Plastic optical fiber with a lens portion, optical fiber connector, and connecting structures and methods between optical fibers and between optical and light emitting/receiving device

摘要

A plastic optical fiber with a lens portion includes a plastic optical fiber with a concave portion formed on its end face, and a lens portion having a function of controlling light rays. The lens portion is formed of a refractive index adjusting material filled in the concave portion and having a refractive index different from a refractive index of the plastic optical fiber.