| 摘要 |
A relational expression indicating a relationship between the position of a focusing lens and a focus value of a fluorescence image captured by a fluorescence imaging element is computed by a relational expression computing unit 42, a precision index of the relational expression computed by the relational expression computing unit 42 is computed by a precision index computing unit 43, a region in which a focal position is present on the basis of the relational expression when the precision index computed by the precision index computing unit 43 is equal to or greater than a predetermined value is determined by a lens position control unit 44, and the focusing lens is moved to the position at which the focus value is maximized in the region. |
