Glued lens group

Abstract

The utility model provides a glued lens group. The glued lens group comprises a first lens and a second lens, a groove structure is arranged on the surface of one side of the first lens, and the groove structure is arranged close to the edge of the first lens relative to the center of the first lens; the peripheral surface of the second lens is provided with a trimming structure, and the trimming structure is matched with the groove structure, so that the first lens and the second lens are buckled and connected. According to the utility model, the problem that the light transmittance and the assembly efficiency of the glued lens group in the prior art are difficult to guarantee at the same time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical imaging equipment, in particular to a glued lens group. Background Art

[0002] VR lenses typically utilize a folded optical system, which typically incorporates multiple lenses. This creates a greater number of refractive and reflective surfaces, leading to significant energy loss after multiple reflections and refractions, significantly reducing the transmittance of light passing through the system. Therefore, folded optical systems often utilize cemented lens assemblies. By combining two lenses so that their combined surfaces are coplanar, the number of refractive and reflective surfaces is reduced, thereby minimizing light refraction and reflection, and ultimately improving the transmittance of the entire system.

[0003] The current gluing process for bonded lens assemblies typically involves manual centering of individual lenses, adhesive application, and initial curing. Finally, after confirming the overall decentration accuracy, final light curing is performed. However, the lenses in folded optical systems are large in diameter and irregular in shape, making them unsuitable for traditional gluing processes. Furthermore, ensuring decentration accuracy is difficult, which in turn affects the assembly accuracy of the bonded lens assembly. Furthermore, assembly efficiency is difficult to maintain, hindering the production efficiency of rigid bonded lens assemblies.

[0004] That is to say, the prior art glued lens assembly has the problem that it is difficult to ensure both light transmittance and assembly efficiency at the same time. Utility Model Content

[0005] The main purpose of the utility model is to provide a glued lens assembly to solve the problem in the prior art that it is difficult to ensure both light transmittance and assembly efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a glued lens group, including a first lens and a second lens, a groove structure is provided on one side surface of the first lens, and the groove structure is arranged near the edge of the first lens relative to the center of the first lens; the outer peripheral surface of the second lens has a cutting edge structure, and the cutting edge structure cooperates with the groove structure to enable the first lens and the second lens to be snap-fitted and connected.

[0007] Furthermore, there are multiple groove structures, and the multiple groove structures are spaced apart around the circumference of the first lens. There are multiple trimming structures, and the multiple trimming structures correspond one-to-one to the multiple groove structures. Furthermore, at least two of the multiple groove structures are arranged axially symmetrically with the first direction as the axis of symmetry, and at least another two of the multiple groove structures are arranged axially symmetrically with the second direction as the axis of symmetry, and the first direction is perpendicular to the second direction; at least two of the multiple trimming structures are arranged axially symmetrically with the first direction as the axis of symmetry, and at least another two of the multiple trimming structures are arranged axially symmetrically with the second direction as the axis of symmetry.

[0008] Furthermore, a plurality of groove structures enclose an assembly space, and at least a portion of the second lens is accommodated in the assembly space. Projections of a corresponding set of edge trimming structures and the groove structures at least partially overlap with each other.

[0009] Furthermore, the first lens includes an optically effective portion and a mechanism portion that are concentrically arranged. The mechanism portion is located on the outer periphery of the optically effective portion and is arranged around the circumference of the optically effective portion. The groove structure is located on the mechanism portion.

[0010] Furthermore, the first lens and the second lens are glued together by a glue structure, a first glue gap is provided between the cutting edge structure and the groove structure in the radial direction, a second glue gap is provided between the cutting edge structure and the groove structure in the axial direction, and the first glue gap is connected to the second glue gap.

[0011] Furthermore, the outer peripheral side of the first lens has a first flange surface, the first flange surface is perpendicular to the optical axis, and the first flange surface is located on the mechanism part of the first lens; and / or the outer peripheral side of the second lens has a second flange surface, the second flange surface is perpendicular to the optical axis, and the second flange surface is located on the mechanism part of the second lens.

[0012] Furthermore, two axially symmetrical groove structures form a group, the groove structures in the same group have the same axial depth, and the groove structures in different groups have different axial depths.

[0013] Furthermore, the axial depth H1 of the groove structure axially symmetrically arranged with the first direction as the symmetry axis satisfies: 1mm≤H1≤3.5mm; and / or the axial depth H2 of the groove structure axially symmetrically arranged with the second direction as the symmetry axis satisfies: 1mm≤H2≤3.5mm.

[0014] Furthermore, the optical axis of the first lens coincides with the optical axis of the second lens, the groove structure is located on the side of the first lens having a concave surface, and the side of the second lens having a convex surface is arranged toward the first lens and connected to the first lens.

[0015] Applying the technical solution of the present invention, a glued lens group includes a first lens and a second lens. A groove structure is provided on one side surface of the first lens, and the groove structure is arranged near the edge of the first lens relative to the center of the first lens; the outer peripheral surface of the second lens has a cutting edge structure, and the cutting edge structure cooperates with the groove structure to enable the first lens and the second lens to be snap-fitted and connected.

[0016] By providing a groove structure on one side surface of the first lens and a trimming structure on the outer peripheral surface of the second lens, the first lens and the second lens can be directly connected by the precise cooperation of the trimming structure and the groove structure, ensuring that the two lenses can be centrally aligned, which is conducive to ensuring that the eccentricity accuracy of the glued lens group meets the requirements and is conducive to improving the assembly accuracy of the glued lens group. At the same time, the combined use of the two lenses can form a common surface when the two lenses face each other, thereby reducing the number of lens surfaces in the glued lens group and reducing the number of times light is refracted and reflected, which is conducive to reducing the loss of light energy and thus improving light transmittance. In addition, the present application achieves the snap connection between the first lens and the second lens through the cooperation of the trimming structure and the groove structure, which can eliminate the step of manually aligning the center of the single lens, simplify the assembly process of the two lenses, and is conducive to improving the assembly efficiency of the glued lens group, thereby improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of a first lens of a laminated lens assembly according to an optional embodiment of the present invention is shown;

[0019] Figure 2 Shown Figure 1 a top view of the first lens in FIG;

[0020] Figure 3 Shown Figure 2 A cross-sectional view of the first lens in the AA direction;

[0021] Figure 4 Shown Figure 2 A cross-sectional view of the first lens in the BB direction;

[0022] Figure 5 A schematic structural diagram of the second lens of a laminated lens assembly according to an optional embodiment of the present invention is shown;

[0023] Figure 6 Shown Figure 5 a top view of the second lens in FIG;

[0024] Figure 7 Shown Figure 6 A cross-sectional view of the second lens in the AA direction;

[0025] Figure 8 Shown Figure 6 A cross-sectional view of the second lens in the BB direction;

[0026] Figure 9 A schematic structural diagram showing an angle of a cemented lens assembly according to an optional embodiment of the present invention is shown;

[0027] Figure 10 Shown Figure 9 A top view of a cemented lens assembly;

[0028] Figure 11 Shown Figure 10 A cross-sectional view of the cemented lens group in the AA direction;

[0029] Figure 12 Shown Figure 10 A cross-sectional view of the cemented lens group in the BB direction;

[0030] Figure 13 A schematic structural diagram of a laminated lens assembly according to an optional embodiment of the present invention is shown;

[0031] Figure 14 Shown Figure 13 Enlarged view of point A in the middle.

[0032] The above drawings include the following reference numerals:

[0033] 10. First lens; 20. Second lens; 30. Groove structure; 40. Trimming structure; 50. Glue structure; 60. Second glue dispensing gap; 70. First flange surface; 80. Second flange surface; 90. First glue dispensing gap. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0036] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0037] In order to solve the problem in the prior art that it is difficult to ensure both light transmittance and assembly efficiency of a laminated lens assembly, the utility model provides a laminated lens assembly.

[0038] like Figures 1 to 14 As shown, the glued lens group includes a first lens 10 and a second lens 20. A groove structure 30 is provided on one side surface of the first lens 10. The groove structure 30 is arranged near the edge of the first lens 10 relative to the center of the first lens 10; the outer peripheral surface of the second lens 20 has a cutting structure 40, which cooperates with the groove structure 30 to make the first lens 10 and the second lens 20 snap-fitted and connected.

[0039] By providing a groove structure 30 on one side surface of the first lens 10 and a trimming structure 40 on the outer peripheral surface of the second lens 20, the trimming structure 40 and the groove structure 30 can be precisely matched to achieve a snap-fit connection between the first lens 10 and the second lens 20, ensuring that the two lenses can be centrally aligned, which is conducive to ensuring that the decentration accuracy of the glued lens set meets the requirements and is conducive to improving the assembly accuracy of the glued lens set. At the same time, the combination of the two lenses can form a common surface when the two lenses face each other, thereby reducing the number of lens surfaces in the glued lens set and reducing the number of times light is refracted and reflected, which is conducive to reducing the loss of light energy and thus improving light transmittance. In addition, the present application achieves a snap-fit connection between the first lens 10 and the second lens 20 through the matching of the trimming structure 40 and the groove structure 30, which can eliminate the step of manually aligning the center of the single lens, simplify the assembly process of the two lenses, and is conducive to improving the assembly efficiency of the glued lens set, thereby improving production efficiency and reducing production costs.

[0040] It should be noted that the optical axis of the first lens 10 in the laminated lens assembly coincides with the optical axis of the second lens 20. The groove structure 30 is located on the concave side of the first lens 10, while the convex side of the second lens 20 faces and connects to the first lens 10. This arrangement allows the concave surface of the first lens 10 to be bonded to the convex surface of the second lens 20, thereby eliminating a refractive surface, reducing light energy loss, and improving light transmittance. This arrangement also ensures that the groove structure 30 can stably cooperate with the trimming structure 40, aligning the optical axes of the first lens 10 and the second lens 20. This further ensures smoother light transmission through the laminated lens assembly, thereby improving light transmission stability.

[0041] Specifically, there are multiple groove structures 30, spaced apart around the circumference of the first lens 10. There are multiple trimming structures 40, spaced apart around the outer circumference of the second lens 20, with each trimming structure 40 corresponding to each of the multiple groove structures 30. Specifically, the number of trimming structures 40 matches the number of groove structures 30, with each groove structure 30 on the first lens 10 having a corresponding trimming structure 40. This arrangement facilitates precise alignment of the first lens 10 and the second lens 20, allowing multiple sets of trimming structures 40 and groove structures 30 to form multiple engaging positions, thereby limiting relative displacement between the two lenses in multiple directions. This enhances the engagement strength and stability of the bonded connection between the first lens 10 and the second lens 20, further improving the assembly precision of the bonded lens assembly. By rationally planning the distribution of the multiple groove structures 30 and the multiple trimming structures 40, all-around alignment and engagement can be achieved between the two lenses, ensuring that the optical centers of the two lenses are consistently aligned and that the decentration accuracy of the bonded lens assembly meets the required standards.

[0042] like Figure 2 and Figure 6 As shown, at least two of the multiple groove structures 30 are arranged axially symmetrically with the first direction as the axis of symmetry, and at least another two of the multiple groove structures 30 are arranged axially symmetrically with the second direction as the axis of symmetry, the first direction is perpendicular to the second direction, and the plane formed by the first direction and the second direction is perpendicular to the optical axis; moreover, at least two of the multiple cutting edge structures 40 are arranged axially symmetrically with the first direction as the axis of symmetry, and at least another two of the multiple cutting edge structures 40 are arranged axially symmetrically with the second direction as the axis of symmetry.

[0043] Specifically, two symmetrically arranged groove structures 30 form a group, and at least two groups of groove structures 30 are provided on the first lens 10. Two symmetrically arranged edge trimming structures 40 form a group, and at least two groups of edge trimming structures 40 are provided on the second lens 20. By rationally planning the distribution of the multiple groove structures 30 on the first lens 10 and the distribution of the multiple edge trimming structures 40 on the second lens 20, it is advantageous to ensure that the optical axis of the first lens 10 and the optical axis of the second lens 20 coincide, thereby ensuring that the optical centers of the first lens 10 and the second lens 20 can be aligned, ensuring the assembly accuracy of the two lenses, and ensuring that the decentration accuracy of the glued lens assembly meets the requirements. In addition, by arranging at least four of the multiple groove structures 30 on the first lens 10 to be symmetrically distributed along two directions, and planning at least four of the multiple edge trimming structures 40 on the second lens 20 to be symmetrically distributed along two directions, high-precision assembly of the two lenses can be achieved directly by aligning the groove structures 30 and edge trimming structures 40 without centering the individual lenses, thereby achieving automated or semi-automated production of the glued lens assembly, significantly reducing the production cost of the glued lens assembly and improving production efficiency.

[0044] In the preferred embodiment of this application, reference is made to Figures 1 to 4 As shown, there are four groove structures 30 on the first lens 10, two of the four groove structures 30 are arranged axially symmetrically with the first direction as the symmetry axis, and the two groove structures 30 arranged axially symmetrically with the first direction extend along the first direction, and the other two of the four groove structures 30 are arranged axially symmetrically with the second direction as the symmetry axis, and the two groove structures 30 arranged axially symmetrically with the second direction extend along the second direction. Figure 2 The AA direction is the second direction, and the BB direction is the first direction. Figures 5 to 8 As shown, there are four edge trimming structures 40 on the second lens 20, two of the four edge trimming structures 40 are arranged axially symmetrically with the first direction as the symmetry axis, and the two edge trimming structures 40 are parallel to the first direction, and the other two of the four edge trimming structures 40 are arranged axially symmetrically with the second direction as the symmetry axis, and the two edge trimming structures 40 are parallel to the second direction. Figure 6 The AA direction is the second direction, and the BB direction is the first direction. This arrangement ensures precise engagement of the first lens 10 and the second lens 20 with fewer groove structures 30 and trimming structures 40, allowing optical center alignment of two lenses with larger diameters or irregular shapes, while also preventing positional shifting during subsequent use.

[0045] It should be noted that the edge cutting structure 40 is equivalent to a plane formed by cutting off a portion of the peripheral portion of the lens along the optical axis. Figure 2 、 Figures 9 to 13As shown, multiple groove structures 30 of the first lens 10 enclose an assembly space, and at least a portion of the second lens 20 is accommodated within the assembly space. The projections of the corresponding set of trimming structures 40 and the groove structures 30 at least partially overlap. By providing multiple groove structures 30 to enclose the assembly space, the assembly position of the second lens 20 and the first lens 10 can be more accurately guided, ensuring that at least a portion of the second lens 20 can be stably positioned within the assembly space and in contact with the first lens 10, thereby ensuring the structural stability of the bonded lens assembly. The projections of the corresponding set of trimming structures 40 and the groove structures 30 at least partially overlap, that is, the projections of the trimming structures 40 in the corresponding set onto the groove structures 30 at least partially cover the groove structures 30, and the projections of the groove structures 30 in the corresponding set onto the trimming structures 40 at least partially cover the trimming structures 30. This allows the corresponding set of trimming structures 40 and the groove structures 30 to form radial limits, thereby enabling the first lens 10 to restrict radial movement of the second lens 20, ensuring the positional stability of the second lens 20 and facilitating subsequent bonding.

[0046] It should be noted that the first lens 10 includes an optically effective portion and a mechanical portion that are concentrically arranged and connected to each other. The mechanical portion is located on the outer periphery of the optically effective portion and is arranged around the circumference of the optically effective portion. The groove structure 30 is located on the mechanical portion. The optically effective portion is actually a light-transmitting portion, used for the passage of imaging light; the mechanical portion is actually a non-light-transmitting portion, not used for the passage of imaging light, but only used to support and abut with adjacent lenses, structural components, or lens barrels. By arranging the groove structure 30 on the mechanical portion of the first lens 10, the groove structure 30 is not located on the path of the imaging light passing through the optically effective portion, thereby preventing the groove structure 30 from affecting the normal transmission of the light path, which is beneficial for ensuring the optical performance and light transmission stability of the cemented lens assembly.

[0047] refer to Figure 3 and Figure 4 As shown, the distance between the two sides of the first lens 10, which are symmetrically arranged along a first direction, is B1, and the distances between the two groove structures 30 and the optical axis are equal. The distance between the two sides of the first lens 10, which are symmetrically arranged along a second direction, is L1, and the distances between the two groove structures 30 and the optical axis are equal. In different embodiments of the present application, B1 is equal to or different from L1.

[0048] refer to Figure 7 and Figure 8As shown, the distance between the two trimming structures 40 arranged symmetrically along the first direction on the second lens 20 is B2, and the distances between the two trimming structures 40 and the optical axis are equal; the distance between the two trimming structures 40 arranged symmetrically along the second direction on the second lens 20 is L2, and the distances between the two trimming structures 40 and the optical axis are equal. In different embodiments of the present application, B2 is equal to or different from L2.

[0049] In the specific embodiment of the present application, B1 is greater than B2, and L1 is greater than L2, so that the first lens 10 can provide sufficient assembly space to ensure that at least a portion of the second lens 20 can be stably accommodated in the assembly space, while ensuring stable cooperation between the trimming structure 40 and the groove structure 30. In addition, such an arrangement can also ensure that a first dispensing gap 90 is present in the radial direction between the corresponding trimming structure 40 and the groove structure 30. Figure 14 The first glue gap 90 shown in the figure is not obvious, but it actually exists. This allows the first lens 10 and the second lens 20 to be fastened together in a clearance fit, avoiding interference between the two lens structures and ensuring the reliability of the two lenses. At the same time, the first glue gap 90 leaves room for glue dispensing, and the first lens 10 and the second lens 20 can be subsequently glued together by dispensing glue in the first glue gap 90. In addition, the provision of the first glue gap 90 allows for fine-tuning of the position between the two lenses during the gluing process, thereby adjusting the two lenses to the optimal alignment position and ensuring alignment accuracy.

[0050] It should be noted that the tolerance of the first dispensing gap 90 is greater than or equal to 0.005 mm and less than or equal to 0.015 mm.

[0051] like Figure 11 and Figure 12 As shown, the outer periphery of the first lens 10 has a first flange surface 70, which is perpendicular to the optical axis and located on the mechanism portion of the first lens 10. The first flange surface 70 can be provided on both the object side and the image side of the mechanism portion of the first lens 10. The first flange surface 70 is equivalent to a full-circle platform surface provided on the mechanism portion, which is used for platform support during gluing or assembly with the second lens 20, and serves as an assembly reference or testing reference.

[0052] Specifically, the outer periphery of the second lens 20 has a second flange surface 80, which is perpendicular to the optical axis and located on the mechanism portion of the second lens 20. Second flange surfaces 80 can be provided on both the object and image sides of the mechanism portion of the first lens 10. The second flange surface 80 is equivalent to a full-circle platform surface provided on the mechanism portion, which is used for platform support during gluing or assembly with the first lens 10, serving as an assembly or testing reference. Specifically, the second flange surface 80 on the side of the second lens 20 facing the first lens 10 is arranged higher than the surface on which the trimming structure 40 is located. This arrangement enables the first lens 10 and the second lens 20 to provide a surface for applying force when they are assembled. Subsequently, force can be applied to the second flange surface 80 to press the second lens 20 into the first lens 10 to achieve a snap-fit connection between the two. The portion of the second flange surface 80 corresponding to the trimming structure 40 is set higher than the surface where it is located. On the one hand, it facilitates the positioning of the force application position. On the other hand, it is beneficial to increase the axial thickness of the lens structure where the second flange surface 80 is located, thereby enhancing the structural strength, thereby avoiding the risk of deformation of the second lens 20 during the assembly force application process and ensuring the shape stability and reliability of the second lens 20.

[0053] like Figure 13 and Figure 14 As shown, the first lens 10 and the second lens 20 are glued together by a glue structure 50, and a second glue gap 60 is provided between the trimming structure 40 and the groove structure 30 in the axial direction. The first glue gap 90 is connected to the second glue gap 60, and the concave surface of the first lens 10 and the convex surface of the second lens 20 are both glued surfaces. After the first lens 10 and the second lens 20 are snapped together, glue is dispensed at the first glue gap 90 so that the glue structure 50 flows into the gap between the concave surface of the first lens 10 and the convex surface of the second lens 20 through the first glue gap 90 and the second glue gap 60, thereby filling the gap between the concave surface of the first lens 10 and the convex surface of the second lens 20 with the glue structure 50, so as to achieve the bonding of the first lens 10 and the second lens 20, so as to ensure the light transmittance of the glued lens group. By setting the second glue dispensing gap 60, the second glue dispensing gap 60 can not only have the function of storing overflow glue during gluing, but also can reasonably control the thickness of the glue structure 50, ensuring that the thickness of the glue structure 50 between the first lens 10 and the second lens 20 is within a reasonable range, thereby ensuring the rationality of the glue thickness.

[0054] like Figure 2 、 Figure 3 and Figure 4As shown, two groove structures 30 arranged axially symmetrically form a group. The axial depths of the groove structures 30 in the same group are the same, while the axial depths of the groove structures 30 in different groups are different. Specifically, the two groove structures 30 arranged axially symmetrically in the first direction have the same depth, and the two groove structures 30 have the same extension length in the first direction; the two groove structures 30 arranged axially symmetrically in the second direction have the same depth, and the two groove structures 30 have the same extension length in the first direction; the groove structures 30 arranged axially symmetrically in the second direction have different depths and extension lengths from the groove structures 30 arranged axially symmetrically in the first direction. This arrangement helps ensure that the groove depths of the same group are the same, while the groove structures 30 in different groups are different. By planning groove structures 30 of different sizes, it is beneficial to adapt to lenses of different shapes and sizes, while ensuring the stability of subsequent assembly with the second lens 20 and the parallelism of the gluing of the two lenses.

[0055] Specifically, the axial depth H1 of the groove structure 30, which is arranged symmetrically about the first direction, satisfies the following conditions: 1 mm ≤ H1 ≤ 3.5 mm. The axial depth H2 of the groove structure 30, which is arranged symmetrically about the second direction, satisfies the following conditions: 1 mm ≤ H2 ≤ 3.5 mm. This arrangement can compensate for differences in lens thickness and facilitates parallel assembly of the first lens 10 and the second lens 20.

[0056] Optionally, two axially symmetrically arranged trimming structures 40 form a group. The trimming structures 40 in the same group have the same dimensions, while the trimming structures 40 in different groups have different axial depths. Specifically, the two trimming structures 40 arranged axially symmetrically in a first direction have the same dimensions; the two trimming structures 40 arranged axially symmetrically in a second direction have the same dimensions; and the trimming structures 40 arranged axially symmetrically in the second direction have different dimensions from the trimming structures 40 arranged axially symmetrically in the first direction. This arrangement helps ensure that the dimensions of the corresponding group of trimming structures 40 and the groove structure 30 match each other, thereby ensuring smooth, stable, and precise fastening of the first lens 10 and the second lens 20.

[0057] In addition, the above-mentioned cemented lens group can be used in the folded optical path system of the VR lens, but is not limited to this, and can also be set in different types of optical systems according to actual needs.

[0058] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0059] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0060] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A laminated lens assembly, characterized in that: include: A first lens (10), wherein a groove structure (30) is provided on one side surface of the first lens (10), and the groove structure (30) is provided near the edge of the first lens (10) relative to the center of the first lens (10); A second lens (20), wherein the outer peripheral surface of the second lens (20) has a cutting edge structure (40), and the cutting edge structure (40) cooperates with the groove structure (30) to enable the first lens (10) and the second lens (20) to be snap-fitted and connected.

2. The laminated lens assembly according to claim 1, characterized in that: There are a plurality of groove structures (30), and the plurality of groove structures (30) are arranged at intervals around the circumference of the first lens (10); there are a plurality of edge cutting structures (40), and the plurality of edge cutting structures (40) correspond one-to-one to the plurality of groove structures (30).

3. The laminated lens assembly according to claim 2, wherein: At least two of the plurality of groove structures (30) are arranged axially symmetrically with a first direction as a symmetry axis, and at least another two of the plurality of groove structures (30) are arranged axially symmetrically with a second direction as a symmetry axis, wherein the first direction is perpendicular to the second direction; At least two of the plurality of trimming structures (40) are arranged axially symmetrically with the first direction as the axis of symmetry, and at least another two of the plurality of trimming structures (40) are arranged axially symmetrically with the second direction as the axis of symmetry.

4. The laminated lens assembly according to claim 2, wherein: A plurality of the groove structures (30) enclose an assembly space, in which at least a portion of the second lens (20) is accommodated, and a corresponding set of the trimming structures (40) and the projections of the groove structures (30) on each other at least partially overlap.

5. The cemented lens assembly according to claim 1, characterized in that: The first lens (10) comprises an optically effective portion and a mechanism portion which are arranged concentrically. The mechanism portion is located on the outer peripheral side of the optically effective portion and is arranged around the circumference of the optically effective portion. The groove structure (30) is located on the mechanism portion.

6. The cemented lens assembly according to claim 1, characterized in that: The first lens (10) and the second lens (20) are glued together by a glue structure (50); a first glue-dotting gap (90) is provided between the trimming structure (40) and the groove structure (30) in the radial direction; a second glue-dotting gap (60) is provided between the trimming structure (40) and the groove structure (30) in the axial direction; and the first glue-dotting gap (90) is connected to the second glue-dotting gap (60).

7. The laminated lens assembly according to claim 2, wherein: The outer peripheral side of the first lens (10) has a first flange surface (70), the first flange surface (70) is perpendicular to the optical axis, and the first flange surface (70) is located on the mechanism part of the first lens (10); and / or the outer peripheral side of the second lens (20) has a second flange surface (80), the second flange surface (80) is perpendicular to the optical axis, and the second flange surface (80) is located on the mechanism part of the second lens (20).

8. The laminated lens assembly according to claim 3, wherein: The two groove structures (30) arranged in an axially symmetrical manner form a group. The groove structures (30) in the same group have the same axial depth, while the groove structures (30) in different groups have different axial depths.

9. The cemented lens assembly according to claim 3, characterized in that: The axial depth H1 of the groove structure (30) arranged axially symmetrically with the first direction as the symmetry axis satisfies: 1mm≤H1≤3.5mm; and / or The axial depth H2 of the groove structure (30) arranged axially symmetrically with the second direction as the symmetry axis satisfies: 1mm≤H2≤3.5mm.

10. The cemented lens assembly according to any one of claims 1 to 9, characterized in that: The optical axis of the first lens (10) coincides with the optical axis of the second lens (20); the groove structure (30) is located on the side of the first lens (10) having a concave surface; and the side of the second lens (20) having a convex surface is arranged toward the first lens (10) and connected to the first lens (10).

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