DE29924958U1 - Optical sensor for use in motor vehicles for detecting ambient parameters, which influence visibility - Google Patents
Optical sensor for use in motor vehicles for detecting ambient parameters, which influence visibility Download PDFInfo
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- DE29924958U1 DE29924958U1 DE29924958U DE29924958U DE29924958U1 DE 29924958 U1 DE29924958 U1 DE 29924958U1 DE 29924958 U DE29924958 U DE 29924958U DE 29924958 U DE29924958 U DE 29924958U DE 29924958 U1 DE29924958 U1 DE 29924958U1
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Classifications
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- 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
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/18—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights being additional front lights
- B60Q1/20—Fog lights
-
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/0204—Compact construction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4228—Photometry, e.g. photographic exposure meter using electric radiation detectors arrangements with two or more detectors, e.g. for sensitivity compensation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/04—Systems determining the presence of a target
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
- G01S7/4813—Housing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/31—Atmospheric conditions
- B60Q2300/312—Adverse weather
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/31—Atmospheric conditions
- B60Q2300/314—Ambient light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
- G01J1/0411—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Die Erfindung betrifft einen optischen Sensor mit den im Oberbegriff des Anspruchs 1 genannten Merkmalen.The The invention relates to an optical sensor with those in the preamble of claim 1 features.
Stand der TechnikState of technology
Es sind Scheibenwischvorrichtungen für Windschutzscheiben von Kraftfahrzeugen bekannt, bei denen eine Steuerung der Scheibenwischer nicht nur über einen manuell betätigbaren Lenkstockhebel, sondern zusätzlich über einen optischen Regensensor erfolgt. Der optische Regensensor umfaßt eine Lichtquelle, deren elektromagnetische Strahlung von der Windschutzscheibe, je nach Feuchtigkeitsbelag auf der Windschutzscheibe, unterschiedlich reflektiert wird. Der reflektierte Anteil wird mittels eines Photoelementes erfaßt, so daß ein dem Feuchtigkeitsbelag entsprechendes Ausgangssignal des Regensensors bereitgestellt werden kann. Diese Ausgangssignale können derart ausgewertet und zur Steuerung der Scheibenwischer verwendet werden, daß sowohl die Einschaltung der Scheibenwischvorrichtung als auch eine Wischergeschwindigkeit in Abhängigkeit von einer erfaßten Benetzung der Windschutzscheibe variiert werden kann.It are windshield wiper devices for windshields of motor vehicles known in which a control of the windscreen wiper not only over a manually operable Steering column lever, but in addition to a optical rain sensor takes place. The optical rain sensor comprises a light source, their electromagnetic radiation from the windscreen, depending after moisture coating on the windshield, different is reflected. The reflected portion is detected by means of a photoelement detected, so that one the moisture content corresponding output signal of the rain sensor can be provided. These output signals can be such evaluated and used to control the windscreen wiper that both the engagement of the windshield wiper device as well as a wiper speed dependent on from a detected Wetting the windscreen can be varied.
Weiterhin sind Vorrichtungen zur automatischen Einschaltung einer Beleuchtungsanlage im Kraftfahrzeug bekannt. Durch Messung eines Ausgangssignals eines Photoelementes wird auf eine Umgebungshelligkeit des Kraftfahrzeuges geschlossen und in Abhängigkeit davon eine Fahrzeugbeleuchtung ohne Zutun eines Fahrers eingeschaltet.Farther are devices for automatically switching on a lighting system known in the motor vehicle. By measuring an output signal of a Photoelementes is on an ambient brightness of the motor vehicle closed and dependent thereof turned on a vehicle lighting without the intervention of a driver.
Vorteile der ErfindungAdvantages of invention
Der erfindungsgemäße optische Sensor mit den im Anspruch 1 genannten Merkmalen weist insbesondere den Vorteil auf, einen kombinierten Sensor zur Steuerung der für einen Fahrer wichtigen sichtverbessernden Fahrzeugausrüstung bereitzustellen. Neben einem Regensensor zur Steuerung einer Scheibenwischanlage ist ein Sensor zur Erfassung einer Außenhelligkeit in dem optischen Sensor integriert, so daß in Abhängigkeit von der gemessenen Umgebungshelligkeit eine Beleuchtungsanlage ein- und ausgeschaltet werden kann und in Abhängigkeit einer Benetzung der Windschutzscheibe mit Niederschlag die Scheibenwischanlage automatisch ansteuerbar ist.Of the according to the invention optical Sensor having the features mentioned in claim 1 features in particular the advantage of having a combined sensor to control the for a To provide drivers with important visual enhancement vehicle equipment. Next a rain sensor for controlling a windscreen wiper system is a Sensor for detecting external brightness integrated in the optical sensor so that, depending on the measured Ambient brightness on and off a lighting system can be and depending wetting the windshield with rainfall the windshield wiper system is automatically controlled.
In bevorzugter Ausgestaltung der Erfindung kann anhand der erfaßten sichtbeeinflussenden Parameter, nämlich im wesentlichen Niederschläge in Form von Regen, Nebel oder Schneefall sowie die Umgebungshelligkeit, eine kombinierte Steuerung der Scheibenwischanlage und der Beleuchtungsanlage realisiert werden. So kann es einerseits bei starkem Regen sinnvoll sein, neben den Scheibenwischern zusätzlich die Fahrzeugscheinwerfer einzuschalten. Andererseits ist es bei Dunkelheit aufgrund der wesentlich erhöhten Blendgefahr durch Scheinwerferlicht entgegenkommender Fahrzeuge noch wichtiger als tagsüber, die Windschutzscheibe jederzeit von Nässe freizuhalten. Daher ist es sinnvoll, bei Dunkelheit eine erhöhte Empfindlichkeit der Scheibenwischersteuerung bereits auf geringe Benetzungsgrade der Windschutzscheibe vorzusehen. Eine Umschaltung der Regensensor-Empfindlichkeit zur Ansteuerung der Scheibenwischanlage kann vorzugsweise durch ein von einem Umgebungslichtsensor gebildetes Signal beeinflußt werden.In Preferred embodiment of the invention can be based on the detected sichtbeeinflussenden Parameters, namely essentially rainfall in the form of rain, fog or snow, as well as the ambient brightness, a combined control of the windscreen wiper system and the lighting system will be realized. So it makes sense on the one hand in heavy rain be, in addition to the windscreen wipers in addition to the vehicle headlights turn. On the other hand, it is essential in the dark increased Danger of dazzle by headlights of oncoming vehicles even more important than during the day, to keep the windscreen clear of moisture at all times. thats why it makes sense in the dark increased sensitivity of the windscreen wiper control already provide for low wetting degrees of the windshield. A Switching the rain sensor sensitivity to control the Windscreen wiper system may preferably by one of an ambient light sensor formed signal affected become.
Eine Kombination von Regen- und Außenlichtsensor in einem gemeinsamen optischen Sensor weist zudem den Vorteil einer erheblichen Installations- und Montagevereinfachung auf, woraus zudem eine Kostenreduzierung resultiert. Durch eine Montage aller erforderlichen elektronischen und optoelektronischen Bauteile auf einer gemeinsamen Platine, vorzugsweise in SMD(surface mounted device)-Technik bestückt, lassen sich sehr kompakte Sensoren realisieren, die sich zudem im Fahrzeug problemlos montieren lassen. So kann ein derartiger optischer Sensor ebenso kompakt ausgeführt sein wie bekannte Regensensoren und wie diese beispielsweise hinter einem Innenrückspiegel an der Innenseite der Windschutzscheibe montiert sein.A Combination of rain and outside light sensor in a common optical sensor also has the advantage of a considerable installation and assembly simplification on what In addition, a cost reduction results. By a montage of all required electronic and optoelectronic components a common board, preferably in SMD (surface mounted device) technology stocked, can be realized very compact sensors, which also in the Vehicle can be easily installed. So can such an optical Sensor just as compact like known rain sensors and like these, for example, behind an interior rearview mirror be mounted on the inside of the windshield.
In einer bevorzugten Ausgestaltung der Erfindung kann neben einem Helligkeitssensor für Umgebungslicht, der ein weitgehend vom Tageslicht beeinflußtes Signal liefert und dementsprechend einen relativ weiten und vorzugsweise nach oben gerichteten Öffnungskegel für einfallendes Licht aufweist, wenigstens ein zusätzlicher Fernsensor vorgesehen sein, der einen schmalen und vorzugsweise in Fahrtrichtung nach vorne gerichteten Öffnungskegel aufweist. Dadurch ist dieser Fernsensor in der Lage, mit relativ hoher Zuverlässigkeit Tunneleinfahrten oder Unterführungen zu erkennen und somit bereits frühzeitig ein Signal zur Einschaltung der Fahrzeugbeleuchtung zu liefern.In A preferred embodiment of the invention, in addition to a brightness sensor for ambient light, which provides a signal largely influenced by daylight and accordingly a relatively wide and preferably upward opening cone for incidental Light, at least one additional remote sensor be provided, the one narrow and preferably in the direction of travel forward directed opening cone having. As a result, this remote sensor is able to with relative high reliability Tunnel entrances or underpasses to recognize and thus early to provide a signal for switching on the vehicle lighting.
Die Fokussierung des einfallenden Lichts kann in vorteilhafter Weise durch einen Lichtleiter erfolgen, der gleichzeitig als Grundplatte für das Sensorgehäuse fungiert. Ein solcher Lichtleiter kann beispielsweise aus einem Kunststoff wie PMMA (Polymethylmetachrylat) im Spritzgußverfahren hergestellt sein, wobei sich in einfacher Weise optische Strukturen wie Sammellinsen im Formprozeß einbringen lassen.The Focusing the incident light can be beneficial done by a light guide, the same time as a base plate for the sensor housing acts. Such a light guide, for example, from a Plastic such as PMMA (polymethylmetachrylate) by injection molding be prepared, which in a simple way optical structures how to bring in collecting lenses in the molding process to let.
Die Verbindung zur Windschutzscheibe kann entweder durch einen Rahmen auf der Scheibe und darin eingeklipstem Sensorgehäuse oder auch in sehr einfacher Weise mittels einer doppelseitig selbstklebenden transparenten Folie realisiert werden.The connection to the windshield can either by a frame on the disc and it clipped sensor housing or in a very simple manner by means of a double-sided self-adhesive transparent film can be realized.
In einer weiteren bevorzugten Ausgestaltung lassen sich zusätzliche Steuerungsfunktionen implementieren, beispielsweise eine Zuschaltung von Nebelscheinwerfern. Durch einen entsprechend empfindlichen Regensensor kann dieser die Tropfengröße erkennen und damit unterscheiden, ob die Benetzung der Scheibe auf Regen, Nebel oder Schneefall beruht. Bei starkem Nebel oder Schneefall können so neben den Scheibenwischern die Nebelscheinwerfer und/oder die Nebelschlußleuchten zugeschaltet werden und damit eine weitere Erhöhung der Fahrsicherheit erreicht werden. So kann vorzugsweise bei Nebel ein aus feinsten Tröpfchen bestehender Niederschlag auf der Windschutzscheibe durch den Regensensor detektiert werden. Über eine entsprechende Auslegung einer Software zur Auswertung der Regensensorsignale kann dann eine Zuschaltung einzelner Bestandteile der Lichtanlage (Nebelleuchte, Nebelschlußleuchte) ausgelöst werden.In a further preferred embodiment can be additional Implement control functions, such as a connection of fog lights. By a correspondingly sensitive rain sensor This can recognize the drop size and thus distinguish whether the wetting of the disc on rain, Fog or snowfall is based. In heavy fog or snowfall can so next to the windshield wipers the fog lights and / or the Rear fog lamps be switched on and thus achieved a further increase in driving safety become. Thus, in the case of fog, it is possible for one to consist of the finest droplets Precipitation on the windshield detected by the rain sensor become. about a corresponding design of a software for the evaluation of the rain sensor signals can then be a connection of individual components of the lighting system (Fog lamp, rear fog lamp) triggered become.
In bevorzugter Ausgestaltung der Erfindung ist vorgesehen, daß sowohl der Empfänger des Regensensors als auch wenigstens einer der Empfänger des Umgebungshelligkeitssensors und/oder des Fernsensors von einem gemeinsamen Photoelement gebildet sind. Hierdurch läßt sich der Aufwand an einzusetzenden optoelektronischen Bauelementen für den kombinierten Regensensor und Außenlichtsensor des Kraftfahrzeuges reduzieren. Der Empfänger kann somit eine Doppelfunktion zur Bereitstellung von Ansteuersignalen sowohl für die Scheibenwischanlage als auch für die Beleuchtungsanlage des Kraftfahrzeuges übernehmen. Insbesondere ist bevorzugt, wenn ein Lichtleiter des optischen Sensors Strukturen aufweist, die eine entsprechende Fokussierung der zu sensierenden elektromagnetischen Wellen auf das gemeinsame Photoelement übernimmt. Somit kann mit einfachen Mitteln sowohl die Umgebungshelligkeit als auch die Benetzung der Windschutzscheibe sensiert werden.In preferred embodiment of the invention is provided that both the recipient the rain sensor and at least one of the receivers of Ambient brightness sensor and / or remote sensor from a common Photoelement are formed. This allows the effort to be used optoelectronic components for the combined rain sensor and outside light sensor of the motor vehicle. The receiver can thus have a dual function for providing drive signals for both the windshield wiper system and also for take over the lighting system of the motor vehicle. In particular preferred when a light guide of the optical sensor structures which has a corresponding focus of the to be sensed electromagnetic waves on the common photoelement takes over. Thus, with simple means, both the ambient brightness as well as the wetting of the windscreen are sensed.
In weiterer bevorzugter Ausgestaltung der Erfindung ist vorgesehen, daß die Sendediode des Regensensors getaktet ansteuerbar ist. Hierdurch kann der gemeinsame Empfänger entsprechend eines Tastverhältnisses der getakteten Ansteuerung die empfangenen Signale der Regensensorfunktion beziehungsweise der automatischen Lichtsteuerungsfunktion des optischen Sensors zuordnen.In Another preferred embodiment of the invention is provided, that the Transmitting diode of the rain sensor clocked clocked is controlled. This can the common receiver according to a duty cycle the clocked control the received signals of the rain sensor function or the automatic light control function of the optical sensor assign.
Weitere bevorzugte Ausgestaltungen der Erfindung ergeben sich aus den übrigen, in den Unteransprüchen genannten Merkmalen.Further preferred embodiments of the invention will become apparent from the others, in the subclaims mentioned features.
Zeichnungendrawings
Die Erfindung wird nachfolgend in Ausführungsbeispielen anhand der zugehörigen Zeichnungen näher erläutert. Es zeigen:The Invention will be described below in embodiments with reference to FIG associated Drawings closer explained. Show it:
Beschreibung der Ausführungsbeispieledescription the embodiments
Im
Gehäuse
Befindet
sich nun am Ort der Reflexion des Lichtstrahls
Die
gewünschte
Fokussierung des Lichtstrahles
Auf
der Platine
Erkennbar
ist zudem ein Fernsensor
Die
Der
Lichtleiter
In
den
In
den
Gemäß der in
Es
ist klar, daß entsprechend
der in den
In
den
Gemäß
In
der in
Claims (26)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE29924958U DE29924958U1 (en) | 1998-03-17 | 1999-03-11 | Optical sensor for use in motor vehicles for detecting ambient parameters, which influence visibility |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19811529 | 1998-03-17 | ||
DE19811529.6 | 1998-03-17 | ||
DE19839273A DE19839273A1 (en) | 1998-03-17 | 1998-08-28 | Optical sensor for use in motor vehicles for detecting ambient parameters, which influence visibility |
DE19839273.7 | 1998-08-28 | ||
DE29924958U DE29924958U1 (en) | 1998-03-17 | 1999-03-11 | Optical sensor for use in motor vehicles for detecting ambient parameters, which influence visibility |
EP99914438A EP0981470B2 (en) | 1998-03-17 | 1999-03-11 | Optical sensor |
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DE29924958U1 true DE29924958U1 (en) | 2007-02-22 |
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DE29924958U Expired - Lifetime DE29924958U1 (en) | 1998-03-17 | 1999-03-11 | Optical sensor for use in motor vehicles for detecting ambient parameters, which influence visibility |
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DE (1) | DE29924958U1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008019178A1 (en) * | 2008-04-17 | 2009-11-05 | Preh Gmbh | Sensor arrangement with a capacitive rain sensor and a light sensor |
EP2020350A3 (en) * | 2007-07-25 | 2010-05-26 | Robert Bosch Gmbh | System for capturing optical signals with a rain sensor and method |
EP2570302A3 (en) * | 2011-09-13 | 2014-03-19 | Niles Co., Ltd. | Vehicular light automatic control device |
DE102017200712A1 (en) | 2017-01-18 | 2018-07-19 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle and method for determining a degree of contamination of a motor vehicle |
-
1999
- 1999-03-11 DE DE29924958U patent/DE29924958U1/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2020350A3 (en) * | 2007-07-25 | 2010-05-26 | Robert Bosch Gmbh | System for capturing optical signals with a rain sensor and method |
DE102008019178A1 (en) * | 2008-04-17 | 2009-11-05 | Preh Gmbh | Sensor arrangement with a capacitive rain sensor and a light sensor |
DE102008019178B4 (en) * | 2008-04-17 | 2010-04-08 | Preh Gmbh | Sensor arrangement with a capacitive rain sensor and a light sensor |
EP2570302A3 (en) * | 2011-09-13 | 2014-03-19 | Niles Co., Ltd. | Vehicular light automatic control device |
DE102017200712A1 (en) | 2017-01-18 | 2018-07-19 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle and method for determining a degree of contamination of a motor vehicle |
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