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GB972296A - Improvements in or relating to vehicle headlights - Google Patents

Improvements in or relating to vehicle headlights

Info

Publication number
GB972296A
GB972296A GB2211/61A GB221161A GB972296A GB 972296 A GB972296 A GB 972296A GB 2211/61 A GB2211/61 A GB 2211/61A GB 221161 A GB221161 A GB 221161A GB 972296 A GB972296 A GB 972296A
Authority
GB
United Kingdom
Prior art keywords
filament
foci
reflector
jan
focus
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
GB2211/61A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB972296A publication Critical patent/GB972296A/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
    • 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
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
    • 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
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light

Landscapes

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

Abstract

972,296. Vehicle headlamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Jan. 19, 1961 [Jan. 22, 1960], No. 2211/61. Heading F4R. [Also in Division H1] A vehicle headlamp comprises a reflector consisting of parabolic upper and lower halves 1, 2, the focus F 1 of the upper half being nearer to the poles of the reflector than the focus F 2 of the lower half, a filament 3 extending between the foci along the axis joining them, a second filament 5 arranged horizontally and at right angles to the first filament and an elliptical mirror 8 located in the upper half of the headlamp facing the filaments at the end of the first filament opposite to the second filament with its foci substantially coincident with the foci F 1 , F 2 of the upper and lower halves of the parabolic reflector respectively. The cover glass 11 of the lamp may be provided with light spreading beams e.g. vertical prisms. The mirror 8 may be attached to or form part of the cover glass 11.
GB2211/61A 1960-01-22 1961-01-19 Improvements in or relating to vehicle headlights Expired GB972296A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL247668 1960-01-22

Publications (1)

Publication Number Publication Date
GB972296A true GB972296A (en) 1964-10-14

Family

ID=19752131

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2211/61A Expired GB972296A (en) 1960-01-22 1961-01-19 Improvements in or relating to vehicle headlights

Country Status (6)

Country Link
CH (1) CH390390A (en)
DE (1) DE1869709U (en)
DK (1) DK104162C (en)
ES (1) ES264123A1 (en)
GB (1) GB972296A (en)
OA (1) OA00823A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2726951A1 (en) * 1976-06-18 1977-12-29 Lucas Industries Ltd LAMP REFLECTOR AND LAMP UNIT
GB2150684A (en) * 1983-11-09 1985-07-03 Westfaelische Metall Industrie Dipped vehicle headlamp
DE3408718A1 (en) * 1984-03-09 1985-09-19 Stanley Electric Co. Ltd., Tokio/Tokyo Vehicle headlamp

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2208089B1 (en) * 1972-11-24 1976-08-20 Laribe Armand
DE3428062C2 (en) * 1984-07-30 1996-03-21 Stanley Electric Co Ltd Multi-part reflector for a vehicle headlight

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2726951A1 (en) * 1976-06-18 1977-12-29 Lucas Industries Ltd LAMP REFLECTOR AND LAMP UNIT
GB2150684A (en) * 1983-11-09 1985-07-03 Westfaelische Metall Industrie Dipped vehicle headlamp
US4612608A (en) * 1983-11-09 1986-09-16 Westfalische Metall Industrie Kg Hueck & Co. Dimmed vehicle headlight
DE3408718A1 (en) * 1984-03-09 1985-09-19 Stanley Electric Co. Ltd., Tokio/Tokyo Vehicle headlamp

Also Published As

Publication number Publication date
DK104162C (en) 1966-04-18
ES264123A1 (en) 1961-03-16
DE1869709U (en) 1963-04-04
OA00823A (en) 1967-11-15
CH390390A (en) 1965-04-15

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