Focusing device with diopter adjustment
First Claim
1. A focusing device, comprising a bridge, to which two telescope tubes are fixed, and a focus drive knob which is mounted on the bridge and has a focus drive, which is coupled to focusing elements mounted within the telescope tubes such that they can be displaced, wherein:
- the focus drive contains a longitudinally displaceable spindle and a two-armed lever located transversely with respect to the spindle,the lever is mounted directly on the spindle such that it can be pivoted by overcoming a frictional force and its lever arms are coupled to the focusing elements, anda lock that can be actuated from the outside and acts on the associated focusing element is provided on at least one of the telescope tubes.
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Accused Products
Abstract
A method for focusing and diopter adjustment in a binocular telescope, in which, for the purpose of diopter adjustment, optical focusing elements (12) in the two telescope tubes (2, 3) can be displaced relative to one another, is distinguished by the fact that, as a result of rotation of a focus drive knob (5), both focusing elements (12) are displaced simultaneously by equal distances via a focus drive, the displacement of at least one of the focusing elements (12) can be locked (13, 14), and, as a result of rotation of the focus drive knob (5), while overcoming a frictional force in the focus drive to the locked focusing element (12), only the unlocked focusing element (12) is displaced.
35 Citations
9 Claims
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1. A focusing device, comprising a bridge, to which two telescope tubes are fixed, and a focus drive knob which is mounted on the bridge and has a focus drive, which is coupled to focusing elements mounted within the telescope tubes such that they can be displaced, wherein:
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the focus drive contains a longitudinally displaceable spindle and a two-armed lever located transversely with respect to the spindle, the lever is mounted directly on the spindle such that it can be pivoted by overcoming a frictional force and its lever arms are coupled to the focusing elements, and a lock that can be actuated from the outside and acts on the associated focusing element is provided on at least one of the telescope tubes. - View Dependent Claims (2, 3, 4)
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5. A focusing device, comprising a bridge, to which two telescope tubes are fixed, and a focus drive knob which is mounted on the bridge and has a focus drive, which is coupled to focusing elements mounted in the telescope tubes such that they can be displaced, wherein:
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the focus drive contains a longitudinally displaceable spindle and an axial tube arranged coaxially on the latter, the axial tube is coupled to the spindle such that it can be displaced longitudinally in such a way that the coupling can be released after a frictional force has been overcome, lever arms respectively projecting sideways are fixed to the spindle and the axial tube and are coupled to one of the focusing elements, and a locking means that can be actuated from outside and acts on the axial tube is provided on the bridge. - View Dependent Claims (6, 7, 8, 9)
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Specification