FR578742A - Improvements to automotive headlights - Google Patents

Improvements to automotive headlights

Info

Publication number
FR578742A
FR578742A FR578742DA FR578742A FR 578742 A FR578742 A FR 578742A FR 578742D A FR578742D A FR 578742DA FR 578742 A FR578742 A FR 578742A
Authority
FR
France
Prior art keywords
automotive headlights
headlights
automotive
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
Norman Clarence Hall
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 FR578742A publication Critical patent/FR578742A/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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • 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
    • 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
    • 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
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR578742D 1923-03-12 1924-03-10 Improvements to automotive headlights Expired FR578742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU578742X 1923-03-12

Publications (1)

Publication Number Publication Date
FR578742A true FR578742A (en) 1924-10-02

Family

ID=3743249

Family Applications (1)

Application Number Title Priority Date Filing Date
FR578742D Expired FR578742A (en) 1923-03-12 1924-03-10 Improvements to automotive headlights

Country Status (1)

Country Link
FR (1) FR578742A (en)

Similar Documents

Publication Publication Date Title
FR575220A (en) Automotive Brake Improvement
FR537370A (en) Improvements to automotive headlights
FR578742A (en) Improvements to automotive headlights
FR563388A (en) Improvements to vehicle headlights
FR588841A (en) Improvements to vehicle suspension mechanisms
FR537960A (en) Automotive headlight improvements
FR581451A (en) Headlight for vehicle
FR603642A (en) Improvements made to headlights for automobiles or other vehicles
FR577976A (en) Improvements to lamps for road vehicles
FR583814A (en) Improvements to automotive headlight screens
FR578648A (en) Improvements to vehicle headlights
FR576006A (en) Improvements to vehicle headlights
FR574467A (en) Improvements to automotive vehicle suspensions
FR575443A (en) Automotive differentials improvements
FR563399A (en) Automotive bodywork
FR575234A (en) Automotive bodywork
FR564286A (en) Automotive improvements
FR560495A (en) Improvements to automotive headlights
FR558860A (en) Improvements to electric headlights for automobiles
FR578405A (en) Automotive headlights improvements
FR572055A (en) Automotive headlights improvements
FR610089A (en) Improvements to automotive headlights
FR573910A (en) Basketry bodywork for automobiles
FR616110A (en) Improvements to automotive headlights
FR610088A (en) Improvements to automotive headlights