| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical connector plug that enables optical connector plugs to be surely connected to each other with a low connection loss even if the plugs are not ground, that eliminates effects due to variance in the projected quantity of the end face of a coated optical fiber particularly in a multiple core optical fiber, and that has a high durability in attaching and detaching, and also to provide an optical connection part structure of a device equipped with this optical connector plug. SOLUTION: A resin layer 25 which is light transmissible and has a refractive index close to that of an optical fiber core, is provided on the end face 116 of a ferrule. The optical fiber may be a multiple optical fiber. Then, the end face of the ferrule is formed obliquely, allowing connection with an optical connector plug having an oblique end face. Further, mounted by the optical connector plug so composed, an optical connection structure is formed for a device which is designed to attach and detach another optical connector plug to and from this optical connector plug.
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