| 摘要 |
A microscope lens barrel includes an input port where observation light enters the microscope lens barrel; a plurality of output ports which the observation light goes out of the microscope lens barrel; an optical-path switching mechanism which selectively switches an optical path of the observation light to guide the observation light from the input port to at least one of the output ports; and a supporting part which supports the optical-path switching mechanism. The input port, the output ports, and the supporting part are integrally formed as a tubular body frame so that the input port, the output ports, and the supporting part are arranged at respective center positions of sidewalls of the tubular body frame.
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