| 摘要 |
Objective lens changer comprising: a changer frame arranged to be positioned with respect to the optical path of an optical apparatus, an objective lens carrier moveably attached to the frame by a mechanical link arrangement, the objective lens carrier comprising at least two objective lens positions that can be selectively positioned in the optical path by the mechanical link arrangement, wherein the mechanical link arrangement comprises a first link section to provide translation of the objective lens carrier between the objective lens positions and a second link section spaced apart from the first link section in the direction of the optical axis, and arranged to control the alignment of the objective lens position positioned in the optical path with respect to the optical axis, and wherein the mechanical link arrangement is arranged to move the objective lens carrier in one plane and so that the translation between the objective lens positions involves both an angular movement and a linear movement of the objective lens carrier with respect to the optical axis. |
