JPS5639505A - Ultrafine fiber optical element and its production - Google Patents

Ultrafine fiber optical element and its production

Info

Publication number
JPS5639505A
JPS5639505A JP11517279A JP11517279A JPS5639505A JP S5639505 A JPS5639505 A JP S5639505A JP 11517279 A JP11517279 A JP 11517279A JP 11517279 A JP11517279 A JP 11517279A JP S5639505 A JPS5639505 A JP S5639505A
Authority
JP
Japan
Prior art keywords
island
bodies
sea
filamentlike
filmlike
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.)
Pending
Application number
JP11517279A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Okamoto
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP11517279A priority Critical patent/JPS5639505A/en
Publication of JPS5639505A publication Critical patent/JPS5639505A/en
Pending 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
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
    • G02B6/06—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE:To achieve the improvement in resolution by forming the parts corresponding to island into core pod structure in the section comprising spun filamentlike bodies and filmlike bodies and having sea-island relations, making the refractive indexes of the cores larger than those of the pods, making them transparent and mutually arranging these in the fiber axis direction. CONSTITUTION:Plural components are spun (extruded) in a molten state. At this time, before the above-mentioned plural components emit from a mouthpiece or before they do not yet sufficiently complete solidification after emitting from the mouthpiece, they are taken up as the filamentlike bodies or filmlike bodies having sea-island relations without disturbing the sea-island relations. If necessary, they are elongated and further the components corresponding to said island are provided with core pod structure, wherein the refractive indexes of the cores A are made larger than those of pods B. The thus taken-up filamentlike body or filmlike body is cut to a required length and is cut to a surface sufficiently flat to obtain images as necessary optical element, whereby said element is produced. The cores of higher refractive indexes and higher transparency are more preferable. For example, they are polymethyl methacrylate, polystyrene, etc. Materials that can be melt-discharged are selected for the sea component C.
JP11517279A 1979-09-10 1979-09-10 Ultrafine fiber optical element and its production Pending JPS5639505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11517279A JPS5639505A (en) 1979-09-10 1979-09-10 Ultrafine fiber optical element and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11517279A JPS5639505A (en) 1979-09-10 1979-09-10 Ultrafine fiber optical element and its production

Publications (1)

Publication Number Publication Date
JPS5639505A true JPS5639505A (en) 1981-04-15

Family

ID=14656121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11517279A Pending JPS5639505A (en) 1979-09-10 1979-09-10 Ultrafine fiber optical element and its production

Country Status (1)

Country Link
JP (1) JPS5639505A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS623206A (en) * 1985-06-28 1987-01-09 Mitsubishi Rayon Co Ltd Optical transmission type aggregated fiber
JPS636406U (en) * 1986-07-01 1988-01-16
JPS6486103A (en) * 1986-09-22 1989-03-30 Mitsubishi Rayon Co Multiple optical fiber made of plastic and its production
JPH01126603A (en) * 1987-11-12 1989-05-18 Mitsubishi Rayon Co Ltd Optical fiber line light
JPH01193703A (en) * 1986-09-22 1989-08-03 Mitsubishi Rayon Co Ltd Multifilament type plastic optical fiber
EP0427232A2 (en) * 1989-11-08 1991-05-15 Mitsubishi Rayon Co., Ltd Multifilament type optical fiber and process for preparation thereof
EP0621496A1 (en) * 1992-09-30 1994-10-26 Asahi Kasei Kogyo Kabushiki Kaisha Hollow multicore optical fiber and manufacture thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556635A (en) * 1967-05-23 1971-01-19 Dow Chemical Co Fiber optic bundle
JPS5139557A (en) * 1974-10-02 1976-04-02 Hitachi Ltd Atsuenrooruno jikukesochakusochi

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556635A (en) * 1967-05-23 1971-01-19 Dow Chemical Co Fiber optic bundle
JPS5139557A (en) * 1974-10-02 1976-04-02 Hitachi Ltd Atsuenrooruno jikukesochakusochi

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS623206A (en) * 1985-06-28 1987-01-09 Mitsubishi Rayon Co Ltd Optical transmission type aggregated fiber
JPS636406U (en) * 1986-07-01 1988-01-16
JPS6486103A (en) * 1986-09-22 1989-03-30 Mitsubishi Rayon Co Multiple optical fiber made of plastic and its production
JPH01193703A (en) * 1986-09-22 1989-08-03 Mitsubishi Rayon Co Ltd Multifilament type plastic optical fiber
JPH01126603A (en) * 1987-11-12 1989-05-18 Mitsubishi Rayon Co Ltd Optical fiber line light
EP0427232A2 (en) * 1989-11-08 1991-05-15 Mitsubishi Rayon Co., Ltd Multifilament type optical fiber and process for preparation thereof
EP0621496A1 (en) * 1992-09-30 1994-10-26 Asahi Kasei Kogyo Kabushiki Kaisha Hollow multicore optical fiber and manufacture thereof
EP0621496A4 (en) * 1992-09-30 1995-02-08 Asahi Chemical Ind Hollow multicore optical fiber and manufacture thereof.
US5471553A (en) * 1992-09-30 1995-11-28 Asahi Kasei Kogyo Kabushiki Kaisha Multicore hollow optical fiber and a method for preparation thereof

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