| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel that has an improved alignment mechanism.SOLUTION: A lens barrel 1 according to the present invention comprises: a lens hold frame 62 that holds a lens L2; a first barrel member 40 that is disposed outside the lens hold frame and has a first groove 43 formed; a second barrel member 30 that is disposed outside the lens hold frame and has a second groove 31 formed; a first adjustment member 80 that includes a cylindrical first part 82 fitted into the first groove and a cylindrical second part 83 eccentric to the first part and fitted into the second groove, is rotatably attached to the lens hold frame centering around an axis line A1 of the first part and has a through-hole 84 formed along the axis line A1; and a screw 64 that includes a head 86a and a shaft 86b which is engaged with a screw hole 64b provided in the lens hold frame, is inserted to the through-hole and thereby fastens the first adjustment member to the lens hold frame. The head is in contact with an inner diameter side of a first part of the through-hole and is in non-contact with an inner diameter side of a second part thereof. |
