Ernst Leitz Wetzlar Gmbh

Leica Camera Gmbh

Leica Gmbh

Heinz Keiner

Alfred Hengst

Heinrich Janke

H Peter Farnung

Hans-Kurt Uellenberg

Lothar Kolsch

A monocular telescope having a constant length includes a lens mounted in a tube and interchangeable eyepieces to vary the magnification. Focusing is performed using a positioning member to move a focusing unit axially in the tube. The rate of focus adjustment is adaptable to the selected magnification due to the provision of a transmission gear having different diameter gear wheels arranged along the positioning member. The transmission gear can be operatively coupled to the interchangeable eyepiece.

Monocular telescope having a focusing unit whose mechanical sensitivity

Pair of binoculars

The binocular telescope has in each barrel a focusing member (internal focusing) which is joined to a support guided on a guide rod. When a control knob is actuated, this support is displaced axially by means of a transmission bar. A driving pin, which engages into the focusing member, is integrally formed on the support for this purpose. A spring which interacts with the driving pin and acts upon the focusing member effects tilt-free guidance and prevents radial play, even with short guide lengths of the focusing member.

Binocular telescopr with radially acting compensating spring

The binocular telescope with internal focusing and articulated bridge contains as a joint focusing mechanism two setting rings which can be coupled and which are arranged co-axially on a central axis. In uncoupled condition each setting ring is allocated to a focusing member of a tube, so that focusing can be done independently from each other. In coupled condition both focusing members are shifted jointly by actuation of each of the setting rings. Thus, an unintentional adjustment of the relative positions of the two focusing members is impossible, and focusing of each focusing member in succession is possible.

Binocular telescope with coupled joint focusing and uncoupled separate

Disclosed is a carrying strap mounting for the releasable mounting of a terminal loop on a carrying strap on the mounting lug, for example, of binoculars by means of a flexible cord loop. The flexible cord loop is connected on one end directly with the mounting lug and at the other end is releasably connected with a single piece fastening element. The fastening element is hooked into the loop of the carrying strap and is secured with a locking slide. Both the cord loop and the fastening element preferably comprise a synthetic resin material.

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Solms, Germany

Heinz Keiner