专利检索 ap:("TATSUTA ELECTRIC WIRE & CABLE CO., LTD." OR "MARUYAMA FROSTING CO., LTD.") AND inv:"Hideyuki Hirano" 第 1 页

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发明授权
Optical fiber 有权

公开(公告)号：US12130488B2

公开(公告)日：2024-10-29

申请号：US17624982

申请日：2020-08-28

申请人： TATSUTA ELECTRIC WIRE & CABLE CO., LTD. , MARUYAMA FROSTING CO., LTD.

发明人： Hideyuki Hirano , Keiichiro Hirose , Syoji Nakazono , Akihiko Koyama , Takaya Konishi , Ai Takahashi , Masakatsu Setoguchi

IPC分类号： G02B6/44 , G02B6/02

CPC分类号： G02B6/4479 , G02B6/02004

摘要： An optical fiber (10) capable of minimizing strength deterioration includes a core (11) and a clad (12) arranged around the core (11) such that part of the core (11) is exposed. A rough surface portion is provided at least at part of an outer surface of the exposed portion (11a) of the core (11) exposed through the clad (12). The arithmetic surface roughness Ra of the rough surface portion is equal to or greater than 0.2 μm. The average length Rsm of a rough curve element of the rough surface portion is equal to or greater than 17 μm.