| 摘要 |
An image capturing apparatus M comprises an optical-path-difference changing unit which changes an optical path difference between a first optical path L1 and a second optical path L2. A focus position of the image pickup by a first imaging device 18 varies (or moves) in a depth direction of a sample S according to the optical path difference changed by the optical-path-difference changing unit. Therefore, every time the optical-path-difference changing unit changes the optical path difference based on a predetermined target focus interval, while a focus control unit controls the focus position of the image pickup by the first imaging device 18, a stage control unit scans a stage 1 and the first imaging device 18 captures a first image, whereby the apparatus can readily capture Z-stack images consisting of a plurality of the first images in the depth direction of the sample S according to the change of the optical path difference. |
