CN115696001A - Optical lens, lens assembly and camera module - Google Patents

Abstract

An optical lens, a lens assembly and a camera module are disclosed, wherein the optical lens comprises a lens barrel and a plurality of optical lenses arranged in the lens barrel, wherein the lens barrel comprises a first part and a second part extending downwards from the first part, the outer diameter of the second part is larger than that of the first part, and the outer diameter of the second part forms the maximum outer diameter of the lens barrel; and a first threaded connection structure formed at the first portion, an outer diameter of the first threaded connection structure being equal to or less than a maximum outer diameter of the lens barrel. In this way, the screw portion for mounting the optical lens is provided at a specific position of the lens barrel, so that the optical lens can be stably fixed in the lens carrier by the first screw connection structure without increasing the lateral dimensions of the lens assembly and the camera module.

Description

Optical lens, lens assembly and camera module

Technical Field

The application relates to the field of optical lenses, in particular to an optical lens, a lens assembly and a camera module.

Background

With the development of multimedia technology, digital cameras, video cameras and mobile electronic devices (e.g., smart phones) with cameras are increasingly popular with consumers. Users have increasingly raised requirements for the production cost and product quality of the electronic devices, and accordingly, the stability of the optical lens of the camera module mounted in the lens carrier is a key part affecting the product quality and the production cost.

Therefore, an optimized optical lens is desired to improve the product quality of the lens module.

Disclosure of Invention

An advantage of the present application is to provide an optical lens, a lens assembly, and a camera module that set a threaded portion for mounting the optical lens at a specific position of a lens barrel, so that the optical lens can be stably mounted in a lens carrier by the first threaded connection structure without increasing the lateral dimensions of the lens assembly and the camera module.

Other advantages and features of the present application will become apparent from the following description and may be realized by means of the instrumentalities and combinations particularly pointed out in the appended claims.

To achieve at least one of the above advantages, according to one aspect of the present application, there is provided an optical lens including:

a plurality of optical lenses;

the lens barrel comprises a first part and a second part extending downwards from the first part, wherein the outer diameter of the second part is larger than that of the first part, and the outer diameter of the second part forms the maximum outer diameter of the lens barrel; and

the first threaded connection structure is formed on the first portion, and the outer diameter of the first threaded connection structure is smaller than or equal to the maximum outer diameter of the lens barrel.

In an optical lens according to an embodiment of the present application, the first portion is adjacent to an object side of the optical lens, and the second portion is adjacent to an image side of the optical lens.

In an optical lens according to an embodiment of the present application, the first portion and the second portion are transitioned by an inclined surface.

In an optical lens according to an embodiment of the present application, the optical lens has a structure that is small in top and large in bottom from an object side to an image side thereof.

In an optical lens according to an embodiment of the present application, the first screw connection structure is protrudingly formed at an outer peripheral wall of the first portion.

In an optical lens according to an embodiment of the present application, the first screw connection structure is concavely formed at an outer circumferential wall of the first portion.

According to another aspect of the present application, there is also provided a lens assembly including:

the optical lens as described above; and

the lens carrier comprises a carrier body with a mounting cavity and a second threaded connection structure formed on the inner peripheral wall of the carrier body;

wherein the optical lens is mounted in the mounting cavity of the lens carrier in such a manner that the first threaded connection structure of the optical lens is connected to the second threaded connection structure.

In a lens assembly according to an embodiment of the present application, the mounting cavity has a first inner diameter on an upper side thereof, and the mounting cavity has a second inner diameter on a lower side thereof, the first inner diameter being larger than the second inner diameter.

In the lens assembly according to the embodiment of the present application, the first inner diameter forms a maximum inner diameter of the mounting cavity, the second inner diameter forms a minimum inner diameter of the mounting cavity, and the second threaded connection structure is located between the minimum inner diameter and the maximum inner diameter at a position where the inner circumferential wall of the carrier body is disposed.

In the lens assembly according to the embodiment of the present application, the lens carrier has a large-top and small-bottom structure.

In the lens assembly according to the embodiment of the application, the number of turns of the first threaded connection structure is smaller than that of the second threaded connection structure.

In the lens assembly according to the embodiment of the application, the number of the thread turns of the first thread connection structure is greater than or equal to 2.5 and less than or equal to 3.5.

In the lens assembly according to the embodiment of the present application, the lens assembly further includes an adhesive disposed at an upper end portion of the first threaded connection structure.

In the lens assembly according to the embodiment of the present application, the lens assembly further includes a first glue receiving groove located at an upper end portion of the first threaded connection structure, and the adhesive is disposed in the first glue receiving groove.

In the lens assembly according to an embodiment of the present application, the lens assembly further includes the adhesive disposed at a lower end portion of the first threaded connection structure.

In the lens assembly according to an embodiment of the present application, the lens assembly further includes a second glue receiving groove located at a lower end portion of the first threaded connection structure, and the adhesive is disposed in the second glue receiving groove.

In the lens assembly according to an embodiment of the present application, the lens carrier is a motor carrier.

In the lens assembly according to the embodiment of the application, the optical lens is mounted in a mounting cavity of the lens carrier in a flip-chip manner.

According to still another aspect of the present application, there is also provided a camera module, including:

a photosensitive assembly comprising: the photosensitive chip is electrically connected with the circuit board; and

a lens assembly held on a photosensitive path of the photosensitive assembly;

wherein the lens assembly comprises: the optical lens as described above; the lens carrier comprises a carrier body with a mounting cavity and a second threaded connection structure formed on the inner peripheral wall of the carrier body; the optical lens is arranged in the mounting cavity of the lens carrier in a mode that the first threaded connection structure of the optical lens is connected with the second threaded connection structure of the optical lens.

Further objects and advantages of the present application will become apparent from an understanding of the ensuing description and drawings.

These and other objects, features and advantages of the present application will become more fully apparent from the following detailed description, the accompanying drawings and the claims.

Drawings

The above and other objects, features and advantages of the present application will become more apparent by describing in more detail embodiments of the present application with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings, like reference numbers generally indicate like parts or steps.

Fig. 1 illustrates a schematic diagram of a camera module according to an embodiment of the present application.

Fig. 2 illustrates a schematic view of a lens assembly of the camera module according to an embodiment of the present application.

Fig. 3 illustrates a schematic diagram of an optical lens of the lens assembly according to an embodiment of the present application.

Fig. 4 illustrates a partially enlarged schematic view of the lens assembly according to an embodiment of the present application.

Fig. 5 illustrates a schematic diagram of a variant implementation of the lens assembly according to an embodiment of the present application.

Detailed Description

Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are only some embodiments of the present application and not all embodiments of the present application, and that the present application is not limited by the example embodiments described herein.

Summary of the application

As mentioned above, the stability of the installation of the optical lens of the camera module in the lens carrier is a key part affecting the quality of the product and the production cost. Therefore, an optimized optical lens is desired to improve the product quality of the lens module.

More specifically, a lens assembly of a conventional camera module includes an optical lens and a lens carrier for supporting the optical lens, wherein the optical lens is mounted in the lens carrier. One conventional method is to mount the optical lens in the lens carrier by an adhesive, that is, to mount the optical lens in a mounting cavity of the lens carrier and then to arrange the adhesive between the optical lens and the lens carrier to fix the optical lens to the lens carrier after the adhesive is cured. However, this approach has a number of drawbacks.

First, the amount of adhesive used is large. That is, a large amount of glue needs to be poured between the optical lens and the lens carrier, which increases the cost. Besides, the cost is increased, and the glue is difficult to be uniformly distributed in the glue filling process due to the large using amount of the adhesive, so that the glue is cured: glue crack, eccentricity, field curvature and the like.

In order to solve the technical problem caused by glue fixation, another current method is to fix the optical lens to the lens carrier by using a threaded connection, that is, a threaded connection structure is respectively disposed on the outer peripheral wall of the optical lens and the inner side wall of the lens carrier, so as to fix the optical lens in the lens carrier by thread engagement. Compared with the fixation through glue, the lens assembly adopting the threaded connection has better balance and is more stable. There are also problems with using threaded connections.

In particular, the presence of the screw thread increases the size (especially the transverse size) of the lens assembly, which is not compatible with the development of camera modules towards miniaturization. In view of the above-mentioned technical problems, the inventors of the present application have observed that, in the optical design of an optical lens, the size of the lens near the image side in the optical lens is generally large (usually largest), while the size of the lens near the object side in the optical lens is generally small, that is, the portion of the lens barrel near the lower end in the optical lens forms the largest outer diameter of the optical lens. In view of the characteristic of such size configuration of the optical lens, the technical idea of the present application is: the threaded portion for mounting the optical lens is provided at a specific position of the lens barrel to ensure that the arrangement of the threaded portion does not increase the maximum outer diameter dimension of the optical lens, so that, on the one hand, the optical lens can be stably fixed in the lens carrier by the first threaded connection structure, and, on the other hand, the lateral dimensions of the lens assembly and the camera module are not increased.

Based on this, the present application provides an optical lens including a plurality of pieces of optical lenses; the lens barrel comprises a first part and a second part extending downwards from the first part, wherein the outer diameter of the second part is larger than that of the first part, and the outer diameter of the second part forms the maximum outer diameter of the lens barrel; and a first screw connection structure formed at the first portion, an outer diameter of the first screw connection structure being equal to or less than a maximum outer diameter of the lens barrel

Based on this, the present application also provides a lens assembly, which includes: the optical lens as described above; the lens carrier comprises a carrier body with a mounting cavity and a second threaded connection structure formed on the inner peripheral wall of the carrier body; the optical lens is arranged in the mounting cavity of the lens carrier in a mode that the first threaded connection structure of the optical lens is connected with the second threaded connection structure of the optical lens.

Having described the general principles of the present application, various non-limiting embodiments of the present application will now be described with reference to the accompanying drawings.

Exemplary Camera Module

As shown in fig. 1, a camera module according to an embodiment of the present application is illustrated, which includes a photosensitive member 10 and a lens member 20 held on a photosensitive path of the photosensitive member 10. As shown in fig. 1, the photosensitive assembly 10 includes a circuit board 11, a photosensitive chip 12, a bracket 13 and a filter element 14, wherein the circuit board 11 serves as a mounting substrate of the photosensitive assembly 10. In the embodiment of the present application, the photosensitive chip 12 is electrically connected to the circuit board 11 (for example, the photosensitive chip 12 is electrically connected to the circuit board 11 through a lead), so as to provide the circuit board 11 with a control circuit and electric energy required by the operation of the photosensitive chip 12.

The support 13 is disposed on the circuit board 11 for supporting other components, wherein the support 13 has an optical window corresponding to at least a photosensitive area of the photosensitive chip 12. For example, in some specific examples of the present application, the filter element 14 may be mounted on the support 13, so that the filter element 14 is maintained on a photosensitive path of the photosensitive chip 12, so that, in a process that the external light passes through the filter element 14 to reach the photosensitive chip 12, stray light in the external light can be filtered by the filter element 14, so as to improve imaging quality. In a specific implementation, the type of the bracket 13 is not limited by the present application, and includes a separate bracket (i.e., two parts separate from the circuit board 11), or a one-piece bracket (e.g., a molded bracket, etc.) integrally formed with the circuit board 11 by a molding or injection molding process.

It should be noted that in other examples of the present application, the filter element 14 can also be mounted on the bracket 13 in other manners, for example, the bracket 13 of the filter element 14 is firstly arranged on the bracket 13, and then the filter element 14 is mounted on the bracket 13 of the filter element 14, that is, in this example, the filter element 14 can be indirectly mounted on the bracket 13 through other supporting members. Of course, in other examples of the present application, the filter element 14 can also be installed at other positions of the camera module, for example, the filter element 14 can be implemented as a filter film and attached to a surface of one optical lens of the optical lens, which is not limited by the present application.

As shown in fig. 2 and 3, in the embodiment of the present application, the lens assembly 20 includes a lens carrier 21 and an optical lens 22 mounted in the lens carrier 21. Specifically, in the embodiment of the present application, the optical lens 22 includes a lens barrel 221 and at least one optical lens 222 installed in the lens barrel 221. Those skilled in the art will appreciate that the resolution of the optical lens 22 is proportional to the number of the optical lenses 222, i.e., the higher the resolution, the greater the number of the optical lenses 222. Therefore, preferably, in the embodiment of the present application, the optical lens 22 includes a plurality of optical lenses 222, for example, 4, 5, or 6 optical lenses 222.

As shown in fig. 2 and 3, in the embodiment of the present application, the lens carrier 21 has a mounting cavity 210, and the optical lens 22 is mounted and fixed in the mounting cavity 210 of the lens carrier 21 by means of a threaded connection.

It should be noted that, in the embodiment of the present application, the type of the camera module is not limited by the present application. Accordingly, when the camera module is a fixed focus camera module, the lens carrier 21 is a fixed lens carrier 21, for example, the lens carrier 21 is implemented as a lens holder installed on the holder 13, and is used for installing the optical lens 22 therein, so that the optical lens 22 and the photosensitive chip 12 have a predetermined distance therebetween, as shown in fig. 5. Accordingly, when the camera module is a movable camera module (e.g., a camera module with an auto-focus function, a camera module with an optical anti-shake function), the lens carrier 21 is implemented as a driving element (e.g., a voice coil motor, a memory metal alloy motor, etc.) for carrying the optical lens 22 therein and driving the optical lens 22 to change the relative position relationship between the optical lens 22 and the photo sensor chip 12, so as to adjust the optical performance, as shown in fig. 1. That is, in the embodiment of the present application, the lens carrier 21 includes, but is not limited to: a fixed lens mount and a movable drive carrier (e.g., a motor carrier, etc.).

Further, as described above, the inventor of the present application has observed that according to the requirements of the optical lens 22, the optical lens 22 has a larger size of the optical lens 222 near the image side and a smaller size of the optical lens 222 near the object side, so that if the lens barrel 221 size configuration of the optical lens 22 is observed from top to bottom, it is found that there are two vertically adjacent portions in the lens barrel 221, wherein the lower portion is larger than the upper portion to form a divergent structure. For convenience of description, in the present embodiment, the lower portion is defined as the second portion 224, and the upper portion is defined as the first portion 223, that is, in the present embodiment, the lens barrel 221 includes the first portion 223 and the second portion 224 extending downward from the first portion 223, and the outer diameter of the second portion 224 is larger than that of the first portion 223. Also, in the present embodiment, the outer diameter of the second portion 224 forms the maximum outer diameter of the lens barrel 221.

That is, in the embodiment of the present application, the lens barrel 221 has a special size configuration: the lens barrel 221 has a first portion 223 and a second portion 224 which are adjacent to each other up and down, wherein the outer diameter of the second portion 224 located below is larger than the outer diameter of the first portion 223 located above, and the outer diameter of the second portion 224 forms the maximum outer diameter of the lens barrel 221.

It should be noted that, in the embodiment of the present application, the first portion 223 and the second portion 224 do not refer to a specific portion of the lens barrel 221, but refer to that the second portion 224 is a portion of the lens barrel 221 having the largest outer diameter, and the first portion 223 is a portion extending upward and inward from the second portion 224. It should be understood that, in the embodiment of the present application, the lens barrel 221 may have other portions above the first portion 223, and the lens barrel 221 may have other portions below the second portion 224, which is not limited by the present application.

In particular, in one specific example of the present application, the optical lens 22 has a structure with a smaller upper portion and a larger lower portion from the object side to the image side of the optical lens 22, wherein the first portion 223 is adjacent to the object side of the optical lens 22, and the second portion 224 is adjacent to the image side of the optical lens 22. In addition, in order to facilitate the molding of the lens barrel 221 and improve the overall strength of the lens barrel 221, the first portion 223 and the second portion 224 are in a transition with an inclined surface. If seen from the height direction of the barrel 221, the first portion 223 is located in the middle area of the barrel 221 in this example.

Further, in the embodiment of the present application, the first threaded connection structure 225 is selected to be disposed on the first portion 223, and an outer diameter of the first threaded connection structure 225 is smaller than or equal to the maximum outer diameter of the lens barrel 221. That is, in the embodiment of the present application, the first screw connection structure 225 is disposed on the first portion 223 of the lens barrel 221, which is relatively small in size (i.e., no screw connection portion is disposed on the portion of the lens barrel 221 having the largest outer diameter), by making full use of the dimensional configuration characteristics of the lens barrel 221, and the outer diameter of the first screw connection structure 225 is smaller than or equal to the largest outer diameter of the optical lens 22 (or the lens barrel 221), so that the increase of the transverse size of the camera module is effectively avoided, and the development requirement of miniaturization thereof is satisfied.

Accordingly, as shown in fig. 2 and 4, in the embodiment of the present application, the lens carrier 21 includes a carrier body 211 having a mounting cavity 210 and a second thread connection structure 212 formed on an inner peripheral wall of the carrier body 211; wherein the optical lens 22 is mounted in the mounting cavity 210 of the lens carrier 21 in such a way that the first screw connection structure 225 thereof is connected to the second screw connection structure 212.

It should be noted that in order to adapt to the particular dimensional configuration of the optical lens 22, in one specific example, the lens carrier 21 has a configuration that is large at the top and small at the bottom, i.e. the mounting cavity 210 has a first inner diameter at its upper side and the mounting cavity 210 has a second inner diameter at its lower side, the first inner diameter being larger than the second inner diameter. Also, the first inner diameter forms a maximum inner diameter of the mounting cavity 210, the second inner diameter forms a minimum inner diameter of the mounting cavity 210, and the second screw coupling structure 212 is located between the minimum inner diameter and the maximum inner diameter at a position where the inner circumferential wall of the carrier body 211 is disposed. Thus, during the mounting process, the optical lens 22 is flip-chip mounted in the mounting cavity 210 of the lens carrier 21. Here, the fact that the optical lens 22 is flip-chip mounted in the mounting cavity 210 of the lens carrier 21 means that the optical lens 22 is mounted in the mounting cavity 210 of the lens carrier 21 in the order of the object side portion thereof and the image side portion thereof.

It is worth mentioning that when the optical lens 22 is mounted in the mounting cavity 210 of the lens carrier 21 in a flip-chip manner, it can be effectively avoided that debris generated by thread friction (or other friction) falls into the camera module and then causes contamination to affect the imaging effect.

It should also be noted that in an implementation, the second screw connection structure 212 may be formed in an upper region, a middle region or a lower region of the lens carrier 21, and preferably, in an upper region of the lens carrier 21.

Further, in the embodiment of the present application, as shown in fig. 2 and 3, the first screw connection structure 225 is concavely formed on the outer peripheral wall of the first portion 223, that is, the first screw connection structure 225 extends inward from the outer peripheral wall of the first portion 223, so that the outer diameter of the first screw connection structure 225 is equal to or smaller than the outer diameter of the first portion 223, and of course, is equal to or smaller than the outer diameter of the second portion 224 (i.e., the maximum outer diameter of the optical lens 22).

It should be noted that in other examples of the present application, the first threaded connection structure 225 may also be protrudingly formed on the outer peripheral wall of the first portion 223, that is, the first threaded connection structure 225 extends outward from the outer peripheral wall of the first portion 223, so that although the outer diameter of the first threaded connection structure 225 is larger than the outer diameter of the first portion 223, as long as the outer diameters of the first portion 223 and the second portion 224 are greatly different, the outer diameter of the first threaded connection structure 225 can be equal to or smaller than the outer diameter of the second portion 224 (that is, the maximum outer diameter of the optical lens 22).

In the embodiment of the present application, the second thread connection structure 212 may also be protrudingly formed on the inner peripheral wall of the lens carrier 21, or concavely formed on the inner peripheral wall of the lens carrier 21, which is not limited by the present application, and it is only necessary that the first thread connection structure 225 can cooperate with the second thread connection structure 212 to fix the optical lens 22 in the installation cavity 210 of the lens carrier 21.

In order to enable the optical lens 22 to be stably fixed in the mounting cavity 210 of the lens carrier 21 by engagement of the sum of the first threaded connection structure 225 and the second threaded connection structure 212, it is preferable that the number of times of mutual engagement in the first threaded connection structure 225 and the second threaded connection structure 212 is greater than or equal to 2.5 to ensure engagement strength and stability.

Preferably, in the embodiment of the present application, the number of turns of the first thread connection structure 225 is smaller than that of the second thread connection structure 212, so that the position of the optical lens 22 in the mounting cavity 210 of the lens carrier 21 can be adjusted. That is, in the present embodiment, the first threaded connection 225 is completely engaged with the second threaded connection 212. In a specific design, preferably, the number of turns of the first thread connection structure 225 is greater than or equal to 2.5 and less than or equal to 3.5, and the number of turns of the second thread connection structure 212 is greater than the number of turns of the first thread connection structure 225 by 1-2 turns.

To further ensure the locking strength between the optical lens 22 and the lens carrier 21, in some examples of the present application, a glue may be optionally applied to the upper end and/or the lower end of the first threaded connection structure 225 for secondary fixation (or reinforcing fixation) by an adhesive. In particular, in the claimed embodiment, the excess thread of the second thread connection structure 212 cooperates with the outer peripheral wall of the lens barrel 221 to form a glue receiving groove, so as to facilitate the application of the adhesive 23. That is, in the embodiment of the present application, the second screw connection structure 212 not only participates in the screw connection, but also plays a role of constructing a glue receiving groove.

That is, in the embodiment of the present application, the lens assembly 20 further includes a first glue receiving groove 213 located at an upper end portion of the first threaded connection structure 225, and the adhesive 23 is disposed in the first glue receiving groove 213, wherein the first glue receiving groove 213 is formed by the upper threaded portion of the second threaded connection structure 212 and the outer peripheral wall of the lens barrel 221. And/or the lens assembly 20 further includes a second glue containing groove 214 located at a lower end portion of the first threaded connection structure 225, and the adhesive 23 is disposed in the second glue containing groove 214, wherein the second glue containing groove 214 is formed by a lower threaded portion of the second threaded connection structure 212 and an outer peripheral wall of the lens barrel 221 in a matching manner.

More specifically, in a specific example of the present application, each turn of the first threaded connection structure 225 has a thread, and the cross-sectional shape of the thread may be triangular, trapezoidal, or other shapes, which is not limited in the present application. In the present application, the pitch of the thread is 0.2mm to 0.25mm, and the diameter of the thread is 8.4mm. In the present application, the number of threads of the first screw connection structure 225 (or the number of teeth of the optical lens 22) is 2.5 to 3, and preferably, the number of threads of the first screw connection structure 225 is 2.5. Correspondingly, each turn of the second threaded connection structure 212 has a thread, and the cross-sectional shape of the thread may be pointed, trapezoidal or other shapes, which is not limited in the present application. In the present application, the pitch of the thread is 0.2mm to 0.25mm, and the diameter of the thread is 8.4mm. In this application, the number of threads of the second threaded connection structure 212 is greater than the number of threads of the first threaded connection structure 225, so that the camera module can be fixed by dispensing through the redundant threads of the second threaded connection structure 212. The number of threads (or the number of teeth of the carrier) of the second screw coupling structure 212 may be determined according to the height of the motor carrier and the size of the module, and in this application, the number of threads of the second screw coupling structure 212 is 4-6, and preferably, the number of threads of the second screw coupling structure 212 is 5.

In summary, the image pickup module according to the embodiment of the present application is illustrated, which guides the adhesive 23 to be disposed by providing the limiting guide portion between the optical lens 22 and the lens carrier 21, so that the adhesive 23 can be relatively more uniformly distributed in the gap between the optical lens 22 and the lens carrier 21, and thus the stress distribution between the optical lens 22 and the lens carrier 21 after the adhesive 23 is cured can be more uniform and the centering degree of the optical lens 22 can be higher.

Exemplary optical lens

According to another aspect of the present application, there is also provided an optical lens 22 including: a plurality of optical lenses 222; a barrel 221 in which the plurality of optical lenses 222 are mounted, wherein the barrel 221 includes a first portion 223 and a second portion 224 extending downward from the first portion 223, an outer diameter of the second portion 224 is larger than an outer diameter of the first portion 223, and the outer diameter of the second portion 224 forms a maximum outer diameter of the barrel 221; and a first screw-coupling structure 225 formed at the first portion 223, an outer diameter of the first screw-coupling structure 225 being equal to or less than a maximum outer diameter of the lens barrel 221.

In the optical lens 22, in a specific example, the first portion 223 is adjacent to an object side of the optical lens 22, and the second portion 224 is adjacent to an image side of the optical lens 22.

In the optical lens 22, in a specific example, the first portion 223 and the second portion 224 are in a transition with an inclined surface.

In the above-described optical lens 22, in a specific example, the optical lens 22 has a structure that is small in top and large in bottom from the object side to the image side thereof.

In the above-described optical lens 22, in a specific example, the first screw connection structure 225 is protrudingly formed in the outer peripheral wall of the first portion 223.

In the optical lens 22 described above, in a specific example, the first screw connection structure 225 is concavely formed in the outer peripheral wall of the first portion 223.

An optical lens 22 according to an embodiment of the present application is illustrated, which has a threaded portion for mounting the optical lens 22 at a specific position of the lens barrel 221, so that the optical lens 22 can be stably fixed in the lens carrier 21 by the first threaded connection structure 225 without increasing the lateral dimensions of the lens assembly 20 and the camera module.

Exemplary lens Assembly

According to another aspect of the present application, there is also provided a lens assembly 20, including: the optical lens 22 as described above; and a lens carrier 21 including a carrier body 211 having a mounting cavity 210 and a second screw coupling structure 212 formed at an inner circumferential wall of the carrier body 211; wherein the optical lens 22 is mounted in the mounting cavity 210 of the lens carrier 21 in such a way that the first screw connection structure 225 is connected to the second screw connection structure 212.

In the lens assembly 20 according to the present application, in a specific example, the mounting cavity 210 has a first inner diameter on an upper side thereof, and the mounting cavity 210 has a second inner diameter on a lower side thereof, and the first inner diameter is larger than the second inner diameter.

In the lens assembly 20 according to the present application, in a specific example, the first inner diameter forms a maximum inner diameter of the mounting cavity 210, the second inner diameter forms a minimum inner diameter of the mounting cavity 210, and the second threaded connection structure 212 is located between the minimum inner diameter and the maximum inner diameter at a position where the inner peripheral wall of the carrier body 211 is disposed.

In the lens assembly 20 according to the present application, in a specific example, the lens carrier 21 has a large-top and small-bottom structure.

In the lens assembly 20 according to the present application, in a specific example, the number of turns of the first threaded connection structure 225 is smaller than the number of turns of the second threaded connection structure 212.

In the lens assembly 20 according to the present application, in a specific example, the number of the thread turns of the first thread connection structure 225 is greater than or equal to 2.5 and less than or equal to 3.5.

In the lens assembly 20 according to the present application, in a specific example, the lens assembly 20 further includes an adhesive 23 disposed at an upper end portion of the first threaded connection structure 225.

In the lens assembly 20 according to the present application, in a specific example, the lens assembly 20 further includes a first glue receiving groove 213 located at an upper end portion of the first threaded connection structure 225, and the adhesive 23 is disposed in the first glue receiving groove 213.

In the lens assembly 20 according to the present application, in a specific example, the lens assembly 20 further includes the adhesive 23 disposed at a lower end portion of the first threaded connection structure 225.

In the lens assembly 20 according to the present application, in a specific example, the lens assembly 20 further includes a second glue receiving groove 214 located at a lower end portion of the first threaded connection structure 225, and the adhesive 23 is disposed in the second glue receiving groove 214.

In the lens assembly 20 according to the present application, in a specific example, the lens carrier 21 is a motor carrier.

In the lens assembly 20 according to the present application, in a specific example, the optical lens 22 is flip-chip mounted in the mounting cavity 210 of the lens carrier 21.

In summary, the lens assembly 20 according to the embodiment of the present application is illustrated, which arranges the screw portion for mounting the optical lens 22 at a specific position of the lens barrel 221 to ensure that the arrangement of the screw portion does not increase the maximum outer diameter dimension of the optical lens 22, so that, on the one hand, the optical lens 22 can be stably fixed in the lens carrier 21 by the first screw connection structure 225, and, on the other hand, the transverse dimensions of the lens assembly 20 and the camera module are not increased.

The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is provided for purposes of illustration and understanding only, and is not intended to limit the application to the details which are set forth in order to provide a thorough understanding of the present application.

Claims (19)

1. An optical lens, comprising:

a plurality of optical lenses;

the lens barrel comprises a first part and a second part extending downwards from the first part, wherein the outer diameter of the second part is larger than that of the first part, and the outer diameter of the second part forms the maximum outer diameter of the lens barrel; and

the first threaded connection structure is formed on the first portion, and the outer diameter of the first threaded connection structure is smaller than or equal to the maximum outer diameter of the lens barrel.

2. The optical lens of claim 1, wherein the first portion is adjacent to an object side of the optical lens and the second portion is adjacent to an image side of the optical lens.

3. An optical lens according to claim 2, wherein the first portion and the second portion transition with an inclined surface therebetween.

4. The optical lens according to claim 3, wherein the optical lens has a structure that is small in top and large in bottom from an object side thereof to an image side thereof.

5. The optical lens according to claim 1, wherein the first screw connection structure is protrudingly formed at an outer peripheral wall of the first portion.

6. The lens assembly of claim 1, wherein the first threaded connection is concavely formed in a peripheral wall of the first portion.

7. A lens assembly, comprising:

an optical lens according to any one of claims 1 to 6; and

the lens carrier comprises a carrier body with a mounting cavity and a second threaded connection structure formed on the inner peripheral wall of the carrier body;

the optical lens is arranged in the mounting cavity of the lens carrier in a mode that the first threaded connection structure of the optical lens is connected with the second threaded connection structure of the optical lens.

8. The lens assembly of claim 7, wherein the mounting cavity has a first inner diameter on an upper side thereof and a second inner diameter on a lower side thereof, the first inner diameter being greater than the second inner diameter.

9. The lens assembly of claim 8, wherein the first inner diameter forms a maximum inner diameter of the mounting cavity and the second inner diameter forms a minimum inner diameter of the mounting cavity, the second threaded connection being located between the minimum inner diameter and the maximum inner diameter at a location of the inner peripheral wall of the carrier body.

10. The lens assembly of claim 9, wherein the lens carrier has a large-top-small configuration.

11. The lens assembly of claim 7, wherein the first threaded connection has a number of threads that is less than a number of threads of the second threaded connection.

12. The lens assembly of claim 11, wherein the first threaded connection has a number of turns greater than or equal to 2.5 and less than or equal to 3.5.

13. The lens assembly of claim 12, further comprising an adhesive disposed on an upper end of the first threaded connection.

14. The lens assembly of claim 13, further comprising a first glue-receiving groove located at an upper end of the first threaded connection, the adhesive being disposed in the first glue-receiving groove.

15. The lens assembly of claim 13, further comprising the adhesive disposed at a lower end of the first threaded connection.

16. The lens assembly of claim 15, further comprising a second glue receiving groove located at a lower end of the first threaded connection, the adhesive being disposed in the second glue receiving groove.

17. The camera module of claim 7, wherein the lens carrier is a motor carrier.

18. The camera module of claim 10, wherein the optical lens is flip-chip mounted within a mounting cavity of the lens carrier.

19. The utility model provides a module of making a video recording which characterized in that includes:

photosensitive assembly, includes: the circuit board and the photosensitive chip are electrically connected with the circuit board; and

a lens assembly held on a photosensitive path of the photosensitive assembly;

wherein the lens assembly includes: an optical lens according to any one of claims 1 to 6; the lens carrier comprises a carrier body with a mounting cavity and a second threaded connection structure formed on the inner peripheral wall of the carrier body; the optical lens is arranged in the mounting cavity of the lens carrier in a mode that the first threaded connection structure of the optical lens is connected with the second threaded connection structure of the optical lens.

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