CPC G02B 6/3838 (2013.01) [G02B 6/3866 (2013.01)] | 9 Claims |
1. A ferrule, comprising:
an optical transmission member holding part configured to hold an optical transmission member;
a first surface that faces an end portion of the optical transmission member and where a light from the optical transmission member impinges when the optical transmission member is held at the optical transmission member holding part;
a second surface configured to emit, to outside of the ferrule, light entered from the first surface and travelled inside of the ferrule, wherein the second surface is an optical control surface; and
a through hole that is open between the optical transmission member holding part and the first surface.
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