Lens fixing module and lens

Abstract

The embodiment of the invention provides a lens fixing module and a lens. The lens fixing module comprises a limiting component, an installation groove is formed in one end face of the limiting component, an elastic component is arranged in the installation groove, and the limiting component is configured in the mode that the limiting component is located on one side of a lens, and the elastic component abuts against the lens. According to the lens fixing module, through cooperation of the limiting component and the elastic component, on one hand, the installation stability of the lens in the using process is ensured, and on the other hand, the problem that the lens is prone to deformation is solved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of lens fixing, and more specifically, relate to a lens fixing module and a lens. Background Art

[0002] In the design of lenses for high-impact environments, in order to ensure its reliability, a threaded clamping ring structure is currently commonly used to stabilize the lenses. Specifically, the lenses inside the lens are arranged in a stacked manner, and the distance between adjacent lenses is regulated by a spacing ring to ensure the optimization of optical performance. When all the lenses are assembled in place in sequence, the clamping ring is screwed into the lens barrel, and its powerful tightening force presses the outermost lens, thereby stabilizing the entire lens group.

[0003] However, it is worth noting that during the tightening process of the pressure ring, the lens will undergo micro-deformation due to pressure, affecting the PV value of the lens, and then adversely affecting the imaging quality of the entire optical system, causing the MTF (modulation transfer function) to decrease and increasing the risk of defective products.

[0004] In view of this, it is necessary to provide a new technical solution to solve the above technical problems. Summary of the invention

[0005] The purpose of this application is to provide a new technical solution for a lens fixing module and a lens.

[0006] In a first aspect, the present application provides a lens fixing module. The lens fixing module comprises:

[0007] A limiting component, one end surface of which is provided with a mounting groove, an elastic component is arranged in the mounting groove, and the lens fixing module is configured as follows: the limiting component is located at one side of the lens, and the elastic component abuts against the lens.

[0008] Optionally, the limiting component is formed with a positioning surface, and the positioning surface and the mounting groove are located on the same side of the limiting component; the positioning surface is used to abut against a fixing component, and the fixing component is the inner surface of the lens barrel or another limiting component arranged adjacent to the limiting component.

[0009] Optionally, the lens fixing module comprises a first limiting component, and the first limiting component is used to limit the first lens located at the innermost side of the lens barrel;

[0010] A first installation groove is formed on the first end surface of the first limiting component. A first elastic component is disposed in the first installation groove. The first elastic component abuts against the first lens.

[0011] Optionally, the first limiting component is formed with a first positioning surface located on the same side as the first installation groove, a first positioning matching surface is formed in the lens barrel, and the first positioning surface abuts against the first positioning matching surface.

[0012] Optionally, the second end surface of the first limiting component is formed with a first bearing surface, and the first bearing surface is used to bear against a second lens disposed adjacent to the first lens;

[0013] The lens fixing module also includes a second limiting component, a first end surface of the second limiting component is provided with a second installation groove, a second elastic component is arranged in the second installation groove, and the second elastic component abuts against a side of the second lens away from the first limiting component.

[0014] Optionally, the second limiting component is formed with a second positioning surface located on the same side as the second installation groove, and the second end surface of the first limiting component is formed with a second positioning matching surface, and the second positioning surface abuts against the second positioning matching surface.

[0015] Optionally, the second end surface of the second limiting component is formed with a second bearing surface, and the second bearing surface is used to bear against a third lens arranged adjacent to the second lens;

[0016] The lens fixing module also includes a third limiting component, a first end surface of the third limiting component is provided with a third installation groove, a third elastic component is arranged in the third installation groove, and the third elastic component abuts against a side of the third lens away from the second limiting component.

[0017] Optionally, a third positioning surface is formed on the first end surface of the third limiting component, and a third positioning matching surface is formed on the second end surface of the second limiting component, and the third positioning surface and the third positioning matching surface are in abutment with each other.

[0018] Optionally, the first limiting component includes a first limiting body, and the first limiting body is formed with a hollow portion;

[0019] An edge of the first end surface of the first limiting body extends toward a direction away from the second end surface of the first limiting body to form an extension portion, and an end surface of the extension portion is the first positioning surface;

[0020] The first end surface of the first limiting body is provided with the first mounting groove close to the inner side of the extending portion;

[0021] A portion of the second end surface of the first limiting body serves as the first bearing surface, and another portion of the second end surface serves as the second positioning matching surface.

[0022] Optionally, the second limiting component comprises a second limiting body, a first bearing body and a second bearing body, and the second limiting body, the first bearing body and the second bearing body are all cylindrical and connected to each other;

[0023] The first bearing body is located on a side of the second limiting body away from the first limiting component and is connected to the second limiting body, the inner diameter of the first bearing body is larger than the inner diameter of the second limiting body, the end surface of the first bearing body close to the second limiting body is the second bearing surface, and the end surface of the first bearing body away from the second limiting body is the third positioning matching surface;

[0024] The second supporting body is located on the side of the second limiting body close to the first limiting component and is connected to the second limiting body. The inner diameter of the second supporting body is larger than the inner diameter of the second limiting body. The end surface of the second supporting body close to the second limiting body is provided with the second mounting groove, and the end surface of the second supporting body away from the second limiting body is the second positioning surface.

[0025] In a second aspect, the embodiment of the present application further provides a lens, wherein the lens comprises a lens barrel and a lens fixing module as described in the first aspect, wherein the lens fixing module is disposed in the lens barrel.

[0026] According to the embodiments of the present application, the lens fixing module realizes double protection of the lens through the cooperation of the limiting component and the elastic component. The limiting component provides a stable support and clear boundary positioning for the lens, ensuring that the lens will not move or shift at will; while the elastic component uses its elastic characteristics to flexibly adapt to the shape and size differences of the lens to achieve a tight fit, which not only enhances the stability of the fixation, but also effectively avoids the deformation problem that the lens is prone to. The two complement each other and jointly ensure the stability of the lens during use.

[0027] Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0029] Figure 1 Shown is a structural cross-sectional view of a lens provided in an embodiment of the present application.

[0030] Figure 2 Shown is a structural exploded view of a lens provided in an embodiment of the present application.

[0031] Figure 3Shown is a structural diagram of the first limiting component provided in an embodiment of the present application.

[0032] Figure 4 The figure shows a structural diagram of the cooperation between the lens barrel and the first limiting component provided in an embodiment of the present application.

[0033] Figure 5 Shown is a structural diagram of a first limiting component and a second limiting component provided in an embodiment of the present application.

[0034] Figure 6 Shown is a structural diagram of the second limiting component and the third limiting component provided in an embodiment of the present application.

[0035] Figure 7 Shown is a schematic structural diagram of a lens barrel provided in an embodiment of the present application.

[0036] Description of reference numerals:

[0037] 1. first limiting component; 10. first mounting groove; 11. first elastic component; 12. first positioning surface; 13. first bearing surface; 14. second positioning matching surface; 15. first limiting body; 16. extension part;

[0038] 2. second limiting component; 20. second mounting groove; 21. second elastic component; 22. second positioning surface; 23. second bearing surface; 24. third positioning matching surface; 25. second limiting body; 26. first bearing body; 27. second bearing body;

[0039] 3. third limiting component; 30. third mounting groove; 31. third elastic component; 32. third positioning surface;

[0040] 4. lens barrel; 40. first positioning matching surface; 41. third bearing surface;

[0041] 51. First lens; 52. Second lens; 53. Third lens. DETAILED DESCRIPTION

[0042] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0043] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0044] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0045] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0046] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0047] The embodiment of the present application provides a lens fixing module. The lens fixing module is used to limit the installation position of the lens and fix the lens. The limiting component included in the lens fixing module is provided with an elastic component, and the elastic component is in direct contact with one side of the lens, thereby avoiding the technical problem in the prior art that the lens is directly pressed by the pressing ring or the spacer ring, causing the lens to deform.

[0048] Specifically, refer to Figure 1-Figure 6 The lens fixing module comprises: a limiting component, one end surface of which is provided with a mounting groove, an elastic component is arranged in the mounting groove, and the lens fixing module is configured as follows: the limiting component is located on one side of the lens, and the elastic component abuts against the lens.

[0049] In the embodiment of the present application, the lens fixing module mainly includes a limiting component and an elastic component. The limiting component is the basis of the entire lens fixing module, and the limiting component is responsible for positioning and supporting the lens. It can also be understood that: in use, the limiting component of the lens fixing module is located on one side of the lens to limit and fix the lens.

[0050] One end surface of the limiting component is provided with a mounting groove, which is used to accommodate and fix the elastic component. Specifically, the mounting groove is provided on one end surface of the limiting component, and its shape and size are designed according to the specific requirements of the elastic component and the lens. The mounting groove not only provides an installation space for the elastic component, but also controls the compression degree and rebound range of the elastic component through its shape and depth, thereby affecting the fixing effect on the lens.

[0051] It is worth mentioning that an elastic component is arranged in the mounting groove of the limiting component. The elastic component is usually made of a material with good elasticity and durability, such as rubber or silicone, to ensure that the lens can be stably fixed for a long time. Exemplarily, the elastic component can be an O-ring. Exemplarily, the elastic component is installed in the mounting groove of the limiting component, and is ensured not to fall off from the mounting groove by a suitable fixing method (such as gluing, snapping, embedding, etc.).

[0052] In this embodiment, the elastic component directly contacts the lens, and adapts to the shape and size differences of the lens through its elastic deformation, achieving a tight fit and a firm fixation. Since the elastic component is in direct contact with the lens, it utilizes its elastic deformation ability to flexibly adapt to the various shapes and size nuances of the lens. This design not only ensures a tight and seamless fit between the lens and the fixed module, but also provides a firm and reliable fixation effect, effectively preventing the lens from unnecessary deformation under long-term use or external influences, thereby ensuring the integrity and optical performance of the lens, for example, ensuring the imaging performance of the optical system (for example, the imaging performance can be measured by MTF) Stability ensures imaging quality. At the same time, the elastic component also has a certain buffering effect, which can protect the lens from external impact.

[0053] Therefore, in this embodiment, the lens fixing module realizes double protection of the lens through the cooperation of the limiting component and the elastic component. The limiting component provides a stable support and clear boundary positioning for the lens, ensuring that the lens will not move or deviate at will; while the elastic component uses its elastic characteristics to flexibly adapt to the shape and size differences of the lens to achieve a tight fit, which not only enhances the stability of the fixation, but also effectively avoids the deformation of the lens caused by uneven force (hard contact on both sides of the lens). The two complement each other and jointly ensure the stability of the lens during use.

[0054] In addition, the pressure on the lens can be achieved by adjusting the hardness or size of the elastic component to meet the force requirements of lenses of different thicknesses, avoiding or reducing the deformation of the lens due to pressure. At the same time, it can buffer the impact on the lens and prevent the lens from breaking.

[0055] It should be noted that the lens has two end faces arranged opposite to each other. During use, the lens fixing module can be set on one end face of the lens, that is, a limiting component and an elastic component are set on one end face of the lens, and the other end face of the lens is supported on a fixed supporting surface. In this way, the lens as a whole will not be subjected to additional pressure or distortion, thereby ensuring the uniformity of the force on the lens and avoiding the risk of deformation of the lens. In addition, this setting method also ensures the flatness of the optical surface of the lens and the stability of the optical performance.

[0056] Or in another specific use embodiment, the lens has two end faces arranged opposite to each other. In use, the lens fixing module can be arranged on both end faces of the lens, that is, the limiting components and elastic components are arranged on both sides of the lens. By arranging the lens fixing modules on both end faces of the lens, that is, realizing bilateral fixation, not only the stability and safety of the lens are significantly improved, but also when the lens is subjected to force from any direction, the force can be dispersed and absorbed by the fixing modules on both sides, thereby reducing the risk of excessive force on a single end face. In addition, the lens fixing modules arranged on the two end faces of the lens can greatly reduce the risk of deformation of the lens. This bilateral fixing design not only provides all-round support and stability for the lens, but also effectively limits the movement and deformation of the lens in all directions through the synergistic effect of the limiting components and elastic components on both sides.

[0057] After the lens fixing module is set on one end face of the lens, in order to ensure that the distance between adjacent lenses remains constant, it is further specified that the positioning surface of the limiting component needs to abut against the fixing component. In this way, when the lens fixing module is subjected to different pressures, the deformation amount of the elastic component remains consistent, ensuring that the distance between adjacent lenses remains unchanged.

[0058] Specifically, refer to Figure 1 , Figure 3-Figure 6 The limiting component is formed with a positioning surface, and the positioning surface and the mounting groove are located on the same side of the limiting component; the positioning surface is used to abut against a fixing component, and the fixing component is the inner surface of the lens barrel 4 or another limiting component arranged adjacent to the limiting component. Exemplarily, a positioning mating surface is arranged on the fixing component, and in use, the positioning surface of the limiting component abuts against the positioning mating surface of the fixing component.

[0059] In this embodiment, in order to ensure that the spacing between adjacent lenses remains constant during the lens assembly process, especially when multiple lenses are stacked in the lens barrel 4 for use, the structure of the lens fixing module is further defined.

[0060] When the lens fixing module is installed on one end face of the lens and is tightly fitted to the lens through the elastic component, the positioning surface serves as a stable reference point to limit the movement range of the lens fixing module under different pressures. Specifically, no matter which direction the lens fixing module is subjected to pressure, the positioning surface will maintain close contact with the fixing component, thereby ensuring that the deformation of the elastic component is constant after the elastic component contacts the lens and controls the distance between adjacent lenses. This design ensures that the degree of compression of the elastic component remains consistent even under different pressures, thereby ensuring that the distance between adjacent lenses does not change.

[0061] In addition, for the lens located at the innermost side of the lens barrel 4, the positioning surface on the lens fixing module is also closely abutted against the positioning matching surface of the lens barrel 4. This design ensures that even the innermost lens can be stably supported and positioned, thereby avoiding the problem of lens displacement or deformation caused by lack of support.

[0062] In a specific embodiment, referring to Figure 1-Figure 3 The lens fixing module comprises a first limiting component 1, and the first limiting component 1 is used to limit the first lens 51 located at the innermost side of the lens barrel 4;

[0063] A first installation groove 10 is formed on a first end surface of the first limiting component 1 . A first elastic component 11 is disposed in the first installation groove 10 . The first elastic component 11 abuts against the first lens 51 .

[0064] In this specific embodiment, during the actual installation process, the first lens 51 is placed at the innermost position of the lens barrel 4. In an optional embodiment, referring to Figure 7 and Figure 4 The lens barrel 4 is formed with a third bearing surface 41, and one side of the first lens 51 bears on the third bearing surface 41. In order to improve the processing accuracy, reduce the processing cost, and ensure that the first lens 51 can be closely attached to the lens barrel 4, and reduce the risk of deformation of the first lens 51, the first lens 51 adopts a local bearing method. For example, the third bearing surface 41 is an annular bearing surface, and the first lens 51 contacts the third bearing surface 41, which reduces the contact area between the first lens 51 and the third bearing surface 41. When the lens is subjected to external force, the stress will not be concentrated on the entire end surface, but dispersed on the contact points on the edge. This helps to reduce the risk of deformation of the lens due to stress concentration.

[0065] The first limiting component 1 is mounted on the other side of the lens so that the first elastic component 11 is in close contact with the end face of the lens. Due to the elastic characteristics of the elastic component, it can closely fit the surface of the lens and be fine-tuned according to the actual size of the lens to ensure the stability and adaptability of the fixation. Specifically, through the elastic deformation of the first elastic component 11, the first lens 51 is pressed against the third bearing surface 41 of the lens barrel 4.

[0066] The first limiting component 1 not only fixes the lens through the first elastic component 11, but also provides stable support for the lens through its own rigid structure. This dual role of limiting and supporting ensures that the position of the first lens 51 in the lens barrel 4 is stable and unchanged, and can maintain its original position and posture even when subjected to external forces. The first elastic component 11 uses its elastic characteristics to flexibly adapt to the shape and size differences of the first lens 51, effectively avoiding the deformation problem of the lens caused by uneven force.

[0067] In an optional embodiment, when a first lens 51 is disposed in the lens barrel 4 , the first limiting component 1 is a pressure ring provided with a first installation groove 10 , and a first elastic component 11 is disposed in the first installation groove 10 .

[0068] In this embodiment, by using a pressure ring as the first limiting component 1 and combining it with the first elastic component 11, the first lens 51 in the lens barrel 4 is firmly fixed, and the risk of deformation of the lens due to hard contact and tightening during installation is avoided.

[0069] In a specific embodiment, referring to Figure 4 The first limiting component 1 is formed with a first positioning surface 12 located on the same side as the first mounting groove 10 , and a first positioning matching surface 40 is formed in the lens barrel 4 , and the first positioning surface 12 abuts against the first positioning matching surface 40 .

[0070] In this embodiment, the first limiting component 1 is formed with a first positioning surface 12, and the first positioning surface 12 and the surface where the first installation groove 10 is located are not in the same horizontal plane. For example, in order to ensure the elastic deformation of the first elastic component 11 and to ensure that the first positioning surface 12 can abut against the first positioning matching surface 40, the first positioning surface 12 can be set slightly lower than the surface where the first installation groove 10 is located, such as Figure 4 shown.

[0071] The first positioning surface 12 on the first limiting component 1 can be a specific plane or curved surface, and its shape, size and position match the first positioning matching surface 40 in the lens barrel 4. When the first limiting component 1 is installed in the lens barrel 4, the first positioning surface 12 will play a role in guiding and positioning.

[0072] A first positioning mating surface 40 matching the first positioning surface 12 is correspondingly formed inside the lens barrel 4. Exemplarily, a step surface is formed on the inner wall of the lens barrel 4, and the step surface can be the first positioning mating surface 40. The shape, size and position of this mating surface are designed according to the first positioning surface 12 to ensure that the two can fit closely and seamlessly.

[0073] Therefore, in this embodiment, the design of the first positioning surface 12 and the first positioning matching surface 40 makes the installation process of the first limiting component 1 more accurate and controllable, reducing the error and deviation caused by improper installation. In addition, through the cooperation of the two, the position of the first limiting component 1 in the lens barrel 4 is effectively limited and fixed, ensuring the deformation consistency of the first elastic component 11 under different pressures, and ensuring the consistency of the spacing between the first lens 51 and the subsequent second lens 52.

[0074] In a specific embodiment, referring to Figure 1 , Figure 3 and Figure 5 The second end surface of the first limiting component 1 is formed with a first bearing surface 13, and the first bearing surface 13 is used to bear against a second lens 52 disposed adjacent to the first lens 51;

[0075] The lens fixing module also includes a second limiting component 2, a first end surface of the second limiting component 2 is provided with a second mounting groove 20, a second elastic component 21 is arranged in the second mounting groove 20, and the second elastic component 21 abuts against a side of the second lens 52 away from the first limiting component 1.

[0076] In this embodiment, a first bearing surface 13 is designed on the second end surface of the first limiting component 1 (i.e., the other end surface opposite to the first mounting groove 10). The shape, size and position of the first bearing surface 13 need to ensure that it can tightly receive the second lens 52. In other words, the first limiting component 1 is not only responsible for fixing the first lens 51, but also serves as a supporting structure for the second lens 52.

[0077] In order to fix the second lens 52 away from the side of the first limiting component 1, the second limiting component 2 is introduced. The first end surface of the second limiting component 2 is provided with a second mounting groove 20 for mounting the second elastic component 21. The material and performance of the second elastic component 21 are similar to those of the first elastic component 11, and both have good elasticity and durability. During the installation process, the second elastic component 21 will be placed in the second mounting groove 20 and tightly abut against the side of the second lens 52 away from the first limiting component 1.

[0078] Through the elastic deformation of the second elastic component 21, the second limiting component 2 can apply appropriate pressure to the second lens 52, so as to firmly fix it at a predetermined position in the lens barrel 4. At the same time, since the first bearing surface 13 of the first limiting component 1 provides additional support for the second lens 52, the positions of the two lenses in the lens barrel 4 are effectively limited and fixed. It can also be understood that this design ensures that the second limiting component 2 does not directly press on the second lens 52, but through the elastic deformation of the second elastic component 21, the second lens 52 is pressed on the first bearing surface 13 of the first limiting component 1, thereby avoiding the risk of deformation of the second lens 52 caused by hard contact and fastening.

[0079] In a specific embodiment, referring to Figure 3 and Figure 5 The second limiting component 2 is formed with a second positioning surface 22 located on the same side as the second mounting groove 20, and the second end surface of the first limiting component 1 is formed with a second positioning matching surface 14, and the second positioning surface 22 abuts against the second positioning matching surface 14.

[0080] In this embodiment, the second limiting component 2 is formed with a second positioning surface 22, and the second positioning surface 22 and the surface where the second mounting groove 20 is located are not in the same horizontal plane. For example, in order to ensure the elastic deformation of the second elastic component 21 and to ensure that the second positioning surface 22 can abut against the second positioning mating surface 14, the second positioning surface 22 can be set at a position lower than the surface where the second mounting groove 20 is located, such as Figure 5 shown.

[0081] Reference Figure 3 The second end surface of the first limiting component 1 is formed with a second positioning mating surface 14. In addition, the second end surface of the first limiting component 1 also needs to be formed with a first bearing surface 13. The first bearing surface 13 and the second positioning mating surface 14 can be the same curved surface or the same plane. For example, the second positioning mating surface 14 can be an extension surface of the first bearing surface 13. For example, referring to Figure 3 and Figure 5 The second positioning and matching surface 14 is located on the outer side of the first bearing surface 13 .

[0082] The second positioning surface 22 on the second limiting component 2 can be a specific plane or curved surface, and its shape, size and position match the second positioning matching surface 14 in the first limiting portion so as to abut against the second positioning matching surface 14 .

[0083] Therefore, in this embodiment, the design of the second positioning surface 22 and the second positioning matching surface 14 makes the installation process of the second limiting component 2 more accurate and controllable, reducing the errors and deviations caused by improper installation. In addition, through the abutment of the two, the deformation consistency of the second elastic component 21 under different pressures is guaranteed, and the consistency of the spacing between the first lens 51 and the second lens 52 can be guaranteed, as well as the consistency of the spacing between the second lens 52 and the subsequent third lens 53.

[0084] In a specific embodiment, referring to Figure 1 and Figure 6 The second end surface of the second limiting component 2 is formed with a second bearing surface 23, and the second bearing surface 23 is used to bear against a third lens 53 arranged adjacent to the second lens 52;

[0085] The lens fixing module also includes a third limiting component 3, a first end surface of the third limiting component 3 is provided with a third installation groove 30, a third elastic component 31 is arranged in the third installation groove 30, and the third elastic component 31 abuts against a side of the third lens 53 away from the second limiting component 2.

[0086] In this embodiment, the second limiting member 2 not only limits the position of the second lens 52, but also provides support for the adjacent third lens 53 through the second bearing surface 23 formed on its second end surface. The existence of the second bearing surface 23 makes the relative position relationship between the lenses more clear and reliable.

[0087] In order to further stabilize the position of the third lens 53, a third limiting component 3 is introduced into the lens fixing module. This component integrates a third elastic component 31 in the third mounting groove 30 of the first end face, thereby fixing and limiting the third lens 53.

[0088] Specifically, the introduction of the third elastic component 31 allows the third lens 53 to have a certain buffer space when subjected to external force, thereby avoiding the stress concentration and risk of damage and deformation caused by rigid contact. In addition, the third elastic component 31 is in contact with the third lens 53. This design allows the third lens 53 to be effectively buffered and dispersed through the third elastic component 31 when subjected to force from all directions, thereby ensuring the uniformity of the force on the third lens 53.

[0089] In a specific embodiment, referring to Figure 6 The first end surface of the third limiting component 3 is formed with a third positioning surface 32, and the second end surface of the second limiting component 2 is formed with a third positioning matching surface 24, and the third positioning surface 32 abuts against the third positioning matching surface 24.

[0090] In this embodiment, the first end surface of the third limiting component 3 is formed with a third positioning surface 32, and the third positioning surface 32 and the surface where the third mounting groove 30 is located are not in the same horizontal plane. For example, in order to ensure the elastic deformation of the third elastic component 31 and the third positioning surface 32 can abut against the third positioning matching surface 24, the setting position of the third positioning surface 32 can be slightly lower or slightly higher than the surface where the third mounting groove 30 is located. Figure 6 The third positioning surface 32 is arranged at a position slightly higher than the surface where the third mounting groove 30 is located.

[0091] The second end surface of the second limiting component 2 is formed with a third positioning matching surface 24, and the second end surface of the second limiting component 2 also needs to be formed with a second bearing surface 23, and the second bearing surface 23 and the third positioning matching surface 24 can be the same curved surface or the same plane, or the two are not in the same horizontal plane at all. Figure 6 The third positioning matching surface 24 is obviously higher than the second bearing surface 23 .

[0092] In this embodiment, the design of the third positioning surface 32 and the third positioning matching surface 24 makes the installation process of the third limiting component 3 more accurate and controllable, reducing the error and deviation caused by improper installation. In addition, through the abutment of the two, the deformation consistency of the third elastic component 31 under different pressures is guaranteed, and the consistency of the distance between the second lens 52 and the third lens 53 can be guaranteed.

[0093] Optionally, when the third lens 53 is used as the outermost lens in the lens barrel 4 , the third limiting component 3 is a pressing ring provided with a third mounting groove 30 , and a third elastic component 31 is provided in the third mounting groove 30 .

[0094] Optionally, when the first lens 51 and the second lens 52 are two adjacent lenses in the lens barrel 4, the first limiting component 1 and the second limiting component 2 are both spacer rings provided with mounting grooves, and elastic components are provided in the corresponding mounting grooves.

[0095] In a specific embodiment, referring to Figure 1-Figure 4 , the first limiting component 1 includes a first limiting body 15, and the first limiting body 15 is formed with a hollow portion;

[0096] An extension portion 16 is formed on the edge of the first end surface of the first limiting body 15 and extends in a direction away from the second end surface of the first limiting body 15 . The end surface of the extension portion 16 is the first positioning surface 12 .

[0097] The first end surface of the first limiting body 15 is provided with the first mounting groove 10 near the inner side of the extending portion 16;

[0098] A portion of the second end surface of the first limiting body 15 serves as the first bearing surface 13 , and another portion of the second end surface serves as the second positioning matching surface 14 .

[0099] In this embodiment, the first limiting component 1 includes a first limiting body 15, which is the main part of the first limiting component 1. The first limiting body 15 is formed with a hollow portion, which matches the optically effective area of ​​the lens to ensure normal light transmission.

[0100] Reference Figure 4 The portion extending from the edge of the first end face of the first limiting body 15 in the direction away from the second end face is called an extension portion 16. The end face of this extension portion 16 is designated as the first positioning surface 12, which means that when it is matched or installed with the lens barrel 4, this surface will play a role in positioning and alignment.

[0101] A first annular mounting groove 10 is provided on the first end surface of the first limiting body 15 , near the inner side of the extending portion 16 . The first mounting groove 10 is generally designed to mount, fix and connect the first elastic component 11 .

[0102] The second end face of the first limiting body 15 is divided into two parts, each of which has a different function. One part is used as the first bearing surface 13, which is used to support the second lens 52 to ensure the position accuracy of the adjacent lenses. The other part is used as the second positioning matching surface 14, which can prevent the deformation of the first elastic component 11 from changing when matching with the second limiting component 2, and ensure the consistency of the spacing between the first lens 51 and the second lens 52.

[0103] In this embodiment, the structure of the first limiting component 1 is limited so that the first limiting component 1 has multiple functions, including positioning the lens, supporting the lens, and installing the elastic component.

[0104] In a specific embodiment, referring to Figure 1 and Figure 2 ,as well as Figure 5 and Figure 6 The second limiting component 2 includes a second limiting body 25, a first supporting body 26 and a second supporting body 27, and the second limiting body 25, the first supporting body 26 and the second supporting body 27 are all cylindrical and connected to each other;

[0105] The first bearing body 26 is located at a side of the second limiting body 25 away from the first limiting component 1 and connected to the second limiting body 25. The inner diameter of the first bearing body 26 is greater than the inner diameter of the second limiting body 25. The end surface of the first bearing body 26 close to the second limiting body 25 is the second bearing surface 23, and the end surface of the first bearing body 26 away from the second limiting body 25 is the third positioning matching surface 24.

[0106] The second supporting body 27 is located on the side of the second limiting body 25 close to the first limiting component 1 and is connected to the second limiting body 25. The inner diameter of the second supporting body 27 is larger than the inner diameter of the second limiting body 25. The end surface of the second supporting body 27 close to the second limiting body 25 is provided with the second mounting groove 20, and the end surface of the second supporting body 27 away from the second limiting body 25 is the second positioning surface 22.

[0107] In this embodiment, the second limiting component 2 includes a second limiting body 25, a first supporting body 26 and a second supporting body 27. The second limiting body 25, the first supporting body 26 and the second supporting body 27 can be integrally formed, and the second limiting component 2 is an integral structural component.

[0108] The second limiting body 25 , the first supporting body 26 and the second supporting body 27 are all cylindrical and connected to each other, that is, the second limiting body 25 , the first supporting body 26 and the second supporting body 27 are all hollow to ensure normal transmission of light.

[0109] Reference Figure 6 In this embodiment, the first bearing body 26 is located on the side of the second limiting body 25 away from the first limiting component 1, and is tightly connected to the second limiting body 25 by some means (such as welding, threading or integral molding connection, etc.). Its inner diameter is larger than the second limiting body 25. This design provides sufficient supporting area for the second bearing surface 23, which can adapt to or carry lenses of larger sizes. In addition, it is also convenient to cooperate with the third limiting component 3 through the first bearing body 26.

[0110] The first supporting body 26 forms two surfaces, one of which is the second bearing surface 23, which is the end surface of the first supporting body 26 close to the second limiting body 25 to support the third lens 53. The other surface is the third positioning matching surface 24, which is located at one end of the first supporting body 26 away from the second limiting body 25, and is used to match the positioning surface of the third limiting component 3 to ensure the accuracy and stability of the overall structure.

[0111] Reference Figure 5 The second bearing body 27 is located on the side of the second limiting body 25 close to the first limiting component 1, and is also a cylindrical structure and connected to the second limiting body 25 by a connection method. Its inner diameter is also larger than the second limiting body 25. This design provides a sufficient positioning area for the second positioning surface 22 to match the second positioning matching surface 14 of the first limiting part, and it is also convenient to set the second installation groove 20 to fix the second elastic component 21.

[0112] Therefore, in this embodiment, the structural design and functional aspects of the second limiting body 25 are limited, so as to achieve stable connection and precise positioning of the second limiting component 2 in the overall structure, and provide a strong guarantee for the operation of the overall structure.

[0113] In a second aspect, an embodiment of the present application provides a lens, which includes a lens barrel 4 and a lens fixing module as described in the first aspect, wherein the lens fixing module is disposed in the lens barrel 4 .

[0114] In this embodiment, the lens is integrated with the lens fixing module, which is arranged inside the lens barrel 4. This design not only takes advantage of the lens fixing module in fixing and positioning the lens, but also further improves the overall performance and stability of the lens through the protection and support of the lens barrel 4.

[0115] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0116] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A lens fixing module, characterized in that: include: A limiting component, one end surface of which is provided with a mounting groove, an elastic component is arranged in the mounting groove, and the lens fixing module is configured as follows: the limiting component is located at one side of the lens, and the elastic component abuts against the lens.

2. The lens fixing module according to claim 1, characterized in that: The limiting component is formed with a positioning surface, the positioning surface and the mounting groove are located on the same side of the limiting component, the positioning surface is used to abut against a fixing component, and the fixing component is the inner surface of the lens barrel (4) or another limiting component arranged adjacent to the limiting component.

3. The lens fixing module according to claim 1 or 2, characterized in that: The lens fixing module comprises a first limiting component (1), wherein the first limiting component (1) is used to limit a first lens (51) located at the innermost side of the lens barrel (4); A first mounting groove (10) is formed on the first end surface of the first limiting component (1), a first elastic component (11) is arranged in the first mounting groove (10), and the first elastic component (11) abuts against the first lens (51).

4. The lens fixing module according to claim 3, characterized in that: The first limiting component (1) is formed with a first positioning surface (12) located on the same side as the first mounting groove (10), and a first positioning matching surface (40) is formed in the lens barrel (4), and the first positioning surface (12) abuts against the first positioning matching surface (40).

5. The lens fixing module according to claim 4, characterized in that: The second end surface of the first limiting component (1) is formed with a first bearing surface (13), and the first bearing surface (13) is used to bear against a second lens (52) arranged adjacent to the first lens (51); The lens fixing module also includes a second limiting component (2), a first end surface of the second limiting component (2) is provided with a second mounting groove (20), a second elastic component (21) is arranged in the second mounting groove (20), and the second elastic component (21) abuts against a side of the second lens (52) away from the first limiting component (1).

6. The lens fixing module according to claim 5, characterized in that: The second limiting component (2) is formed with a second positioning surface (22) located on the same side as the second mounting groove (20), and the second end surface of the first limiting component (1) is formed with a second positioning matching surface (14), and the second positioning surface (22) and the second positioning matching surface (14) are in abutment with each other.

7. The lens fixing module according to claim 6, characterized in that: The second end surface of the second limiting component (2) is formed with a second bearing surface (23), and the second bearing surface (23) is used to bear against a third lens (53) arranged adjacent to the second lens (52); The lens fixing module also includes a third limiting component (3), a first end surface of the third limiting component (3) is provided with a third mounting groove (30), a third elastic component (31) is arranged in the third mounting groove (30), and the third elastic component (31) abuts against a side of the third lens (53) away from the second limiting component (2).

8. The lens fixing module according to claim 7, characterized in that: The first end surface of the third limiting component (3) is formed with a third positioning surface (32), the second end surface of the second limiting component (2) is formed with a third positioning matching surface (24), and the third positioning surface (32) and the third positioning matching surface (24) are in abutment with each other.

9. The lens fixing module according to claim 6, characterized in that: The first limiting component (1) comprises a first limiting body (15), and the first limiting body (15) is formed with a hollow portion; An extension portion (16) is formed by extending an edge of the first end surface of the first limiting body (15) in a direction away from the second end surface of the first limiting body (15), and an end surface of the extension portion (16) is the first positioning surface (12); The first end surface of the first limiting body (15) is provided with the first mounting groove (10) near the inner side of the extending portion (16); A portion of the second end surface of the first limiting body (15) serves as the first bearing surface (13), and another portion serves as the second positioning matching surface (14).

10. The lens fixing module according to claim 8, characterized in that: The second limiting component (2) comprises a second limiting body (25), a first bearing body (26) and a second bearing body (27); the second limiting body (25), the first bearing body (26) and the second bearing body (27) are all cylindrical and connected to each other; The first bearing body (26) is located on a side of the second limiting body (25) away from the first limiting component (1) and is connected to the second limiting body (25); the inner diameter of the first bearing body (26) is larger than the inner diameter of the second limiting body (25); the end surface of the first bearing body (26) close to the second limiting body (25) is the second bearing surface (23); and the end surface of the first bearing body (26) away from the second limiting body (25) is the third positioning matching surface (24); The second supporting body (27) is located on the side of the second limiting body (25) close to the first limiting component (1) and is connected to the second limiting body (25); the inner diameter of the second supporting body (27) is larger than the inner diameter of the second limiting body (25); the end surface of the second supporting body (27) close to the second limiting body (25) is provided with the second mounting groove (20); the end surface of the second supporting body (27) away from the second limiting body (25) is the second positioning surface (22).

11. A lens, characterized in that: The lens comprises a lens barrel (4) and a lens fixing module as claimed in any one of claims 1 to 10, wherein the lens fixing module is arranged in the lens barrel (4).

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