Binocular telescope with coupled joint focusing and uncoupled se

Details Binocular telescope with coupled joint focusing and uncoupled se Binocular telescope with coupled joint focusing and uncoupled se

1989-09-08

1991-02-05

Henry, Jon W.

350552, G02B 2300, G02B 706

Patent

active

049899635

ABSTRACT:
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.

REFERENCES:
patent: 802817 (1905-10-01), Lloyd
patent: 2811895 (1957-11-01), Jensen
patent: 3484149 (1969-12-01), Becker et al.
patent: 3712704 (1973-11-01), Sato
patent: 4630901 (1986-12-01), Altenheiner et al.

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