GB170818A - Improvements in or relating to lamps particularly applicable for use on motor and other vehicles - Google Patents

Improvements in or relating to lamps particularly applicable for use on motor and other vehicles

Info

Publication number
GB170818A
GB170818A GB611921A GB611921A GB170818A GB 170818 A GB170818 A GB 170818A GB 611921 A GB611921 A GB 611921A GB 611921 A GB611921 A GB 611921A GB 170818 A GB170818 A GB 170818A
Authority
GB
United Kingdom
Prior art keywords
vehicles
relating
motor
particularly applicable
reflectors
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
GB611921A
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.)
Benjamin Electric Ltd
Original Assignee
Benjamin Electric Ltd
Filing date
Publication date
Application filed by Benjamin Electric Ltd filed Critical Benjamin Electric Ltd
Publication of GB170818A publication Critical patent/GB170818A/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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • 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
    • F21S41/18—Combination of light sources of different types or shapes
    • 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
    • F21S41/334—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
    • 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)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

170,818. Benjamin Electric, Ltd., (Assignees of Benjamin, R. B.). Oct. 27, 1920, [Convention date]. Vehicle lamps.-A headlight for vehicles comprises two conjoint reflectors 11, 13 with sources of light 10, 12 arranged as shown so that none of the light rays are reflected upwardly. The reflectors are parabolic in axial section and ellipsoidal in transverse section, and the upper reflector 13 projects slightly to the rear of the reflector 11.
GB611921A 1921-02-23 Improvements in or relating to lamps particularly applicable for use on motor and other vehicles Expired GB170818A (en)

Publications (1)

Publication Number Publication Date
GB170818A true GB170818A (en) 1922-04-13

Family

ID=1628517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB611921A Expired GB170818A (en) 1921-02-23 Improvements in or relating to lamps particularly applicable for use on motor and other vehicles

Country Status (1)

Country Link
GB (1) GB170818A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582778A1 (en) * 1985-05-30 1986-12-05 Westfaelische Metall Industrie NON-GLARE LIGHTING HEADLAMP, OF THE LENS OR PROJECTION TYPE, FOR A VEHICLE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582778A1 (en) * 1985-05-30 1986-12-05 Westfaelische Metall Industrie NON-GLARE LIGHTING HEADLAMP, OF THE LENS OR PROJECTION TYPE, FOR A VEHICLE

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