GB965076A - Improvements in lighting systems for road vehicles - Google Patents

Improvements in lighting systems for road vehicles

Info

Publication number
GB965076A
GB965076A GB28642/59A GB2864259A GB965076A GB 965076 A GB965076 A GB 965076A GB 28642/59 A GB28642/59 A GB 28642/59A GB 2864259 A GB2864259 A GB 2864259A GB 965076 A GB965076 A GB 965076A
Authority
GB
United Kingdom
Prior art keywords
filaments
main
auxiliary
pair
road vehicles
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
GB28642/59A
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 GB28642/59A priority Critical patent/GB965076A/en
Publication of GB965076A publication Critical patent/GB965076A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
    • F21S41/164—Incandescent light sources, e.g. filament or halogen lamps having two or more filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources

Landscapes

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

Abstract

965,076. Vehicle headlamp systems. R. P. H. HINDS. Nov. 21, 1960 [Aug. 21, 1959], No. 28642/59. Heading F4R. A lighting system for road vehicles comprises two pairs of headlamps, each having two filaments which can be energized alternatively, and switching means for selectively controlling the energization of the filaments. Each headlamp comprises a main filament at the focus and an auxiliary filament in an out of focus position. The switching means may put in circuit (1) the main filaments of one pair of headlamps and the auxiliary filaments of the other pair; (2) the main filaments of the latter pair only; or (3) the auxiliary filaments of the first mentioned pair only. These auxiliary filaments may be located on the optical axis of the lamps in front of the main filaments, a cup-shaped shield being arranged below them to screen the lower half of the reflector. Alternatively, transverse filaments arranged above the level of the main filaments may be used.
GB28642/59A 1959-08-21 1959-08-21 Improvements in lighting systems for road vehicles Expired GB965076A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB28642/59A GB965076A (en) 1959-08-21 1959-08-21 Improvements in lighting systems for road vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28642/59A GB965076A (en) 1959-08-21 1959-08-21 Improvements in lighting systems for road vehicles

Publications (1)

Publication Number Publication Date
GB965076A true GB965076A (en) 1964-07-29

Family

ID=10278822

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28642/59A Expired GB965076A (en) 1959-08-21 1959-08-21 Improvements in lighting systems for road vehicles

Country Status (1)

Country Link
GB (1) GB965076A (en)

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