GB1528251A - Communication apparatus - Google Patents

Communication apparatus

Info

Publication number
GB1528251A
GB1528251A GB567776A GB567776A GB1528251A GB 1528251 A GB1528251 A GB 1528251A GB 567776 A GB567776 A GB 567776A GB 567776 A GB567776 A GB 567776A GB 1528251 A GB1528251 A GB 1528251A
Authority
GB
United Kingdom
Prior art keywords
light
guide
elongate
wall portion
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
GB567776A
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.)
Qioptiq Ltd
Original Assignee
Pilkington PE 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 Pilkington PE Ltd filed Critical Pilkington PE Ltd
Priority to GB567776A priority Critical patent/GB1528251A/en
Priority to DE19772703586 priority patent/DE2703586A1/en
Priority to FR7703990A priority patent/FR2341146A1/en
Publication of GB1528251A publication Critical patent/GB1528251A/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
    • G02B6/2852—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 using tapping light guides arranged sidewardly, e.g. in a non-parallel relationship with respect to the bus light guides (light extraction or launching through cladding, with or without surface discontinuities, bent structures)
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/103—Scanning systems having movable or deformable optical fibres, light guides or waveguides as scanning elements
    • 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
    • G02B6/2821—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 using lateral coupling between contiguous fibres to split or combine optical signals
    • G02B6/2826—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 using lateral coupling between contiguous fibres to split or combine optical signals using mechanical machining means for shaping of the couplers, e.g. grinding or polishing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

1528251 Light guide communication system PILKINGTON P E Ltd 21 Jan 1977 [13 Feb 1976] 05677/76 Heading G2J An elongate light guide is provided with means for injecting light thereinto for transmission therealong, and means for receiving light therefrom, one of either the injection or receiving means being movable and being constrained to move adjacent an elongated peripheral wall portion of the guide, the arrangement being such that light can pass through the elongate wall portion so as to maintain the injector and receiver in contact via the guide during such movement. As shown in Fig. 1, a light guide 2 follows a circular path and is supplied with light from source 1. Detectors 4 are secured to rotor 5 and closely follow the surface of guide 2 during rotation. The guide is so made that some light exits through the wall to be detected at 4. In one form Fig. 2 (not shown) scattering centres are included in the guide material to scatter light through the wall. In Fig. 3 (not shown) a narrow slot 11 is provided in cladding 10. A transparent roller may roll along slit 11, an axial conical convex surface directing the light to a detector axially disposed on the roller. Alternatively a globule of non wetting light transmitting liquid may be used as the moving contact. In another form an optical fibre has a longitudinal slot in which a portion of the moving contact slides. In a further embodiment the light guide is an internally silvered tube with a longitudinal slot in which the sliding contact moves. As shown in Fig. 10 (not shown) two light guides are placed mutually parallel and an injector located at the end of one arch a detector located at the end of the other. The device may use an elongate electroluminescent source adjacent the elongate wall portion. Rectilinear as well as rotary motion may be used.
GB567776A 1976-02-13 1976-02-13 Communication apparatus Expired GB1528251A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB567776A GB1528251A (en) 1976-02-13 1976-02-13 Communication apparatus
DE19772703586 DE2703586A1 (en) 1976-02-13 1977-01-28 DEVICE FOR TRANSMITTING INFORMATION
FR7703990A FR2341146A1 (en) 1976-02-13 1977-02-11 OPTICAL TRANSMISSION DEVICE, ESPECIALLY BETWEEN MOVING PARTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB567776A GB1528251A (en) 1976-02-13 1976-02-13 Communication apparatus

Publications (1)

Publication Number Publication Date
GB1528251A true GB1528251A (en) 1978-10-11

Family

ID=9800580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB567776A Expired GB1528251A (en) 1976-02-13 1976-02-13 Communication apparatus

Country Status (3)

Country Link
DE (1) DE2703586A1 (en)
FR (1) FR2341146A1 (en)
GB (1) GB1528251A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519673A (en) * 1982-04-28 1985-05-28 Barr & Stroud Limited Optical waveguide slip ring assembly
US5490008A (en) * 1993-07-28 1996-02-06 Siemens Aktiengesellschaft Non-contacting optical data transmission system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000436A1 (en) * 1977-12-26 1979-07-12 Nippon Telegraph & Telephone Optical coordinate input device
DE2846526A1 (en) * 1978-10-25 1980-05-08 Siemens Ag DEVICE FOR TRANSMITTING SIGNALS
DE2937656A1 (en) * 1979-09-18 1981-04-02 Neumünstersche Maschinen- und Apparatebau GmbH (Neumag), 2350 Neumünster Temp. monitor for rotating spool for thread or web - uses modulated light beam transmitted between rotating and fixed elements
GB2074313B (en) * 1980-03-25 1984-08-30 Nissan Motor Optical signal transmission systems
DE3019132A1 (en) * 1980-05-20 1981-11-26 Krauss-Maffei AG, 8000 München Non-contact communication link between moving components - has fibre=optic loop set in groove and continuously transmitting to opto-electrical sensor
US4436367A (en) * 1981-03-09 1984-03-13 Litton Systems, Inc. Optical slip ring assembly
DE19523097A1 (en) * 1995-06-26 1997-01-02 Abb Research Ltd Distributor of information

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519673A (en) * 1982-04-28 1985-05-28 Barr & Stroud Limited Optical waveguide slip ring assembly
US5490008A (en) * 1993-07-28 1996-02-06 Siemens Aktiengesellschaft Non-contacting optical data transmission system

Also Published As

Publication number Publication date
DE2703586A1 (en) 1977-08-18
FR2341146A1 (en) 1977-09-09

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Legal Events

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