Lens assembly and electronic device

Abstract

The utility model discloses a lens assembly and electronic equipment for solving the technical problem that the lens of the existing lens assembly is easy to fall off under external force. The lens assembly comprises a lens and a lens seat. The lens is mounted on the lens seat, and a glue filling structure for filling fixing glue is arranged between the lens and the lens seat. The glue filling structure is filled with fixing glue to fix the lens on the lens seat. In the above design, the glue filling structure for filling fixing glue is arranged between the lens and the lens seat. The glue filling area of the lens and the lens seat can be effectively increased in the glue filling structure, thereby improving the bonding strength between the lens and the lens seat, and avoiding the situation that the lens is easy to fall off from the lens seat under external force, resulting in the failure of the lens assembly.

Description

Technical Field

[0001] This utility model relates to the field of lens assembly design technology, and in particular to a lens assembly and electronic device. Background Technology

[0002] With the rapid development of multimedia technology, digital cameras, camcorders, and mobile phones with cameras are becoming increasingly popular among consumers. In electronic devices such as digital cameras, camcorders, and mobile phone cameras, the lens assembly is an indispensable component.

[0003] Existing lens assemblies typically consist of a lens and a lens mount, which are fixed together using adhesive. In lens assembly design, the gap between the lens and the lens mount is usually designed to be <100μm to ensure shear strength. The lens BFL (back focal length) tolerance is ±50μm, and the lens mount manufacturing tolerance is ±30μm. Furthermore, both the lens and lens mount assembly surfaces are flat and smooth, contributing little to the shear strength. When the lens BFL and lens mount manufacturing tolerances fluctuate towards the upper limit, the gap between the lens and the lens mount exceeds the design value. This increased gap alters the structure of the adhesive-filled area, causing a sharp drop in the bonding strength between the lens and the lens mount. This makes the lens prone to detaching from the lens mount under external force, leading to the failure of the entire lens assembly.

[0004] Therefore, finding a technical solution that can solve the above-mentioned technical problems has become an important research topic for those skilled in the art. Utility Model Content

[0005] This utility model discloses a lens assembly and electronic device to solve the technical problem that existing lens assemblies are prone to lens detachment under stress due to insufficient adhesive bonding area between the lens and the lens mount.

[0006] This utility model provides a lens assembly, including a lens and a lens mount;

[0007] The lens is mounted on the lens mount, and an adhesive filling structure for filling and fixing adhesive is provided between the lens and the lens mount. The adhesive filling structure is filled with fixing adhesive to fix the lens to the lens mount.

[0008] Optionally, the adhesive filling structure includes an annular protrusion at the bottom end of the lens and an annular groove at the top end of the lens mount.

[0009] The annular protrusion is arranged along the circumference of the lens, the annular groove is arranged along the circumference of the lens mount, the annular protrusion and the annular groove are correspondingly arranged, and the annular protrusion is located in the annular groove. The fixing adhesive fills the annular groove and covers the annular protrusion to fix the lens on the lens mount.

[0010] Optionally, the adhesive filling structure includes an annular groove at the bottom end of the lens and an annular protrusion at the top end of the lens mount;

[0011] The annular groove is arranged along the circumference of the lens, the annular protrusion is arranged along the circumference of the lens mount, the annular protrusion is arranged corresponding to the annular groove, and the annular protrusion is located within the annular groove. The fixing adhesive fills the annular groove and covers the annular protrusion to fix the lens to the lens mount.

[0012] Optionally, the width of the cross-section of the annular protrusion is smaller than the width of the cross-section of the annular groove.

[0013] Optionally, the height of the annular protrusion is equal to the depth of the annular groove.

[0014] Optionally, the annular protrusions are arranged parallel to the annular grooves.

[0015] Optionally, the cross-section of the annular protrusion is quadrilateral, and the cross-section of the annular groove is quadrilateral.

[0016] Optionally, the lens has a first hollow cavity inside, in which an optical lens is installed, and the lens mount has a second hollow cavity inside, in which an optical sensor is installed, wherein the optical lens and the optical sensor are on the same axis.

[0017] Optionally, an FPC circuit board is also mounted at the bottom end of the lens mount, and the FPC circuit board is electrically connected to the optical sensor.

[0018] This utility model discloses an electronic device, including the lens assembly described above.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the lens assembly of this utility model, an adhesive filling structure for filling and fixing adhesive is provided between the lens and the lens mount. The adhesive filling structure can effectively increase the adhesive area between the lens and the lens mount, thereby improving the bonding strength between the lens and the lens mount, and thus preventing the lens from easily falling off the lens mount under external force, which would cause the lens assembly to malfunction. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of a lens assembly provided by this utility model;

[0023] Figure 2 This utility model provides a schematic diagram of the lens structure in a lens assembly;

[0024] Figure 3 A schematic diagram of a lens mount structure in a lens assembly provided by this utility model;

[0025] Figure 4 A three-dimensional sectional view of a lens assembly provided by this utility model;

[0026] Figure 5 A planar cross-sectional view of a lens assembly provided by this utility model;

[0027] Illustration: Lens 1; Lens mount 2; FPC circuit board 3; Annular protrusion 4; Optical lens 5; Annular groove 6; Optical sensor 7; Fixing adhesive 8. Detailed Implementation

[0028] This utility model discloses a lens assembly and electronic device to solve the technical problem that the lens of existing lens assemblies is prone to detachment under external force.

[0029] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1 to 5 The present invention provides a lens assembly, including a lens 1 and a lens mount 2;

[0031] The lens 1 is mounted on the lens mount 2, and an adhesive filling structure for filling and fixing adhesive 8 is provided between the lens 1 and the lens mount 2. The adhesive filling structure is filled with fixing adhesive 8 to fix the lens 1 to the lens mount 2.

[0032] In the lens assembly of this embodiment, an adhesive filling structure for filling and fixing adhesive 8 is provided between the lens 1 and the lens mount 2. The adhesive filling structure can effectively increase the adhesive area between the lens 1 and the lens mount 2, thereby improving the bonding strength between the lens 1 and the lens mount 2, and thus preventing the lens 1 from easily falling off the lens mount 2 under external force, which would cause the lens assembly to malfunction.

[0033] Furthermore, in the first specific embodiment of this example, the glue filling structure includes an annular protrusion 4 disposed at the bottom end of the lens 1 and an annular groove 6 disposed at the top end of the lens mount 2.

[0034] The annular protrusion 4 is arranged along the circumference of the lens 1, and the annular groove 6 is arranged along the circumference of the lens mount 2. The annular protrusion 4 and the annular groove 6 are correspondingly arranged, and the annular protrusion 4 is located within the annular groove 6. The fixing adhesive 8 fills the annular groove 6 and covers the annular protrusion 4 to fix the lens 1 to the lens mount 2.

[0035] It should be noted that, through the above design, since the annular groove 6 has a certain depth, the longitudinal adhesive area can be effectively increased. Furthermore, after the above-mentioned fixing adhesive 8 is cured, it will cover the annular protrusion 4, thereby effectively improving the bonding strength between the lens 1 and the lens mount 2.

[0036] In the second specific embodiment of this example, the positions of the annular groove 6 and the annular protrusion 4 are interchanged. Specifically, the glue filling structure includes an annular groove 6 disposed at the bottom end of the lens 1 and an annular protrusion 4 disposed at the top end of the lens mount 2.

[0037] The annular groove 6 is arranged along the circumference of the lens 1, and the annular protrusion 4 is arranged along the circumference of the lens mount 2. The annular protrusion 4 is arranged corresponding to the annular groove 6, and the annular protrusion 4 is located within the annular groove 6. The fixing adhesive 8 fills the annular groove 6 and covers the annular protrusion 4 to fix the lens 1 to the lens mount 2.

[0038] The above design effectively increases the longitudinal adhesive area, and the fixing adhesive 8 will cover the annular protrusion 4 after curing, thereby effectively improving the bonding strength between the lens 1 and the lens mount 2.

[0039] Furthermore, in this embodiment, the width of the cross-section of the annular protrusion 4 is smaller than the width of the cross-section of the annular groove 6.

[0040] The height of the annular protrusion 4 is equal to the depth of the annular groove 6. In addition, in different specific embodiments, the height of the annular protrusion 4 may not be equal to the depth of the annular groove 6. This embodiment does not limit this.

[0041] In addition, the aforementioned annular protrusions 4 and annular grooves 6 are arranged in parallel and corresponding to each other.

[0042] It should be noted that, taking the first specific embodiment mentioned above as an example, when the fixing adhesive 8 fills the fixing adhesive 8 filling structure, the fixing adhesive 8 first fills the annular groove 6, and then as the annular protrusion 4 is pressed down into the annular groove 6, and because the cross-sectional width of the annular protrusion 4 is smaller than the cross-sectional width of the annular groove 6, the fixing adhesive 8 is pressed out of the annular groove 6 to surround the periphery of the annular protrusion 4.

[0043] The specific parameters of the annular protrusion 4 and the annular groove 6 will be illustrated below with a concrete example:

[0044] Taking the first specific embodiment mentioned above as an example, the length and width of the lens 1 are 7x7mm: the cross-sectional width of the annular protrusion 4 of the lens 1 is 0.15mm, the protrusion height is 0.05mm, and the circumference of the annular protrusion 4 is 4*7mm, so the increased longitudinal area is at least 7x0.05x4=14mm²; the cross-sectional width of the annular groove 6 of the lens mount 2 is 0.25mm, the recess depth is 0.05mm, and the circumference of the annular groove 6 is 4*7mm, so the increased longitudinal area is at least 7x0.05x4=14mm²;

[0045] The above increases the longitudinal adhesive area by at least 14 + 14 = 28 mm². As can be seen, by designing an adhesive filling structure, the longitudinal adhesive area can be increased, effectively improving the bonding strength between lens 1 and lens mount 2, and preventing lens 1 from easily falling off lens mount 2 under external force, which would cause the lens assembly to malfunction.

[0046] Furthermore, in this embodiment, the shape of the cross-section of the annular protrusion 4 and the annular groove 6 is not limited. The cross-section of the annular protrusion 4 can be quadrilateral, and the cross-section of the annular groove 6 can be quadrilateral.

[0047] It should be noted that, specifically, the cross-sectional shape of the aforementioned annular protrusion 4 can be rectangular, square, etc., and the cross-sectional shape of the aforementioned annular groove 6 can be rectangular, square, etc. This embodiment does not impose any limitations on this, and designers can select annular protrusion 4 and annular groove 6 with appropriate cross-sectional shapes according to actual design requirements.

[0048] Furthermore, in this embodiment, the lens 1 has a first hollow cavity inside, in which an optical lens 5 is installed, and the lens mount 2 has a second hollow cavity inside, in which an optical sensor 7 is installed, wherein the optical lens 5 and the optical sensor 7 are on the same axis.

[0049] It should be noted that the optical lens 5 mentioned above can be a convex lens or the like, and this embodiment does not limit it.

[0050] Furthermore, in this embodiment, an FPC circuit board 3 is also installed at the bottom end of the mirror mount 2, and the FPC circuit board 3 is electrically connected to the optical sensor 7.

[0051] It should be noted that the main function of the FPC circuit board 3 mentioned above is to provide power to the optical sensor 7 and to transmit data from the photoelectric sensor.

[0052] Please see Figures 1 to 5 The present invention provides an electronic device, which may be a smartphone, tablet computer, or laptop computer, etc., and specifically includes the lens assembly described above.

[0053] In the electronic device of this embodiment, an adhesive filling structure for filling and fixing adhesive 8 is provided between the lens 1 and the lens mount 2. The adhesive filling structure can accommodate more fixing adhesive 8, that is, it changes the structure of the filling area of ​​the fixing adhesive 8, effectively increasing the adhesive area between the lens 1 and the lens mount 2, thereby improving the bonding strength between the lens 1 and the lens mount 2, and thus avoiding the situation where the lens 1 is easily detached from the lens mount 2 under external force, resulting in the failure of the lens assembly function.

[0054] The lens assembly and electronic device provided by this utility model have been described in detail above. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A lens assembly, characterized in that, Includes lens (1) and lens mount (2); The lens (1) is mounted on the lens mount (2), and a glue filling structure for filling and fixing glue (8) is provided between the lens (1) and the lens mount (2). The glue filling structure is filled with fixing glue (8) to fix the lens (1) on the lens mount (2).

2. The lens assembly according to claim 1, characterized in that, The glue filling structure includes an annular protrusion (4) at the bottom end of the lens (1) and an annular groove (6) at the top end of the lens mount (2). Wherein, the annular protrusion (4) is arranged along the circumference of the lens (1), the annular groove (6) is arranged along the circumference of the lens mount (2), the annular protrusion (4) is arranged correspondingly to the annular groove (6), and the annular protrusion (4) is located in the annular groove (6). The fixing adhesive (8) fills the annular groove (6) and covers the annular protrusion (4) so ​​that the lens (1) is fixed on the lens mount (2).

3. The lens assembly according to claim 1, characterized in that, The glue filling structure includes an annular groove (6) at the bottom end of the lens (1) and an annular protrusion (4) at the top end of the lens mount (2). The annular groove (6) is arranged along the circumference of the lens (1), the annular protrusion (4) is arranged along the circumference of the lens mount (2), the annular protrusion (4) is arranged corresponding to the annular groove (6), and the annular protrusion (4) is located in the annular groove (6). The fixing adhesive (8) fills the annular groove (6) and covers the annular protrusion (4) so ​​that the lens (1) is fixed on the lens mount (2).

4. The lens assembly according to claim 2 or 3, characterized in that, The width of the cross-section of the annular protrusion (4) is smaller than the width of the cross-section of the annular groove (6).

5. The lens assembly according to claim 2 or 3, characterized in that, The height of the annular protrusion (4) is equal to the depth of the annular groove (6).

6. The lens assembly according to claim 2 or 3, characterized in that, The annular protrusion (4) is arranged parallel to the annular groove (6).

7. The lens assembly according to claim 2 or 3, characterized in that, The cross-section of the annular protrusion (4) is quadrilateral, and the cross-section of the annular groove (6) is quadrilateral.

8. The lens assembly according to claim 1, characterized in that, The lens (1) has a first hollow cavity inside, in which an optical lens (5) is installed. The lens mount (2) has a second hollow cavity inside, in which an optical sensor (7) is installed. The optical lens (5) and the optical sensor (7) are on the same axis.

9. The lens assembly according to claim 8, characterized in that, An FPC circuit board (3) is also installed at the bottom end of the mirror mount (2), and the FPC circuit board (3) is electrically connected to the optical sensor (7).

10. An electronic device, characterized in that, Includes the lens assembly as described in any one of claims 1-9.

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