JPS5657008A - Optical flat cable - Google Patents

Optical flat cable

Info

Publication number
JPS5657008A
JPS5657008A JP13397679A JP13397679A JPS5657008A JP S5657008 A JPS5657008 A JP S5657008A JP 13397679 A JP13397679 A JP 13397679A JP 13397679 A JP13397679 A JP 13397679A JP S5657008 A JPS5657008 A JP S5657008A
Authority
JP
Japan
Prior art keywords
fibers
coat
confusion
ratio
prevent
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
JP13397679A
Other languages
Japanese (ja)
Inventor
Fumihiro Nihei
Yuji Kameo
Toru Yamanishi
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.)
Sumitomo Electric Industries Ltd
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries 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 Telegraph and Telephone Corp, Sumitomo Electric Industries Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP13397679A priority Critical patent/JPS5657008A/en
Publication of JPS5657008A publication Critical patent/JPS5657008A/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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4403—Optical cables with ribbon structure

Landscapes

  • Physics & Mathematics (AREA)
  • Insulated Conductors (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE: To make the actual packing density of optical fibers maximum, facilitate terminal processing, and prevent the confusion of arrangement by arranging the fibers in two or more layers, adjusting the ratio of the number of the laterally arranged fibers to the number of the longitudinally arranged fibers to ≥3, and covering the fibers with an outer coat having grooves without adhesion.
CONSTITUTION: Optical fibers 1 are arranged so as to adjust the ratio of the number (n) of laterally arranged fibers 1 to the number (m) of longitudinally arranged fibers 1 to ≥3 and the number (m) to ≥2. Fibers 1 are then covered with outer coat 2 made of thermoplastic resin and having inside grooves 5. Fibers 1 are not adhered to each other and to coat 2. This filled structure of the highest density makes the number of fibers 1 actually packed per unit area maximum. When terminal processing is carried out, by applying lateral pressure in the arrow 4 directions, coat 2 is raised, so by tearing coat 2 with an edge tool, fibers 1 can be separated easily. Inside grooves 5 of coat 2 prevent the confusion of the fiber arrangement.
COPYRIGHT: (C)1981,JPO&Japio
JP13397679A 1979-10-16 1979-10-16 Optical flat cable Pending JPS5657008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13397679A JPS5657008A (en) 1979-10-16 1979-10-16 Optical flat cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13397679A JPS5657008A (en) 1979-10-16 1979-10-16 Optical flat cable

Publications (1)

Publication Number Publication Date
JPS5657008A true JPS5657008A (en) 1981-05-19

Family

ID=15117467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13397679A Pending JPS5657008A (en) 1979-10-16 1979-10-16 Optical flat cable

Country Status (1)

Country Link
JP (1) JPS5657008A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58126506A (en) * 1982-01-22 1983-07-28 Nippon Telegr & Teleph Corp <Ntt> Multilayer piled type rectangular optical core

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494678A (en) * 1978-01-10 1979-07-26 Fujikura Ltd Flat cable

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494678A (en) * 1978-01-10 1979-07-26 Fujikura Ltd Flat cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58126506A (en) * 1982-01-22 1983-07-28 Nippon Telegr & Teleph Corp <Ntt> Multilayer piled type rectangular optical core

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