GB1489748A - Light guide - Google Patents

Light guide

Info

Publication number
GB1489748A
GB1489748A GB11422/74A GB1142274A GB1489748A GB 1489748 A GB1489748 A GB 1489748A GB 11422/74 A GB11422/74 A GB 11422/74A GB 1142274 A GB1142274 A GB 1142274A GB 1489748 A GB1489748 A GB 1489748A
Authority
GB
United Kingdom
Prior art keywords
light
limb
guide
march
light guide
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
GB11422/74A
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.)
Lucas Electrical Co Ltd
Original Assignee
Lucas Electrical Co 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 Electrical Co Ltd filed Critical Lucas Electrical Co Ltd
Priority to GB11422/74A priority Critical patent/GB1489748A/en
Publication of GB1489748A publication Critical patent/GB1489748A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
    • B60Q3/275—Smoking-related fittings, e.g. cigarette lighters or ashtrays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

1489748 Lamps LUCAS ELECTRICAL Ltd 4 March 1975 [14 March 1974] 11422/74 Heading F4R [Also in Division G2] A light guide comprises an elongate one-piece member of transparent material which is forked at one end to define a pair of light-conducting limbs 14, 15 of which one, 15, defines at its free end a prism 16 arranged to reflect light conducted down the limb out of the limb at an angle thereto. Light conducted down the limb 14 issues directly out of the face 17. Light enters the guide from a cable plugged into a bore 12, the concave wall of a transverse bore 13 spreading the light into the other end of the guide.
GB11422/74A 1975-03-04 1975-03-04 Light guide Expired GB1489748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB11422/74A GB1489748A (en) 1975-03-04 1975-03-04 Light guide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11422/74A GB1489748A (en) 1975-03-04 1975-03-04 Light guide

Publications (1)

Publication Number Publication Date
GB1489748A true GB1489748A (en) 1977-10-26

Family

ID=9985942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11422/74A Expired GB1489748A (en) 1975-03-04 1975-03-04 Light guide

Country Status (1)

Country Link
GB (1) GB1489748A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105531151A (en) * 2013-07-22 2016-04-27 雷诺股份公司 Lighting system, in particular for a motor vehicle lighting member, comprising a printed circuit board in the plane of the lighting direction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105531151A (en) * 2013-07-22 2016-04-27 雷诺股份公司 Lighting system, in particular for a motor vehicle lighting member, comprising a printed circuit board in the plane of the lighting direction
CN105531151B (en) * 2013-07-22 2018-07-17 雷诺股份公司 Lighting system, automobile lighting device and automobile

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee