DE102006031677A1 - Light sensor for e.g. mounting at windscreen of motor vehicle, has sensor matrix for converting light into electrical signals, imaging system lying in optical path of light, and processing unit equipped for processing signals - Google Patents
Light sensor for e.g. mounting at windscreen of motor vehicle, has sensor matrix for converting light into electrical signals, imaging system lying in optical path of light, and processing unit equipped for processing signals Download PDFInfo
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- DE102006031677A1 DE102006031677A1 DE102006031677A DE102006031677A DE102006031677A1 DE 102006031677 A1 DE102006031677 A1 DE 102006031677A1 DE 102006031677 A DE102006031677 A DE 102006031677A DE 102006031677 A DE102006031677 A DE 102006031677A DE 102006031677 A1 DE102006031677 A1 DE 102006031677A1
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- light
- sensor
- light sensor
- transducer elements
- sensor according
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- 239000011159 matrix material Substances 0.000 title claims abstract description 21
- 238000003384 imaging method Methods 0.000 title claims abstract description 15
- 230000003287 optical effect Effects 0.000 title claims abstract 3
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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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
- G01J1/42—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
- 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
- G01J1/0209—Monolithic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/40—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
- H04N25/44—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array
-
- 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
Abstract
Description
STAND DER TECHNIKSTATE OF THE ART
Die Erfindung betrifft einen Lichtsensor für ein Kraftfahrzeug mit einer Sensormatrix aus Wandlerelementen zur Umwandlung von Licht in elektrische Signale, wobei die Wandlerelemente gruppiert sind und jeder Gruppe ein Erfassungswinkelbereich des Lichts zugewiesen ist.The The invention relates to a light sensor for a motor vehicle with a Sensor matrix of transducer elements for converting light into electrical Signals, with the transducer elements grouped and each group a detection angle range of the light is assigned.
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der Druckschrift mit der Veröffentlichungsnummer
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Schließlich sind aus dem Stand der Technik Fahrzeuge mit einem sogenannten Head-Up-Display bekannt, bei dem an die Windschutzscheibe ein Bild projiziert wird. Fahrzeuge mit einem solchen Head-Up-Display benötigen einen Sensor zur Ansteuerung der Beleuchtungsstärke des Head-Up-Displays da die Sichtbarkeit des Head-Up-Displays von der Außenhelligkeit abhängt. Der Erfassungsbereich für einen derartigen Sensor ist – wie beim Tunnelsensor – ebenfalls nach vorne gerichtet, jedoch ist der Erfassungswinkel kleiner als beim Tunnelsensor.Finally are known from the prior art vehicles with a so-called head-up display, where an image is projected onto the windshield. vehicles with such a head-up display need a sensor for driving the illuminance of the head-up display because the visibility of the head-up display of the external brightness depends. The detection area for such a sensor is - like at the tunnel sensor - also directed to the front, however, the detection angle is smaller than at the tunnel sensor.
Für die verschiedenen Funktionen eines Lichtsensors sind bei den Vorschlägen, wie sie aus dem Stand der Technik bekannt sind, eine Vielzahl von mechanischen oder elektronischen Bauelementen notwendig. Zusätzliche beziehungsweise besonders ausgestaltete Bauelemente für die verschiedenen Funktionen ziehen jedoch höhere Kosten nach sich. Die Kostensteigerungen können dabei bei der Beschaffung, aber auch bei der Lagerung von entsprechenden Teilen entstehen.For the different ones Functions of a light sensor are in the proposals, such as they are known in the art, a variety of mechanical or electronic components necessary. Additional or special designed components for however, the various functions entail higher costs. The Cost increases can in the procurement, but also in the storage of appropriate Parts arise.
Hier setzt die vorliegende Erfindung an.Here uses the present invention.
VORTEILE DER ERFINDUNGADVANTAGES OF THE INVENTION
Der Erfindung liegt die Aufgabe zugrunde, einen Lichtsensor vorzuschlagen, der für möglichst viele Funktionen geeignet und eingerichtet ist und möglichst wenig Teile umfasst.Of the Invention has for its object to propose a light sensor, the for preferably many functions are suitable and furnished and possible includes little parts.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Lichtsensor ein Abbildungssystem aufweist, welches im Strahlengang des Lichts aus zumindest zwei Erfassungswinkelbereichen liegt und somit zumindest zwei Gruppen von Wandlerelementen zugeordnet ist.These Task is inventively characterized solved, that the light sensor has an imaging system which is in the beam path of the light is at least two detection angle ranges and Thus, at least two groups of transducer elements is assigned.
Bei einem erfindungsgemäßen Lichtsensor wird somit eine Sensormatrix aus lichtempfindlichen Wandlerelementen verwendet, die mit einem Abbildungssystem zusammenwirken. In Abhängigkeit des Erfassungswinkelbereichs des einfallenden Lichts werden verschiedene Wandlerelemente aktiviert, wobei die Wandlerelemente zu Gruppen zusammengefasst werden. Die Sensorsignale einer Gruppe werden ausgewertet und verarbeitet, so dass das für die gewünschte Funktion des Lichtsensors erforderliche Signal durch den Lichtsensor erzeugt werden kann.at a light sensor according to the invention is thus a sensor matrix of photosensitive transducer elements used, which interact with an imaging system. Dependent on of the detection angle range of the incident light become different Transducer elements activated, the transducer elements to groups be summarized. The sensor signals of a group are evaluated and processed, so that for the desired Function of the light sensor required signal through the light sensor can be generated.
Vorteilhaft weist der Lichtsensor ein einziges Abbildungssystem auf, das in dem Strahlengang des Lichts aus allen Erfassungswinkelbereichen liegt und somit allen Gruppen von Wandlerelementen zugeordnet ist.Advantageously, the light sensor has a single imaging system which lies in the beam path of the light from all detection angle ranges and is thus supplied to all groups of transducer elements is orders.
Eine besondere Ausführung des Lichtsensors kann ein weiteres Abbildungssystem aufweisen, welches ebenfalls in dem Strahlengang des Lichts aus allen Erfassungswinkelbereichen liegt und somit ebenfalls allen Gruppen von Wandlerelementen zugeordnet ist.A special design the light sensor may have another imaging system which also in the beam path of the light from all detection angle ranges is and thus also associated with all groups of transducer elements is.
Der Lichtsensor ist vorteilhaft zur Anbringung an einer Windschutzscheibe eines Kraftfahrzeugs geeignet und eingerichtet.Of the Light sensor is advantageous for attachment to a windshield a motor vehicle suitable and furnished.
Jeder Erfassungswinkelbereich kann genau eine Funktion des Lichtsensors zugewiesen sein. Jeder Gruppe von Wandlerelementen ist somit eindeutig eine Funktion des Lichtsensors zugewiesen. Allerdings ist es möglich, dass einzelne Wandlerelemente gleichzeitig verschiedenen Gruppen oder auch keiner Gruppe zugeordnet sind.Everyone Detection angle range can be exactly one function of the light sensor be assigned. Each group of transducer elements is thus unique assigned a function of the light sensor. However, it is possible that individual transducer elements simultaneously different groups or are not assigned to any group.
Ein erfindungsgemäßer Lichtsensor kann die Funktionen eines Regensensors eines Tunnelsensors, eines Sensors für die Außenhelligkeit zur Steuerung eines Head-Up-Displays, eines Fernlichtsensors, eines Vorfeldsensors, insbesondere für ein Lane Departure Warning System haben.One inventive light sensor can perform the functions of a rain sensor of a tunnel sensor, a Sensors for the external brightness for controlling a head-up display, a high-beam sensor, a Apron sensor, especially for have a lane departure warning system.
Ein erfindungsgemäßer Lichtsensor kann ein Verarbeitungsmittel aufweisen, welches zur Verarbeitung der von der Sensormatrix erzeugten Sensorsignale geeignet und eingerichtet ist. Das Verarbeitungsmittel kann geeignet und eingerichtet sein, die Sensorsignale der zu einer Gruppe zusammengefassten Wandlerelemente zu einem einer der Funktionen des Lichtsensors zugeordneten Ausgangssignal zu verarbeiten. Die Ausgangssignale können an einem oder an mehreren Ausgängen, insbesondere jedoch an einer Schnittstelle zu einem Bussystem abgreifbar sein.One inventive light sensor may comprise a processing agent which is for processing the sensor signals generated by the sensor matrix and adapted is. The processing means may be suitable and arranged the sensor signals of the grouped into a group transducer elements to an output signal associated with one of the functions of the light sensor to process. The output signals may be at one or more outputs, but in particular can be tapped at an interface to a bus system be.
Der Lichtsensor kann gemäß der Erfindung so ausgestaltet sein, dass zum Gruppieren der Wandlerelemente und zum Zuweisen der Erfassungswinkelbereiche zu einer Gruppe programmierbar ist. Es kann dabei die Anzahl der zu einer Gruppe gehörigen Wandlerelemente programmierbar sein. Zugleich ist es möglich, dass die Zugehörigkeit eines Wandlerelements zu einer der Gruppen programmierbar ist.Of the Light sensor according to the invention so be configured such that for grouping the transducer elements and the Assign the detection angle ranges to a programmable group is. It can be the number of belonging to a group transducer elements be programmable. At the same time it is possible that belonging a transducer element to one of the groups is programmable.
Das Abbildungssystem kann eine einzige Linse umfassen.The Imaging system may include a single lens.
ZEICHNUNGENDRAWINGS
Ein Ausführungsbeispiel für einen erfindungsgemäßen Lichtsensor ist in den Zeichnungen schematisch dargestellt. Es zeigtOne embodiment for one Light sensor according to the invention is shown schematically in the drawings. It shows
BESCHREIBUNG DER AUSFÜHRUNGSBEISPIELEDESCRIPTION OF THE EMBODIMENTS
Der
in den Figuren dargestellte erfindungsgemäße Sensor umfasst einen Schaltungsträger
Die
Sensormatrix
Die
verschiedenen Wandlerelemente sind zu Gruppen zusammengefasst. Die
Gruppen
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006031677A DE102006031677A1 (en) | 2006-07-08 | 2006-07-08 | Light sensor for e.g. mounting at windscreen of motor vehicle, has sensor matrix for converting light into electrical signals, imaging system lying in optical path of light, and processing unit equipped for processing signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102006031677A DE102006031677A1 (en) | 2006-07-08 | 2006-07-08 | Light sensor for e.g. mounting at windscreen of motor vehicle, has sensor matrix for converting light into electrical signals, imaging system lying in optical path of light, and processing unit equipped for processing signals |
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Publication Number | Publication Date |
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DE102006031677A1 true DE102006031677A1 (en) | 2008-01-10 |
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Family Applications (1)
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DE102006031677A Ceased DE102006031677A1 (en) | 2006-07-08 | 2006-07-08 | Light sensor for e.g. mounting at windscreen of motor vehicle, has sensor matrix for converting light into electrical signals, imaging system lying in optical path of light, and processing unit equipped for processing signals |
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DE (1) | DE102006031677A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3720406A1 (en) * | 1986-06-19 | 1988-01-07 | Honda Motor Co Ltd | COMPOSITE LIGHT SENSOR |
GB2311602A (en) * | 1996-03-27 | 1997-10-01 | Rover Group | A sensing system for a vehicle |
DE19638693A1 (en) * | 1996-09-20 | 1998-04-02 | Fraunhofer Ges Forschung | Photodetector and color filter using a photodetector |
US5796094A (en) * | 1993-02-26 | 1998-08-18 | Donnelly Corporation | Vehicle headlight control using imaging sensor |
EP1015287B1 (en) * | 1997-09-24 | 2002-12-11 | Leopold Kostal GmbH & Co. KG | Optoelectronic monitoring device for a motor vehicle |
DE10144147A1 (en) * | 2001-09-07 | 2003-03-27 | Kostal Leopold Gmbh & Co Kg | Optoelectronic sensor, use of such a sensor and optoelectronic steering angle sensor |
-
2006
- 2006-07-08 DE DE102006031677A patent/DE102006031677A1/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3720406A1 (en) * | 1986-06-19 | 1988-01-07 | Honda Motor Co Ltd | COMPOSITE LIGHT SENSOR |
US5796094A (en) * | 1993-02-26 | 1998-08-18 | Donnelly Corporation | Vehicle headlight control using imaging sensor |
GB2311602A (en) * | 1996-03-27 | 1997-10-01 | Rover Group | A sensing system for a vehicle |
DE19638693A1 (en) * | 1996-09-20 | 1998-04-02 | Fraunhofer Ges Forschung | Photodetector and color filter using a photodetector |
EP1015287B1 (en) * | 1997-09-24 | 2002-12-11 | Leopold Kostal GmbH & Co. KG | Optoelectronic monitoring device for a motor vehicle |
DE10144147A1 (en) * | 2001-09-07 | 2003-03-27 | Kostal Leopold Gmbh & Co Kg | Optoelectronic sensor, use of such a sensor and optoelectronic steering angle sensor |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
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Effective date: 20130508 |
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R081 | Change of applicant/patentee |
Owner name: HELLA GMBH & CO. KGAA, DE Free format text: FORMER OWNER: HELLA KGAA HUECK & CO., 59557 LIPPSTADT, DE |
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R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |