NL284072A - - Google Patents

Info

Publication number
NL284072A
NL284072A NL284072DA NL284072A NL 284072 A NL284072 A NL 284072A NL 284072D A NL284072D A NL 284072DA NL 284072 A NL284072 A NL 284072A
Authority
NL
Netherlands
Application number
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.)
Publication of NL284072A publication Critical patent/NL284072A/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
    • 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
    • F21S41/30—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
    • 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
    • F21S41/331—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas
    • F21S41/332—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas with continuity at the junction between adjacent areas

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
NL284072D 1961-10-09 NL284072A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM51258A DE1170540B (de) 1961-10-09 1961-10-09 Zweifadengluehlampe fuer abgeblendetes Fern- und Nahlicht in Kraftfahrzeugscheinwerfern

Publications (1)

Publication Number Publication Date
NL284072A true NL284072A (en:Method)

Family

ID=7307068

Family Applications (1)

Application Number Title Priority Date Filing Date
NL284072D NL284072A (en:Method) 1961-10-09

Country Status (5)

Country Link
US (1) US3200281A (en:Method)
DE (1) DE1170540B (en:Method)
GB (1) GB981207A (en:Method)
NL (1) NL284072A (en:Method)
SE (1) SE301914B (en:Method)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7014336A (en:Method) * 1970-09-30 1972-04-05

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1280626A (en) * 1916-01-17 1918-10-08 Adelbert Ames Jr Reflector.
FR732284A (fr) * 1931-05-04 1932-09-15 Lampes Sa Lampe électrique pour éclairage sans éblouissement, dite
US1963672A (en) * 1931-06-05 1934-06-19 Bertrand A Parkes Circular drying, stretching, and finishing machine
FR743401A (en:Method) * 1932-07-28 1933-03-30
US2245793A (en) * 1937-09-30 1941-06-17 Westinghouse Electric & Mfg Co Multiple filament lamp
US2501140A (en) * 1947-10-17 1950-03-21 Pique Baudilio Jesus Electric-light projecting reflector

Also Published As

Publication number Publication date
GB981207A (en) 1965-01-20
DE1170540B (de) 1964-05-21
US3200281A (en) 1965-08-10
SE301914B (en:Method) 1968-06-24

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