GB1281788A - Improvements in or relating to headlamps - Google Patents

Improvements in or relating to headlamps

Info

Publication number
GB1281788A
GB1281788A GB05622/70A GB1562270A GB1281788A GB 1281788 A GB1281788 A GB 1281788A GB 05622/70 A GB05622/70 A GB 05622/70A GB 1562270 A GB1562270 A GB 1562270A GB 1281788 A GB1281788 A GB 1281788A
Authority
GB
United Kingdom
Prior art keywords
lamp
beam filament
lamp glass
april
ridges
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
GB05622/70A
Other languages
English (en)
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.)
Cibie Projecteurs SA
Original Assignee
Cibie Projecteurs 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 Cibie Projecteurs SA filed Critical Cibie Projecteurs SA
Publication of GB1281788A publication Critical patent/GB1281788A/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
    • F21S41/33—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
    • F21S41/10—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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
GB05622/70A 1969-04-04 1970-04-02 Improvements in or relating to headlamps Expired GB1281788A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6910385A FR2040583A6 (enrdf_load_stackoverflow) 1969-04-04 1969-04-04

Publications (1)

Publication Number Publication Date
GB1281788A true GB1281788A (en) 1972-07-12

Family

ID=9031929

Family Applications (2)

Application Number Title Priority Date Filing Date
GB05622/70A Expired GB1281788A (en) 1969-04-04 1970-04-02 Improvements in or relating to headlamps
GB826670A Expired GB1287869A (enrdf_load_stackoverflow) 1969-04-04 1970-04-02

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB826670A Expired GB1287869A (enrdf_load_stackoverflow) 1969-04-04 1970-04-02

Country Status (3)

Country Link
DE (1) DE2016094C3 (enrdf_load_stackoverflow)
FR (1) FR2040583A6 (enrdf_load_stackoverflow)
GB (2) GB1281788A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009016234B4 (de) * 2009-04-03 2014-03-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Strahlformer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2261508A (en) * 1939-12-22 1941-11-04 Trippe Graham Headlight
DE1219421B (de) * 1960-04-22 1966-06-23 Philips Nv Fahrzeugscheinwerfer
FR1393430A (fr) * 1964-02-08 1965-03-26 Projecteur à éclairage complémentaire de celui des projecteurs de croisement de véhicules automobiles pour l'obtention d'un éclairage de route
DE1274533B (de) * 1966-01-27 1968-08-08 Westfaelische Metall Ind K G H Scheinwerfer fuer Kraftfahrzeuge mit einem parabolischen Reflektor
DE1283775B (de) * 1966-08-23 1968-11-28 Bosch Gmbh Robert Scheinwerfer fuer Kraftfahrzeuge

Also Published As

Publication number Publication date
DE2016094C3 (de) 1982-02-04
FR2040583A6 (enrdf_load_stackoverflow) 1971-01-22
GB1287869A (enrdf_load_stackoverflow) 1972-09-06
DE2016094A1 (de) 1970-11-12
DE2016094B2 (de) 1978-08-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee