Lens and camera

Abstract

This application provides a lens and a camera device. The lens includes a lens barrel, a lens housing within the lens barrel, and a positioning structure. The positioning structure is fixed to the inner wall of the lens barrel and includes an inner circumferential surface and an outer circumferential surface opposite each other in the radial direction of the lens. The inner circumferential surface of the positioning structure surrounds the outer circumferential surface of the lens in the radial direction. The positioning structure along the radial direction of the lens is used to install and fix the lens, maintaining the stability of the lens in the radial direction. During lens assembly, the lens can be directly installed into the positioning structure, achieving the interference fit requirement between the lens and the positioning structure, making assembly convenient. A clearance area is provided between the outer side of the positioning structure along the radial direction of the lens and the inner wall of the lens barrel. This clearance area can provide a certain buffering effect for the radial compressive force on the lens, thereby reducing the risk of lens breakage and deformation and extending the service life of the lens.

Description

Technical Field

[0001] This application relates to the field of optical imaging, and more particularly to lenses and camera devices. Background Technology

[0002] As the core component of imaging, the stability of the lens is a critical indicator. For example, as the core optical element of intelligent driving system, the reliability of lens positioning of automotive lenses directly affects the image quality and system stability. Currently, the mainstream solution for automotive lenses uses a combination structure of metal lens barrel (aluminum / copper alloy) and glass / plastic lens to position the lens. However, the difference in the coefficient of thermal expansion (CTE) of the materials leads to large assembly stress at high and low temperatures, which may cause the lens to break or deform. Utility Model Content

[0003] In view of this, this application provides a lens and a camera device, which provides a buffering effect for the radial compressive force on the lens by setting a positioning structure between the outer diameter of the lens and the inner wall of the lens barrel, and setting an empty area between the outer side of the positioning structure and the inner wall of the lens barrel, thereby improving the risk of lens breakage and deformation.

[0004] In a first aspect, this application provides a lens, the lens including a lens barrel and a lens and a positioning structure housed in the lens barrel, the positioning structure being fixed to the inner wall of the lens barrel, the positioning structure including an inner peripheral surface and an outer peripheral surface opposite to each other in the radial direction of the lens, at least a portion of the inner peripheral surface of the positioning structure being in contact with the outer peripheral surface of the lens, a clearance area being provided between a first portion of the outer peripheral surface of the positioning structure and the inner wall of the lens barrel; along the radial direction, the projection of the clearance area at least partially coincides with the projection of the contact area.

[0005] This application utilizes a positioning structure between the outer diameter of the lens and the inner wall of the lens barrel. This radial positioning structure is used to install and fix the lens, maintaining its stability in the radial direction. A clearance area is provided between the outer side of the radial positioning structure and the inner wall of the lens barrel. The projection of this clearance area at least partially overlaps with the projection of the contact area. When the lens is subjected to radial compressive force, the clearance area provides a buffer, reducing the pressure on the lens's outer diameter and thus mitigating the risk of breakage and deformation, extending the lens's lifespan.

[0006] In one possible implementation, the portion of the positioning structure surrounding the outer peripheral surface of the lens is a positioning part, the positioning part is annular, the inner peripheral surface of the positioning structure includes a portion of the inner peripheral surface of the positioning structure for fitting with the lens, and a first portion of the outer peripheral surface of the positioning structure is the outer peripheral surface of the positioning part, and at least a portion of the projection of the first portion coincides with the projection of the fitting area along the radial direction.

[0007] In this embodiment, the portion of the positioning structure surrounding the outer peripheral surface of the lens is an annular positioning part. By providing an annular positioning part surrounding the outer peripheral surface of the lens, the outer peripheral surface of the lens can be fitted with the inner peripheral surface of the positioning part, ensuring the stability of the lens in the radial direction and fixing the lens to the positioning part in the radial direction, thereby preventing the lens from falling off and maintaining the reliability of the lens. A clearance area is formed between the first part of the outer peripheral surface of the positioning structure and the inner wall of the lens barrel. Along the radial direction of the lens, the first part of the outer peripheral surface of the positioning structure is the outer peripheral surface of the positioning part. At least a portion of the projection of the first part coincides with the projection of the fitting area. When the lens is subjected to radial compressive force, the clearance area can provide a certain buffering effect for the radial compressive force on the lens, reducing the compressive force on the outer diameter of the lens, thereby improving the risk of lens breakage and deformation and extending the service life of the lens.

[0008] In one possible implementation, the clearance area is an annular groove surrounding the positioning part.

[0009] In this embodiment, by setting an annular clearance area surrounding the positioning part, the clearance area is a continuous annular groove, which can prevent the external extrusion pressure on the clearance area from being uneven due to the discontinuity of the annular groove, thereby preventing the lens from being subjected to uneven extrusion pressure, resulting in lens breakage and deformation.

[0010] In one possible implementation, the size of the positioning portion along the radial direction of the lens is larger than the size of the clearance area.

[0011] In this embodiment, by setting the size of the positioning part along the radial direction of the lens to be larger than the size of the clearance area, the clearance area has a certain buffering effect when the lens is subjected to compressive force, thereby limiting the size of the clearance area to prevent the clearance area from being too long and affecting the positioning function of the positioning part. Moreover, if the clearance area is too long, it will easily affect the overall size of the lens barrel, thereby affecting the imaging quality of the lens.

[0012] In one possible implementation, the lens barrel includes a protrusion that protrudes from the inner wall of the lens barrel toward the lens, a second portion of the outer peripheral surface of the positioning structure fits against the protrusion, and the first and second portions of the outer peripheral surface of the positioning structure are arranged along the axial direction of the lens.

[0013] In this embodiment, by providing a protrusion in the lens barrel facing the lens, and by fitting the protrusion and the positioning structure together in the radial direction of the lens, the positioning structure and the lens barrel are fixed together in the radial direction, so that the positioning structure has a certain stability in the lens barrel.

[0014] In one possible implementation, the positioning structure further includes a spacer ring, the spacer ring having the second portion on the outer peripheral surface of the lens in the radial direction, the spacer ring also having a top surface and a bottom surface opposite each other in the axial direction of the lens, the bottom surface of the lens in the axial direction being disposed on the top surface of the spacer ring, and the positioning portion being disposed on the top surface of the spacer ring.

[0015] In this embodiment, by setting a spacer in the positioning structure, the top and bottom surfaces of the spacer are positioned opposite each other along the axial direction of the lens. The top surface of the spacer is fitted to the bottom surface of the lens to ensure the fixing effect between the spacer and the lens, so that the lens has a certain stability and reliability relative to the positioning structure, and prevents the lens from sliding or falling off in the axial direction.

[0016] In one possible implementation, the spacer ring and the positioning part are integrally formed, and the outer peripheral surface of the spacer ring and the outer peripheral surface of the positioning part are flush in the radial direction.

[0017] In this embodiment, the spacer and the positioning part are an integral structure. The outer peripheral surface of the spacer and the outer peripheral surface of the positioning part are flush with each other in the radial direction of the lens. The processing technology is simple and convenient. The positioning part and the spacer together position the lens, which helps to improve the stability of the lens in the lens barrel, prevent the lens from falling off or sliding, and thus extend the service life of the lens.

[0018] In one possible implementation, the spacer ring and the positioning part are separate structures.

[0019] In this embodiment, the spacer and the positioning part are separate independent structures, which are easy to replace and install. The positioning part and the spacer together position the lens, which helps to improve the stability of the lens in the lens barrel, prevent the lens from falling off or sliding, and thus extend the service life of the lens.

[0020] In one possible implementation, the positioning structure is a ring structure, the positioning structure and the lens barrel are integrally formed, and the bottom of the positioning structure is connected to the bottom of the lens barrel along the axial direction of the lens.

[0021] In this embodiment, a ring-shaped positioning structure is provided, which surrounds the outer diameter of the lens. The bottom of the positioning structure is connected to the bottom of the lens barrel to position the lens, thus improving the stability of the lens barrel. During manufacturing, the positioning structure and the lens barrel are integrated, reducing the manufacturing difficulty of the lens and facilitating lens assembly. When assembling the lens, the lens can be directly installed into the positioning structure, making lens assembly more convenient.

[0022] Secondly, this application provides a camera device, which includes the lens described above. This camera device is used to acquire image information. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0024] Figure 1 This is a schematic diagram of the lens structure provided in one embodiment of this application; Figure 2 This is another schematic diagram of the lens structure provided in one embodiment of this application; Figure 3 yes Figure 1 Cross-sectional view of lens 10; Figure 4 yes Figure 3 A magnified view of a portion of point A in the diagram; Figure 5 This is another cross-sectional view of a lens provided in another embodiment of this application; Figure 6 yes Figure 5 A magnified view of a portion of point A in the diagram; Figure 7 This is another cross-sectional view of a lens provided in another embodiment of this application; Figure 8 yes Figure 7 A magnified view of a portion of point A in the diagram; Figure 9 This is another cross-sectional view of a lens provided in another embodiment of this application; Figure 10 This is a schematic diagram of a car structure provided in one embodiment of this application. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0027] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0028] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0029] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0030] Firstly, the lens provided in the embodiments of this application is applicable to automotive lenses, camera lenses, etc.

[0031] Figure 1 This is a schematic diagram of the structure of a lens 10 provided in one embodiment of this application. Figure 2 This is another schematic diagram of the structure of the lens 10 provided in one embodiment of this application. Figure 1 and Figure 2 Together, they form a complete shot 10. (See also...) Figure 1 and Figure 2 As shown, in one embodiment, the lens 10 includes a lens barrel 100, a lens 200, and a positioning structure 300. The lens barrel 100 is cylindrical in shape, and the lens 200 is either an aspherical lens or a spherical lens.

[0032] Figure 3 yes Figure 1 A cross-sectional view of the central lens 10. In one embodiment, see further... Figure 1 and Figure 3As shown, the lens barrel 100 includes a receiving portion 110, which is cylindrical in shape. The lens 200 and the positioning structure 300 are housed together in the receiving portion 110 of the lens barrel 100 to realize the installation and fixation of the lens 200 and the positioning structure 300. The positioning structure 300 is fixed to the inner wall of the lens barrel 100 along the radial direction of the lens 200. The positioning structure 300 includes an outer peripheral surface 301 and an inner peripheral surface 302 arranged relative to the radial direction of the lens 200. The lens 200 also includes an outer peripheral surface 201 and an inner peripheral surface 202 arranged relative to the radial direction of the lens 200. The inner peripheral surface 302 of the positioning structure 300 is arranged around the outer peripheral surface 301 of the lens 200 in the radial direction. The inner peripheral surface 302 of the positioning structure 300 and the outer peripheral surface 201 of the lens 200 are fitted together to form a fitting area 500, so that the lens 200 can be fixed on the positioning structure 300, maintaining the stability of the lens 200 in the radial direction. When assembling the lens 10, the lens 200 can be directly installed into the positioning structure 300, achieving the interference fit requirement between the lens 200 and the positioning structure 300, making assembly convenient. Along the radial direction of the lens 200, a clearance area 400 is provided between the outer peripheral surface 301 of the positioning structure 300 and the inner wall of the lens barrel 100. That is, at least a part of the outer peripheral surface 301 of the positioning structure 300 does not contact the inner wall of the lens barrel 100, and the projection of the clearance area 400 at least partially coincides with the projection of the mating area 500. When the lens 10 is subjected to the radial compressive force of the lens 200, the clearance area 400 can provide a buffer for at least part of the radial compressive force on the lens 200, so that the outer diameter of the lens 200 will not bear a large compressive force, thereby improving the risk of the lens 200 breaking and deforming due to compressive force and extending the service life of the lens 200.

[0033] In one embodiment, a clearance area 400 is provided between the outer peripheral surface 301 of the positioning structure 300 and the inner wall of the lens barrel 100 along the radial direction of the lens 200. That is, at least a part of the outer peripheral surface 301 of the positioning structure 300 is not in contact with the inner wall of the lens barrel 100, and the projection of the contact area 500 is completely located within the projection of the clearance area 400. When the lens 10 is subjected to a compressive force in the radial direction of the lens 200, the clearance area 400 can provide a buffer for the radial compressive force on the lens 200, so that the outer diameter of the lens 200 will not bear a large compressive force, thereby improving the risk of the lens 200 breaking and deforming due to compressive force and extending the service life of the lens 200.

[0034] In one embodiment, the number of lenses 200 includes at least two, and the number of lenses 200 can be two, three or four, etc. Multiple lenses 200 are stacked in the lens barrel 100 along the axial direction of the lenses 200. Multiple lenses 200 and positioning structure 300 are housed together in the receiving part 110 of the lens barrel 100 to realize the installation and fixation of multiple lenses 200 and positioning structure 300.

[0035] Continue reading Figure 3 As shown, in one embodiment, the positioning structure 300 further includes a positioning part 310. The first part of the positioning structure 300 surrounding the outer peripheral surface 201 of the lens 200 is the positioning part 310. The inner peripheral surface of the positioning part 310 includes the inner peripheral surface 302 of the positioning structure 300, that is, the first part of the inner peripheral surface 302 of the positioning structure 300 is the inner peripheral surface of the positioning part 310. The outer peripheral surface of the positioning part 310 includes the outer peripheral surface 301 of the positioning structure 300, that is, the first part of the outer peripheral surface 301 of the positioning structure 300 is the outer peripheral surface of the positioning part 310. In one embodiment, the number of positioning parts 310 includes one, and the positioning part 310 is annular in shape. The positioning part 310 is disposed around the outer peripheral surface 201 of the lens 200. The outer peripheral surface 201 of the lens 200 and the inner peripheral surface 302 of the positioning part 310 are fitted together to form a fitting area 500. At least a portion of the projection of the first part coincides with the projection of the fitting area 500, so that the lens 200 can be fixed on the positioning part 310, preventing the lens 200 from falling off and maintaining the stability and reliability of the lens 200.

[0036] In one embodiment, the number of positioning parts 310 includes at least two, and the number of positioning parts 310 can be two, three or four, etc. Along the circumferential direction of the lens 200, multiple positioning parts 310 are arranged at intervals around the lens 200. Along the axial direction of the lens 200, multiple positioning parts 310 are stacked. The inner circumferential surfaces of multiple positioning parts 310 are all fitted to the outer circumferential surface 201 of the lens 200, so that the lens 200 can be fixed on the positioning parts 310, preventing the lens 200 from falling off and maintaining the stability and reliability of the lens 200.

[0037] In one embodiment, the number of positioning parts 310 includes at least two, and the number of positioning parts 310 can be two, three, or four, etc. Multiple positioning parts 310 are arranged circumferentially around the lens 200 along the circumferential direction. The outer peripheral surfaces of the multiple positioning parts 310 are provided with spaced protrusions. When the lens 10 is subjected to radial pressure on the lens 200, the spaced protrusions can provide a buffering effect for the radial pressure on the lens 200, so that the outer diameter of the lens 200 will not bear a large pressure, thereby improving the risk of the lens 200 breaking and deforming due to pressure and extending the service life of the lens 200.

[0038] In one embodiment, along the axial direction of the lens 200, the inner peripheral surface 302 of the positioning structure 300 is fitted with the outer peripheral surface 201 of the lens 200 to form a fitting area 500. The first part of the outer peripheral surface 301 of the positioning structure 300 is the outer peripheral surface of the positioning part 310. At least a portion of the projection of the first part coincides with the projection of the fitting area 500, so that the lens 200 can be fixed on the positioning structure 300 along the axial direction of the lens 200, preventing the lens 200 from falling off and maintaining the stability and reliability of the lens 200 in the axial direction.

[0039] Continue reading Figure 3 As shown, in one embodiment, along the radial direction of the lens 200, a portion of the outer peripheral surface 301 of the positioning structure 300 does not contact the inner wall of the lens barrel 100, and the area where the first portion of the outer peripheral surface 301 of the positioning structure 300 does not contact the inner wall of the lens barrel 100 is a clearance area 400. When the lens 10 is subjected to a compressive force in the radial direction of the lens 200, the clearance area 400 can provide a buffer for the radial compressive force on the lens 200, so that the outer diameter of the lens 200 will not bear a large compressive force, thereby improving the risk of the lens 200 breaking and deforming under compressive force and extending the service life of the lens 200. The clearance area 400 is an annular groove surrounding the positioning structure 300 to prevent the clearance area 400 from bearing uneven compressive force due to the discontinuity of the annular groove, thereby preventing the lens 200 from breaking and deforming under compressive force. The outer peripheral surface 301 of the second part of the positioning structure 300 is fitted to the inner wall of the lens barrel 100 so that the positioning structure 300 is fixed in the inner wall of the lens barrel 100, ensuring the stability of the positioning structure 300 and preventing the positioning structure 300 from sliding or tilting.

[0040] In one embodiment, along the radial direction of the lens 200, the outer peripheral surface 301 of the positioning part 310 does not contact the inner wall of the lens barrel 100, and the area where the outer peripheral surface 301 of the positioning part 310 does not contact the inner wall of the lens barrel 100 is a clearance area 400. The clearance area 400 is an annular groove surrounding the positioning part 310. A portion of the outer peripheral surface 301 of the positioning structure 300 is fitted to the inner wall of the lens barrel 100 so that the positioning structure 300 is fixed in the inner wall of the lens barrel 100, ensuring the stability of the positioning structure 300 and preventing the positioning structure 300 from sliding or tilting.

[0041] Figure 4 yes Figure 3 See the enlarged view of point A in the middle. Figure 3 and Figure 4As shown, in one embodiment, the positioning part 310 is in a continuous annular shape. The positioning part 310 has a certain size to ensure the fixation of the lens 200. The size of the positioning part 310 along the radial direction of the lens 200 is larger than the size of the clearance area 400. When the lens 200 is subjected to compressive force, the size of the clearance area 400 has a certain buffering effect. The size of the clearance area 400 should not be too long to ensure that the positioning part 310 has a certain positioning stability for the lens 200, and to prevent the size of the clearance area 400 from being too long and affecting the positioning function of the positioning part 310. Moreover, if the size of the clearance area 400 is too long, it will easily affect the overall size of the lens 200 or the lens barrel 100, thereby affecting the imaging quality of the lens 10.

[0042] In one embodiment, the size of the positioning part 310 along the radial direction of the lens 200 is equal to the size of the clearance area 400. When the lens 200 is subjected to compressive force, the size of the clearance area 400 has a certain buffering effect. The size of the clearance area 400 should not be too long to ensure that the positioning part 310 has a certain positioning stability for the lens 200, and to prevent the size of the clearance area 400 from being too long and affecting the positioning function of the positioning part 310. In addition, the size of the clearance area 400 being too long can easily affect the overall size of the lens 200 or the lens barrel 100, thereby affecting the imaging quality of the lens 10.

[0043] Continue reading Figure 3 and Figure 4 As shown, in one embodiment, the lens barrel 100 includes a protrusion 120 along the direction from the lens barrel 100 toward the lens 200. The protrusion 120 extends a certain length along the direction from the lens barrel 100 toward the lens 200. The protrusion 120 includes an outer peripheral surface 121 along the radial direction of the lens 200. That is, part of the inner wall of the lens barrel 100 is the outer peripheral surface 121 of the protrusion 120. The second part of the outer peripheral surface 301 of the positioning structure 300 along the radial direction of the lens 200 is fitted to the outer peripheral surface 121 of the protrusion 120 to ensure the fixing effect between the positioning structure 300 and the lens barrel 100, so that the positioning structure 300 has a certain stability. The area where the outer peripheral surface 301 of the positioning structure 300 does not contact the protrusion 120 is a clearance area 400. When the lens 10 is subjected to radial compressive force from the lens 200, the clearance area 400 can provide a buffer for the radial compressive force on the lens 200, so that the outer diameter of the lens 200 will not bear a large compressive force, thereby reducing the risk of the lens 200 breaking and deforming under compressive force and extending the service life of the lens 200.

[0044] Continue reading Figure 3 and Figure 4As shown, in one embodiment, along the direction from the lens barrel 100 toward the lens 200, the protrusion 120 extends to a certain length to form a stepped surface. The length of the protrusion 120 in the radial direction of the lens 200 is equal to the length of the clearance area 400. That is, the outer peripheral surface 301 of the second part of the positioning structure 300 and the outer peripheral surface 301 of the positioning part 310 are on the same horizontal plane. The outer peripheral surface 301 of the positioning part 310 and the protrusion 120 do not contact each other, and the area where the outer peripheral surface 301 of the positioning part 310 and the protrusion 120 do not contact each other is the clearance area 400. The outer peripheral surface 301 of the second part of the positioning structure 300 is set to fit against the outer peripheral surface 121 of the protrusion 120 to ensure the fixing effect between the positioning structure 300 and the lens barrel 100, so that the positioning structure 300 has a certain stability.

[0045] Continue reading Figure 3 and Figure 4 As shown, in one embodiment, the length of the protrusion 120 along the axial direction of the lens 200 is less than the length of the positioning structure 300. That is, part of the axial direction of the lens 200 is the clearance area 400 and part is the protrusion 120. This avoids the excessive extension of the length of the protrusion 120, which would affect the setting of the clearance area 400 and prevent it from buffering the compressive force on the lens 200, thus easily leading to the risk of the lens 200 being crushed and deformed by the compressive force.

[0046] Figure 5 This is another cross-sectional view of the lens 10 provided in another embodiment of this application. Figure 6 yes Figure 5 See the enlarged view of point A in the middle. Figure 5 and Figure 6 As shown, in one embodiment, along the direction of the lens barrel 100 toward the lens 200, the protrusion 120 extends to a certain length to form a stepped surface in the shape of a step. Along the direction of the positioning structure 300 toward the lens barrel 100, the positioning structure 300 includes a second protrusion 320, which extends to a certain length to form a stepped surface in the shape of a step. The outer peripheral surface 301 of the second part of the positioning structure 300 is the outer peripheral surface 301 of the second protrusion 320. The length of the protrusion 120 in the radial direction of the lens 200 is less than the length of the clearance area 400, that is, the outer peripheral surface 301 of the second protrusion 320 is attached to the outer peripheral surface of the protrusion 120, thereby fixing the positioning structure 300 and the lens barrel 100, and giving the positioning structure 300 a certain stability.

[0047] In one embodiment, the second protrusion 320 has a certain tilt angle. When the lens 10 is subjected to radial pressure from the lens 200, the clearance area 400 can provide a buffer for the radial pressure on the lens 200. Since the second protrusion 320 has a certain tilt, it can also provide a buffer for the radial pressure on the lens 200, so that the outer diameter of the lens 200 will not bear a large pressure, thereby improving the risk of the lens 200 breaking and deforming due to pressure.

[0048] Figure 7 This is another cross-sectional view of the lens 10 provided in another embodiment of this application. Figure 8 yes Figure 7 See the enlarged view of point A in the middle. Figure 7 and Figure 8 As shown, in one embodiment, the inner wall of the lens barrel 100 along the axial direction of the lens 200 is a continuous horizontal surface, that is, the inner wall of the lens barrel 100 is not provided with a protrusion. Along the direction of the positioning structure 300 toward the lens barrel 100, the positioning structure 300 includes a second protrusion 320. The second protrusion 320 extends to a certain length to form a stepped surface. The outer peripheral surface 301 of the second part of the positioning structure 300 is the outer peripheral surface 301 of the second protrusion 320. The outer peripheral surface 301 of the second protrusion 320 is attached to the inner wall of the lens barrel 100 to ensure the fixing effect between the positioning structure 300 and the lens barrel 100, so that the positioning structure 300 has a certain stability. The area where the outer peripheral surface 301 of the positioning structure 300 does not contact the inner wall of the lens barrel 100 forms a clearance area 400. When the lens 10 is subjected to radial compressive force from the lens 200, the clearance area 400 can provide a buffer for the radial compressive force on the lens 200, so that the outer diameter of the lens 200 will not bear a large compressive force, thereby improving the risk of the lens 200 breaking and deforming under compressive force and extending the service life of the lens 200.

[0049] Continue reading Figure 3 and Figure 4 As shown, in one embodiment, the positioning structure 300 further includes a spacer 330. Along the axial direction of the lens 200, the spacer 330 includes a bottom surface 331 and a top surface 332 disposed opposite to each other. A portion of the inner circumferential surface 302 of the positioning structure 300 serves as the top surface 332 of the spacer 330, and a portion of the outer circumferential surface 301 of the positioning structure 300 serves as the bottom surface 331 of the spacer 330. The top surface 332 of the spacer 330 is fitted against the outer circumferential surface of the lens 200 to ensure the fixing effect between the spacer 330 and the lens 200, giving the lens 200 a certain degree of stability and reliability relative to the positioning structure 300, and preventing the lens 200 from sliding or falling off in the axial direction.

[0050] Continue reading Figure 3and Figure 4 As shown, in one embodiment, the spacer 330 and the positioning part 310 are integral structures, and a positioning part 310 is formed simultaneously during integral molding, which facilitates processing. The spacer 330 and the positioning part 310 are combined to form a positioning structure 300, wherein the positioning part 310 is used to position the lens 200 in the radial direction, and the spacer 330 is used to position the lens 200 in the axial direction. The positioning part 310 and the spacer 330 together position the lens 200, which helps to improve the stability of the lens 200 in the lens barrel 100, prevent the lens 200 from falling off or sliding, thereby extending the service life of the lens 10.

[0051] In one embodiment, the spacer 330 and the positioning part 310 are separable independent structures. The positioning part 310 and the spacer 330 are sequentially arranged along the axial direction of the lens 200. The spacer 330 and the positioning part 310 can be fixedly connected by means of adhesive, snaps, or screws. The spacer 330 and the positioning part 310 can be separated for easy replacement and installation. The spacer 330 and the positioning part 310 together form a positioning structure 300, wherein the positioning part 310 is used for positioning the lens 200 in the radial direction, and the spacer 330 is used for positioning the lens 200 in the axial direction. The positioning part 310 and the spacer 330 together position the lens 200, which helps improve the stability of the lens 200 within the lens barrel 100, prevents the lens 200 from falling off or sliding, and thus extends the service life of the lens 10.

[0052] In one embodiment, the bottom surface 331 of the spacer 330 and the outer peripheral surface 301 of the positioning part 310 are located on the same horizontal plane along the radial direction of the lens 200, and the area between the outer peripheral surface 301 of the positioning part 310 and the inner wall of the lens barrel 100 is a clearance area 400. In another embodiment, the bottom surface 331 of the spacer 330 and the outer peripheral surface 301 of the positioning part 310 are staggered along the radial direction of the lens 200, and the spacer 330 protrudes from the positioning part 310 along the radial direction of the lens 200, and the area between the outer peripheral surface 301 of the positioning part 310 and the inner wall of the lens barrel 100 is a clearance area 400.

[0053] Figure 9 This is another cross-sectional view of the lens 10 provided in another embodiment of this application. (See also...) Figure 9As shown, in one embodiment, the positioning structure 300 is annular, and the inner peripheral surface 302 of the positioning structure 300 surrounds the outer peripheral surface 201 of the lens 200 in the radial direction. The positioning structure 300 and the lens barrel 100 are integral structures. When processing the lens barrel 100, a positioning structure 300 is integrally formed and a clearance area 400 is simultaneously formed on the lens barrel 100 to reduce the processing difficulty of the lens 10 and facilitate the assembly of the lens 10. When assembling the lens 10, the lens 200 can be directly installed into the positioning structure 300 to achieve the interference fit requirement between the lens 200 and the positioning structure 300, making the assembly of the lens 10 more convenient.

[0054] Continue reading Figure 9 As shown, in one embodiment, the positioning structure 300 and the lens barrel 100 are an integral structure. During the processing of the lens barrel 100, a positioning structure 300 is integrally formed and a clearance area 400 is simultaneously formed on the lens barrel 100. The bottom of the positioning structure 300 and the bottom of the lens barrel 100 are connected along the radial direction of the lens 200, that is, the bottom of the positioning structure 300 and the bottom of the lens barrel 100 are located on the same horizontal plane, which is beneficial to the stability of the lens barrel 100.

[0055] In one embodiment, the lens 200 is made of glass or plastic.

[0056] In one embodiment, the materials of the positioning structure 300 and the lens barrel 100 are made of alloy. The materials of the positioning structure 300 and the lens barrel 100 are similar and have similar coefficients of thermal expansion. When the lens 200 is subjected to radial compressive force, since the coefficient of thermal expansion of the positioning structure 300 is similar to that of the lens barrel 100, no large compressive force will be generated under thermal expansion and contraction, and it will not be transmitted to the outer diameter of the lens 200. At this time, the compressive force of the lens 200 mainly comes from the thermal expansion and contraction of a small section of the positioning structure 300, thereby improving the risk of breakage and deformation of the lens 200 and extending the service life of the lens 200.

[0057] Secondly, this application provides a camera device 20, which includes the aforementioned lens 10 for acquiring image information. This application also provides a terminal device 30. Figure 10 This is a schematic diagram of a vehicle 31 provided in one embodiment of this application. (See attached diagram.) Figure 10 As shown, the terminal device 30 includes the aforementioned camera device 20 and a terminal device body. The camera device 20 is disposed within the terminal device 30 body to acquire image information. It is understood that the terminal device 30 can be any device with image acquisition capabilities. For example, the terminal device 30 can be a camera, a car 31, etc. (Continue reading...) Figure 10In one embodiment, the terminal device 30 is a car 31, including a vehicle body 32 and a camera device 20 as described above. The camera device 20 is disposed within the vehicle body 32 and is used to acquire image information. It is understood that the structure of the terminal device 30 described above does not constitute a limitation on this embodiment; the terminal device 30 may include more or fewer components than described above, or different component arrangements.

[0058] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. 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 scope of the technical solutions of the embodiments of this application.

Claims

1. A lens, characterized in that, The lens includes a lens barrel, a lens housing within the lens barrel, and a positioning structure. The positioning structure is fixed to the inner wall of the lens barrel. The positioning structure includes an inner peripheral surface and an outer peripheral surface opposite to each other in the radial direction of the lens. At least a portion of the inner peripheral surface of the positioning structure is in contact with the outer peripheral surface of the lens. A clearance area is provided between a first portion of the outer peripheral surface of the positioning structure and the inner wall of the lens barrel. Along the radial direction, the projection of the clearance area at least partially coincides with the projection of the contact area between the inner peripheral surface of the positioning structure and the outer peripheral surface of the lens.

2. The lens according to claim 1, characterized in that, The portion of the positioning structure surrounding the outer peripheral surface of the lens is a positioning part, the positioning part is annular, the inner peripheral surface of the positioning part includes the portion of the inner peripheral surface of the positioning structure for fitting with the lens, the first portion of the outer peripheral surface of the positioning structure is the outer peripheral surface of the positioning part, and along the radial direction, at least a portion of the projection of the first portion coincides with the projection of the fitting area.

3. The lens according to claim 2, characterized in that, The clearance area is an annular groove surrounding the positioning part.

4. The lens according to claim 2, characterized in that, Along the radial direction of the lens, the size of the positioning part is larger than the size of the clearance area.

5. The lens according to any one of claims 2-4, characterized in that, The lens barrel includes a protrusion that protrudes from the inner wall of the lens barrel toward the lens. A second portion of the outer peripheral surface of the positioning structure fits into the protrusion. The first and second portions of the outer peripheral surface of the positioning structure are arranged along the axial direction of the lens.

6. The lens according to claim 5, characterized in that, The positioning structure further includes a spacer ring, the spacer ring having the second part on the outer peripheral surface of the lens in the radial direction, the spacer ring also having a top surface and a bottom surface opposite each other in the axial direction of the lens, the bottom surface of the lens in the axial direction being disposed on the top surface of the spacer ring, and the positioning part being disposed on the top surface of the spacer ring.

7. The lens according to claim 6, characterized in that, The spacer ring and the positioning part are integrally formed, and the outer peripheral surface of the spacer ring and the outer peripheral surface of the positioning part are flush in the radial direction.

8. The lens according to claim 6, characterized in that, The spacer ring and the positioning part are separate structures.

9. The lens according to claim 1, characterized in that, The positioning structure is a ring structure, and the positioning structure and the lens barrel are integrally formed. Along the axial direction of the lens, the bottom of the positioning structure is connected to the lens barrel.

10. A camera device, characterized in that, Including the lens as described in any one of claims 1-9, the camera device is used to acquire image information.

Images