| 摘要 |
A transmission type confocal laser microscope has a transmission side objective lens 10 below a specimen stage, which comprises an objective lens unit 10a which is movable in an optical axis direction and a fixed relay lens unit 10b, wherein movement of the objective lens unit 10a for focus adjustment will not change the optical path after the relay lens unit 10b. The microscope further includes an optical path switch on an optical path in the rear of the transmission side objective lens 10 for switching between the optical path to the concave mirror 11 and another optical path; and a target in a position optically equivalent to the concave mirror 11, which is illuminated by a light source for adjusting the transmission side objective lens for focussing. <IMAGE> |
