DE10334147A1 - Infra-red imaging system for automobile using headlamp with lamp and filter for blocking visible light together with IR sensor coupled to display device - Google Patents
Infra-red imaging system for automobile using headlamp with lamp and filter for blocking visible light together with IR sensor coupled to display device Download PDFInfo
- Publication number
- DE10334147A1 DE10334147A1 DE10334147A DE10334147A DE10334147A1 DE 10334147 A1 DE10334147 A1 DE 10334147A1 DE 10334147 A DE10334147 A DE 10334147A DE 10334147 A DE10334147 A DE 10334147A DE 10334147 A1 DE10334147 A1 DE 10334147A1
- Authority
- DE
- Germany
- Prior art keywords
- display device
- lamp
- visible light
- image
- headlamp
- 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.)
- Withdrawn
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/33—Transforming infrared radiation
-
- 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
- B60Q2300/05—Special features for controlling or switching of the light beam
- B60Q2300/054—Variable non-standard intensity, i.e. emission of various beam intensities different from standard intensities, e.g. continuous or stepped transitions of intensity
Abstract
Description
Die Erfindung betrifft ein System zur Bilderfassung und Bilddarstellung im Infrarot- Bereich gemäß dem Oberbegriff des Anspruchs 1 und ein Verfahren unter Einsatz des Systems nach Anspruch 6.The The invention relates to a system for image acquisition and image display in the infrared range according to the preamble of claim 1 and a method using the system according to Claim 6.
Solche Systeme werden in Fahrzeugen eingesetzt, um bei schlechter Sicht wie z.B. Dunkelheit oder Nebel einem Fahrzeugführer einen Überblick über die räumlichen Gegebenheiten und über die Situation zu geben.Such Systems are used in vehicles to prevent poor visibility such as. Darkness or fog give a vehicle driver an overview of the spatial conditions and about the To give situation.
Die
Es ist bekannt, die elektrische Spannung in Fahrzeugen zu stabilisieren, um Überspannungen mit ihren schädlichen Wirkungen abzufangen. Hierfür werden Pulsweitenmodulatoren eingesetzt. Das sichtbare Licht behält hierdurch eine weitgehend konstante Helligkeit. Die Auswirkungen auf die Sicht des Fahrers durch Schwankungen der Lichtintensität sind hierbei unbedeutend.It is known to stabilize the electrical voltage in vehicles with overvoltages their harmful Intercept effects. For this will be Pulse width modulators used. The visible light keeps this way a largely constant brightness. The impact on the view of the Driver by fluctuations in light intensity are insignificant here.
Zur Zeit sind die Systeme nur mit einer Ausleuchtung durch Scheinwerfer mit Glühlampen sinnvoll einsetzbar, weil bei den anderen Scheinwerfern die verfügbare Lichtintensität nicht ausreicht. Die Systeme haben den Nachteil, dass die Qualität der bildlichen Darstellung stark schwankt und bei zu geringer Ausleuchtung die Darstellung nicht oder nur schwer erkennbar ist.to Time is the systems only with illumination by headlights with light bulbs useful, because with the other headlamps the available light intensity is not sufficient. The systems have the disadvantage that the quality of the pictorial Representation varies greatly and too low illumination the Representation is difficult or impossible to recognize.
Aufgabe der Erfindung ist es, ein System zur Bilderfassung und Bilddarstellung im Infrarot- Bereich in Kombination mit einem Scheinwerfer mit Glühlampe so zu verbessern, dass eine gleichbleibend gute Qualität der bildlichen Darstellung erzielt wird.task The invention is a system for image acquisition and image display in the infrared range in combination with a headlight with incandescent so to improve that consistently good quality of pictorial Presentation is achieved.
Die Aufgabe ist durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Dadurch, dass Mittel zur Regelung der elektrischen Spannung, die an die Glühlampe anlegbar ist, angeordnet sind, wird eine gleichmäßige Intensität des emittierten Infrarot-Lichts gewährleistet. Außerdem ist so das Spektrum des Lichts weitgehend konstant. Hierdurch wird dem Bildsensor und der anschließenden Bildnachverarbeitung, die insgesamt sehr empfindlich auf Schwankungen des Lichts reagieren und hierbei entspre chende Signale an die Anzeigevorrichtung geben, die zu einer sehr dunklen oder einer überstrahlten Anzeige führen, ein dem ausgeleuchteten Umfeld entsprechendes Licht zugeführt, das optimal die Verhältnisse in der Umgebung wiedergibt und nicht durch Lichtschwankungen beeinflußt ist. Ein Flackern des Lichts und damit der Anzeige wird vermieden; es wird eine konstant helle Anzeige erzielt.The The object is solved by the characterizing features of claim 1. Thereby, in that means for regulating the electrical voltage which can be applied to the incandescent lamp is, are arranged, a uniform intensity of the emitted Infrared light guaranteed. Furthermore So the spectrum of light is largely constant. This will be the Image sensor and the subsequent Image postprocessing, the overall very sensitive to fluctuations react to the light and this corre sponding signals to the display device which lead to a very dark or overexposed display supplied to the illuminated environment corresponding light, the optimal the conditions in the environment and is not affected by light fluctuations. A flickering of the light and thus the display is avoided; it a consistently bright display is achieved.
Mit Hilfe der Erfindung ist es weiterhin möglich, die Spannung zu der Glühlampe des Scheinwerfers zu verringern; hierdurch wird einerseits die Lebensdauer der Glühlampe erhöht. Andererseits wird das Emissionsmaximum des Scheinwerfers weiter in den Infrarot- Bereich verschoben, ohne dass die Leistung des Scheinwerfers im Infrarot-Bereich beeinträchtigt wird. Dies führt zu einem insgesamt geringeren Energieverbrauch.With Help of the invention it is still possible, the voltage to the light bulb to reduce the headlamp; This, on the one hand, extends the service life the light bulb elevated. On the other hand, the emission maximum of the headlamp continues moved to the infrared range without affecting the performance of the Headlamps in the infrared range impaired becomes. this leads to to a lower overall energy consumption.
Eine Vorrichtung zur Pulsweitenmodulation nach Anspruch 2 oder ein DC/DC- Spannungsregler nach Anspruch 3 sind einfache und geeignete Mittel zur Konstanthaltung und/oder Regelung einer elektrischen Spannung.A Apparatus for pulse width modulation according to claim 2 or a DC / DC Voltage regulator according to claim 3 are simple and suitable means for Constant maintenance and / or regulation of an electrical voltage.
Mit einem Steuergerät nach Anspruch 4 lassen sich die Komponenten des Systems aufeinander abstimmen und so die Bildqualität verbessern. Z.B. kann die Strahlungshelligkeit in Abhängigkeit von Abstand und/oder Reflexion eines angeleuchteten Objekts verändert werden.With a control unit According to claim 4, the components of the system can be coordinated and so the picture quality improve. For example, can the radiation brightness in dependence be changed by distance and / or reflection of a lighted object.
Eine Glühlampe mit einem Emissionsmaximum im Infrarot-Bereich nach Anspruch 5 vermindert störendes sichtbares Licht.A light bulb with an emission maximum in the infrared range according to claim 5 reduces disturbing visible Light.
Die Erfindung wird anhand des in der Zeichnung vereinfacht dargestellten Ausführungsbeispiels näher erläutert.The Invention will be described with reference to the drawing in simplified form Embodiment explained in more detail.
Nach
Die
Glühlampe
Der
Infrarot-Bildsensor
Die
Mittel zur Regelung
Im
Betrieb wird die Glühlampe
Der
Scheinwerfer leuchtet z.B. einen Teil eines Vorfeld des Kraftfahrzeugs
aus. Dieses ausgeleuchtete Vorfeld wird von dem Infrarot- Bildsensor
In
Zusammenspiel mit dem Steuergerät
Insbesondere
wird aber bei dunklen Verhältnissen
gezielt eine erhöhte
Spannung zur Glühlampe
Im
Zusammenspiel zwischen den Mitteln zur Regelung
Eine
weitere Möglichkeit
der Erhöhung
der Bildqualität
besteht darin, mit zunehmender Alterung der Glühlampe
Durch
eine dauernde Spannungsreduzierung unter z.B. die Nennspannung von
12 V – wobei die
oben beschriebenen Regelungsmöglichkeiten von
diesem niedrigen Wert ausgehen – oder
durch eine Taktung des Stroms wird einerseits das Emissionsmaximum
der Glühlampe
Außer der
Beeinflussung durch das Steuergerät
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10334147A DE10334147A1 (en) | 2003-07-26 | 2003-07-26 | Infra-red imaging system for automobile using headlamp with lamp and filter for blocking visible light together with IR sensor coupled to display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10334147A DE10334147A1 (en) | 2003-07-26 | 2003-07-26 | Infra-red imaging system for automobile using headlamp with lamp and filter for blocking visible light together with IR sensor coupled to display device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10334147A1 true DE10334147A1 (en) | 2005-02-17 |
Family
ID=34071925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10334147A Withdrawn DE10334147A1 (en) | 2003-07-26 | 2003-07-26 | Infra-red imaging system for automobile using headlamp with lamp and filter for blocking visible light together with IR sensor coupled to display device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10334147A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018095716A1 (en) * | 2016-11-22 | 2018-05-31 | HELLA GmbH & Co. KGaA | Generating a homogeneous light distribution according to the topography and the measured luminance |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3748383A (en) * | 1971-04-05 | 1973-07-24 | R Grossman | Camera system for day and night use |
EP0479634A1 (en) * | 1990-10-02 | 1992-04-08 | Automobiles Peugeot | Headlamp device for vehicle |
DE19518521C2 (en) * | 1995-05-19 | 1997-08-28 | Siemens Ag | Housing of a control device, in particular for a motor vehicle |
US5837994A (en) * | 1997-04-02 | 1998-11-17 | Gentex Corporation | Control system to automatically dim vehicle head lamps |
JP2000348513A (en) * | 1999-05-31 | 2000-12-15 | Stanley Electric Co Ltd | Lighting fixture for car |
US20020020804A1 (en) * | 1999-01-25 | 2002-02-21 | Bauer Fred T. | Moisture detecting system using semiconductor light sensor with integral charge collection |
US20020039295A1 (en) * | 2000-08-09 | 2002-04-04 | Koito Manufacturing Co., Ltd. | Vehicle headlamp system |
US20020195949A1 (en) * | 1998-09-18 | 2002-12-26 | Stam Joseph S. | Continuously variable headlamp control |
US20030066965A1 (en) * | 2001-09-24 | 2003-04-10 | Bjoern Abel | Night vision device for vehicles |
US20030076688A1 (en) * | 2001-10-18 | 2003-04-24 | Koito Manufacturing Co., Ltd. | Projection-type headlamp also having infrared light emitting function |
EP1376154A1 (en) * | 2002-06-12 | 2004-01-02 | Ford Global Technologies, LLC | An Active Night Vision System for a Motor Vehicle |
-
2003
- 2003-07-26 DE DE10334147A patent/DE10334147A1/en not_active Withdrawn
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3748383A (en) * | 1971-04-05 | 1973-07-24 | R Grossman | Camera system for day and night use |
EP0479634A1 (en) * | 1990-10-02 | 1992-04-08 | Automobiles Peugeot | Headlamp device for vehicle |
DE19518521C2 (en) * | 1995-05-19 | 1997-08-28 | Siemens Ag | Housing of a control device, in particular for a motor vehicle |
US5837994A (en) * | 1997-04-02 | 1998-11-17 | Gentex Corporation | Control system to automatically dim vehicle head lamps |
US5837994C1 (en) * | 1997-04-02 | 2001-10-16 | Gentex Corp | Control system to automatically dim vehicle head lamps |
US20020195949A1 (en) * | 1998-09-18 | 2002-12-26 | Stam Joseph S. | Continuously variable headlamp control |
US20020020804A1 (en) * | 1999-01-25 | 2002-02-21 | Bauer Fred T. | Moisture detecting system using semiconductor light sensor with integral charge collection |
JP2000348513A (en) * | 1999-05-31 | 2000-12-15 | Stanley Electric Co Ltd | Lighting fixture for car |
US20020039295A1 (en) * | 2000-08-09 | 2002-04-04 | Koito Manufacturing Co., Ltd. | Vehicle headlamp system |
US20030066965A1 (en) * | 2001-09-24 | 2003-04-10 | Bjoern Abel | Night vision device for vehicles |
US20030076688A1 (en) * | 2001-10-18 | 2003-04-24 | Koito Manufacturing Co., Ltd. | Projection-type headlamp also having infrared light emitting function |
EP1376154A1 (en) * | 2002-06-12 | 2004-01-02 | Ford Global Technologies, LLC | An Active Night Vision System for a Motor Vehicle |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018095716A1 (en) * | 2016-11-22 | 2018-05-31 | HELLA GmbH & Co. KGaA | Generating a homogeneous light distribution according to the topography and the measured luminance |
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Legal Events
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8141 | Disposal/no request for examination |