WO2012165371A1 - 光ファイバテープ心線の製造方法及びその製造方法で製造した光ファイバテープ心線 - Google Patents
光ファイバテープ心線の製造方法及びその製造方法で製造した光ファイバテープ心線 Download PDFInfo
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- WO2012165371A1 WO2012165371A1 PCT/JP2012/063617 JP2012063617W WO2012165371A1 WO 2012165371 A1 WO2012165371 A1 WO 2012165371A1 JP 2012063617 W JP2012063617 W JP 2012063617W WO 2012165371 A1 WO2012165371 A1 WO 2012165371A1
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- WIPO (PCT)
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- optical fiber
- resin
- mpa
- manufacturing
- optical fibers
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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
- G02B6/44—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
-
- 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
-
- 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
- G02B6/448—Ribbon cables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
Definitions
- the present invention relates to a method of manufacturing an optical fiber ribbon in which a plurality of optical fibers coated with a resin are arranged in parallel and each of these optical fibers is intermittently fixed along the length direction thereof.
- Optical fiber tape cores used for optical fiber cables are made of optical fiber or optical fiber core by coating the outer periphery of bare optical fiber (glass fiber) with resin. These are arranged in parallel and covered with a collective coating layer to form a tape. Thereby, the efficiency of the operation
- the optical fiber tape core wire formed by such collective coating has a mounting density lowered by the amount of the tape-like collective coating resin, and the bending direction is restricted in the design of the optical fiber cable. For this reason, in particular, in the optical fiber cable of a relatively small core system (several tens or hundreds of cores) for which the demand for high density and thin diameter is increasing, the optical fiber tape core is not a single core. This is disadvantageous compared to the ultimate mounting form for high density and narrow diameter as if they were simply assembled.
- the optical fiber ribbon described in Patent Document 1 below is mounted by fixing a plurality of optical fibers arranged in parallel intermittently (partially) along the length direction thereof. It is suppressing that the density fall and the bending direction are regulated.
- the manufacture of an optical fiber ribbon that is intermittently fixed is performed by feeding a plurality of optical fibers arranged in parallel with a resin coating layer through an optical fiber insertion hole that is opened on the exit surface of the coating die. At this time, by discharging a damming member such as a shutter or a disk between adjacent optical fiber insertion holes, discharging of the resin used for intermittent fixation and damming are alternately performed.
- a damming member such as a shutter or a disk between adjacent optical fiber insertion holes
- the resin covering the bare optical fiber may be scraped off by being rubbed at the exit portion of the coating die.
- an object of the present invention is to prevent the coating resin from being scraped when the optical fiber is sent out from the coating die.
- the invention of claim 1 is a method of manufacturing an optical fiber ribbon in which a plurality of optical fibers coated with resin are arranged in parallel and each of these optical fibers is intermittently fixed along the length direction thereof.
- a plurality of optical fibers having a Young's modulus of the outermost layer resin to be coated of 300 MPa or more are arranged in parallel, and these optical fibers are intermittently connected to each other along the length direction thereof. .
- Invention of Claim 2 is a manufacturing method of the optical fiber ribbon of Claim 1, Comprising: When the Young's modulus of the resin of the outermost layer to coat
- optical fiber ribbon of the invention of claim 3 is manufactured by the method of manufacturing an optical fiber ribbon of claim 1 or 2.
- the slipping property of the resin to be coated in the optical fiber is increased in consideration of the Young's modulus of the resin, it is possible to prevent the coating resin from being scraped when the optical fiber is sent out from the coating die. .
- FIG. 2 is an enlarged AA sectional view of FIG. 1. It is explanatory drawing which showed the measuring method of the frictional force of an optical fiber later on from (a) to (d). It is a perspective view which shows the manufacturing apparatus of the optical fiber ribbon of FIG.
- an optical fiber ribbon (hereinafter referred to as a tape ribbon) 1 of an optical fiber cable is configured by arranging a plurality of optical fibers 3 in parallel. Yes, here a total of N optical fibers 3 are used. Among these N optical fibers 3, two adjacent optical fibers 3 are intermittently fixed along the longitudinal direction of the optical fiber 3 by adhesive portions 5 serving as a plurality of fixing portions. A plurality of bonding portions 5 provided along the longitudinal direction form separation portions 7 where the optical fibers 3 are not bonded to each other.
- the bonded portions 51 to 2 of No. 1 and No. 2 of the optical fiber 3 and the bonded portions 52 to 3 of No. 2 and No. 3 of the optical fiber 3 are in the longitudinal direction of the optical fiber 3. It is set as the position shifted so that it may become alternate along.
- the bonded portions 5 (N-2) to (N-1) of No. N-2 and No. N-1 of the optical fiber 3 and No. N-1 and No. N of the optical fiber 3 are used.
- the adhering portions 5 (N-1) to N are offset from each other along the longitudinal direction of the optical fiber 3.
- the bonding portions 5 between the two optical fibers 3 are positioned so that those adjacent to each other in the parallel arrangement direction of the optical fibers 3 are staggered along the longitudinal direction of the optical fiber 3. .
- the optical fiber 3 includes a quartz glass fiber 9, a soft resin 11 covering the outer periphery of the glass fiber 9, and an ultraviolet curing covering the outer periphery of the soft resin 11.
- An optical fiber composed of the resin 13 is used.
- the two optical fibers 3 are connected and fixed by the above-described adhesive portions 5 formed on both the front and back sides.
- the ultraviolet curable resin 13 described above is a resin in the outermost layer in a state before the adjacent optical fibers 3 are intermittently fixed by the bonding portion 5.
- the optical fiber 3 may be an optical fiber core wire in which a resin such as colored ink is coated on the outer periphery of the optical fiber strand instead of the above-described optical fiber strand.
- resin such as colored ink becomes the resin of the outermost layer of the optical fiber core wire in a state before the optical fibers 3 are intermittently fixed by the bonding portion 5.
- a tape core wire manufacturing apparatus provided with a coating die 17 (FIG. 4) described later is used.
- the ultraviolet curable resin 13 is rubbed at the exit portion and scraped. In order to suppress this, the slip property of the ultraviolet curable resin 13 is increased.
- the UV curable resin 13 of the optical fiber 3 here must have a Young's modulus of 300 MPa or more.
- Young's modulus is 300 MPa or more and less than 600 MPa, it is measured by the following measurement method.
- the frictional force is 0.3 N or less.
- a method for measuring the frictional force will be described.
- a single ring 30a having a diameter of 7 cm is formed by an optical fiber specimen 30 having a predetermined length for evaluation used in the optical fiber 3, and one side of the optical fiber specimen 30 is formed.
- the end 30b is inserted into the ring 30a so as to form a knot.
- This insertion operation is performed again as shown in FIG. 3C and repeated twice to form a contact portion 30d where the ultraviolet curable resins 13 contact each other as shown in FIG. 3D.
- the one end 30b and the other end 30c of the ring 30a of the optical fiber specimen 30 are respectively gripped by a tensile tester (not shown), and the ring 30a. Are pulled away from each other (in the vertical direction in FIG. 3 (d)) so that the diameter of each becomes smaller.
- the pulling speed at that time is 5 mm / min, the pulling time is 2 minutes, and the average load value (surface friction force) of the pulling force is the friction force of the ultraviolet curable resin 13.
- Table 1 shows the relationship between the frictional force (N) of the ultraviolet curable resin 13 and the Young's modulus (MPa), and the tape core wire 1 is manufactured to 5 km by a tape core wire manufacturing apparatus described later.
- “X” indicates a case where the scraped residue of the outermost ultraviolet curable resin 13 is generated, and “ ⁇ ” indicates a case where the scraped residue is not generated.
- the feeding speed of the optical fiber 3 in the tape core manufacturing apparatus is 120 m / min
- the rotation speed of the disk 27 as a damming member is 400 rpm
- the length M of the part 7 is 200 mm
- the length of one pitch of the bonding part 5 is 300 mm.
- the UV curable resin 13 must have a Young's modulus of at least 300 MPa or more, and when the Young's modulus is 300 MPa or more and less than 600 MPa, the frictional force measured by the measurement method described above is 0.3 N or less.
- the ultraviolet curable resin used for the ultraviolet curable resin 13 is basically composed of a radical polymerizable oligomer containing an unsaturated group (for example, acryloyl group), a reactive monomer as a reactive diluent, and a polymerization initiator. It is contained as a component, and various additives (pigments, UV absorbers, light stabilizers, polymerization inhibitors, silane coupling agents, leveling agents, lubricants, oxidation stabilizers, anti-aging agents, storage stabilizers, etc.), etc. Is blended in the required amount.
- the ultraviolet curable resin is mainly selected by selecting the kind of radical polymerizable oligomer, the structure, the molecular weight, and the type of reactive monomer, polymerization initiator and various additives, and the radical polymerizable oligomer and reactive monomer. Various characteristics can be adjusted by adjusting the blending ratio of the polymerization initiator and various additives.
- the Young's modulus and the frictional force of the surface of the outermost resin layer of the optical fiber 3 also have desired characteristics suitable for this embodiment. You can get things.
- the tape core manufacturing apparatus aligns a plurality of optical fibers 3 and performs the fiber aligning / resin supplying step for supplying the uncured ultraviolet curable resin as described above. It has.
- two spot ultraviolet lamps 19 which are resin curing energy irradiation devices for performing a resin curing process for curing an uncured ultraviolet curing resin by energy irradiation, and a coating And a concentrating roll 21 for concentrating a plurality of optical fibers 3 sent out from a die 17.
- a resin removing means 23 and a brush cleaning means 25 are installed below the coating die 17.
- the coating die 17 has a resin storage chamber (not shown) in which uncured ultraviolet curable resin is stored.
- a plurality of optical fiber insertion holes 17 b communicating with the resin storage chamber are opened on the outlet surface 17 a of the coating die 17. Through the plurality of optical fiber insertion holes 17b, the plurality of optical fibers 3 that have passed through the resin storage chamber are aligned and sent out. Adjacent optical fiber insertion holes 17b communicate with each other through a narrow communication hole (not shown).
- an uncured ultraviolet curable resin is formed on the outer peripheral surface of the ultraviolet curable resin 13 which is a resin of the outermost layer of each optical fiber 3.
- an adhesive portion 5 is formed to form the tape core wire 1. That is, in the tape core wire 1, the bonding portion 5 located on the outer periphery of the ultraviolet curable resin 13 is the outermost layer resin.
- each disk groove portion 17c intersects the communication hole (not shown) between the adjacent optical fiber insertion holes 17b, and the ultraviolet curable resin can be discharged from the optical fiber insertion hole 17b through the communication hole.
- the plurality of disks 27 that are damming members are arranged in a state in which a part (the rear side and the upper side in the feed direction of the optical fiber 3) enters each disk groove 17c.
- Central portions of the plurality of disks 27 are fixed to the same rotation shaft 29, and the rotation shaft 29 is rotationally driven by a first drive source 31.
- the rotating shaft 29 is rotated by the power of the first drive source 31, the plurality of disks 27 rotate together in the arrow B direction.
- a notch 27a is provided on the outer periphery of each disk 27.
- the rotation locus of the notch 27a is set so as to pass through a position corresponding to the communication hole (not shown) between the adjacent optical fiber insertion holes 17b.
- the ultraviolet curing property through the communication holes from the adjacent optical fiber insertion holes 17b. Stops resin discharge.
- the ultraviolet curable resin is discharged from the adjacent optical fiber insertion holes 17b through the communication holes.
- the resin removing means 23 includes a brush 33 that is a scraping member extending radially from the rotation center, a rotation shaft 35 to which a central portion (base end portion) of the brush 33 is fixed, and a second that drives the rotation shaft 35 to rotate. And a drive source 37.
- the rotating brush 33 contacts the outer peripheral edge of each disk 27 and scrapes off the ultraviolet curable resin adhering to each disk 27.
- the brush cleaning means 25 is a solution tank containing a detergent such as alcohol.
- the solution tank (brush cleaning means) 25 is installed on the rotation locus of the brush 33. When the rotating brush 33 comes into contact with the disk 27, the ultraviolet curable resin adhering to the surface of the disk 27 is scraped by the brush 33, and the ultraviolet curable resin adhering to the brush 33 is removed with the detergent in the solution tank 25.
- the spot ultraviolet lamp 19 is located between the exit surface 17a of the coating die 17 and a portion where the optical fibers 3 are concentrated and contacted so that the optical fibers 3 are parallel to each other, and the Y direction corresponding to the length direction of the optical fiber 3 (optical fiber 3). In two feeding directions).
- the two spot ultraviolet lamps 19 irradiate resin curing energy necessary for curing the uncured ultraviolet curable resin.
- the installation position and the number of the spot ultraviolet lamps 19 are not limited to those shown in FIG. 4.
- the spot ultraviolet lamps 19 may be arranged at three or more appropriate positions between the coating die 17 and the concentrator roll 21.
- the irradiation direction of the ultraviolet rays is not limited to the Z direction in FIG. In that case, you may combine the direction from which the irradiation direction of an ultraviolet-ray differs.
- the ultraviolet lamp is not limited to the spot type, and a lamp having a relatively long shape such as a fluorescent tube may be used. And while changing the installation position, the number, and the type of these ultraviolet lamps as appropriate, and adjusting the ultraviolet irradiation amount as appropriate, the curing of the uncured ultraviolet curable resin is made sufficient.
- the optical fiber insertion hole 17b which is the exit portion of the coating die 17, is sent out.
- the outer peripheral surface is rubbed against the periphery of the opening. Factors that are rubbed include vibration due to the rotation of the disk 27, vibration when the cutout portion 27a of the disk 27 passes through the connecting hole of the fiber insertion hole 17b, and pulsation (vibration due to a minute change in the amount of UV curable resin applied). ), The optical fiber 3 is swung and is inevitably generated.
- the ultraviolet curable resin 13 of the optical fiber 3 has a Young's modulus of at least 300 MPa or more as described above, and when the Young's modulus is 300 MPa or more and less than 600 MPa.
- the sliding force of the ultraviolet curable resin 13 is enhanced by setting the frictional force measured by the above measuring method to 0.3 N or less.
- the UV curable resin 13 having a high slidability and being easy to slip does not cause scraping as shown in Table 1 above. It can suppress, and it can suppress that the ultraviolet curable resin 13 is shaved.
- the disk 27 is used as a damming member.
- other than the disk 27 such as a shutter that moves up and down. Can also be used.
- the diameter of the ring 30a is 7 cm.
- the diameter is not limited to 7 cm and may be slightly smaller or larger.
- the diameter of the ring 30a is too small, the optical fiber specimen 30 is broken, which is not preferable.
- the diameter of the ring 30a is too large, the setting operation to the test apparatus becomes difficult and workability deteriorates. It is not preferable.
- By setting the distance to 7 cm it is possible to perform measurement with higher accuracy while suppressing breakage of the optical fiber specimen 30 and facilitating the setting work on the test apparatus.
- the operation of inserting the end 30b on one side of the optical fiber specimen 30 into the ring 30a is repeated twice.
- 30d is formed, it is not limited to twice.
- the number is too large, workability is deteriorated and high-accuracy measurement becomes difficult. This is not preferable because high-precision measurement is difficult only once.
- the one end 30 b and the other end 30 c of the optical fiber specimen 30 are moved at a speed of 5 mm / min.
- pulling speed and time may be slightly different. By pulling for 2 minutes at a speed of 5 mm / min, higher-precision measurement is possible.
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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)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
Description
Claims (3)
- 樹脂で被覆した複数本の光ファイバを並列配置してこれら各光ファイバ相互をその長さ方向に沿って間欠的に固定した光ファイバテープ心線の製造方法であって、前記被覆する最外層の樹脂のヤング率が300MPa以上である複数本の光ファイバを、並列配置してこれら各光ファイバ相互をその長さ方向に沿って間欠的に接続することを特徴とする光ファイバテープ心線の製造方法。
- 前記被覆する最外層の樹脂のヤング率が300MPa以上、600MPa未満のときには、前記被覆する最外層の樹脂の摩擦力が0.3N以下である複数本の光ファイバを、並列配置してこれら各光ファイバ相互をその長さ方向に沿って間欠的に接続することを特徴とする請求項1に記載の光ファイバテープ心線の製造方法。
- 請求項1または2に記載の光ファイバテープ心線の製造方法で製造したことを特徴とする光ファイバテープ心線。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12794117.7A EP2717082B1 (en) | 2011-06-03 | 2012-05-28 | Manufacturing method of an optical fiber ribbon |
CN201280026706.4A CN103608710B (zh) | 2011-06-03 | 2012-05-28 | 光纤带芯线的制造方法及用该制造方法制造的光纤带芯线 |
BR112013031105A BR112013031105A2 (pt) | 2011-06-03 | 2012-05-28 | método de fabricação de fita de fibra ótica, e fita de fibra ótica fabricada pelo método de fabricação |
AU2012263547A AU2012263547B2 (en) | 2011-06-03 | 2012-05-28 | Manufacturing Method of Optical Fiber Ribbon, and Optical Fiber Ribbon Manufactured by the Manufacturing Method |
NZ618588A NZ618588B2 (en) | 2011-06-03 | 2012-05-28 | Manufacturing method of optical fiber ribbon, and optical fiber ribbon manufactured by the manufacturing method |
CA2837689A CA2837689C (en) | 2011-06-03 | 2012-05-28 | Manufacturing method of optical fiber ribbon, and optical fiber ribbon manufactured by the manufacturing method |
US14/094,308 US9086555B2 (en) | 2011-06-03 | 2013-12-02 | Manufacturing method of optical fiber ribbon, and optical fiber ribbon manufactured by the manufacturing method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2011125290A JP5309189B2 (ja) | 2011-06-03 | 2011-06-03 | 光ファイバテープ心線の製造方法及びその製造方法で製造した光ファイバテープ心線 |
JP2011-125290 | 2011-06-03 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US14/094,308 Continuation US9086555B2 (en) | 2011-06-03 | 2013-12-02 | Manufacturing method of optical fiber ribbon, and optical fiber ribbon manufactured by the manufacturing method |
Publications (1)
Publication Number | Publication Date |
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WO2012165371A1 true WO2012165371A1 (ja) | 2012-12-06 |
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Family Applications (1)
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PCT/JP2012/063617 WO2012165371A1 (ja) | 2011-06-03 | 2012-05-28 | 光ファイバテープ心線の製造方法及びその製造方法で製造した光ファイバテープ心線 |
Country Status (9)
Country | Link |
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US (1) | US9086555B2 (ja) |
EP (1) | EP2717082B1 (ja) |
JP (1) | JP5309189B2 (ja) |
CN (1) | CN103608710B (ja) |
AU (1) | AU2012263547B2 (ja) |
BR (1) | BR112013031105A2 (ja) |
CA (1) | CA2837689C (ja) |
TW (1) | TWI540354B (ja) |
WO (1) | WO2012165371A1 (ja) |
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- 2012-05-28 AU AU2012263547A patent/AU2012263547B2/en active Active
- 2012-05-28 CN CN201280026706.4A patent/CN103608710B/zh active Active
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US8548294B2 (en) * | 2008-06-30 | 2013-10-01 | Nippon Telegraph And Telephone Corporation | Optical fiber cable and optical fiber ribbon |
US20110110635A1 (en) * | 2008-06-30 | 2011-05-12 | Kunihiro Toge | Optical fiber cable and optical fiber ribbon |
US9389382B2 (en) | 2014-06-03 | 2016-07-12 | Corning Optical Communications LLC | Fiber optic ribbon cable and ribbon |
US10185105B2 (en) | 2016-07-27 | 2019-01-22 | Prysmian S.P.A. | Flexible optical-fiber ribbon |
US10983297B2 (en) | 2017-07-11 | 2021-04-20 | Prysmian S.P.A. | Optical fiber ribbon and a method of producing the same |
US11131816B2 (en) | 2017-07-11 | 2021-09-28 | Prysmian S.P.A. | Optical fiber ribbon assembly and a method of producing the same |
US11169342B2 (en) | 2018-01-15 | 2021-11-09 | Prysmian S.P.A. | Flexible optical-fiber ribbon |
US10782495B2 (en) | 2018-01-15 | 2020-09-22 | Prysmian S.P.A. | Flexible optical-fiber ribbon |
US11256051B2 (en) | 2018-01-15 | 2022-02-22 | Prysmian S.P.A. | Flexible optical-fiber ribbon |
US11500171B2 (en) | 2018-01-15 | 2022-11-15 | Prysmian S.P.A. | Optical fiber ribbon and a method and system of producing the same |
US11656417B2 (en) | 2018-01-15 | 2023-05-23 | Prysmian S.P.A. | Flexible optical-fiber ribbon |
US12001070B2 (en) | 2018-01-15 | 2024-06-04 | Prysmian S.P.A. | Flexible optical-fiber ribbon |
US11262516B2 (en) | 2018-07-05 | 2022-03-01 | Prysmian S.P.A. | High density optical cables |
US11796750B2 (en) | 2018-07-05 | 2023-10-24 | Prysmian S.P.A. | High density optical cables |
US10884213B1 (en) | 2019-11-14 | 2021-01-05 | Prysmian S.P.A. | Optical-fiber ribbon with distorted sinusoidal adhesive pattern and method therefor |
US11442238B2 (en) | 2020-12-22 | 2022-09-13 | Prysmian S.P.A. | Optical-fiber ribbon with spaced optical-fiber units |
US11460652B2 (en) | 2020-12-22 | 2022-10-04 | Prysmian S.P.A. | Optical-fiber ribbon with adhesive-free gaps |
US11860429B2 (en) | 2020-12-22 | 2024-01-02 | Prysmian S.P.A. | Optical-fiber ribbon with spaced optical-fiber units |
Also Published As
Publication number | Publication date |
---|---|
EP2717082A1 (en) | 2014-04-09 |
AU2012263547A1 (en) | 2013-12-19 |
AU2012263547B2 (en) | 2015-05-14 |
BR112013031105A2 (pt) | 2016-12-06 |
TW201303404A (zh) | 2013-01-16 |
JP2012252198A (ja) | 2012-12-20 |
CA2837689A1 (en) | 2012-12-06 |
US9086555B2 (en) | 2015-07-21 |
CN103608710B (zh) | 2016-06-01 |
NZ618588A (en) | 2015-07-31 |
EP2717082B1 (en) | 2019-11-06 |
US20140112631A1 (en) | 2014-04-24 |
TWI540354B (zh) | 2016-07-01 |
CN103608710A (zh) | 2014-02-26 |
CA2837689C (en) | 2017-01-03 |
JP5309189B2 (ja) | 2013-10-09 |
EP2717082A4 (en) | 2015-02-18 |
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