| 摘要 |
Binoculars including: a pair of lens barrels each having a telescopic optical system; and interconnecting portions interconnecting the pair of lens barrels so as to be relatively rotatable about an axis of an axial member that is parallel to an optical axis of each of the telescopic optical systems, an interpupillary distance being adjusted by relatively rotating the pair of lens barrels about the axial member, the binoculars being characterized in further including: a click position setting mechanism serving to set a click position at a predetermined angle of rotation of the pair of lens barrels, the click position setting mechanism being configured to include a rotating member provided on the axial member so as to rotatable about the axis of the axial member and facing the interconnecting portion in a direction of the axis of the axial member, a protruded portion being provided on any one of the interconnecting portion and the rotating member, and a recessed portion being provided on the other of the interconnecting portion and the rotating member and being capable of engaging with the protruded portion; and a lock/unlock member locking the rotation of the rotating member with respect to the axial member and unlocking the locked rotation thereof. |
