| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical device that suppresses tilting of a guide shaft and increases flexibility in layout of a focusing lens drive source, lens driving mechanism including the guide shaft, and components.SOLUTION: An optical device includes: driving means; a holding member that holds the driving means; a moving member that holds an optical member and moves when driven by the driving means; and a guide member that is fixed to the holding member to be positioned parallel to an optical axis direction. The driving means is fixed to the holding member by means of a nut and screw. The nut has a first flat part formed thereon. The nut is arranged such that, when viewed from the optical axis direction, the first flat part of the nut is substantially perpendicular to a line connecting center of the screw and nut and center of the guide member.SELECTED DRAWING: Figure 8 |
