Patent ID: 9366551
Filing Date: 2016-06-14
CPC Classification: A61B,G01B,G01D

Claim Text:
1. An optical sensor comprising: a light source configured to emit light; a characteristic light-guiding member configured to guide the light emitted from the light source; a characteristic changing part arranged in the characteristic light-guiding member and configured to change an optical characteristic of the light in accordance with how much the characteristic light-guiding member is bent; a detecting unit configured to detect the light changed in optical characteristic by the characteristic changing part and guided by the characteristic light-guiding member; and an optical connecting unit configured to connect optically the light source, the characteristic light-guiding member and the detecting unit, wherein the optical connecting unit has a light branching unit configured to branch the light emitted from the light source to the characteristic light-guiding member, and to branch the light guided by the characteristic light-guiding member to the detecting unit.