GB302656A - - Google Patents

Info

Publication number
GB302656A
GB302656A GB36947/28A GB3694728A GB302656A GB 302656 A GB302656 A GB 302656A GB 36947/28 A GB36947/28 A GB 36947/28A GB 3694728 A GB3694728 A GB 3694728A GB 302656 A GB302656 A GB 302656A
Authority
GB
United Kingdom
Prior art keywords
rays
filament
light
reflectors
prisms
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
GB36947/28A
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.)
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 GB302656A publication Critical patent/GB302656A/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
    • 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
    • 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
    • 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
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • 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
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
GB36947/28A 1927-12-19 1928-12-14 Expired GB302656A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR302656T 1927-12-19

Publications (1)

Publication Number Publication Date
GB302656A true GB302656A (enrdf_load_stackoverflow) 1929-10-31

Family

ID=31897872

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36947/28A Expired GB302656A (enrdf_load_stackoverflow) 1927-12-19 1928-12-14

Country Status (1)

Country Link
GB (1) GB302656A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767735C (de) * 1941-10-15 1953-04-16 Daimler Benz Ag Scheinwerferanlage fuer Fahrzeuge, insbesondere Kraftfahrzeuge
US3501626A (en) * 1964-02-18 1970-03-17 Anciens Ets Barbier Radiation condenser devices
US5871273A (en) * 1994-09-29 1999-02-16 Rockwell International Optical light piping reflector element for backlighting liquid crystal displays
FR2768490A1 (fr) * 1997-09-13 1999-03-19 Bosch Gmbh Robert Unite de projecteur pour vehicules automobiles
WO2002038413A1 (de) * 2000-11-09 2002-05-16 Daimlerchrysler Ag Einrichtung zur fahrzeugbeleuchtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767735C (de) * 1941-10-15 1953-04-16 Daimler Benz Ag Scheinwerferanlage fuer Fahrzeuge, insbesondere Kraftfahrzeuge
US3501626A (en) * 1964-02-18 1970-03-17 Anciens Ets Barbier Radiation condenser devices
US5871273A (en) * 1994-09-29 1999-02-16 Rockwell International Optical light piping reflector element for backlighting liquid crystal displays
FR2768490A1 (fr) * 1997-09-13 1999-03-19 Bosch Gmbh Robert Unite de projecteur pour vehicules automobiles
WO2002038413A1 (de) * 2000-11-09 2002-05-16 Daimlerchrysler Ag Einrichtung zur fahrzeugbeleuchtung
US6863412B2 (en) 2000-11-09 2005-03-08 Daimlerchrysler Ag Device for vehicle lighting

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