DE102021116208B3 - Vehicle vision system, system housing for a vehicle vision system, lens receiving housing part for a system housing, lens for a vehicle vision system, vehicle and method for manufacturing a vehicle vision system - Google Patents

Abstract

A vehicle vision system (12), a system housing (16) for a vehicle vision system (12), a lens receptacle housing part (22) for a system housing (16), a lens (32) for a vehicle vision system (12 ), a vehicle with at least one vehicle vision system (12) and a method for producing a vehicle vision system (12). The vehicle vision system (12) comprises at least one system housing (16) in which at least one image sensor (28) is arranged and which has at least one lens mount (30) in which at least one lens (32) is arranged. The at least one lens (32) is aligned with the at least one image sensor (28). The at least one objective (32) is fastened in the at least one objective mount (30) by means of a rotary plug-in connection (34). The rotary plug-in connection (34) can be implemented by means of a rotary plug-in movement of the lens (32) relative to the at least one lens mount (30) with respect to an imaginary connection axis (40). At least one sealing device (38) is implemented between an objective housing (36) of the at least one objective (32) and the at least one system housing (16).

Description

technical field

The invention relates to a vehicle vision system with at least one system housing in which at least one image sensor is arranged and which has at least one lens mount in which at least one lens is arranged, the at least one lens being aligned with the at least one image sensor.

Furthermore, the invention relates to a system housing for a vehicle vision system, which has at least one housing part in which at least one image sensor can be arranged and which has at least one lens mount in which at least one lens can be arranged in such a way that it is on the at least one image sensor is aligned.

The invention also relates to a lens mount housing part for a system housing, which has an area for arranging at least one image sensor and at least one lens mount, in which at least one lens can be arranged such that it is aligned with the at least one image sensor.

Furthermore, the invention relates to a lens for a vehicle vision system, which has at least one element with which it can be connected to a system housing of the vehicle vision system.

Furthermore, the invention relates to a vehicle with at least one vehicle vision system, wherein the at least one vehicle vision system has at least one system housing in which at least one image sensor is arranged and which has at least one lens mount in which at least one lens is arranged, wherein the at least one lens is aligned with the at least one image sensor.

The invention also relates to a method for producing a vehicle vision system, in which at least one image sensor is arranged in at least one system housing and at least one lens is arranged in at least one lens mount of the system housing, with the at least one lens being aligned with at least one image sensor.

State of the art

From the U.S. 2014/0313337 A1 a vehicle camera system is known which is mounted on the inside of the windscreen of a vehicle, e.g. B. a car, truck, bus or van can be installed. The camera system includes a body and a lens with a lens barrel protruding therefrom. The automotive camera system includes a lens holder assembly connected to a top cover by screws. A processing board is provided that includes an image processor. The lens holder assembly includes an imager circuit element or printed circuit board (PCB) on which an image sensor is mounted, for example by soldering the imager to the PCB. The lens is attached (e.g., by adhesive) to the lens holder such that when the lens and lens holder are attached relative to the imaging board, the lens is in focus and aligned relative to the image sensor.

US 2011 / 0 234 803 A1 discloses an imaging device comprising an optical element that forms an image of an object, a lens barrel that holds the optical element, an image pickup device portion that has an image pickup device and obtains the image of the object, a mounting wall portion that a end part of the lens barrel on an object side, a lens barrel side screw groove provided on an outer peripheral surface of the lens barrel, and a screw fixing section on the mounting wall section and screwing with the lens barrel side screw groove to fix the lens barrel on the mounting wall section while the one end part of the lens barrel toward a photographic optical axis is pressed onto the mounting wall portion.

DE 10 2014 218 932 B3 describes a camera for use on vehicles, in particular on commercial vehicles, comprising a modular housing which has a front housing part, a middle part with variable installation space and a rear part, the front housing part having a first connection interface with the middle part of the housing and the middle part having a second connection interface with the rear part of the housing connected is. A camera lens unit is arranged in the front part of the housing and an electronic unit is arranged in the middle part of the housing. Different housing front, middle and rear parts can be combined with each other via the two connection interfaces.

The invention is based on the object of designing a vehicle vision system, a system housing, a lens mount housing part, a lens, a vehicle and a method of the type mentioned at the outset, in which the arrangement and alignment of at least one lens on the at least one system housing is improved , simplified in particular.

Disclosure of Invention

This object is achieved in the vehicle vision system in that
the at least one lens is fastened in the at least one lens mount by means of a rotary plug connection, the rotary plug connection being able to be implemented by means of a rotary plug-in movement of the lens relative to the at least one lens mount with respect to an imaginary connection axis,
and at least one sealing device is implemented between an objective housing of the at least one objective and the at least one system housing.

According to the invention, the at least one objective is fastened in the at least one objective mount by means of a rotary plug connection. In this way, the at least one lens can be fastened in the at least one lens mount quickly, effectively, safely and inexpensively. Such a rotary plug connection can be implemented quickly and with little effort. In this way, the process time in the manufacture of the vehicle vision system can be shortened. With the rotary plug-in connection according to the invention, no adhesive is required to fix the at least one lens in the at least one lens mount. This also eliminates the costs for gluing and curing cells in which the gluing and curing of the adhesive takes place. The at least one lens can be precisely arranged in the at least one lens mount with the aid of the rotary plug-in connection. Alignment of the at least one objective with the at least one image sensor can thus be simplified. Furthermore, there is no need for any post-processing in the event that the initial alignment of the at least one lens has to be corrected.

Furthermore, according to the invention, at least one sealing device is arranged between an objective housing of the at least one objective and the at least one system housing. With the at least one sealing device, the rotary plug-in connection can be sealed off in particular from the environment. In this way, penetration of dirt and/or moisture from the environment into the interior of the system housing can be prevented. Furthermore, the at least one sealing device can serve to compensate for tolerances. In this way, production-related tolerances between the lens housing and the at least one lens mount can be compensated for.

At least one plug-in movement and at least one rotary movement of the at least one lens relative to the at least one lens mount are combined with respect to an imaginary connection axis to implement the rotary plug-in connection. The at least one lens can be inserted into the at least one lens mount by means of plug-in movements. Corresponding interacting parts on the one hand on the at least one lens, in particular the lens housing, on the one hand and on the side of the at least one lens mount on the other hand can be guided along one another by means of rotary movements. In an end position of the at least one lens, the parts can engage behind one another. In this way, the at least one lens can be held axially in the at least one lens mount with respect to the imaginary connection axis.

Advantageously, the rotary plug-in connection can be a bayonet-type connection. In the case of a bayonet-lock type connection, the guide elements of one of the components are guided and held along the guide contours of the other component by means of combined turning and plugging movements.

The vehicle vision system can advantageously be a camera, in particular a vehicle camera, such as a front camera, a rear camera, a floor camera, a roof camera, a windshield camera, an interior camera or the like. Vehicle cameras can be used to capture images of surveillance areas, in particular of objects in surveillance areas. Vehicle cameras can be used to monitor an environment and/or an interior of a vehicle for objects.

Alternatively, the vehicle vision system can also be a different type of vehicle vision system, in particular a LiDAR system or a radar system or the like.

The invention can advantageously be used in vehicles, in particular motor vehicles. The invention can advantageously be used in land vehicles, in particular passenger cars, trucks, buses, motorcycles or the like, aircraft, in particular drones, and/or water vehicles. The invention can also be used in vehicles that can be operated autonomously or at least partially autonomously. However, the invention is not limited to vehicles. It can also be used in stationary operation, in robotics and/or in machines, in particular construction or transport machines such as cranes, excavators or the like.

The vehicle vision system can advantageously be equipped with at least one electronic control device of a vehicle or a machine, in particular a driver assistance system or the like, connected or part of such. In this way, at least some of the functions of the vehicle or machine can be carried out autonomously or partially autonomously.

The vehicle vision system can be used to detect stationary or moving objects, in particular vehicles, people, animals, plants, obstacles, bumps in the roadway, in particular potholes or stones, roadway boundaries, traffic signs, free spaces, in particular parking spaces, precipitation or the like, and/or movements and /or gestures are used.

In an advantageous embodiment
the at least one sealing device has an axial and/or radial sealing effect with respect to the connection axis
and/or the at least one sealing device is at least one elastic one
and/or have an annular sealing element.

Advantageously, the at least one sealing device can have an axially sealing effect with respect to the connection axis. In the case of a sealing device acting in an axially sealing manner, axial end faces of opposing sealing elements and/or sealing surfaces lie against one another. In this way, the sealing effect of the at least one sealing device can be improved by forces acting in the axial direction, which can be realized when the components of the rotary plug-in connection engage in one another.

Alternatively or additionally, the at least one sealing device can advantageously have a radially sealing effect with respect to the connection axis. In the case of a sealing device acting in a radially sealing manner, radially outer and radially inner sides of opposing sealing elements and/or sealing surfaces bear against one another. In this way, the components can be installed more tolerantly in the axial direction. Furthermore, a radially acting seal is largely unencumbered by axially acting forces of the rotary plug-in connection.

Alternatively or additionally, the at least one sealing device can have a sealing effect both axially and radially with respect to the connection axis. This can be achieved in particular in that corresponding axially frontal and radial sealing surfaces and/or sealing surfaces are provided. In this way, the advantages of a radially acting sealing device and an axially acting sealing device can be combined. It is also possible to provide sealing surfaces and/or sealing surfaces which run obliquely to the connection axis and cause radial and axial sealing components.

Alternatively or additionally, the at least one sealing device can advantageously have at least one elastic sealing element. In this way, tolerance compensation in the axial direction can be improved with the at least one sealing element. Furthermore, with the at least one elastic sealing element, an elastic mechanical pretension can be realized by appropriate pressing, with which the at least one objective can be held more stably in the at least one objective mount.

Alternatively or additionally, at least one sealing element can advantageously be ring-shaped. In this way, the at least one sealing element can extend circumferentially, in particular with respect to the connection axis.

At least one sealing element can advantageously be a ring seal, in particular an O-ring seal. O-ring seals are suitable as an axial seal, as a radial seal and as a combined axial-radial seal.

In a further advantageous embodiment
the at least one sealing device has at least one sealing surface on the side of the objective housing
and/or the at least one sealing device has at least one sealing surface on the side of the system housing
and/or the at least one sealing device has at least one sealing surface which extends circumferentially with respect to the connection axis. In this way, the sealing effect of the at least one sealing device can be improved.

Appropriate sealing elements, in particular ring seals, and/or other sealing surfaces can make sealing contact with sealing surfaces.

The at least one rotary plug-in connection can be sealed circumferentially by means of a sealing surface extending circumferentially around the connection axis.

In a further advantageous embodiment
at least one lens-side part of the at least one sealing device can be arranged on the radially outer peripheral side of the lens housing with respect to the connection axis
and/or at least one part on the receiving side be arranged on an end face of the system housing that is axial with respect to the connection axis.

At least one lens-side part can advantageously be arranged on the radially outer peripheral side of the lens housing. In this way, the axial expansion of the objective housing with respect to the connection axis can be minimized.

Advantageously, the objective housing can have at least one collar that extends radially with respect to the connection axis. At least one sealing surface and/or at least one seal receptacle for at least one sealing element can be realized on the at least one collar.

Alternatively or additionally, at least one part on the receptacle side can advantageously be arranged on an axial end face of the system housing. In this way, a radial expansion of the at least one lens mount can be minimized.

In a further advantageous embodiment, at least one sealing device can have at least one seal receptacle for at least one sealing element. In this way, the at least one sealing element can be placed and/or held more precisely and/or more easily.

At least one sealing device can advantageously have at least one sealing groove. A seal groove can serve as a seal seat for a seal. Advantageously, the at least one sealing groove can be a sealing groove running circumferentially with respect to the connection axis. An annular sealing element, in particular a ring seal, in particular an O-ring seal, can be arranged in a circumferential sealing groove.

In a further advantageous embodiment
the at least one rotary plug-in connection has at least one guide element and at least one guide contour, which forms a guide for the at least one guide element during the rotary plug-in movement,
and/or at least one guide element of the rotary plug-in connection can be arranged on the lens housing
and/or at least one guide contour of the rotary plug-in connection can be arranged on the at least one system housing.

Through the interaction of at least one guide element on the one hand and at least one guide contour on the other hand, the at least one lens and the at least one system housing can be guided relative to one another during the rotary and plug-in movement.

Advantageously, several guide contours and corresponding guide elements can be distributed circumferentially with respect to the connection axis. In this way, forces that act between the guide contours and the corresponding guide elements when the rotary plug-in connection is implemented can be introduced more evenly.

At least one guide element of the rotary plug-in connection can advantageously be arranged on the objective housing. Guide elements can be designed more simply than guide contours. In this way, the production of the lens housing with guide elements can be implemented more simply.

Advantageously, at least one guide element of the rotary plug-in connection can be arranged on the radially outer peripheral side of the objective housing with respect to the connection axis. In this way, the lens housing can be constructed to save space in the axial direction.

Alternatively or additionally, the at least one guide contour can advantageously be arranged on the at least one system housing. A complex guide contour can also be implemented on the at least one system housing.

At least one guide contour can advantageously be arranged on an inside of the lens mount. In this way, the at least one guide contour and later the entire rotary plug-in connection can be protected from the environment.

Alternatively or additionally, at least one guide element can advantageously be arranged on the side of the at least one system housing and/or at least one guide contour can be arranged on the side of the objective housing. In this way, the design of the rotary plug-in connection can be more flexibly adapted to the lens used and the lens mount used.

In a further advantageous embodiment, at least one guide element of the rotary plug-in connection can be a guide pin. Guide pins can be implemented easily and in a space-saving manner.

At least one guide element can advantageously be located on a radially outer circumference extend side of the lens housing from radially inside to radially outside. In this way, when the guide pin and the corresponding guide contour are brought together, a connecting force that is axial with respect to the connecting axis can be realized.

In a further advantageous embodiment, at least one guide contour of the rotary plug-in connection
have at least one insertion opening, which extends at least in sections parallel to the connection axis with at least one directional component, and/or have at least one ramp section, which extends with at least one directional component circumferentially to the connection axis and whose axial height with respect to the connection axis varies in the circumferential direction,
and/or have at least one plateau section, which extends with at least one directional component circumferentially to the connection axis and whose axial height in relation to the connection axis is constant in the circumferential direction,
and/or have at least one latching depression, which has respective flanks on opposite sides with respect to the connection axis in the circumferential direction, and/or have at least one contour stop, which protrudes in the axial direction beyond the axially highest point of the at least one plateau section and the at least one ramp section with respect to the connection axis .

At least one guide contour can advantageously have at least one insertion opening. When the at least one lens is installed in the at least one lens mount, at least one guide element can be guided through the at least one insertion opening. In this way, further sections of the at least one guide contour can be arranged on the side of an insertion side of the lens in the at least one lens mount that faces away axially from an edge section of the lens mount, which surrounds a through-opening for the lens. The at least one guide element can thus engage behind the at least one guide contour in these further sections.

Alternatively or additionally, the at least one guide contour can advantageously have at least one ramp section. The at least one ramp section extends circumferentially to the connection axis with at least one directional component. A guide element can thus slide along the at least one ramp section during a rotary movement of the lens. The axial height of the ramp section varies in the circumferential direction.

Advantageously, the at least one ramp section rises in the circumferential direction with respect to the connection axis, viewed from the insertion side of the at least one objective into the at least one objective mount. In this way, the at least one lens is pulled further into the at least one lens mount during the corresponding rotary movement for realizing the rotary plug-in connection due to the guidance of the at least one guide element along the ramp section. In addition, an axial force with respect to the connection axis can be increased by rotating the lens. In conjunction with at least one elastic sealing element acting in a sealing manner in the axial direction, an increase in force up to the end of the ramp section can be realized by the elastic prestressing of the at least one sealing element.

Alternatively or additionally, the at least one guide contour can advantageously have at least one plateau section. The at least one plateau section extends with at least one directional component circumferentially to the connection axis. A guide element can thus slide along the at least one ramp section during a rotary movement of the objective.

The height of the at least one plateau section, which is axial with respect to the connection axis, is constant in the circumferential direction. In this way, the at least one guide element can be guided along the at least one plateau section without the lens being pulled further into the lens mount during the rotary movement. When using an elastic sealing element, in contrast to the ramp section, a constant force required for turning can be realized. It can thus be detected that the at least one guide element is located on the plateau section.

Alternatively or additionally, at least one guide contour can advantageously have at least one latching recess. The detent recess has flanks on opposite sides with respect to the connection axis in the circumferential direction. The at least one guide element can latch in the at least one latching recess. The at least one latching depression can form an end position of the rotary plug-in connection. In this way, the at least one lens can be fixed in the at least one lens mount. To release the rotary plug-in connection, at least the flank of the at least one locking recess, from which the guide element comes during the closing rotary movement of the rotary plug-in connection, can be connected to the at least one guide by rotating with an increased force element to be overcome. The correspondingly increased force can prevent the fixation of the rotary plug connection from loosening in an uncontrolled manner.

Alternatively or additionally, at least one guide contour can have at least one contour stop. The at least one contour stop protrudes in the axial direction beyond the axially highest point of the at least one plateau section and the at least one ramp section with respect to the connection axis. In this way, the at least one contour stop can be used to prevent the at least one objective from being rotated beyond the end position of the rotary plug-in connection and/or being rotated in the wrong direction to release the rotary plug-in connection. Reaching the at least one contour stop with the at least one guide element therefore signals the end of the rotary and plug-in movement.

Advantageously, at least one section of a guide contour can be implemented on the side facing away axially from the connection axis on the side where the at least one lens is inserted into the at least one lens mount. In this way, the at least one guide element can engage behind the at least one section of the guide contour. In this way, a holding force that is axial with respect to the connection axis can be generated, with which the at least one lens can be held in the at least one lens mount.

In a further advantageous embodiment
an axial extent of at least one latching recess of at least one guide contour of the at least one rotary plug-in connection relative to the connection axis must be less than or equal to the axial extent of an elastic sealing element of the at least one sealing device in the relaxed state
and/or an axial distance relative to the connection axis between the axially highest point of a plateau section and a ramp section of at least one guide contour of the at least one rotary plug-in connection and a stop on the part of the component carrying the at least one guide contour may be smaller than an axial distance between at least one Guide element of the rotary plug-in connection and a stop on the part carrying the at least one guide element, which interacts with the stop on the part carrying the at least one guide contour,
and/or an axial distance, relative to the connection axis, between the axially highest point of a contour stop of at least one guide contour of at least one rotary plug-in connection and a stop on the part of the component carrying the at least one guide contour must be greater than an axial distance between at least one guide element of the rotary Plug-in connection and a stop on the part of the component carrying the at least one guide element, which cooperates with the stop on the part of the component carrying the at least one guide contour.

Advantageously, an axial extent of at least one latching depression can be less than or equal to the axial extent of an elastic sealing element of the at least one sealing device in the relaxed state. In this way, in the position of the lens in which the at least one guide element engages in the at least one latching recess, the at least one elastic sealing element can be subjected to a residual compression. As a result, a clamping force is generated with the at least one elastic sealing element, with which the at least one guide element is pulled axially into the at least one latching recess.

Alternatively or additionally, an axial distance between the axially highest point of a plateau section and a ramp section on the one hand and a stop on the part carrying the at least one guide contour on the other hand can advantageously be smaller than an axial distance between the at least one guide element and a stop on the side of the at least one Guide element-bearing component. In this way, the plateau section and the ramp section fit axially between the at least one guide element and the corresponding stop on the part of the component carrying the at least one guide element. The at least one guide element can thus be guided along the plateau section and the ramp section of the at least one guide contour during the rotational movement of the lens relative to the lens mount.

Alternatively or additionally, an axial distance between the axially highest point of a contour stop of at least one guide contour on the one hand and a stop on the part carrying the at least one guide contour on the other hand can advantageously be greater than an axial distance between at least one guide element and a stop on the side of the at least one guide element supporting component. When the stop on the part of the component carrying the at least one guide contour and the stop on the part of the component carrying the at least one guide element meet, an axial travel is limited when the lens is inserted into the lens mount before the at least one guide element reaches the highest point of the contour stop. The contour stop can thus be used to prevent the at least one objective from rotating further relative to the at least one objective mount.

In a further advantageous embodiment
the at least one system housing can be composed of at least two housing parts
and/or the at least one lens mount can be arranged in a lens mount housing part of the at least one system housing
and/or the lens housing can be a lens barrel.

At least one system housing can advantageously be composed of at least two housing parts. In this way, components, in particular at least one image sensor, electrical and/or electronic components, carriers, in particular printed circuit boards, connectors or the like, can be accommodated more easily in the at least one system housing.

The at least two housing parts can advantageously be separable without being destroyed. In this way, the at least one system housing can be opened again, in particular for maintenance purposes.

Alternatively or additionally, the at least one lens mount can advantageously be arranged in a lens mount housing part of the system housing. In this way, the at least one system housing can be manufactured in a modular manner. The at least one lens mount housing part can thus be individually adapted for the at least one lens. In addition, the at least one lens can be prefabricated with the at least one lens mount housing part and then connected to a further housing part of the at least one system housing.

At least one lens mount housing part can advantageously have a receiving area, in particular for at least one image sensor, in particular an image sensor printed circuit board. In this way, the at least one image sensor, in particular the image sensor circuit board, can be attached to the lens mount housing part and then connected together with this and the mounted at least one lens to at least one other housing part of the at least one system housing.

Alternatively or additionally, the lens housing can advantageously be a lens tube. Optical elements, in particular optical lenses, filters or the like, can be easily and stably mounted in a lens barrel. A lens barrel can also be rotationally symmetrical with respect to the connection axis. In this way, the at least one lens can be connected to the at least one lens mount more flexibly with regard to its rotational orientations with respect to the connection axis.

Furthermore, the object is achieved according to the invention with the system housing in that the system housing has at least part of a rotary plug-in connection, with which the at least one lens can be attached in the at least one lens mount, the rotary plug-in connection by means of a rotary - plug-in movement of the lens can be realized relative to the at least one lens mount with respect to an imaginary connection axis,
and the system housing has at least part of at least one sealing device, which can be implemented between an objective housing of the at least one objective and the system housing.

According to the invention, the system housing has at least part of the rotary plug-in connection and at least part of the at least one sealing device. In this way, the system body and the lens can be reliably and tightly connected to each other.

In addition, the object is achieved according to the invention with the lens mount housing part in that the system housing has at least part of a rotary plug-in connection with which the at least one lens can be attached in the at least one lens mount, the rotary plug-in connection being a rotary and plug-in movement of the lens relative to the at least one lens mount can be implemented with respect to an imaginary connection axis,
and the system housing has at least part of at least one sealing device, which can be implemented between an objective housing of the at least one objective and the system housing.

According to the invention, the lens mount housing part has at least part of the rotary plug-in connection and at least part of the at least one sealing device. In this way, the lens receptacle housing part and the lens can be prefabricated with one another and then jointly connected to at least one other housing part of the system housing.

Furthermore, the object is achieved according to the invention with the lens in that the Lens has at least one part of at least one rotary plug-in connection with which the lens can be fastened in at least one lens mount of the system housing, the rotary plug-in connection by means of a rotary plug-in movement of the lens relative to the at least one lens mount with respect to an imaginary connection axis can be implemented, and the objective has at least part of at least one sealing device, which can be implemented between an objective housing of the objective and the system housing.

This allows the lens to be specially prepared for use with the appropriate lens mount. This reduces the risk of incorrect assembly.

Moreover, the object is achieved according to the invention in the vehicle in that the at least one lens is attached by means of a rotary plug-in connection in the at least one lens mount, the rotary plug-in connection by means of a rotary plug-in movement of the lens relative to the at least one lens mount can be realized with respect to an imaginary connection axis,
and at least one sealing device is implemented between an objective housing of the at least one objective and the at least one system housing.

According to the invention, the vehicle has at least one vehicle vision system with which the surroundings and/or the interior of the vehicle can be monitored, in particular for objects.

The vehicle can advantageously have at least one driver assistance system. With the driver assistance system, the vehicle can be operated autonomously or at least partially autonomously.

At least one vehicle vision system can advantageously be connected to at least one driver assistance system of the vehicle. In this way, information about the at least one monitoring area collected with the at least one vehicle vision system can be used with the at least one driver assistance system for autonomous or at least partially autonomous operation of the vehicle.

In addition, the object is achieved according to the invention with the method in that the at least one lens is fastened in the at least one lens mount by means of a rotary plug connection, with a rotary plug-in movement of the lens relative to the at least one lens mount with respect to an imaginary connection axis is carried out, and at least one sealing device is implemented between an objective housing of the at least one objective and the at least one system housing.

According to the invention, the at least one lens is fastened simply and precisely in the at least one lens mount by means of a rotary plug connection.

Furthermore, at least one sealing device is implemented between the objective housing and the at least one system housing, with which the rotary plug-in connection and/or the interior of the system housing is sealed off from the environment. It can thus be prevented that dirt and/or moisture from the environment can get into the interior of the system housing of the vehicle vision system.

Otherwise, the features and advantages shown in connection with the vehicle vision system according to the invention, the system housing according to the invention, the lens holder housing part according to the invention, the lens according to the invention, the vehicle according to the invention and the method according to the invention and their respective advantageous configurations apply to one another and vice versa. The individual features and advantages can of course be combined with one another, in which case further advantageous effects can arise that go beyond the sum of the individual effects.

character list

• 1 ein Kraftfahrzeug mit einem Fahrerassistenzsystem und einer Fahrzeugkamera zur Überwachung eines Überwachungsbereichs in Fahrtrichtung vor dem Kraftfahrzeug;
• 2 eine isometrische Darstellung der Fahrzeugkamera aus der 1 von schräg oben betrachtet;
• 3 einen Teilschnitt der Fahrzeugkamera aus den 1 und 2;
• 4 einen weiteren Teilschnitt der Fahrzeugkamera aus den 1 bis 3 in einer anderen Perspektive;
• 5 den Teilschnitt der Fahrzeugkamera aus der 3, wobei hier das Objektiv entfernt ist,
• 6 eine Detailansicht einer Objektivaufnahme für das Objektiv der Fahrzeugkamera aus den 1 bis 5 im Bereich einer Führungskontur einer Dreh-Steck-Verbindung, mit der das Objektiv in der Objektivaufnahme befestigt werden kann;
• 7 eine isometrische Darstellung des Objektivs der Fahrzeugkamera aus den 1 bis 5;
• 8 eine isometrische Darstellung des Objektivaufnahme-Gehäuseteils mit dem Objektiv der Fahrzeugkamera aus den 1 bis 5 in Blickrichtung auf die Innenseite des Objektivaufnahme-Gehäuseteils;
• 9 eine Explosionsdarstellung des Objektivaufnahme-Gehäuseteils und des Objektivs der Fahrzeugkamera aus den 1 bis 5 in Blickrichtung auf die Außenseite des Objektivaufnahme-Gehäuseteils;
• 10 die Explosionsdarstellung des Objektivaufnahme-Gehäuseteils und des Objektivs aus den 1 bis 5 in Blickrichtung auf die Innenseite des Objektivaufnahme-Gehäuseteils.

Further advantages, features and details of the invention result from the following description, in which exemplary embodiments of the invention are explained in more detail with reference to the drawing. The person skilled in the art will expediently also consider the features disclosed in combination in the drawing, the description and the claims individually and combine them into further meaningful combinations. It show schematic

• 1 a motor vehicle with a driver assistance system and a vehicle camera for monitoring a monitoring area in front of the motor vehicle in the direction of travel;
• 2 an isometric representation of the vehicle camera from the 1 viewed obliquely from above;
• 3 a partial section of the vehicle camera from the 1 and 2 ;
• 4 Another partial section of the vehicle camera from the 1 until 3 in a different perspective;
• 5 the partial section of the vehicle camera from the 3 , with the lens removed here,
• 6 a detailed view of a lens mount for the lens of the vehicle camera from FIGS 1 until 5 in the area of a guide contour of a rotary plug-in connection with which the lens can be fixed in the lens mount;
• 7 an isometric view of the lens of the vehicle camera from the 1 until 5 ;
• 8th an isometric view of the lens mount housing part with the lens of the vehicle camera from the 1 until 5 looking towards the inside of the lens mount housing part;
• 9 an exploded view of the lens mount housing part and the lens of the vehicle camera from the 1 until 5 in the direction of the outside of the lens receiving housing part;
• 10 the exploded view of the lens mount housing part and the lens from the 1 until 5 in the direction of the inside of the lens mount housing part.

The same components are provided with the same reference symbols in the figures.

embodiment(s) of the invention

1 shows a motor vehicle 10 in the form of a passenger car in front view.

Motor vehicle 10 includes a vehicle vision system in the form of a vehicle camera 12. Vehicle camera 12 is arranged on the inside of the windshield of vehicle 10, for example. The vehicle camera 12 can be used to monitor a monitoring area in the direction of travel in front of the vehicle 10 for objects through the windshield.

The vehicle camera 12 may also be located elsewhere on the vehicle 10 and oriented differently to monitor surveillance areas outside or inside the vehicle 10 .

The objects can be stationary or moving objects, for example other vehicles, people, animals, plants, obstacles, uneven road surfaces, for example potholes or stones, road boundaries, traffic signs, open spaces, for example parking lots, precipitation or the like. The vehicle camera 12 can also be designed in such a way that movements and/or gestures can be recorded with it.

Vehicle camera 12 is connected to a driver assistance system 14 . The vehicle 10 can be operated autonomously or partially autonomously with the driver assistance system 14 .

The vehicle camera 12 is designed as a so-called front camera, for example as a windshield camera. the 2 until 10 show the vehicle camera 12 in different perspectives and detail views.

The vehicle camera 12 includes a camera housing 16 which is composed of a base housing part 18 , a base housing part 20 and a lens mount housing part 22 .

The base housing part 18 has in the 2 and 3 above, a stepped portion in which there is a receiving opening for the lens mount housing part 22. When the camera housing 16 is assembled, the receiving opening is closed with the lens receiving housing part 22 .

The bottom of the housing part 20 facing side of the base housing part 18 in which 2 and 3 bottom, forms an installation opening for a main printed circuit board 24. The installation opening is closed with the assembled housing 16 with the bottom housing part 20.

The main circuit board 24 and a sensor circuit board 26 are arranged in the camera housing 16 . The sensor circuit board 26 can be referred to as an “imager PCB”. The sensor circuit board 26 is fastened inside the housing 16 on the back 27 of the lens-receiving housing part 22 .

The sensor printed circuit board 26 extends obliquely to the main printed circuit board 24. On the rear side 27 of the lens receptacle housing part 22, the side of the sensor printed circuit board 26 facing an image sensor 28 is arranged. The image sensor 28 can be referred to as an “imager”. With the image sensor 28, electromagnetic radiation in the form of light can be converted into electrical signals. The image sensor 28 is electrically contacted with conductor tracks of the sensor circuit board 26 .

Various components, for example a microcontroller, are arranged on the main printed circuit board 24 . With the microcontroller, the Vehicle camera 12 are controlled. Furthermore, electrical signals coming from the image sensor 28 can be processed with the microcontroller.

The main circuit board 24 is held between the base housing part 18 and the bottom housing part 20 . The sensor printed circuit board 26 is electrically connected to the main printed circuit board 24 by an electrical connecting line that is of no further interest here.

The lens mount housing part 22 has a lens mount 30 on its front side. A lens 32 is fixed in the lens mount 30 . The lens 32 is aligned in such a way that light from the surveillance area is focused onto the image sensor 28 .

The lens 32 is fastened in the lens mount 30 with a rotary plug-in connection 34 . A sealing device 38 is arranged between an objective housing 36 of the objective 32 and the objective receiving housing part 22 .

The rotary plug-in connection 34 can be implemented by means of a combined rotary-plug-in movement of the lens 32 with respect to an imaginary connection axis 40 relative to the lens mount 30 .

When “radial”, “coaxial”, “axial”, “tangential”, “circumferential”, “concentric”, “eccentric” or the like is mentioned below, this refers to the connection axis, unless otherwise stated 40

The rotary plug connection 34 has, for example, two guide pins 42 and two guide contours 44 . The guide pins 42 are located on the side of the lens 32. The guide contours 44 are arranged on the side of the lens mount 30. In order to implement the rotary plug-in connection 34 , the guide pins 42 are guided along the respective guide contours 44 with the rotary plug-in movement of the lens 32 .

The lens 32 includes the lens housing 36 in which a plurality of optical lenses 46 is arranged. The objective housing 36 is designed, for example, as an objective tube which is essentially rotationally symmetrical with respect to the connection axis 40 . The part of the lens housing 36 which faces the image sensor 28 when the lens 32 is mounted is designed as a circular-cylindrical plug-in section 48 with respect to the connection axis 40 .

A collar 50 is located on the side of the plug-in section 48 that is axially remote from the image sensor 28. The collar 50 extends radially outward on the radially outer peripheral side of the objective housing 36. The side of the collar 50 axially facing the insertion section 48 forms a stop 51 on the lens side.

On the side axially facing the insertion section 48 , the collar 50 also has a sealing groove 52 . The sealing groove 52 extends circumferentially continuously. The sealing groove 52 serves to accommodate a ring seal 54. The ring seal 54 is configured as an elastic O-ring seal, for example. The walls and bottom of the sealing groove 52 serve as sealing surfaces 56 on the objective side.

The sealing groove 52, the O-ring seal 54 and the lens-side sealing surfaces 56 are parts of the sealing device 38.

Furthermore, the two guide pins 42 are arranged on the radially outer peripheral side of the insertion section 52 of the objective housing 36 . The guide pins 42 are located with their sides facing the collar 50 at a distance 58 from the stop 51 of the collar 50.

The guide pins 42 each project radially outwards. For example, the guide pins 42 are identical. The guide pins 42 are on radially opposite sides at the same axial height. In this way, the lens 32 can be installed in the lens mount 30 more flexibly with regard to the rotational orientation.

On the side axially remote from the plug-in section 48, the lens housing 36 has a circular-cylindrical actuation section 60. The outer diameter of the actuation section 60 is larger than the outer diameter of the plug-in section 48. The lens 32 can be attached to the actuation section 46 for movement and installation in the lens mount 30 from the outside, for example be grasped with a gripping tool of a robot or with one hand.

The objective mount 30 has a circular push-through opening 62 on its end face axially remote from the sensor printed circuit board 26 . The inner diameter of the through-opening 62 is so large that the plug-in section 48 of the lens 32 can be inserted into the through-opening 62 for assembly. The inner diameter of the insertion opening 62 is approximately the same size as the outer diameter of the insertion section 48.

The push-through opening 62 is circumferentially connected to an edge section 64 surround. On its front side facing away from the sensor printed circuit board 26 , the edge section 64 has a sealing surface 66 on the receiving side for interacting with the ring seal 54 . The sealing surface 66 on the receiving side is part of the sealing device 38.

Furthermore, the front side of the edge section 64 forms a stop 65 on the holder side. The stop 65 on the holder side can interact with the stop 51 on the objective side.

The guide contours 44 are arranged inside the lens mount 30 . The guide contours 44 are located on the side of the edge section 64 that is axially opposite the sealing surface 66. The two guide contours 44 are arranged on radially opposite sides. The guide contours 44 are axisymmetric with respect to the connection axis 40 . One of the guide pins 42 is guided in each of the guide contours 44 during the rotary and plug-in movement for mounting the lens 32 .

In the 6 a section through the lens mount 30 is shown with a view of one of the guide contours 44, which will be described below.

The guide contour 44 comprises an insertion opening 68, a ramp section 70, a plateau section 72, a latching recess 74 and a contour stop 76.

The insertion hole 68 extends in the radially inner peripheral side of the skirt portion 64 in the axial direction and radially outward.

The radial extent of the insertion opening 64 is somewhat greater than the radial extent of the guide pins 42. Viewed in the axial direction, the insertion opening 68 has a constant circumferential extent. The circumferential extension is slightly larger than the diameter of the guide pins 42. When installing the lens 32, the corresponding guide pin 42 is guided in the insertion opening 68 and thus the lens 32 relative to the lens mount 30 in the axial direction up to the rear of the edge section 64.

The ramp section 70, the plateau section 72, the locking recess 74 and the contour stop 76 are located on the back of the edge section 64.

Viewed in the circumferential direction, next to the insertion opening 68 is the ramp section 70 . Viewed from the insertion opening 78 in the circumferential direction, the axial height of the ramp section 70 increases continuously.

The plateau section 72 adjoins the end of the ramp section 70 that is circumferentially opposite the insertion opening 68 . The plateau section 78 is at the same level as the highest point of the ramp section 70. The axial height of the plateau section 72 is constant when viewed in the circumferential direction.

The detent depression 74 adjoins the end of the plateau section 72 which is remote from the ramp section 70 viewed in the circumferential direction. The locking recess 74 has approximately the profile of a semi-cylinder, the axis of which extends radially. The diameter of the half cylinder is slightly larger than the diameter of the guide pins 42.

Contour stop 76 is located on the opposite side of latching recess 74 from plateau section 72, viewed in the circumferential direction. Contour stop 76 extends in the axial direction and protrudes beyond the highest point of plateau section 72 and the highest point of ramp section 70.

An axial distance 78 between the highest point of the contour stop 76 and the stop 65 on the mount is greater than the distance 58 between the guide pins 42 and the stop 51 on the lens side Guide pin 42 moves beyond the contour stop 76 and so the guide pin 42 can be unintentionally rotated out of the guide contour 44.

An axial extent 80 of the locking recess 74 with respect to the connection axis 40, ie its depth, is smaller than the axial extent 82 of the ring seal 54, ie its thickness. In this way, when the guide pin 42 engages in the detent recess 74, the ring seal 54 remains at least partially compressed. With the remaining elastic prestressing of the ring seal 54, the guide pin 42 can be held in the locking recess 74 in the axial direction.

An axial distance 84 between the axially highest point of the plateau section 72 and the ramp section 70 and the stop 65 on the mount is smaller than the distance 58 between the guide pin 42 and the stop 51 on the lens. In this way, there is sufficient play in the axial direction so that the guide pin 42 can be moved over the highest points of the ramp section 70 and the plateau section 72 by appropriately compressing the ring seal 54 .

A method for manufacturing the vehicle camera 12 is explained in more detail below.

The base housing part 18, the bottom housing part 20 and the lens mount housing part 22 are manufactured separately from one another, for example from plastic, metal or another material or a material mixture, for example injection molded.

Irrespective of this, the main printed circuit board 24 is equipped with the corresponding electronic components, namely the microcontroller and other components that are of no further interest here, and a plug-in connection. The sensor circuit board 26 is fitted with the image sensor 28 .

The sensor module 28 is attached to the back 27 of the lens mount housing part 22 .

The lens 32 is inserted with the insertion section 48 first in the axial direction into the insertion opening 62 of the lens mount 30 of the lens mount housing part 22 . In doing so, it may be necessary to rotate the lens 32 about the connection axis 40 in order to bring the guide pins 42 and the respective insertion openings 68 together.

The lens 32 is then inserted in the axial direction into the insertion opening 62 with an insertion movement, with the guide pins 42 being guided in the insertion openings 68 .

Shortly before the guide pins 42 reach the ends of the insertion openings 68, the ring seal 54 abuts against the receiving-side sealing surface 66. In order to insert the lens 32 deeper into the insertion opening 62, an increase in the axially directed force is required. The ring seal 54 is pressed with the axially directed force and is thus elastically prestressed. Due to the increased effort, it can be realized that in addition to the insertion movement, a rotary movement can now be started.

The lens 32 is rotated clockwise about the connection axis 40 relative to the lens mount 30 when viewed from the outside, for example. In doing so, the guide pins 42 are guided with the corresponding ramp sections 70 . In this case, an increasing effort is required for the rotation. Due to the increasing compression of the ring seal 54, the elastic restoring force increases, making rotation more difficult.

Due to the guidance of the guide pins 42 on the ramp sections 70, the lens 32 is continuously pulled in the axial direction against the elastic pretensioning force of the ring seal 54 into the lens mount 30. Once the plateau portions 72 are reached, no further increase in torque is required to rotate the lens 32 further.

As soon as the guide pins 42 reach the respective latching recess 74 as the lens 32 is rotated further, the guide pins 42 are pulled into the latching recess 74 in the axial direction by the elastic restoring force of the ring seal 42 . The contour stop 76 prevents the lens 32 from rotating any further.

In order to detach the lens 32 from the lens mount 30 again, for example for maintenance purposes, the elastic restoring force of the ring seal 54 must first be overcome. For this purpose, for example, the lens 32 can first be pressed in the axial direction into the lens mount 30 . Then, by turning the lens 32 in the opening direction, the guide pins 42 can each be guided onto the corresponding plateau sections 72, from there onto the corresponding ramp sections 70 and finally into the respective insertion openings 68. The lens 32 can now be pulled out of the insertion opening 62 with a pulling movement.

Rotating the lens 32 in the wrong direction to open it is prevented by the guide pins 42 being blocked by the contour stops 76 in each case. As already described above, the objective-side stop 51 and the mount-side stop 65 prevent the guide pins 42 from being able to be moved beyond the contour stops 76 .

The objective housing part 22 with the objective 32 and the sensor printed circuit board 26 is then brought from the outside into the accommodation opening of the base housing part 18 .

Thereafter, the main printed circuit board 24 is brought into the installation opening of the base housing part 18 .

The connection line between the sensor circuit board 26 and the main circuit board 24 is installed before or after the assembly of the main circuit board 24 .

The bottom housing part 20 is brought into the installation opening of the base housing part 18 . The bottom housing part 20 is then fixed to the base housing part 18 by means of screws, for example.

By combining the guide pins 42 with the guide contours 44 and the elastic Prestressing of the ring seal 54 causes a precise and secure mounting of the lens 32 in the lens mount 30 . Furthermore, the lens 32 is automatically and precisely aligned with the image sensor 28 with the rotary plug-in connection 34 . In addition, the ring seal 54 prevents dirt and moisture from the environment from getting into the lens mount 30 and the image sensor 28 .

The assembly of the vehicle camera 12 is, for example, carried out in a fully automated manner, for example by means of robots or the like. Alternatively, individual or all steps of the manufacturing process can also be carried out manually.

The order of the method steps in assembling the vehicle camera 12 can also be varied as appropriate.

Claims (15)

Vehicle vision system (12) with at least one system housing (16) in which at least one image sensor (28) is arranged and which has at least one lens mount (30) in which at least one lens (32) is arranged, the at least one lens (32) is aligned with the at least one image sensor (28), characterized in that the at least one lens (32) is fastened in the at least one lens mount (30) by means of a rotary plug connection (34), the rotary A plug-in connection (34) can be implemented by means of a rotary plug-in movement of the lens (32) relative to the at least one lens mount (30) with respect to an imaginary connection axis (40), and between a lens housing (36) of the at least one lens (32 ) and the at least one system housing (16) at least one sealing device (38) is realized. vehicle vision system claim 1 , characterized in that the at least one sealing device (38) has an axial and/or radial sealing effect with respect to the connecting axis (40) and/or the at least one sealing device (38) has at least one elastic and/or annular sealing element (54). vehicle vision system claim 1 or 2 , characterized in that the at least one sealing device (38) has at least one sealing surface (56) on the side of the objective housing (36) and/or the at least one sealing device (38) has at least one sealing surface (66) on the side of the system housing (16) and/ or the at least one sealing device (38) has at least one sealing surface (56, 66) which extends circumferentially with respect to the connection axis (40). Vehicle vision system according to one of the preceding claims, characterized in that at least one lens-side part (56) of the at least one sealing device (38) is arranged on the radially outer peripheral side of the lens housing (36) with respect to the connection axis (40) and/or at least one the receiving-side part (66) of the at least one sealing device (38) is arranged on an end face of the system housing (16) that is axial in relation to the connection axis (40). Vehicle vision system according to one of the preceding claims, characterized in that the at least one sealing device (38) has at least one sealing receptacle (52) for at least one sealing element (54). Vehicle vision system according to one of the preceding claims, characterized in that the rotary plug-in connection (34) has at least one guide element (42) and at least one guide contour (44), which during the rotary plug-in movement guides the at least forms a guide element (42), and/or at least one guide element (42) of the rotary plug-in connection (34) is arranged on the lens housing (36) and/or at least one guide contour (44) of the rotary plug-in connection (34 ) is arranged on the at least one system housing (16). Vehicle vision system according to one of the preceding claims, characterized in that at least one guide element (42) of the rotary plug-in connection (34) is a guide pin. Vehicle vision system according to one of the preceding claims, characterized in that at least one guide contour (44) of the rotary plug-in connection (34) has at least one insertion opening (68) which extends at least in sections with at least one directional component parallel to the connection axis (40) and/or has at least one ramp section (70) which extends with at least one directional component circumferentially to the connection axis (40) and whose axial height varies in the circumferential direction with respect to the connection axis (40), and/or has at least one plateau section (72). , which extends with at least one directional component circumferentially to the connection axis (40) and with respect to the connection axis (40) axial height in the circumferential direction kon is constant, and/or has at least one latching recess (74), which has flanks on opposite sides in the circumferential direction with respect to the connection axis (40), and/or has at least one contour stop (76), which has the axial position with respect to the connection axis (40). the highest point of the at least one plateau section (72) and the at least one ramp section (70) protrudes in the axial direction. Vehicle vision system according to one of the preceding claims, characterized in that an axial extent (80) of at least one latching depression (74) of at least one guide contour (44) of the rotary plug-in connection (34) with respect to the connection axis (40) is less than or equal to axial expansion (82) of an elastic sealing element (54) of the at least one sealing device (38) in the relaxed state and/or an axial distance (84) relative to the connecting axis (40) between the axially highest point of a plateau section (72) and a ramp section (70) of at least one guide contour (44) of the rotary plug-in connection (34) and a stop (65) on the part (22) carrying the at least one guide contour (44) is smaller than an axial distance (58) between at least one Guide element (42) of the rotary plug-in connection (34) and a stop (51) on the side of the component (36) carrying the at least one guide element (42), which stops with the stop (65 ) cooperates on the part of the component (22) carrying the at least one guide contour (44), and/or an axial distance (78) relative to the connecting axis (40) between the axially highest point of a contour stop (76) of at least one guide contour (44) of the rotary plug-in connection (34) and a stop (65) on the part (22) carrying the at least one guide contour (44) is greater than an axial distance (58) between at least one guide element (42) of the rotary plug-in connection ( 34) and a stop (51) on the part (36) carrying the at least one guide element (42), which interacts with the stop (65) on the part (22) carrying the at least one guide contour (44). Vehicle vision system according to one of the preceding claims, characterized in that the at least one system housing (16) is composed of at least two housing parts (18, 20, 22) and/or the at least one lens mount (30) is in a lens mount housing part (22 ) of the at least one system housing (16) is arranged and/or the lens housing (36) is a lens barrel. System housing (16) for a vehicle vision system (12), which has at least one housing part (22) in which at least one image sensor (28) can be arranged and which has at least one lens mount (30) in which at least one lens (32 ) can be arranged in such a way that it is aligned with the at least one image sensor (28), characterized in that the system housing (16) has at least part (44) of a rotary plug-in connection (34) with which the at least one The lens (32) can be fastened in the at least one lens mount (30), the rotary plug-in connection (34) by means of a rotary plug-in movement of the lens (32) relative to the at least one lens mount (30) with respect to an imaginary Connection axis (40) can be realized, and the system housing (16) has at least one part (66) of at least one sealing device (38) which is located between a lens housing (36) of the at least one lens (32) and the system housing se (16) can be realized. Lens mount housing part (22) for a system housing (16), which has an area (27) for arranging at least one image sensor (28) and at least one lens mount (30), in which at least one lens (32) can be arranged such that it is aligned with the at least one image sensor (28), characterized in that the system housing (16) has at least part (44) of a rotary plug-in connection (34) with which the at least one lens (32) in the at least a lens mount (30) can be attached, wherein the rotary plug-in connection (34) can be realized by means of a rotary plug-in movement of the lens (32) relative to the at least one lens mount (30) with respect to an imaginary connection axis (40), and the system housing (16) has at least one part (66) of at least one sealing device (38) which can be implemented between an objective housing (36) of the at least one objective (32) and the system housing (16). Lens (32) for a vehicle vision system (12), which has at least one element (42) with which it can be connected to a system housing (16) of the vehicle vision system (12), characterized in that the lens (32 ) at least one part (42) has at least one rotary plug-in connection (34) with which the lens (32) can be fastened in at least one lens mount (30) of the system housing (16), the rotary plug-in connection ( 34) by means of a rotary and plug-in movement of the lens (32) relative to the at least one lens mount (30) with respect to an imaginary connection axis (40), and the objective (32) has at least one part (52, 56) of at least one sealing device (38), which can be implemented between an objective housing (36) of the objective (32) and the system housing (16). . Vehicle (10) with at least one vehicle vision system (12), wherein the at least one vehicle vision system (12) has at least one system housing (16), in which at least one image sensor (28) is arranged and which has at least one lens mount (30) in which at least one lens (32) is arranged, the at least one lens (32) being aligned with the at least one image sensor (28), characterized in that the at least one lens (32) is connected by means of a rotary plug connection (34) is fastened in the at least one lens mount (30), the rotary plug-in connection (34) being connected by means of a rotary plug-in movement of the lens (32) relative to the at least one lens mount (30) with respect to an imaginary connection axis ( 40) can be implemented, and at least one sealing device (38) is implemented between an objective housing (36) of the at least one objective (32) and the at least one system housing (16). Method for producing a vehicle vision system (12), in which at least one image sensor (28) is arranged in at least one system housing (16) and at least one lens (32) is arranged in at least one lens mount (30) of the system housing (16), the at least one lens (32) being aligned with the at least one image sensor (28), characterized in that the at least one lens (32) is fastened in the at least one lens mount (30) by means of a rotary plug-in connection (34). , wherein the lens (32) rotates and plugs in relative to the at least one lens mount (30) with respect to an imaginary connection axis (40), and between a lens housing (36) of the at least one lens (32) and the at least one System housing (16) at least one sealing device (38) is realized.

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