| 摘要 |
<p>Provided is a binocular telescope, in which a focus knob is pushed after the adjustment of a diopter difference thereby to cover the operation knob of a diopter adjusting ring with the focus knob so that the operation knob may be kept away from any erroneous touch of the hand thereby to prevent the diopter from any change after the diopter adjustment, and in which the focus knob is pulled into a focus-lock state after the focal adjustment so that the focal position can be prevented from any deviation after the focal adjustment.</p> |
