FR670779A - Improvements made to headlamps for locomotive vehicles - Google Patents

Improvements made to headlamps for locomotive vehicles

Info

Publication number
FR670779A
FR670779A FR670779DA FR670779A FR 670779 A FR670779 A FR 670779A FR 670779D A FR670779D A FR 670779DA FR 670779 A FR670779 A FR 670779A
Authority
FR
France
Prior art keywords
headlamps
improvements made
locomotive vehicles
locomotive
vehicles
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
Other languages
French (fr)
Inventor
Frederic-Clement Nestler
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 filed Critical
Application granted granted Critical
Publication of FR670779A publication Critical patent/FR670779A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR670779D 1929-03-04 1929-03-04 Improvements made to headlamps for locomotive vehicles Expired FR670779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR670779T 1929-03-04

Publications (1)

Publication Number Publication Date
FR670779A true FR670779A (en) 1929-12-04

Family

ID=9016561

Family Applications (1)

Application Number Title Priority Date Filing Date
FR670779D Expired FR670779A (en) 1929-03-04 1929-03-04 Improvements made to headlamps for locomotive vehicles

Country Status (1)

Country Link
FR (1) FR670779A (en)

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