Abstract: A method for adjusting a position of a first image stabilization unit and/or a second image stabilization unit of an optical system is provided. The method comprises the steps of detecting a movement of the optical system by means of an angle-of-rotation sensor and determining a bending angle of a first hinge part relative to a second hinge part of a folding bridge of the optical system. Furthermore, a correction angle is determined based on the bending angle. The first image stabilization unit is rotated about the correction angle relative to a first housing and/or the second image stabilization unit is rotated about the correction angle relative to a second housing.

Abstract: A method for adjusting a position of a first image stabilization unit and/or a second image stabilization unit of an optical system is provided. The method comprises the steps of detecting a movement of the optical system by means of an angle-of-rotation sensor and determining a bending angle of a first hinge part relative to a second hinge part of a folding bridge of the optical system. Furthermore, a correction angle is determined based on the bending angle. The first image stabilization unit is rotated about the correction angle relative to a first housing and/or the second image stabilization unit is rotated about the correction angle relative to a second housing.

Abstract: The invention relates to a digital optical instrument including two eyepieces and a folding bridge for adapting the eyepiece distance to the interpupillary distance of the user. In an image recorded by an image sensor, a first bounding frame which is tilted about a first tilt angle relative to the image sensor, is defined and bounds a first portion of the recorded image, wherein the first tilt angle is defined depending on the folding angle. The first portion which is bounded by the tilted first bounding frame is transmitted to the first or second display and displayed by the first or the second mechanically tilted display while maintaining the orientation of the recorded image relative to the observed scene or relative to the horizontal, that is, without rotating the recorded image or the image portion relative to the observed scene or relative to the horizontal.

Abstract: An optical system for imaging an object includes a objective, an image stabilizing unit, an image plane and a drive unit, which is arranged at the image stabilizing unit and provided for moving the image stabilizing unit. The optical system includes a control unit. A signal from the control unit is forwarded to a first high-pass filter. The control unit has an output line and the high-pass filter has a filter output line. Both the output line and the filter output line are arranged at an addition unit such that an actuation signal from the control unit and an output signal from the high-pass filter are added to produce an addition signal. The addition unit is arranged at the drive unit in such a way that the addition signal is used for actuating the drive unit and for moving the image stabilizing unit.

Abstract: A long-range optical device has at least one optical channel which comprises a housing and an arrangement of optical elements. At least one of the optical elements is movable relative to the housing for image stabilization in the event of perturbing movements of the housing. The device further comprises a stabilization system for the at least one movable optical element, which has an eddy current damper for damping movements of the at least one movable element. The stabilization system, in the event of a displacement of the at least one movable optical element, generates a restoring force proportional to the displacement velocity of the at least one movable optical element. The eddy current damper comprises a magnet system and an eddy current carrier interacting therewith. The restoring force generated by the eddy current damper is dependent on the amplitude of the displacement of the at least one movable optical element.

Abstract: A long-range optical device has at least one optical channel, which has a housing and an arrangement of optical elements, wherein at least one of the optical elements is movable relative to the housing for image stabilization in the event of perturbing movements of the housing. The device further has a first passive stabilization system based on mass inertia for the at least one movable optical element, which, in the event of displacement of the at least one optical element relative to the housing, generates a first restoring force proportional to the displacement and a second restoring force proportional to the displacement velocity. The first stabilization system is designed for image stabilization in the event of perturbing movements in a first frequency range.

Abstract: An optical system for imaging an object has at least a first objective, at least a first image stabilizing unit and at least a first eyepiece, wherein, as seen in the direction of the first eyepiece from the first objective, the first objective is arranged first along a first optical axis, then followed by the first image stabilizing unit and then followed by the first eyepiece. The first image stabilizing unit is rotatably mounted in cardan-joint fashion about a first hinge point, and the first hinge point is arranged between the first objective and the first eyepiece. The optical system is distinguished by virtue of the fact that the first image stabilizing unit comprises a first lens unit and at least a further optical element, wherein the first lens unit and the optical element are arranged such that the first lens unit is, together with the optical element, rotatably mounted in cardan-joint fashion about the first hinge point.

Abstract: A long-range optical apparatus, particularly a binocular having two tubes for accommodating long-range optical devices, includes a first folding bridge, a second folding bridge, and preferably a third folding bridge. The folding bridges are pivotably arranged between the tubes of the long-range optical device and each include a first and a second bridge element associated with each other and pivotable relative to each other. At least one folding bridge has a fit that prevents mechanical contact of the bridge elements to each other at least in regions of the pivoting range of the bridge elements.

Abstract: A binocular has a folding bridge for adapting the distance between the eyepieces to the interpupillary distance of the eyes of the user. A synchronous focusing of the two telescopes is brought about via a differential gear assembly which drives respective spindle drives for corresponding ones of the two telescopes. The conversion of the rotational movement into an axial linear displacement of the focusing element of the optics occurs only at the end of the corresponding spindle drive.

Abstract: An accessory adapter is for simplified target acquisition and can be used on or with an imaging optical device, in particular a magnifying imaging optical device. The accessory adapter enables the optical device to be equipped with other high-precision sighting devices for simplified target acquisition.

Abstract: A long-range optical apparatus includes an optical unit defined by lenses and an eyepiece and has at least one manually operable adjusting device for adjusting an optical unit defined by the lenses. With the adjusting device, the optical unit can be adjusted relative to a mounting device. The adjusting device is mechanically coupled to at least one optical element or the mounting device. The optical apparatus has an electronic unit including a memory and the electronic unit performs an electronic function in dependence upon a setting parameter stored in the memory. The adjusting device is coupled with a position detection unit so that actuation of the adjusting device triggers an electrical signal of the position detection unit as a function of the position of the adjusting device. The electronic unit stores or changes a setting parameter in the memory in response to the electrical signal of the position detection unit.

Abstract: An optical system for imaging an object has at least a first objective, at least a first image stabilizing unit and at least a first eyepiece, wherein, as seen in the direction of the first eyepiece from the first objective, the first objective is arranged first along a first optical axis, then followed by the first image stabilizing unit and then followed by the first eyepiece. The first image stabilizing unit is rotatably mounted in cardan-joint fashion about a first hinge point, and the first hinge point is arranged between the first objective and the first eyepiece. The optical system is distinguished by virtue of the fact that the first image stabilizing unit comprises a first lens unit and at least a further optical element, wherein the first lens unit and the optical element are arranged such that the first lens unit is, together with the optical element, rotatably mounted in cardan-joint fashion about the first hinge point.

Abstract: The invention relates to a reticle with a visible pattern in a transparent substrate for a telescope. The pattern of the reticle is made of open grooves which are engraved in a surface of the transparent substrate, wherein the engraved open grooves define groove surfaces at an angle to said substrate surface in which the open grooves are engraved. The groove surfaces have a surface roughness which is large enough to scatter light directed onto the reticle perpendicular to the substrate surface when the reticle is illuminated in transmission mode, such that the pattern becomes visible relative to the remaining substrate surface by said light scattering at the groove surfaces in the transmission mode when viewed from a direction perpendicular to the substrate surface. The reticle is produced with direct laser engraving of the grooves.

Abstract: An optical observation device with at least one visual observation beam path includes an objective lens, an eyepiece, an Abbe König prism system, a Porro prism system or a Schmidt Pechan prism system, arranged in the at least one visual observation beam path between the objective lens and the eyepiece, a display device for displaying an additional image in the visual observation beam path to the observer, and a device for image superposition, which has a holographic optical element, and which uses the holographic optical element to superpose onto the image of the display device the image of a target object to be observed in an intermediate image plane of the visual observation beam path. The prism system is provided with the at least one holographic element of the at least one device for image superposition.