| 摘要 |
In an image acquisition device (M), an optical path length difference changing means, which changes an optical path length difference between a first optical path (L1) and a second optical path (L2), is provided. A focus position for capturing images via a first imaging device (18) changes (moves) in the depth direction of a sample (S) according to the optical path length difference, which is changed by the optical path length difference changing means. Consequently, each time the optical path length difference changing means changes the optical path length difference on the basis of a prescribed target focus interval, a stage control means scans a stage (1) while a focus control means controls the focus position for capturing images via the first imaging device (18), and, by acquiring first images via the first imaging device (18), a Z stack image comprising a plurality of first images can easily be acquired in the depth direction of the sample (S) according to changes in the optical path length difference. |
