DE102012025700B3 - Binocular long-range optical device - Google Patents

Abstract

Binocular long-range optical device (1) with two tubes (3, 5), each having an eyepiece (7, 8) and an objective (9, 10), at least one first and one second bridge (11, 12) being provided which are spaced apart from one another along the tubes (3, 5) and wherein each of the bridges (11, 12) has two arms (111, 112, 121, 122) which start from one of the tubes (3, 5) and wherein - at least one of the bridges (11, 12) is designed as an articulated bridge, the ends of which are distant from the tube (3, 5) are rotatably connected to one another about an axis, and - a focus button (20) is rotatable between the two bridges (11, 12) and is connected via a transmission mechanism (21) to at least one first focusing element (15) in one tube (3) and at least one second focusing element (17) in the other tube (5) such that a rotary actuation of the Focus button (20) the focal length of the tubes (3, 5) is adjustable, and - being a first threaded element (26) is connected to the focus button (20), and wherein the transmission mechanism comprises two transmission arms (22, 24) in or on the first bridge (11), which at one end in the tubes (3, 5) each with the Focusing element (15, 17) are connected, and at least one second thread element (28) cooperating with the first thread element (26) and connected to or arranged on the transmission arms, so that by turning the focus knob (20) the second thread element (28) and thus the transmission arms (22, 24) are displaced axially in the direction along the first threaded element (26), the second bridge (12) arranged closer to the objective being designed as an articulated bridge and having a smaller width than the first bridge arranged closer to the eyepiece , and a passage (30) adjoins the second bridge (12) in the direction of the objective, along which the tubes (3, 5) run side by side without connection, the passage (30) has a length of at least 60 millimeters measured along the longitudinal direction of the tube, so that a tube (3, 5) can be gripped by hand.

Description

The invention relates generally to binocular long-range optical devices, in particular binocular binoculars. In particular, the invention relates to binocular binoculars with an articulated axis and focusing device. More specifically, the invention therefore relates to such binocular long-range optical devices in which two optical channels are contained in optical tubes, which are connected by bridges, so that a common articulation axis is formed, and the interpupillary distance of the observer can be adjusted by changing the articulation angle of the articulation bridge. The long-range optical device according to the invention is equipped with a focusing button which is attached to one of the bridges in such a way that it can be easily reached with both hands.

In conventional binoculars, the eyepieces are held in separate tubes that are moved along the binoculars. There is a thread between the eyepiece and the binocular tube, so that when the eyepiece tube is turned, the eyepiece is moved along the optical axis.

An external toothing is connected to the centrally arranged focus button, so that the eyepiece tubes are rotated when the focus button is turned.

In this configuration, rotation of the bridges around the articulation axis leads to a rotary movement on one of the two eyepiece tubes, so that the relative position of the eyepieces relative to one another is shifted. The use of such binoculars is therefore difficult.

In another design, an elongated hollow bridge between the two optical tubes is used. In this hollow bridge, the movement of the focus button is transmitted to a linear movement of focusing members within the optical tubes via a mechanical coupling. Such an arrangement is from the DE 39 29 825 C1 known. Due to the elongated shape, the optical tubes cannot be completely gripped by hand, so that a secure grip of the device is impaired.

The double telescope of the DE 23 16 955 B2 has a one or two articulated connecting bridge between the two tubes. An operating element of a focusing device is integrated in the connecting bridge and acts in the same way on the optical parts of both tubes that serve for focusing.

The binocular binoculars of the JP 2009175498 A has two spaced bridges. The focusing device is integrated in the bridge closer to the two eyepieces.

In the US 6,266,185 B1 binocular binoculars are proposed in which the two optical tubes are connected by two short bridges, which are attached along the tubes at a certain distance. This results in a penetration between the bridges, in the area of which the tubes can be gripped with several fingers.

The focus button is attached to the outer side of one of the two bridges. The movement of the focus button is transmitted through this bridge, which is hollow, via a mechanical coupling to the focusing elements located in the focus. For this it is necessary to use a very compact and therefore complex transmission mechanism with the aim of keeping the size of the bridge used as small as possible. In practice, however, the width is not less than 15 mm.

This has two drawbacks. With a limited overall length of the long-range optical device, the width of the bridge also limits the size of the passage. If you put one in like US 6,266,185 B1 The described binoculars are based on an overall length of approx. 160 mm and mechanically sensible positions of the bridges and a bridge width of more than 15 mm each, so that a penetration of only about 60 mm results. One hand can be wider, however, so that it can only be gripped with a maximum of three fingers. The benefit of such a breakthrough can therefore be limited.

Even more serious is the fact that the bridge through which the mechanical coupling between the focus button and focusing element is guided separates the area of the penetration from the focus button, so that they are more than 15 mm apart. If a user grabs the binoculars while observing, they are forced to hold the binoculars in the area of the penetration with their middle, ring and small fingers. To operate the focus button with his index finger, he must spread it at least 15 mm (the width of the bridge that separates the focus button from his other fingers) in order to reach the focus button. However, such a detached attitude is uncomfortable.

The task is therefore to provide a binocular long-range optical device that is ergonomic and easy to use. The aim is to be able to intuitively grasp the tubes with the whole hand during observation and transport and at the same time to use a focusing button to adjust the object distance via an easily accessible location.

The invention can be applied to all types of binoculars, both with roof edge and with Porro or lens reversing system and with inside and outside focusing.

• - zwei Tuben, die jeweils ein Okular und ein Objektiv aufweisen, wobei
• - zumindest eine erste und eine zweite Brücke vorgesehen sind, welche entlang der Tuben beabstandet zueinander sind und wobei
• - jede der Brücken zwei Arme aufweist, welche von einer der Tuben ausgehen und wobei
• - zumindest eine der Brücken als Knickbrücke ausgebildet ist, deren vom Tubus entfernte Enden um eine Achse drehbar miteinander verbunden sind, und wobei
• - ein Fokusknopf drehbar zwischen den beiden Brücken gehaltert ist und über eine Übertragungsmechanik derart mit zumindest einem ersten Fokussierelement in einer Tube und zumindest einem zweiten Fokussierelement in der anderen Tube verbunden ist, dass durch eine drehende Betätigung des Fokusknopfes die Brennweite der Tuben einstellbar ist, und
• - wobei ein erstes Gewindeelement mit dem Fokusknopf verbunden ist, und wobei die Übertragungsmechanik
• - zwei Übertragungsarme in oder an der ersten Brücke umfasst, welche an einem Ende in den Tuben jeweils mit dem Fokussierelement verbunden sind, sowie zumindest ein mit dem ersten Gewindeelement kooperierendes und mit den Übertragungsarmen verbundenes oder an diesen angeordnetes zweites Gewindeelement, so dass durch Drehen des Fokusknopfs das zweite Gewindeelement und damit die Übertragungsarme axial in Richtung entlang des ersten Gewindeelements verschoben werden, wobei die näher zum Objektiv angeordnete zweite Brücke als Knickbrücke ausgebildet ist und eine geringere Breite als die näher zum Okular angeordnete erste Brücke aufweist, und wobei sich an die zweite Brücke in Richtung zum Objektiv hin ein Durchgriff anschließt, entlang welchem die Tuben verbindungsfrei nebeneinander verlaufen, wobei der Durchgriff eine Länge von mindestens 60 Millimetern gemessen entlang der Tubuslängsrichtung aufweist, so dass ein Tubus mit der Hand umgreifbar ist.

The invention includes a binocular long-range optical device

• - Two tubes, each with an eyepiece and a lens, where
• - At least a first and a second bridge are provided, which are spaced apart along the tubes and wherein
• - Each of the bridges has two arms, which start from one of the tubes and where
• - At least one of the bridges is designed as an articulated bridge, the ends of which are distant from the tube are rotatably connected to one another about an axis, and wherein
• - A focus button is rotatably held between the two bridges and is connected via a transmission mechanism to at least one first focusing element in one tube and at least one second focusing element in the other tube in such a way that the focal length of the tubes can be adjusted by rotating the focus button, and
• - wherein a first threaded element is connected to the focus button, and wherein the transmission mechanism
• - Includes two transmission arms in or on the first bridge, which are each connected to the focusing element at one end in the tubes, and at least one second thread element that cooperates with the first thread element and is connected to or arranged on the transmission arms, so that by rotating the Focus button, the second threaded element and thus the transmission arms are axially displaced in the direction along the first threaded element, the second bridge arranged closer to the lens being designed as an articulated bridge and having a smaller width than the first bridge arranged closer to the eyepiece, and wherein the second Bridge in the direction of the lens connects a passage along which the tubes run side by side without connection, the passage having a length of at least 60 millimeters measured along the longitudinal direction of the tube, so that a tube can be gripped by hand.

The long-range optical device according to the invention uses at least one common bridge which connects two optical tubes in which the imaging optics are accommodated with a focusing device. The mechanical coupling used is not coupled to the configuration of the bridges described, but is also suitable for long-range optical devices with only one common articulated bridge or with two articulated bridges that form a passage.

In particular, a binocular long-range optical device with two tubes is provided to achieve the object, each of which has an eyepiece and a lens and in particular image-inverting prisms arranged in between and in particular a focusing lens, at least a first and a second bridge being provided, which run along the tubes are spaced apart. Each of the bridges has two arms that extend from one of the tubes. At least one of the bridges is designed as an articulated bridge, the ends of which are distant from the tube are connected to one another so as to be rotatable about an axis. A focus button is rotatably held between the two bridges and is connected via a transmission mechanism to at least one first focusing element in one tube and at least one second focusing element in the other tube in such a way that the focal length of the lenses can be adjusted by rotating the focus button. Different from that US 6,266,185 B1 the focus button is located between the two bridges to make it easier to operate with just one hand.

A first threaded element, the thread of which preferably extends along the axis of the first bridge, is preferably connected to the focus button. Two transmission arms of the transmission mechanism are each connected to the focusing element at one end in the tubes. At least one second threaded element connected to or arranged on the transmission arms cooperates with the first threaded element, so that by turning the focus button, the second threaded element and thus the transmission arms are axially displaced in the direction along the first threaded element. The transmission mechanism is based on a displacement mediated by a screw drive instead of that in the US 6,266,185 B1 proposed pivoting two-armed lever. This mechanism also interacts with the arrangement of the focus button in order to achieve the greatest possible penetration between the two tubes, since this preferred transmission mechanism is very simple in its construction and does not require the levers to be supported in the area of the bridge.

In particular, the width of the first bridge can be reduced to 10 millimeters or less with this transmission mechanism.

In a first embodiment, two articulated bridges are used, which are at a distance are attached along the tubes and are connected to one another by two articulated joints in such a way that a common axis is formed, in particular that the axes of the articulated joints are aligned. The two articulated bridges are not connected to each other by an axis, so that a passage is formed. In other words, the axes of rotation of the articulated bridges are aligned, but are separated from one another.

Accordingly, in this development, a third bridge, designed as an articulated bridge, is provided, which is arranged offset along the longitudinal direction of the tube relative to the second bridge, also designed as an articulated bridge, towards the objective, a passage being formed between the second and the third bridge.

In connection with the arrangement of the focus button between the first and second bridges, this arrangement is advantageous with regard to improved handling on the one hand and good mechanical stability, regardless of the design or even the presence of the transmission mechanism. According to a basic idea of the invention, a binocular long-range optical device with two tubes, each having an eyepiece and an objective, and three bridges spaced one behind the other along the tubes, of which at least the second and the third, are provided, without being restricted to the mode of operation and design of the transmission mechanism Bridge counted in the direction from the eyepiece to the objective are designed as articulated bridges and which keep the two tubes at a distance from one another, the articulated bridges having aligned articulation axes running in the same direction.

If, unlike with fixed focus binoculars, a transmission mechanism is provided, then a focus button is again arranged between the first bridge, which is closest to the eyepiece, and the second bridge and, via a transmission mechanism, has at least one first focusing element in a tube and at least one second focusing element connected in the other tube that the focal length of the tubes can be adjusted by rotating the focus button, the transmission mechanism having two transmission arms on or in the first bridge, each of which is coupled to one of the focusing elements and can be moved by rotating the focus button to To adjust focusing elements.

The focus button is accordingly on the axis formed by the two buckling elements on the side of the second bridge that lies outside the penetration, that is, on the eyepiece side of the eyepiece-side bridge. In order to reduce the length of both bridges along the tubes, i.e. the width of the bridges, to a minimum, neither of these bridges guides a mechanical drive from the focus button to the focusing member. Instead, another bridge is used on the eyepiece side of the focus button. This consists of two hollow arms that also meet in the axis formed by the first two bridges.

A mechanical coupling is guided through this additional bridge, which transmits a movement at the focus button to the focusing elements in such a way that a change in the articulation angle on the axis formed does not change the position of the focusing elements. This arrangement maximizes the extent of the opening along the tubes, so that a passage of over 60 mm, preferably 70 mm, can be produced. This is sufficient to enclose a tube with all four fingers.

At the same time, in a further development of the invention, the distance between the opening and the focus button is reduced to less than 5 mm, so that the focus button can be operated with it without the index finger being spread out.

The narrow bridge prevents involuntary movement of the focus button during transport or observation, since the button can only be moved by deliberately moving the finger.

The button is mechanically protected between the bridges used, so that the long-range optical device is extremely robust.

In this configuration, the button can easily be attached to both bridges, through which it is enclosed, on one axis. Such an attachment is robust and simple, and thus also inexpensive to display.

In a second embodiment, the two tubes are connected by two bridges that are close together, the joints of which form a common axis. The focus button is located between these two bridges. At least the second bridge, which is arranged closer to the lens, is designed as an articulated bridge. In order to facilitate handling, this second bridge has a smaller width than the first bridge arranged closer to the eyepiece. Both bridges can also be designed as articulated bridges in order to increase the stability of the arrangement.

Here too, the lens-side bridge, that is to say the second bridge, with a width of less than 5 mm, can be made very narrow. As described above, the rotary movement of the focus button through the eyepiece-side bridge over a transmit mechanical coupling to the focusing elements.

The user can thus completely enclose the tube on the lens side. At the same time, he can operate the focus button without spreading a finger. All of the advantages mentioned above also apply to this configuration. Since the user can grip around a tube in the area between the second bridge and the lens-side end of the tube, a penetration is also formed in the second embodiment of the invention, with the difference that this is not limited by a third bridge. For all embodiments of the invention, a passage can therefore advantageously be connected to the second bridge in the direction of the lens, along which the tubes run side by side without connection, so that a tube can be gripped by hand, and the passage has a length of at least 60 millimeters measured along the longitudinal direction of the tube.

In both configurations, the position of the second bridge, that is to say the middle bridge according to the first embodiment or the lens-side bridge according to the second embodiment, preferably depends on the position of the center of gravity of the long-range optical device.

Ideally, the lens-side edge of this bridge is close to the focus of the long-range optical device. This position enables the user to place his thumb below the long-range optical device in the center of gravity. At the same time, the index finger lies comfortably on the focus button. An optimally quiet position of the long-range optical device in the hand is thereby achieved. In particular, it is advantageous if the center of gravity of the device is at most one fifth, preferably at most one sixth, of the length measured from the eyepiece-side to the lens-side end of the device from the lens-side edge of the second bridge.

In both configurations, in a further development of the invention, it is optionally possible to attach an additional button which causes a relative movement of the focusing elements in both tubes. This is used to adjust the difference in the user's ametropia, in particular for diopter compensation. The button engages in the mechanical coupling between the focus button and the focusing element so that there is a relative movement between the two focusing elements. Accordingly, according to this development of the invention, a diopter compensation button is provided in addition to the focus button, the diopter compensation button being coupled to the transmission mechanism in such a way that a relative movement of the first and second focusing elements in the longitudinal direction of the tubes is effected when the diopter adjustment button is actuated in rotation.

This diopter compensation button is preferably attached on the eyepiece side of the eyepiece-side bridge, so that this action can be generated directly.

At this point the button is protected against incorrect operation when carrying and observing and can still be adjusted directly with a finger during the observation. To do this, the finger must now be spread apart; however, this is less problematic since the ametropia only has to be compensated for once.

An advantage of this configuration is that the diopter compensation can be carried out at any time during the observation, without having to switch a combination button between focusing and diopter compensation, which otherwise complicates the use of binoculars.

A position of the diopter button on the lens side of the middle bridge in the case of the first embodiment or on the lens side bridge in the second embodiment of the invention is also possible.

In accordance with the above-mentioned variants of the position of the diopter compensation button, it is therefore arranged on the eyepiece side on the first bridge or on the lens side on the second articulated bridge.

Furthermore, it is advantageous if the rotation of the focus button is decoupled from a rotation of the articulation axis. For this purpose, a further development of the invention provides that at least one of the transmission arms has a decoupling device which is movable in the direction perpendicular to the thread axis of the threaded element, but is fixed in the direction along the threaded axis, so that a displacement along the threaded axis of the threaded element is transmitted by the decoupling element becomes.

The invention is explained in more detail below on the basis of exemplary embodiments and with reference to the accompanying drawings. The same reference numerals refer to the same or corresponding elements.

• 1 einen schematischen Aufbau einer binokularen fernoptischen Einrichtung mit drei Brücken,
• 2 eine Variante der in 1 gezeigten Ausführungsform mit zwei Brücken,
• 3 eine Weiterbildung der in 1 oder 2 gezeigten Ausführungsformen mit Dioptrienausgleich,
• 4 eine Variante der in 3 dargestellten Ausführungsform, bei welcher unterschiedliche Übersetzungen bei der Drehung des Dioptrienausgleichsknopfs und des Fokusknopfs ermöglicht werden,
• 5 eine Variante der in 1 dargestellten Ausführungsform, bei welcher der Fokusknopf mit einem Innengewinde zur Verschiebung der Übertragungsarme ausgestattet ist,
• 6 als bevorzugteste Ausführungsform eine Weiterbildung der Ausführungsform gemäß 5 mit Dioptrienausgleich, und
• 7 Details der in 6 gezeigten Ausführungsform.

Show it:

• 1 1 shows a schematic structure of a binocular long-range optical device with three bridges,
• 2 a variant of the in 1 shown embodiment with two bridges,
• 3 further training in 1 or 2 shown embodiments with diopter compensation,
• 4 a variant of the in 3 illustrated embodiment, in which different translations are made possible when the diopter compensation knob and the focus knob are rotated,
• 5 a variant of the in 1 illustrated embodiment, in which the focus button is equipped with an internal thread for moving the transmission arms,
• 6 as the most preferred embodiment, a further development of the embodiment according to 5 with diopter compensation, and
• 7 Details of the in 6 shown embodiment.

1 shows a first basic form of a binocular long-range optical device according to the invention 1 , The binocular long-range optical device 1 has two tubes 3 . 5 in which the optical elements are housed.

The optical elements each include an eyepiece 7 . 8th , as well as a lens 9 . 10 , Other optical components, such as an in 1 only schematically shown reversing system known per se to the person skilled in the art 50 . 51 to be available. Such a reversal system can include a roof prism or a Porro prism. Further structures of reversing systems are known to the person skilled in the art and can be incorporated into a binocular long-range optical device according to the invention 1 be implemented. Another focusing element is another optical element 15 , in particular 17 in the form of a lens assembly or a cemented member in each of the tubes 3 . 5 arranged with which the focal length of the respective lens by longitudinal displacement of the focusing element 15 . 17 is customizable. A focusing element does not necessarily refer to a focusing optical element. Rather, this term refers to the fact that changing this element changes the focus of the entire optical system of a tube.

By moving the focusing lens, which can be designed as a lens assembly, preferably also as a cemented member, in particular more generally of the respective focusing element 15 . 17 The object distance is thus set along the optical axis.

So are the in 1 shown example the focusing elements 15 . 17 formed as diverging lenses or diverging lens assemblies, in particular defocusing lenses with a negative focal length.

Overall, the in 1 shown embodiment of the invention three bridges, a first bridge 11 , a second bridge 12 and a third bridge 13 between the tubes 3 . 5 on. At the in 1 Embodiment shown are on each tube 3 . 5 at least two arms each, attached by joints 123 . 133 are connected and the second bridge 12 and the third bridge 13 form. These bridges connect the two tubes 3 . 5 and keep them at a distance from each other. The first bridge has a width of 15 to 30 mm in the axial direction of the tubes and preferably a width of approximately 22 mm. The second bridge has a width of 6 to 10 mm and preferably a width of approximately 8 mm in the axial direction of the tubes, whereas the third bridge has a width of 8 to 12 mm and preferably a width of approximately 10 in the axial direction of the tubes mm. The joints 123 . 133 are shaped in such a way that an imaginary joint axis forms around the two tubes 3 . 5 can be rotated. This rotation changes the distance between the eyepieces 7 . 8th so that the user's eye relief can be adjusted.

The area between the second and third bridge 12 . 13 forms a penetration 30 , At this penetration 30 can the user between the tubes 3 . 5 reach through and so one of the tubes 3 . 5 reach for the hand position. Accordingly, in 1 shown embodiment regardless of the design or the presence of an adjustment mechanism three in a row along the tubes 3 . 5 spaced bridges 11 . 12 . 13 on what at least the second and the third bridge 12 . 13 counted towards the eyepiece 7 . 8th to the lens 9 . 10 are designed as articulated bridges and which are the two tubes 3 . 5 keep at a distance from each other, the articulated bridges being aligned and extending in the same direction 124 . 134 and wherein the space between the second and the third bridge 12 . 13 forms a penetration to a tube 3 . 5 to be able to reach around by hand. In other words, in addition to the first and second bridges 11 . 12 a third bridge designed as an articulated bridge 13 provided, which along the tube longitudinal direction opposite the second bridge, also designed as an articulated bridge 12 to the lens 9 . 10 is arranged offset, and being between the second and the third bridge 12 . 13 a crackdown 30 is formed.

Based on 1 it can also be seen that the closer to the lens 9 . 10 arranged second bridge designed as an articulated bridge 12 a smaller width than the first bridge arranged closer to the eyepiece 11 having. This will be here in particular due to the arrangement of the transmission mechanism in the first bridge 11 allows. Because none of the penetration 30 delimiting bridges 12 . 13 Components of the transmission mechanics can both bridges 12 . 13 kept very narrow and thus the length of the penetration 30 be maximized.

The second bridge 12 can in particular be designed so that there is a width 31 the bridge 12 less than 10 mm. This allows the width of the bridges 2 and 3 formed penetration 30 can be expanded to over 60 mm. In particular, the second bridge designed as an articulated bridge 12 even a width 31 of at most 6 millimeters.

The one at the second bridge 12 penetration in the direction of the lens 30 along which the tubes 3 . 5 run side by side without connection, so that a tube 3 . 5 can be gripped by hand, can preferably even have a length of at least 60 millimeters measured along the longitudinal direction of the tube.

The position of the bridge 2 is advantageously chosen so that it is close to the position of the center of gravity 35 lies along the fold axis of the binocular binoculars. The user now holds the binocular long-range optical device 1 intuitively with the thumb below the center of gravity 35 when he has the focus button 20 wants to serve. This ensures that the binoculars are held in a very calm and stable manner.

The focus 35 does not necessarily have to be, as in 1 shown exactly in the area of the second bridge 12 lie. Also a slight deviation in the position of the center of gravity 35 along the longitudinal direction of the long-range optical device 1 , in particular along the longitudinal direction of the tubes 3, 5 still provides good operability with the advantages mentioned above. It is generally preferred that the focus 35 the 1 device measured by a maximum of one fifth of the length from the eyepiece end to the lens end of the device 1 from the lens-side edge 125 the second bridge 12 is removed.

Between the two tubes 3 . 5 extends alongside the bridges 12 and 13 also another, here as the first bridge 11 designated bridge, which is designed as a hollow body in the illustrated embodiment.

A first threaded element runs through the hollow body 26 in the form of a rotatable threaded rod through the focus button 20 between the first bridge 11 and second bridge 12 is rotated. The rotation of the first threaded element 26 causes the transmission mechanism to move along the threaded rod. The transmission mechanism comprises two transmission arms 22 . 24 in or at the first bridge 11 which at one end in the tubes 3 . 5 each with a focusing element 15 . 17 are connected, and at least one with the first threaded element 26 cooperating and with the transmission arms 22 . 24 connected or arranged on this second threaded element 28 , One with the focus button 20 mediated rotation of the first threaded element 26 this rotation becomes a translation of the second threaded element 28 translated.

The transmission mechanism is fixed with the focus rods, especially the transmission arms 22 . 24 connected, so that this movement in the form of a translation into a movement of the transmission arms 22 . 24 and thus also the focusing elements 15 . 17 transmits along the optical axis. This simple construction also enables the first bridge to be narrow 11 , In particular, the width of the first bridge 11 can be reduced to 18 millimeters or less in this way.

To easily rotate the binocular halves, especially the tubes 3 . 5 In order to enable the articulated bridge, the transmission mechanism is developed into one of the two tubes in a further development of the invention 3 . 5 decoupled with respect to this rotation.

This is achieved, for example, by the side of the transfer arm facing the tube 24 that actually go from the threaded element to the tube 5 leads towards the other tube 3 is extended. This extension receives a groove that has an arc, the center of which is with the articulation axis 124 matches, describes.

The actual transmission mechanism to the tube 3 is designed at this point as a spring, so that it can engage at any angle around the articulation axis on the groove described above.

Of course, other types of decoupling are also conceivable; in particular a reversal of the tongue and groove system; Engaging in guide grooves; Joints etc.

The following typically applies to such decoupling devices 23 on at least one of the transmission arms 22 . 24 that this in the direction perpendicular to the thread axis of the first or second threaded element 26 . 28 is movable, but is fixed in the direction along the thread axis, so that a displacement along the thread axis of the threaded element 26 is transmitted through the decoupling element to the transfer arm. In contrast, there is a movement of the tubes 3 . 5 to the Articulation axis due to the mobility of the decoupling device 23 perpendicular to the thread axis not on the transmission arm 22 taught.

2 shows a variant of the in 1 shown execution, in which also the arms 111 . 112 the first bridge 11 with one joint 113 are connected. The articulated axes 114 . 124 of the joints 113 . 123 of the two bridges 11 and 12 form a common articulation axis, in particular aligned with each other. In this embodiment of the invention there is also a focus button 20 rotatable between the two bridges 11 . 12 supported, the transmission mechanics being closer to the eyepieces 7 . 8th located first bridge 11 guided or arranged on this.

Unlike the in 1 The variant shown here is not a third bridge 13 intended. Likewise, however, the second bridge in the direction of the eyepieces is also connected 7 . 8th to the lenses 9 . 10 seen an intervention attack 30, with the difference that this is not through a third bridge 13 is limited.

3 shows a further education in the 1 or 2 shown embodiments. This training is generally based on the fact that a diopter compensation button 40 in addition to the focus button 20 is provided, the diopter compensation button 40 with the transmission mechanics 21 is coupled so that when the diopter compensation button is actuated in a rotating manner 40 a relative movement of the first to the second focusing element 15 . 17 in the longitudinal direction of the tubes 3 . 5 , especially along the optical axes of the tubes 3 . 5 is effected. The special technical implementation according to 3 but is only an example. As can also be seen in the illustrated embodiment, the focus button 20 and the diopter compensation button 40 not placed on the same side of a bridge. Rather, a bridge is arranged between the two adjustment elements. This is convenient for operability to avoid unwanted instead of the focus button when operating 20 the diopter compensation button 40 or vice versa.

At the in 3 The embodiment shown here shows a preferred arrangement with regard to operability, in which the diopter compensation button 40 on the eyepiece side at the first bridge 11 is arranged.

This placement of the diopter compensation button 40 is ergonomically very cheap. It can be operated with the index finger of both hands. The operation can be done easily during the observation. At the same time is the button 40 secured against accidental twisting, as it is located at a distance from the normal hand position. An objective-side arrangement on the second bridge 12 is also possible.

In particular, it is also favorable to simplify the transmission mechanism, the diopter compensation button 40 coaxial with the focus button 20 to install.

A relative movement of the two focusing elements 15 . 17 along the optical axes by turning the diopter compensation knob 40 To enable, are two with the first threaded element in this embodiment 26 cooperating and with the transmission arms 22 . 24 connected or arranged on these second threaded elements 28 . 29 intended. Here is one of the threaded elements 28 . 29 on one of the transmission arms 22 . 24 arranged. By turning the focus knob 20 both thread elements 28 and 29 and with it the transmission arms 22 . 24 and the focusing elements attached to it 15 . 17 axially along the thread axis of the first threaded element 26 emotional. The second thread elements 28 . 29 and the first threaded element 26 are like using the 3 evident, arranged coaxially. In other words, their thread axes run coaxially.

One of the threaded elements 28 . 29 is by an eccentric driver 41 with the diopter compensation button 40 connected and secured against rotation, so that it turns when the first threaded element 26 moved along the thread axis. At the in 3 shown embodiment, this is the transmission arm 22 , on which also the decoupling device 23 is available.

On the other hand, the diopter compensation button 40 rotated, so the eccentric driver turns 41 the second threaded element 28 around the thread axis of the first threaded element 26 so that the second threaded element 28 and with it the transmission arm 22 along the thread axis of the first threaded element 26 is moved. Because the other second threaded element 29 not by the eccentric driver 41 is moved, the transmission arm changes 24 with the second threaded element 29 its position when turning the diopter compensation knob 41 Not. As a result, the two transmission arms 22 . 24 and the related focus elements 15 . 17 moved relative to each other along the thread axis. This arrangement is particularly simple and space-saving, since here the decoupling device 23 has a dual function. In addition to decoupling the transmission arm from a kinking movement, this also allows the second threaded element to be rotated when the diopter compensation button is actuated 28 around the thread axis of the first threaded element 26 ,

In this way you can turn the diopter adjustment knob 40 a relative movement between the second threaded elements 28 . 29 and thus between the transmission arms 22 . 24 be generated. This results in a relative shift of the focusing element 15 in the tube 3 relative to the focusing element 17 in the tube 5 , This makes it possible to compensate for a difference in the ametropia between the user's eyes. By turning the focus knob 20 will continue to be both focusing elements 15 . 17 rotated at the same time.

• - Es ist zumindest eine Brücke 11, 12 vorgesehen, welche zwei Arme 111, 112, 121, 122 aufweist, welche von einer der Tuben 3, 5 ausgehen und als Knickbrücke ausgebildet ist, deren vom Tubus 3, 5 entfernte Enden um eine Achse drehbar miteinander verbunden sind.
• - Ein Fokusknopf 20 ist drehbar an dieser Brücke oder einer weiteren Brücke 11, 12 zwischen den beiden Tuben 3, 5 gehaltert.
• - Ein erstes Gewindeelement 26 ist mit dem Fokusknopf 20 verbunden.
• - Es ist eine Übertragungsmechanik mit zwei Übertragungsarmen 22, 24 in oder an der einer Brücke 11, 12 vorgesehen, welche an einem Ende in den Tuben 3, 5 jeweils mit einem Fokussierelement 15, 17 verbunden sind.
• - Zwei zweite koaxial zum ersten Gewindeelement angeordnete Gewindeelemente 28, 29, jeweils eines an einem Übertragungsarm 22, 24 sind durch Drehen des Fokusknopfs 20 axial in Richtung entlang des ersten Gewindeelements 26 verschiebbar.
• - Zumindest einer der Übertragungsarme 22, 24 weist eine Entkopplungseinrichtung auf, welche in Richtung senkrecht zur Gewindeachse des ersten Gewindeelements 26 beweglich ist, in der Richtung entlang der Gewindeachse aber eine Verschiebung des zweiten Gewindeelements 28 entlang der Gewindeachse des Gewindeelements auf den Übertragungsarm vermittelt.
• - Eines der zweiten Gewindeelemente 28, 29 ist durch einen zusätzlich zum Fokusknopf 20 vorhandenen Dioptrienausgleichsknopf 40 um ein Gewinde drehbar, so dass dieses zweite Gewindeelement 28, 29 durch Drehung des Dioptrienausgleichsknopfs 40 unabhängig vom anderen zweiten Gewindeelement axial entlang des ersten Gewindeelements 26 bewegbar ist.

Without being restricted to the arrangement of the focus button or the transmission mechanism, the invention therefore also sees a binocular long-range optical device 1 with two tubes 3 . 5 before, each an eyepiece 7 . 8th and a lens 9 . 10 have, the binocular long-range optical device 1 has the following characteristics:

• - It's at least a bridge 11 . 12 provided which two arms 111 . 112 . 121 . 122 which is from one of the tubes 3 . 5 go out and is designed as an articulated bridge, the tube 3 . 5 distal ends are rotatably connected to each other about an axis.
• - A focus button 20 is rotatable on this bridge or another bridge 11 . 12 between the two tubes 3 . 5 supported.
• - A first threaded element 26 is with the focus button 20 connected.
• - It is a transmission mechanism with two transmission arms 22 . 24 in or on a bridge 11 . 12 provided which at one end in the tubes 3 . 5 each with a focusing element 15 . 17 are connected.
• - Two second threaded elements arranged coaxially to the first threaded element 28 . 29 , one on each transmission arm 22 . 24 are by turning the focus knob 20 axially in the direction along the first threaded element 26 displaceable.
• - At least one of the transmission arms 22 . 24 has a decoupling device which is in the direction perpendicular to the thread axis of the first thread element 26 is movable in the direction along the thread axis but a displacement of the second threaded element 28 mediated along the thread axis of the threaded element on the transmission arm.
• - One of the second thread elements 28 . 29 is in addition to the focus button 20 existing diopter compensation button 40 rotatable around a thread so that this second threaded element 28 . 29 by turning the diopter compensation knob 40 independent of the other second threaded element axially along the first threaded element 26 is movable.

These features also apply to the further exemplary embodiments of FIG 4 and 6 to.

4 shows a variant of the in 3 illustrated embodiment. In this variant, the second threaded element is 28 not directly on the first threaded element 26 , but on a sleeve as a second threaded element 29 screwed, which in turn was firmly attached to the transfer arm 24 to the tube 5 connected is.

Here, too, the second threaded element rotates 28 by means of the diopter compensation button to a relative movement between the transmission arms 22 . 24 along the thread axis of the first threaded element 26 , By selecting the thread pitch, the translation for a relative movement of the transmission arms upon rotation of the diopter compensation knob and the joint displacement of both transmission arms can be made here 22 . 24 can be selected differently for focusing.

In the exemplary embodiments explained so far, the first threaded element is 26 formed as a threaded rod, in particular more generally as a threaded element with an external thread. 5 now shows a variant in which the first threaded element 26 an internal thread and a second threaded element 28 on which the transmission arms 22 . 24 are attached, has a cooperating external thread. Now becomes the focus button 20 rotated, the second threaded element connected to the transmission arms is translated in the form of a drive rod along the hollow axis of the first threaded element and thus the focusing elements 15 . 17 postponed.

Is highly schematic and simplified in 5 also a ray path 60 shown, which shows how the rays emitted by an object through the lens 10 then the first focusing element 15 happen and through the reversal system 51 in an intermediate image plane 55 be mapped. From the intermediate image level 55 allows the eyepiece 7 considering the through the reversal system 51 Intermediate image shown upright, which is made using the eyepiece 7 is to be viewed enlarged.

Based on 6 and 7 will be a variant of the in 4 shown embodiment explained, the corresponding to 5 a screw drive with a first threaded element 26 in the form of an internal thread on the focus button 20 having.

6 shows the most preferred embodiment.

In the hollow axis in the focus button 20 runs a sleeve, which is a second threaded element 28 forms and which is equipped with an external and an internal thread.

By selecting the thread pitches of the external and internal threads, the translation for the movement can be made using the focus button 20 and the relative movement through the diopter compensation button 40 can be chosen independently.

The sleeve is fixed to the transfer arm 24 to the focusing element 17 connected and secured against rotation in this way. Becomes the focus button 20 rotated, therefore moves the sleeve-shaped second threaded element 28 in the hollow axis along the thread axis. This movement is on the transmission arm and thus on the focusing element 17 transfer.

In the internal thread of this sleeve is a second threaded element 29 screwed in the form of a tab.

A rotation of the threaded element 29 moves this along the sleeve-shaped second threaded element 28 , so that a relative movement between the two second threaded elements 28 . 29 and thus between the two transmission arms 22 . 24 he follows.

This tab is part of a tongue and groove arrangement as a decoupling device 23 , This form of decoupling device is again only an example.

As in the previous examples, the tab, in particular the second threaded element, can also be used here 29 exemplary by an eccentric driver on the diopter compensation button 40 be coupled.

The figure shows a coupling using a rod 43 having a non-cylindrical shape, e.g. B. has a rectangular, triangular shape or the shape of a semicircle, etc. This rod 43 dips into a suitable hole in the second threaded element 29 one so the second threaded element 29 can still be moved along the axis, but is secured against rotation by the non-cylindrical shape. The pole 43 in turn is firmly attached to the diopter compensation button 40 coupled so that a rotation of the diopter compensation knob 40 a rotation of the rod 43 causes. This rotation is transferred directly to the tab, which is then along the axis in the sleeve-shaped second threaded element 28 is moved.

• Das erste Gewindeelement 26 weist ein Innengewinde auf, welches mit einem Außengewinde eines der zweiten Gewindeelemente 28, 29 kooperiert, wobei dieses zweite Gewindeelement 28, 29 hülsenförmig ist und seinerseits ein Innengewinde aufweist, welches mit einem Außengewinde des anderen zweiten Gewindeelements 28, 29 kooperiert.

This embodiment of the transmission mechanism is advantageous, among other things, because parts of the transmission mechanism are in the hollow axis of the focus button 20 are shifted in, which enables a particularly compact structure. Generally, without limitation to the particular embodiment as they 6 shows, this development with a sleeve-shaped second threaded element and an internal thread on the focus button 20 are characterized by the following features:

• The first threaded element 26 has an internal thread, which with one of the second thread elements has an external thread 28 . 29 cooperates, this second threaded element 28 . 29 is sleeve-shaped and in turn has an internal thread which is connected to an external thread of the other second thread element 28 . 29 cooperates.

The following general developments of the invention result from the embodiment described above:

The first threaded element 26 is designed as an internal thread, with a second threaded element 28 has an external thread cooperating with the internal thread.

7 also shows details of a specific version, which is based on the in 6 schematically shown execution is based. From the binocular long-range optical device 1 is only one area with the two bridges 11 and 12 shown. As with the 7 can be seen, in a development of the invention and without limitation to the special embodiment, the threads of both second thread elements 28 . 29 concentric within the hollow axis of the focus button 20 arranged. More generally, the threads can be at least partially within the hollow axis of the focus button 20 run.

It is apparent to the person skilled in the art that the invention is not restricted to the exemplary embodiments as shown in the figures, but can be varied within the scope of the following claims. In particular, the individual features of the claims and the individual features of the illustrated embodiments can also be combined with one another. So are the embodiments of 4 . 5 and 6 shown with three bridges. However, like the embodiments of FIGS 2 and 3 with only two bridges. Also, for example, instead of the axis 43 similar to in the 3 and 4 shown an eccentric driver 41 used to turn the respective threaded element through the diopter adjustment knob 40 to turn.

LIST OF REFERENCE NUMBERS

1

binocular long-range optical device

3, 5

tube

7, 8

eyepiece

9, 10

lens

11

first bridge

12

second bridge

13

third bridge

15

first focusing element, lens assembly, in particular cemented member

17

second focusing element, lens assembly, in particular cemented member

20

focus knob

21

transmission mechanism

23

decoupling device

22, 24

transmission arm

26

first threaded element

28, 29

second threaded element

30

intervention grip

31

Width of the bridge 12

35

main emphasis

40

Diopter compensation button

41

Eccentric follower

43

pole

50

reversing system

51

reversing system

55

Intermediate image plane

60

beam path

111, 112

Arms of 11

113

Joint of 11

114

Articulation axis of 11

121, 122

Arms of 12

131, 132

Arms of 13

123

Joint of 12

125

lens-side edge of the second bridge 12

133

Joint of 13

124

Articulation axis of 12

134

Articulation axis of 13

Claims (11)

Binocular long-range optical device (1) with - Two tubes (3, 5), each having an eyepiece (7, 8) and a lens (9, 10), wherein - At least a first and a second bridge (11, 12) are provided, which are spaced apart along the tubes (3, 5) and wherein - Each of the bridges (11, 12) has two arms (111, 112, 121, 122) which start from one of the tubes (3, 5) and where - At least one of the bridges (11, 12) is designed as an articulated bridge, the ends of which are remote from the tube (3, 5) are rotatably connected to one another about an axis, and wherein - A focus button (20) is rotatably held between the two bridges (11, 12) and via a transmission mechanism (21) with at least one first focusing element (15) in a tube (3) and at least one second focusing element (17) is connected to another tube (5) that the focal length of the tubes (3, 5) can be adjusted by rotating the focus button (20), and - A first threaded element (26) is connected to the focus button (20), and wherein the transmission mechanism - Two transmission arms (22, 24) in or on the first bridge (11), which are connected at one end in the tubes (3, 5) to the focusing element (15, 17), and at least one with the first threaded element (26) cooperating and connected to or arranged on the transmission arms second thread element (28), so that by turning the focus button (20) the second thread element (28) and thus the transmission arms (22, 24) axially in the direction along the first thread element (26) are displaced, the second bridge (12), which is arranged closer to the lens, being designed as an articulated bridge and having a smaller width than the first bridge, which is arranged closer to the eyepiece, and wherein the second bridge (12) is directed towards the lens a passage (30) connects, along which the tubes (3, 5) run side by side without connection, the passage (30) being at least 60 millimeters long along the length of the tube has seal so that a tube (3, 5) can be gripped by hand. Binocular long-range optical device according to one of the preceding claims, wherein the first bridge (11) has a width of at most 15 millimeters. Binocular long-range optical device according to one of the preceding claims, wherein the second bridge (12) is designed as an articulated bridge and has a width of at most 6 millimeters. Binocular long-range optical device according to one of the preceding claims, characterized by a third bridge (13) designed as an articulated bridge, which is offset along the tube longitudinal direction with respect to the second bridge, also designed as an articulated bridge (12), towards the objective (9, 10), and a passage (30) is formed between the second and third bridges (12, 13). Binocular long-range optical device according to one of the preceding claims, characterized in that the center of gravity (35) of the device is at most one fifth of the length measured from the eyepiece-side to the lens-side end of the device from the lens-side edge of the second bridge (12). Binocular long-range optical device according to one of the preceding claims, characterized by a diopter compensation button (40) in addition to the focus button (20), the diopter compensation button (40) being coupled to the transmission mechanism (21) in such a way that when the diopter compensation button (40) is actuated in rotation Relative movement of the first to the second focusing element (15, 17) in the longitudinal direction of the tubes (3, 5) is effected. Binocular long-range optical device according to the preceding claim, characterized in that the diopter compensation button is arranged on the eyepiece side on the first bridge (11) or on the lens side on the second bridge (12). Binocular long-range optical device according to one of the two preceding claims, characterized in that the transmission mechanism (21) has two second threaded elements (28, 29) arranged coaxially to the first threaded element, each one on a transmission arm (22, 24), which by rotating the The focus button (20) can be moved axially in the direction along the first thread element (26), one of the second thread elements (28, 29) being rotatable about a thread by the diopter compensation button (40) provided in addition to the focus button (20), so that the second Threaded element (28, 29) can be moved axially along the first threaded element (26) independently of the other second threaded element (28, 29) by rotating the diopter compensation knob (40). Binocular long-range optical device according to one of the three preceding claims, characterized in that the first threaded element (26) has an internal thread which cooperates with an external thread of one of the second threaded elements (28, 29), this second threaded element (28, 29) being sleeve-shaped and in turn has an internal thread which cooperates with an external thread of the other second thread element (28, 29). Binocular long-range optical device (1) according to the preceding claim, characterized in that the threads of both second thread elements (28, 29) are arranged concentrically at least partially within the hollow axis of the focus button (20). Binocular long-range optical device (1) according to one of the preceding claims, characterized in that at least one of the transmission arms (22, 24) has a decoupling device (23) which is movable in the direction perpendicular to the thread axis of the threaded element, but is fixed in the direction along the thread axis is, so that a displacement along the thread axis of the threaded element is transmitted by the decoupling element.

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