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WO1993010550A1 - Commutateur actionne par la lumiere - Google Patents

Commutateur actionne par la lumiere Download PDF

Info

Publication number
WO1993010550A1
WO1993010550A1 PCT/GB1992/002150 GB9202150W WO9310550A1 WO 1993010550 A1 WO1993010550 A1 WO 1993010550A1 GB 9202150 W GB9202150 W GB 9202150W WO 9310550 A1 WO9310550 A1 WO 9310550A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
switch
sensor
value
comparator
Prior art date
Application number
PCT/GB1992/002150
Other languages
English (en)
Inventor
Laszlo Hamar
Original Assignee
Laszlo Hamar
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 Laszlo Hamar filed Critical Laszlo Hamar
Publication of WO1993010550A1 publication Critical patent/WO1993010550A1/fr
Priority to GB9410176A priority Critical patent/GB9410176D0/en

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
    • 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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/48—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for parking purposes
    • B60Q1/486—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for parking purposes for indicating that vehicle is in a parked state
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/30—Modifications for providing a predetermined threshold before switching
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • H03K17/795—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • 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
    • B60Q2300/052—Switching delay, i.e. the beam is not switched or changed instantaneously upon occurrence of a condition change
    • 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
    • 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
    • B60Q2300/40—Indexing codes relating to other road users or special conditions
    • B60Q2300/43—Indexing codes relating to other road users or special conditions following vehicle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Definitions

  • This invention relates to a light operated switch which can be used to operate a warning light on a motor vehicle so as to be effective only when such warning is required by the approach of another vehicle.
  • Warning lights intended, for example, to warn or otherwise indicate the presence of a stationary vehicle for other road users are already known. Commonly, these lights are wired into a vehicles primary ignition circuitry and must be left in either an "on” or “off” condition. A problem inherent in this arrangement is that when a vehicle is left unattended for long periods of time, a light left in "on” condition may drain a large proportion of the battery capability, thus leaving insufficient charge to start a vehicles engine.
  • warning light can only be left fully on or fully off for all its operable periods.
  • the warning light is not responsive to a change in visibility conditions which may require its use, after it had been initially placed in an off condition, or alternatively, the warning light will not be switched off where its use is no longer required due to an absence of traffic in the vicinity of the vehicle or an improvement in ambient light conditions.
  • the present invention provides a light operated switch including a light sensor connected to a lighting arrangement such that the lighting arrangement will be operated only when the sensor detects a change in ambient light which change exceeds a pre-determined threshold value.
  • the light sensor may be a light dependent resistor or a photo-transistor.
  • the sensitivity of the resistor has a variable value so that the sensor can be adjusted for range and variants in ambient light conditions.
  • a vehicle provided with a warning light controlled by a light operated switch may be left in a parked condition with the arrangement switched on and with minimal power drain.
  • the lighting arrangements will be activated as a warning when the presence of an approaching vehicle is detected by the inpingement of light on the light sensor.
  • the lighting arrangement proposed is not in use at all times and is directly responsive to the amount of traffic passing the parked vehicle.
  • a vehicle warning light arrangement comprises a light sensor located at the rear of the vehicle and connected by switching means to the vehicles existing lighting arrangement, the switching means being effective to operate the lighting arrangement only when the lighting sensor detects a light source directed towards the sensor.
  • the warning light arrangement makes use of the vehicles existing light array, for example, side lights or brake lights which are thereby caused to be actuated when the sensor is operated.
  • a time delay mechanism is provided within the light operated switch means such that operation of the lighting arrangement will be maintained for a pre ⁇ determined short period of time after the light source is no longer directed towards the light sensor. In this way, if any sudden or temporary obscuration of the light source will not automatically result in switching off of the lighting array.
  • the vehicles lighting arrangements are actuated by operation of the switching means such that the vehicle is illuminated in all directions.
  • a combined vehicle warning light arrangement comprising a housing enclosing a light sensor and a lighting arrangement, the arrangement and the sensor being connected by switching means operative to activate the lighting arrangement only when the sensor is acted upon by an external light source.
  • the enclosed unit may be mounted in the rear front vehicle as desired and in a manner similar to that for the mounting of known additional brake light units.
  • the housing can be mounted on the vehicles exterior. However, this would make it vulnerable to external forces, for example, collisions and also to theft or similar actions.
  • the arrangement preferably includes a comparator having an initially pre-set light value which will cause the light to be switched on when the value is exceeded.
  • the comparator also preferably includes means to adjust the pre ⁇ set value, to preferably equal a light value sensed by the sensor, when the original pre-set value is exceeded for a pre-determined time period.
  • the comparator also includes means to re-set the light value to its original pre-set value when the sensed light value falls below the current pre-set value for a pre-determined time period.
  • a first practical embodiment of the invention provides a light operated switch in four sections, a first section including two photo-transistors used as sensors, connected to a second section including amplifier means and comparator means operative to compare a signal received from the photo- transistors with a pre-determined threshold value and, if this is exceeded, to transmit that signal to a third section including a timer and a threshold modifier operative to increase or decrease the threshold value according to the magnitude of the signal received by the photo-transistors, and a fourth section operative to output a signal to a lighting arrangement to activate same so as to act as a warning indication.
  • FIG. 1 is a block diagram of a first preferred embodiment of the invention
  • Fig. 2 is a circuit diagram of a practical embodiment of the invention.
  • Fig. 3 is a circuit diagram of a second practical embodiment of the invention.
  • a preferred embodiment of the invention provides a light operated switch adapted for use as a vehicle warning light arrangement 10 including a light sensitive sensor 12, for example, a light sensitive diode, photo-transistor or other similar light sensitive detector, operative to measure the amount of light inpinging on the sensor and produce an electrical signal proportional to that sensed light value.
  • the sensor 12 is connected to an enabled switch 14 which enable the system operator to determine whether this system is in an on or off mode.
  • the sensor 12 is further connected to switching means 16 which is connected to a battery 18 which may be the vehicles own normal battery source or may be a supplementary battery connected solely to this arrangement.
  • the switching means 16 are also connected to at least one lighting arrangement or array 20, 22.
  • this lighting arrangement is an additional light intended solely for the purpose of warning other vehicles of the presence of a stationary vehicle.
  • the light 20 may be the vehicles only existing lights, for example, side lights, rear lights or brake lights etc.
  • the enables switch 14 operated so as to activate the systeme, the sensor 12 is operative to detect the lights of any vehicle approaching the sensor. When such an approach is detected, the sensor 12 operates the switching means 16 enabling the lighting arrangement 20 to draw power from the battery 18 and hence illuminate the parked vehicle. Although the enable switch 14 for the sensor will be activated for the entirety of the period during which the vehicle is parked, the battery 18 will not be required to power the light of lights 20, 22 for this full time period and hence battery charge will be conserved.
  • the switching means also includes a comparator 24 which compares the light value measured by the sensor 12 with a pre-determined value stored in the comparator 24.
  • the pre ⁇ determined value is preferably set by external controller (not shown) such that adjustments can be made for a required range and for variance in ambient light conditions. If the sensors measured value exceeds the pre-determined value, the comparator 24 actuates a second switch 26 which in turn operates the light array 20, 22 to illuminate to parked vehicle.
  • the comparator preferably also includes a timing unit 28 which will measure the time period for which the measured light value exceeds the pre-set value. Where this time period exceeds a pre-determined period, for example, 30 seconds, the timing unit 28 generates an output to the comparator 24 so as to reset the pre-determined light value stored therein to a new value equal to the current measured value. In this way, a relatively long term increase in light received by the sensor 12 will not cause the arrangement to be permanently
  • the switching means 16 will also include a second comparator 30 which also receives the outpiitted measured light value from the sensor 12.
  • This second comparator 30 is activated when the pre-set value of the first comparator 24 is altered and is operative to compare the measured light value with the original pre ⁇ determined stored value.
  • the second comparator 30 acts to re-set the value stored in the first comparator 24 to its original level.
  • the vehicle warning light arrangement in two alternative embodiments.
  • the entire system, sensor 12, enables switch 14, switching means 16, battery 18 and lights 20 may be provided in a casing or housing (not shown) which is provided with fixing means for attachment to a vehicle.
  • a self contained assembly could be mounted inside the rear window of a vehicle or to its rear bumper.
  • the senor means could be mounted at a position remote from the lighting arrangement and its associated switching means, for example, the sensor could be provided on or adjacent to the vehicles bumper or inside the rear window of a vehicle and attached to the vehicles normal lighting array.
  • the sensor and the light could draw power from the vehicles own battery and this would of course, simplify connection of the system to the vehicles existing electrical system.
  • the vehicle warning light arrangement provides a system which is both responsive to traffic conditions and light conditions and is operative to conserve battery charge during periods when illumination of the vehicle is not required.
  • a circuit 40 for a warning light includes a power input 41 connected to an amplifier circuit referred to generally by reference numeral 46.
  • the amplifier circuit 46 includes first and second resistors 48, 50 and a first transistor 52 connected to two photo-transistors 42, 44. This arrangement ensures that any light differential sent by the photo- transistors 42, 44, causes an output to be generated at one pin of the first transistor 52.
  • a first compasistor 54 allows this output signal to pass only if it has a varying amplitude, i.e. is respectively an increase or decrease of the value with respect to an ambient light value.
  • a second amplifier/comparator circuit 50 then passes a signal to a second transistor 58. This responds to such signals by providing an output only if the signal is of sufficient magnitude with respect to two resistors 60, 62.
  • the longitude of the signal modification is determined by the third resistor 64 and a further capacitor 66 is also provided to maintain signal stability.
  • the output from the second transistor 58 passes through a second diode 68 to a fourth capacitor 70.
  • this output is passed through a third transistor 72 so as to bias one pin thereof to positive.
  • the threshold of this transistor 72 is determined by the values of two respective resistors 74, 76 connected thereto. When this threshold is exceeded, the transistors output pin is forced low which status permits until the fourth capacitor 70 has discharged to a low charge level which time is determined by the relative values of resistors 74, 76. When the voltage across the fourth capacitor has fallen below this threshold, the output pin of the transistor 72 is forced high and held there by a sixth resistor 78.
  • the signal is passed to an output transistor 80 which is held in an off condition by the sixth resistor 78 until the output pin of the third transistor 72 is forced low. At this time, the output transistor is switched on and its subsequent load (light array 82) energised for a duration determined by the discharge time of the fourth capacitor 70.
  • the system can respond to fast changes in light levels as monitored by the two photo-transistors. These changes can be a relative increase or decrease with respect ambient light, provided that the change has sufficient absolute magnitude and time dependent rate of change.
  • the invention can react to a further change in light level even when the output transistor 80 is energising the load 82. Further by providing photo-transistors which are sensitive to infra-red light, the system can react even in fog or other conditions of normally low or restrictive visability.
  • a second practical embodiment of the invention is shown in Fig. 3. Similar parts are referred to by identical reference numerals and the modified circuit 90 for a warning light includes a power input 41 connected to an amplifier circuit referred to generally by the number 46.
  • the amplified 46 includes first and second resistors 48, 50 and a first transistor 52 connected to a light dependent resistor 42.
  • the first resistor 48 also has a capacitor 44 connected between resistor 48 and a negative rail.
  • This capacitor 44 slows the rate at which the light dependent resistor 42 rises and falls in resistance (controls the sensitivity). This arrangement therefore ensures that any light differential sensed by the light dependent resistor 42 causes an output to be generated at one pin of the first transistor 52.
  • a capacitor 54 allows its output signal to pass only if it has a varying amplitude, i.e. it is respectively an increase or decrease with respect to ambient light.
  • a second transistor 58 receives a signal passed on by the capacitor 54.
  • Transistor 58 is wired as a comparator circuit with two resistors 60. 62 both of which are connected to the negative rail.
  • the output from the second transistor 58 passes through a second diode 68 to a third capacitor 70. Operation and wiring of this further arrangement as are previously described for Fig. 2.
  • This modified circuit is that it can be activated in normal daylight without the need for a separate switch to turn it on. This is due to the fact that the circuit becomes more sensitive in day time light conditions.
  • the switch may be applied to a childrens safety device in the form of a badge or patch which will react to light received, e.g. from a car's headlights at night. In this way, children will be made easily visible by oncoming traffic in otherwise poor visibility conditions.
  • the safety device will incorporate its own lighting arrangement and power source, e.g. battery. Similar use as an advertising device is also possible.
  • a further use for such a light operated switch is in connection with a childrens toy or comforter.
  • the light operated switch will normally be connected so as to operate a lighting arrangement when the switch detects an absence of lights.
  • Ths lighting arragement preferably comprises or includes such a toys eyes where it represents an animal, e.g. a bear.
  • the senor 12 may be any convenient detector operative to sense the presence of an approaching vehicle, thus an ultrasonic or radar type sensor system may be used as an alterative light dependent sensor.
  • the invention can also be used on caravans or trailer or on stationary road signs where periodic illumination is desirable. Other variations are also possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

L'invention concerne un commutateur actionné par la lumière qui, dans une première forme d'exécution, est prévu pour les feux clignotants/feux de stationnement (10) de véhicules. Le commutateur comprend un détecteur sensible à la lumière, par exemple une diode ou une résistance sensibles à la lumière (12), qui fournit un signal électrique proportionnel à l'intensité de la lumière détectée, pour permettre à un commutateur (14) de mettre le système en service ou hors service par connexion à une batterie (18). Le moyen de commutation (16) reçoit le signal du détecteur et le dirige sur un comparateur (24), qui le compare avec une valeur prédéterminée et enregistrée. Lorsque cette valeur est dépassée, un second commutateur (26) fonctionne pour mettre en service le dispositif lumineux (20, 22). De préférence, une minuterie (28) mesure le temps durant lequel la lumière dépasse la valeur prédéterminée. La valeur prédéterminée est enregistrée dans le comparateur (24) et elle est ajustable, pour compenser. Le commutateur actionné par la lumière peut également être utilisé pour un jouet ou un dispositif de sécurité.
PCT/GB1992/002150 1991-11-20 1992-11-20 Commutateur actionne par la lumiere WO1993010550A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9410176A GB9410176D0 (en) 1991-11-20 1994-05-20 Light operated switch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919124562A GB9124562D0 (en) 1991-11-20 1991-11-20 Warning light
GB9124562.1 1991-11-20

Publications (1)

Publication Number Publication Date
WO1993010550A1 true WO1993010550A1 (fr) 1993-05-27

Family

ID=10704872

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/002150 WO1993010550A1 (fr) 1991-11-20 1992-11-20 Commutateur actionne par la lumiere

Country Status (3)

Country Link
AU (1) AU2949992A (fr)
GB (2) GB9124562D0 (fr)
WO (1) WO1993010550A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5663705A (en) * 1993-12-08 1997-09-02 Pretorius; Gerhard W. Vehicle safety device
EP1950089A1 (fr) * 2007-01-23 2008-07-30 Delphi Technologies, Inc. Eclairage de véhicule
US8818042B2 (en) 2004-04-15 2014-08-26 Magna Electronics Inc. Driver assistance system for vehicle
US8842176B2 (en) 1996-05-22 2014-09-23 Donnelly Corporation Automatic vehicle exterior light control
US8917169B2 (en) 1993-02-26 2014-12-23 Magna Electronics Inc. Vehicular vision system
US8993951B2 (en) 1996-03-25 2015-03-31 Magna Electronics Inc. Driver assistance system for a vehicle
US9171217B2 (en) 2002-05-03 2015-10-27 Magna Electronics Inc. Vision system for vehicle
US9436880B2 (en) 1999-08-12 2016-09-06 Magna Electronics Inc. Vehicle vision system
US10071676B2 (en) 2006-08-11 2018-09-11 Magna Electronics Inc. Vision system for vehicle
EP3092870B1 (fr) 2014-01-08 2019-02-20 Philips Lighting Holding B.V. Procédés et appareil de commande d'éclairage basée sur une variation d'éclairage détectée

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DE2527877B2 (de) * 1975-06-23 1977-08-04 Krone Gmbh, 1000 Berlin Steuereinrichtung zum selbsttaetigen schalten von leuchten
US4249160A (en) * 1975-11-21 1981-02-03 Chilvers Graham R Vehicle mounted light activated control system
EP0072406A2 (fr) * 1981-08-14 1983-02-23 KRONE GmbH Dispositif pour allumer ou éteindre les feux automatiquement
DD209152A1 (de) * 1982-08-02 1984-04-25 Harald Diessner Auffahrwarnsystem fuer fahrzeuge
US4665321A (en) * 1985-08-14 1987-05-12 Kwangling Chang Automatic control system for automobile lights
GB2231274A (en) * 1989-05-12 1990-11-14 Peter Dimitrios Poullos Child's dummy

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2527877B2 (de) * 1975-06-23 1977-08-04 Krone Gmbh, 1000 Berlin Steuereinrichtung zum selbsttaetigen schalten von leuchten
US4249160A (en) * 1975-11-21 1981-02-03 Chilvers Graham R Vehicle mounted light activated control system
EP0072406A2 (fr) * 1981-08-14 1983-02-23 KRONE GmbH Dispositif pour allumer ou éteindre les feux automatiquement
DD209152A1 (de) * 1982-08-02 1984-04-25 Harald Diessner Auffahrwarnsystem fuer fahrzeuge
US4665321A (en) * 1985-08-14 1987-05-12 Kwangling Chang Automatic control system for automobile lights
GB2231274A (en) * 1989-05-12 1990-11-14 Peter Dimitrios Poullos Child's dummy

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8917169B2 (en) 1993-02-26 2014-12-23 Magna Electronics Inc. Vehicular vision system
US5663705A (en) * 1993-12-08 1997-09-02 Pretorius; Gerhard W. Vehicle safety device
US8993951B2 (en) 1996-03-25 2015-03-31 Magna Electronics Inc. Driver assistance system for a vehicle
US8842176B2 (en) 1996-05-22 2014-09-23 Donnelly Corporation Automatic vehicle exterior light control
US9436880B2 (en) 1999-08-12 2016-09-06 Magna Electronics Inc. Vehicle vision system
US10683008B2 (en) 2002-05-03 2020-06-16 Magna Electronics Inc. Vehicular driving assist system using forward-viewing camera
US9643605B2 (en) 2002-05-03 2017-05-09 Magna Electronics Inc. Vision system for vehicle
US9171217B2 (en) 2002-05-03 2015-10-27 Magna Electronics Inc. Vision system for vehicle
US10351135B2 (en) 2002-05-03 2019-07-16 Magna Electronics Inc. Vehicular control system using cameras and radar sensor
US10118618B2 (en) 2002-05-03 2018-11-06 Magna Electronics Inc. Vehicular control system using cameras and radar sensor
US11203340B2 (en) 2002-05-03 2021-12-21 Magna Electronics Inc. Vehicular vision system using side-viewing camera
US9555803B2 (en) 2002-05-03 2017-01-31 Magna Electronics Inc. Driver assistance system for vehicle
US9834216B2 (en) 2002-05-03 2017-12-05 Magna Electronics Inc. Vehicular control system using cameras and radar sensor
US10735695B2 (en) 2004-04-15 2020-08-04 Magna Electronics Inc. Vehicular control system with traffic lane detection
US9191634B2 (en) 2004-04-15 2015-11-17 Magna Electronics Inc. Vision system for vehicle
US9609289B2 (en) 2004-04-15 2017-03-28 Magna Electronics Inc. Vision system for vehicle
US9948904B2 (en) 2004-04-15 2018-04-17 Magna Electronics Inc. Vision system for vehicle
US10015452B1 (en) 2004-04-15 2018-07-03 Magna Electronics Inc. Vehicular control system
US11847836B2 (en) 2004-04-15 2023-12-19 Magna Electronics Inc. Vehicular control system with road curvature determination
US10110860B1 (en) 2004-04-15 2018-10-23 Magna Electronics Inc. Vehicular control system
US9428192B2 (en) 2004-04-15 2016-08-30 Magna Electronics Inc. Vision system for vehicle
US10187615B1 (en) 2004-04-15 2019-01-22 Magna Electronics Inc. Vehicular control system
US11503253B2 (en) 2004-04-15 2022-11-15 Magna Electronics Inc. Vehicular control system with traffic lane detection
US10306190B1 (en) 2004-04-15 2019-05-28 Magna Electronics Inc. Vehicular control system
US9736435B2 (en) 2004-04-15 2017-08-15 Magna Electronics Inc. Vision system for vehicle
US10462426B2 (en) 2004-04-15 2019-10-29 Magna Electronics Inc. Vehicular control system
US9008369B2 (en) 2004-04-15 2015-04-14 Magna Electronics Inc. Vision system for vehicle
US8818042B2 (en) 2004-04-15 2014-08-26 Magna Electronics Inc. Driver assistance system for vehicle
US10787116B2 (en) 2006-08-11 2020-09-29 Magna Electronics Inc. Adaptive forward lighting system for vehicle comprising a control that adjusts the headlamp beam in response to processing of image data captured by a camera
US11148583B2 (en) 2006-08-11 2021-10-19 Magna Electronics Inc. Vehicular forward viewing image capture system
US11396257B2 (en) 2006-08-11 2022-07-26 Magna Electronics Inc. Vehicular forward viewing image capture system
US11623559B2 (en) 2006-08-11 2023-04-11 Magna Electronics Inc. Vehicular forward viewing image capture system
US10071676B2 (en) 2006-08-11 2018-09-11 Magna Electronics Inc. Vision system for vehicle
US11951900B2 (en) 2006-08-11 2024-04-09 Magna Electronics Inc. Vehicular forward viewing image capture system
EP1950089A1 (fr) * 2007-01-23 2008-07-30 Delphi Technologies, Inc. Eclairage de véhicule
EP3092870B1 (fr) 2014-01-08 2019-02-20 Philips Lighting Holding B.V. Procédés et appareil de commande d'éclairage basée sur une variation d'éclairage détectée

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AU2949992A (en) 1993-06-15
GB9124562D0 (en) 1992-01-08
GB9410176D0 (en) 1994-07-20

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