US3905852A - Method of producing branched photo-conductive fiber bundles - Google Patents

Method of producing branched photo-conductive fiber bundles Download PDF

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Publication number
US3905852A
US3905852A US421722A US42172273A US3905852A US 3905852 A US3905852 A US 3905852A US 421722 A US421722 A US 421722A US 42172273 A US42172273 A US 42172273A US 3905852 A US3905852 A US 3905852A
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US
United States
Prior art keywords
fiber
photon
filaments
filament
guide plate
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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 - Lifetime
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US421722A
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English (en)
Inventor
Kunihiko Mukai
Kikuo Ikeda
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.)
Nippon Sheet Glass Co Ltd
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Nippon Glass Fiber 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 Nippon Glass Fiber Co Ltd filed Critical Nippon Glass Fiber Co Ltd
Application granted granted Critical
Publication of US3905852A publication Critical patent/US3905852A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • 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
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
    • 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
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • G02B6/3878—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules comprising a plurality of ferrules, branching and break-out means
    • 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
    • G02B6/36—Mechanical coupling means
    • G02B6/40—Mechanical coupling means having fibre bundle mating means
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479—Manufacturing methods of optical cables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
    • G01N21/474—Details of optical heads therefor, e.g. using optical fibres
    • G01N2021/4742—Details of optical heads therefor, e.g. using optical fibres comprising optical fibres
    • G01N2021/4747—Concentric bundles

Definitions

  • ABSTRACT [30] Foreign Application Priority Data
  • a guide plate formed with a plurality of holes for guid- Dec. 19, 1972 Japan 47-127363 ing the fiber filaments has a first Whom"Conductive fiber filament of relatively large size passed through a 52 us. (:1. 156/180; 156/296; 350/320 relatively large-Sized Center hole of the guide Plate [51] Int.
  • This invention relates to a photon-conductive fiber bundle of the type used for light pens, the bundle being composed of two types of fiber filaments which differ in diameter, the filament of relatively large diameter being surrounded by the filaments of relatively small diameter.
  • the invention also relates to a method of and an apparatus for producing such fiber bundles.
  • a photon-conductive fiber bundle composed of photon-conductive fibers such as plastic or glass fibers which are bundled together at one end and branched or ramified at the other end is used, for example, as a light pen designed to serve as a light entrance terminal for a photoelectric circuit or for other purposes. It is desirable that the arangement of the fibers constituting the branched end and the combined end on the reflection side is such that the light receiving fibers and the light projecting fibers are positioned contiguously adjacent to each other.
  • An object of the present invention is to provide a branched type photon-conductive fiber bundle which requires no complicated manufacturing steps and which can produce a working effect equal to or higher than that obtainable from a fiber bundle in which the light receiving fibers and the light entering fibers are arranged alternately in contiguously adjacent relation.
  • Another object of the present invention is to provide a branched type photon-conductive fiber bundle in which the core of the bundle is composed of either a light receiving type fiber filament or a light projecting type fiber filament, the core being surrounded by the fibers of the other type. More specifically, a fiber filament with a comparatively large diameter is placed in the center and the fibers with a comparatively small diameter are arranged concentrically around the center fiber filament and bonded together.
  • a further object of the present invention is to provide a branched type photon-conductive fiber bundle in which a fiber filament with a comparatively large diameter is positioned in the center of the bundle and a plurality of fibers with a comparatively small diameter are placed around the central filament in multiple layers and bonded together.
  • Still another object of the present invention is to provide a fiber bundling guide used in producing a fiber bundle of the type described above, the fiber bundling guide having a construction such that a large-diameter guide pipe for passing a comparatively thick fiber filament is provided in the center of the guide and a plurality of small-diameter guide pipes for passing the comparatively thin fiber filaments are provided concentrically around the center guide pipe.
  • FIG. I is a diagram illustrating the operating principle of a branched or bifurcated type photon-conductive fiber bundle.
  • FIG. 2 is an enlarged diagrammatic view showing the combined end of a conventional high sensitivity fiber bundle.
  • FIGS. 3a and 3b diagrammatically show the examples of the combined end of a bifurcated type photonconductive fiber bundle according to the present invention, where 3a shows an example in which the smalldiameter fibers are arranged in a single layer around a large-diameter fiber, and 3b shows an example where the small-diameter fibers are arranged in double layers around the central large-diameter fiber.
  • FIGS. 4a, 4b and 40 show a fiber bundling guide used in practicing the present invention, where 4a is a perspective view, 4b is an enlarged central vertical sectional view, and 4c is a bottom view.
  • a bifurcated or branched photon-conductive fiber bundle is composed of photon'conductive fibers such as plastic or glass fibers which are bundled together at one end 5 and branched at the other end.
  • photon'conductive fibers such as plastic or glass fibers which are bundled together at one end 5 and branched at the other end.
  • Such a fiber bundle is used, for example, in a light pen designed to serve as a light entrance terminal for a photoelectric circuit or other similar purpose. It is desirable that the arrangement of the fibers constituting the combined end 5 is such that the light receiving fibers l and the light projecting fibers 2 are positioned alternately adjacent to each other to present a geometrical pattern as shown in FIG. 2.
  • FIGS. 3a and 312 show examples of the combined end of a bifurcated photon-conductive fiber bundle produced by using the fiber bundling guide according to this invention.
  • FIG. 3a shows an example where the small-diameter fiber filaments 8 are arranged in a row around a single piece of large-diameter fiber filament 7, and
  • FIG. 3b shows an example where the smalldiameter fiber filaments 8 are arranged in multiple layers around the central filament 7.
  • a fiber bundle having a combined end such as shown in FIGS. 3a and 3b is easily assembled using a fiber guide plate or bundling guide as shown in FIGS. 4a, 4b and 40.
  • the guide plate 9 In the guide plate 9 are formed a central guide pipe 10 extending axially through the center of the plate and a plurality of guide pipes 11 equidistantly encircling the central guide pipe 10 and extending through the plate with an inclination of a certain angle toward the axis of the central guide pipe 10.
  • a fiber filament 7 with a comparatively large diameter, such as for example IOO m is inserted into the central guide pipe 10 from one end thereof and extended out from the other end.
  • the fiber filaments 8 with a comparatively small diameter, such as for example 13am are inserted into the respective surrounding guide pipes 11 from one end and extended out from the other end. These fiber filaments 7 and 8 are bundled together such that the filaments with a small diameter will be arranged in order around the large-diameter filament 7, and then the filaments 7 and 8 are bonded together with epoxy resin or other suitable synthetic resin adhesive.
  • the fiber bundling guide 9 it is desirable to apply suitable coating on the inner face of each guide pipe so as to provide pertinent slidability to the respective fiber filaments and to protect the fiber surfaces.
  • the largeand small-diameter fiber filaments are arranged parallel to each other at and near the combined end thereof.
  • a suitable coating is silicone.
  • the branched photonconductive fiber bundle according to the present invention demonstrates substantially as excellent an operating performance obtained in the conventional high sensitivity fiber bundles such as shown in FIG. 2, and yet it can be produced by merely using a very simple apparatus.
  • a method of producing a bifurcated photonconductive fiber bundle by combining a first photonconductive fiber filament and second photonconductive fiber filaments having respective different diameter according to the following steps:

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
US421722A 1972-12-19 1973-12-04 Method of producing branched photo-conductive fiber bundles Expired - Lifetime US3905852A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47127363A JPS4984456A (enrdf_load_stackoverflow) 1972-12-19 1972-12-19

Publications (1)

Publication Number Publication Date
US3905852A true US3905852A (en) 1975-09-16

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ID=14958094

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Application Number Title Priority Date Filing Date
US421722A Expired - Lifetime US3905852A (en) 1972-12-19 1973-12-04 Method of producing branched photo-conductive fiber bundles

Country Status (4)

Country Link
US (1) US3905852A (enrdf_load_stackoverflow)
JP (1) JPS4984456A (enrdf_load_stackoverflow)
DE (1) DE2361873A1 (enrdf_load_stackoverflow)
FR (1) FR2213507B3 (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100013A (en) * 1976-08-05 1978-07-11 Plastigage Corporation Apparatus for forming resin embedded antenna
US4154049A (en) * 1978-06-08 1979-05-15 Northern Telecom Limited Method and apparatus for forming optical cables
DE2922986A1 (de) * 1978-06-07 1979-12-20 Northern Telecom Ltd Verfahren und vorrichtung zur herstellung optischer kabel
EP0095043A1 (en) * 1982-05-26 1983-11-30 Vanzetti Systems, Inc. Fiber optic assembly for laser radiation
EP0185782A1 (en) * 1984-12-28 1986-07-02 International Business Machines Corporation Waveguide for an optical near-field microscope
EP0141369A3 (en) * 1983-10-28 1987-11-04 Kei Mori An integrated construction of a large number of optical conductor cables
US5011557A (en) * 1989-03-01 1991-04-30 Kurashiki Boseki Kabushiki Kaisha Method for forming joined section of optical branch fibers product, and apparatus therefor
WO1998058400A3 (en) * 1997-06-17 1999-04-01 Luxtron Corp Liquid etch endpoint detection and process metrology
EP0973040A3 (en) * 1998-07-17 2000-03-15 Aurora Biosciences Corporation Detector and screening device for ion channels
US6608671B2 (en) 1998-07-17 2003-08-19 Vertex Pharmaceuticals (San Diego) Llc Detector and screening device for ion channels

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7802553A (nl) * 1978-03-08 1979-09-11 Skf Ind Trading & Dev Magnetisch lagerstelsel.
DE3929285C3 (de) * 1989-09-04 1996-12-19 Wolf Gmbh Richard Endoskopoptik
CA2090717A1 (en) * 1992-03-03 1993-09-04 David M. Heffelfinger Fiber optic storage phosphor imaging plate scanner
JP3617576B2 (ja) * 1996-05-31 2005-02-09 倉敷紡績株式会社 光散乱体の光学測定装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741294A (en) * 1953-05-28 1956-04-10 Pancherz Hans Apparatus and method of manufacturing rods of glass fiber-reinforced plastic
US3193363A (en) * 1960-01-15 1965-07-06 American Optical Corp Light-conducting devices and apparatus for making the same
US3674452A (en) * 1970-06-25 1972-07-04 American Optical Corp Method of fabricating illuminated fiber optics
US3717531A (en) * 1971-03-31 1973-02-20 American Optical Corp Method and apparatus for making fused bundles of energy-conducting fibers
US3819442A (en) * 1972-04-04 1974-06-25 Us Health Education & Welfare Alignment techniques for fiber bundles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3554721A (en) * 1968-01-10 1971-01-12 Bendix Corp Method of making fiber optic bundles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741294A (en) * 1953-05-28 1956-04-10 Pancherz Hans Apparatus and method of manufacturing rods of glass fiber-reinforced plastic
US3193363A (en) * 1960-01-15 1965-07-06 American Optical Corp Light-conducting devices and apparatus for making the same
US3674452A (en) * 1970-06-25 1972-07-04 American Optical Corp Method of fabricating illuminated fiber optics
US3717531A (en) * 1971-03-31 1973-02-20 American Optical Corp Method and apparatus for making fused bundles of energy-conducting fibers
US3819442A (en) * 1972-04-04 1974-06-25 Us Health Education & Welfare Alignment techniques for fiber bundles

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100013A (en) * 1976-08-05 1978-07-11 Plastigage Corporation Apparatus for forming resin embedded antenna
DE2922986A1 (de) * 1978-06-07 1979-12-20 Northern Telecom Ltd Verfahren und vorrichtung zur herstellung optischer kabel
US4154049A (en) * 1978-06-08 1979-05-15 Northern Telecom Limited Method and apparatus for forming optical cables
EP0095043A1 (en) * 1982-05-26 1983-11-30 Vanzetti Systems, Inc. Fiber optic assembly for laser radiation
EP0141369A3 (en) * 1983-10-28 1987-11-04 Kei Mori An integrated construction of a large number of optical conductor cables
EP0185782A1 (en) * 1984-12-28 1986-07-02 International Business Machines Corporation Waveguide for an optical near-field microscope
US5011557A (en) * 1989-03-01 1991-04-30 Kurashiki Boseki Kabushiki Kaisha Method for forming joined section of optical branch fibers product, and apparatus therefor
US6406641B1 (en) 1997-06-17 2002-06-18 Luxtron Corporation Liquid etch endpoint detection and process metrology
WO1998058400A3 (en) * 1997-06-17 1999-04-01 Luxtron Corp Liquid etch endpoint detection and process metrology
EP0973040A3 (en) * 1998-07-17 2000-03-15 Aurora Biosciences Corporation Detector and screening device for ion channels
US6608671B2 (en) 1998-07-17 2003-08-19 Vertex Pharmaceuticals (San Diego) Llc Detector and screening device for ion channels
US20040051863A1 (en) * 1998-07-17 2004-03-18 Tsien Roger Y. Detector and screening device for ion channels
EP1403645A1 (en) * 1998-07-17 2004-03-31 Vertex Pharmaceuticals (San Diego) LLC Detector and screening device for ion channels
US7002671B2 (en) 1998-07-17 2006-02-21 Aurora Discovery, Inc. Detector and screening device for ion channels
US20060139624A1 (en) * 1998-07-17 2006-06-29 Aurora Discovery, Inc. Detector and screening device for ion channels
US7142290B2 (en) 1998-07-17 2006-11-28 Aurora Discovery, Inc. Detector and screening device for ion channels
US20070139639A1 (en) * 1998-07-17 2007-06-21 Aurora Discovery, Inc. Detector and screening device for ion channels

Also Published As

Publication number Publication date
JPS4984456A (enrdf_load_stackoverflow) 1974-08-14
FR2213507A1 (enrdf_load_stackoverflow) 1974-08-02
FR2213507B3 (enrdf_load_stackoverflow) 1978-03-17
DE2361873A1 (de) 1974-06-20

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