Lens assembly and shooting device

Abstract

The utility model provides a lens assembly and a shooting device, and belongs to the field of shooting devices. The lens assembly comprises a lens and a lens locking piece, and the lens locking piece is cylindrical, coaxially sleeves a lens barrel of the lens and is in threaded connection with the lens barrel; one end of the lens locking piece is provided with a connecting structure, and the connecting structure is used for being connected with a camera body of a shooting device; the other end of the lens locking member is provided with a locking structure, and the locking structure is used for generating deformation to lock the lens barrel. And the lens locking piece is connected with the camera body of the shooting device through the connecting structure. The lens locking piece is coaxially sleeved outside the lens and is in threaded connection with the lens barrel of the lens, so that the lens barrel can be screwed, the lens moves along the axis direction of the lens locking piece, and the focal length is changed. The locking structure is arranged at the other end of the lens locking piece, so that after the focal length is adjusted, the locking structure can be used for generating deformation to lock the lens barrel, and the focal length of the lens is prevented from changing in the shooting process.

Description

Technical Field

[0001] This application relates to the field of shooting devices, and in particular to a lens assembly and a shooting device. Background Technology

[0002] The lens is an important part of various shooting devices. Before shooting, the lens usually needs to be adjusted to adjust the focal length so that it matches the specific shooting scene.

[0003] Lens focusing is typically done by rotating the lens barrel. After adjusting to the desired focal length, the lens barrel should be kept from rotating further. For some shooting devices that require long-term continuous shooting, the lens barrel may rotate at a certain angle during the long shooting mission after focusing. Although the angle of rotation may be small, it will still cause a change in focal length, thus affecting the shooting effect. Utility Model Content

[0004] This application provides a lens assembly and an imaging device that prevents the lens barrel from rotating and thus avoids changes in focal length after the lens has been focused. The technical solution is as follows:

[0005] In a first aspect, embodiments of this application provide a lens assembly, the lens assembly including a lens and a lens locking member, the lens locking member being cylindrical, coaxially sleeved outside the lens barrel, and threadedly connected to the lens barrel;

[0006] One end of the lens locking component is provided with a connecting structure, which is used to connect to the body of the shooting device;

[0007] The other end of the lens locking component is provided with a locking structure, which is used to generate deformation to lock the lens barrel.

[0008] In some examples, the locking structure includes at least one pair of arms distributed circumferentially along the lens locking member, with a first end of the arms connected to the lens locking member and a second end of the arms extending opposite to each other. The second ends of the arms are detachably connected to allow the arms to deform.

[0009] In some examples, the locking structure includes two pairs of the clamping arms, which are arranged symmetrically about the axis of the lens locking member.

[0010] In some examples, the second end of the arm has a bend that bends outward toward the lens locking member, and the bends of the same pair of arms are connected by bolts.

[0011] In some examples, the end of the lens locking member away from the connecting structure has at least one notch, and the same pair of arm holders are located in the same notch and are respectively connected to the two sides opposite to the notch.

[0012] In some examples, along the circumference of the lens locking member, the distance between the two opposite sides of the notch is 1 / 4 to 1 / 3 of the circumference of the lens locking member.

[0013] In some examples, the connection structure is plate-shaped and extends radially outward along the lens locking member.

[0014] In some examples, the connecting structure has a connecting hole and a positioning protrusion on the side of the connecting structure away from the locking structure.

[0015] In some examples, the outer wall of the lens barrel has an outer flange located inside the lens locking member and threadedly connected to the lens locking member.

[0016] Secondly, embodiments of this application also provide a shooting device, which includes a camera body and a lens assembly as described in the first aspect, wherein a lens locking member is fixedly connected to the camera body, and the lens is rotatably engaged with the camera body.

[0017] The beneficial effects of the technical solutions provided in this application include at least the following:

[0018] By configuring a lens and a lens locking mechanism, the lens locking mechanism is cylindrical, with a connecting structure at one end to connect it to the camera body of the shooting device. The lens locking mechanism is coaxially fitted onto the lens and threaded into the lens barrel, allowing the lens barrel to be rotated, moving the lens along the axis of the lens locking mechanism to change the focal length. A locking mechanism at the other end of the lens locking mechanism allows the lens barrel to be locked in place after focus adjustment, preventing changes in the lens's focal length during shooting. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the structure of a lens assembly provided in an embodiment of this application;

[0021] Figure 2This is a cross-sectional schematic diagram of a lens assembly provided in an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the structure of a lens locking component provided in an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the structure of a lens locking component provided in an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the structure of a shooting device provided in an embodiment of this application.

[0025] Icon labels:

[0026] 10-Lens; 100-Lens assembly; 11-Lens barrel; 111-Outer flange; 12-Lens element;

[0027] 20-Lens locking component; 20a-Notch; 200-Body; 21-Connecting structure; 21a-Connecting hole; 211-Positioning protrusion; 22-Locking structure; 221-Arm; 2211-Bending part. Detailed Implementation

[0028] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0029] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0030] 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.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0032] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" means two or more.

[0034] Figure 1 This is a schematic diagram of the structure of a lens assembly provided in an embodiment of this application. Figure 1 As shown, the lens assembly includes a lens 10 and a lens locking member 20.

[0035] Figure 2 This is a cross-sectional schematic diagram of a lens assembly provided in an embodiment of this application, as shown below. Figure 2 As shown, the lens 10 includes a lens barrel 11 and a plurality of lens elements 12 located within the lens barrel 11. The lens locking member 20 is cylindrical and coaxially sleeved on the outside of the lens barrel 11 of the lens 10. The lens locking member 20 is threadedly connected to the lens barrel 11.

[0036] One end of the lens locking member 20 is provided with a connecting structure 21, which is used to connect to the body 200 of the shooting device. The other end of the lens locking member 20 is provided with a locking structure 22, which is used to deform to lock the lens barrel 11.

[0037] By configuring a lens 10 and a lens locking member 20, the lens locking member 20 is cylindrical, with a connecting structure 21 at one end, allowing the lens locking member 20 to be connected to the body of the shooting device. The lens locking member 20 is coaxially fitted around the lens 10 and threadedly connected to the lens barrel 11 of the lens 10, allowing the lens barrel 11 to be rotated, thus moving the lens 10 along the axis of the lens locking member 20 and changing the focal length. A locking structure 22 is provided at the other end of the lens locking member 20, so that after the focal length adjustment is completed, the locking structure 22 deforms to lock the lens barrel 11, preventing the focal length of the lens 10 from changing during shooting.

[0038] like Figure 2 As shown, the outer wall of the lens barrel 11 has an outer flange 111, which is located inside the lens locking member 20 and is threadedly connected to the lens locking member 20.

[0039] An outer flange 111 is provided on the outer wall of the lens barrel 11, and an external thread is provided on the outer flange 111 to be threadedly connected to the lens locking member 20. This allows for a larger gap between the surface of the lens barrel 11 on both sides of the outer flange 111 and the inner wall of the lens locking member 20, which can prevent the internal thread of the inner wall of the lens locking member 20 from contacting the lens barrel 11 and scratching the lens barrel 11.

[0040] During the process of screwing the lens barrel 11, the lens 10 moves relative to the lens locking member 20 along its own axial direction. During the movement, the outer flange 111 remains connected to the lens locking member 20, that is, the range of movement of the lens 10 will not cause the external thread of the outer flange 111 to completely separate from the internal thread of the lens locking member 20.

[0041] Figure 3 This is a schematic diagram of the structure of a lens locking component provided in an embodiment of this application, as shown below. Figure 3 As shown, the locking structure 22 includes at least one pair of retaining arms 221. The same pair of retaining arms 221 are distributed circumferentially along the lens locking member 20. The first end of the retaining arm 221 is connected to the lens locking member 20, and the second end of the same pair of retaining arms 221 extends relative to each other. The second ends of the same pair of retaining arms 221 are detachably connected to allow the retaining arm 221 to deform.

[0042] When the focal length of lens 10 needs to be adjusted, the connection between the second ends of the same pair of retaining arms 221 can be disconnected. After the focal length of lens 10 is adjusted, the second ends of the same pair of retaining arms 221 can be connected. During the connection of the second ends of retaining arms 221, retaining arms 221 will deform, locking the lens barrel 11 and preventing the lens barrel 11 from rotating relative to the lens locking member 20. The end of the lens locking member 20 connected to the retaining arm 221 may also deform inward to a certain extent, gripping the lens barrel 11.

[0043] For example, the arm 221 can be a metal part so that the arm 221 can have good elasticity and is not easy to break.

[0044] In some other possible implementations, the arm 221 can also be a plastic part, which is lightweight and easy to process.

[0045] For example, the lens locking member 20, the connecting structure 21 and the locking structure 22 can be a single unit, for example, they can be integrally injection molded using an injection molding process.

[0046] As an example, the locking structure 22 may include two pairs of arms 221, which are arranged symmetrically about the axis of the lens locking member 20.

[0047] The two pairs of centrally symmetrically arranged clamping arms 221 can make the force on the lens tube 11 more uniform and symmetrical when locking the lens tube 11, thereby making the lens tube 11 more stably locked and preventing the lens tube 11 from loosening.

[0048] In some other possible implementations, the locking structure 22 may also include three or more pairs of clamping arms 221, which may be arranged at equal angular intervals around the axis of the lens locking member 20 to provide a more symmetrical and uniform force to lock the lens 10.

[0049] like Figure 3 As shown, the second end of the arm 221 has a bent portion 2211, which bends outward toward the lens locking member 20. The bent portions 2211 of the same pair of arms 221 are connected by bolts.

[0050] The outwardly bent portion 2211 at the second end of the arm 221 facilitates the installation of bolts. When locking the lens 10, tightening the bolts allows the bent portions 2211 of the same pair of arms 221 to fit together. When it is necessary to loosen the lens 10 for focusing, loosening the bolts allows the bent portions 2211 of the arms 221 to separate under their own elasticity.

[0051] For example, the bend 2211 may have a through hole into which a bolt may be inserted.

[0052] like Figure 3 As shown, the end of the lens locking member 20 away from the connecting structure 21 has at least one notch 20a. The same pair of retaining arms 221 are located in the same notch 20a, and the same pair of retaining arms 221 are respectively connected to the two opposite sides of the notch 20a.

[0053] As an example, in this example, the end of the lens locking member 20 away from the connecting structure 21 has two notches 20a, and two pairs of retaining arms 221 are respectively located in the two notches 20a. The notches 20a have two opposite sides, the first end of one retaining arm 221 in the same pair is connected to one side of the notch 20a, and the first end of the other retaining arm 221 in the same pair is connected to the other side of the notch 20a.

[0054] A notch 20a is provided, and the clamping arm 221 is connected to the side of the notch 20a. This facilitates the arrangement of the clamping arm 221, allowing it to extend better along the circumference of the lens locking member 20 without bending. Furthermore, during the process of locking the lens 10 using the clamping arm 221, the clamping arm 221 can also pull the side of the notch 20a, causing the portion between the two notches 20a to bend and deform inwards towards the lens locking member 20, further tightening the lens 10.

[0055] In some examples, along the circumference of the lens locking member 20, the distance between the two opposite sides of the notch 20a is 1 / 4 to 1 / 3 of the circumference of the lens locking member 20.

[0056] The lens locking member 20 can be cylindrical, and the distance between the two sides of the notch 20a can be the arc length of an arc from one side of the notch 20a to the other side of the notch 20a along the circumferential direction of the lens locking member 20, with the center of the arc located on the axis of the lens locking member 20.

[0057] In this example, the lens locking member 20 has two notches 20a. The distance between the two sides of the notches 20a limits the length that the retaining arm 221 can be set to, and the length of the retaining arm 221 affects the deformation range that the retaining arm 221 can produce. Setting the distance between the two sides of the notches 20a to 1 / 4 to 1 / 3 of the circumference of the lens locking member 20 allows the retaining arm 221 to have a suitable length to produce sufficient deformation to hold the lens 10, while avoiding the notches 20a being too large, which would result in the spacing between adjacent notches 20a being too small and causing insufficient strength of the lens locking member 20.

[0058] like Figure 3 As shown, the connecting structure 21 can be plate-shaped and can extend outward along the radial direction of the lens locking member 20.

[0059] The plate-shaped connecting structure 21 can be easily connected to the camera body 200 of the shooting device. For example, when connected to the camera body 200, it can fit against the surface of the camera body 200 to keep the lens locking member 20 stable and prevent it from loosening.

[0060] For example, the connection structure 21 can be polygonal or circular. For instance, the connection structure 21 can be rectangular.

[0061] like Figure 3 As shown, the connection structure 21 has a connection hole 21a.

[0062] The connection hole 21a can be used to connect to the body 200 of the shooting device, for example, it can be connected to the body 200 of the shooting device by bolts.

[0063] Figure 4 This is a schematic diagram of the structure of a lens locking component provided in an embodiment of this application, as shown below. Figure 4 As shown, the side of the connecting structure 21 away from the locking structure 22 may have a positioning protrusion 211.

[0064] The positioning protrusion 211 can position the connecting structure 21 during the process of connecting the connecting structure 21 to the body 200 of the shooting device. For example, the body 200 of the shooting device may have a positioning hole. During the process of connecting the connecting structure 21 to the body 200 of the shooting device, the positioning protrusion 211 can be aligned with the positioning hole and inserted into the positioning hole to position the connecting structure 21. Then, a bolt can be inserted into the connecting hole 21a to connect the connecting structure 21 to the body 200 of the shooting device.

[0065] For example, the connection structure 21 may have four connection holes 21a and two positioning protrusions 211. The four connection holes 21a may be arranged at equal angular intervals along the circumference of the lens locking member 20, and the two positioning protrusions 211 may be arranged symmetrically about the axis of the lens locking member 20.

[0066] Figure 5 This is a schematic diagram of the structure of a shooting device provided in an embodiment of this application, such as... Figure 5 As shown, the shooting device includes a lens assembly 100 and a body 200. The lens assembly 100 can be... Figures 1-4 Any of the lens components 100 shown.

[0067] Figure 5 The structure of the body 200 shown is for illustrative purposes only. The shooting device can be any device with shooting function and a lens, such as a camera, video camera, monitor, or projector.

[0068] By employing the aforementioned lens assembly 100, during the assembly of the shooting device, one end of the lens locking member 20 is provided with a connecting structure 21, which connects the lens locking member 20 to the body 200 of the shooting device. The lens locking member 20 is coaxially fitted onto the lens 10 and threadedly connected to the lens barrel 11 of the lens 10, allowing the lens barrel 11 to be rotated, causing the lens 10 to move along the axis of the lens locking member 20 and change the focal length. By providing a locking structure 22 at the other end of the lens locking member 20, after the focal length adjustment is completed, the locking structure 22 can be deformed to lock the lens barrel 11, preventing the focal length of the lens 10 from changing during shooting.

[0069] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A lens assembly, characterized in that, Includes a lens (10) and a lens locking member (20), the lens locking member (20) is cylindrical, coaxially sleeved outside the lens barrel (11) of the lens (10), and threadedly connected to the lens barrel (11); One end of the lens locking member (20) is provided with a connecting structure (21), which is used to connect to the body (200) of the shooting device; The other end of the lens locking member (20) is provided with a locking structure (22), which is used to generate deformation to lock the lens barrel (11).

2. The lens assembly according to claim 1, characterized in that, The locking structure (22) includes at least one pair of arm brackets (221), the same pair of arm brackets (221) are distributed circumferentially along the lens locking member (20), the first end of the arm bracket (221) is connected to the lens locking member (20), the second end of the same pair of arm brackets (221) extends relative to each other, and the second end of the same pair of arm brackets (221) is detachably connected to allow the arm bracket (221) to deform.

3. The lens assembly according to claim 2, characterized in that, The locking structure (22) includes two pairs of the arm arms (221), which are arranged symmetrically about the axis of the lens locking member (20).

4. The lens assembly according to claim 2, characterized in that, The second end of the arm (221) has a bent portion (2211) that bends outward toward the lens locking member (20), and the bent portions (2211) of the same pair of arms (221) are connected by bolts.

5. The lens assembly according to claim 2, characterized in that, The lens locking member (20) has at least one notch (20a) at one end away from the connecting structure (21), and the same pair of arm brackets (221) are located in the same notch (20a) and are respectively connected to the two sides opposite to the notch (20a).

6. The lens assembly according to claim 5, characterized in that, Along the circumference of the lens locking member (20), the distance between the two opposite sides of the notch (20a) is 1 / 4 to 1 / 3 of the circumference of the lens locking member (20).

7. The lens assembly according to any one of claims 1 to 6, characterized in that, The connecting structure (21) is plate-shaped and extends outward along the radial direction of the lens locking member (20).

8. The lens assembly according to claim 7, characterized in that, The connecting structure (21) has a connecting hole (21a), and the side of the connecting structure (21) away from the locking structure (22) has a positioning protrusion (211).

9. The lens assembly according to any one of claims 1 to 6, characterized in that, The outer wall of the lens barrel (11) has an outer flange (111), which is located inside the lens locking member (20) and is threadedly connected to the lens locking member (20).

10. A shooting device, characterized in that, It includes a body (200) and a lens assembly (100) as described in any one of claims 1 to 9, wherein a lens locking member (20) is fixedly connected to the body (200), and the lens (10) is rotatably engaged with the body (200).

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