| 摘要 |
PROBLEM TO BE SOLVED: To reduce power consumption of a driving source by enabling position holding of an optical element or the like by weak force without necessity of work of the driving source, when the optical element or the like is inserted into or removed from an optical path of an optical system, and enabling drive of the optical element or the like by weak force.SOLUTION: When a driving source is driven and a lever 15 is rotated counterclockwise, a second movable part 14 slides along axes 114a, 114b and slides horizontally in a left direction. With this movement, a cam pin 133 engaged with a cam groove 142 is pushed up in a right oblique upward direction, while sliding along the cam groove 142. In response to this, a first movable part 13 slides along axes 112a, 112b and slides vertically in an upward direction. Thus, an optical element 12 held by an optical element holding part 131 of the first movable part 13 is guided to a position covering an opening 111. |
