| 摘要 |
<p>Binoculars supported by an observer's hands and through which the image of an object of observation can be enlargedly observed includes a pair of right and left observation optical systems each having an objective lens (3a,3b), an eyepiece disposed so that the optic axis (11,13) thereof may be parallel to the optic axis (12,14) of the objective lens (3a,3b) and enabling the image of the object of observation to be enlargedly observed therethrough, and reflecting optical means for directing the image of the object of observation formed by the objective lens (3a,3b) to the eyepiece, a pair of cylindrical bisymmetrical lens barrels (1a,1b) holding the respective observation optical systems therein and of which the outer peripheral surface from the vicinity of the eyepiece portion holding the eyepiece to the end portion of the objective side holding the objective lens (3a,3b) is formed with an inclination with respect to the optic axes of the objective lens (12,14) and the eyepiece (11,12) so that the objective side may be downwardly located, and lens barrel connecting means (6a,6b) including a shaft (7) provided between the pair of lens barrels (1a,1b) and inparallelism to the optic axes (11,12,13,14) of the lenses and connecting the pair of lens barrels (1a,1b) together for rotational displacement about the shaft (7) so that the optic axes (11,12) of the right and left eyepieces may parallel-move relative to each other. <IMAGE></p> |
