GB1245962A - Light projectors - Google Patents

Light projectors

Info

Publication number
GB1245962A
GB1245962A GB08/68A GB1868A GB1245962A GB 1245962 A GB1245962 A GB 1245962A GB 08/68 A GB08/68 A GB 08/68A GB 1868 A GB1868 A GB 1868A GB 1245962 A GB1245962 A GB 1245962A
Authority
GB
United Kingdom
Prior art keywords
bulb
aperture
focus
plate
centre
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
GB08/68A
Inventor
Harris Vernon Hicks
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries Ltd
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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB08/68A priority Critical patent/GB1245962A/en
Priority to JP43096400A priority patent/JPS4815905B1/ja
Priority to DE19681817325 priority patent/DE1817325A1/en
Priority to ES362467A priority patent/ES362467A1/en
Priority to FR1600688D priority patent/FR1600688A/fr
Priority to US00141818A priority patent/US3818265A/en
Publication of GB1245962A publication Critical patent/GB1245962A/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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/686—Blades, i.e. screens moving in a vertical plane

Landscapes

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

Abstract

1,245,962. Mounting electric lamp bulbs. JOSEPH LUCAS (INDUSTRIES) Ltd. 18 Dec., 1968 [1 Jan., 1968], No. 18/68. Heading F4R. [Also in Division H1] An electric lamp bulb 11 arranged to project light through an aperture in a plate 14 is supported by a pair of brackets 43, 45 secured to the plate and engaging coaxial cylindrical spigots 36, 37 integral with the bulb, the bracket 45 being hinged to allow the removal of the bulb and the front portion 38b of the bulb being in contact with one end of a tube 41 the other end of which is secured to the plate around the aperture. The portion 38b is hemispherical with its centre on the axis of the spigots so that the bulb can be adjusted about this axis, and the rear portion 38a of the bulb is ellipsoidal with its first focus coincident with the centre of the portion 38b and its second focus located in the aperture. The filament of the bulb is disposed at the first focus, and the interior surface of the bulb is provided with a reflective coating except for the window 40. The coating on the portion 38a is dichroic.
GB08/68A 1964-09-30 1968-01-01 Light projectors Expired GB1245962A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB08/68A GB1245962A (en) 1968-01-01 1968-01-01 Light projectors
JP43096400A JPS4815905B1 (en) 1968-01-01 1968-12-28
DE19681817325 DE1817325A1 (en) 1968-01-01 1968-12-28 Headlights
ES362467A ES362467A1 (en) 1968-01-01 1968-12-31 Light projectors
FR1600688D FR1600688A (en) 1968-01-01 1968-12-31
US00141818A US3818265A (en) 1964-09-30 1971-05-10 Lighting systems for road vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08/68A GB1245962A (en) 1968-01-01 1968-01-01 Light projectors

Publications (1)

Publication Number Publication Date
GB1245962A true GB1245962A (en) 1971-09-15

Family

ID=9696906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08/68A Expired GB1245962A (en) 1964-09-30 1968-01-01 Light projectors

Country Status (4)

Country Link
JP (1) JPS4815905B1 (en)
DE (1) DE1817325A1 (en)
ES (1) ES362467A1 (en)
GB (1) GB1245962A (en)

Also Published As

Publication number Publication date
ES362467A1 (en) 1970-12-01
JPS4815905B1 (en) 1973-05-18
DE1817325A1 (en) 1969-08-14

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