| 摘要 |
PROBLEM TO BE SOLVED: To provide a photodetector capable of easily performing the probe light amount measurement of a built-in optical fiber type having an eccentric amount.SOLUTION: A probe 31 fixed to a connector 6 in a probe perpendicular direction is moved along the surface 4c of an adaptor 4 having a hole 4b coaxial to a detector 2a. In the concentrically aligned state of the tip outer diameter 31b of a probe 31, the probe 31 is fixed to the adaptor 4 by a lock nut 7, and then the adaptor 4 is fixed to a body 3 having the detector 2a fixed thereto. |
