WO2023152383A1 - Attachment for an optical instrument - Google Patents

Abstract

The invention relates to an attachment for an optical instrument, wherein the attachment has an application element and a connection element, wherein the application element has an edge for applying to a pane of glass and the connection element and application element are at least partially moveably secured to one another. In this way, interfering light incidence when photographing or filming is prevented or at least significantly reduced, and, in particular, photographing and filming through panes of glass is enabled without, or almost without, reflections.

Description

Attachment for an optical instrument

The invention relates to an attachment for an optical instrument.

Optical instruments are used, for example, to take pictures or to enable special viewing. For example, optical instruments are cameras that can record an image and store it in digital or analog form. An optical instrument can also be binoculars or a magnifying glass, with which, for example, objects that are far away can be viewed or otherwise invisible details of objects can be recognized. It can also be a flash unit or other lighting device.

It has been found that it is very difficult to view objects through a pane of glass, such as a window pane of a house or a vehicle, with optical instruments. This is due in particular to the fact that reflections often occur on this pane of glass, which are superimposed on a desired image. So instead of just looking at an object behind the pane and taking a photo of it, for example, an unwanted reflection gets into the picture.

It is an object of the invention to provide an attachment for an optical instrument which, for example, enables better viewing through a pane. This is achieved according to the invention by an attachment according to claim 1. Advantageous configurations can be found in the dependent claims, for example. The content of the claims is made part of the content of the description by express reference.

The invention relates to an attachment for an optical instrument. The attachment has a contact element and a connecting element. The contact element has an edge for contacting a pane. The connecting element is designed to be attached to the optical instrument. The contact element has a wall which extends from the edge towards the connecting element and completely or partially shields the incidence of light between the edge and the connecting element. A light incidence opening is formed within the rim. A light exit opening is formed in the connecting element. A continuous light channel is formed from the light entry opening to the light exit opening, which is at least partially delimited by the wall. The application element is at least partially movably attached to the connecting element.

Such an attachment can be used to effectively reduce or prevent unwanted lateral incidence of light, which leads to reflections. Nevertheless, depending on the design, variable viewing directions can be made possible. The rim can be placed against the pane and admit desired light that has passed through the pane and originates at least in part from an object to be observed on the other side of the pane. The wall shields simultaneously incident light from the side, in particular from the same side of the pane on which the optical instrument is located.

Instead of the term “essay” the term “intent” can also be used in at least some forms of usage. Typically, the attachment is a component that attaches to an optical instrument such as a camera, much like a filter or sunshade, for example. The attachment typically serves the purpose described herein, which is to improve image quality when viewed through a pane.

The abutment element is typically that element which bears against the disc. In contrast, the connecting element typically establishes the connection to the optical instrument. It is typically designed to be attached to the optical instrument. In particular, this can be a detachable fastening, so that the attachment can be attached to the optical instrument if necessary and can then also be detached from it again.

In particular, the light exit opening can be arranged on a component which ensures attachment to the optical instrument. In particular, this component can be designed in such a way that no further element, in particular no removable element, is required for attachment to the optical instrument. In particular, the component can be the connecting element which can in particular be designed in one piece and/or can be designed in such a way that it has no detachable component and/or does not require a detachable component in order to be attached to the optical instrument.

In particular, the light exit opening is typically an opening which can be and/or is hit directly by the light that has entered through the light incidence opening. Any opening of an external element, which encompasses the connecting element or a part of the connecting element, is therefore typically not a light exit opening. Typically, the light exit opening is that opening at which the light that has entered through the light entry opening leaves the attachment again.

In particular, the edge can be designed to lie flat against a flat pane. However, other designs are also possible, for example an adaptation to a curved pane, such as a car pane, can take place. Flexibility at the edge may also be possible. For example, the edge can be formed from a material which is deformable, in particular which is elastically deformable.

In particular, the connecting element can have suitable means for connecting, in particular for detachably connecting to an optical instrument. Possible implementations will be discussed in more detail below. The connection can be direct, which can mean in particular that the connecting element is attached directly to the optical instrument. The connection can also be indirect, which can mean in particular that at least one further element is arranged between the optical instrument and the connection element, for example the receiving element mentioned further below. In particular, the connecting element can be designed in one piece and/or without a removable element and/or without an element that can be clipped on. In particular, the connecting element can be designed in such a way that it can provide attachment to an optical instrument without the need or having a detachable component for this purpose. The wall of the contact element can be continuous, in particular between the edge and the connecting element. However, it can optionally also be partially interrupted. It thus effectively shields light from entering, in particular light entering from the side of the attachment, which would lead to unwanted reflections forming in the relevant area on the pane.

The disc is not part of the attachment, but the attachment is intended for use on a disc. For example, the pane can be typical window glass. The attachment thus advantageously enables photography or viewing through window panes of buildings or of means of transport such as motor vehicles, airplanes or trains. For example, this can make it easier to take holiday pictures during a flight or train journey.

The light incidence opening is used to allow the desired light to enter the attachment. Typically, this light first penetrates the pane and then falls into the light incidence opening. Due to a natural beam path, the light reaches the optical instrument in the continuous light channel and can be viewed or further processed there in a suitable manner. In particular, this light emerges again through the light exit opening and then reaches the optical instrument directly.

The continuous light channel is designed in particular in such a way that there are no obstacles to the propagation of light in the light channel. This can apply in particular within the wall and in the further course of the light channel up to the light exit opening. In other words, the light can propagate within the attachment from the light entry opening to the light exit opening without or at least largely without internal obstacles. The wall typically forms the delimitation of the light channel in a section of the light channel which is defined by the contact element.

Due to the fact that the contact element is at least partially movably attached to the connecting element, a certain degree of flexibility in viewing can be achieved without changing the contact element. The application element can therefore in other words, be applied to the pane so that viewing is possible immediately. The landing element can be left unchanged and the connecting element can be moved relative to the landing element without breaking the connection between the landing element and the connecting element. There is therefore no risk of the attachment falling apart. Nevertheless, different perspectives are made possible by the partial mobility. In particular, the contact element can be pivotable relative to the connecting element about one axis or several axes or also about any number of axes, with such a pivoting movement typically being limited by material components that abut one another.

In particular, the connecting element can have a section with a planar, flat, cylindrical and/or box-shaped inner surface. A flat inner surface can in particular run along one or more straight lines. An inner surface can be flat, for example, if it does not have any elevations that are visible to the naked eye. A cylindrical inner surface can have a circular cross-section, for example, which can remain constant, for example. Modifications to this are also possible, for example an elliptical cross section can be used for the inner surface. A box-shaped inner surface can be formed, for example, corresponding to the inner surface of four sides of a parallelepiped. In principle, transitions between these versions are also possible. Combinations are also possible.

The connecting element can in particular be designed for connection to a mobile phone, a photo camera, a video camera, a lens, binoculars, a monocular, a flash unit or an artificial lighting unit. These are typical optical instruments that can be used with the attachment disclosed herein. In principle, however, it can also be used with other optical instruments. When using light-emitting devices such as a lighting unit or a flash unit, as well as when viewing or taking a picture, it can be advantageous if reflections are avoided, since such reflections would lead to an undesired path of rays in directions in which there is no lighting at all should. The connecting element can in particular have a receiving section for receiving a mobile phone. Such a receiving section is in particular an integral part of the connecting element, which typically cannot be detached without being destroyed. This enables the attachment to be used with a mobile phone, which is typically a mobile phone that is capable of taking photos, ie which has a camera. When receiving a mobile phone in the receiving section, at least part of the mobile phone advantageously borders directly on the light exit opening without a light barrier. In particular, this can be a part of the cell phone that has a camera, with the camera being able to look directly into the attachment or its light channel. The receiving section can in particular be designed to fasten the mobile telephone therein, specifically to fasten it in a detachable manner. For example, it can be attached in such a way that it can only be removed again with a certain amount of force and/or after actuation of a locking mechanism.

According to one embodiment, the attachment also has a receiving element for receiving a mobile phone. The receiving element and the connecting element can in particular be attached to one another in a detachable or non-detachable manner. When a cell phone is received in the receiving element, in particular at least one section of the cell phone can directly adjoin the light exit opening without a light barrier.

A similar effect can be achieved by means of such a receiving element as by means of the receiving section described further above. However, the receiving section is understood as an integral part of the connecting element, whereas the receiving element is understood as a separate part thereto. If the receiving element is detachably fastened to the connecting element, it can be dismantled into even smaller parts and/or different uses can be provided for the attachment, one of which is use with a mobile phone. It is also possible to have different receiving elements available for different mobile phones.

According to one embodiment, the receiving element has one or more rails, in which the connecting element is movably fastened. This allows a Method of connecting element along the rails, so that, for example, the connecting element can be positioned relative to the mobile phone at different locations. In particular, this allows the use of multiple cameras of the cell phone, such cameras typically being provided for different recording situations, for example different distances and/or desired magnifications. In this case too, for example, the application element can be left in the same place and the recording element can be displaced relative to the connecting element, so that recordings can be made with different cameras of a mobile phone at the same place.

In particular, an opening can be formed in the receiving element between the rails, which is aligned with the light exit opening at least in some positions of the connecting element. In this way, in particular, a suitable or sufficient incidence of light from the light channel of the attachment to one or more cameras of the cell phone can be achieved. For example, several cameras and/or their lenses can be arranged along a line in a cell phone. Accordingly, the opening can, for example, be elongate. In particular, it can be longer along an extension of the rails than an extension transverse to it. In particular, the rails can be positioned relative to the mobile phone in such a way that it is possible to move along a line that is specified by the lenses, and it is therefore possible to use all lenses with the attachment.

It should be understood that mobility between the contact element and the connecting element can also be dispensed with, particularly when using the embodiment just described with rails. These can thus also be rigidly connected to one another. In principle, this is also possible with other versions.

The receiving element or the receiving section can in particular have a contact plate for contact with the mobile phone. In this way, in particular, a largely flat contact of the mobile phone can be achieved in order to keep it free of play. The receiving element or the receiving section can in particular have a sleeve for inserting the cell phone. This can the mobile phone can be securely fastened. Typically, this is a detachable attachment.

The receiving element or the receiving section can in particular have one or more clamps for clamping and/or fixing the mobile phone. By means of such clamps, the mobile phone can be easily attached and detached again. The receiving element or the receiving section can be completely or partially rubberized on a contact surface with the mobile phone and/or be provided with several rubber knobs. As a result, the cell phone can be attached in particular in such a way that a rubber material is slightly pressed in. This allows an advantageous, play-free and protective attachment of the mobile phone. A rubber or rubber material is to be understood here in particular as meaning a plastic material or a natural rubber material which is fully or at least predominantly reversibly deformable.

According to one embodiment, the connecting element has a thread for screwing onto a lens or other element, a clamping device for attachment to a lens or other element, a bayonet for attachment to a receiving bayonet for a sun visor on a lens or on another element, or other attachment means for attaching to a lens or other element. By means of such devices, an advantageous fastening of the attachment to correspondingly external elements can be achieved. A thread can, for example, be a typical screw thread, whereby, for example, the attachment can be fastened to complementary threads, which are typically present on lenses, in particular on lenses for professional photographers. Elements such as filters or, in some cases, sun visors, for example, are screwed onto threads of this type. They can now also be used to attach the attachment to it. In particular, lenses with threads or mounting bayonets can be protruding and/or detachable lenses, which are used, for example, in professional or semi-professional cameras. According to one embodiment, the attachment is rotationally symmetrical about an axis in at least one relative position between the contact element and the connecting element. According to an alternative embodiment, the attachment is mirror-symmetrical with respect to one or two planes. A rotationally symmetrical design can in particular enable an advantageous adaptation to a typically rotationally symmetrical lens of a camera. Mirror-symmetrical versions can be used in particular if an adaptation to an object that is not round is to take place. For example, the planes can be aligned parallel to an optical axis of the optical instrument and/or parallel to an extension of the light channel.

According to one embodiment, the application element and the connecting element can be detachably fastened to one another. This allows in particular a simple stowage. Alternatively, they can also be non-detachably attached to one another.

The contact element and a section of the connecting element containing the light exit opening can in particular be detachably fastened to one another. This allows the application element to be disassembled, with the light exit opening being contained in one of the parts produced after disassembly. In particular, it can be provided that the attachment is composed of exactly two parts.

According to one embodiment, the connecting element can be made in one piece. This can in particular be understood to mean that all components of the connecting element that are required for connecting to the optical instrument and for connecting to the application element are designed in one piece.

In particular, a one-piece design can be understood to mean that non-destructive disassembly is not possible.

In particular, those sections of the connecting element which contact the optical instrument can be made in one piece.

The wall can in particular be designed to be rigid and/or rigid in whole or in part. This can in particular be understood to mean that the wall cannot be bent or deformed with normal human muscle power. This can refer to the entire wall. However, it can also refer to only part of the wall. For example, it can refer to a section of the wall between a flexible and/or elastically deformable edge and the connecting element.

The wall can be made completely or partially flexible. In particular, this can mean that a shape change is possible with normal human muscle power. This can relate to the entire wall, or for example only to a section which is directly adjacent to the edge.

According to one possible embodiment, the wall is designed entirely or partially as a structure made of rods or at least one grid, the structure being covered with an opaque material and/or fabric. This allows for easy execution.

In particular, the connecting element can be attached to the contact element only in a pivotable and rotatable manner relative to the contact element, or only in a pivotable manner, or only in a rotatable manner. In particular, the connecting element can be attached to the contact element in such a way that no lateral movement of the contact element is possible relative to the edge. As a result, the optical instrument, for example a camera, can be stabilized relative to the edge. The edge can lie against a pane and can also develop a holding effect there due to the pressure applied. Advantageously, only defined movements of the application element and/or the optical instrument such as pivoting and/or rotating relative to the edge are then possible. This makes it easier to track moving objects, such as a fish in an aquarium. A lateral movement can in particular mean a change in location of the optical instrument without a simultaneous pivoting movement.

According to one embodiment, the connecting element can have a completely or partially spherical segment-shaped section on the outside and the contact element can have a section complementary thereto on the inside. The complementary section can, in particular, encompass the section that is entirely or partially in the shape of a segment of a sphere. By means of such a design, a simple mobility of the connecting element is made possible relative to the contact element, the spherical segment-shaped portion and the complementary portion are movable relative to each other in a simple manner. For this purpose, mutually complementary surfaces rub against one another, as a result of which a certain frictional resistance can also be achieved, which can lead to at least a slight fixation, which can be overcome by a force. A section in the shape of a segment of a sphere is in particular a section which represents a segment of a sphere on the outside, ie forms at least part of a spherical surface. It does not have to be a complete sphere. In this case, the complementary section has in particular a surface corresponding to an inner surface of a section of a sphere.

According to one embodiment, the connection element is divided into a first connection sub-element and a second connection sub-element. The first connection sub-element can be designed for connection to the contact element and/or have a section on the outside that is entirely or partially in the shape of a segment of a sphere. The second connecting part element can have an internal thread and/or an external thread and/or another fastening means for connection to a lens or another element. The first connection sub-element and the second connection sub-element can in particular be releasably connected to one another.

Such a design means that the connecting element can be divided into two parts, which can be connected to one another in a suitable manner when the attachment is used, but which can be handled separately from one another for storage or transport. As a result, storage or transport can be simplified, with space-saving storage being able to be achieved, for example. The connection of the first connecting part element to the contact element can in particular be a detachable connection. However, it can also be a fixed connection.

The first connection part element and the second connection part element can be connected to one another in particular by a bayonet catch. This can be understood in particular as a closure in which projections and grooves complementary thereto can be brought into engagement with one another by rotation and can also be brought into a state by rotation in which they can be separated from each other again. This allows a simple connection of the two connecting part elements. However, other connections are also possible.

One groove running along a circumference or a plurality of grooves running along a circumference can be formed in the first connection sub-element or in the second connection sub-element. A projection or a plurality of projections can be formed in the other connecting part element, which projections can be brought between a first state and a second state by a rotational movement. In the first state, the projection or the projections can be held in a form-fitting manner in a respective groove at least in a direction transverse to the circumference. In the second state, the protrusion or protrusions may be free to the other connector member, so that the connector members are removable from each other. In particular, this enables an advantageous design of a bayonet lock. The two connecting part elements can be connected to one another and also removed from one another again by a simple rotary movement.

According to one embodiment, the connecting element can be rotated relative to the contact element into a working state and a storage state. In the working state, the connecting element can protrude further from the application element on a side opposite to the edge than in the storage state. This allows two states to be adopted, one being optimized for use of the attachment and the other being optimized for space-saving storage. In particular, in the storage state, the connecting element cannot protrude from the contact element on a side opposite to the edge. As a result, a particularly compact storage is achieved.

According to one possible embodiment, the contact element is divided into a first partial contact element and a second partial contact element. The first partial contact element can in particular have the edge and at least part of the wall. It can also have the entire wall. The second partial contact element can be designed in particular to be connected to the connecting element and/or to form a spherical segment on the inside in whole or in part Have section complementary section. The first partial contact element and the second partial contact element can in particular be releasably connected to one another. Such an arrangement allows the landing member to be suitably subdivided to provide an intended function in use, but at the same time allow the two sub-members to be separated from one another for easier storage or transport.

One circumferential groove or a plurality of circumferential grooves may be formed in the first landing part element or in the second landing part element. A projection or a plurality of projections can be formed in the other partial contact element, which projections can be brought between a first state and a second state by means of a rotational movement. In the first state, the projection or the projections can be held in a form-fitting manner in a respective groove at least in a direction transverse to the circumference. In the second state, the protrusion or protrusions may be free to the other lander member so that the lander members are removable from each other.

Similar to what has already been described above with reference to the connecting part elements, an advantageous simple connection and also detachment of the two contact part elements can be achieved as a result.

The second partial contact element and the connecting element can in particular be completely stowable within the first partial contact element. In particular, this can mean that when the second partial contact element and the connecting element are stowed away in it, the first partial contact element forms an outer shell over which the second partial contact element and the connecting element do not protrude. The first contact part element thus defines the space to be stowed away. This enables a particularly compact design, in particular for storage and transport.

The contact element and the connecting element can be connected to one another in a tiltable manner, in particular along an axis. This enables a defined tilting, the ability to tilt being typically limited, in particular by abutting elements. The viewing angle can be adjusted, whereby certain viewing angles, which cannot be achieved with pure tilting, can be achieved by turning the attachment. In particular, the ability to tilt can only be implemented about one axis.

The attachment can have one or more springs which movably connect the connecting element and the application element to one another. In particular, the springs can bias the connecting element into a predefined rest position relative to the contact element. As a result, a defined resting position can be achieved, from which it is possible to deviate by applying force.

The springs can prestress the contact element relative to the connecting element, in particular in a rest position.

According to one embodiment, the attachment has a fully or partially flexible, light-tight darkening device which is stretched on the outside between the contact element and the connecting element and completely or partially prevents light from entering between the contact element and the connecting element. This allows additional shielding against undesired incidence of light. The darkening device can be designed, for example, as a curtain, as a fabric element or as some other light-shielding device. As a result, a certain gap can be left between the contact element and the connecting element, for example, without this interfering with the functionality of the attachment.

The connecting element can have an inner edge which points into an interior space of the wall. As a result, the light channel can be formed at least partially. In other words, the wall can at least partially cover the inner edge on the outside or can be arranged adjacent to it, so that incident light from the side is largely or completely prevented. The inner edge can in particular have a plurality of elevations and depressions arranged between them. This enables adaptation to the field of view of a lens, with depressions typically corresponding to rays with larger angles to the optical axis than elevations. This can be particularly the case with a rectangular Detector surface of a camera are applied, the wells are typically diagonally opposite to respective corners of such detector surface. This enables an adjustment to the field of view, which among other things also depends on a focal length.

In particular, the indentations can be so deep that, with an assumed focal length of an objective that is in contact with the light exit opening and behind which there is a light-sensitive surface with an assumed extent, they allow unhindered incidence of light from the light entry opening onto the light-sensitive surface, in particular onto the entire light-sensitive surface , make possible. In this case, the light-sensitive surface can be, for example, a photographic film or a photographic detector, for example a CCD detector. Given an assumed focal length, which typically corresponds to the focal length of a lens used, the indentations can be calculated so that they meet the requirement just mentioned.

A section of the contact element that contacts the connection element can in particular be smaller than a complementary section of the connection element. In particular, this can relate to an extension along or at least essentially along an optical axis or a central axis of the attachment. As a result, more relative movements can be permitted and/or a range of mobility can be improved.

According to one embodiment, the connecting element can be designed as an adapter ring. Such an adapter ring allows, for example, screwing onto a lens, for example a photo camera or video camera. The attachment can have an intermediate element which attaches the application element to the connection element. The intermediate element can in particular be made entirely or partially of flexible material. The intermediate element can have a flat or at least substantially flat rest position. In particular, the intermediate element can extend transversely to a longitudinal axis of the attachment, at least in a rest position. By using such an intermediate element in one or more of the above-mentioned embodiments, it can be achieved that the connecting element has a further degree of freedom relative to the contact element, so that it can not only be pivoted, but also moved along a longitudinal axis of the attachment. This allows, for example, a lens or other optical instrument to be brought closer to the pane, so that a wider field of view is possible. The intermediate element can be, for example, a flexible material, for example a rubber material, or a flexible canvas.

In particular, the edge can lie in one plane. This makes it easier to attach to a flat window. Alternatively, however, the edge can also be curved and/or flexible in order to be adapted to other, in particular more complex, pane shapes. For example, the edge can lie in a curved surface. In this way, in particular, an adaptation to a curved pane can take place.

According to a development, one or more lamps are formed in the edge, the light emission direction of which is preferably directed in a direction away from the attachment, in particular in a direction in which an object to be imaged or observed is located. This allows an object to be illuminated through a pane on which the edge rests. For example, the attachment can have a battery or other power supply for the lamps. An electrical supply can also be provided from an optical instrument or another external unit.

In particular, the edge can have a round, ellipsoidal, angular, square or rectangular cross-section. This allows for a simple design and an adaptation to correspondingly shaped optical instruments.

According to one embodiment, the application element can be designed in the shape of a funnel. This allows an advantageous adaptation to the beam path to be expected of light beams which impinge on the optical instrument through the attachment. The funnel can, for example, have a cross section that widens in one direction, in particular a cross section that widens continuously. The cross section can be circular, ellipsoidal or rectangular, for example. Other shapes are also possible.

The contact element can be rectangular in plan view of the edge. This enables an advantageous adaptation to rectangular optical instruments, for example mobile phones suitable for photography.

The contact element can in particular be designed to be inherently rigid in whole or in part. As a result, the contact element can be completely or partially prevented from being pressed in. This can make operation easier, for example, if the contact element remains fixed to a pane and certain viewing angles can be achieved by the relative mobility between the contact element and the connecting element.

The contact element can be designed to be fully or partially reversibly deformable. As a result, the contact element can be automatically adapted to the shape of a pane. The contact element can also be pressed in slightly and thereby exert a certain force on the pane. This can improve adhesion, for example. This prevents the contact element from slipping unintentionally on the pane. The elasticity or the reversible deformability can be achieved, for example, by designing the contact element as a silicone part, or as a part made of another flexible and/or elastic material, with an elastic support grid made of metal or another material. Materials other than silicone are also possible, for example artificial or natural rubber materials as already explained above.

In particular, the contact element and/or the connecting element can be designed as elements that are stable in themselves. Such inherently stable elements can be rigid, or they can be reversibly deformable. In particular, the contact element and/or the connecting element can be made rigid or reversibly deformable.

The contact element can be completely or partially covered, in particular at the edge, with a non-slip coating, in particular a peripheral coating. This can in particular slip on a pane, such as a glass pane or a plastic pane. An actively applied force is required in order to slide the contact element along the pane. The non-slip covering can be made in particular of rubber or plastic. The anti-slip covering can be designed to be removable, for example by means of a bayonet catch. Alternatively, the anti-slip coating can also be fixed.

In particular, the edge can be eccentric to the connecting element and/or elliptical or oval. Additionally or alternatively, it can be oriented obliquely or obliquely relative to an optical axis. This allows for an asymmetry in the rim so that the field of view can be improved in one direction. In particular, this can be used to provide a certain field of view, which can be changed, for example, along a line running transversely to a pan angle.

According to one embodiment, the wall tapers continuously or at least in sections, viewed from the edge in the direction of the connecting element. This can be achieved, for example, by the funnel-shaped design already mentioned, but other designs are also possible. Such a shape allows an advantageous adaptation to a typical beam path.

In particular, the attachment can be made entirely or partially of plastic material and/or metal and/or composite material. This has proven itself for typical designs. For example, different hard plastics or soft plastics, such as thermoplastics or duroplastics, can be used. For example, iron, steel, stainless steel or a suitable alloy can be used as the metal. A composite material typically combines different materials, such as a plastic material and a metal. As a result, a grid can be formed from metal, for example, which can be covered by a plastic material. As an alternative to a plastic material, natural rubber can also be used, for example. The attachment can advantageously be produced in whole or in part by means of 3D printing, CNC milling and/or injection molding. This allows for easy manufacture. However, other manufacturing processes can also be used.

The attachment described here enables, in particular, a suppression of disruptive reflections when photographing or observing through a pane. In most lighting scenarios, reflections are completely suppressed. One-handed operability is typically possible, for example a camera, binoculars or another optical instrument being able to be held with one hand and held against a pane in such a way that the edge is in contact with the pane. In order to use degrees of freedom with regard to the movement of the application element relative to the connecting element, this one hand, with which the optical instrument is held, is typically sufficient.

The one-handed operation made possible, for example, allows a moving object such as an animal to be easily tracked through a pane. A pivoting movement, for example along an axis, can be used for this purpose. One hand is sufficient for this, as the attachment is typically stable in itself and does not need to be held separately on the pane. The other hand can be used, for example, to fix a zoom lens, to hold the attachment or to shield residual reflections in panes with multiple glazing by means of a black reflector. Due to its construction and its attachment to the pane, the attachment can impart a stability which, for example, enables a longer exposure in a photo camera.

The person skilled in the art will find further features and advantages in the exemplary embodiments described below with reference to the attached drawing. Shown are: Fig. 1: an attachment according to a first embodiment,

Fig. 2 to 7: components of the attachment of Fig. 1,

8 and 9: part of an attachment according to a second embodiment, FIGS. 10 and 11: an attachment according to a third embodiment,

12: part of an attachment according to a fourth embodiment,

13 and 14: part of an attachment according to a fifth embodiment, FIGS. 15 and 16: an attachment according to a sixth embodiment, Fig. 17 and 18: parts of the attachment of Fig. 15 and 16,

19 to 22: an attachment according to a seventh embodiment,

23 to 32: parts of the attachment according to FIGS. 20 to 23,

33 to 38: an attachment according to an eighth embodiment,

39 and 40: an attachment according to a ninth embodiment,

41 and 42: an attachment according to a tenth embodiment,

43 and 44: part of an attachment according to an eleventh embodiment,

Fig. 45: a clip,

Fig. 46: a spring,

Fig. 47: an adapter ring,

48: an arrangement of connecting part elements in an alternative

Execution,

Fig. 49: the arrangement of Fig. 48 in a different view, and

Fig. 50: the arrangement of Fig. 48 in yet another view.

It should be understood that the exemplary embodiments show different combinations of features, which, however, can also be combined with one another, i.e. across exemplary embodiments. This relates in particular to the different shown versions of attachments to an optical instrument and the connection between the application element and the connection element.

1 shows an attachment 100 according to a first exemplary embodiment of the invention. The attachment 100 has an application element 200 and a connecting element 300 . The contact element 200 has an edge 210 with which the contact element 200 can be placed on a pane. The edge 210 is circular in the present case and lies in one plane. It is therefore particularly advantageous for applying to a flat pane, for example a window pane of a house.

In contrast, the connecting element 300 is designed to be attached to an optical instrument. In the present case, it is designed in particular to be attached to a mobile phone. Such mobile phones typically have cameras with which images can be generated. The attachment 100 can help in this in a manner to be described. A light incidence opening 215 is formed within the edge 210 . This allows light to enter the attachment from a pane (not shown) against which the edge 210 is applied. A continuous light channel 110 is formed within the attachment 100, through which the incident light can propagate unhindered. The light channel 110 is delimited by a wall 220 of the contact element 200 , which prevents light other than that which has entered the light channel 110 through the light incidence opening 215 from reaching the connecting element 300 .

As will be explained in more detail below with reference to FIGS. 2 and 3, the light propagates in the light channel 110 to a light exit opening that is still to be described. From there it can merge into the already mentioned mobile phone (not shown), where, for example, an image can be generated using a camera.

The connecting element 300 has a receiving section 310, which in the present case is designed to receive a mobile phone. A mobile phone can be held in it in a form-fitting manner. To insert the mobile phone, the side brackets shown can be easily bent. The mobile phone can also be removed again by slightly bending it. The receiving section 310 can in particular be rubberized so that damage to the mobile phone is avoided and it is held without play.

The connecting element 300 is shown separately in FIGS. It can be seen that the receiving section 310 in the embodiment shown has a total of four arms 320, 322, 324, 326, each of which is bent over at the end. In an advantageous embodiment, these can be rubberized. A mobile phone, which typically has an at least essentially cuboid cross section, can thus be enclosed in a suitable manner. The accommodating section 310 can in particular be adapted to a specific mobile phone or a specific type of mobile phone.

Furthermore, it can also be seen in FIGS. 2 and 3 that in the connecting element

300 a light exit opening 315 is formed. This is where the light channel 110 ends opposite to the light incidence opening 215. At the point at which the light exit opening 315 is located, a camera of the mobile phone is typically arranged on a recorded mobile phone. Light that enters through the light incidence opening 215, in particular through a pane on which the edge 210 rests, and propagates through the light channel 110 to the light exit opening 315, thus reaches a camera of a mobile phone that has been picked up.

In at least some embodiments, cameras of mobile phones or their lenses protrude beyond a housing. In the present embodiment, a bayonet 316 is provided which can enclose such a protruding camera or lens. This enables a precise placement to be made possible. In an alternative embodiment, such a bayonet 316 can also be dispensed with.

In order to allow a mobile phone to rest flat, the receiving section 310 has a contact plate 330 . The mobile phone can lie flat against this. The arms 320, 322, 324, 326 already mentioned together form a sleeve 328 for receiving a mobile phone.

The applying member 200 and the connecting member 300 are movably attached to each other. This is described in more detail below with reference to FIG. 1 and FIGS. 4 to 7. FIG. 4 and 5 show part of the connecting element, whereas FIGS. 6 and 7 show the contact element 200. FIG.

The connecting element 300 has a projection 340 . A section 345 in the shape of a segment of a sphere is formed on the outside of the projection 340 and is used for connection to the contact element 200 . The segment 345 in the shape of a segment of a sphere forms a segment, ie part of a sphere, but not a complete sphere.

An inner edge 350 is formed on the projection 340 and extends into the contact element 200 . In the present case, four elevations 352 and four depressions 354 are formed on the inner edge 350 . The depressions 354 are each diagonally opposite to an assumed corner of an image recording sensor of a mobile phone, which is connected by means of the connecting element 300 is held in the manner described above. This enables the maximum possible field of vision to be used on the one hand and, on the other hand, still ensures that the outer sphere and inner sphere are enclosed. The elevations 352 extend between the depressions 354, since such a flat jet is no longer required at these locations. They improve the mechanical connection between the connecting element 300 and the contact element 200.

The contact element 200 has a section 245 which is complementary to the section 345 in the shape of a segment of a sphere and which is formed on an inner projection 240 . Elevations 252 and depressions 254 are also formed therein, which correspond approximately to the already mentioned elevations 352 and depressions 354 of the inner edge 350 .

As can be seen in FIG. 1, the complementary section 245 bears against the section 345 in the shape of a segment of a sphere and at least partially surrounds it. This enables the connecting element 300 to be at least partially movable relative to the landing element 200, namely by a rubbing movement of the complementary section 245 and the spherical segment-shaped section 345 relative to one another. The mobility is defined by the two sections 245, 345, so that ultimately tilting about all axes in a plane transverse to a longitudinal axis of the light channel 110 is possible.

If the edge 210 is in contact with a pane, the mobility just described can be used to ensure that different viewing angles can still be taken, in which photographs can be taken through the pane.

8 and 9 show part of an attachment 100 according to a second embodiment, specifically a different connecting element 300 compared to the first embodiment Protrusion 340 used in the first embodiment differs. As already described, it interacts with a contact element 200, which is not shown in FIGS. In contrast to the first exemplary embodiment, however, the arms 320, 322, 324, 326 are dispensed with. Instead, there is only one contact plate 330 on which the mobile phone can be placed. The cell phone can be fixed, for example, by means of a clip, as will be described in more detail below with reference to FIG. 47 . In the present case, the contact plate 330 has a first wing 332 and a second wing 334, which is shorter in the present case. This embodiment has the particular advantage that it does not have to be adapted for a specific mobile phone and can be used for different types of mobile phones without any problems.

10 and 11 show an attachment 100 according to a third embodiment. The contact element 200 can also be seen here, although this has a slightly different shape compared to the first exemplary embodiment. A cylindrical part immediately adjacent to the edge 210 that can be seen in FIG. 1 is dispensed with, instead a complete funnel shape from the edge 210 to the transition into the connecting element 300 is selected.

In contrast to the second exemplary embodiment, the contact plate 330 does not have two wings but is only rectangular in shape. This allows it to be used for other types of mobile phones and/or even more universally.

12 shows part of an attachment 100 according to a fourth exemplary embodiment. In this case, the connecting element 300 is designed as in the first exemplary embodiment. In contrast to this, however, two springs 360 are provided, which connect the contact element 200 to the connecting element 300 . The contact element 200 is designed here merely as a flat, rectangular and/or frame-shaped element, with the edge 210 also being designed for contact with a flat pane in this case. The springs 360 allow a relative movement between the connecting element 300 and the contact element 200, so that in this case too it is possible to select a viewing angle with the contact element 200 remaining unchanged. In particular, the springs 360 shown enable simple production by means of 3D printing. Alternatively, a funnel-shaped design of the contact element 200 can also be used in the design with the springs 360 . It is not shown in FIG. 12 that in this embodiment there is a curtain running around the side between the contact element 200 and the connecting element 300 , which curtain is also flexible and effectively prevents light from entering between the contact element 200 and the connecting element 300 . Thus, the same effect of preventing unwanted reflections when photographing is obtained.

13 and 14 show part of an attachment 100 according to a fifth embodiment. In contrast to the exemplary embodiment already mentioned, a receiving element 400 that is additional to the connecting element 300 is designed in the form of a contact plate 430 . Two parallel rails 470 are formed thereon. An opening 475 is formed between these, through which a camera of a mobile phone, on which the contact plate 430 is in contact, photographs. The connecting element 300 shown here only partially, namely with the bayonet 316 already mentioned above, can be moved in the rails 470 relative to the receiving element 400 . In particular, the connecting element 300 can have a projection 340 in addition to the parts which can be seen in FIGS. From there, the contact element 200 can extend, for example, in the shape of a funnel, for example as can be seen in FIG. 1 .

The embodiment with the rails 470 can in particular ensure that the attachment 100 can be used for several lenses of the mobile phone without relative movement between the receiving element 400 and the mobile phone. The attachment plate 430 can be attached to the mobile phone, for example, by means of clips.

It should be understood that this type of connection using the rails 470 can also be combined with other embodiments described herein, for example with the embodiment of the connecting element according to the first embodiment.

15 and 16 show an attachment 100 according to a sixth embodiment. In this case, the connecting element 300 is designed essentially as in the first exemplary embodiment. As a modification to this, however, it has a differently designed projection 340, which is shown in more detail in FIG. The projection 340 has only two elevations 352 and two depressions 354 on the inner edge 350 . As in the other embodiments, the light exit opening 315 is formed on the inside in the projection 340 .

Two holding projections 356 are formed on the outside of the projection 340 and define a pivoting axis 358 . The contact element 200, which in the present case is embodied as a funnel with a smaller inner insert 260 that is also funnel-shaped, is pivotably fastened to the holding projections 356. It can thus be pivoted about pivot axis 358 relative to connecting element 300 . Thus, compared to the first exemplary embodiment, only a limited relative movement between the connecting element 300 and the contact element 200 is possible, pivoting about the pivot axis 358 being possible in the present case. The landing element 200 is also shown in FIG. In particular, the inner insert 260 can be seen, which is used for attachment to the connecting element 300 . Two holes 265 are provided for this purpose, into which the projections 356, which can be seen clearly in FIG. 17, can engage. This allows the pivoting movement already mentioned.

19 to 22 show an attachment 100 according to a seventh embodiment. 23 to 32 show individual components thereof in a more detailed and separate view.

In the case of the attachment 100 according to the seventh exemplary embodiment, there is a contact element 200 which is designed essentially in the shape of a funnel and, just like in the exemplary embodiments described so far, has an edge 210 for contact with a pane. This is shown separately in Figures 31 and 32. However, the associated connecting element 300 is not designed to hold a mobile phone or to be attached to a mobile phone, but rather is designed to be screwed onto a lens of an optical instrument in the form of a photo camera or video camera. Alternatively, the connecting element 300 can also be designed to be plugged and/or clamped onto a lens. This can be provided, for example, in designs for compact cameras, which typically do not have a thread on the lens. In the present embodiment, the connecting element 300 is constructed in two parts, being divided into a first partial connecting element 500 and a second partial connecting element 550 .

The first connection sub-element 500 can be seen in FIG. 26 . The first connecting part element 500 has a spherical segment-shaped section 345 on the outside, which is used in the same way as already described with reference to previous exemplary embodiments to establish a connection to the contact element 200 and a limited mobility between the connection element 300 and contact element 200. On the inside, the first connecting part element 500 has four elongate projections 510 which are used for connection to the second connecting part element 550 . The second link member 550 can be seen separately in Figures 23-25. It has an external thread 560 which serves to be screwed into a typical internal thread of a camera lens. Such internal threads are typically present in camera lenses to accommodate attachments such as ultraviolet filters or polarization filters. Such an internal thread can now also be used to reliably screw the attachment described herein onto the lens. Furthermore, the second connecting part element 550 has four grooves 570 on the outside, in which the projections 510 of the first connecting part element 500 can engage. As a result, a bayonet lock is formed between the two connecting part elements 500, 550, which ensures a reliable and at the same time detachable connection between the two connecting part elements 500, 550. For connection and disconnection, the two connection part elements 500, 550 are twisted in relation to one another, so that the projections 510 come into engagement with the grooves 570 or not. If they do not engage, the two connecting part elements 500, 550 can be detached from one another. In principle, it would also be possible to implement the functionality of the second partial connection element 550 in one piece with the first partial connection element 500, ie not to provide a detachable connection between them. However, the procedure described has the advantage that with the first connecting part element 500, which produces the transition to the contact element 200, several second connecting part elements 550 can be used by simply exchanging them, which can be adapted to different sizes of lenses. The essay 100 can thus be used even more flexibly, since only an associated second connecting part element 550 is required for each lens diameter.

In the embodiment shown, the contact element 200 is also divided into a first partial contact element 600 and a second partial contact element 650 . The first contact part element 600 has the already mentioned edge 210 for contact with a pane. It has four projections 610 on the outside, which are used for connection to the second partial contact element 650 . The second partial contact element 650 has grooves 660 in which the projections 610 of the first partial contact element 600 can engage. This forms a bayonet connection between the two partial contact elements 600, 650, which can be fixed and released by a simple rotary movement. The two contact part elements 600, 650 can thus be separated from one another if necessary, which in particular enables easier storage. In particular, the second contact part element 650 and the connecting element 300 are designed in such a way that they can be accommodated in the first contact part element 600 for transport. In other words, the first contact part element 600 defines the space required for storage or transport. Overall, this enables the attachment 100 to be stowed away and transported in a very compact manner to fasten the landing element 200 to the connection element 300 so that it can move in a limited manner.

A slight modification is shown in FIGS. 29 and 30, in which, in addition to the components described in FIGS. For this purpose, the outside screw 670 can be screwed in so that it engages with the spherical segment-shaped section 345 of the connecting element 300 and exerts a fastening effect. In order to enable mobility between the contact element 200 and the connecting element 300 again, the screw 670 on the outside can be loosened. 33 and 34 show an attachment 100 according to an eighth exemplary embodiment, a contact element 200 interacting with a connecting element 300, as already described. In particular, the spherical segment-shaped section 345 can be seen, along which the funnel-shaped contact element 200 can be pivoted. Such pivoting is shown in FIGS. 33 and 34. Reference is made to the description already given above in this regard. In contrast, FIGS. 35 and 36 show a state in which the contact element 200 is not pivoted relative to the connecting element 300, so that a common optical axis forms an axis of symmetry of the entire attachment 100. Such pivoting movements can be applied, for example, to the exemplary embodiments already described above.

In particular, a thread for screwing onto a lens or another optical instrument can be arranged in the connecting element 300 . This allows, for example, screwing onto such a thread. Coupling to an internal lens of a mobile phone camera can also be provided. For example, an abutment plate can be used.

In FIGS. 37 and 38 the substantially funnel-shaped application element 200 is shown separately. It can be seen here that the complementary section 245 is formed on the inside in the contact element 200 and interacts with the section 345 in the shape of a segment of a sphere in order to ensure the pivotability already described. As can already be seen in the previous figures, in the embodiment shown, several elevations and depressions are also formed on the inside in the contact element 200 . These correspond to the connecting element 300. Such a structuring can provide a larger area of contact between the contact element 200 and the connecting element 300, but it can also be dispensed with and an edge lying in one plane can be used in an alternative form, for example.

39 and 40 show an attachment 100 according to a ninth embodiment. In contrast to the embodiment according to FIGS. 33 to 39, several screws 120, here four screws 120, are attached on the outside. which can exert pressure on the connecting element 300 from the outside. Thereby, the angular relationship between the abutment member 200 and the connecting member 300 can be fixed. The mobility can be released again by loosening the screws 120 . In principle, this design can also be applied to other designs of contact element 200 and/or connecting element 300 . Instead of the screws, a circumferential sleeve could also be used, for example, the diameter of which can be varied, for example, by means of an adjusting screw. The embodiment of FIGS. 39 and 40 can be used in particular for protruding lenses. For example, it can have suitable connecting means for connecting to a lens.

41 and 42 show an attachment 100 according to a tenth embodiment. An intermediate element 700 is provided between the contact element 200 and the connecting element 300 . This intermediate element 700 is in the form of a flat rubber material in the present case, which enables mobility of the connecting element 300 relative to the contact element 200 . The application element 200 can be applied to a pane in the usual way. In the present case, the connecting element 300 is designed as an adapter for accommodating a lens of a photo camera, a video camera or a mobile phone with a corresponding attachment. Due to the flexible design of the intermediate element 700, both are movable relative to one another, specifically in three dimensions. This also makes it possible to push the end of an objective at least partially into the space defined by the contact element 200 and thus allow a further degree of freedom in positioning. As a result, in particular the achievable viewing angle can be increased.

43 and 44 show an attachment element 200 for an attachment according to an eleventh embodiment. This can be used, for example, instead of the application elements otherwise shown. In contrast to the other contact elements, the edge 210 is not circular but ellipsoidal. In addition, the edge 210 is inclined compared to a plane defined by an end facing the connecting element 300 . Such an embodiment can be achieved, for example, by oblique cutting, in particular oblique cutting relative to an optical axis. This allows for a slanted abutment on a disc and one in one towards the enlarged field of view. This can be used in particular for special observation tasks. Such an element can also be used as an attachment for previously described versions with funnel elements.

45 shows a clip 800 according to an embodiment. The clip 800 can be used, for example, to attach a connecting element 300, which is designed only as a contact plate 330, to a mobile phone. For this purpose, the clamp 800 can partially encompass both the connecting element 300 and the mobile telephone and press against one another. This allows for easy attachment and detachment of the attachment 100 to a cellular phone. However, attachment to other components is also possible. The clamp 800 can in particular have rubber knobs and/or a rubber coating on the inside. This can prevent damage to the mobile phone, for example.

Fig. 46 separately shows a spring 360 according to the embodiment of Fig. 12.

In the present case, this is designed in three parts, with a flexible connecting web 362 connecting two lateral webs 364, 366 to one another. The flexible connecting web 362 provides a force that leads to a restoring force when leaving a rest position. Such a spring can be produced, for example, using the 3D printing method Embodiment has been described can be used. Four grooves 910 and two notches 911 are provided here, which are particularly suitable for being fastened on a typical fastening for sun visors, which is designed for a lens. This allows a sun visor mount to be used to attach the attachment 100. Oppositely, for example, a connecting element 300 and a contact element 200 as shown in FIGS. 33 to 36 or according to another embodiment can be used. Attaching in this way has the advantage that the attachment is always identical modulo pi, which makes sense in particular when using non-rotationally symmetrical designs. In addition, when attaching in the manner described above, assembly is faster than screwing it into the filter mount and a Jamming, as can happen with filter screw connections, is practically impossible.

48 and 49 show a first connection part element 500 and a second connection part element 550 in an alternative embodiment. In contrast to the embodiments already described above, several depressions 580, in this case six, are provided. These are formed in the second connecting part element 550 . They are accessible from a side that faces away from the optical instrument when it is in place. This allows for easy rotation of the second connector member 550 since human fingers can be easily inserted and used to rotate.

Fig. 50 shows the connecting part elements 500, 550 in a perspective view. The troughs 580 are easily manipulated by a user to rotate the second connector member 550 relative to a lens or other member to which the members shown are attached.

The troughs 580 or recesses 590 can also be used in other embodiments and/or in other parts and/or at other points of a connecting element 300 .

It should be noted that in the claims and in the description features can be described in combination, for example to facilitate understanding, although they can also be used separately. The person skilled in the art recognizes that such features can also be combined independently of one another with other features or combinations of features.

Back-references in dependent claims can identify preferred combinations of the respective features, but do not exclude other combinations of features. Reference list:

100 essay

110 light channel

120 screws

200 landing element

210 margins

215 light entrance opening

220 wall

240 inner projection

245 complementary section

252 Elevation

254 deepening

260 indoor use

265 holes

300 fastener

310 recording section

315 light exit opening

316 bayonet

320 arms

322 arms

324 arms

326 arms

328 sleeve

330 attachment plate

340 lead

345 spherical segment shaped section

350 inner rim

352 Elevation

354 deepening

356 retaining tabs

358 pivot axis

360 spring

362 connecting bridge

364 side bar side bridge

receiving element

attachment plate

rails

Opening of the first connecting part element

Projections of the second connecting part element

external thread

grooves

Troughs first landing part element

Protrusions second landing part element

grooves

screw

intermediate element

bracket

adapter ring

grooves

screenings

Claims

Claims Attachment (100) for an optical instrument, the attachment (100) having the following: a contact element (200) and a connecting element (300), the contact element (200) having an edge (210) for contact with a pane, wherein the connecting element (300) is designed to be attached to the optical instrument, wherein the application element (200) has a wall (220) which extends from the edge (210) towards the connecting element (300) and light incidence between The edge (210) and the connecting element (300) are completely or partially shielded, with a light incidence opening (215) being formed within the edge (210) and a light exit opening (315) being formed in the connecting element (300), with a continuous light channel (110) from the light incidence opening (215) to the light exit opening (315), which is at least partially delimited by the wall (220), and wherein the contact element (200) is at least partially movably attached to the connecting element (300). The attachment (100) according to claim 1, wherein the connecting element (300) has a portion with a planar, flat, cylindrical or box-shaped inner surface. Attachment (100) according to one of the preceding claims, wherein the connecting element (300) is designed for connection to a mobile phone, a photo camera, a video camera, a lens, binoculars, a monocular, a flash unit or an artificial lighting unit. Attachment (100) according to one of the preceding claims, wherein the connecting element (300) has a receiving section (310) for receiving a mobile phone, wherein when receiving a mobile phone in the receiving section (310) at least a part of the mobile phone is directly without a light barrier to the light exit opening ( 315) adjacent. Attachment (100) according to one of the preceding claims, which further has a receiving element (400) for receiving a mobile phone, wherein the receiving element (400) and the connecting element (300) are detachably or non-detachably attached to one another, and wherein when a mobile phone is received in the Recording element (400) at least a portion of the mobile phone directly without a light barrier to the light exit opening (315) adjacent. Attachment (100) according to Claim 5, in which the receiving element (400) has one or more rails (470) in which the connecting element (300) is movably fastened. Attachment (100) according to Claim 6, wherein an opening (475) is formed in the receiving element (400) between the rails (470) and is aligned with the light exit opening (315) at least in some positions of the connecting element (300). Attachment (100) according to one of Claims 4 to 7, in which the receiving element (400) or the receiving section (310) has a contact plate (330, 430) for contact with the mobile phone. Attachment according to one of Claims 4 to 8, in which the receiving element (400) or the receiving section (310) has a sleeve (328) for inserting the mobile telephone. Attachment according to one of Claims 4 to 9, in which the receiving element (400) or the receiving section (310) has one or more clamps for clamping and/or fixing the mobile telephone. Attachment according to one of Claims 4 to 10, in which the receiving element (400) or the receiving section (310) is completely or partially rubberized on a contact surface with the mobile phone and/or is provided with a number of rubber knobs. Attachment (100) according to any one of the preceding claims, wherein the connecting element (300) has a thread (560) for screwing to a lens or other element, a clamping device for attachment to a lens or other element, a bayonet for attachment to a Receptacle bayonet for a sun visor on a lens or other element, or other attachment means for attachment to a lens or other element. Attachment (100) according to one of the preceding claims, wherein in at least one relative position between the contact element (200) and the connecting element (300) the attachment (100) is rotationally symmetrical about an axis or is mirror-symmetrical with respect to one or two planes. An attachment (100) according to any one of the preceding claims, wherein the landing member (200) and the connecting member (300) are releasably attached to one another. Attachment (100) according to one of the preceding claims, wherein the contact element (200) and a section of the connecting element (300) containing the light exit opening (315) are detachably fastened to one another. Attachment (100) according to one of the preceding claims, wherein the connecting element (300) is made in one piece. Attachment (100) according to one of the preceding claims, wherein those sections of the connecting element (300) which contact the optical instrument are made in one piece. Attachment (100) according to one of the preceding claims, wherein the wall (220) is designed to be rigid and/or rigid in whole or in part. Attachment (100) according to one of the preceding claims, wherein the wall (220) is designed to be flexible in whole or in part. Attachment (100) according to one of the preceding claims, wherein the wall (220) is designed entirely or partially as a structure made of rods or at least one grid, the structure being covered with an opaque material and/or fabric. Attachment (100) according to one of the preceding claims, in which the connecting element (300) is only pivotably and rotatably attached to the landing element (200) relative to the landing element (200). Attachment (100) according to one of the preceding claims, wherein the connecting element (300) has a completely or partially spherical segment-shaped section (345) on the outside and the contact element (200) has a section (245) complementary thereto on the inside, the complementary section (245) surrounds the wholly or partly spherical segment-shaped section. Attachment (100) according to one of the preceding claims, wherein the connecting element (300) is divided into a first connecting part element (500) and a second connecting part element (550), wherein the first partial connection element (500) is designed for connection to the contact element (200) and/or has a section (345) that is entirely or partially in the shape of a spherical segment on the outside, the second partial connection element (550) having an internal thread and/or an external thread (560) and /or having another attachment means for connection to a lens or other element, and wherein the first connection part element (500) and the second connection part element (550) are detachably connected to one another. Attachment (100) according to claim 23, wherein the first connecting part element (500) and the second connecting part element (550) are connected to one another by a bayonet lock. Attachment (100) according to one of Claims 23 or 24, wherein a groove (570) running along a circumference or a plurality of grooves (570) running along a circumference are formed in the first connecting part element (500) or in the second connecting part element (550), and wherein a projection (510) or a plurality of projections (510) are formed in the other connecting part element (500, 550), which projections can be brought between a first state and a second state by a rotational movement, wherein in the first state the projection (510) or the projections (510) are each held in a form-fitting manner in a groove (570) at least in a direction transverse to the circumference, and wherein in the second state the projection (510) or the projections (510) are free to the other connecting part element (500, 550) are, so that the connecting part elements (500, 550) are removable from each other. Attachment (100) according to one of the preceding claims, wherein the connecting element (300) can be rotated relative to the application element (200) into a working state and a storage state, wherein in the working state the connecting element (300) protrudes further from the application element (200) on a side opposite the edge (210) than in the storage state. The attachment (100) according to claim 26, wherein the connecting element (300) does not protrude from the application element (200) on a side opposite the edge (210) in the stored state. Attachment (100) according to one of the preceding claims, wherein the contact element (200) is divided into a first partial contact element (600) and a second partial contact element (650), wherein the first partial contact element (600) has the edge (210) and at least a part of the wall (220), wherein the second partial contact element (650) is designed for connection to the connecting element (300) and/or has a section (245) that is completely or partially complementary to a spherical segment-shaped section (345) on the inside, and wherein the first partial contact element (600) and the second contact part element (650) are releasably connected to one another. Attachment (100) according to claim 28, wherein one or more circumferential grooves (660) or a plurality of circumferential grooves (660) are formed in the first landing part element (600) or in the second landing part element (650), and wherein in the other partial contact element (600, 650) a projection (610) or several projections (610) are formed, which can be brought by a rotary movement between a first state and a second state, wherein in the first state the projection or the projections are each in a groove (660) are held in a form-fitting manner at least in a direction transverse to the circumference, and wherein in the second state the projection (610) or the projections (610) are free to the other partial contact element (600, 650), so that the partial contact elements (600, 650 ) are removable from each other. The attachment (100) of any of claims 28 or 29, wherein the second landing member (650) and the connecting member (300) are stowable entirely within the first landing member (600). Attachment (100) according to one of the preceding claims, wherein the application element (200) and the connecting element (300) are connected to one another such that they can be tilted along a pivoting axis (358). An attachment (100) according to any one of the preceding claims, wherein the attachment (100) has one or more springs (360) which movably connect the connecting element (300) and the application element (200) to one another. The attachment (100) of claim 32, wherein the springs (360) bias the landing member (200) to a rest position relative to the connector member (300). Attachment (100) according to one of the preceding claims, which has a fully or partially flexible, light-tight darkening device which is stretched on the outside between the contact element (200) and the connecting element (300) and blocks the incidence of light between the contact element (200) and the connecting element (300) completely or partially prevented. Attachment (100) according to one of the preceding claims, wherein the connecting element (300) has an inner edge (350) which points into an interior space of the wall (220). The attachment (100) according to claim 35, wherein the inner edge (350) has a plurality of elevations (352) and depressions (354) arranged between them. Attachment (100) according to Claim 36, the indentations (354) being so deep that, with an assumed focal length of a lens which is in contact with the light exit opening (315) and behind which there is a light-sensitive surface with an assumed extent, an unimpeded incidence of light of allow the light entry opening on the light-sensitive surface. Attachment (100) according to any one of the preceding claims, wherein a portion of the landing element (200) contacting the connecting element (300) is smaller than a complementary portion of the connecting element (300). Attachment (100) according to one of the preceding claims, wherein the connecting element (300) is designed as an adapter ring (900). Attachment (100) according to one of the preceding claims, which has an intermediate element (700) which attaches the application element (200) to the connecting element (300), the intermediate element (700) being formed entirely or partially from flexible material. Attachment (100) according to claim 40, wherein the intermediate element (700) has a flat, or at least substantially flat, rest position. Attachment (100) according to one of claims 40 or 41, wherein the intermediate element (700) extends transversely to a longitudinal axis of the attachment (100) at least in a rest position. An attachment (100) according to any one of the preceding claims, wherein the rim (210) lies in one plane. An attachment (100) according to any one of claims 1 to 42, wherein the rim (210) lies in a curved surface. Attachment (100) according to one of the preceding claims, wherein one or more lamps are formed in the edge (210), the light emission direction of which is directed in a direction away from the attachment (100). An attachment (100) according to any one of the preceding claims, wherein the rim (210) has a circular, ellipsoidal, polygonal, square or rectangular cross-section. Attachment (100) according to any one of the preceding claims, wherein the application element (200) is funnel-shaped. Attachment (100) according to one of the preceding claims, wherein the contact element (200) is rectangular in plan view of the edge (210). Attachment (100) according to any one of the preceding claims, wherein the application element (200) is designed to be rigid in itself in whole or in part. Attachment (100) according to one of the preceding claims, wherein the contact element (200) is designed to be fully or partially reversibly deformable. Attachment (100) according to one of the preceding claims, wherein the contact element (200) is completely or partially covered at the edge (210) with a circumferential non-slip coating. Attachment (100) according to claim 51, wherein the non-slip coating is made of rubber or plastic. Attachment (100) according to one of claims 51 or 52, wherein the slip-resistant coating is designed to be removable. Attachment (100) according to one of the preceding claims, wherein the edge (210) is eccentric to the connecting element (300) and/or elliptical or oval. Attachment (100) according to one of the preceding claims, in which the wall (220), seen from the edge (210) in the direction of the connecting element (300), tapers continuously or at least in sections. Attachment (100) according to one of the preceding claims, which is made entirely or partially of a plastic material and/or metal and/or composite material and/or which is manufactured entirely or partially by means of 3D printing, CNC milling and/or injection molding is.