GB404090A - Improvements in or relating to anti-dazzle devices for vehicle lamps - Google Patents

Improvements in or relating to anti-dazzle devices for vehicle lamps

Info

Publication number
GB404090A
GB404090A GB2590832A GB2590832A GB404090A GB 404090 A GB404090 A GB 404090A GB 2590832 A GB2590832 A GB 2590832A GB 2590832 A GB2590832 A GB 2590832A GB 404090 A GB404090 A GB 404090A
Authority
GB
United Kingdom
Prior art keywords
vanes
notches
partly
ring
axis
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
GB2590832A
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.)
THOMAS WILLIAM TOMLIN DOBBS
Original Assignee
THOMAS WILLIAM TOMLIN DOBBS
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 THOMAS WILLIAM TOMLIN DOBBS filed Critical THOMAS WILLIAM TOMLIN DOBBS
Priority to GB2590832A priority Critical patent/GB404090A/en
Publication of GB404090A publication Critical patent/GB404090A/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
    • F21S41/40—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
    • 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
    • F21S41/47—Attachment 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)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

404,090. Vehicle lamps. JOHNSON, A., 20, Diamond Street, and DOBBS, T. W. T., 16, Blackbird Avenue, both in Leicester. Sept. 17, 1932, No. 25908. [Class 75 (iv).] An anti-dazzle device for vehicle lamps comprises a series of thin vanes extending axially inside the lamp casing and arranged radially and edgewise to the parabolic reflector. In the form shown, the metal vanes 1 are held in position by means of a flanged locking ring 3 which is soldered, welded, or riveted to a holding frame 2 having radial notches to provide spacing lugs 6, by an externally notched locating ring 8 engag. ing in notches 10 in the vanes and fitted with a plain packing ring 12 and by an internally notched ring 13 engaging in notches in the vanes and fitted with a plain packing ring 16, a split spring locking ring 17 engaging in further notches in the vanes. The outer edges 1a of the vanes may be straight or curved to correspond to the shape of the reflector, whilst the inner edges of alternate vanes may extend partly parallel to the axis of the lamp as shown at A, and partly converging on the axis as shown at B and C, the inner edges of the remaining vanes extending nearer to the axis and comprising only the parallel part A and the inclined part B. A partly tapered and partly cylindrical opening 19 is therefore provided to accommodate the electric lamp bulb. The sides of the vanes may bo painted or otherwise made non-reflecting. A concave recuperating reflector 20 may bo mounted at the front of the opening 19 by means of a holder 21 riveted to hub portions of the rings 8, 12, the rivet 22 also supporting a disc 26 carrying a name or other mark. In a modification, the inner edges of the vanes form an obtuse angle, which may be rounded off. Reference has been directed by the Comptroller to Specifications 244,534 and 286,537, [both in Class 75 (iv), Lamps &c., Kinds &c. of].
GB2590832A 1932-09-17 1932-09-17 Improvements in or relating to anti-dazzle devices for vehicle lamps Expired GB404090A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2590832A GB404090A (en) 1932-09-17 1932-09-17 Improvements in or relating to anti-dazzle devices for vehicle lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2590832A GB404090A (en) 1932-09-17 1932-09-17 Improvements in or relating to anti-dazzle devices for vehicle lamps

Publications (1)

Publication Number Publication Date
GB404090A true GB404090A (en) 1934-01-11

Family

ID=10235285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2590832A Expired GB404090A (en) 1932-09-17 1932-09-17 Improvements in or relating to anti-dazzle devices for vehicle lamps

Country Status (1)

Country Link
GB (1) GB404090A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1193443B (en) * 1961-12-19 1965-05-26 Hemholz & Pauli Beleuchtungste Anti-glare louvre for lights

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1193443B (en) * 1961-12-19 1965-05-26 Hemholz & Pauli Beleuchtungste Anti-glare louvre for lights

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