JPS61105245A - Car head light automatic switching device - Google Patents

Car head light automatic switching device

Info

Publication number
JPS61105245A
JPS61105245A JP59225519A JP22551984A JPS61105245A JP S61105245 A JPS61105245 A JP S61105245A JP 59225519 A JP59225519 A JP 59225519A JP 22551984 A JP22551984 A JP 22551984A JP S61105245 A JPS61105245 A JP S61105245A
Authority
JP
Japan
Prior art keywords
light
receiver
output
voltage comparator
wave length
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.)
Pending
Application number
JP59225519A
Inventor
Shigeyuki Akita
Muneaki Matsumoto
Akishi Numata
Original Assignee
Nippon Soken Inc
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 Nippon Soken Inc filed Critical Nippon Soken Inc
Priority to JP59225519A priority Critical patent/JPS61105245A/en
Publication of JPS61105245A publication Critical patent/JPS61105245A/en
Application status is Pending legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangements or adaptations of optical signalling or lighting devices
    • B60Q1/02Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14Arrangements or adaptations of optical signalling or lighting devices 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
    • B60Q1/1415Dimming circuits
    • B60Q1/1423Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/40Indexing codes relating to other road users or special conditions
    • B60Q2300/41Indexing codes relating to other road users or special conditions preceding vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/40Indexing codes relating to other road users or special conditions
    • B60Q2300/42Indexing codes relating to other road users or special conditions oncoming vehicle

Abstract

PURPOSE:To improve the controllability by detecting effectively a light from the front which is either a head light from a car running in the opposite direc tion or a tail light from a car running ahead so as to allow a head light to be automatically switched over to the low beam side. CONSTITUTION:NO.2 light receiver 10 is adapted where the receiver is composed of a condensing lens 11, a low bus optical fiber 12 which cuts off the long wave length of more than, e.g. 580nm, and of light receiving element 13 which is sensitive to the wave length, e.g. from 400-600nm. In addition, NO.1 light receiver 20 is also adapted, NO.1 receiver is composed of a condensing lens 21 and of a light receiving element 22 which is sensitive to the wave length, e.g. from 400-1,100nm. The output from NO.2 receiver 10 is inputted into a voltage comparator 70 by way of a voltage amplifier 30, a voltage comparator 40, and a variable gain voltage amplifier 60. And the output from NO.1 receiver 20 is also inputted into the voltage comparator 70 by way of a voltage amplifier 50 and a variable gain voltage amplifier 60. And when the output from the voltage comparator 70 represents a 1, a switching relay 80 is allowed to be turned on permitting a head light to be changed over to a low beam.
JP59225519A 1984-10-25 1984-10-25 Car head light automatic switching device Pending JPS61105245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59225519A JPS61105245A (en) 1984-10-25 1984-10-25 Car head light automatic switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59225519A JPS61105245A (en) 1984-10-25 1984-10-25 Car head light automatic switching device

Publications (1)

Publication Number Publication Date
JPS61105245A true JPS61105245A (en) 1986-05-23

Family

ID=16830578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59225519A Pending JPS61105245A (en) 1984-10-25 1984-10-25 Car head light automatic switching device

Country Status (1)

Country Link
JP (1) JPS61105245A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997027077A1 (en) * 1996-01-28 1997-07-31 Thomas Meierl Automatic light switch
FR2796173A1 (en) * 1999-07-06 2001-01-12 L2G Light level detector with supplementary filtering for lighting control that is less sensitive to stray light sources or weather conditions
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

Cited By (21)

* 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
WO1997027077A1 (en) * 1996-01-28 1997-07-31 Thomas Meierl Automatic light switch
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
FR2796173A1 (en) * 1999-07-06 2001-01-12 L2G Light level detector with supplementary filtering for lighting control that is less sensitive to stray light sources or weather conditions
US9436880B2 (en) 1999-08-12 2016-09-06 Magna Electronics Inc. Vehicle vision system
US9555803B2 (en) 2002-05-03 2017-01-31 Magna Electronics Inc. Driver assistance system for vehicle
US9171217B2 (en) 2002-05-03 2015-10-27 Magna Electronics Inc. Vision system for vehicle
US10118618B2 (en) 2002-05-03 2018-11-06 Magna Electronics Inc. Vehicular control system using cameras and radar sensor
US9834216B2 (en) 2002-05-03 2017-12-05 Magna Electronics Inc. Vehicular control system using cameras and radar sensor
US9643605B2 (en) 2002-05-03 2017-05-09 Magna Electronics Inc. Vision system for vehicle
US9008369B2 (en) 2004-04-15 2015-04-14 Magna Electronics Inc. Vision system for vehicle
US9609289B2 (en) 2004-04-15 2017-03-28 Magna Electronics Inc. Vision system for vehicle
US8818042B2 (en) 2004-04-15 2014-08-26 Magna Electronics Inc. Driver assistance system for vehicle
US9736435B2 (en) 2004-04-15 2017-08-15 Magna Electronics Inc. Vision system for vehicle
US9428192B2 (en) 2004-04-15 2016-08-30 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
US9191634B2 (en) 2004-04-15 2015-11-17 Magna Electronics Inc. Vision system for vehicle
US10187615B1 (en) 2004-04-15 2019-01-22 Magna Electronics Inc. Vehicular control system
US10071676B2 (en) 2006-08-11 2018-09-11 Magna Electronics Inc. Vision system for vehicle

Similar Documents

Publication Publication Date Title
WO2000022881A3 (en) Ambient light sensor
JPS60139545A (en) Driving device for dazzle-proof type reflection mirror of vehicle
EP0356123A3 (en) Control circuit for a video camera
JPS54143659A (en) Image forming optical system for semiconductor laser
EP1215528A3 (en) Optical switch having a saturable absorber
JPS5698012A (en) Amplitude limiting circuit
JPH0239015A (en) Automatic light controller for endoscope
JPH03166782A (en) Active fiber-type optical amplifier
SE7714000L (en) With optical warning means equipped ski pole
JPH03239231A (en) Optical switch
DE3041692A1 (en) Vehicle rear-view mirror - has antidazzle shutter moving in response to photodetector, detecting vehicle approaching from behind
JPS57135534A (en) Transmitter and receiver for space traveling light
JPH03206427A (en) Fiber type optical amplifier
DE3105283A1 (en) Lens system having a focusing section
JPH04360105A (en) Spot width converter for optical wave
SE8202030L (en) Device for the detection of multi-frequency signals
FR2571148B1 (en) Detector light beam has a photodiode control circuit operating point
EP0330457A3 (en) Optical in line filters
JPS6443982A (en) Active t connector
JPS62119993A (en) Semiconductor laser stabilizer
GB2128431B (en) Improvements in or relating to audio power amplifiers with automatic adjustment of output stage bias current
JPH03153448A (en) Retarding device for vehicle
JPS5257825A (en) Automatic focus control device
JPS53131835A (en) Reflecting objective lens
JPS60206746A (en) Visibility improving device