| 摘要 |
PROBLEM TO BE SOLVED: To highly accurately perform the operations with small loads by a simple configuration with an excellent degree of freedom of design, in a position controller of an optical element capable of movement for image deflection correction and insertion/removal movement to/from an optical axis.SOLUTION: A vibration-proof moving member is supported movably along a surface orthogonal to an optical axis with respect to an advancing/retracting ring movable in an optical axis direction of a photographic optical system, and an insertion/removal moving member supported movably to an insertion position for positioning an optical element on the optical axis and a removal position for removing the optical element from the optical axis is provided on the vibration-proof moving member. To the advancing/retracting ring, a rear support member is positioned more on an image surface side than the insertion/removal moving member and fixed. The insertion/removal moving member is held at the insertion position in a photographing state, and when the advancing/retracting ring is moved in the optical axis direction from a position of the photographing state to a position of a storage state, a removal driving member supported by the rear support member is operated using the moving force, and the insertion/removal member is moved to the removal position through the removal driving member. |
