公开(公告)号：EP2821831A4

公开(公告)日：2015-11-04

申请号：EP13754503

申请日：2013-02-27

申请人： FUJIKURA LTD ,  NIPPON TELEGRAPH & TELEPHONE

发明人： ISAJI MIZUKI ,  SAJIMA YOSHIE ,  OSATO KEN ,  OKADA NAOKI ,  MATSUZAWA TAKASHI ,  TAKE YUKIKO ,  YAMADA YUSUKE ,  HAMAGUCHI SHINYA ,  KAKUTA DAISUKE ,  NAKANE HISAAKI

IPC分类号： G02B6/44

CPC分类号： G02B6/4403 ,  G02B6/4495

摘要： Provided is an optical fiber ribbon capable of concurrently ensuring mid-span access performance and cable production performance. The optical fiber ribbon 1 includes three or more optical fibers 2 arranged in parallel and connecting portions 3 connecting the adjacent optical fibers 2, the connecting portions 3 being formed intermittently in each of a ribbon longitudinal direction X and a ribbon width direction Y. The optical fiber ribbon 1 including the connecting portions 3 having split strength which is set in the range from 1.50 gf to 21.0 gf, contributes to exhibiting both the mid-span access performance and the cable production performance.

公开(公告)号：EP2770357A4

公开(公告)日：2015-06-24

申请号：EP12842552

申请日：2012-10-15

申请人： FUJIKURA LTD ,  NIPPON TELEGRAPH & TELEPHONE

发明人： NAMAZUE AKIRA ,  OSATO KEN ,  OKADA NAOKI ,  YAMADA YUSUKE ,  KAKUTA DAISUKE ,  NAKANE HISAAKI ,  HAMAGUCHI SHINYA

IPC分类号： G02B6/44

CPC分类号： G02B6/4403 ,  G02B6/2551 ,  G02B6/2555 ,  G02B6/3636 ,  G02B6/4404 ,  G02B6/4405 ,  G02B6/441 ,  G02B6/443 ,  G02B6/448 ,  G02B6/4482 ,  G02B6/4489

摘要： Provided is an optical fiber ribbon capable of achieving higher density and reduction in diameter and accurately placing optical fibers in V-shape grooves in a fusion machine without failure. The optical fiber ribbon 1 includes three or more of optical fibers 2 arranged in parallel and connecting portions 3 each connecting adjacent two optical fibers 2 together, the connecting portions 3 being intermittently provided in each of a ribbon longitudinal direction and a ribbon width direction. The optical fiber ribbon 1 has an outer diameter dimension of the optical fibers 2 which is set to smaller than or equal to 220 µm, and has a distance between the centers of the adjacent two optical fibers which is set to 250±30 µm.

公开(公告)号：EP2995980A4

公开(公告)日：2016-12-14

申请号：EP14794615

申请日：2014-04-28

申请人： FUJIKURA LTD ,  NIPPON TELEGRAPH & TELEPHONE

发明人： SAJIMA YOSHIE ,  MATSUZAWA TAKASHI ,  ISAJI MIZUKI ,  OSATO KEN ,  OKADA NAOKI ,  NAKANE HISAAKI ,  YAMADA YUSUKE ,  KAKUTA DAISUKE ,  HAMAGUCHI SHINYA ,  SHIBATA YUKIHIKO

IPC分类号： G02B6/44

CPC分类号： G02B6/4404 ,  G02B6/4495 ,  G02B6/4498

摘要： Provide is an optical fiber ribbon whereby a tape forming member can be easily removed after single core separation. The present invention is provided with: a plurality of optical fiber cores (10a, 10b) arranged in parallel spaced from each other; and a tape forming member (20) having coating portions (21a, 21b) covering an outer circumference of the optical fiber cores (10a, 10b), and a coupling portion (22a), integrally formed with the coating portions (21a, 21b), intermittently coupling adjacent optical fiber cores (10a, 10b), wherein the coating portions (21a, 21b) have opening portions (31, 32) to expose parts of surfaces of the optical fiber cores (10a, 10b), and at least a part of the coating portions (21a, 21b) is continuous in a longitudinal direction of the optical fiber cores (10a, 10b).

公开(公告)号：EP2717082A4

公开(公告)日：2015-02-18

申请号：EP12794117

申请日：2012-05-28

申请人： FUJIKURA LTD ,  NIPPON TELEGRAPH & TELEPHONE

发明人： NAMAZUE AKIRA ,  TAKE YUKIKO ,  MATSUZAWA TAKASHI ,  OSATO KEN ,  OKADA NAOKI ,  YAMADA YUSUKE

IPC分类号： G02B6/44

CPC分类号： G02B6/4403 ,  G02B6/44 ,  G02B6/448 ,  Y10T29/49826

摘要： It is an object of the present invention to suppress a coating resin from being shaved off in an event where optical fibers are sent out from a coating dice. When a Young's modulus of ultraviolet curable resins 13 located on outermost layers of optical fibers 3 is 300 MPa or more, and the Young's modulus is 300 MPa to 600 MPa, a plurality of the optical fibers 3 in which friction force measured by the following measurement method is 0.3 N or less are arranged in parallel to one another, these respective optical fibers 3 are fixed to one another intermittently along a longitudinal direction thereof, and adhered portions 5 are formed. A ring 30a is formed of an optical fiber specimen 30, an end portion 30b on one end side of the optical fiber specimen 30 is inserted into the ring 30a so as to make a knot, and a contact portion 30d in which portions of the resin are brought into contact with each other is formed. In this state, the respective end portions 30b, 30c on both sides of the ring 30a are grasped and pulled in a direction of being spaced apart from each other, and friction force between the portions of the resin at the contact portion 30d at this pulling time is measured.

摘要翻译： 它是本发明的从在其中光纤从一个涂层骰子发送出的事件被剃掉在抑制涂层树脂的一个目的。 当位于光学纤维3的最外层的紫外线固化树脂13的杨氏模量为300MPa以上，且杨氏模量为300MPa至600MPa的，通过以下的测定测定在哪个摩擦力光纤3的多元 方法是为0.3N或更少的平行布置成彼此，论文respectivement光学纤维3间歇地沿其长度方向彼此固定，并粘附部分5形成。 甲环30a被在端部30b上的光纤样本30被插入到环30a中，使一个结的一端侧，并且在树脂的哪些部分的接触部分30d形成的光纤试样30的 抵接海誓山盟形成。 在该状态下，respectivement端部30b，在环30a的bothsides 30C是抓住并在从海誓山盟隔开的方向上拉伸，在此接触部30d中的树脂的部分之间的摩擦力拉动 时间测量。