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公开(公告)号：US11105992B2
公开(公告)日：2021-08-31
申请号：US17014722
申请日：2020-09-08
IPC分类号： G02B6/44
摘要： Provided is an optical fiber ribbon and an optical fiber cable, which are adaptable to manufacture at a high velocity, in the intermittent connecting type optical fiber ribbon obtained by adhering and connecting adjacent colored optical fibers by intermittent connecting portions. In an optical fiber ribbon 2 of the present invention, since, in addition to polyol having a weight average molecular weight in a specific range, rheology control agent is contained in a specific range in a material forming an intermittent connecting portion 3, the Newtonian region between a low shear rate region and a high shear rate region of the material forming the intermittent connecting portion 3 can be adjusted. Thus, scattering of the material due to a centrifugal force generated by rotation of an application roll that applies the material at the time of manufacture and the like can be suppressed, and the application amount to colored optical fiber 1 can be stabilized. In addition, the optical fiber ribbon 2 can maintain suppression of such scattering and the like even in the manufacture at a high linear velocity.
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公开(公告)号：US11036024B2
公开(公告)日：2021-06-15
申请号：US16428739
申请日：2019-05-31
发明人： Hiroki Tanaka , Kenji Yokomizo , Tomohiro Ishimura , Yutaka Hoshino , Masaki Iwama , Eisuke Otani , Shunichi Matsushita , Yoshihiro Arashitani , Takeshi Yagi
摘要： A method for manufacturing an intermittent bonding type optical fiber ribbon which is capable of forming non-connection portions and intermittent connection portions between adjacent coated optical fibers formed into an optical fiber ribbon by performing a laser processing for the ribbon through irradiation with a pulse laser light, thereby making it possible to rapidly form the intermittent connection portions and the non-connection portions while maintaining high linear velocity of the coated optical fiber. The non-connection portions and the intermittent connection portions are formed in the obtained intermittent bonding type optical fiber ribbon through the irradiation with the pulse laser light, so the intermittent bonding type optical fiber ribbon becomes the intermittent bonding type optical fiber ribbon, which is capable of securing operability during collective connection and surely being subjected to an intermediate branching without damaging cable characteristics during high density mounting.
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公开(公告)号：US10882783B2
公开(公告)日：2021-01-05
申请号：US15995796
申请日：2018-06-01
发明人： Hiroki Tanaka , Yutaka Hoshino , Hirotaka Watanabe , Yoshihiro Arashitani , Kenji Yokomizo , Tomohiro Ishimura
IPC分类号： C03C25/24 , C03C25/105 , C03C25/475 , C03C25/104 , G02B6/44 , G02B6/02
摘要： An optical fiber ribbon is intermittently connected in a length direction by an intermittent connection which includes a polyol having a weight-average molecular weight of 3000 to 4000 in a specific amount relative to the entire intermittent connection and which has Young's modulus at 23° C. within a specific range. When collectively unitizing optical fiber ribbons to form an optical fiber cable, an optical fiber ribbon is formed which maintains advantages of the optical fiber ribbon and which prevents cracks of the intermittent connection and detachment of the intermittent connection from a colored optical fiber core when the cable is subjected to repetitive ironing.
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