| 摘要 |
PROBLEM TO BE SOLVED: To provide optical connecting parts having high optical reliability and structural durability which does not cause optical loss for the deformation of optical connecting parts such as bending. SOLUTION: In the optical connecting parts, a plurality of optical fibers 4 having a terminal part for optical connection in the end are two-dimensionally arranged on at least one surface of a base material 1 through an adhesive layer 3 so as to form a wiring pattern having at least one of crossed parts, curved parts and fiber pitch converting parts, and the optical fibers are fixed by a resin protective layer 2. The base material is flexible and has <=2.5 kg/mm tensile strength.
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