor device for a motor vehicle
WO2006005558A1 (en) * 2004-07-13 2006-01-19 Leopold Kostal Gmbh & Co. Kg Optoelectronic sensor device for a motor vehicle
CN100506618C (en) * 2004-07-13 2009-07-01 利奥波德·科世达责任有限股份公司 Optoelectronic sensor device for a motor vehicle
US7309873B2 (en) * 2004-09-02 2007-12-18 Denso Corporation Raindrop sensor
DE102005041588B4 (en) * 2004-09-02 2020-08-13 Denso Corporation Raindrop sensor
CN1743833B (en) * 2004-09-02 2010-09-01 株式会社电装 Raindrop sensor
US7705338B2 (en) 2004-09-28 2010-04-27 Denso Corporation Raindrop detection apparatus with case and lenses integrally configured and circuit board supported by case
US7468523B2 (en) * 2004-09-28 2008-12-23 Denso Corporation Raindrop detection apparatus having lens unit larger than radius of reflected light
EP1842751A1 (en) * 2006-04-05 2007-10-10 TRW Automotive Electronics & Components GmbH & Co. KG Optical sensor device
DE202006005665U1 (en) * 2006-04-05 2007-08-16 Trw Automotive Electronics & Components Gmbh & Co. Kg Optical sensor device
US7751054B2 (en) 2007-06-04 2010-07-06 Trw Automotive Electronics & Components Gmbh Optical sensor device for detecting wetting
EP2000373A3 (en) * 2007-06-04 2011-09-07 TRW Automotive Electronics & Components GmbH Optical sensor device for capturing sprinkling
WO2009015988A1 (en) * 2007-08-01 2009-02-05 Robert Bosch Gmbh Device for determining the reflective properties of a boundary
DE102007039349A1 (en) 2007-08-01 2009-02-05 Robert Bosch Gmbh Device for determining the reflection properties of an interface
US7804055B2 (en) 2007-08-01 2010-09-28 Trw Automotive Electronics & Components Gmbh Optical sensor device for the windshield of a motor vehicle having Fresnel lens structures
EP2020348A3 (en) * 2007-08-01 2010-11-03 TRW Automotive Electronics & Components GmbH Optical sensor device
DE102008000599A1 (en) 2008-03-11 2009-09-17 Robert Bosch Gmbh Device for determining the reflection properties of an interface with improved extraneous light suppression
EP2112039A3 (en) * 2008-04-22 2011-09-21 TRW Automotive Electronics & Components GmbH Optical sensor device
CN101566695B (en) * 2008-04-22 2011-11-16 Trw车辆电气与零件有限公司 Optical sensor device
US8269202B2 (en) 2008-04-22 2012-09-18 Trw Automotive Electronics & Components Gmbh Optical sensor device
EP2120025A1 (en) 2008-05-16 2009-11-18 TRW Automotive Electronics & Components GmbH Optical sensor device for detecting ambient light
US7894054B2 (en) 2008-05-16 2011-02-22 Trw Automotive Electronics & Components Gmbh Optical sensor device for detecting ambient light
EP2196793A3 (en) * 2008-12-11 2010-12-01 TRW Automotive Electronics & Components GmbH Optical sensor device
US8082783B2 (en) 2008-12-11 2011-12-27 Trw Automotive Electronics & Components Gmbh Optical sensor device
EP2196793A2 (en) * 2008-12-11 2010-06-16 TRW Automotive Electronics & Components GmbH Optical sensor device
WO2011060911A1 (en) * 2009-11-18 2011-05-26 Trw Automotive Electronics & Components Gmbh Optical sensing device for detecting ambient light in motor vehicles
US9546900B2 (en) 2009-11-18 2017-01-17 Trw Automotive Electronics & Components Gmbh Optical sensing device for detecting ambient light in motor vehicles comprising a prism structure having a plurality of prisms designed to direct rays of a specific ambient light beam
CN104215267A (en) * 2013-05-30 2014-12-17 赫拉胡克公司 Sensor device
CN104215267B (en) * 2013-05-30 2018-06-01 赫拉胡克公司 Sensor device
DE102015008298A1 (en) * 2015-06-29 2016-12-29 Hella Kgaa Hueck & Co. Sensor device for detecting moisture on a pane and motor vehicle
US9845073B2 (en) 2015-06-29 2017-12-19 Hella Kgaa Hueck & Co. Sensor device for recording moisture on a window and motor vehicle

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