GB919749A - Improvements in headlamps for vehicles - Google Patents

Improvements in headlamps for vehicles

Info

Publication number
GB919749A
GB919749A GB12879/61A GB1287961A GB919749A GB 919749 A GB919749 A GB 919749A GB 12879/61 A GB12879/61 A GB 12879/61A GB 1287961 A GB1287961 A GB 1287961A GB 919749 A GB919749 A GB 919749A
Authority
GB
United Kingdom
Prior art keywords
reflector
headlamp
main
filament
april
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
GB12879/61A
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
Publication of GB919749A publication Critical patent/GB919749A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

919,749. Vehicle lamps. CIBIE, P. April 10, 1961 [April 20, 1960], No. 12879/61. Addition to 841,367. Classes 75 (2) and 75 (4). The headlamp of the parent Specification is modified by constructing the inner reflector in two parts divided by a horizontal line so that each part can be separately orientated with regard to the light source. The headlamp uses a bulb with a main and a dipped filament, the latter being associated with a screen for cutting off radiation from the lower half of the reflector. In the form shown, the headlamp has an outer reflector 1 having a rectangular mouth closed by a glass 2, and inner reflectors 12, 13 on opposite sides of the axis of the lamp 4. The reflector 1 consists of a paraboloid of revolution arranged between two flat parallel faces 8, 9 on which the reflectors 12, 13 are supported. The position of the upper reflector 12 is adjusted in relation to the dipped filament 6 and it may also be turned through a small angle about a vertical axis to increase the illumination at e.g. the near side of the road. To reduce the intensity of short-range illumination of the road by the main filament, the reflector 13 may be moved nearer to the bottom of the reflector 1 or its optical axis may be tilted upwards relative to the optical axis of the main reflector.
GB12879/61A 1960-04-20 1961-04-10 Improvements in headlamps for vehicles Expired GB919749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR824729A FR77538E (en) 1960-04-20 1960-04-20 Long-range, close-illuminated projector

Publications (1)

Publication Number Publication Date
GB919749A true GB919749A (en) 1963-02-27

Family

ID=8729608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12879/61A Expired GB919749A (en) 1960-04-20 1961-04-10 Improvements in headlamps for vehicles

Country Status (2)

Country Link
FR (1) FR77538E (en)
GB (1) GB919749A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000266A (en) * 1977-06-17 1979-01-04 Lucas Industries Ltd Lamp reflector for a motor vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3525041C2 (en) * 1985-07-13 1994-06-16 Bosch Gmbh Robert Low beam or fog lights for motor vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000266A (en) * 1977-06-17 1979-01-04 Lucas Industries Ltd Lamp reflector for a motor vehicle
GB2000266B (en) * 1977-06-17 1982-01-27 Lucas Industries Ltd Lamp reflector for a motor vehicle

Also Published As

Publication number Publication date
FR77538E (en) 1962-03-16

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