JPS5340095B2 - - Google Patents

Info

Publication number
JPS5340095B2
JPS5340095B2 JP4803472A JP4803472A JPS5340095B2 JP S5340095 B2 JPS5340095 B2 JP S5340095B2 JP 4803472 A JP4803472 A JP 4803472A JP 4803472 A JP4803472 A JP 4803472A JP S5340095 B2 JPS5340095 B2 JP S5340095B2
Authority
JP
Japan
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
JP4803472A
Other versions
JPS4862485A (ja
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 filed Critical
Publication of JPS4862485A publication Critical patent/JPS4862485A/ja
Publication of JPS5340095B2 publication Critical patent/JPS5340095B2/ja
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
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • G02B6/0048—Tapered light guide, e.g. wedge-shaped light guide with stepwise taper
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • 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
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted along at least a portion of the lateral surface of the fibre
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/56—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function the record carrier having reserve loop, e.g. to minimise inertia during acceleration measuring or control in connection therewith
    • G11B15/58—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function the record carrier having reserve loop, e.g. to minimise inertia during acceleration measuring or control in connection therewith with vacuum column
    • 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
    • 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
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • 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
    • G02B6/2817—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 reflective elements to split or combine optical signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Optical Transform (AREA)
  • Lenses (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Facsimile Scanning Arrangements (AREA)
JP4803472A 1971-11-15 1972-05-15 Expired JPS5340095B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19858871A 1971-11-15 1971-11-15

Publications (2)

Publication Number Publication Date
JPS4862485A JPS4862485A (ja) 1973-08-31
JPS5340095B2 true JPS5340095B2 (ja) 1978-10-25

Family

ID=22733993

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4803472A Expired JPS5340095B2 (ja) 1971-11-15 1972-05-15

Country Status (3)

Country Link
US (1) US3758197A (ja)
JP (1) JPS5340095B2 (ja)
GB (1) GB1390855A (ja)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2277430A1 (fr) * 1974-07-03 1976-01-30 Labo Electronique Physique Galette de microcanaux avec face d'entree des canaux arrondie et procede de fabrication
DE2559947C3 (de) * 1975-02-26 1981-04-23 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Optische Vorrichtung mit einem Lichtvorhang
DE2508366C3 (de) * 1975-02-26 1979-05-17 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Optische Vorrichtung mit einem Lichtvorhang
JPS51126850A (en) * 1975-04-28 1976-11-05 Nippon Telegr & Teleph Corp <Ntt> A detector of the amount of slack of a belt-shaped object
DE2550815C3 (de) * 1975-11-12 1979-05-31 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Optisches Abtastsystem
DE2550814C3 (de) * 1975-11-12 1979-08-09 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Zeilentastvorrichtung für Materialbahnen zur Fehlstellenermittlung
US4142877A (en) * 1976-03-05 1979-03-06 Siemens Aktiengesellschaft Method for making output/input coupler for multi-mode glass fibers
US4070100A (en) * 1976-09-01 1978-01-24 Katsuyuki Akiyoshi Filter for partially transmitting light
JPS5368255A (en) * 1976-11-30 1978-06-17 Minoru Tsuda Optical body
DE2700027C3 (de) * 1977-01-03 1979-09-20 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Lichtleitstab
US4350410A (en) * 1980-10-08 1982-09-21 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Multiprism collimator
US4417824A (en) * 1982-03-29 1983-11-29 International Business Machines Corporation Optical keyboard with common light transmission members
US4466588A (en) * 1982-06-21 1984-08-21 J. Hal Byers Optical fiber travel direction indicator for model railroads
JPS6012506A (ja) * 1983-07-01 1985-01-22 Takashi Mori 光ラジエ−タ
DE3543089A1 (de) * 1985-12-05 1987-06-11 Siemens Ag Vorrichtung zur umsetzung von in einer speicherschicht getragenen strahlenbildinformationen in eine elektrische signalfolge
US4789408A (en) * 1986-11-25 1988-12-06 Fitzsimmons James W Solar collector
EP0281688A1 (en) * 1987-03-03 1988-09-14 Agfa-Gevaert N.V. Colour-scanning method and apparatus
GB2247536B (en) * 1990-08-28 1994-09-07 Brookes & Gatehouse A liquid crystal display
US5784203A (en) * 1996-11-26 1998-07-21 Beckmann; Leo H. J. F. Method and apparatus for combining the radiation output from a linear array of radiation sources
DE19809210A1 (de) * 1998-03-04 1999-09-16 Siemens Ag Verfahren und Vorrichtung zur Überwachung einer Szene
DE102004011780A1 (de) * 2004-03-09 2005-10-27 Gerd Reime Zugangskontrolleinrichtung
JP5609406B2 (ja) * 2010-08-09 2014-10-22 デクセリアルズ株式会社 光学素子およびその製造方法ならびに照明装置、窓材および建具
JPWO2013058381A1 (ja) * 2011-10-19 2015-04-02 株式会社ニコン 集光装置、光発電装置及び光熱変換装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417615A (en) * 1967-04-26 1968-12-24 Illinois Tool Works Liquid level indicator

Also Published As

Publication number Publication date
DE2223581A1 (de) 1973-05-30
GB1390855A (en) 1975-04-16
JPS4862485A (ja) 1973-08-31
DE2223581B2 (de) 1977-03-31
US3758197A (en) 1973-09-11

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