An optical lens assembly and lens

Abstract

The application discloses an optical lens assembly and a lens, comprising a sleeve component and an optical lens; the sleeve component is respectively formed with a sleeve protrusion, a sleeve groove and a sleeve abutting portion along a radial direction; the sleeve protrusion has a first protrusion surface and a second protrusion surface opposite to a lens side portion of the optical lens in the radial direction; the sleeve groove comprises a first side wall and a second side wall, the first side wall is connected with the second protrusion surface, and the second side wall is connected with the sleeve abutting portion, wherein the first side wall and the second side wall are oppositely arranged; the sleeve abutting portion has a first abutting surface; the optical lens is at least partially abutted on the first abutting surface in the direction of an optical axis towards one side of the sleeve component, and the lens side portion is bonded with the first protrusion surface and / or the second protrusion surface. Through the scheme, the stability of the lens assembly can be ensured.

Description

Technical Field

[0001] This application generally relates to the field of optical technology. More specifically, this application relates to an optical lens assembly and a lens. Background Technology

[0002] Lens elements within a lens are used for focusing light, correcting aberrations, adjusting color, and controlling the amount of light. These lenses are assembled inside the lens, and lens assembly involves combining and assembling multiple lenses according to specific design requirements and optical principles to form a lens assembly with specific optical functions. It is a crucial step in lens manufacturing, involving lens selection, positioning, fixing, and overall optical performance tuning.

[0003] These lenses can be either plastic or glass. When using glass lenses, they can be individually attached to the lens barrel, which requires less precision in their outer diameter. However, when there is insufficient space inside the lens, glass lenses need to be assembled with plastic or other lenses within the lens barrel. Understandably, plastic lenses have higher molding precision, and conventional assembly ensures their assembly accuracy. Because glass lenses have lower molding precision, their outer diameter fluctuates more significantly. When these glass lenses are assembled, they may exhibit eccentricity and tilting, potentially leading to performance instability.

[0004] In view of this, there is an urgent need to provide a solution for optical lens assembly and lens to ensure the stability of lens assembly. Utility Model Content

[0005] In order to at least solve one or more of the technical problems mentioned above, this application proposes a solution for an optical lens assembly and a lens in several aspects.

[0006] In a first aspect, this application provides an optical lens assembly, including a sleeve component and an optical lens; wherein the sleeve component has a sleeve protrusion, a sleeve groove, and a sleeve abutment formed along the radial direction, wherein the sleeve protrusion has a first protruding surface and a second protruding surface opposite to a lens side portion of the optical lens in the radial direction; the sleeve groove includes a first sidewall and a second sidewall, the first sidewall of the sleeve groove is connected to the second protruding surface, and the second sidewall of the sleeve groove is connected to the sleeve abutment, wherein the first sidewall and the second sidewall are disposed opposite to each other; the sleeve abutment has a first abutment surface; the optical lens at least partially abuts against the first abutment surface on one side of the sleeve component in the direction of the optical axis, and the lens side portion is bonded to the first protruding surface and / or the second protruding surface.

[0007] In some embodiments, the distance between the surface of the second protrusion and the optical axis is a first distance, the distance between the side portion of the lens and the optical axis is a second distance, and the first distance and the second distance satisfy: 1.01<D / d<1.05, where D is the first distance, and d is the second distance.

[0008] In some embodiments, the side of the optical lens facing away from the sleeve member in the direction of the optical axis has a first optical surface, wherein the first optical surface includes a first lens bearing surface and a first optical surface, and a third distance between the first lens bearing surface and the surface of the first protrusion along the optical axis direction satisfies: c>0.1mm, where c is the third distance.

[0009] In some embodiments, the optical lens assembly further comprises a bearing member, the bearing member is disposed on the side of the optical lens away from the sleeve member in the direction of the optical axis, and the bearing member is in abutting contact with the first optical surface; the minimum distance from the optical axis in the contact area between the bearing member and the first optical surface is a first contact dimension, the maximum distance from the optical axis in the contact area between the first abutting surface and the optical lens is a second contact dimension, and the first contact dimension and the second contact dimension satisfy: When d<5mm, then ; When d 5mm, then , wherein, is the first contact dimension, is the second contact dimension.

[0010] In some embodiments, a second abutting surface is formed on the side of the sleeve member facing away from the first abutting surface, the distance between the first abutting surface and the second abutting surface is the sleeve thickness, and the sleeve thickness satisfies: 1.5<B / ( )<4.0, where B is the sleeve thickness, is the first contact dimension, is the second contact dimension.

[0011] In some embodiments, the optical lens has an optical bearing portion distributed along the radial direction, and the thickness of the optical bearing portion and the center thickness of the optical lens satisfy: 1< / <3.8, where is the thickness of the optical bearing portion, is the center thickness of the optical lens.

[0012] In some embodiments, the sleeve protrusion has a sleeve protrusion thickness in the radial direction, and the sleeve protrusion thickness satisfies: h>0.3mm and 0.5<h / B<2, where h is the sleeve protrusion thickness, and B is the sleeve thickness.

[0013] In some embodiments, the thickness of the optical bearing portion and the third distance satisfy: 2.0< / c<4.0, is the thickness of the optical bearing portion, and c is the third distance.

[0014] In a second aspect, the present application provides a lens, comprising the optical lens assembly according to any one of the first aspect.

[0015] With the optical lens assembly and the lens provided as above, the solution of the embodiments of the present application can ensure the assembly stability of the lens, thereby ensuring the yield of the lens. Brief Description of the Drawings

[0016] The above and other objects, features and advantages of the exemplary embodiments of the present application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present application are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals denote the same or corresponding parts, in which: Figure 1a shows an exemplary structural diagram of the optical lens assembly installed in the lens barrel according to the first embodiment of the present application; Figure 1b shows an exemplary structural diagram of the optical lens assembly according to the first embodiment of the present application; Figure 2a shows an exemplary structural diagram including dimensions of the optical lens assembly according to the first embodiment of the present application; Figure 2b shows an exemplary structural diagram of the optical lens assembly installed in the lens barrel according to the first embodiment of the present application; Figure 2c shows an exemplary structural diagram including dimensions of the sleeve member according to the first embodiment of the present application; Figure 3a shows an exemplary structural diagram of the optical assembly installed in the lens barrel according to the second embodiment of the present application; Figure 3b shows an exemplary structural diagram of the optical assembly according to the second embodiment of the present application; Figure 4a shows an exemplary structural diagram including dimensions of the optical lens assembly according to the second embodiment of the present application; Figure 4b shows an exemplary structural diagram of the optical lens assembly installed in the lens barrel according to the second embodiment of the present application; Figure 4c An exemplary structural diagram including the dimensions of the sleeve component according to a second embodiment of this application is shown; Figure 5a An exemplary structural diagram of an optical component installed inside a lens barrel according to a third embodiment of this application is shown; Figure 5b An exemplary structural diagram of an optical component according to a third embodiment of this application is shown; Figure 6a An exemplary structural diagram containing the dimensions of the optical lens assembly according to the third embodiment of this application is shown; Figure 6b An exemplary structural diagram of an optical lens assembly installed inside a lens barrel according to a third embodiment of this application is shown; Figure 6c An exemplary structural diagram including the dimensions of the sleeve component according to a third embodiment of this application is shown.

[0017] Tag name 10 - Sleeve component, 101 - First abutting surface, 102 - Second abutting surface, 11 - Sleeve protrusion, 111 - First protruding surface, 112 - Second protruding surface, 113 - Third protruding surface, 12 - Sleeve groove, 121 - First sidewall, 122 - Second sidewall, 123 - Bottom of groove, 13 - Sleeve abutting part, 20 - Optical lens, 201 - Lens side, 21 - First optical surface, 211 - First lens bearing surface, 212 - First optical surface, 22 - Second optical surface, 221 - Second optical edge surface, 222 - Second optical intermediate surface, 30 - Bearing component, 41 - Front abutting side, 42 - Front sidewall. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0019] It should be understood that the terms "comprising" and "including" as used in the specification and claims of this application indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0020] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this specification and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this specification and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0021] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0022] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0023] In some embodiments, the optical lens assembly includes a sleeve component 10 and an optical lens 20; wherein the sleeve component 10 has a sleeve protrusion 11, a sleeve groove 12, and a sleeve abutment portion 13 formed along the radial direction, wherein the sleeve protrusion 11 has a first protruding surface 111 and a second protruding surface 112 opposite to the lens side portion 201 of the optical lens 20 in the radial direction; the sleeve groove 12 includes a first sidewall 121 and a second sidewall 122, the first sidewall 121 being connected to the second protruding surface 112 and the second sidewall 122 being connected to the sleeve abutment portion 13, wherein the first sidewall 121 and the second sidewall 122 are disposed opposite to each other; the sleeve abutment portion 13 has a first abutment surface 101; a small portion of the optical lens 20 abuts against the first abutment surface 101 on one side of the sleeve component 10 in the direction of the optical axis, and the lens side portion 201 is bonded to the first protruding surface 111 and / or the second protruding surface 112.

[0024] Optionally, in the direction of the optical axis, the sleeve component 10 may have a side facing the object side and a side facing the image side. The aforementioned sleeve protrusion 11, sleeve groove 12 and sleeve abutment 13 may be formed on the side of the sleeve component 10 facing the object side or on the side facing the image side.

[0025] Figure 1a An exemplary structural diagram of an optical lens assembly installed inside a lens barrel according to a first embodiment of this application is shown. Figure 1bAn exemplary structural diagram of an optical lens assembly according to a first embodiment of this application is shown. It will be understood that... Figure 1a The optical component can be positioned at the front of the lens barrel, and the aforementioned sleeve protrusion 11, sleeve groove 12, and sleeve abutment 13 can be formed on the object-facing side of the sleeve component 10. Figure 1b It can be Figure 1a The exemplary structural diagram corresponding to the optical components in the diagram will be used in conjunction with the following. Figure 1a and Figure 1b The structure of this optical component will be described.

[0026] Optionally, the sleeve can be used to fix and position the lens and ensure optical coaxiality. In some embodiments, the sleeve component 10 can be symmetrically arranged around the optical axis. Further, a first abutting surface 101 and a second abutting surface 102 can be formed at both ends of the sleeve component 10 along the direction of the optical axis of the optical lens assembly, wherein the first abutting surface 101 can face the optical lens 20, and the second abutting surface 102 can face away from the optical lens 20.

[0027] Optionally, the sleeve component 10 can be an annular structure. In the radial direction of the sleeve assembly, the side of the sleeve component 10 facing the object side can be formed with a sleeve protrusion 11, a sleeve groove 12, and a sleeve abutment 13. The sleeve abutment 13 can be close to the optical axis, the sleeve protrusion 11 can be far away from the optical axis, and the sleeve groove 12 can be disposed between the sleeve protrusion 11 and the sleeve abutment 13.

[0028] Optionally, the sleeve protrusion 11 may include a first protruding surface 111, a second protruding surface 112, and a third protruding surface 113. Specifically, the first protruding surface 111 may be perpendicular to the optical axis, and the second protruding surface 112 may be on the side facing the optical axis. It is understood that when the optical lens 20 and the sleeve component 10 are assembled together, the second protruding surface 112 may be on the side facing the optical lens 20. In some embodiments, the third protruding surface 113 may be on the side opposite to the second protruding surface 112, which may be on the side away from the optical axis. In some embodiments, the third protruding surface 113 may be at least partially inclined, thereby facilitating the assembly of the sleeve assembly and the interior of the lens.

[0029] Optionally, the sleeve abutment 13 may have a first abutment surface 101, which may be the side facing the object side and may be configured as a plane perpendicular to the optical axis. When the optical lens 20 is mounted on the sleeve component 10, the sleeve abutment 13 may abut against the end of the optical lens 20 facing the image side.

[0030] Optionally, the sleeve groove 12 may have a first sidewall 121, a second sidewall 122, and a groove bottom 123. The first sidewall 121 and the second sidewall 122 may be arranged opposite to each other, and are respectively located at both ends of the groove bottom 123. The first sidewall 121 may be the side away from the optical axis, and the second sidewall 122 may be the side closer to the optical axis.

[0031] Optionally, the sleeve groove 12 can be disposed between the sleeve protrusion 11 and the sleeve abutment 13. Specifically, the first sidewall 121 can be connected to the second protrusion surface 112, and the second sidewall 122 can be connected to the sleeve abutment 13.

[0032] Optionally, the optical lens 20 may have a first optical surface 21, a second optical surface 22, and a lens side portion 201, wherein the first optical surface 21 may be a side away from the sleeve component 10 in the direction of the optical axis, and the second optical surface 22 may be a side facing the sleeve component 10 in the direction of the optical axis.

[0033] It should be understood that, in the first embodiment, the first optical surface 21 can be the side facing the object side, the second optical surface 22 can be the side facing the image side, and the lens side 201 can be the side perpendicular to the optical axis. When the optical lens 20 is mounted on the sleeve assembly, the second optical surface 22 of the optical lens 20 can at least partially abut against the first abutment surface 101, and the lens side 201 can be the side facing the second protruding surface 112.

[0034] Furthermore, the first optical surface 21 may include a first lens bearing surface 211 and a first optical surface 212 (e.g., Figure 2a As shown in the figure, the first lens bearing surface 211 can be disposed in the outer region of the first optical surface 21, and the first optical surface 212 can be disposed in the inner region of the first optical surface 21. The second optical surface 22 may include a second optical edge surface 221 and a second optical intermediate surface 222.

[0035] Optionally, the optical lens 20 and the sleeve component 10 are bonded together. Specifically, the optical lens 20 and the sleeve component 10 can be bonded together using ultraviolet-cured adhesives (such as UV adhesives), epoxy resins, or anaerobic adhesives.

[0036] Optionally, a gap is provided between the lens side portion 201 and the second raised surface 112 to facilitate adhesive bonding. Specifically, the lens side portion 201 can be bonded to the first raised surface 111 and / or the second raised surface 112 using adhesive. In some embodiments, the adhesive can be applied to both the first raised surface 111 and the lens side portion 201 to achieve bonding. In other embodiments, the adhesive can be applied to both the second raised surface 112 and the lens side portion 201 to achieve bonding. In still other embodiments, the adhesive can be applied to the first raised surface 111, the second raised surface 112, and the lens side portion 201 to achieve bonding between the optical lens 20 and the sleeve component 10.

[0037] It is understandable that the lens side 201 and the second raised surface 112 can be bonded by dispensing adhesive into the gap between the lens side 201 and the second raised surface 112. By providing a sleeve groove 12 between the sleeve protrusion 11 and the sleeve abutment 13, the adhesive can flow along the second raised surface 112 to the first sidewall 121 of the sleeve groove 12, thereby increasing the contact area of ​​the adhesive and improving the dispensing surface of the optical lens 20, thus enhancing the bonding strength.

[0038] Optionally, the adhesive can flow into the sleeve groove 12 through the gap between the lens side 201 and the second protruding surface 112, thereby expanding the adhesive application surface of the optical lens 20 while also accommodating excess adhesive.

[0039] It is understandable that assembling the sleeve component 10 and the optical lens 20 together forms an optical lens assembly. Furthermore, this optical lens assembly can be positioned inside the lens, thereby avoiding the eccentricity caused by fluctuations in the outer diameter tolerance of the optical lens 20, thus ensuring the eccentricity sensitivity of the optical lens 20. Moreover, the optical lens 20 is fixed to the sleeve component 10 with adhesive, thereby limiting the displacement of the optical lens 20. Compared to conventional lens assembly, this reduces the adverse effects of changes in the outer diameter of the optical lens 20 on its fit with the lens barrel component, improving lens performance yield. During adhesive application, the adhesive can pass through the lens side 201 and the first protruding surface 111 and / or the second protruding surface 112. Simultaneously, the sleeve groove 12 helps to enlarge the adhesive application surface of the optical lens 20 and can accommodate excess adhesive.

[0040] In some embodiments, the optical lens assembly is assembled inside the lens barrel, and the interior of the lens barrel may include a front abutment side 41 and a front sidewall 42, wherein the front abutment side 41 can limit the optical lens assembly in a direction parallel to the optical axis, and the front sidewall 42 can limit the optical lens assembly in a direction perpendicular to the optical axis.

[0041] In some embodiments, when the optical lens assembly is assembled at the front position inside the lens barrel (as Figure 1a shown in the figure), the first optical surface 21 can at least partially abut against the front end abutment side 41 of the lens barrel, and the third protruding surface 113 can at least partially abut against the front end side wall 42.

[0042] It can be understood that when installing the optical lens assembly, the optical lens 20 can be first assembled onto the sleeve member 10, and then the optical lens 20 and the sleeve member 10 can be fixed by dispensing adhesive, so as to form the optical lens assembly. Then the fixed optical lens assembly is assembled into the interior of the lens barrel, and other lenses and spacers can be sequentially assembled in place, and finally the retaining ring is installed and fixed by dispensing adhesive to assemble into a lens. It should be understood that since the optical lens assembly is the first single component to be assembled, it usually has a relatively small outer diameter, and its specific parameters will be described in detail later in conjunction with Table 1.

[0043] Figure 2a shows an exemplary structural diagram of the optical lens assembly according to the first embodiment of the present application. As Figure 2a shown in the figure, the distance between the second protruding surface 112 and the optical axis is a first distance, the distance between the lens side portion 201 and the optical axis is a second distance, and the first distance and the second distance satisfy: 1.01<D / d<1.05, where D is the first distance, and d is the second distance.

[0044] Optionally, the second protruding surface 112 may be parallel to the optical axis. In other embodiments, the second protruding surface 112 may be arranged to be inclined with respect to the optical axis. It can be understood that at this time, the first distance D may be the shortest distance between the second protruding surface 112 and the optical axis. Optionally, the lens side portion 201 may be parallel to the optical axis. Further, the lens side portion 201 may be arranged to be inclined with respect to the optical axis. It can be understood that at this time, the second distance d may be the shortest distance between the lens side portion 201 and the optical axis.

[0045] Optionally, the first distance D and the second distance d may satisfy: 1.01<D / d<1.05. It can be understood that when the first distance D is much larger than the second distance d, the shaking range of the glass lens in the sleeve will be excessively large, resulting in a large deviation between the optical axis of the glass lens and the optical axis of the lens barrel, and the eccentricity cannot be guaranteed. Further, when the difference between the first distance D and the second distance d is excessively small, the fluidity of the glue will be deteriorated, so that the glue cannot be ensured to be in full contact with the sleeve component 10 and the lens side portion 201, and there is a risk of the lens falling off. Therefore, by setting the first distance D and the second distance d to ensure D / d is within a certain range, while ensuring a certain gap between the first distance D and the second distance d, the glue can be better bonded to the second protruding surface 112 and the lens side portion 201, which can ensure the assembly eccentricity and the reliability of the lens at the same time.

[0046] Optionally, the optical lens 20 has a first optical surface 21 on a side facing away from the sleeve component 10 in the direction of the optical axis, wherein the first optical surface 21 includes a first lens bearing surface 211 and a first optical surface 212, and a third distance between the first lens bearing surface 211 and the first protruding surface 111 satisfies: c>0.1mm, where c is the third distance.

[0047] Optionally, the optical lens 20 may include a first optical surface 21 and a second optical surface 22, the first optical surface 21 may be an end facing the object side, and the second optical surface 22 may be an end facing the image side. In some embodiments, the first optical surface 21 may include a first lens bearing surface 211 and a first optical surface 212, wherein the first lens bearing surface 211 may be disposed in an outer region of the first optical surface 21; the first optical surface 212 may be disposed in an inner region of the first optical surface 21. Optionally, a third distance c between the first optical surface 21 and the first protruding surface 111 satisfies: c>0.1mm.

[0048] By setting the third distance c, it is possible to prevent the glue from flowing to the bearing surface of the lens, ensure the tilt accuracy when the lens is assembled with other single components, and make it meet the assembly process requirements of lens assembly.

[0049] In some embodiments, the optical lens 20 has an optical bearing portion distributed along the radial direction, and the thickness of the optical bearing portion and the center thickness of the optical lens 20 satisfy: 1< / <3.8, where, is the thickness of the optical bearing portion, is the center thickness of the optical lens 20.

[0050] Optionally, the optical support portion can be the edge region of the lens, and the optical support portion can surround the outer side of the middle region of the optical lens. The optical lens 20 can include a first optical surface 21 and a second optical surface 22. The first optical surface 21 can be the end facing the object side, and the second optical surface 22 can be the end facing the image side. Further, the first optical surface 21 can include a first lens support surface 211 and a first optical surface 212, wherein the first lens support surface 211 can be disposed in the outer region of the first optical surface 21; and the first optical surface 212 can be disposed in the inner region of the first optical surface 21. In some embodiments, the second optical surface 22 can include a second optical edge surface 221 and a second optical intermediate surface 222.

[0051] Optionally, the optical support portion is the area between the aforementioned first lens support surface 211 and the second optical edge surface 221, and the center of the optical lens 20 can be the portion of the aforementioned first optical surface 212 and the second optical intermediate surface 222 near the optical axis. It is understood that the thickness of the optical support portion... This can be the shortest distance between the first lens bearing surface 211 and the second optical edge surface 221; the center thickness of the optical lens 20 It can be the shortest distance between the first optical surface 212 and the second optical intermediate surface 222.

[0052] Optionally, / It can satisfy: 1 ​​< / <3.8. Among them, The thickness can be determined by the optical support component. The center thickness can be the optical lens 20.

[0053] By setting the thickness of the optical support and the center thickness of the optical lens 20, the lens can meet the thickness-to-thin ratio during the design stage, preventing a large proportion of fragments during the trial production process, thereby ensuring the lens's yield and improving its strength.

[0054] Figure 2b An exemplary structural diagram of an optical lens assembly installed inside a lens barrel according to a first embodiment of this application is shown.

[0055] Optionally, the optical lens assembly further includes a support member 30, which is disposed on the side of the optical lens 20 away from the sleeve member 10 in the direction of the optical axis, and the support member 30 abuts against the first optical surface 21 to form an optical lens contact surface; it is understood that in the first embodiment, when the optical lens assembly is assembled in the front position inside the lens barrel, the support member 30 can be the front end of the lens barrel, and the front end abutting side 41 of the lens barrel can abut against the first optical surface 21.

[0056] The minimum distance from the contact surface of the optical lens to the optical axis is the first contact dimension, and the maximum distance from the first abutment surface 101 to the optical axis in the contact area with the optical lens 20 is the second contact dimension. The first contact dimension and the second contact dimension satisfy: When d < 5mm, then When d 5mm, then ; in, The first contact size, This is the second contact dimension.

[0057] Optionally, in the area where the supporting component 30 contacts the first optical surface 21, its minimum distance to the optical axis can be the first contact dimension. Optionally, the contact area between the first abutment surface 101 and the optical lens 20 can form a bushing contact surface, and the shortest distance from this bushing contact surface to the optical axis can be a second optical dimension. .

[0058] Optionally, the first contact size and the second contact size The size can be determined based on the second distance d. Specifically, when the second distance d < 5mm, Among them, the second contact size It can be larger than the first contact size. .

[0059] By setting the second contact size and the first contact size, when the optical lens 20 is projected along the optical axis, the areas where the first optical surface 21 and the second optical surface 22 and other components are supported overlap during projection. This avoids stress concentration caused by uneven force on both sides of the lens and improves the surface accuracy of the lens.

[0060] Figure 2c An exemplary structural diagram including the dimensions of the sleeve component according to the first embodiment of this application is shown.

[0061] Optionally, a second abutting surface 102 is formed on a side of the sleeve member 10 facing away from the first abutting surface 101, the distance between the first abutting surface 101 and the second abutting surface 102 is the sleeve thickness, and the sleeve thickness satisfies: 1.5<B / ( )<4.0, where B is the sleeve thickness, is the second contact dimension, is the first contact dimension.

[0062] In the first embodiment, the side of the sleeve member 10 facing the object side may have a first abutting surface 101, the side of the sleeve member 10 opposite to the first abutting surface 101 may have a second abutting surface 102, and the sleeve thickness of the sleeve member 10 may be the distance between the first abutting surface 101 and the second abutting surface 102.

[0063] Optionally, the sleeve thickness of the sleeve member 10 and the first contact dimension and the second contact dimension may satisfy the following relationship: 1.5<B / ( )<4.0, where, may be the first contact dimension, may be the second contact dimension.

[0064] Optionally, the larger the sleeve thickness, the smaller the flatness of the plane where the supporting region is located, which can reduce the influence caused by the inclination of the sleeve member 10 when assembling the sleeve member 10.

[0065] In the first embodiment, the sleeve protrusion 11 has a sleeve protrusion thickness h in the radial direction, and the sleeve protrusion thickness h satisfies: h>0.3mm and 0.5<h / B<2. Optionally, the sleeve protrusion 11 may have a sleeve protrusion thickness h along the radial direction. Further, the sleeve protrusion thickness h may be the distance between the second protrusion surface 112 and the third protrusion surface 113. It should be understood that the sleeve protrusion thickness h may be greater than 0.3mm. Optionally, the relationship between the sleeve protrusion thickness h and the sleeve thickness of the sleeve member 10 may satisfy the following formula: 0.5<h / B<2.

[0066] By setting the sleeve protrusion thickness h and the thickness B of the sleeve member 10, the uniformity of the lens barrel thickness can be ensured, which is beneficial to improving the circular runout and coaxiality of the inner diameter of the lens barrel. Optionally, the thickness of the optical supporting portion and the third distance c satisfy: 2.0< / c<4.0.

[0067] Through the above arrangement, it is helpful to ensure that the adhesive fully bonds the glass lens and the sleeve, if If the / c value is too high, insufficient glue will be used, resulting in weak bonding strength. If the / c value is too small, it increases the risk of glue overflowing onto the inner wall of the lens barrel.

[0068] Table 1 shows the parameters of the optical lens dimensions in the first embodiment of this application. It is understood that the optical lens assembly can be disposed at the front end of the camera's lens barrel, the first distance D can be 6.54 mm, the second distance d can be 6.46 mm, D / d can be 1.012, and the first contact size... It can be 2.86mm, the second contact size. It can be 3.06mm. The distance can be 0.2mm, and the third distance c can be 0.12mm. / c can be 3.5, the thickness of the optical support. The thickness can be 0.42mm, the center thickness of optical lens 20. It can be 1.41mm. / It can be 3.36, the thickness B can be 0.47mm, the sleeve protrusion thickness h can be 0.28mm, h / B can be 1.68, B / ( The value can be 2.35.

[0069] Table 1:

[0070] Figure 3a An exemplary structural diagram of an optical component installed inside a lens barrel according to a second embodiment of this application is shown. Figure 3b An exemplary structural diagram of an optical component according to a second embodiment of this application is shown.

[0071] In the second embodiment, the structure of the sleeve component 10 and the optical lens 20, as well as their contact relationship, are the same as or similar to those in the first embodiment. Optionally, the sleeve component 10 can be symmetrically arranged around the optical axis. Further, a first abutting surface 101 and a second abutting surface 102 can be formed at both ends of the sleeve component 10 along the direction of the optical axis of the optical lens assembly, wherein the first abutting surface 101 can face the optical lens 20, and the second abutting surface 102 can face away from the optical lens 20. It is understood that in the second embodiment, the optical assembly can be disposed in the middle position inside the lens barrel, the first abutting surface 101 can face the object side, and the second abutting surface 102 can face the image side.

[0072] In the radial direction of the sleeve assembly, the sleeve component 10 may sequentially form a sleeve protrusion 11, a sleeve groove 12, and a sleeve abutment 13, wherein the sleeve abutment 13 may be close to the optical axis, the sleeve protrusion 11 may be far from the optical axis, and the sleeve groove 12 may be disposed between the sleeve protrusion 11 and the sleeve abutment 13. The aforementioned sleeve protrusion 11, sleeve groove 12, and sleeve abutment 13 may face towards the object side.

[0073] Optionally, the sleeve protrusion 11 may include a first protruding surface 111, a second protruding surface 112, and a third protruding surface 113. Specifically, the first protruding surface 111 may be perpendicular to the optical axis, and the second protruding surface 112 may be on the side facing the optical axis. It is understood that when the optical lens 20 and the sleeve component 10 are assembled together, the second protruding surface 112 may be on the side facing the optical lens 20. Optionally, the third protruding surface 113 may be on the side opposite to the second protruding surface 112, which may be on the side away from the optical axis. Optionally, the sleeve abutment portion 13 may have a first abutment surface 101. In the second embodiment, the first abutment surface 101 may be on the side facing the object side, which may be set as a plane perpendicular to the optical axis. When the optical lens 20 is mounted on the sleeve component 10, the sleeve abutment portion 13 may abut against the end of the optical lens 20 facing the image side.

[0074] Optionally, the sleeve groove 12 may have a first sidewall 121, a second sidewall 122, and a groove bottom 123. The first sidewall 121 and the second sidewall 122 may be disposed opposite to each other, respectively located at both ends of the groove bottom 123, wherein the first sidewall 121 may be the side away from the optical axis, and the second sidewall 122 may be the side closer to the optical axis. Optionally, the sleeve groove 12 may be disposed between the sleeve protrusion 11 and the sleeve abutment portion 13. Specifically, the first sidewall 121 may be connected to the second protrusion surface 112, and the second sidewall 122 may be connected to the sleeve abutment portion 13.

[0075] It should be understood that, in the second embodiment, the first optical surface 21 can be the side facing the object side, the second optical surface 22 can be the side facing the image side, and the lens side 201 can be the side perpendicular to the optical axis. When the optical lens 20 is mounted on the sleeve assembly, the second optical surface 22 of the optical lens 20 can at least partially abut against the first abutment surface 101, and the lens side 201 can be the side facing the second protruding surface 112.

[0076] Furthermore, the first optical surface 21 may include a first lens bearing surface 211 and a first optical surface 212 (e.g., Figure 4aAs shown in the figure, the first lens bearing surface 211 can be disposed in the outer region of the first optical surface 21, and the first optical surface 212 can be disposed in the inner region of the first optical surface 21. The second optical surface 22 may include a second optical edge surface 221 and a second optical intermediate surface 222. Optionally, the optical lens 20 and the sleeve component 10 are bonded together. Optionally, a gap is provided between the lens side portion 201 and the second raised surface 112 to facilitate adhesive bonding. Specifically, the lens side portion 201 can be bonded to the first raised surface 111 and / or the second raised surface 112 by adhesive. In some embodiments, the adhesive can be disposed on the first raised surface 111 and the lens side portion 201 to achieve bonding. In other embodiments, the adhesive can be disposed on the second raised surface 112 and the lens side portion 201 to achieve bonding. In some other embodiments, the adhesive may be applied to the first raised surface 111, the second raised surface 112, and the lens side 201 to achieve bonding between the optical lens 20 and the sleeve component 10.

[0077] It is understandable that assembling the sleeve component 10 and the optical lens 20 together forms an optical lens assembly. Furthermore, this optical lens assembly can be positioned inside the lens, thereby avoiding the eccentricity caused by fluctuations in the outer diameter tolerance of the optical lens 20, thus ensuring the eccentricity sensitivity of the optical lens 20. Moreover, the optical lens 20 is fixed to the sleeve component 10 with adhesive, thereby limiting the displacement of the optical lens 20. Compared to conventional lens assembly, this reduces the adverse effects of changes in the outer diameter of the optical lens 20 on its fit with the lens barrel component, improving lens performance yield. During adhesive application, the adhesive can pass through the lens side 201 and the first protruding surface 111 and / or the second protruding surface 112. Simultaneously, the sleeve groove 12 helps to enlarge the adhesive application surface of the optical lens 20 and can accommodate excess adhesive.

[0078] Unlike the first embodiment, in the second embodiment, the optical lens assembly can be assembled in the middle position inside the lens barrel. It can be understood that the optical lens assembly is assembled in the middle position inside the lens barrel along the optical axis, and other lenses are directly or indirectly assembled on both sides of the optical lens assembly.

[0079] Optionally, the bearing member 30 may include a spacer. When the optical lens assembly is assembled at an intermediate position inside the lens barrel, the first optical surface 21 may at least partially abut against the spacer inside the lens barrel, and the aforementioned spacer may be a metal spacer or a plastic spacer, which can perform a bearing function. When installing the optical lens assembly, the lenses and spacers may be assembled sequentially along the direction from the object side to the image side. After the aforementioned spacer is assembled, the pre-fixed optical lens assembly may be assembled into the interior of the lens barrel, such that the first optical surface 21 may at least partially abut against the aforementioned spacer, and the third protruding surface 113 may at least partially abut against the front end side wall 42. Afterwards, other lenses and spacers are sequentially assembled into position, and finally a press ring is installed and adhesive is dispensed for fixing, to assemble the lens.

[0080] Figure 4a shows an exemplary structural diagram containing dimensions of the optical lens assembly according to the second embodiment of the present application. As Figure 4a shown, the distance between the second protruding surface 112 and the optical axis is a first distance, and the distance between the lens side portion 201 and the optical axis is a second distance. The first distance and the second distance satisfy: 1.01<D / d<1.05, where D is the first distance, and d is the second distance. Optionally, the second protruding surface 112 may be parallel to the optical axis. In other embodiments, the second protruding surface 112 may be arranged to be inclined with respect to the optical axis. It can be understood that, at this time, the first distance D may be the shortest distance between the second protruding surface 112 and the optical axis. Optionally, the lens side portion 201 may be parallel to the optical axis. In other embodiments, the lens side portion 201 may be arranged to be inclined with respect to the optical axis. It can be understood that, at this time, the second distance d may be the shortest distance between the lens side portion 201 and the optical axis.

[0081] Optionally, the first distance D and the second distance d may satisfy: 1.01<D / d<1.05.

[0082] It can be understood that when the first distance D is much larger than the second distance d, the shaking range of the glass lens inside the sleeve will be too large, resulting in a large deviation between the optical axis of the glass lens and the optical axis of the lens barrel, and the eccentricity cannot be guaranteed. Further, when the difference between the first distance D and the second distance d is too small, the fluidity of the adhesive will deteriorate, so that the adhesive cannot fully contact the sleeve member 10 and the lens side portion 201, and there is a risk of the lens falling off. Therefore, by setting the first distance D and the second distance d to ensure that D / d is within a certain range, it is possible to allow the adhesive to better bond with the second protruding surface 112 and the lens side portion 201 while ensuring a certain gap between the first distance D and the second distance d, which can ensure the assembly eccentricity and the reliability of the lens at the same time.

[0083] Optionally, the optical lens 20 has a first optical surface 21 on the side opposite to the sleeve component 10 in the direction of the optical axis. The first optical surface 21 includes a first lens bearing surface 211 and a first optical surface 212. The third distance from the first lens bearing surface 211 to the first protruding surface 111 satisfies: c > 0.1 mm, where c is the third distance.

[0084] Optionally, the optical lens 20 may have a first optical surface 21 and a second optical surface 22. The first optical surface 21 may be the end facing the object side, and the second optical surface 22 may be the end facing the image side. In some embodiments, the first optical surface 21 may include a first lens bearing surface 211 and a first optical surface 212. The first lens bearing surface 211 may be disposed in the outer region of the first optical surface 21, and the first optical surface 212 may be disposed in the inner region of the first optical surface 21.

[0085] Optionally, the third distance c from the first optical surface 21 to the first raised surface 111 satisfies: c > 0.1 mm.

[0086] By setting a third distance c, glue can be prevented from flowing onto the lens assembly support surface, ensuring the tilt accuracy when assembling the lens with other individual components, thus meeting the assembly process requirements of lens assembly.

[0087] Optionally, the optical lens 20 has an optical support portion distributed radially, and the thickness of the optical support portion and the center thickness of the optical lens 20 satisfy: 1 ​​< / <3.8, of which, The thickness of the optical support component. The center thickness of optical lens 20.

[0088] Optionally, the optical bearing portion can be the edge region of the lens. The optical lens 20 can include a first optical surface 21 and a second optical surface 22. The first optical surface 21 can be the end facing the object side, and the second optical surface 22 can be the end facing the image side. Further, the first optical surface 21 can include a first lens bearing surface 211 and a first optical surface 212, wherein the first lens bearing surface 211 can be disposed in the outer region of the first optical surface 21; and the first optical surface 212 can be disposed in the inner region of the first optical surface 21. In some embodiments, the second optical surface 22 can include a second optical edge surface 221 and a second optical intermediate surface 222.

[0089] Optionally, the optical support portion is the area between the aforementioned first lens support surface 211 and the second optical edge surface 221, and the center of the optical lens 20 can be the portion of the aforementioned first optical surface 212 and the second optical intermediate surface 222 near the optical axis. It is understood that the thickness of the optical support portion... This can be the shortest distance between the first lens bearing surface 211 and the second optical edge surface 221; the center thickness of the optical lens 20 It can be the shortest distance between the first optical surface 212 and the second optical intermediate surface 222.

[0090] Optionally, / It can satisfy: 1 ​​< / <3.8. Among them, The thickness can be determined by the optical support component. The center thickness can be the optical lens 20.

[0091] By setting the thickness of the optical support and the center thickness of the optical lens 20, the lens can meet the thickness-to-thin ratio during the design stage, preventing a large proportion of fragments from forming during the trial production process, thereby ensuring the lens's yield and improving its strength.

[0092] Figure 4b An exemplary structural diagram of an optical lens assembly installed inside a lens barrel according to a second embodiment of this application is shown.

[0093] Optionally, the optical lens assembly further includes a support member 30, which is disposed on the side of the optical lens 20 away from the sleeve member 10 in the direction of the optical axis, and the support member 30 abuts against the first optical surface 21 to form an optical lens contact surface. In a second embodiment, the aforementioned support member 30 may include a spacer.

[0094] The minimum distance from the optical axis to the region where the supporting component 30 contacts the first optical surface 21 is the first contact dimension, and the maximum distance from the optical axis to the region where the first abutting surface 101 contacts the optical lens 20 is the second contact dimension. The first contact dimension and the second contact dimension satisfy: When d < 5mm, then When d 5mm, then ;in, The first contact size, This is the second contact dimension. Optionally, in the area where the bearing component 30 contacts the first optical surface 21, its minimum distance to the optical axis can be the first contact dimension. .

[0095] Optionally, the contact area between the first abutment surface 101 and the optical lens 20 can form a bushing contact surface, and the shortest distance from this bushing contact surface to the optical axis can be a second optical dimension. .

[0096] Optionally, the first contact size and the second contact size The size can be determined based on the second distance d. Specifically, when the second distance d < 5mm, Among them, the second contact size It can be larger than the first contact size. .

[0097] By setting the second contact size and the first contact size, when the optical lens 20 is projected along the optical axis, the areas where the first optical surface 21 and the second optical surface 22 and other components are supported can overlap during projection. This avoids stress concentration caused by uneven force on both sides of the lens and improves the surface accuracy of the lens.

[0098] Figure 4c An exemplary structural diagram including the dimensions of the sleeve component according to a second embodiment of this application is shown.

[0099] Optionally, the sleeve component 10 has a second abutment surface 102 formed on the side opposite to the first abutment surface 101, and the distance between the first abutment surface 101 and the second abutment surface 102 is the sleeve thickness, wherein the sleeve thickness satisfies: 1.5. )<4.0, where B is the sleeve thickness, This is the second contact dimension. This is the first contact dimension.

[0100] In the second embodiment, the side of the sleeve component 10 facing the object side may have a first abutting surface 101, and the side of the sleeve component 10 opposite to the first abutting surface 101 may have a second abutting surface 102. The sleeve thickness of the sleeve component 10 may be the distance between the first abutting surface 101 and the second abutting surface 102.

[0101] Optionally, the sleeve thickness and the first contact dimension of the sleeve component 10 and the second contact size The following relationship can be satisfied: 1.5 )<4.0, where, It can be the first contact size. It can be the second contact size.

[0102] ​​Optionally, the greater the thickness of the sleeve, the lower the flatness of the plane where the bearing region is located, which can reduce the influence caused by the inclination of the sleeve component 10 during the assembly of the sleeve component 10.

[0103] In some embodiments, the sleeve protrusion has a sleeve protrusion thickness h in the radial direction, and the sleeve protrusion thickness h satisfies: h>0.3mm and 0.5<h / B<2. Optionally, the sleeve protrusion 11 may have a sleeve protrusion thickness h in the radial direction. Further, the sleeve protrusion thickness h may be the distance between the second protrusion surface 112 and the third protrusion surface 113. It should be understood that the sleeve protrusion thickness h may be greater than 0.3mm. Optionally, the relationship between the sleeve protrusion thickness h and the sleeve thickness of the sleeve component 10 may satisfy the following formula: 0.5<h / B<2.

[0104] By setting the sleeve protrusion thickness h and the thickness B of the sleeve component 10, the uniformity of the lens barrel thickness can be ensured, which is beneficial to improving the circular runout and coaxiality of the inner diameter of the lens barrel. Optionally, the thickness of the optical bearing part and the third distance c satisfy: 2.0< / c<4.0.

[0105] Through the above arrangement, it helps to ensure that the adhesive fully bonds the glass lens and the sleeve. If / c is too large (for example the value of / c is greater than 4), the amount of adhesive is too small and the bonding strength is weak. If / c is too small (for example the value of / c is less than 2), the risk of adhesive overflowing to the inner wall of the lens barrel is increased.

[0106] Table 2 shows the parameters of the optical lens dimensions of the second embodiment of the present application. At this time, the optical lens assembly may be disposed in the middle of the lens barrel of the camera. It can be understood that, at this time, a spacer ring may be disposed at the end of the optical lens assembly close to the object side, and the spacer ring may be a plastic spacer ring or a metal spacer ring, etc. Further, as shown in Table 2, at this time, the first distance D may be 6.7mm, the second distance d may be 6.5mm, D / d may be 1.031, and the first contact dimension may be 3.01mm, the second contact dimension may be 2.84mm, may be 0.17mm, the third distance c may be 0.21mm, / c may be 2.14, the thickness of the optical bearing part may be 0.45mm, the center thickness of the optical lens may be 0.7mm, / The value can be 1.566, the sleeve thickness B can be 0.32mm, the sleeve protrusion thickness h can be 0.31mm, h / B can be 0.97, B / ( The value can be 1.88.

[0107] Table 2:

[0108] Figure 5a An exemplary structural diagram of an optical component installed inside a lens barrel according to a third embodiment of this application is shown. Figure 5b An exemplary structural diagram of an optical component according to a third embodiment of this application is shown. It should be understood that, in Figure 5b In the middle, the sleeve component 10 facing the image side may have a sleeve protrusion 11, a sleeve groove 12, and a sleeve abutment 13. The following will be combined with... Figure 5a and Figure 5b This section introduces the optical lens assembly.

[0109] It is understandable that when the optical lens assembly is positioned in the middle of the lens barrel, the space on the right side (i.e., the image side) of the optical lens 20 may not be sufficient to accommodate the sleeve component 10. In this case, the sleeve component 10 can be assembled on the left side of the optical lens 20 (e.g., ...). Figure 5a and Figure 5b (As shown).

[0110] Optionally, the sleeve component 10 can be symmetrically arranged around the optical axis. Further, the sleeve component 10 can have a first abutment surface 101 and a second abutment surface 102 formed at both ends along the optical axis of the optical lens assembly, wherein the first abutment surface 101 can face the optical lens 20, and the second abutment surface 102 can face away from the optical lens 20. It is understood that, in this case, the first abutment surface 101 can face the image side, and the second abutment surface 102 can face the object side.

[0111] Optionally, the sleeve component 10 can be an annular structure. In the radial direction of the sleeve assembly, along the direction close to the optical axis, the sleeve component 10 facing the image side can be sequentially formed with a sleeve protrusion 11, a sleeve groove 12, and a sleeve abutment 13. The sleeve abutment 13 can be close to the optical axis, the sleeve protrusion 11 can be away from the optical axis, and the sleeve groove 12 can be disposed between the sleeve protrusion 11 and the sleeve abutment 13.

[0112] Optionally, the sleeve protrusion 11 may include a first protruding surface 111, a second protruding surface 112, and a third protruding surface 113. Specifically, the first protruding surface 111 may be perpendicular to the optical axis and face the image side. The second protruding surface 112 may be facing the optical axis; it is understood that when the optical lens 20 and the sleeve component 10 are assembled together, the second protruding surface 112 may be facing the optical lens 20. In some embodiments, the third protruding surface 113 may be the side opposite to the second protruding surface 112, which may be the side facing away from the optical axis.

[0113] Optionally, the sleeve groove 12 may have a first sidewall 121, a second sidewall 122, and a groove bottom 123. The first sidewall 121 and the second sidewall 122 may be disposed opposite to each other, respectively located at both ends of the groove bottom 123, wherein the first sidewall 121 may be the side away from the optical axis, and the second sidewall 122 may be the side closer to the optical axis. Optionally, the sleeve groove 12 may be disposed between the sleeve protrusion 11 and the sleeve abutment portion 13. Specifically, the first sidewall 121 may be connected to the second protrusion surface 112, and the second sidewall 122 may be connected to the sleeve abutment portion 13.

[0114] Optionally, the optical lens 20 may have a first optical surface 21, a second optical surface 22, and a lens side portion 201, wherein the first optical surface 21 may be a side away from the sleeve component 10 in the direction of the optical axis, and the second optical surface 22 may be a side facing the sleeve component 10 in the direction of the optical axis.

[0115] In the third embodiment, the second optical surface 22 may be the side facing the object side, and the lens side 201 may be the side perpendicular to the optical axis. When the optical lens 20 is mounted on the sleeve assembly, the second optical surface 22 of the optical lens 20 may at least partially abut against the first abutment surface 101, and the lens side 201 may be the side facing the second protruding surface 112.

[0116] Furthermore, the first optical surface 21 may include a first lens bearing surface 211 and a first optical surface 212 (e.g., Figure 6a As shown in the figure, the first lens bearing surface 211 can be disposed in the outer region of the first optical surface 21, and the first optical surface 212 can be disposed in the inner region of the first optical surface 21. The second optical surface 22 may include a second optical edge surface 221 and a second optical intermediate surface 222.

[0117] Optionally, the optical lens 20 and the sleeve component 10 are bonded together. Specifically, the optical lens 20 and the sleeve component 10 can be bonded together using ultraviolet-cured adhesive (UV adhesive), epoxy resin, or anaerobic adhesive.

[0118] Figure 6a shows an exemplary structural diagram containing the dimensions of the optical lens assembly according to the third embodiment of the present application. As Figure 6a shown, the distance between the second protruding surface 112 and the optical axis is a first distance, the distance between the lens side portion 201 and the optical axis is a second distance, and the first distance and the second distance satisfy: 1.01<D / d<1.05, where D is the first distance, and d is the second distance.

[0119] Optionally, the second protruding surface 112 may be parallel to the optical axis. In other embodiments, the second protruding surface 112 may be arranged to be inclined relative to the optical axis. It can be understood that, at this time, the first distance D may be the shortest distance between the second protruding surface 112 and the optical axis. Optionally, the lens side portion 201 may be parallel to the optical axis. In other embodiments, the lens side portion 201 may be arranged to be inclined relative to the optical axis. It can be understood that, at this time, the second distance d may be the shortest distance between the lens side portion 201 and the optical axis.

[0120] Optionally, the first distance D and the second distance d may satisfy: 1.01<D / d<1.05.

[0121] It can be understood that when the first distance D is much larger than the second distance d, the shaking range of the glass lens in the sleeve will be too large, which will cause the optical axis of the glass lens to deviate greatly from the optical axis of the lens barrel, and the eccentricity cannot be guaranteed. Further, when the difference between the first distance D and the second distance d is too small, the fluidity of the glue will be deteriorated, the sufficient contact between the glue and the sleeve component 10 and the lens side portion 201 cannot be ensured, and there is a risk of the lens falling off. Therefore, by setting the first distance D and the second distance d to ensure D / d is within a certain range, while ensuring that there is a certain gap between the first distance D and the second distance d, the glue can be better bonded to the second protruding surface 112 and the lens side portion 201, which can ensure the assembly eccentricity and the reliability of the lens at the same time.

[0122] Optionally, the optical lens 20 may include a first optical surface 21 and a second optical surface 22. The side of the optical lens 20 facing away from the sleeve component 10 in the direction of the optical axis may be the first optical surface 21, the first optical surface 21 may be an end facing the object side, and the second optical surface 22 may be an end facing the image side. In some embodiments, the first optical surface 21 may include a first lens bearing surface 211 and a first optical surface 212, wherein the first lens bearing surface may be disposed in an outer region of the first optical surface 21; the first optical surface 212 may be disposed in an inner region of the first optical surface 21.

[0123] Optionally, the third distance c from the first lens bearing surface 211 to the first raised surface 111 satisfies: c>0.1mm.

[0124] By setting a third distance c, glue can be prevented from flowing onto the lens assembly support surface, ensuring the tilt accuracy when assembling the lens with other individual components, thus meeting the assembly process requirements of lens assembly.

[0125] Optionally, the optical lens 20 has an optical support portion distributed radially, and the thickness of the optical support portion and the center thickness of the optical lens 20 satisfy: 1 ​​< / <3.8, of which, The thickness of the optical support component. The center thickness of optical lens 20.

[0126] Optionally, the optical bearing portion can be the edge region of the lens. The first optical surface 21 may include a first lens bearing surface 211 and a first optical surface 212, wherein the first lens bearing surface 211 may be disposed in the outer region of the first optical surface 21; and the first optical surface 212 may be disposed in the inner region of the first optical surface 21. In some embodiments, the second optical surface 22 may include a second optical edge surface 221 and a second optical intermediate surface 222.

[0127] Optionally, the optical support portion is the area between the aforementioned first lens support surface 211 and the second optical edge surface 221, and the center of the optical lens 20 can be the portion of the aforementioned first optical surface 212 and the second optical intermediate surface 222 near the optical axis. It is understood that the thickness of the optical support portion... This can be the shortest distance between the first lens bearing surface 211 and the second optical edge surface 221; the center thickness of the optical lens 20 It can be the shortest distance between the first optical surface 212 and the second optical intermediate surface 222.

[0128] Optionally, / It can satisfy: 1 ​​< / <3.8. Among them, The thickness can be determined by the optical support component. It can be the center thickness of an optical lens.

[0129] By setting the thickness of the optical support and the center thickness of the optical lens, the lens can meet the thickness-to-thin ratio during the design stage, preventing a large proportion of fragments during the trial production process, thereby ensuring the yield rate of the lens and improving its strength.

[0130] Figure 6bAn exemplary structural diagram of an optical lens assembly installed inside a lens barrel according to a third embodiment of this application is shown.

[0131] Optionally, the optical lens assembly further includes a support member 30, which is disposed on the side of the optical lens 20 away from the sleeve member 10 in the direction of the optical axis, and the support member 30 abuts against the first optical surface 21.

[0132] The minimum distance from the optical axis to the region where the supporting component 30 contacts the first optical surface 21 is the first contact dimension, and the maximum distance from the optical axis to the region where the first abutting surface 101 contacts the optical lens 20 is the second contact dimension. The first contact dimension and the second contact dimension satisfy: When d < 5mm, then When d 5mm, then ; in, The first contact size, This is the second contact dimension. Optionally, in the area where the bearing component 30 contacts the first optical surface 21, its minimum distance to the optical axis can be the first contact dimension. Optionally, the contact area between the first abutment surface 101 and the optical lens 20 can form a bushing contact surface, and the shortest distance from this bushing contact surface to the optical axis can be a second optical dimension. .

[0133] Optionally, the first contact size and the second contact size The size can be determined based on the second distance d. Specifically, when the second distance d < 5mm, Among them, the second contact size It can be larger than the first contact size. .

[0134] By setting the second contact size and the first contact size, when the optical lens 20 is projected along the optical axis, the areas where the first optical surface 21 and the second optical surface 22 and other components each abut are overlapped during projection. This avoids stress concentration caused by uneven force on both sides of the lens, thereby improving the surface accuracy of the lens.

[0135] Figure 6c An exemplary structural diagram including the dimensions of the sleeve component according to a third embodiment of this application is shown.

[0136] Optionally, the sleeve component 10 has a second abutment surface 102 formed on the side opposite to the first abutment surface 101, and the distance between the first abutment surface 101 and the second abutment surface 102 is the sleeve thickness, wherein the sleeve thickness satisfies: 1.5. )<4.0, where B is the sleeve thickness, This is the second contact dimension. This is the first contact dimension.

[0137] The sleeve component 10 may have a first abutting surface 101 on the image-facing side, and a second abutting surface 102 on the side of the sleeve component 10 opposite to the first abutting surface 101. The sleeve thickness of the sleeve component 10 may be the distance between the first abutting surface 101 and the second abutting surface 102.

[0138] Optionally, the sleeve thickness and the first contact dimension of the sleeve component 10 and the second contact size The following relationship can be satisfied: 1.5 )<4.0, where, It can be the first contact size. It can be the second contact size.

[0139] It is understandable that the greater the thickness of the sleeve, the smaller the flatness of the plane where the bearing area is located, which can reduce the impact caused by the tilt of the sleeve component 10 when assembling the sleeve component 10.

[0140] Optionally, the sleeve protrusion 11 has a sleeve protrusion thickness h along the radial direction, and the sleeve protrusion thickness h satisfies: h > 0.3 mm and 0.5 mm. <h / B<2。

[0141] Optionally, the sleeve protrusion 11 may have a sleeve protrusion thickness h along the radial direction. Further, the sleeve protrusion thickness h can be the distance between the second protrusion surface 112 and the third protrusion surface 113; it should be understood that the sleeve protrusion thickness h can be greater than 0.3 mm. Optionally, the relationship between the sleeve protrusion thickness h and the sleeve thickness of the sleeve component 10 can satisfy the following formula: 0.5 <h / B<2。

[0142] By setting the thickness h of the sleeve protrusion and the thickness B of the sleeve component 10, the uniformity of the lens barrel thickness can be ensured, which is beneficial to improving the roundness and coaxiality of the inner diameter of the lens barrel. Optionally, the thickness of the optical support portion The third distance c satisfies: 2.0 < / c<4.0.

[0143] ​​The above setup helps ensure that the adhesive fully adheres to the glass lens and sleeve. If the / c value is too high, insufficient glue will be used, resulting in weak bonding strength. If it is too small, it increases the risk of glue overflowing onto the inner wall of the lens barrel.

[0144] In the third embodiment, when the optical lens assembly is positioned in the middle of the lens barrel, the space on the right side of the optical lens may not be sufficient to accommodate the sleeve component 10. In this case, the sleeve component 10 can be located on the object side of the optical lens 10, and the supporting component 30 can be located on the image side of the optical lens 10. The supporting component 30 may include a spacer. It is understood that when installing the optical lens assembly, the optical lens 20 can be first assembled onto the sleeve component 10, and then the optical lens 20 and the sleeve component 10 can be fixed by applying adhesive to form the optical lens assembly. The fixed optical lens assembly is then assembled into the lens barrel, and other lenses and spacers can be assembled in sequence. Finally, a pressure ring is installed and fixed by applying adhesive to form the lens.

[0145] Table 3 shows the parameters of the optical lens size according to the third embodiment of this application. At this time, the sleeve component 10 can be located in the middle region of the lens barrel component, and the sleeve component 10 can be disposed at the end of the optical lens 20 facing the object side. As shown in Table 3, the first distance D can be 6.64 mm, the second distance d can be 6.32 mm, D / d can be 1.051, and the first contact size... It can be 2.84mm, the second contact size. It can be 3.03mm. The distance can be 0.19mm, and the third distance c can be 0.14mm. / c can be 3.21, representing the thickness of the optical support. It can be 0.45mm, with a center thickness of 20 for the optical lens. It can be 0.7mm. / It can be 1.556, the thickness B can be 0.65mm, the sleeve protrusion thickness h can be 0.38mm, h / B can be 0.58, B / ( The value can be 3.42.

[0146] Table 3:

[0147] In summary, the solution of this application allows the optical lens assembly to be housed inside the lens, thereby avoiding the eccentricity caused by fluctuations in the outer diameter tolerance of the optical lens 20 and ensuring the eccentricity sensitivity of the optical lens 20. Furthermore, the optical lens 20 is fixed to the sleeve component 10 with adhesive, thus limiting the displacement of the optical lens 20. Compared to conventional lens assembly, this reduces the adverse effects of changes in the outer diameter of the optical lens 20 on its fit with the lens barrel component, improving lens performance yield. During adhesive application, the adhesive can pass through the lens side 201 and the first protruding surface 111 and / or the second protruding surface 112. Simultaneously, the sleeve groove 12 helps to enlarge the adhesive application surface of the optical lens 20 and can accommodate excess adhesive. By setting the second contact size and the first contact size, when the optical lens 20 is projected along the optical axis, the areas where the first optical surface 21 and the second optical surface 22 and other components each abut are overlapped during projection. This avoids stress concentration caused by uneven force on both sides of the lens, thereby improving the surface accuracy of the lens.

[0148] While numerous embodiments of this application have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will arise for those skilled in the art without departing from the spirit and intent of this application. It should be understood that various alternatives to the embodiments of this application described herein may be employed in the practice of this application. The appended claims are intended to define the scope of protection of this application and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. An optical lens assembly, characterized in that, comprising a sleeve member (10) and an optical lens (20); wherein, the sleeve member (10) is respectively formed with a sleeve protrusion (11), a sleeve groove (12) and a sleeve abutting portion (13) along the radial direction, wherein, the sleeve protrusion (11) has a first protrusion surface (111) and a second protrusion surface (112) opposite to the lens side portion (201) of the optical lens (20) in the radial direction; the sleeve groove (12) comprises a first side wall (121) and a second side wall (122), the first side wall (121) is connected to the second protrusion surface (112), the second side wall (122) is connected to the sleeve abutting portion (13), wherein the first side wall (121) and the second side wall (122) are disposed opposite to each other; the sleeve abutting portion (13) has a first abutting surface (101); the side of the optical lens (20) facing the sleeve member (10) in the direction of the optical axis at least partially abuts against the first abutting surface (101), and the lens side portion (201) is bonded to the first protrusion surface (111) and / or the second protrusion surface (112).

2. The optical lens assembly according to claim 1, characterized in that, the distance between the second protrusion surface (112) and the optical axis is a first distance, the distance between the lens side portion (201) and the optical axis is a second distance, and the first distance and the second distance satisfy: 1.01<D / d<1.05 wherein D is the first distance, and d is the second distance.

3. The optical lens assembly according to claim 2, characterized in that, the side of the optical lens (20) facing away from the sleeve member (10) in the direction of the optical axis has a first optical surface (21), wherein the first optical surface (21) comprises a first lens bearing surface (211) and a first optical face (212), and a third distance between the first lens bearing surface (211) and the first protrusion surface (111) along the optical axis direction satisfies: c>0.1mm, wherein c is the third distance.

4. The optical lens assembly according to claim 3, characterized in that, the optical lens assembly further comprises a bearing member (30), the bearing member (30) is disposed on the side of the optical lens (20) that is far away from the sleeve member (10) in the direction of the optical axis, and the bearing member (30) is in abutting contact with the first optical surface (21); the minimum distance from the optical axis in the region where the bearing member (30) is in contact with the first optical surface (21) is a first contact dimension, the maximum distance from the optical axis in the region where the first abutting surface (101) is in contact with the optical lens (20) is a second contact dimension, and the first contact dimension and the second contact dimension satisfy: When d < 5mm, then ; When d 5mm, then ; in, The first contact size, This is the second contact dimension.

5. The optical lens assembly according to claim 4, characterized in that, the side of the sleeve member (10) facing away from the first abutting surface (101) is formed with a second abutting surface (102), the distance between the first abutting surface (101) and the second abutting surface (102) is a sleeve thickness, and the sleeve thickness satisfies: 1.5<B / ( )<4.0， Where B is the sleeve thickness. The first contact size, This is the second contact dimension.

6. The optical lens assembly according to claim 3, characterized in that, The optical lens (20) has an optical support portion distributed radially, and the thickness of the optical support portion and the center thickness of the optical lens (20) satisfy: 1 ​​< / <3.8, of which, The thickness of the optical support component. The center thickness of the optical lens (20) is given.

7. The optical lens assembly according to claim 5, characterized in that, the sleeve protrusion (11) has a sleeve protrusion thickness along the radial direction, and the sleeve protrusion thickness satisfies: h>0.3mm and 0.5<h / B<2, wherein h is the sleeve protrusion thickness, and B is the sleeve thickness.

8. The optical lens assembly according to claim 6, characterized in that, The thickness of the optical support and the third distance satisfy: 2.0 < / c<4.0, where, denoted as , and c as the third distance.

9. A lens, characterized in that, Includes the optical lens assembly as described in any one of claims 1-8.

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