Focussing element for binocular telescope has connection for two ocular holder systems , drive mechanism, ocular support units and two lens systems

摘要

The two lens systems (10R,10L)are fixed to a support element (100) to which an ocular support unit (31R,31L) is rotarily fixed. The ocular units each have an ocular holder section (42R,42L) which holds the two ocular systems so that the optical axes (OR',OL') of the two ocular systems are parallel with the optical axes on which the two ocular systems turn. The focusing device has a connecting element (300) joining the two ocular holder sections, and has a drive mechanism (51) driving the connecting element in a direction parallel with the optical axes of the ocular systems.