Lens module and camera module

Abstract

The utility model provides a lens module and a camera module. The lens module comprises a lens barrel, a plurality of lenses and a plurality of module connecting pieces, the lens is bonded and fixed in the lens cone through glue; the module connecting piece is adhered to the outer wall of the lens barrel through the glue, and the module connecting piece comprises a VCM motor and an iris ring; a glue stopping convex point is formed on the inner wall, corresponding to the connecting position of the lens barrel and the at least one module connecting piece, of the lens barrel; the glue stopping salient point is matched with the side wall of the lens at the corresponding position to form a glue stopping mechanism; the thermal expansion coefficient CTE1 of the lens, the thermal expansion coefficient CTE2 of the glue and the thermal expansion coefficient CTE3 of the lens cone meet the following conditions: 0.9 < = CTE1 / CTE2 < = 1.1, and CTE2 < = CTE3; and the thermal expansion coefficient CTE5 of the module connecting piece and the thermal expansion coefficient CTE3 of the lens cone meet the following condition: 0.8 < CTE5 / CTE3 < 1.2. According to the lens module and the camera module provided by the utility model, the pulling effect of the variable aperture and / or the VCM motor on the lens can be reduced, and the stable quality of the lens module is ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of optical devices, and particularly relates to a lens module and a camera module. BACKGROUND

[0002] In recent years, the light and thin design of the camera of a portable electronic device has become an important trend in the design field. This change not only greatly improves the portability of the device, but also brings a better hand feeling experience to the user. However, as the camera module is continuously compressed, the structural space of each component inside the camera module is also reduced synchronously. In the case of extremely limited structural space, the strength problem of the components is increasingly prominent. In the case of reduced strength, the deformation stress caused by the mutual extrusion between the lens and the lens barrel and between the lenses, and the deformation caused by the pulling stress generated after the dispensing between the lens barrel and the external module is intensified, which obviously affects the performance of the entire camera and the production yield of the camera module. It is necessary to study the matching structure, material selection and assembly method of the camera module parts to avoid such problems and improve the overall performance and production yield of the camera. CONTENT OF THE UTILITY MODEL

[0003] In view of the deficiencies in the prior art, the utility model provides a lens module and a camera module, which can reduce the pulling effect of the variable aperture and / or VCM motor on the lens to ensure the stable quality of the lens module.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a lens module, which comprises a lens barrel, a plurality of lenses and a plurality of module connecting pieces; the lenses are fixed in the lens barrel by adhesive; the module connecting pieces are adhered to the outer wall of the lens barrel by the adhesive, and the module connecting pieces comprise a VCM motor and a variable aperture; the lens barrel forms a glue-stopping convex point on the inner wall corresponding to the connection position of at least one module connecting piece; the glue-stopping convex point and the side wall of the corresponding lens form a glue-stopping mechanism.

[0005] The thermal expansion coefficients CTE1 of the lenses, the thermal expansion coefficients CTE2 of the adhesive and the thermal expansion coefficients CTE3 of the lens barrel satisfy the following conditions: 0.9≤CTE1 / CTE2≤1.1 and CTE2≤CTE3.

[0006] The thermal expansion coefficients CTE5 of the module connecting pieces and the thermal expansion coefficients CTE3 of the lens barrel satisfy the following conditions: 0.8<CTE5 / CTE3<1.2.

[0007] According to one embodiment of the present application, the length L1 of the wall side of the glue-stopping convex point and the total length L of the glue-stopping convex point satisfy the following condition: L1

[0008] According to one embodiment of the present application, the glue stop convex point corresponding to the radius R1 of the lens, the glue stop convex point corresponding to the radius R2 of the lens, and the width W of the glue stop convex point satisfy: 8.2<(R1-R2) / W≤11.2.

[0009] According to one embodiment of the present application, the length L1 of the wall side of the glue stop convex point, the total length L of the glue stop convex point, and the length L2 of the wall side of the glue stop convex point satisfy: 0.23≤L1 / L<0.5, 2.1≤L1 / L2≤3.0.

[0010] According to one embodiment of the present application, the angle α of the glue stop convex point, the width W of the glue stop convex point, the length L1 of the wall side of the glue stop convex point, and the length L2 of the wall side of the glue stop convex point satisfy: α=180°-arctan(W / (L1-L2)).

[0011] According to one embodiment of the present application, the glue stop convex point corresponding to the lens and the glue contact surface angle β of the glue stop convex point satisfy: 120°≤β≤160°.

[0012] According to one embodiment of the present application, the cross-sectional shape of the glue stop convex point includes a trapezoidal shape, a rectangular shape, and a triangular shape.

[0013] According to one embodiment of the present application, the glue stop convex point corresponding to the lens and the glue stop convex point corresponding to the glue height H1 after the glue solidification satisfy: 0<H1 / L<0.6.

[0014] According to one embodiment of the present application, the elastic modulus E1 of the lens, the elastic modulus E2 of the glue between the lens and the lens barrel, and the elastic modulus E3 of the lens barrel satisfy: 0.9≤E1 / E3≤1.1.

[0015] The elastic modulus E3 of the lens barrel, the elastic modulus E4 of the glue between the module connecting member and the lens barrel, and the elastic modulus E5 of the module connecting member satisfy: 0.9≤E3 / E5≤1.1, 0.1≤E4 / E5≤0.2.

[0016] The utility model provides a kind of camera module, including the lens module described in any one embodiment of the present application;The lens module at least includes two pieces of the lens.

[0017] The utility model has the following beneficial effects due to the adoption of the above technical scheme:

[0018] The utility model discloses a lens module, which comprises a lens barrel, a lens and a variable aperture, wherein the lens is arranged in the lens barrel, the lens barrel is provided with a VCM motor, the lens is provided with a lens glue, the lens barrel is provided with a variable aperture glue, the lens barrel is provided with a stop glue convex point, the lens glue, the variable aperture glue and the stop glue convex point are arranged between the lens and the lens barrel, and the lens glue, the variable aperture glue and the stop glue convex point are arranged between the lens and the lens barrel. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be briefly introduced the drawing needed to be used in the embodiment description, obviously, the drawing in the following description is only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0020] Figure 1 It is the structure schematic diagram of the lens module of the embodiment one of the utility model;

[0021] Figure 2 It is Figure 1 The partial enlarged view of A area in it;

[0022] Figure 3 It is Figure 1 The parameter identification diagram of the partial enlarged view of A area;

[0023] Figures 4-6 It is the point glue performance comparison chart of the embodiment one of the utility model;

[0024] Figure 7 It is the structure schematic diagram of the lens module of the embodiment two of the utility model;

[0025] Figure 8 It is Figure 7 The enlarged view of B area;

[0026] Figure 9 It is the lens point glue structure schematic diagram of the embodiment three of the utility model;

[0027] Figure 10 It is the lens point glue structure schematic diagram of the embodiment four of the utility model.

[0028] EXPLANATION OF DRAWINGS:

[0029] 1-variable aperture;

[0030] 2-variable aperture glue;

[0031] 3-stop glue convex point;

[0032] 4-lens glue;

[0033] 5-lens;

[0034] 6-lens barrel;

[0035] 7-VCM motor glue;

[0036] 8-VCM motor. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0038] It should be noted that in the present specification, the expressions first, second, third and the like are only used to distinguish one feature from another feature, and do not represent any limitation on the features.

[0039] It should also be understood that the words "comprise", "comprising", "have", "having", "contain", "containing", and / or "include" when used in this specification indicate the presence of the stated features, elements and / or components but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof. In addition, when expressions such as "at least one of" appear after a list of enumerated features, the expression is intended to mean "any one of the enumerated features or any combination of one or more of the enumerated features". In addition, when describing embodiments of the present application, the word "may" means "one or more embodiments of the present application". Furthermore, the word "exemplary" is intended to mean "example or illustration".

[0040] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that the terms should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0041] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The features, principles and other aspects of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0042] Exemplary Embodiments

[0043] Reference will now be made to Figures 1-10In an exemplary embodiment of the present application, a lens module includes a lens barrel 6, a plurality of lenses 5, and a plurality of module connecting components; the lenses 5 are fixed in the lens barrel 6 by adhesive; the module connecting components are adhered to the outer wall of the lens barrel 6 by the adhesive, and the module connecting components include a VCM motor 8 and a variable aperture 1; the lens barrel 6 forms a glue-stopping convex point 3 on the inner wall corresponding to the position connected with at least one of the module connecting components; the glue-stopping convex point 3 cooperates with the side wall of one of the lenses 5 at the corresponding position to form a glue-stopping mechanism; the thermal expansion coefficient CTE1 of the lenses 5, the thermal expansion coefficient CTE2 of the adhesive, and the thermal expansion coefficient CTE3 of the lens barrel 6 satisfy: 0.9≤CTE1 / CTE2≤1.1, CTE2≤CTE3; the thermal expansion coefficient CTE5 of the module connecting components and the thermal expansion coefficient CTE3 of the lens barrel 6 satisfy: 0.8<CTE5 / CTE3<1.2. The glue-stopping mechanism can effectively control the flow range of the adhesive, which is conducive to reducing the risk of adhesive overflow to the lens-accepting surface of the lens 5 after glue spraying assembly, and improving the consistency of the performance of the lens after assembly. The expansion coefficients of the lenses 5 and the lens adhesive 4 are similar and less than or equal to the expansion coefficient of the lens barrel 6, which can realize the synchronous expansion and contraction of the lenses 5 and the adhesive when the temperature changes, avoid the extrusion of the lens barrel 6 and the lenses 5 to cause plastic deformation and reduce the performance of the lens. When the expansion coefficients of the materials of the module connecting components and the lens barrel are controlled within a given ratio, the synchronous expansion and contraction of the two can reduce the pulling effect of the variable aperture 1 and / or the VCM motor 8 on the lens during glue dispensing, and ensure the quality stability of the lens module.

[0044] In an exemplary embodiment, the length L1 of the wall-adjacent side of the glue-stopping convex point 3 and the total length L of the glue-stopping convex point 3 satisfy: L1<L; and further preferably 0<L1 / L<0.3. The length of the glue-stopping convex point 3 determines the height of the stored adhesive, and reduces the possibility of adhesive overflow.

[0045] In an exemplary embodiment, the radius R1 of the gear corresponding to the lens 5, the radius R2 of the lens-accepting position corresponding to the lens 5, and the width W of the glue-stopping convex point 3 satisfy: 8.2<(R1-R2) / W≤11.2. The width of the glue-stopping convex point 3 determines the blocking range of the adhesive, which indirectly enhances the strength of the lens barrel 6 and is conducive to reducing assembly deformation.

[0046] In an exemplary embodiment, the length L1 of the wall-adjacent side of the glue-stopping convex point 3, the total length L of the glue-stopping convex point 3, and the length L2 of the wall-remote side of the glue-stopping convex point 3 satisfy: 0.23≤L1 / L<0.5, 2.1≤L1 / L2≤3.0. This is conducive to enhancing the structure of the lens barrel 6, changing stray light paths, and reducing the risk of stray light of the lens barrel 6 and the cooperating lenses 5.

[0047] In an exemplary embodiment, the angle a of the glue stop convex point 3, the width W of the glue stop convex point 3, the length L1 of the wall side of the glue stop convex point 3, and the length L2 of the wall side away from the glue stop convex point 3 satisfy: a = 180°-arctan(W / (L1-L2)). Preferably, 45°≤a≤90°. The large-angle glue stop convex point 3 is beneficial to reduce the flow range of the glue and promote the curing of the glue.

[0048] In an exemplary embodiment, the angle β of the glue stop convex point 3 corresponding to the contact surface of the lens 5 and the glue satisfies: 120°≤β≤160°. This angle is beneficial to improve the stability of the lens 5 during assembly, increase the contact area of the lens 5 and the glue, and enhance the adhesion.

[0049] In an exemplary embodiment, the cross-sectional shape of the glue stop convex point 3 includes a trapezoidal shape, a rectangular shape, and a triangular shape. The shape of the glue stop convex point 3 changes the stray light path and reduces the risk of stray light in the lens barrel 6.

[0050] In an exemplary embodiment, the glue height H1 of the glue stop convex point 3 corresponding to the glue between the lens 5 and the lens barrel 6 after curing satisfies: 0<H1 / L<0.6. Preferably, 0.3≤H1 / L≤0.5. Controlling the glue height is beneficial to reduce the risk of glue overflow while ensuring the adhesion of the glue, and ensure the assembly stability.

[0051] In an exemplary embodiment, the elastic modulus E1 of the lens 5, the elastic modulus E2 of the glue corresponding to the glue between the lens 5 and the lens barrel 6, and the elastic modulus E3 of the lens barrel 6 satisfy: 0.9≤E1 / E3≤1.1; preferably, E2 / E3=0.1. The elastic modulus E3 of the lens barrel 6, the elastic modulus E4 of the glue between the module connecting member and the lens barrel 6, and the elastic modulus E5 of the module connecting member satisfy: 0.9≤E3 / E5≤1.1, 0.1≤E4 / E5≤0.2. Since the modulus of the lens glue 4 is much lower than that of the lens 5 and the lens barrel 6, when the lens barrel 6 is deformed due to external force, the glue can be stretched and deformed to prevent gaps between the lens barrel 6 and the lens 5, and to prevent the lens 5 from being eccentric and reduce the performance of the lens. When the lens barrel 6 is assembled with the variable aperture 1 / VCM motor 8, the modulus of the module glue is much lower than that of the lens barrel 6 and the module connecting member. When external force is applied to the module to deform the module, the glue can be deformed to ensure the stability of the lens and the quality of the lens.

[0052] The utility model provides a kind of camera module, including the lens module described in any embodiment of the present application;The lens module at least includes two pieces of the lens 5.

[0053] The camera module in the embodiment includes a lens and a module connecting component; the lens includes a lens barrel 6, a lens 5, a spacer, a spacer ring, and a compression ring; the module connecting component includes a VCM motor 8 and a variable aperture 1, etc. Specifically, the variable aperture 1 is connected to the outer wall of the lens barrel 6 through variable aperture glue 2, and the VCM motor 8 is connected to the outer wall of the lens barrel 6 through VCM motor glue 7; the lens 5 corresponding to the stop glue convex point 3 is fixed to the inside of the lens barrel 6 through lens glue 4. By dispensing glue between the lens 5 and the lens barrel wall, adjusting the ratio of the material properties between the lens barrel 6 and the variable aperture 1 and / or the VCM motor 8, the pulling effect of the variable aperture 1 and / or the VCM motor 8 on the lens is reduced to ensure the stability of the lens module quality.

[0054] The specific embodiment of a lens module suitable for the above embodiment is further described below with reference to the accompanying drawings. Specific embodiment 1

[0056] Figures 1-6 The structural diagram of a lens module embodiment 1 of the present application is shown in the figure. The lens module includes a lens barrel 6, a plurality of lenses 5, and a plurality of module connecting components; the lenses 5 are fixedly connected to the inside of the lens barrel 6 through glue; the module connecting components are connected to the outer wall of the lens barrel 6 through the glue, and the module connecting components include a VCM motor 8 and a variable aperture 1; the lens barrel 6 forms a stop glue convex point 3 on the inner wall corresponding to the connection position of the variable aperture 1; the stop glue convex point 3 cooperates with the sidewall of a corresponding lens 5 to form a glue stopping mechanism; the thermal expansion coefficient CTE1 of the lens 5, the thermal expansion coefficient CTE2 of the glue, and the thermal expansion coefficient CTE3 of the lens barrel 6 satisfy the following conditions: 0.9≤CTE1 / CTE2≤1.1, CTE2≤CTE3; the thermal expansion coefficient CTE5 of the module connecting component and the thermal expansion coefficient CTE3 of the lens barrel 6 satisfy the following conditions: 0.8<CTE5 / CTE3<1.2.

[0057] As shown in Table 1, the basic parameter table of the lens module of embodiment 1 is shown in the table, wherein the total length L of the stop glue convex point 3, the length L1 of the side of the stop glue convex point 3 away from the wall surface, the length L2 of the side of the stop glue convex point 3 close to the wall surface, the width W of the stop glue convex point 3, the height H1 of the glue after curing between the stop glue convex point 3 and the lens 5 and the lens barrel 6, the radius R1 of the stop glue convex point 3 corresponding to the lens 5, and the radius R2 of the stop glue convex point 3 corresponding to the bearing position of the lens 5 are all in millimeters (mm); the angle α of the stop glue convex point 3 and the angle β of the stop glue convex point 3 corresponding to the lens 5 are all in degrees (°).

[0058] Example 1 L (mm) 0.43 L1 (mm) 0.1 L2 (mm) 0.04 W (mm) 0.06 H1 (mm) 0.16 R1 (mm) 7.09 R2 (mm) 6.51 β(°) 154.6 Lens CTE1 / Glue CTE2 / Barrel CTE3 1 / 1 / 1.1 Lens E1 / Glue E2 / Barrel E3 10 / 1 / 10 Barrel CTE3 / Module CTE4 1 / 1 Glue Circumference Angle (°) 360

[0059] Table 1

[0060] The lens module in embodiment 1 satisfies:

[0061] L1 / L = 0.23; 0 < L1 / L < 0.3.

[0062] (R1-R2) / W = 9.67; 8.2 < (R1-R2) / W ≤ 11.2.

[0063] L1 / L = 0.23, L1 / L2 = 2.5; 0.23 ≤ L1 / L < 0.5, 2.1 ≤ L1 / L2 ≤ 3.0.

[0064] H1 / L = 0.37; 0 < H1 / L < 0.6.

[0065] E1 / E3 = 1; 0.9 ≤ E1 / E3 ≤ 1.1.

[0066] The lens barrel 6 glue stop convex point 3 is completely placed in the lens barrel 6, and the effect of preventing glue overflow is achieved.

[0067] The utility model provides a kind of camera module, including the lens module described in this embodiment;The lens module includes seven pieces of the lens 5.

[0068] Figures 4-6 The glue dispensing performance comparison chart of a lens module of embodiment 1 is shown, wherein, Figure 4 is the original state chart, Figure 5 is the lens performance chart of glue stop convex point 3 being arranged at the relative position of the first piece of lens near the object side, Figure 6 is the lens performance chart when lens barrel material CTE / variable aperture material CTE≈1;It can be seen that the pulling amount of variable aperture 1 on lens barrel 6 in radial direction after L1 gear lens 5 glue dispensing is reduced, when lens barrel material CTE / variable aperture material CTE≈1, the pulling amount of variable aperture 1 on lens barrel 6 in radial direction is obviously reduced, and the performance stability of module lens can be effectively improved. Specific embodiment 2

[0070] Figures 7-8 , it is the structure schematic view of a kind of lens module embodiment 2 of the application, a kind of lens module its structure is basically same with embodiment one, its difference lies in: glue stop convex point 3 is located at the relative position of the sixth piece of lens near the object side, and VCM motor 8 can be reduced to the pulling of lens barrel 6.

[0071] As shown in Table 2, the basic parameter table of the lens module of Example 2, wherein the total length L of the glue stop convex point 3, the length L1 of the wall side of the glue stop convex point 3, the length L2 of the wall side away from the glue stop convex point 3, the width W of the glue stop convex point 3, the height H1 of the glue after curing corresponding to the glue between the lens 5 and the lens barrel 6, the radius R1 of the lens 5 corresponding to the glue stop convex point 3, and the radius R2 of the lens 5 corresponding to the glue stop convex point 3 are all in millimeters (mm); the angle α of the glue stop convex point 3 and the angle β of the glue stop convex point 3 corresponding to the lens 5 are all in degrees (°).

[0072]

[0073]

[0074] Table 2

[0075] The lens module in Example 2 satisfies:

[0076] L1 < L.

[0077] (R1-R2) / W = 11.13; 8.2 < (R1-R2) / W ≤ 11.2.

[0078] L1 / L = 0.3, L1 / L2 = 3; 0.23 ≤ L1 / L < 0.5, 2.1 ≤ L1 / L2 ≤ 3.0.

[0079] H1 / L = 0.4; 0 < H1 / L < 0.6.

[0080] E1 / E3 = 1; 0.9 ≤ E1 / E3 ≤ 1.1.

[0081] Figure 7 The structure diagram of a lens module of Example 2 is shown, and it can be seen that the inner wall of the lens barrel 6 corresponding to the position of the sixth lens 5 close to the object side connected to the VCM motor 8 forms a glue stop convex point 3, reducing the pulling of the VCM motor 8 on the lens barrel 6. Specific embodiment 3

[0083] Please refer to Figure 1 and Figure 9 , Figure 9 is a lens 5 dispensing structure diagram of a lens module of Example 4, a lens module whose structure is basically the same as that of Example 1, the difference being that the lens 5 dispensing glue is not dispensing in a full circle, and the glue is symmetrically distributed on the circumference.

[0084] As shown in Table 3, the basic parameter table of the lens module of Example 3, wherein the total length L of the glue stop convex point 3, the length L1 of the glue stop convex point 3 on the wall surface side, the length L2 of the glue stop convex point 3 away from the wall surface side, the width W of the glue stop convex point 3, the height H1 of the glue after curing corresponding to the glue between the lens 5 and the lens barrel 6, the radius R1 of the lens 5 corresponding to the glue stop convex point 3, and the radius R2 of the lens 5 corresponding to the glue stop convex point 3 are all in millimeters (mm); the angle α of the glue stop convex point 3 and the angle β of the lens 5 corresponding to the glue stop convex point 3 are all in degrees (°).

[0085]

[0086]

[0087] Table 3

[0088] The lens module in Example 3 satisfies:

[0089] L1<L.

[0090] (R1-R2) / W=8.29;8.2<(R1-R2) / W≤11.2.

[0091] L1 / L=0.27,L1 / L2=2.4;0.23≤L1 / L<0.5,2.1≤L1 / L2≤3.0.

[0092] H1 / L=0.4;0<H1 / L<0.6.

[0093] E1 / E3=1;0.9≤E1 / E3≤1.1.

[0094] Figure 9 A lens 5 dispensing structure schematic diagram of Example 3 is shown, and it can be seen that the lens 5 dispensing glue is not dispensing in a full circle, and the glue is symmetrically distributed in four arc segments on the circumference. Specific embodiment 4

[0096] Please refer to Figure 1 and Figure 10 , Figure 10 A lens 5 dispensing structure schematic diagram of Example 4 of the lens module of the present application is shown, and a lens module has basically the same structure as Example 1, and the difference is that the lens 5 dispensing glue is not dispensing in a full circle, and the glue is asymmetrically distributed on the circumference.

[0097] As shown in Table 4, the basic parameter table of the lens module of Example 4 is shown, wherein the total length L of the glue-stopping convex point 3, the length L1 of the wall surface side of the glue-stopping convex point 3, the length L2 of the wall surface side away from the glue-stopping convex point 3, the width W of the glue-stopping convex point 3, the height H1 of the glue after curing corresponding to the glue between the lens 5 and the lens barrel 6, the radius R1 corresponding to the lens 5 of the glue-stopping convex point 3, and the radius R2 corresponding to the lens 5 of the glue-stopping convex point 3 are all in millimeters (mm); the angle a of the glue-stopping convex point 3 and the angle b of the glue-stopping convex point 3 corresponding to the lens 5 are all in degrees (°).

[0098] Example 4 L (mm) 0.46 L1 (mm) 0.13 L2 (mm) 0.06 W (mm) 0.06 H1 (mm) 0.19 R1 (mm) 7.1 R2 (mm) 6.5 β(°) 156 Lens CTE1 / Glue CTE2 / Barrel CTE3 1 / 1 / 1.1 Lens E1 / Glue E2 / Barrel E3 10 / 1 / 10 Barrel CTE3 / Module CTE4 1 / 1 Glue Circumference Angle (°) 240

[0099] Table 4

[0100] The lens module in Example 4 satisfies:

[0101] L1 < L.

[0102] (R1-R2) / W = 10; 8.2 < (R1-R2) / W < 11.2.

[0103] L1 / L = 0.28, L1 / L2 = 2.17; 0.23 < L1 / L < 0.5, 2.1 < L1 / L2 < 3.0.

[0104] H1 / L = 0.41; 0 < H1 / L < 0.6.

[0105] E1 / E3 = 1; 0.9 < E1 / E3 < 1.1.

[0106] Figure 10 A lens 5 dispensing structure schematic diagram of Example 4 is shown, and the lens 5 dispensing glue is not a whole circle dispensing, and the glue is asymmetrically distributed in three arc-shaped sections on the circumference.

[0107] In addition, as shown in Table 5, the basic parameter table of the lens module of Examples 1-4 is shown, wherein the total length L of the glue-stopping convex point 3, the length L1 of the wall surface side of the glue-stopping convex point 3, the length L2 of the wall surface side away from the glue-stopping convex point 3, the width W of the glue-stopping convex point 3, the height H1 of the glue after curing corresponding to the glue between the lens 5 and the lens barrel 6, the radius R1 corresponding to the lens 5 of the glue-stopping convex point 3, and the radius R2 corresponding to the lens 5 of the glue-stopping convex point 3 are all in millimeters (mm); the angle a of the glue-stopping convex point 3 and the angle b of the glue-stopping convex point 3 corresponding to the lens 5 are all in degrees (°).

[0108]

[0109] Table 5

[0110] The above only is the preferred embodiment of the present application, and does not use to limit the present application, any modification, improvement, equivalent replacement, etc. made within the spirit and principle of the present application, should be included in the protection scope of the present application.

Claims

1. A lens module, comprising a lens barrel, a plurality of lenses and a plurality of module connecting components; the lenses are fixed in the lens barrel by adhesive; the module connecting components are adhered to the outer wall of the lens barrel by the adhesive, the module connecting components comprise a VCM motor and a variable aperture; characterized in that, The lens barrel forms a glue-stopping convex point on the inner wall corresponding to the connecting position of at least one of the module connecting members; the glue-stopping convex point and the side wall of the corresponding lens constitute a glue-stopping mechanism; The thermal expansion coefficients CTE1 of the lens, CTE2 of the glue and CTE3 of the lens barrel satisfy: 0.9≤CTE1 / CTE2≤1.1, CTE2≤CTE3; The thermal expansion coefficients CTE5 of the module connecting member and the thermal expansion coefficients CTE3 of the lens barrel satisfy: 0.8<CTE5 / CTE3<1.

2.

2. The lens module according to claim 1, wherein, The length L1 of the wall-adjacent side of the glue-stopping convex point and the total length L of the glue-stopping convex point satisfy: L1<L.

3. The lens module according to claim 1, wherein, The radius R1 of the gear position corresponding to the glue-stopping convex point, the radius R2 of the abutting position corresponding to the glue-stopping convex point, the width W of the glue-stopping convex point satisfy: 8.2<(R1-R2) / W≤11.

2.

4. The lens module according to claim 1, wherein, The length L1 of the wall-adjacent side of the glue-stopping convex point, the total length L of the glue-stopping convex point and the length L2 of the wall-remote side of the glue-stopping convex point satisfy: 0.23≤L1 / L<0.5, 2.1≤L1 / L2≤3.

0.

5. The lens module according to claim 1, wherein, The angle α of the glue-stopping convex point, the width W of the glue-stopping convex point, the length L1 of the wall-adjacent side of the glue-stopping convex point and the length L2 of the wall-remote side of the glue-stopping convex point satisfy: α=180°-arctan(W / (L1-L2)).

6. The lens module according to claim 1, wherein, The angle β of the contact surface between the glue-stopping convex point and the glue corresponding to the lens satisfies: 120°≤β≤160°.

7. The lens module according to claim 1, wherein, The cross-sectional shape of the glue-stopping convex point includes trapezoid, rectangle and triangle. 8.The lens module according to claim 1, wherein, The glue height H1 of the glue corresponding to the lens and the lens barrel after the glue is cured satisfies: 0<H1 / L<0.

6. 9.The lens module according to claim 1, wherein, The elastic modulus E1 of the lens, the elastic modulus E2 of the glue corresponding to the lens and the lens barrel and the elastic modulus E3 of the lens barrel satisfy: 0.9≤E1 / E3≤1.1; The elastic modulus E3 of the lens barrel, the elastic modulus E4 of the glue between the module connecting member and the lens barrel and the elastic modulus E5 of the module connecting member satisfy: 0.9≤E3 / E5≤1.1, 0.1≤E4 / E5≤0.

2.

10. A camera module, comprising: The lens module includes the lens barrel according to any one of claims 1-9; the lens module includes at least two lenses.

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