ES366259A1 - Improvements in or relating to signal light devices for automobile vehicles - Google Patents

Improvements in or relating to signal light devices for automobile vehicles

Info

Publication number
ES366259A1
ES366259A1 ES366259A ES366259A ES366259A1 ES 366259 A1 ES366259 A1 ES 366259A1 ES 366259 A ES366259 A ES 366259A ES 366259 A ES366259 A ES 366259A ES 366259 A1 ES366259 A1 ES 366259A1
Authority
ES
Spain
Prior art keywords
lamp
transistor
signal
intensity
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
ES366259A
Other languages
Spanish (es)
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Publication of ES366259A1 publication Critical patent/ES366259A1/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
    • B60Q1/26—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
    • B60Q1/2603—Attenuation of the light according to ambient luminiosity, e.g. for braking or direction indicating lamps

Landscapes

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

Abstract

In a signal light device for automobile vehicles comprising a lamp 1, 2 of a signal light adapted to be temporarily connected to an electrical source when a signal is to be emitted and a photo-sensitive element 8 controlling the intensity of the lamp 1, 2 as a function of the level of the ambient illumination, the lamp 1, 2 is connected in series with the emitter-collector circuit of a transistor 6 to the base of which the ', photo-sensitive element 8 is connected and an auxiliary lamp 9 having a resistance which varies in a non-linear manner as a function of its energizing voltage is connected between the emitter and collector of the transistor whereby a decrease in luminous intensity of the signal lamp 1, 2 takes place only below a predetermined ambient illumination. The signal lamps 1, 2 may be the vehicle stop lights or trafficator lights and the auxiliary lamp 9 may have a tungsten filament with a nitrogen, hydrogen or argon atmosphere. The photo-sensitive element 8 has a maximum resistance in darkness so that transistor 6 is biased OFF and the intensity of illumination of the signal lamps 1, 2 is controlled by the auxiliary lamp 9. As the ambient light increases to a point intermediate darkness and daylight the resistance of the photo-sensitive element 8 decreases and transistor 6 conducts to increase the intensity of signal lamps 1, 2. When maximum daylight occurs the photosensitive element 8 is at its minimum resistance and the transistor 6 is.fully conducting, making the voltage drop across the auxiliary lamp 9 zero to give maximum intensity to signal lamps 1, 2.
ES366259A 1968-04-10 1969-04-10 Improvements in or relating to signal light devices for automobile vehicles Expired ES366259A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR147647 1968-04-10

Publications (1)

Publication Number Publication Date
ES366259A1 true ES366259A1 (en) 1971-03-16

Family

ID=8648814

Family Applications (1)

Application Number Title Priority Date Filing Date
ES366259A Expired ES366259A1 (en) 1968-04-10 1969-04-10 Improvements in or relating to signal light devices for automobile vehicles

Country Status (4)

Country Link
DE (1) DE1917916A1 (en)
ES (1) ES366259A1 (en)
FR (1) FR1572352A (en)
GB (1) GB1243918A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005225483A (en) * 2005-01-06 2005-08-25 Jirou Collection:Kk Turn-signal lamp system, brake lamp system and headlight system for vehicle

Also Published As

Publication number Publication date
GB1243918A (en) 1971-08-25
DE1917916A1 (en) 1969-10-16
FR1572352A (en) 1969-06-27

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