| 摘要 |
Provided are a focus position maintaining apparatus, which can maintain a focal point of an objective lens at a desired position on a sample by three-dimensionally correcting a change of the sample in real time, and a microscope having the focus position maintaining apparatus. A focus position maintaining apparatus (20) has: a microlens array (5), which has a plurality of unit lenses (5a), and which is disposed at a position where light from a sample is received through an objective lens (1); a focusing image pickup element (6), which is disposed at a position where light from the unit lenses (5a) of the microlens array (5) is received; and a control unit (7), which outputs signals for controlling operations of a focus actuator (8), on the basis of the image-forming positions of a plurality of sample images detected by means of the focusing image pickup element (6) through the microlens array (5). |
