GB387154A - Improvements in and relating to lamps - Google Patents

Improvements in and relating to lamps

Info

Publication number
GB387154A
GB387154A GB689932A GB689932A GB387154A GB 387154 A GB387154 A GB 387154A GB 689932 A GB689932 A GB 689932A GB 689932 A GB689932 A GB 689932A GB 387154 A GB387154 A GB 387154A
Authority
GB
United Kingdom
Prior art keywords
plates
lamps
lower plates
march
curved
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
GB689932A
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 GB387154A publication Critical patent/GB387154A/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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • 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
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • 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)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

387,154. Vehicle &c.lamps. BARNES, L. W., Lynn Tor, Newton Street, Newmarket, near Brisbane, Australia. March 8, 1932, No. 6899. Convention date, March 24, 1931. [Class 75 (iv).] In an anti-dazzle device for vehicle and like lamps comprising substantially half conical frustum shaped plates arranged concentrically above and below one or more thin flat straight plates C at or near the centre, the upper plates A diverge inwardly whilst the lower plates B diverge outwardly. The planes containing the front and rear edges of the plates A, B may be parallel or inclined to each other, the plates A may be curved in their width, and all the plates may have reflecting under-surfaces and non-reflecting upper surfaces. The Specification as open to inspection under Sect. 91 states also that the upper and lower plates may be of elliptical or other curvature in transverse section, the lower plates may be curved in their width, and either the flat straight plates, the upper plates, or the lower plates may be dispensed with. This subjectmatter does not appear in the Specification as accepted.
GB689932A 1931-03-24 1932-03-08 Improvements in and relating to lamps Expired GB387154A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU387154X 1931-03-24

Publications (1)

Publication Number Publication Date
GB387154A true GB387154A (en) 1933-02-02

Family

ID=3725677

Family Applications (1)

Application Number Title Priority Date Filing Date
GB689932A Expired GB387154A (en) 1931-03-24 1932-03-08 Improvements in and relating to lamps

Country Status (1)

Country Link
GB (1) GB387154A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129537A (en) * 1982-10-23 1984-05-16 Kenneth Roy Hipwood Non dazzle non dipping headlamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129537A (en) * 1982-10-23 1984-05-16 Kenneth Roy Hipwood Non dazzle non dipping headlamp

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