GB841367A - Improvements in projectors, more particularly motor vehicle headlights - Google Patents

Improvements in projectors, more particularly motor vehicle headlights

Info

Publication number
GB841367A
GB841367A GB21079/57A GB2107957A GB841367A GB 841367 A GB841367 A GB 841367A GB 21079/57 A GB21079/57 A GB 21079/57A GB 2107957 A GB2107957 A GB 2107957A GB 841367 A GB841367 A GB 841367A
Authority
GB
United Kingdom
Prior art keywords
reflector
windows
surrounded
lamp
shutters
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
GB21079/57A
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 GB841367A publication Critical patent/GB841367A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

841,367. Vehicle lamps. CIBIE, P. July 3, 1957 [Nov. 21, 1956], No. 21079/57. Classes 39(2), 75(2) and 75(4). A lamp more particularly for motor vehicles comprises a light source surrounded by an inner reflector of small apparent area as viewed from in front on which most of the light falls and which is provided with windows behind which are arranged portions of a reflector of larger apparent area. The reflectors may be parts of surfaces of paraboloids of revolution which may be co-axial or not and may have a common focus or not. In the form shown, the lamp bulb 1 is surrounded by a reflector 2 having windows 4 for illumination of a larger reflector 3. The outer reflector may be in the form of a horizontal strip of size large enough to receive the light flux from the windows 4. It may also extend only on one side of the lamp, a window being provided in the inner reflector only on this side. The windows in the inner reflector may extend completely across or may be formed by notches extending inwards from the outer edges. The outer reflector 3 may also have windows for illumination of a further reflector arranged outside it. The inner reflector may be arranged to produce a dipped beam and the outer reflector a long range beam, the windows then being provided with shutters to enable the change over to be effected by closing the shutters. In a sealed beam headlamp, the filament may be surrounded by a window reflector of small aperture, the rear part of the headlamp forming the outer reflector. In a further modification, Figs. 8, 9 (not shown), the inner reflector may be produced by applying a reflecting coating to the bulb itself, blank areas being left in this coating to form the windows.
GB21079/57A 1956-11-21 1957-07-03 Improvements in projectors, more particularly motor vehicle headlights Expired GB841367A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR841367X 1956-11-21

Publications (1)

Publication Number Publication Date
GB841367A true GB841367A (en) 1960-07-13

Family

ID=9307459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21079/57A Expired GB841367A (en) 1956-11-21 1957-07-03 Improvements in projectors, more particularly motor vehicle headlights

Country Status (1)

Country Link
GB (1) GB841367A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1128124A3 (en) * 2000-02-25 2003-05-02 Stanley Electric Corporation Headlamp for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1128124A3 (en) * 2000-02-25 2003-05-02 Stanley Electric Corporation Headlamp for vehicle

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