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GB1392998A - Vehicle lighting control device - Google Patents

Vehicle lighting control device

Info

Publication number
GB1392998A
GB1392998A GB4940472A GB4940472A GB1392998A GB 1392998 A GB1392998 A GB 1392998A GB 4940472 A GB4940472 A GB 4940472A GB 4940472 A GB4940472 A GB 4940472A GB 1392998 A GB1392998 A GB 1392998A
Authority
GB
United Kingdom
Prior art keywords
windscreen
light
glass
oct
photo
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
GB4940472A
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.)
Saint Gobain Industries SA
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Industries SA
Compagnie de Saint Gobain SA
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 Saint Gobain Industries SA, Compagnie de Saint Gobain SA filed Critical Saint Gobain Industries SA
Publication of GB1392998A publication Critical patent/GB1392998A/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
    • B60Q2300/314—Ambient light

Landscapes

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

Abstract

1392998 Vehicle side light control SAINT GOBAIN INDUSTRIES 26 Oct 1972 [27 Oct 1971] 49404/72 Heading G1A In a control system for controlling vehicle side lights according to the ambient light level a photosensitive element E, positioned in a hole or slot 20 at the edge of a windscreen 110, is in direct optical communication with the material of the windscreen by being embedded in a mastic 24 having the same refractive index as the glass its optical axis (or field of view) being directed through the material of the windscreen in a direction parallel to the surfaces of the glass. The photo-sensitive element E is covered by the windscreen frame 14 and in use it receives a fraction L of the total light impinging on the whole of the exposed area of the windscreen. The photo-sensitive element's output is amplified Fig. 6 (not shown) and fed to a control circuit which activates a relay turning on the side lights when the light intensity received falls below a predetermined level. The control circuit turns off the light when the intensity of the light received passes a second higher predetermined level. Several embodiments, Figs. 3, 4 and 5 (not shown) are disclosed dealing with tougher glass and layered safety glass.
GB4940472A 1971-10-27 1972-10-26 Vehicle lighting control device Expired GB1392998A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT30416/71A IT939130B (en) 1971-10-27 1971-10-27 PERFECTED SYSTEM FOR AUTOMATIC SWITCHING ON AND OFF OF CAR EXTERIOR LIGHTS WITH INDIRECT EXCITATION PHOTOSENSITIVE ELEMENT

Publications (1)

Publication Number Publication Date
GB1392998A true GB1392998A (en) 1975-05-07

Family

ID=11229723

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4940472A Expired GB1392998A (en) 1971-10-27 1972-10-26 Vehicle lighting control device

Country Status (14)

Country Link
US (1) US3821593A (en)
AR (1) AR194136A1 (en)
AT (1) AT329386B (en)
AU (1) AU477076B2 (en)
BE (1) BE790603A (en)
BR (1) BR7207520D0 (en)
CA (1) CA988992A (en)
DE (1) DE2252914C3 (en)
ES (1) ES408005A1 (en)
FR (1) FR2157901B1 (en)
GB (1) GB1392998A (en)
IT (1) IT939130B (en)
NL (1) NL7214471A (en)
SE (1) SE389304B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237106A (en) * 1989-07-10 1991-04-24 Brendan James Price Vehicle light management system
EP1112199B2 (en) † 1998-09-18 2016-08-17 Gentex Corporation Continuously variable headlamp control

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5610211B2 (en) * 1973-10-19 1981-03-06
EP0009414B1 (en) * 1978-09-25 1984-04-25 Raymond James Noack Apparatus and method for controlling windscreen wiper and windscreen washer apparatus of a vehicle
DE3409497A1 (en) * 1984-03-15 1985-09-19 Siegfried 6751 Krickenbach Gruber Device for automatically switching on and off the light system of a vehicle
FR2571320B1 (en) * 1984-10-04 1987-01-30 Saint Gobain Vitrage IMPROVED SHEET GLAZING WITH INCORPORATED PHOTOSENSITIVE ELEMENT AND AUTOMATIC LIGHTING AND EXTINGUISHING DEVICE OF LIGHTS OF A MOTOR VEHICLE INCLUDING APPLICATION
US5051658A (en) * 1989-11-21 1991-09-24 U.S. Philips Corporation Electric high-pressure discharge lamp for use as a motor vehicle headlamp
US5517065A (en) * 1992-08-31 1996-05-14 Kover, Jr.; Joseph Automotive digital light control circuit with light bus monitor and windshield wiper light control circuit
EP1022189A1 (en) 1997-05-21 2000-07-26 Javier Bruna Brotons Device for automatically switching on and off the lights of a vehicle and warning lights for road traffic

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1864624U (en) * 1962-08-10 1962-12-27 Detlef Schaffer MOTOR VEHICLE.
AT258140B (en) * 1965-12-13 1967-11-10 Stefan Jaworski Arrangement for controlling the city lights and taillights, possibly the parking lights of a motor vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237106A (en) * 1989-07-10 1991-04-24 Brendan James Price Vehicle light management system
EP1112199B2 (en) † 1998-09-18 2016-08-17 Gentex Corporation Continuously variable headlamp control

Also Published As

Publication number Publication date
AU477076B2 (en) 1976-10-14
AR194136A1 (en) 1973-06-22
BE790603A (en) 1973-04-26
BR7207520D0 (en) 1973-08-21
ATA916172A (en) 1975-07-15
SE389304B (en) 1976-11-01
FR2157901B1 (en) 1975-09-12
DE2252914A1 (en) 1973-05-03
DE2252914C3 (en) 1981-10-29
US3821593A (en) 1974-06-28
CA988992A (en) 1976-05-11
AT329386B (en) 1976-05-10
FR2157901A1 (en) 1973-06-08
NL7214471A (en) 1973-05-02
AU4800872A (en) 1974-04-26
DE2252914B2 (en) 1981-01-15
ES408005A1 (en) 1975-11-01
IT939130B (en) 1973-02-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years