Invention Grant
- Patent Title: Optical fiber cable
- Patent Title (中): 光纤电缆
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Application No.: US12851989Application Date: 2010-08-06
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Publication No.: US08412011B2Publication Date: 2013-04-02
- Inventor: Tetsuya Yasutomi , Masayoshi Tsukamoto , Mitsuru Iwano , Yoshihisa Rintsu , Masanobu Aragaki , Masaki Nishiguchi
- Applicant: Tetsuya Yasutomi , Masayoshi Tsukamoto , Mitsuru Iwano , Yoshihisa Rintsu , Masanobu Aragaki , Masaki Nishiguchi
- Applicant Address: JP Tokyo
- Assignee: The Furukawa Electric Co., Ltd.
- Current Assignee: The Furukawa Electric Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-013202 20070124; JP2007-013222 20070124; JP2007-014146 20070124; JP2007-014154 20070124
- Main IPC: G02B6/44
- IPC: G02B6/44

Abstract:
It is an object of the present invention to provide an optical fiber cable which can reliably prevent increased transmission loss due to damage of the optical fiber as a result of the egg-laying behavior of cicadas. The cable includes at least an optical fiber 1, tension members 6 and a sheath 3. The sheath 3 has a shore D hardness of 55 or more and a minimum distance L from a surface of the optical fiber 1 to an outer surface of the sheath 3 of greater than 0.3 mm. Further, in the cable, the surface of sheath 3 has a coefficient of friction of 0.45 or less and the sheath 3 has a shore D hardness of 57 or more. In addition, the cable is made by using a specific flame retardant composition (P) as the sheath material.
Public/Granted literature
- US20100322573A1 OPTICAL FIBER CABLE Public/Granted day:2010-12-23
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