| 摘要 |
The invention relates to an illumination device for a surgical microscope comprising a main objective lens (1) surrounding a main optical axis (6) and an illumination optical system (2) having a light source (3). Two prisms (4, 5) are provided between the main objective lens (1) and the illumination optical system (2). During operation, the first prism (4) causes part of the light flow from the illumination optical system (2) to be deflected at a small angle to the main optical axis (6) and the second prism (5) causes another part of the light flow from the illumination optical system (2) to be deflected along the main optical axis (6). Both prisms (4, 5) are arranged next to each other. The light entry surfaces (7) of both prisms face the illumination optical system (2) in such a way that light flux can be independently adjusted for the two prisms (4, 5). This results in a compact design and a good light flux distribution. |
