GB225282A - Improvements in light projectors - Google Patents

Improvements in light projectors

Info

Publication number
GB225282A
GB225282A GB21715/23A GB2171523A GB225282A GB 225282 A GB225282 A GB 225282A GB 21715/23 A GB21715/23 A GB 21715/23A GB 2171523 A GB2171523 A GB 2171523A GB 225282 A GB225282 A GB 225282A
Authority
GB
United Kingdom
Prior art keywords
reflector
light
concave spherical
reflectors
focus
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
GB21715/23A
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
Priority to GB21715/23A priority Critical patent/GB225282A/en
Publication of GB225282A publication Critical patent/GB225282A/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
    • 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
    • F21S41/10—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
    • F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
    • 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

Landscapes

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

Abstract

225,282. Ryland, H. S. Aug. 28, 1923. Vehicde lamps. - A vehicle lamp or other light projector comprises a concave spherical reflector a, a second concave spherical reflector d having its centre at or about the optical focus c of the first reflector a and with an aperture e at its vertex, a source of light at near and preferably behind the focus c and means, such as a ring f, for securing the reflectors together. A part of the edge of the front reflector may be turned up or removed to throw a portion of the light rays on the ground or in any other direction. One or both the reflectors may be of silvered glass. Specification 200,647 is referred to.
GB21715/23A 1923-08-28 1923-08-28 Improvements in light projectors Expired GB225282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB21715/23A GB225282A (en) 1923-08-28 1923-08-28 Improvements in light projectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21715/23A GB225282A (en) 1923-08-28 1923-08-28 Improvements in light projectors

Publications (1)

Publication Number Publication Date
GB225282A true GB225282A (en) 1924-11-28

Family

ID=10167615

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21715/23A Expired GB225282A (en) 1923-08-28 1923-08-28 Improvements in light projectors

Country Status (1)

Country Link
GB (1) GB225282A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626347A1 (en) * 1988-01-22 1989-07-28 Cibie Projecteurs Lamp with light recovery cheeks, in particular for motor vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626347A1 (en) * 1988-01-22 1989-07-28 Cibie Projecteurs Lamp with light recovery cheeks, in particular for motor vehicle

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