| 摘要 |
<p>This microscope objective lens (OB) is a finite-corrected objective lens comprising a plurality of lenses, and is characterized by satisfying conditional expressions (1) and (2). f≤25 mm (1) 0.5≤d2/d1 (2) Here, f is the focal length of the entire microscope objective lens system, d1 is the distance from the object position to the front principal point of the microscope objective lens, and d2 is the distance from the rear principal point of the microscope objective lens to the image position. Furthermore, a microscope objective lens unit (100) is provided with the microscope objective lens (OB) and an imaging element (IM). This control method is characterized in that the microscope objective lens and/or the imaging element are made to move in a direction along the optical axis.</p> |
