| 摘要 |
Described is a tube ( 20 ) for a viewing device ( 10 ), particularly for a microscope, the tube ( 20 ) having at least one viewing beam path-for example, two viewing beam paths ( 21, 22 ). Provided in the at least one viewing beam path is at least one optical tube element. In order to reduce the structural length of the viewing device ( 10 ), it is provided for in accordance with the invention that a magnification system ( 23 ) for changing the focal depth-for example, a zoom system-is further arranged in the viewing beam path of the tube ( 20 ) itself. In the case of several viewing beam paths, a magnification subsystem ( 24, 25 ) for changing the focal depth can be arranged, for example, in each of the viewing beam paths ( 21, 22 ) of the tube. Further described is a corresponding viewing device ( 10 ).
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