| 摘要 |
PROBLEM TO BE SOLVED: To provide zoom binoculars in which zooming operation member is arranged at a position at which it is easily operated and also which is small- sized. SOLUTION: Gear working is applied at the outer periphery of the disk-like part 20a of the zooming operation member 20, and similar gear working is applied at the outer periphery of a right zooming driving member 18, and an intermediate gear 19 meshed and connected with each gear working part is arranged between them. Thus, the zooming operation member 20 and the right zooming driving member 18 are nonintegrally coupled. As for operation, when the zooming operation member 20 is manually rotated around an interpupillary distance adjusting axis 22 in the direction of an arrow, the right zooming driving member 18 is rotated through the intermediate gear 19, and a left zooming driving member 21 is simultaneously rotated through a connection member 11.
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