| 摘要 |
PURPOSE:To improve operability of the step of mounting an objective lens holding member and an elastic member made of rubber and to easily remove the elastic member from a mold at the time of manufacturing the member. CONSTITUTION:A mounting hole 22a parallel to a center line of a ring of a ring-shaped elastic member 22, and an L-shaped protrusion 21a so bent upward in an L shape as to become parallel to the center line of the ring is formed at an opposed position of an objective lens holding member 21 in a radiating direction. The member 22 is formed in a structure in which the member 22 is approached from above to the member 21 to fit the protrusion 21a in the hole 22a. |
