GB1529523A - Automatic vehicle lighting unit - Google Patents

Automatic vehicle lighting unit

Info

Publication number
GB1529523A
GB1529523A GB30755/76A GB3075576A GB1529523A GB 1529523 A GB1529523 A GB 1529523A GB 30755/76 A GB30755/76 A GB 30755/76A GB 3075576 A GB3075576 A GB 3075576A GB 1529523 A GB1529523 A GB 1529523A
Authority
GB
United Kingdom
Prior art keywords
relay
vehicle
vehicle lighting
energized
timer
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
GB30755/76A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB30755/76A priority Critical patent/GB1529523A/en
Publication of GB1529523A publication Critical patent/GB1529523A/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
    • B60Q2300/30—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

Landscapes

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

Abstract

1529523 Vehicle lighting control J F MCGOWAN 24 Oct 1977 [23 July 1976] 30755/76 Heading G1A Vehicle lighting is controlled by a pholo-electric switching circuit coupled to a timer using integrated circuitry comprising a multi-vibrator and two voltage comparators to introduce a delay before switching back to the original lighting condition. A photo-resistor (c) responds to a drop in ambient intensity e.g. due to fog, low visibility &c. to switch, via an integrated circuit amplifier and a transistor (H), a first relay. This switches a second relay to energize the dipped headlamps. When the vehicle emerges from the low visibility zone and ambient illumination increases, the first relay switches off and starts the timer, so that there is a delay before the second relay is de-energized and the vehicle lamps de-energized. The delay period is set by an R.C. circuit K, N associated with the integrated circuit NE555 and is preferably in the region of one minute. An override switch and operator indication lamp are provided.
GB30755/76A 1977-10-24 1977-10-24 Automatic vehicle lighting unit Expired GB1529523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB30755/76A GB1529523A (en) 1977-10-24 1977-10-24 Automatic vehicle lighting unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30755/76A GB1529523A (en) 1977-10-24 1977-10-24 Automatic vehicle lighting unit

Publications (1)

Publication Number Publication Date
GB1529523A true GB1529523A (en) 1978-10-25

Family

ID=10312633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30755/76A Expired GB1529523A (en) 1977-10-24 1977-10-24 Automatic vehicle lighting unit

Country Status (1)

Country Link
GB (1) GB1529523A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055227A1 (en) * 1980-12-19 1982-06-30 Giuseppe Di Fazio Automatic headlight beam switching device for automotive vehicles
EP0176615A1 (en) * 1984-10-03 1986-04-09 In-Kun Kim Apparatus for controlling the light of the headlights of a vehicle
GB2204946A (en) * 1987-05-18 1988-11-23 Stephen George Marland Automatic vehicle light switch
GB2237631A (en) * 1989-11-04 1991-05-08 Frank Bennett Vehicle light sensor
GB2246429A (en) * 1990-06-12 1992-01-29 Paul Angus Duncan Automatic vehicle light switching system
GB2308653A (en) * 1995-12-22 1997-07-02 Robert Renton Automatic vehicle light activation system
WO1998052788A2 (en) * 1997-05-22 1998-11-26 Mun Chor Chow Vehicle headlamp controller
GB2361530A (en) * 2000-01-13 2001-10-24 Ernest Anthony Shackleton Automatic automobile sidelight/headlight sensor switch
DE10234954B4 (en) * 2001-08-01 2007-09-06 Lear Corp., Southfield Headlamp module with integrated photocell
CN102692941A (en) * 2012-06-01 2012-09-26 吉林大学 Self-adaptive control device of optical characteristic point light intensity

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055227A1 (en) * 1980-12-19 1982-06-30 Giuseppe Di Fazio Automatic headlight beam switching device for automotive vehicles
EP0176615A1 (en) * 1984-10-03 1986-04-09 In-Kun Kim Apparatus for controlling the light of the headlights of a vehicle
GB2204946A (en) * 1987-05-18 1988-11-23 Stephen George Marland Automatic vehicle light switch
GB2237631A (en) * 1989-11-04 1991-05-08 Frank Bennett Vehicle light sensor
GB2246429A (en) * 1990-06-12 1992-01-29 Paul Angus Duncan Automatic vehicle light switching system
GB2308653A (en) * 1995-12-22 1997-07-02 Robert Renton Automatic vehicle light activation system
WO1998052788A2 (en) * 1997-05-22 1998-11-26 Mun Chor Chow Vehicle headlamp controller
WO1998052788A3 (en) * 1997-05-22 1999-06-24 Mun Chor Chow Vehicle headlamp controller
GB2361530A (en) * 2000-01-13 2001-10-24 Ernest Anthony Shackleton Automatic automobile sidelight/headlight sensor switch
DE10234954B4 (en) * 2001-08-01 2007-09-06 Lear Corp., Southfield Headlamp module with integrated photocell
CN102692941A (en) * 2012-06-01 2012-09-26 吉林大学 Self-adaptive control device of optical characteristic point light intensity

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee