A lens and an electronic device

Abstract

The application relates to a lens and an electronic device, the lens comprising: a guide rod; a lens barrel, the lens barrel being provided with an axial hole, at least part of the guide rod penetrating through the axial hole, the lens barrel being capable of sliding along the guide rod; and a lens piece, the lens piece being mounted on the lens barrel; wherein at least one of a side wall of the axial hole and the guide rod is provided with a protruding part, the guide rod abutting against the protruding part during movement of the lens barrel relative to the guide rod. In the application, since at least one of the side wall of the axial hole and the guide rod is provided with the protruding part, the guide rod and the side wall of the axial hole are in contact through the protruding part, the contact area between the guide rod and the side wall of the axial hole can be reduced due to the small area of the protruding part, the number of movement tracks of the guide rod and the lens barrel during relative movement of the guide rod and the lens barrel is reduced, the risk of imaging being unclear due to deviation during movement of the lens barrel is reduced, and the stability of lens imaging is improved. The electronic device comprises a shell and a lens mounted on the shell, and the lens is the lens described above.

Description

Technical Field

[0001] This application relates to the field of shooting equipment technology, and more particularly to a lens and an electronic device. Background Technology

[0002] With the rapid development of online communities, modern people mostly use electronic devices (such as cameras or mobile phones) to record their daily lives. To meet market demand, electronic devices have lenses with focusing and zoom functions. This means that electronic devices include grouped lenses, which change the distance between different lens groups by moving them to form optical systems with different focal lengths, thus achieving continuous zoom. Typically, a lens consists of a lens barrel and a guide rod. Because the contact between the lens barrel and the guide rod results in multiple possible movement trajectories for the lens barrel, problems such as rotation and skew can easily occur when the lens barrel moves on the guide rod, leading to optical path misalignment and reduced image sharpness. Summary of the Invention

[0003] This application provides a lens and an electronic device that can improve the clarity of lens images.

[0004] The first aspect of this application provides a lens, the lens comprising:

[0005] Guide rod;

[0006] The microscope tube has a shaft hole through which at least a portion of the guide rod passes, and the microscope tube can slide along the guide rod;

[0007] Lens, the lens is mounted on the lens barrel;

[0008] The shaft hole has a protrusion on its side wall and the guide rod. During the movement of the lens barrel relative to the guide rod, the guide rod abuts against the protrusion.

[0009] In this application, since at least one of the sidewall of the shaft hole and the guide rod is provided with a protrusion, the guide rod and the sidewall of the shaft hole are in contact through the protrusion. Since the area of ​​the protrusion is small, the contact area between the guide rod and the sidewall of the shaft hole can be reduced, thereby reducing the number of motion trajectories of the guide rod and the lens barrel when they move relative to each other, reducing the risk of blurry imaging caused by displacement during lens barrel movement, and thus improving the stability of lens imaging.

[0010] In one possible design, the guide rod has a gap with the sidewall of the shaft hole.

[0011] In this application, the guide rod has a gap with the side wall of the shaft hole, so that the guide rod and the lens barrel only contact each other through the protrusion, thereby further reducing the number of trajectories when the guide rod and the lens barrel move relative to each other, and thus further improving the stability of lens imaging. At the same time, the gap between the guide rod and the side wall of the shaft hole can also reduce the friction between the shaft hole and the guide rod, thereby reducing the wear between the guide rod and the lens barrel.

[0012] In one possible design, the protrusion is a dot or a boss.

[0013] In this application, the protrusion is a protrusion or a boss. The protrusion or boss has a small outline area, which makes the contact area between the guide rod and the lens barrel smaller. This reduces the number of trajectories when the guide rod and the lens barrel move relative to each other, reduces the risk of unclear imaging caused by deviation during lens barrel movement, and reduces the friction between the protrusion and the shaft hole or guide rod.

[0014] In one possible design, the number of protrusions is at least three, and at least the three protrusions are not collinear.

[0015] In this application, when at least three protrusions are not collinear, the contact points between the guide rod and the protrusions include at least three points, which can form a triangle. Since the triangle has high stability, the trajectory of the relative motion between the lens barrel and the guide rod is unique, thereby greatly reducing the risk of shaking and displacement when the lens barrel moves along the guide rod, and improving the stability of lens imaging.

[0016] In one possible design, there are four protrusions, and the four protrusions form a quadrilateral.

[0017] In this application, three of the four protrusions can form a triangle, and the lens barrel and the guide rod are in contact through the four protrusions. Although the relative motion trajectory between the lens barrel and the guide rod is not unique, the number of trajectories is small. At the same time, it is easier to implement when there are four protrusions, thereby reducing the processing difficulty and production cost.

[0018] In one possible design, the protrusion is disposed on the sidewall of the shaft hole and along the axial direction of the shaft hole, the shaft hole includes a first end and a second end disposed opposite to each other, and the protrusion includes two first protrusions near the first end and two second protrusions near the second end;

[0019] The distance between the first protrusion and the first end is L1, the distance between the second protrusion and the second end is L2, and the distance between the first end and the second end is L3, where L1 / L3 = 0.05 to 0.25 and L2 / L3 = 0.05 to 0.25.

[0020] In this application, L1 / L3 = 0.05~0.25 and L2 / L3 = 0.05~0.25 are set so that the lateral forces of the first protrusion and the second protrusion on the guide rod and the shaft hole are distributed on both sides, reducing the risk of damage caused by excessive local stress on the guide rod and the shaft hole, thereby improving the service life of the lens barrel.

[0021] In one possible design, the two first protrusions contact the outer surface of the guide rod at a first contact point and a second contact point, with the first contact point and the second contact point at a central angle α1 on the guide rod.

[0022] The two second protrusions contact the outer surface of the guide rod at the third and fourth contact points, and the central angle between the third and fourth contact points on the guide rod is α2.

[0023] Where α1≤120°, α2≤120°.

[0024] In this application, α1≤120° and α2≤120° are set so that the distance between the first contact point and the first contact point, and between the third contact point and the fourth contact point, is neither too large nor too small, thereby reducing the risk of the guide rod contacting the side wall of the shaft hole and improving the stability of the fit between the protrusion and the guide rod.

[0025] In one possible design, 65°≤α1≤95°, 65°≤α2≤95°.

[0026] In this application, setting 65°≤α1≤95° and 65°≤α2≤95° can improve the reliability of the fit between the lens barrel and the guide rod, reduce the number of relative motion trajectories between the guide rod and the lens barrel, and improve the working stability of the lens.

[0027] In one possible design, the two first protrusions are symmetrical with respect to the axis of the guide rod, and the two second protrusions are symmetrical with respect to the axis of the guide rod.

[0028] In this application, the first protrusion is symmetrical with respect to the axis of the guide rod, and the two second protrusions are symmetrical with respect to the axis of the guide rod. This makes the two first protrusions and the two second protrusions generate uniform lateral forces on the guide rod and the shaft hole, reducing the risk of the shaft hole deviating from the predetermined sliding track under the action of uneven lateral forces and improving the stability of the lens barrel moving along the guide rod.

[0029] In one possible design, the protrusion is a raised ring.

[0030] In this application, when the guide rod and the lens barrel move relative to each other, they only contact each other through the convex ring, which reduces the number of motion trajectories of the guide rod and the lens barrel when they move relative to each other, thereby reducing the risk of the shaft hole being offset relative to the guide rod, and making the motion trajectory of the lens barrel and the guide rod parallel to the axis of the guide rod, thereby improving the stability of lens imaging.

[0031] In one possible design, the protrusion is disposed on the sidewall of the shaft hole and along the axial direction of the shaft hole, the shaft hole including a first end and a second end disposed opposite to each other, and the protrusion including a first protruding ring near the first end and a second protruding ring near the second end;

[0032] The distance between the first convex ring and the first end is L4, the distance between the second convex ring and the second end is L5, and the distance between the first end and the second end is L3. L4 / L3 = 0.05~0.25 and L5 / L3 = 0.05~0.25.

[0033] In this application, L4 / L3 = 0.05~0.25 and L5 / L3 = 0.05~0.25 are set so that the lateral forces of the first and second convex rings on the guide rod and shaft hole are distributed on both sides, reducing the risk of damage caused by excessive local stress on the guide rod and shaft hole, thereby improving the service life of the lens barrel.

[0034] In one possible design, the lens barrel includes two spaced-apart axial holes, with a protrusion disposed on the sidewall of one of the axial holes.

[0035] In this application, the protrusion is provided on the side wall of a shaft hole, which ensures the stability of the lens barrel sliding trajectory and reduces the risk of lens barrel sliding jamming, thereby increasing the stability and smoothness of lens barrel sliding and improving the working performance of the lens.

[0036] In one possible design, the shaft hole includes a first shaft hole and a second shaft hole, with the protrusion disposed in the first shaft hole;

[0037] The cross-sectional shape of the first shaft hole is hexagonal, and the protrusions are provided on the relatively inclined two side walls of the first shaft hole;

[0038] The cross-sectional shape of the second shaft hole is hexagonal or circular.

[0039] In this application, the hexagonal first shaft hole can exert an inclined force on the guide rod through the protrusion. This force can make the guide rod and the protrusion make close contact, reducing the risk of the first shaft hole wobbling relative to the guide rod during the sliding of the lens barrel along the guide rod, and improving the stability of the lens barrel moving along the guide rod.

[0040] In one possible design, the lens also includes an insert that forms an axial hole and is fixedly connected to the lens barrel.

[0041] In this application, the protrusion is disposed within the insert, and the insert is fixedly connected to the lens barrel. Separating the protrusion from the lens barrel facilitates the processing and replacement of the protrusion, thereby extending the service life of both the protrusion and the lens barrel.

[0042] In one possible design, the protrusion is integrally formed with the lens barrel.

[0043] In this application, the protrusion is integrally formed with the lens barrel, which increases the stability of the connection between the protrusion and the lens barrel, extends the service life of both the protrusion and the lens barrel, and thus extends the service life of the lens.

[0044] A second aspect of this application provides an electronic device comprising a housing and a lens mounted on the housing, the lens being any of the lenses described above.

[0045] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the lens provided in one embodiment of the present application;

[0047] Figure 2 for Figure 1 Enlarged view of section I;

[0048] Figure 3 for Figure 1 A schematic diagram of the structure after the guide rod has been removed.

[0049] Figure 4 for Figure 3 Enlarged view of Part II;

[0050] Figure 5 for Figure 4 A partial structural diagram of the sidewall of the central shaft hole;

[0051] Figure 6 for Figure 1 Front view;

[0052] Figure 7 for Figure 6 Enlarged view of Part III;

[0053] Figure 8 for Figure 7 Rear view;

[0054] Figure 9 for Figure 1 A schematic diagram of the structure of the middle tube.

[0055] Figure label:

[0056] 1-Guide rod;

[0057] 11-Limiting part;

[0058] 2-Eye tube;

[0059] 21-Shaft hole;

[0060] 211 - First end;

[0061] 212 - Second end;

[0062] 213 - First shaft hole;

[0063] 214 - Second shaft hole;

[0064] 22-Protrusion;

[0065] 221 - First protrusion;

[0066] 222 - Second protrusion;

[0067] 223 - First contact point;

[0068] 224 - Second contact point;

[0069] 225 - Third contact point;

[0070] 226 - Fourth contact point;

[0071] 3-Lens.

[0072] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0073] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0074] In one specific embodiment, the present application will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0075] This application provides a lens, such as Figure 1 and Figure 2 As shown, the lens includes: a guide rod 1; a lens barrel 2, the lens barrel 2 having a shaft hole 21 through which at least a portion of the guide rod 1 passes, and the lens barrel 2 being able to slide along the guide rod 1; a lens 3, the lens 3 being mounted on the lens barrel 2; and a motor (not shown in the figure), the motor being connected to the lens barrel 2, and generating magnetic force during the operation of the motor, the shaft hole 21 of the lens barrel 2 being driven by the magnetic force to slide along the guide rod 1; wherein, at least one of the side wall of the shaft hole 21 and the guide rod 1 is provided with a protrusion 22, and during the movement of the lens barrel 2 relative to the guide rod 1, the guide rod 1 abuts against the protrusion 22.

[0076] In this embodiment, at least a portion of the guide rod 1 passes through the shaft hole 21. Since at least one of the sidewall of the shaft hole 21 and the guide rod 1 is provided with a protrusion 22, the guide rod 1 and the sidewall of the shaft hole 21 are in contact through the protrusion 22. Since the area of ​​the protrusion 22 is small, the contact area between the guide rod 1 and the sidewall of the shaft hole 21 can be reduced, thereby reducing the number of motion trajectories of the guide rod 1 and the lens barrel 2 when they move relative to each other. This minimizes the number of motion trajectories of the lens barrel 2, reduces the risk of blurry imaging caused by the offset of the lens barrel 2 during movement, and improves the stability of lens imaging. Meanwhile, the protrusion 22 contacts the side wall of the guide rod 1 and the shaft hole 21, which reduces the contact area between the guide rod 1 and the side wall of the shaft hole 21, reduces the friction when the lens barrel 2 slides along the guide rod 1, thereby reducing the wear of the side wall of the shaft hole 21 and the guide rod 1, extending the service life of the shaft hole 21 and the guide rod. Furthermore, it reduces the risk of increased movement trajectories between the guide rod 1 and the lens barrel 2 due to wear of the side wall of the shaft hole 21 and the guide rod 1, thereby further improving the stability of lens imaging.

[0077] Specifically, there is a gap between the guide rod 1 and the side wall of the shaft hole 21.

[0078] In this embodiment, there is a gap between the guide rod 1 and the side wall of the shaft hole 21, meaning that the guide rod 1 and the side wall of the shaft hole 21 do not contact each other. Therefore, the guide rod 1 and the lens barrel 2 only contact each other through the protrusion 22, thereby further reducing the number of trajectories when the guide rod 1 and the lens barrel 2 move relative to each other. This further reduces the risk of blurry imaging caused by the deviation of the lens barrel 2 during movement, thereby improving the stability of lens imaging. At the same time, the gap between the guide rod 1 and the side wall of the shaft hole 21 can also reduce the friction between the shaft hole 21 and the guide rod 1, thereby reducing wear between the guide rod 1 and the lens barrel 2. In addition, the gap between the guide rod 1 and the side wall of the shaft hole 21 facilitates the assembly of the guide rod 1 and the shaft hole 21, reducing the risk of safety problems caused by inaccurate installation of the guide rod 1 and the shaft hole 21, thereby increasing the accuracy of the installation of the guide rod 1 and the lens barrel 2 and improving the safety of lens use.

[0079] In the first embodiment, such as Figure 1 and Figure 2 As shown, the protrusion 22 is a protrusion or a boss.

[0080] In this embodiment, the protrusion 22 is a raised point or a boss with a small outline area, thereby reducing the contact area between the guide rod 1 and the lens barrel 2. This reduces the number of trajectories when the guide rod 1 and the lens barrel 2 move relative to each other, lowering the risk of unclear imaging due to deviation during the movement of the lens barrel 2. It also reduces the friction between the protrusion 22 and the shaft hole 21 or the guide rod 1, reducing the friction generated when the lens barrel 2 slides along the guide rod 1. This reduces the force required to drive the lens barrel 2 to move, thereby reducing the performance requirements of the motor and lowering the production cost of the lens. At the same time, it reduces the wear of the shaft hole 21 and the guide rod 1, extending their service life and thus improving the lifespan of the lens and the user experience.

[0081] More specifically, the number of protrusions 22 is at least three, and at least three protrusions 22 are not collinear.

[0082] In this embodiment, when at least three protrusions 22 are not collinear, the at least three protrusions 22 can form a triangle, so that the contact points between the guide rod 1 and the protrusions 22 include at least three points and can form a triangle. When the lens barrel 2 slides along the guide rod 1, the contact points between the two form a triangle. Since the triangle has high stability, the trajectory of the relative motion between the lens barrel 2 and the guide rod 1 is unique (the trajectory is the triangle formed by the three non-collinear protrusions 22), thereby greatly reducing the risk of shaking and displacement when the lens barrel 2 moves along the guide rod 1 and improving the stability of lens imaging. At the same time, at least three protrusions 22 can generate lateral force on the guide rod 1. Under the action of the lateral force, the guide rod 1 is limited to the preset installation position, so that the axis 1 of the guide rod 1 is parallel to the axis of the shaft hole 21. This reduces the risk that the axis of the guide rod 1 and the axis of the shaft hole 21 will form an angle during the sliding of the lens barrel 2 along the guide rod 1, which would cause the lens barrel 2 to slide unevenly. This increases the stability of the assembly between the guide rod 1 and the shaft hole 21 and increases the smoothness of the sliding of the lens barrel 2 along the guide rod 1.

[0083] In this embodiment, the triangle formed by at least three protrusions 22 can be an equilateral triangle. The protrusions 22 forming the equilateral triangle can apply a uniform lateral force to the guide rod 1, reducing the risk of the guide rod 1 deviating from the preset installation position due to uneven lateral force, thereby further increasing the stability of the assembly between the guide rod 1 and the shaft hole 21 and the smoothness of the slide of the lens barrel 2 along the guide rod 1.

[0084] In another embodiment, such as Figure 3 and Figure 4 As shown, there are four protrusions 22, and the four protrusions 22 form a quadrilateral.

[0085] In this embodiment, three protrusions 22 can form a triangle. The lens barrel 2 and the guide rod 1 are in contact through the four protrusions 22. When they move relative to each other, although the trajectory of the relative movement between the lens barrel 2 and the guide rod 1 is not unique when there are four protrusions 22, the number of trajectories is smaller. At the same time, it is easier to implement when there are four protrusions 22, thereby reducing the processing difficulty and production cost. In addition, the four protrusions 22 can generate a uniform lateral force on the guide rod 1, thereby promoting the guide rod 1 to be in the preset installation position (the axis of the guide rod 1 is parallel to the axis of the shaft hole 21), thereby reducing the risk that the axis of the guide rod 1 and the axis of the shaft hole 21 will form an angle during the sliding of the lens barrel 2 along the guide rod 1, which would cause the lens barrel 2 to slide unevenly.

[0086] The quadrilateral formed by the four protrusions 22 can be a parallelogram, trapezoid, rhombus, etc. When the quadrilateral is a trapezoid, the greater the difference between the top and bottom of the trapezoid (the closer the trapezoid is to a triangle), the greater the restriction effect of the protrusions 22 on the trajectory of the relative movement between the lens barrel 2 and the guide rod 1.

[0087] More specifically, such as Figure 4 and Figure 5 As shown, the protrusion 22 is disposed on the sidewall of the shaft hole 21 and along the axial direction of the shaft hole 21. The shaft hole 21 includes a first end 211 and a second end 212 disposed opposite to each other. The protrusion 22 includes two first protrusions 221 near the first end 211 and two second protrusions 222 near the second end 212. The distance between the first protrusion 221 and the first end 211 is L1, the distance between the second protrusion 222 and the second end 212 is L2, and the distance between the first end 211 and the second end 212 is L3. L1 / L3 = 0.05~0.25, L2 / L3 = 0.05~0.25. Among them, L1 / L3 can be 0.1, 0.15, or 0.2; L2 / L3 can be 0.1, 0.15, or 0.2.

[0088] In this embodiment, the protrusion 22 is disposed on the side wall of the shaft hole 21. Compared with the protrusion disposed on the guide rod 1, the size of the protrusion 22 can be reduced, which reduces the risk of breakage during the forming process of the protrusion 22, thereby facilitating the processing of the protrusion 22 and reducing the processing cost of the protrusion 22. At the same time, the protrusion 22 can also strengthen the lens barrel 2, especially improving the strength of the thinner wall part of the lens barrel 2 and increasing the service life of the lens barrel 2.

[0089] During the sliding process of the lens barrel 2 along the guide rod 1, the first protrusion 221 and the second protrusion 222 will be subjected to frictional force. If L1 / L3 and L2 / L3 are too small (for example, less than 0.05), that is, the distance L1 between the first protrusion 221 and the first end 211 is too small, and the distance L2 between the second protrusion 222 and the second end 212 is too small, the reinforcing effect of the first protrusion 221 and the second protrusion 222 on the lens barrel 2 is too small, resulting in a low service life of the lens barrel 2. If L1 / L3 and L2 / L3 are too large (for example, greater than 0.25), that is, the distance L1 between the first protrusion 221 and the first end 211 is too large, the lens barrel 2 will have a short service life. The distance L2 between the second protrusion 222 and the second end 212 is too large. When the length L3 of the shaft hole 21 is the same, the distance between the first protrusion 221 and the second protrusion 222 is too small. This results in the distance between the contact points of the first protrusion 221 and the second protrusion 222 and the guide rod 1 being too small, reducing the fit size between the guide rod 1 and the lens barrel 2. This leads to a decrease in the reliability of the lens barrel 2 sliding along the guide rod 1. At the same time, it causes the lateral force of the first protrusion 221 and the second protrusion 222 on the guide rod 1 and the shaft hole 21 to be concentrated in the middle part, resulting in excessive local stress on the guide rod 1 and the shaft hole 21, which can easily lead to damage to the shaft hole 21 and the guide rod 1.

[0090] Therefore, setting L1 / L3 = 0.05~0.25 and L2 / L3 = 0.05~0.25 can improve the reliability of the lens barrel 2 sliding along the guide rod 1, while also increasing the service life of the lens barrel 2.

[0091] In addition, L1 / L3 and L2 / L3 can be the same or different, and L2 / L3 can be greater than L1 / L3 or less than L1 / L3.

[0092] More specifically, such as Figure 6 and Figure 7 As shown, the two first protrusions 221 contact the outer surface of the guide rod 1 at the first contact point 223 and the second contact point 224, and the central angle formed by the first contact point 223 and the second contact point 224 is α1; the two second protrusions 222 contact the outer surface of the guide rod 1 at the third contact point 225 and the fourth contact point 226, and the central angle formed by the third contact point 225 and the fourth contact point 226 is α2; wherein, α1≤120°, α2≤120°.

[0093] In this embodiment, the guide rod 1 at the second contact point 224 is in close contact with the first protrusion 221 and the second protrusion 222 under the magnetic force generated by the motor. The two first protrusions 221 and the two second protrusions 222 clamp the guide rod 1, thus limiting the guide rod 1 between the two first protrusions 221 and the two second protrusions 222, reducing the risk of shaking when the lens barrel 2 slides along the guide rod 1. Setting α1≤120° and α2≤120° ensures that the distances between the first contact point 223 and the second contact point 224, the third contact point 225 and the fourth contact point 226 are neither too large nor too small, thereby reducing the risk of the guide rod 1 contacting the sidewall of the shaft hole 21 and improving the stability of the fit between the protrusion 22 and the guide rod 1. At the same time, when α1≤120° and α2≤120°, the risk of the lens barrel 2's movement trajectory deviating due to the sidewall of the shaft hole 21 applying lateral forces in other directions to the guide rod 1 can also be reduced, thereby improving the working stability of the lens.

[0094] More specifically, 65°≤α1≤95°, 65°≤α2≤95°. Where α1=70°, 80°, 90°; α2=70°, 80°, 90°.

[0095] In this embodiment, if α1 and α2 are too small (e.g., less than 65°), the distance between the first contact point 223 and the second contact point 224, and the distance between the third contact point 225 and the fourth contact point 226 will be too small. That is, the size of the guide rod 1 located between the two first protrusions 221 and the two second protrusions 222 will be too small. When the first protrusions 221 and the second protrusions 222 apply lateral force to the guide rod 1 and the shaft hole 21, the lens barrel 2 is prone to displacement, and the reliability of the fit between the lens barrel 2 and the guide rod 1 is low. If α1 and α2 are too large (e.g., greater than 95°), it will increase the risk of contact with the sidewall of the shaft hole 21, resulting in too many relative movement trajectories between the guide rod 1 and the lens barrel 2, increasing the risk of displacement of the lens barrel 2. Therefore, setting 65°≤α1≤95° and 65°≤α2≤95° can improve the reliability of the fit between the lens barrel 2 and the guide rod 1, reduce the number of relative movement trajectories between the guide rod 1 and the lens barrel 2, and improve the working stability of the lens.

[0096] Specifically, the two first protrusions 221 are symmetrical with respect to the axis of the guide rod 1, and the two second protrusions 222 are symmetrical with respect to the axis of the guide rod 1.

[0097] In this embodiment, the two first protrusions 221 are symmetrical with respect to the axis of the guide rod 1, and the two second protrusions 222 are symmetrical with respect to the axis of the guide rod 1. This ensures that the two first protrusions 221 and the two second protrusions 222 exert uniform lateral forces on the guide rod 1 and the shaft hole 21, reducing the risk of uneven force distribution on the two first protrusions 221 and the two second protrusions 222, which could lead to severe local wear and cause poor contact between the guide rod 1 and the protrusions 22. Simultaneously, it reduces the risk of the shaft hole 21 deviating from its predetermined sliding track under uneven lateral forces, thereby improving the stability of the contact between the guide rod 1 and the protrusions 22, and consequently improving the stability of the lens barrel 2 moving along the guide rod 1. Furthermore, the symmetry of the two first protrusions 221 and the two second protrusions 222 simplifies the machining difficulty of the protrusions 22 in the lens barrel 2.

[0098] In the second embodiment, the protrusion 22 is a protruding ring.

[0099] In this embodiment, at least a portion of the guide rod 1 is located within the convex ring, and the guide rod 1 is in close contact with the convex ring. That is, when the guide rod 1 and the lens barrel 2 move relative to each other, they only contact each other through the convex ring. This reduces the number of motion trajectories of the guide rod 1 and the lens barrel 2 during relative motion, thereby reducing the risk of the shaft hole 21 shifting relative to the guide rod 1. It also makes the motion trajectory of the lens barrel 2 relative to the guide rod 1 parallel to the axis of the guide rod 1, reducing the risk of unclear imaging caused by the shift of the lens barrel 2 during movement, and thus improving the stability of lens imaging. At the same time, the contact area between the lens barrel 2 and the guide rod 1 is reduced, reducing the frictional force generated when the lens barrel 2 slides along the guide rod 1, thereby reducing the force required to drive the lens barrel 2 to move, thus reducing the performance requirements of the motor and reducing the production cost of the lens. It also reduces the wear of the shaft hole 21 and the guide rod 1, extending the service life of the shaft hole 21 and the guide rod 1, thereby improving the service life of the lens.

[0100] Specifically, the protrusion 22 is disposed on the sidewall of the shaft hole 21 along the axial direction of the shaft hole 21. The shaft hole 21 includes a first end 211 and a second end 212 disposed opposite to each other. The protrusion 22 includes a first convex ring near the first end 211 and a second convex ring near the second end 212. The distance between the first convex ring and the first end 211 is L4, the distance between the second convex ring and the second end 212 is L5, and the distance between the first end 211 and the second end 212 is L3. L4 / L3 = 0.05~0.25, L5 / L3 = 0.05~0.25. Among them, L4 / L3 can be 0.1, 0.15, or 0.2; L5 / L3 can be 0.1, 0.15, or 0.2.

[0101] In this embodiment, during the sliding process of the lens barrel 2 along the guide rod 1, the first and second convex rings are subjected to frictional forces. If L4 / L3 and L5 / L3 are too small (e.g., less than 0.05), that is, the distance L4 between the first convex ring and the first end 211 is too small, and the distance L5 between the second convex ring and the second end 212 is too small, the reinforcing effect of the first and second convex rings on the lens barrel 2 is too small, resulting in a low service life of the lens barrel 2. If L4 / L3 and L5 / L3 are too large (e.g., greater than 0.25), that is, the distance L4 between the first convex ring and the first end 211 is too large, the reinforcing effect of the first and second convex rings on the lens barrel 2 is too small, resulting in a low service life of the lens barrel 2. If the distance L4 is too large, the distance L5 between the second convex ring and the second end 212 will be too large. When the length L3 of the shaft hole 21 is the same, the distance between the first convex ring and the second convex ring will be too small. This will result in the distance between the contact points of the first convex ring and the second convex ring and the guide rod 1 being too small, reducing the fit size between the guide rod 1 and the lens barrel 2. This will reduce the reliability of the lens barrel 2 sliding along the guide rod 1. At the same time, it will cause the lateral force of the first convex ring and the second convex ring on the guide rod 1 and the shaft hole 21 to be concentrated in the middle part, resulting in excessive local stress on the guide rod 1 and the shaft hole 21, which may easily lead to damage to the shaft hole 21 and the guide rod 1.

[0102] Therefore, setting L4 / L3 = 0.05~0.25 and L5 / L3 = 0.05~0.25 can improve the reliability of the lens barrel 2 sliding along the guide rod 1, while also increasing the service life of the lens barrel 2.

[0103] In addition, L4 / L3 and L5 / L3 can be the same or different, and L5 / L3 can be greater than L4 / L3 or less than L4 / L3.

[0104] In any of the above embodiments, such as Figure 9 As shown, the lens barrel 2 includes two spaced-apart shaft holes 21, and a protrusion 22 is disposed on the side wall of one shaft hole 21.

[0105] In this embodiment, the lens barrel 2 includes two spaced-apart shaft holes 21, which allow the two guide rods 1 to simultaneously restrict the sliding trajectory of the lens barrel 2, reducing the risk of rotation of the lens barrel 2 relative to the guide rods 1 and thus increasing the stability of the lens barrel 2 sliding along the guide rods 1. If both shaft holes 21 are provided with protrusions 22, so that the two guide rods 1 are in close contact with the protrusions 22 in both shaft holes 21, due to the machining errors of the guide rods 1, shaft holes 21, and protrusions 22, when the lens barrel 2 moves along the guide rods 1, the shaft holes 21 are prone to jamming with the guide rods 1, which would affect the sliding of the lens barrel 2. Therefore, the protrusions 22 are provided on the sidewall of one shaft hole 21, which ensures the stability of the sliding trajectory of the lens barrel 2 while reducing the risk of the lens barrel 2 jamming, thereby increasing the stability and smoothness of the sliding of the lens barrel 2 and improving the working performance of the lens.

[0106] Specifically, such as Figure 9As shown, the shaft hole 21 includes a first shaft hole 213 and a second shaft hole 214, with a protrusion 22 disposed in the first shaft hole 213. The first shaft hole 213 has a hexagonal cross-sectional shape, and the second shaft hole 214 has a hexagonal or circular cross-sectional shape. The protrusion 22 is disposed on the relatively inclined side walls of the first shaft hole 213.

[0107] In this embodiment, the first shaft hole 213 has a hexagonal cross-sectional shape, and the protrusions 22 are disposed on the relatively inclined side walls of the first shaft hole 213. When the lens barrel 2 slides along the guide rod 1, the hexagonal first shaft hole 213 can generate an inclined force on the guide rod 1 through the protrusions 22. This force can make the guide rod 1 and the protrusions 22 in close contact, reducing the risk of the first shaft hole 213 wobbling relative to the guide rod 1 during the sliding of the lens barrel 2 along the guide rod 1, and increasing the stability of the connection between the guide rod 1 and the protrusions 22, thereby improving the stability of the movement of the lens barrel 2 along the guide rod 1. In addition, when the protrusions 22 are disposed in the hexagonal first shaft hole 213, it is easy to determine the position of the protrusions 22 during the processing, that is, the protrusions 22 can be disposed on the relatively inclined side walls of the hexagonal first shaft hole 213, thereby reducing the processing difficulty.

[0108] The cross-sectional shape of the second shaft hole 214 can be the same as or different from that of the first shaft hole 213. When the cross-sectional shape of the second shaft hole 214 is the same as that of the first shaft hole 213 (i.e., both are hexagonal), the first shaft hole 213 and the second shaft hole 214 are used as precision positioning holes simultaneously. To ensure the stability of the first shaft hole 213 and the second shaft hole 214 when they move along the guide rod 1, it is necessary to increase the control requirements for the distance between the two guide rods 1. At the same time, it is also necessary to increase the distance between the first shaft hole 213 and the second shaft hole 214 and the distance between the two guide rods 1. The mismatch in spacing increases the difficulty of matching the first shaft hole 213 and the second shaft hole 214 with the corresponding guide rod 1, and increases the processing difficulty, thereby increasing the production cost. When the cross-sectional shape of the second shaft hole 214 is different from that of the first shaft hole 213, that is, when the cross-sectional shape of the second shaft hole 214 is circular, the accuracy requirements for the spacing of the guide rod 1 and the matching requirements for the spacing of the guide rod 1 with the spacing of the first shaft hole 213 and the second shaft hole 214 are reduced, thereby reducing the difficulty of positioning and matching the guide rod 1 with the two shaft holes, and reducing the processing accuracy and processing difficulty.

[0109] The cross-sections of the first shaft hole 213 and the second shaft hole 214 can be other polygons and their derivative structures.

[0110] like Figure 2As shown, the guide rod 1 has two opposing limiting parts 11 at its two ends along the axial direction. The limiting parts 11 protrude radially from the outer wall of the guide rod 1, and the size of the limiting parts 11 is larger than the size of the shaft hole 21, which reduces the risk of the lens barrel 2 disengaging from the guide rod 1 during the movement of the shaft hole 21 along the guide rod 1, thereby increasing the stability of the lens barrel 2 and the guide rod 1.

[0111] In one embodiment, the lens further includes an insert that forms an axial hole 21 and is fixedly connected to the lens barrel 2.

[0112] In this embodiment, the protrusion 22 is disposed on the insert, and the insert is fixedly connected to the lens barrel 2. Separating the protrusion 22 from the lens barrel 2 facilitates the processing and replacement of the protrusion 22, thereby extending the service life of the protrusion 22 and the lens barrel 2, and consequently extending the service life of the lens and improving its performance.

[0113] In this embodiment, an insert is used. The insert, with its protrusion 22 pre-machined, is then injection-molded into the side wall of the shaft hole 21 of the lens barrel 2. The pre-machined protrusion 22 then appears on the side wall of the shaft hole 21, contacting the guide rod 1 and stabilizing its movement. The insert can be a metal insert.

[0114] In another embodiment, such as Figure 9 As shown, the protrusion 22 is integrally formed with the lens barrel 2.

[0115] In this embodiment, the protrusion 22 is integrally formed with the lens barrel 2, which reduces the risk of the protrusion 22 separating from the lens barrel 2 during the sliding process, thereby increasing the stability of the connection between the protrusion 22 and the lens barrel 2, extending the service life of the protrusion 22 and the lens barrel 2, and thus extending the service life of the lens.

[0116] In this embodiment, the lens barrel 2 is molded. The protrusion 22 structure is formed directly by the mold insert engaging with the lens barrel 2.

[0117] This application also provides an electronic device, which includes the lens described in any of the embodiments. The electronic device may be a camera, mobile phone, tablet computer, desktop computer, laptop computer, handheld computer, notebook computer, ultra-mobile personal computer (UMPC), netbook, cellular phone, personal digital assistant (PDA), augmented reality (AR) device, virtual reality (VR) device, artificial intelligence (AI) device, wearable device, in-vehicle device, smart home device, and / or smart city device. This application does not impose any special limitations on the specific type of the electronic device.

[0118] It should be noted that a portion of this patent application contains copyrighted material. The copyright holder retains all rights except for making copies of the contents of patent documents or records from the patent office.

Claims

1. A lens, characterized in that, The lens includes: Guide rod; The lens barrel has a shaft hole through which at least a portion of the guide rod passes. The lens barrel is slidable along the guide rod. The shaft hole includes a first end and a second end that are arranged opposite to each other along its own axial direction. The distance between the first end and the second end is L3. Lens, the lens being mounted on the lens barrel; The sidewall of the shaft hole is provided with a protrusion, and the guide rod abuts against the protrusion during the movement of the lens barrel relative to the guide rod. Along the axial direction of the shaft hole, the protrusion is a protrusion or a boss. The protrusion includes a first protrusion near the first end and a second protrusion near the second end. The distance between the first protrusion and the first end is L1, and the distance between the second protrusion and the second end is L2. L1 / L3 = 0.05~0.25, L2 / L3 = 0.05~0.

25. Alternatively, the protrusion may be a convex ring, which includes a first convex ring near the first end and a second convex ring near the second end. The distance between the first convex ring and the first end is L4, and the distance between the second convex ring and the second end is L5. L4 / L3 = 0.05~0.25 and L5 / L3 = 0.05~0.

25.

2. The lens according to claim 1, characterized in that, The guide rod has a gap with the side wall of the shaft hole.

3. The lens according to claim 2, characterized in that, The protrusion is a protrusion or a boss, and the number of the protrusions is at least three, and at least three of the protrusions are not collinear.

4. The lens according to claim 3, characterized in that, The number of protrusions is four, and the four protrusions form a quadrilateral.

5. The lens according to claim 4, characterized in that, Along the axial direction of the shaft hole, the protrusion includes two first protrusions near the first end and two second protrusions near the second end.

6. The lens according to claim 5, characterized in that, The two first protrusions contact the outer surface of the guide rod at a first contact point and a second contact point, and the first contact point and the second contact point are at a central angle α1 on the guide rod. The two second protrusions contact the outer surface of the guide rod at a third contact point and a fourth contact point, wherein the third contact point and the fourth contact point are at a central angle of α2 on the guide rod. Where α1≤120°, α2≤120°.

7. The lens according to claim 6, characterized in that, 65°≤α1≤95°，65°≤α2≤95°。 8. The lens according to claim 5, characterized in that, The two first protrusions are symmetrical with respect to the axis of the guide rod, and the two second protrusions are symmetrical with respect to the axis of the guide rod.

9. The lens according to claim 1, characterized in that, The protrusion is a convex ring, and the first convex ring and the second convex ring are disposed on the side wall of the shaft hole.

10. The lens according to any one of claims 1 to 9, characterized in that, The lens barrel includes two spaced-apart shaft holes, and the protrusion is disposed on the side wall of one of the shaft holes.

11. The lens according to claim 10, characterized in that, The shaft hole includes a first shaft hole and a second shaft hole, and the protrusion is disposed in the first shaft hole; The first shaft hole has a hexagonal cross-sectional shape, and the protrusion is provided on the relatively inclined side walls of the first shaft hole; The cross-sectional shape of the second shaft hole is hexagonal or circular.

12. The lens according to any one of claims 1 to 9, characterized in that, The lens also includes an insert that forms the axial hole and is fixedly connected to the lens barrel.

13. The lens according to any one of claims 1 to 9, characterized in that, The protrusion is integrally formed with the lens barrel.

14. An electronic device, characterized in that, The electronic device includes a housing and a lens mounted on the housing, wherein the lens is the lens according to any one of claims 1 to 13.

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