| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a lens barrel for a joint observer made monoscopic or conditionally stereoscopic, which is installed at the different spot of a microscope, especially on an opposite side, without requiring troublesome assembling operation to take much time or a supplementary adjusting method, and having no fault in a well-known similar solution. <P>SOLUTION: At least one optical path for an assistant (10) can be branched to the back (17) of a housing (5), and the lens barrel for an assistant (9b) is constituted to freely rotate around the axial line (10c) of the optical path for the assistant on a parallel plane (15) parallel with stereo main optical paths (2a and 2b), then a balance weight is constituted to automatically freely rotate in a reverse direction to the rotating direction of the lens barrel for the assistant (9b). <P>COPYRIGHT: (C)2005,JPO&NCIPI |
