| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens device that performs a correction computation of an alignment position in accordance with a state of a lens, and prevents a non-intended lens drive upon changing over an operation authority.SOLUTION: A lens device comprises: a movable optical unit; a drive unit that drives the movable optical unit; an endless operation unit that operates the drive unit; first control means that derives an input value for operating the drive unit at least on the basis of an amount of operation of the endless operation unit; second control means that performs a correction computation with respect to the input value from the first control means to derive a control value, and outputs the control value to the drive unit; and derivation means that derives an alignment position from the control value on the basis of a derivation method of the control value from the input value in the second control means. When an operation from the endless operation unit with respect to an operation of the movable optical unit is valid, the second control means is configured to output the alignment position to the first control means, and the first control means is configured to reset the input value to the alignment position input from the second control means.SELECTED DRAWING: Figure 1 |
