A bayonet, adapter ring, lens and image pickup device

Abstract

The application belongs to the technical field of photography, and particularly relates to a bayonet, an adapter ring, a lens and an image pickup device. The bayonet comprises a bayonet main body, a mounting component, a fixed protruding part and a movable protruding part. The mounting component is connected to the bayonet main body and is used for connecting the bayonet main body to the lens. The movable protruding part and the fixed protruding part are connected to the bayonet main body. When the movable protruding part is screwed on the camera main body, the movable protruding part swings around the middle position as the center and swings away from the optical axis and is clamped with the camera main body. The adapter ring comprises an adapter ring main body and the above-mentioned bayonet. The lens comprises a lens main body and the above-mentioned bayonet. The image pickup device comprises a camera main body and the above-mentioned lens. The bayonet, the adapter ring, the lens and the image pickup device provided by the application can reduce the collision and the jamming feeling caused by assembly by cooperation of the fixed protruding part and the movable protruding part under the condition of ensuring reliable assembly, and improve the use experience of users.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of photography, and more particularly relates to a bayonet, an adapter ring, a lens and an image pickup device. BACKGROUND

[0002] With the continuous development of social economy, people's demand for spiritual and cultural and entertainment experience is increasing while their material life is constantly enriched, which promotes more and more consumers to engage in the field of photography. Users such as photography enthusiasts put forward higher standards for the performance, operation experience and detail design of cameras and related image equipment.

[0003] At present, the mainstream camera is usually composed of a body and a lens. In order to facilitate carrying and storage, the body is provided with a special bayonet, and a plurality of claws are distributed on the bayonet; the lens end is provided with a matching bayonet and is provided with corresponding claws or protruding structures. The two are connected quickly and detachably through the claws (or protrusions) engaging with each other. However, in the process of connecting the existing lens bayonet structure with the body, the claws are often not accurately aligned or the structure is not optimized, which causes collision during installation, disassembly or assembly, and the phenomenon of jamming, thereby affecting the smoothness of operation and the overall user experience. SUMMARY

[0004] The purpose of the embodiment of the application is to provide a bayonet, an adapter ring, a lens and an image pickup device to solve the technical problems that the claws of the bayonet and the camera body are easy to collide and jam when the lens and the camera body are connected.

[0005] To achieve the above purpose, the technical scheme adopted by the embodiment of the application is:

[0006] In a first aspect, the bayonet provided by the embodiment of the application can be used to connect the lens to the camera body, and the bayonet comprises:

[0007] A bayonet body;

[0008] A mounting component connected to the bayonet body and used to connect the bayonet body to the lens;

[0009] A fixed protruding part connected to the bayonet body;

[0010] A movable protruding part connected to the bayonet body, when the movable protruding part is screwed on the camera body, the movable protruding part swings away from the optical axis and is connected to the camera body.

[0011] Optionally, the movable protrusion has a first protrusion and a second protrusion with equal length, the first protrusion is closer to the optical axis than the second protrusion in the initial state, and the first protrusion moves away from the optical axis and protrudes out of the outer edge of the lens mount body when the movable protrusion is screwed on the camera body.

[0012] Optionally, the first protrusion moves away from the optical axis and is flush with the second protrusion after the movable protrusion is screwed on the camera body.

[0013] Optionally, the first protrusion or / and the second protrusion protrudes out of the outer edge of the lens mount body in the initial state.

[0014] Optionally, the first protrusion or / and the second protrusion is closer to the optical axis than the fixed protrusion in the initial state.

[0015] Optionally, the first protrusion moves towards the optical axis after the movable protrusion is triggered to be disengaged from the lens mount body.

[0016] Optionally, the length of the first protrusion is equal to the length of the second protrusion.

[0017] Optionally, the movable protrusion further has a rotating portion connected to the first protrusion and the second protrusion, the rotating portion is rotatably connected to the lens mount body, so that the first protrusion and the second protrusion can swing around the rotating portion.

[0018] Optionally, the rotating portion is located at the middle position of the first protrusion and the second protrusion.

[0019] Optionally, the first protrusion swings away from the optical axis around the rotating portion, and the second protrusion swings towards the optical axis around the rotating portion when the movable protrusion is screwed on the camera body.

[0020] Optionally, the movable protrusion further comprises a pressing portion for abutting against the camera body and pushing the movable protrusion to move away from the optical axis, the pressing portion is connected to the second protrusion.

[0021] Optionally, the pressing portion protrudes out of the outer edge of the lens mount body in the initial state.

[0022] Optionally, the pressing portion is connected to the side of the second protrusion away from the camera body.

[0023] Optionally, the bayonet further includes a reset component connected to the bayonet body and used to reset the movable protrusion, the reset component being connected to the movable protrusion.

[0024] Optionally, one end of the reset component abuts against the movable protrusion and squeezes the reset component when the movable protrusion is screwed onto the camera body, so that the reset component enters an energy storage state.

[0025] Optionally, the reset component is an elastic sheet, which is attached to the bayonet body, and one end of the elastic sheet abuts against the side of the first protrusion of the movable protrusion away from the optical axis, or abuts against the side of the second protrusion close to the optical axis.

[0026] The angle formed by the lines connecting the two ends of the fixed protrusion in the length direction to the optical axis is the same as the angle formed by the lines connecting the two ends of the movable protrusion in the length direction to the optical axis; and / or, the angle formed by the lines connecting the two ends of the movable protrusion in the length direction to the optical axis in the initial state is the same as the angle formed by the lines connecting the two ends of the movable protrusion in the length direction to the optical axis after swinging.

[0027] Optionally, the angle formed by the lines connecting the two ends of the fixed protrusion along its length to the optical axis is greater than or equal to 42°, and the angle formed by the lines connecting the two ends of the movable protrusion along its length to the optical axis is greater than or equal to 42°.

[0028] Optionally, the movable protrusion has a limiting protrusion for abutting against the bayonet body to limit the range of movement of the movable protrusion.

[0029] The bayonet provided in this application embodiment has at least the following beneficial effects: Compared with the prior art, the bayonet provided in this application embodiment, when attaching the lens to the camera body, inserts the movable protrusion and the fixed protrusion into the corresponding notch of the camera body. When the movable protrusion is screwed onto the camera body, at most half of its length moves and engages with the camera mount of the camera body, allowing the lens to be securely mounted on the camera body. Thus, during assembly, the movable protrusion is in its initial state, reducing collisions with the camera mount. After assembly, triggered by the screwing of the camera body, the movable protrusion swings away from the optical axis from its center position and engages with the camera body. This ensures reliable assembly while reducing collisions and the feeling of jamming during assembly, improving the user experience.

[0030] Secondly, embodiments of this application also provide an adapter ring, including an adapter ring body and a bayonet as described above, the bayonet being connected to the adapter ring body.

[0031] The adapter ring provided in this application embodiment has at least the following beneficial effects: Compared with the prior art, the adapter ring provided in this application embodiment can be used between the lens and the camera body to connect lens mounts of different standards to the camera body. Utilizing the movable protrusion of the mount, during assembly, the movable protrusion is in its initial state, which can reduce collisions with the camera mount. After assembly, under the triggering of the camera body's rotation, the movable protrusion moves away from the optical axis and engages with the camera body. While ensuring reliable assembly, it reduces collisions and the feeling of jamming during assembly, improving the user experience.

[0032] Thirdly, embodiments of this application also provide a lens, including a lens body and a bayonet as described above, the bayonet being connected to the lens body.

[0033] The lens provided in this application embodiment has at least the following beneficial effects: Compared with the prior art, the lens provided in this application embodiment utilizes the movable protrusion of the mount. During assembly, the movable protrusion is in its initial state, which can reduce collisions with the camera mount. After assembly, under the triggering of the camera body's rotation, the movable protrusion moves away from the optical axis and engages with the camera body. While ensuring reliable assembly, it reduces collisions and the feeling of jamming during assembly, thus improving the user experience.

[0034] Fourthly, embodiments of this application also provide an image acquisition device, including a camera body with a camera mount and a lens as described above, wherein the lens is connected to the camera mount of the camera body through the mount.

[0035] The image pickup device provided in this application embodiment has at least the following beneficial effects: Compared with the prior art, the image pickup device provided in this application embodiment can reduce the collision between the lens and the camera body, improve the smoothness of assembly, and enhance the user experience. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 A three-dimensional structural diagram of the bayonet provided in the embodiments of this application. Figure 1 ;

[0038] Figure 2 This is an exploded view of the bayonet structure provided in an embodiment of this application;

[0039] Figure 3 A three-dimensional structural diagram of the bayonet provided in the embodiments of this application. Figure 2 ;

[0040] Figure 4 A top view of the bayonet (in its initial state) provided in an embodiment of this application;

[0041] Figure 5 A top view of the bayonet (in the triggered state) provided in an embodiment of this application;

[0042] Figure 6 A schematic diagram illustrating the docking of the bayonet mount and the camera bayonet mount provided in an embodiment of this application;

[0043] Figure 7 A schematic diagram of the structure of the bayonet and camera bayonet in the initial state provided in the embodiments of this application;

[0044] Figure 8 for Figure 7 A magnified view of a section at point A in the middle;

[0045] Figure 9 A schematic diagram illustrating the structure of the bayonet and camera bayonet engagement (triggered state) provided in an embodiment of this application;

[0046] Figure 10 A top view of the bayonet and camera bayonet in their initial state as provided in an embodiment of this application;

[0047] Figure 11 A top view of the bayonet and camera bayonet in engagement (triggered state) provided in an embodiment of this application;

[0048] Figure 12 A three-dimensional structural diagram of the movable protrusion used in the embodiments of this application. Figure 1 ;

[0049] Figure 13 A three-dimensional structural diagram of the movable protrusion used in the embodiments of this application. Figure 2 ;

[0050] Figure 14 A three-dimensional structural diagram of the lens provided in an embodiment of this application;

[0051] Figure 15 A three-dimensional structural diagram of a camera provided in an embodiment of this application;

[0052] Figure 16 This is a schematic diagram of the exploded structure of a camera provided in an embodiment of this application.

[0053] The following are the labeling elements in the figure:

[0054] 1. Bayonet; 11. Bayonet body; 111. Main body; 112. Bayonet part; 113. Mounting part; 114. Fixing protrusion; 115. Mounting component; 116. Positioning groove; 117. Anti-rotation screw; 12. Movable protrusion; 121. First protrusion; 122. Second protrusion; 123. Rotating part; 124. Pressing part; 125. Limiting protrusion; 126. Fastener; 13. Reset component; 131. Reset fastener; 14. Decorative ring;

[0055] 2. Camera body; 21. Camera mount; 211. Camera claw; 212. Mounting notch;

[0056] 3. Lens body; 31. Exterior parts; 32. Contact points. Detailed Implementation

[0057] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0058] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0059] It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0060] The various specific technical features and embodiments described in the detailed implementation can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / implementations / implementation methods. In order to avoid unnecessary repetition, the various possible combinations of the various specific technical features / implementations / implementation methods in this application will not be described separately.

[0061] Please refer to this as well. Figure 1 and Figure 14 In this embodiment of the application, the bayonet 1 can be installed as a component in the lens (e.g., Figure 14 As shown), it can also be installed as a component in an adapter ring (the adapter ring allows lenses of different mount 1 standards to be mounted on the camera body 2), and the mount 1 can be set to various mount 1 standards according to the camera. For ease of explanation, this application embodiment will describe the usage scenario with the mount 1 mounted on the lens, but this is not a limitation of this application embodiment. This application embodiment can also be applied to adapter rings or other devices.

[0062] Please refer to Figures 1 to 3 The bayonet 1 of this application embodiment includes a bayonet body 11, a mounting component 115, a movable protrusion 12, and a fixed protrusion 114. The mounting component 115 is connected to the bayonet body 11 and is used to mount the bayonet body 11 onto the lens body 3. The movable protrusion 12 and the fixed protrusion 114 are connected to the bayonet body 11. The movable protrusion 12 swings away from the optical axis (i.e., the Z-axis in the figure) with the center position as the center. When the lens equipped with the bayonet 1 of this application embodiment docks with the camera body 2, the camera body 2 is provided with a camera bayonet 21, which has camera claws 211 for docking. At this time, the movable protrusion 12 can align with the corresponding mounting notch 212 on the camera bayonet 21. Since the movable protrusion 12 has not yet been triggered by the camera body 2 and is still in the initial state, it will not directly collide with the camera bayonet 21, thereby making the docking process between the lens and the camera body 2 smoother and significantly improving the feel when docking the lens with the camera body 2.

[0063] like Figures 4 to 11As shown, when the lens is docked with the camera body 2 and rotated, the camera mount 21 of the camera body 2 will contact the movable protrusion 12. That is, during the process of the movable protrusion 12 screwing onto the camera body 2, part of its position will move away from the optical axis, thereby enabling the movable protrusion 12 to engage with the camera body 2 and mount the lens onto the camera body 2. Conversely, when removing the lens, rotating the lens in the opposite direction will release the trigger state between the camera body 2 and the movable protrusion 12. At this time, the movable protrusion 12 can return to its initial state and move towards the optical axis, allowing the lens to be removed. During this process, the movable protrusion 12, which is closer to the optical axis, can reduce collisions with the camera claws 211 of the camera mount 21. Through this design, during the docking process between the lens and the camera body 2, the movable protrusion 12 of the mount 1 effectively reduces direct collisions between the mount 1 and the camera body 2, making the lens mounting and dismounting smoother and significantly improving the feel of lens mounting and dismounting.

[0064] For example, the mounting component 115 can be a bayonet 1 screw, and the bayonet body 11 is provided with a plurality of screw holes at intervals, through which the bayonet 1 screw can be connected to the lens.

[0065] In other embodiments, the mounting component 115 may also be a snap-fit, adhesive, or threaded structure, etc.

[0066] As one optional embodiment of this application, the movable protrusion 12 has a first protrusion 121 and a second protrusion 122. In the initial state, the first protrusion 121 is closer to the optical axis than the second protrusion 122. When the movable protrusion 12 is screwed onto the camera body 2, under the action of the camera body 2, the first protrusion 121 of the movable protrusion 12 moves away from the optical axis and protrudes from the outer edge of the bayonet body 11 to engage with the camera claw 211 of the camera mount 21. With this design, when the lens is docked with the camera body 2, the first protrusion 121, which is closer to the optical axis, can significantly reduce the collision between the movable protrusion 12 and the camera body 2, improving the lens mounting feel; while when the lens is docked and rotated, with the trigger of the camera body 2 (camera mount 21), the movable protrusion 12 moves and approaches the camera claw 211, so that the two engage, ensuring the reliability of the lens mounting.

[0067] It should be noted that, in the embodiments of this application, the first protrusion 121 being closer to the optical axis than the second protrusion 122 means that, among the sides of the first protrusion 121 and the second protrusion 122 in the same direction, at least one side of the first protrusion 121 is closer to the optical axis, and the other sides being closer to the optical axis can also be understood in the same way.

[0068] Furthermore, as one optional implementation method of this application, please refer to... Figures 4 to 6After the movable protrusion 12 is screwed onto the camera body 2, the first protrusion 121 moves away from the optical axis and becomes flush with the second protrusion 122, so that the first protrusion 121 and the second protrusion 122 of the movable protrusion 12 can engage with the camera mount 21, ensuring the reliability of the lens installation.

[0069] Furthermore, as one of the optional embodiments of this application, the first protrusion 121 and / or the second protrusion 122 protrude from the outer edge of the bayonet body 11 in the initial state, so that the movable protrusion 12 can be designed to be more compact with the bayonet body 11, reducing the volume of the bayonet body 11 and improving space utilization.

[0070] In practical applications, the first protrusion 121 can protrude slightly beyond the main body 11 of the mount to minimize direct collision between the movable protrusion 12 and the camera mount 21. The second protrusion 122 can protrude more beyond the main body 11 of the mount than the first part to achieve better space utilization.

[0071] Furthermore, as one of the optional embodiments of this application, the first protrusion 121 or / and the second protrusion 122 are closer to the optical axis than the fixed protrusion 114 in the initial state. The design of being closer to the optical axis makes the movable protrusion 12 more compact in the initial state, further reducing the portion of the movable protrusion 12 exposed on the outer edge of the bayonet body 11, which helps to reduce the direct collision between the movable protrusion 12 and the camera bayonet 21.

[0072] In specific applications, in the initial state, the second protrusion 122 can be basically flush with the fixed protrusion 114, or the second protrusion 122 can protrude more from the outer edge of the mount body 11. After the lens and camera body 2 are rotated and installed, the second protrusion 122 can be flush with the first protrusion 121 and the fixed protrusion 114.

[0073] As one of the optional implementation methods of this application, please refer to Figures 4 to 5 After the active protrusion 12 is released from the trigger state of the mount body 11, the first protrusion 121 moves towards the optical axis. With this design, when the lens is reversed and removed from the camera body 2, the first protrusion 121 can move towards the optical axis, reducing the area of ​​the first protrusion 121 protruding from the outer edge of the mount body 11, thereby reducing the direct collision between the mount 1 and the camera mount 21 and improving the user experience.

[0074] As one of the optional implementation methods of this embodiment, please refer to Figure 4 and Figure 5The first protrusion 121 has a length dimension equal to that of the second protrusion 122, allowing the movable protrusion 12 to screw onto the camera body 2 and move approximately half its length in the opposite direction away from the optical axis. This design, by appropriately setting the dimensions of the first and second protrusions 121 and 122, ensures better balance between them in the initial state and during swinging, making the swinging and engagement of the movable protrusion 12 more reliable.

[0075] It should be noted that the dimensions of the first protrusion 121 and the second protrusion 122 in the length direction refer to the fact that the first protrusion 121 and the second protrusion 122 are roughly strip-shaped arc structures, and their lengths or the angles corresponding to their lengths in the circumferential direction of the main body 11 are basically the same. That is, the arc length (or the angle corresponding to the arc length) of the first protrusion 121 in the circumferential direction is basically the same as the arc length (or the angle corresponding to the arc length) of the second protrusion 122 in the circumferential direction.

[0076] Specifically, as one of the optional implementation methods of this application, please refer to Figure 4 , Figure 12 and Figure 13 The movable protrusion 12 also has a rotating part 123, which is connected to the first protrusion 121 and the second protrusion 122. The rotating part 123 is rotatably connected to the bayonet body 11. During the lens assembly and disassembly process, the first protrusion 121 and the second protrusion 122 of the movable protrusion 12 can swing around the rotating part 123. This design allows the first protrusion 121 and the second protrusion 122 to move closer to or away from the optical axis through the rotating part 123, thereby reducing the collision between the movable protrusion 12 and the camera bayonet 21, as well as the locking effect with the camera claw 211.

[0077] Specifically, as one of the optional implementation methods of this application, please refer to Figures 4 to 5 When the movable protrusion 12 is screwed onto the camera body 2, the first protrusion 121 can swing around the rotating part 123 in a direction away from the optical axis, while the second protrusion 122 can swing around the rotating part 123 in a direction closer to the optical axis.

[0078] Specifically, as one of the optional embodiments of this application, the rotating part 123 is located at the middle position of the first protrusion 121 and the second protrusion 122, that is, the first protrusion 121 and the second protrusion 122 swing around the middle position of the movable protrusion 12.

[0079] In practical applications, in the initial state, the second protrusion 122 is located further away from the optical axis than the first protrusion 121 (i.e., the second protrusion 122 protrudes more from the outer edge of the mount body 11). When the lens is rotated and mounted on the camera body 2, under the action of the camera body 2, the second protrusion 122 of the movable protrusion 12 swings towards the optical axis with the rotating part 123 as the center, and the first protrusion 121 swings away from the optical axis with the rotating part 123 as the center, so that the outer edges of the first protrusion 121 and the second protrusion 122 are basically flush and engage with the camera jaws 211. In this way, by utilizing the cooperative design of the rotating part 123, the first protrusion 121 and the second protrusion 122, the area of ​​the movable protrusion 12 exposed on the outer edge of the mount body 11 in the initial state is effectively reduced, the collision between the mount 1 and the camera mount 21 is reduced, and the feel of lens mounting and dismounting is improved. Meanwhile, since the rotating part 123 is located in the middle of the first protrusion 121 and the second protrusion 122, that is, the first protrusion 121 and the second protrusion 122 are basically the same in length, when the two swing around the rotating part 123, they can maintain better swing reliability and make the feel of the lens docking rotation better.

[0080] As one of the optional implementation methods of this application, please refer to Figure 7 , Figure 8 , Figure 12 and Figure 13 The movable protrusion 12 also includes a pressing part 124, which is connected to the second protrusion 122. When the lens is docked with the camera body 2 and rotated for installation, the pressing part 124 of the movable protrusion 12 can abut against and press against the camera body 2, so that the movable protrusion 12 is subjected to the force of the camera body 2, thereby pushing the movable protrusion 12 to swing along a predetermined trajectory and engage with the camera mount 21.

[0081] In specific applications, under the combined action of the squeezing part 124 and the camera body 2, the first protrusion 121 of the movable protrusion 12 swings away from the optical axis around the rotating part 123, and the second protrusion 122 swings towards the optical axis.

[0082] Specifically, as one of the optional implementation methods of this application, please refer to Figure 8 and Figure 12 In its initial state, the pressing part 124 protrudes from the outer edge of the mount body 11. With this design, when the lens is mounted on the camera body 2 and rotated, the pressing part 124 exposed on the outer edge of the mount body 11 can immediately abut against the camera claw 211 of the camera body 2, so that the movable protrusion 12 is pushed at the first moment of the lens rotation, causing the movable protrusion 12 to engage with the camera claw 211.

[0083] As one of the optional implementation methods of this application, please refer to Figure 8 , Figure 12 and Figure 13 The pressing part 124 is connected to the side of the second protrusion 122 that is away from the camera body 2. That is, when the lens is docked with the camera body 2, the pressing part 124 will be closer to the lens than the second protrusion 122, while the second protrusion 122 is closer to the camera body 2. Thus, when the lens mount 1 docks with the camera mount 21, the camera claw 211 will be basically on the same plane as the pressing part 124, which is conducive to the contact between the camera claw 211 and the pressing part 124.

[0084] As one of the optional implementation methods of this application, please refer to Figure 13 The movable protrusion 12 has a limiting protrusion 125. In the initial state, the limiting protrusion 125 can abut against the bayonet body 11 to limit the range of motion of the movable protrusion 12, making the movement of the movable protrusion 12 more reliable.

[0085] Specifically, the limiting protrusion 125 can be connected to the first protrusion 121, and the limiting protrusion 125 can be located closer to the lens than the first protrusion 121 (that is, the limiting protrusion 125 is farther away from the camera body 2 than the first protrusion 121, and the limiting protrusion 125 and the squeezing part 124 can be located on the same plane). When the first protrusion 121 of the movable protrusion 12 swings a certain distance toward the optical axis, the limiting protrusion 125 abuts against the bayonet body 11, limiting the first protrusion 121 from getting too close to the optical axis and improving the reliability of the movable protrusion 12.

[0086] Specifically, as one of the optional embodiments of this application, the movable protrusion 12 can be an integrally formed part, and the first protrusion 121 and the second protrusion 122 form the main body 111 of the movable protrusion 12 (that is, the part that engages with the camera claw 211). The first protrusion 121 and the second protrusion 122 have bottom surfaces and top surfaces that are arranged opposite to each other. The limiting protrusion 125 and the pressing part 124 are located on the bottom surface. The pressing part 124 can be a cylindrical structure so that the pressing part 124 abuts against the camera claw 211 to make it smoother and improve the feel of lens rotation.

[0087] For more specific details, please refer to Figure 12 and Figure 13The rotating part 123 can be a cylindrical structure, located at one end closer to the second protrusion 122 and the pressing part 124, making the structure of the rotating part 123 more compact. The rotating part 123 has a through hole in the middle. The rotating part 123 can be rotatably connected to the bayonet body 11 by fastener 126. The rotating part 123 is located on the side closer to the optical axis of the first protrusion 121 and the second protrusion 122, so that after the movable protrusion 12 is assembled onto the bayonet body 11, the rotating part 123 can be located inside the bayonet body 11, preventing it from affecting the docking of the lens and the camera body 2.

[0088] As one of the optional implementation methods of this application, please refer to Figure 4 and Figure 5 The angle β formed by the lines connecting the two ends of the fixed protrusion 114 in the length direction to the optical axis is the same as the angles (α1 and α2) formed by the lines connecting the two ends of the movable protrusion 12 in the length direction to the optical axis.

[0089] It should be noted that in this embodiment, the angle β of the fixed protrusion 114 is the same as the angle (α1 and α2) of the movable protrusion 12. This means that the angle β of the fixed protrusion 114 is the same as at least one of the angle α1 of the movable protrusion 12 in the initial state or the angle α2 after swinging (i.e., the triggered state after being triggered by the camera body 2), that is, β=α1 and / or β=α2.

[0090] As one of the optional implementation methods of this application, please refer to Figure 4 and Figure 5 The angle α1 formed by the lines connecting the two ends of the movable protrusion 12 in the length direction with the optical axis in the initial state is the same as the angle α2 formed by the lines connecting the two ends of the movable protrusion 12 in the length direction with the optical axis after swinging.

[0091] As one of the optional implementation methods of this application, please refer to Figure 4 and Figure 5 The angle β formed by the lines connecting the two ends of the fixed protrusion 114 in the length direction to the optical axis is greater than or equal to 42°, and the angle (α1 and α2) formed by the lines connecting the two ends of the movable protrusion 12 in the length direction to the optical axis is greater than or equal to 42°.

[0092] For example, the angle α formed by the lines connecting the two ends of the active protrusion 12 along its length to the optical axis is equal to 43°. Of course, in other embodiments, this angle (α1 and α2) can also be 42°, 44°, 45° or non-integer angles, such as 42.5°, 43.5°, 44.5°, 45.5°, etc.

[0093] For example, the angle β formed by the lines connecting the two ends of the fixed protrusion 114 in the length direction to the optical axis is equal to 43°. Of course, in other embodiments, this angle β can also be 42°, 44°, 45° or a non-integer angle, such as 42.5°, 43.5°, 44.5°, 45.5°, etc.

[0094] In practical applications, the fixed protrusion 114 and the movable protrusion 12 of the bayonet 1 can be adapted to the actual camera bayonet 21. For example, when the camera bayonet 21 is equipped with four camera claws 211, the fixed protrusion 114 and the movable protrusion 12 of the bayonet 1 can be set in total to four, of which three fixed protrusions 114 and one movable protrusion 12 can be set, or two fixed protrusions 114 and two movable protrusions 12 can be set, and the movable protrusions 12 and the fixed protrusions 114 can be set alternately.

[0095] As one of the optional implementation methods of this application, please refer to Figures 1 to 3 The bayonet 1 also includes a reset component 13, which is connected to the bayonet body 11 and the movable protrusion 12. When the lens is reversed and removed from the camera body 2, the reset component 13 can apply force to the movable protrusion 12 under the action of the reset component 13, so that the movable protrusion 12 returns to its initial state.

[0096] Specifically, as one of the optional implementation methods of this application, please refer to Figure 4 and Figure 5 One end of the reset component 13 abuts against the movable protrusion 12. When the lens is docked with the camera body 2 and rotated for installation, the movable protrusion 12 can squeeze the reset component 13 so that the reset component 13 enters the energy storage state.

[0097] Specifically, as one of the optional implementation methods of this application, please refer to Figures 1 to 4The reset component 13 can be an elastic sheet, which can be attached to the bayonet body 11. One end of the elastic sheet abuts against the side of the second protrusion 122 near the optical axis. When the lens is docked with and rotated on the camera body 2, the second protrusion 122 of the movable protrusion 12 swings towards the optical axis. At this time, the second protrusion 122 pushes the end of the elastic sheet, so that the elastic sheet is in a state of force storage. When the lens is removed, the camera jaw 211 no longer abuts against the pressing part 124 of the movable protrusion 12. At this time, under the push of the elastic sheet, the movable protrusion 12 can swing around the rotating part 123, so that the second protrusion 122 swings away from the optical axis and the first protrusion 121 swings towards the optical axis, thereby realizing the reset of the movable protrusion 12. Through the design of the elastic sheet, the bayonet 1 can have a smaller volume and a simpler structure while ensuring the reliable reset of the movable protrusion 12, thus ensuring the reset reliability of the reset component 13.

[0098] In specific applications, the elastic sheet can be attached to the side of the bayonet body 11 near the optical axis and locked onto the bayonet body 11 by the reset fastener 131. At this time, the end of the elastic sheet can abut against the side of the second protrusion 122 near the optical axis. Of course, in other embodiments, the elastic sheet can also be attached to the side of the bayonet body 11 away from the optical axis. In this case, the end of the elastic sheet can abut against the side of the first protrusion 121 away from the optical axis, thus achieving a similar effect.

[0099] Specifically, as one of the optional embodiments of this application, the reset component 13 can also be a torsion spring, which can also be integrated into the through hole of the rotating part 123. When the movable protrusion 12 swings around the rotating part 123, the torsion spring enters the energy storage state and releases the force when the lens is disassembled, so that the movable protrusion 12 is reset.

[0100] Specifically, as one of the optional implementation methods of this embodiment, please refer to Figures 1 to 3 The bayonet body 11 includes a main body 111, a bayonet part 112, and a mounting part 113. The bayonet part 112 is connected to the main body 111, and the mounting part 113 is connected to the bayonet part 112. The main body 111 can be used to connect with the lens body 3, thereby mounting the bayonet body 11 on the lens body 3. The mounting part 113 and the bayonet part 112 are used to accommodate the mounting reset component 13 and the movable protrusion 12, and the bayonet part 112 is used to mate with the camera bayonet 21.

[0101] More specifically, the main body 111 and the mounting part 113 have an annular structure, the bayonet part 112 has a cylindrical structure, the main body 111 is connected to the outside of the bayonet part 112 and close to the end face of the bayonet part 112, and the mounting part 113 is connected to the inside of the bayonet part 112. The main body 111, the mounting part 113 and the bayonet part 112 can be an integrally formed structure.

[0102] As one of the optional implementation methods in this embodiment, please refer to Figure 14 The bayonet 1 also includes a decorative ring 14, which is connected to the bayonet portion 112 of the bayonet body 11, covering the reset component 13. The decorative ring 14 has a notch through which the lens cable contact 32 can be exposed for electrical connection with the camera body 2.

[0103] Specifically, as one of the optional implementation methods of this embodiment, please refer to Figure 4 The main body 111 of the bayonet body 11 is provided with a positioning groove 116. The positioning groove 116 is located on the side facing the camera body 2. When the lens with the bayonet 1 of this embodiment is installed on the camera body 2, after the lens is installed in place, the positioning pin of the camera body 2 (not shown in the figure) can extend into the positioning groove 116 to prevent the lens from accidentally rotating out.

[0104] Specifically, as one of the optional implementation methods of this embodiment, please refer to Figure 3 The outer side of the bayonet portion 112 of the bayonet body 11 is provided with an anti-rotation screw 117. The anti-rotation screw 117 can play a limiting role during the lens installation and rotation process. By cooperating with the camera body 2, it can prevent the lens from rotating excessively and ensure the reliability of the lens.

[0105] The bayonet 1 provided in this embodiment allows the movable protrusion 12 and the fixed protrusion 114 to extend into the corresponding notches of the camera body 2 when the lens is attached to the camera body 2. When the movable protrusion 12 is screwed onto the camera body 2, a portion of the movable protrusion 12 swings around its center position and engages with the camera bayonet 21 of the camera body 2, ensuring the lens is securely mounted on the camera body 2. Thus, during assembly, the movable protrusion 12 is in its initial state, reducing collisions with the camera bayonet 21. After assembly, triggered by the screwing of the camera body 2, a portion of the movable protrusion 12 moves away from the optical axis and engages with the camera body 2. This ensures reliable assembly while reducing collisions and the feeling of jamming during assembly, improving the user experience.

[0106] This application embodiment also provides an adapter ring, including an adapter ring body and a bayonet 1 as described above, the bayonet 1 being connected to the adapter ring body.

[0107] The adapter ring provided in this application embodiment can be used between a lens and a camera body 2 to connect lens mounts 1 of different standards to the camera body 2. Utilizing the movable protrusion 12 of the mount 1, during assembly, the movable protrusion 12 is in its initial state, which can reduce collisions with the camera mount 21. After assembly, under the triggering of the rotation of the camera body 2, the movable protrusion 12 moves away from the optical axis and engages with the camera body 2. While ensuring reliable assembly, it reduces collisions and the feeling of jamming during assembly, thereby improving the user experience.

[0108] This application also provides a lens, please refer to... Figure 14 The lens includes a lens body 3 and a mount 1 as described above, with the mount 1 connected to the lens body 3.

[0109] Specifically, the lens body 3 may include a frame, a main board, a ribbon cable, a lens group, and an outer part 31. The outer part 31 is fitted outside the frame, and there is a certain space between the frame and the outer part 31. The main board and the ribbon cable are installed in this space. The frame is roughly cylindrical in shape, and the lens group is located in the cavity inside the frame. The bayonet 1 is connected to the end of the frame.

[0110] The lens provided in this application embodiment utilizes the movable protrusion 12 of the bayonet 1. During assembly, the movable protrusion 12 is in its initial state, which can reduce collisions with the camera bayonet 21. After assembly, under the triggering of the rotation of the camera body 2, the movable protrusion 12 moves away from the optical axis and engages with the camera body 2. While ensuring reliable assembly, it reduces collisions and the feeling of jamming during assembly, thereby improving the user experience.

[0111] This application also provides an image picking device, please refer to... Figure 15 and Figure 16 The image acquisition device includes a camera body 2 having a camera mount 21 and a lens as described above, wherein the lens is connected to the camera mount 21 of the camera body 2 via a mount 1.

[0112] The image pickup device provided in this application embodiment can reduce the collision between the lens and the camera body 2, improve the smoothness of assembly, and enhance the user experience.

[0113] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A bayonet for attaching a lens to a camera body, characterized in that, The checkpoint includes: Main body of the checkpoint; Mounting components are connected to the bayonet body and used to connect the bayonet body to the lens; A fixed protrusion is connected to the bayonet body; The movable protrusion is connected to the bayonet body. When the movable protrusion is screwed onto the camera body, it swings away from the optical axis from the center position and engages with the camera body.

2. The bayonet as described in claim 1, characterized in that, The movable protrusion has a first protrusion and a second protrusion. In the initial state, the first protrusion is closer to the optical axis than the second protrusion. When the movable protrusion is screwed onto the camera body, the first protrusion moves away from the optical axis and protrudes from the outer edge of the mount body.

3. The bayonet as described in claim 2, characterized in that, After the movable protrusion is screwed onto the camera body, the first protrusion moves away from the optical axis and becomes flush with the second protrusion.

4. The bayonet as described in claim 2, characterized in that, The first protrusion and / or the second protrusion protrude beyond the outer edge of the bayonet body in the initial state.

5. The bayonet as described in claim 4, characterized in that, The first protrusion and / or the second protrusion are closer to the optical axis than the fixed protrusion in the initial state.

6. The bayonet as described in claim 2, characterized in that, After the active protrusion is released from the trigger state of the bayonet body, the first protrusion moves toward the direction of the optical axis.

7. The bayonet as described in claim 2, characterized in that, The dimension of the first protrusion in the length direction is equal to the dimension of the second protrusion in the length direction.

8. The bayonet as described in claim 2, characterized in that, The movable protrusion also has a rotating part connected to the first protrusion and the second protrusion. The rotating part is rotatably connected to the bayonet body so that the first protrusion and the second protrusion can swing around the rotating part.

9. The bayonet as described in claim 8, characterized in that, The rotating part is located at the middle position between the first protrusion and the second protrusion.

10. The bayonet as described in claim 9, characterized in that, When the movable protrusion is screwed onto the camera body, the first protrusion swings away from the optical axis around the rotating part, and the second protrusion swings towards the optical axis around the rotating part.

11. The bayonet as described in claim 8, characterized in that, The movable protrusion further includes a squeezing part for abutting against the camera body and pushing the movable protrusion to move away from the optical axis, the squeezing part being connected to the second protrusion.

12. The bayonet as described in claim 11, characterized in that, The compression portion protrudes from the outer edge of the bayonet body in the initial state.

13. The bayonet as described in claim 12, characterized in that, The compression part is connected to the side of the second protrusion opposite to the camera body.

14. The bayonet as described in any one of claims 1 to 13, characterized in that, The bayonet also includes a reset component connected to the bayonet body and used to reset the movable protrusion, the reset component being connected to the movable protrusion.

15. The bayonet as described in claim 14, characterized in that, One end of the reset component abuts against the movable protrusion, and when the movable protrusion is screwed onto the camera body, it squeezes the reset component to cause the reset component to enter an energy storage state.

16. The bayonet as described in claim 15, characterized in that, The reset component is an elastic sheet, which is attached to the bayonet body. One end of the elastic sheet abuts against the side of the first protrusion of the movable protrusion away from the optical axis, or abuts against the side of the second protrusion close to the optical axis.

17. The bayonet as described in any one of claims 1 to 13, characterized in that, The angle formed by the lines connecting the two ends of the fixed protrusion in the length direction to the optical axis is the same as the angle formed by the lines connecting the two ends of the movable protrusion in the length direction to the optical axis; and / or, the angle formed by the lines connecting the two ends of the movable protrusion in the length direction to the optical axis in the initial state is the same as the angle formed by the lines connecting the two ends of the movable protrusion in the length direction to the optical axis after swinging.

18. The bayonet as described in any one of claims 1 to 13, characterized in that, The angle formed by the lines connecting the two ends of the fixed protrusion along its length to the optical axis is greater than or equal to 42°, and the angle formed by the lines connecting the two ends of the movable protrusion along its length to the optical axis is greater than or equal to 42°.

19. The bayonet as described in any one of claims 1 to 13, characterized in that, The movable protrusion has a limiting protrusion for abutting against the bayonet body to limit the range of movement of the movable protrusion.

20. An adapter ring, characterized in that, It includes an adapter ring body and a bayonet as described in any one of claims 1 to 19, the bayonet being connected to the adapter ring body.

21. A lens, characterized in that, It includes a lens body and a bayonet mount as described in any one of claims 1 to 19, the bayonet mount being connected to the lens body.

22. An image acquisition device, characterized in that, It includes a camera body with a camera mount and a lens as described in claim 21, wherein the lens is connected to the camera mount of the camera body via the mount.

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