Patent ID: 9453983
Filing Date: 2016-09-27
CPC Classification: G02B

Claim Text:
1. A binocular for the left and right eye of a user having an interpupillary distance (W) between the left and right eye, the binocular comprising: a left telescope having first optical elements with adjustable focusing for the left eye of the user; a right telescope having second optical elements with adjustable focusing for the right eye of the user; a folding bridge having a joint pivotally interconnecting said left telescope and said right telescope so as to cause a pivot movement of said folding bridge to adapt the distance between said left telescope and said right telescope to said interpupillary distance (W) of the user; a focusing gear mechanism configured to synchronously focus said left telescope and said right telescope; a common focusing drive element configured to be operated by the user to drive a focusing of said left telescope and said right telescope via said focusing gear mechanism; and, said focusing gear mechanism including a differential gear assembly distributing the driving, brought about by the user via the common focusing drive element, to said left telescope and said right telescope for the synchronously focusing of said left telescope and said right telescope via said differential gear assembly.