GB888157A - Improvements in or relating to systems for automatically dimming vehicle headlights - Google Patents

Improvements in or relating to systems for automatically dimming vehicle headlights

Info

Publication number
GB888157A
GB888157A GB3599159A GB3599159A GB888157A GB 888157 A GB888157 A GB 888157A GB 3599159 A GB3599159 A GB 3599159A GB 3599159 A GB3599159 A GB 3599159A GB 888157 A GB888157 A GB 888157A
Authority
GB
United Kingdom
Prior art keywords
relating
systems
low
vehicle headlights
photoresistance
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.)
Expired
Application number
GB3599159A
Inventor
Bernard Harry Noyes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kismet Ltd
Original Assignee
Kismet Ltd
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 Kismet Ltd filed Critical Kismet Ltd
Priority to GB3599159A priority Critical patent/GB888157A/en
Publication of GB888157A publication Critical patent/GB888157A/en
Expired legal-status Critical Current

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
    • 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
    • B60Q2300/40—Indexing codes relating to other road users or special conditions
    • B60Q2300/42—Indexing codes relating to other road users or special conditions oncoming vehicle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

888,157. Photo-electric control of vehicle headlamps. KISMET Ltd. Oct. 24, 1960 [Oct. 23, 1959], No. 35991/59. Class 40(3). An automatic headlamp dipping system in which a photoresistance operates a relay, includes means for selecting high or low beams at will. With the switch 13 in position 15, illumination of the photoresistance 2 causes a transistor TR2 to pass current, energising the relay 9 to switch to low beam. Resistor R1 and capacitor Cl reduce the delay in switching back to high beam on removal. of illumination. At any time the arm 17 may be moved to either of positions 14 or 16 which provide low and high beams respectively. The Provisional Specification describes a circuit using only one transistor and with no R1, C1 network.
GB3599159A 1959-10-23 1959-10-23 Improvements in or relating to systems for automatically dimming vehicle headlights Expired GB888157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3599159A GB888157A (en) 1959-10-23 1959-10-23 Improvements in or relating to systems for automatically dimming vehicle headlights

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3599159A GB888157A (en) 1959-10-23 1959-10-23 Improvements in or relating to systems for automatically dimming vehicle headlights

Publications (1)

Publication Number Publication Date
GB888157A true GB888157A (en) 1962-01-24

Family

ID=10383773

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3599159A Expired GB888157A (en) 1959-10-23 1959-10-23 Improvements in or relating to systems for automatically dimming vehicle headlights

Country Status (1)

Country Link
GB (1) GB888157A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133532A (en) * 1983-01-10 1984-07-25 Guilherme Ysenbout Mogas Light sensitive switch
GB2135771A (en) * 1983-02-23 1984-09-05 Lutron Electronics Co Excess light turn-off circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133532A (en) * 1983-01-10 1984-07-25 Guilherme Ysenbout Mogas Light sensitive switch
GB2135771A (en) * 1983-02-23 1984-09-05 Lutron Electronics Co Excess light turn-off circuit

Similar Documents

Publication Publication Date Title
GB914828A (en) Improvements in or relating to automatic headlight control systems
GB888157A (en) Improvements in or relating to systems for automatically dimming vehicle headlights
GB1094260A (en) Vehicle headlight signal system
US2825851A (en) Control circuit
GB1529523A (en) Automatic vehicle lighting unit
GB901728A (en) Control device for a headlight system
GB1270667A (en) Lighting systems for road vehicles
FR2311687A1 (en) Automatic electronic headlights dimming appts. - has photoelectric cells illuminated by lights of oncoming traffic, and photoresistance maintaining dip
SE8702743L (en) STYRDON DRIVES A MAIN LIGHT CIRCUIT ON A MOTOR VEHICLE
JPS5216883A (en) Illuminator control unit
GB1485879A (en) Vehicle head lamp systems
FR2267627A1 (en) Automatic control for dipping headlights - having time delay circuit operating with light intensity monitoring photocell
GB923167A (en) Improvements in or relating to switching systems for the electric lighting installations of mechanically propelled vehicles
GB1010201A (en) Light sensitive circuits
AU275457B2 (en) Automatic headlight beam switching device for vehicles
GB1204661A (en) Control unit for road vehicle lamps
ES310973A1 (en) An automatic control device of the headlights of an automobile vehicle. (Machine-translation by Google Translate, not legally binding)
GB746126A (en) Improvements relating to electrical systems for automatically dimming automobile headlamps
GB1092712A (en) Lighting systems for road vehicles
GB987931A (en) Automatic headlight control equipment
ES348690A1 (en) Improvements in the electronic systems for automatic change of lights in the vehicles automóviles. (Machine-translation by Google Translate, not legally binding)
ES255261A1 (en) Improvements in dispatches against differentiation in cross cars (Machine-translation by Google Translate, not legally binding)
ES228781A1 (en) New system to improve the night vision of vehicle drivers (Machine-translation by Google Translate, not legally binding)
GB965076A (en) Improvements in lighting systems for road vehicles
GB959554A (en) Control means for vehicle headlamps