WO2023016276A1

WO2023016276A1 - Camera module

Info

Publication number: WO2023016276A1
Application number: PCT/CN2022/108797
Authority: WO
Inventors: 叶林敏; 黄桢; 刘春梅; 俞丝丝; 曾俊杰
Original assignee: 宁波舜宇光电信息有限公司
Priority date: 2021-08-12
Filing date: 2022-07-29
Publication date: 2023-02-16
Also published as: CN116047704A

Abstract

A camera module (300), comprising a photosensitive assembly (10), and at least two lens parts (21, 22), which are coaxially arranged. When in an operation state, the relative positional relationship between the at least two lens parts (21, 22) is adjusted by means of a driving assembly (30), such that the effective focal length of an optical system formed by the at least two lens parts (21, 22) is within a preset range. When not in the operation state, the camera module (300) has a relatively small height; and when in the operation state, the camera module (300) has a relatively large effective focal length. In this way, the technical contradiction between the overall height and a relatively large effective focal length of a traditional non-folded camera module is solved. Moreover, the driving assembly (30) is rationally arranged, such that a driver for driving the photosensitive assembly (10) and a driver for driving the lens part (22) can share driving components, thus making full use of the internal space of the camera module (300), and reducing the height of the camera module (300).

Description

camera module

technical field

This application relates to the field of camera modules, in particular to the camera module which has a relatively small height in the non-working state and a relatively large effective focal length in the working state, so as to solve the problem of the overall height and relatively large size of the camera module. Technical contradictions between large effective focal lengths.

Background technique

With the popularization of mobile electronic devices, technologies related to camera modules used in mobile electronic devices to help users acquire images (eg, video or images) have been rapidly developed and improved. Currently in the market, camera modules configured in mobile electronic devices (eg, smart phones) need to realize the multi-zoom shooting function.

In order to meet the technical requirements of multi-zoom shooting or telephoto shooting, at least one telephoto camera module needs to be configured. Here, the telephoto camera module refers to a camera module with a larger effective focal length. As the zoom factor increases, the total effective focal length of the telephoto camera module will increase accordingly, leading to an increase in the overall height of the camera module, which is obviously difficult to meet the development trend of thinner and lighter electronic devices.

In order to solve the technical contradiction between the height dimension and the large effective focal length of the traditional vertical camera module, most manufacturers adopt the periscope camera module to replace the traditional vertical camera module. Compared with the traditional upright camera module, the periscope camera module changes its imaging optical path through light deflection elements (such as prisms, mirrors, etc.), so as to reduce the overall height and size of the camera module and meet the requirements of Optical design requirements for larger effective focal lengths.

However, the periscope camera module has a relatively more complex structure, which on the one hand leads to an increase in its cost, and on the other hand directly leads to an increase in its process difficulty. In addition, the periscope camera module is reduced in height at the expense of the size in the length and width directions, and the periscope camera module with a large length and width is not beautiful on the terminal device , affecting the user experience.

Also, in terms of optical performance, although the periscope camera module has a relatively large effective focal length, its effective focal length is a fixed value, that is, the optical performance of the periscope camera module has a relatively poor adjustable sex. In order to meet the diverse needs of consumers for camera modules, it is usually necessary to configure multiple camera modules for electronic devices, that is, to configure multi-camera camera modules for electronic devices, which not only brings a sharp increase in cost, but also further aggravates the Increased the difficulty of the process.

Therefore, an optimized camera module solution is needed to solve the technical contradiction between the height dimension and the larger effective focal length of the camera module.

Contents of the invention

An advantage of the present application is to provide a camera module, wherein the camera module staggers the contradiction between the overall height of the vertical camera module and the larger effective focal length by adjusting its height in different states. Specifically, the camera module has a relatively small height in the non-working state, and has a relatively large effective focal length in the working state, so as to meet the requirements of the terminal device for the camera module in the non-working state. The requirements for the overall height and size of the camera module meet the requirements for a larger effective focal length of the camera module in the working state.

Another advantage of the present application is to provide a camera module, wherein the camera module uses a split lens including at least two lens parts as its imaging lens, and the driver adjusts the at least two lens parts in the working state. The relative positional relationship between the two lens parts is such that the effective focal length of the optical system formed by the at least two lens parts is within a preset range, so that the camera module has a relatively small height in a non-working state. Size, the camera module has a relatively large effective focal length in the working state. In this way, the technical contradiction between the overall height and large effective focal length of the traditional upright camera module is resolved.

Another advantage of the present application is to provide a camera module, wherein the camera module satisfies the size requirement of the camera module by rationally arranging the drivers. Specifically, by rationally arranging the drivers, the driver for driving the lens part and the driver for driving the photosensitive component can share the driving components, so as to make full use of the internal space of the camera module and reduce the height of the camera module.

Other advantages and features of the present application will become apparent through the following description, and can be realized by the means and combinations particularly pointed out in the claims.

In order to achieve at least one of the above advantages, the present application provides a camera module, which includes:

Photosensitive components;

An optical lens held on the photosensitive path of the photosensitive component, wherein the optical lens is provided with an optical axis and includes a first lens part and a second lens part coaxially arranged along the optical axis, the there is a gap between the first lens portion and the second lens portion; and

a drive assembly comprising a first drive element, a second drive element and a third drive element;

Wherein, the first driving element is configured to drive the first lens part to move along the direction set by the optical axis; the second driving element is configured to drive the second lens part to move along the direction set by the optical axis. moving in a direction set by the optical axis; and, the third driving element is configured to drive the photosensitive assembly to move in a plane perpendicular to the optical axis;

Wherein, the second driving element and the third driving element are disposed adjacently up and down, and the second driving element and the third driving element share at least one magnet.

In the camera module according to the present application, the first driving element is configured to drive the first lens part to move along the direction set by the optical axis to adjust the first lens part and the second lens part. The two lens parts reach a predetermined position, and at the predetermined position, the effective focal length of the optical system formed by the first lens part and the second lens part is within a preset range.

In the camera module according to the present application, the second driving element is configured to drive the first lens part and the second lens part to the predetermined position after the first driving element adjusts the The second lens part moves along the direction set by the optical axis to perform optical focusing; wherein, in the process of driving the second lens part to move by the second driving element, the first lens part The effective focal length of the optical system formed with the second lens part remains within the preset range.

In the camera module according to the present application, the second driving element is configured to drive the first lens part and the second lens part to the predetermined position after the first driving element adjusts the The second lens part moves along the direction set by the optical axis to perform optical zooming.

In the camera module according to the present application, the second driving element and the third driving element are implemented as electromagnetic actuators, and the second driving element includes a second driving carrier having a second lens mounting cavity , a second coil installed on the side of the second drive carrier and a second magnet corresponding to the second coil, the second lens part is installed in the second lens installation cavity; the first The three drive elements include a third drive carrier, a third coil arranged at the bottom of the third drive carrier and a third magnet corresponding to the third coil, and the photosensitive assembly is installed on the third drive carrier ; Wherein, the third magnet and the second magnet are the same magnet.

In the camera module according to the present application, the third magnet and the third coil are located on the first side of the third driving carrier, and the third magnet and the third coil are configured to drive the The third driving carrier moves in a first direction in a plane perpendicular to the optical axis.

In the camera module according to the present application, the third drive element further includes a fourth coil disposed on the bottom of the third drive carrier and located on the second side opposite to the first side and corresponding to the The fourth magnet of the fourth coil; wherein, the height dimension of the third magnet is larger than the height dimension of the fourth magnet.

In the camera module according to the present application, the third drive element further includes a fifth coil disposed on the bottom of the drive carrier and located on the third side adjacent to the first side and corresponding to the fifth coil. The fifth magnet of five coils, wherein the height dimension of the fifth magnet is equal to the height dimension of the fourth magnet and smaller than the height dimension of the third magnet.

In the camera module according to the present application, the third driving element further includes a sixth coil disposed on the bottom of the driving carrier and located on the fourth side adjacent to the first side and corresponding to the sixth coil. The sixth magnet with six coils, wherein the height dimension of the sixth magnet is the same as the height dimension of the fourth magnet and the fifth magnet but smaller than the height dimension of the third magnet.

In the camera module according to the present application, the third coil, the fourth coil, the fifth coil and the sixth coil are located on the same horizontal plane.

In the camera module according to the present application, the camera module further includes a position-limiting and isolating component arranged between the first driving element and the second driving component, wherein the position-limiting and isolating component is configured A maximum height for limiting the upward movement of the second lens portion.

In the camera module according to the present application, the position-limiting isolation part includes an isolation part formed around the second lens part, and the second driving element installed with the second lens part is located in the isolation part. within the section.

In the camera module according to the present application, the limiting and isolating part further includes a limiting part integrally extending upward from the isolating element, and the limiting part has a limiting cavity formed on its side for The movement of the second lens part in the limiting cavity is constrained.

In the camera module according to the present application, the second drive carrier includes a limiting head extending outward from its outer periphery and protruding into the limiting cavity.

In the camera module according to the present application, the isolation part has a mounting part formed at a side thereof, and the second magnet is fixed to the mounting part.

In the camera module according to the present application, the second driving element further includes a ball-sliding groove structure disposed between the second driving carrier and the limiting and isolating component.

In the camera module according to the present application, the ball-sliding groove structure and the second coil are located on the same side of the second driving carrier.

In the camera module according to the present application, the ball-sliding groove structure and the second coil are located on opposite sides of the second driving carrier.

In the camera module according to the present application, the photosensitive assembly includes a circuit board assembly and a mirror base, the circuit board assembly includes a circuit board and a photosensitive chip electrically connected to the circuit board, and the circuit board assembly is installed on on the third drive carrier.

In the camera module according to the present application, the mirror base is installed on the third drive carrier, wherein the mirror base has a light hole corresponding to at least part of the photosensitive area of the photosensitive chip, corresponding to The first slot of the third magnet, the second slot corresponding to the fourth magnet, the third slot corresponding to the fifth magnet, and the fourth slot corresponding to the sixth magnet.

In the camera module according to the present application, the photosensitive assembly further includes at least one ball-sliding groove structure disposed between the third drive carrier and the mirror holder.

Further objects and advantages of the present application will fully emerge from an understanding of the ensuing description and accompanying drawings.

These and other objects, features and advantages of the present application are fully realized by the following detailed description, drawings and claims.

Description of drawings

The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of the embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the present application, and do not constitute limitations to the present application. In the drawings, the same reference numerals generally represent the same components or steps.

FIG. 1 illustrates a schematic perspective view of a camera module in a non-working state according to an embodiment of the present application.

Fig. 2 illustrates a three-dimensional exploded view of the camera module according to an embodiment of the present application.

Fig. 3 illustrates a schematic cross-sectional view of the camera module according to an embodiment of the present application.

Fig. 4 illustrates a schematic perspective view of the camera module switching from a non-working state to a working state according to an embodiment of the present application.

Fig. 5 illustrates one of the partial three-dimensional schematic diagrams of the camera module according to the embodiment of the present application.

Fig. 6 illustrates the second partial perspective view of the camera module according to the embodiment of the present application.

FIG. 7 illustrates the third partial perspective view of the camera module according to the embodiment of the present application.

FIG. 8 illustrates a fourth partial perspective view of the camera module according to an embodiment of the present application.

FIG. 9 illustrates one of schematic diagrams of an electronic device according to an embodiment of the present application.

Fig. 10 shows the second schematic diagram of the electronic device according to the embodiment of the present application.

Detailed ways

Hereinafter, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described here.

Exemplary Camera Module

As shown in FIGS. 1 to 8 , a camera module 300 according to an embodiment of the present application is illustrated, wherein the camera module 300 includes a photosensitive component 10 , an optical sensor held on the photosensitive path of the photosensitive component 10 The lens 20, and the drive assembly 30 for driving the optical lens 20 and the photosensitive assembly 10 to move for optical performance adjustment. In particular, in the embodiment of the present application, the optical lens 20 and the driving assembly 30 have a special structural configuration so that the working state and the non-working state of the camera module 300 can be switched, wherein, in the non-working state The camera module 300 has a relatively small height, and in the working state, the camera module 300 has a relatively large effective focal length, so as to solve the problem of the overall height and large effective focal length of the traditional upright camera module 300. technical conflicts. And, through the reasonable layout of the drive assembly 30, the driver for driving the optical lens 20 and the driver for driving the photosensitive assembly 10 can share the drive components, so as to make full use of the internal space of the camera module 300 and reduce the number of the camera module 300. The height dimension of the module 300.

Correspondingly, as shown in FIGS. 1 to 3 , in the embodiment of the present application, the photosensitive assembly 10 includes a circuit board assembly 11 and a mirror holder 12 . The circuit board assembly 11 includes a circuit board 111 and a photosensitive chip 112 electrically connected to the circuit board 111 , specifically, the photosensitive chip 112 has a photosensitive area and a non-photosensitive area formed around the photosensitive area. Correspondingly, the mirror base 12 is located above the circuit board assembly 11, and the mirror base 12 has a light hole 121 corresponding to at least part of the photosensitive area of the photosensitive chip 112, so that the imaging light reaches the mirror. When seated, it can pass through the light hole 121 and emit light to the photosensitive area of the photosensitive chip 12 along the photosensitive path of the photosensitive component 11 .

The photosensitive chip 112 is electrically connected to the circuit board 111, so as to provide the photosensitive chip 112 with the control circuit and electric energy required for the operation through the circuit board 111, so as to convert the optical signal into electrical energy through its own photosensitive function. The signal is imaged. In one example, the photosensitive chip 112 is mounted on the upper surface of the circuit board 111 and electrically connected to the circuit board 111 by means of gold wires. Of course, in other examples of the present application, the photosensitive chip 112 can also be arranged on the circuit board 111 in other ways and/or electrically connected to the circuit board 111 in other ways, for example, by flip-chip bonding Attached to the lower surface of the circuit board 111 , it is not limited in this application.

The circuit board assembly 11 further includes a bracket 113 and a filter element 114 . The bracket 113 is formed on the circuit board 111 for supporting other components, wherein the bracket 113 has a light window corresponding to at least a photosensitive area of the photosensitive chip 112 . In a specific example of the present application, the support 113 is implemented as a separately molded plastic support, which is attached to the surface of the circuit board 111 by an adhesive, and is used to support other components. Of course, in other examples of the present application, the bracket 113 can also be formed on the circuit board 111 in other ways, for example, the bracket 113 is implemented as a molded bracket, which is integrally formed on the circuit through a molding process The preset position of the board 111 is not limited by the present application.

The filter element 114 can be mounted on the bracket 113 to be held on the photosensitive path of the photosensitive chip 112 , so that the external light passes through the filter element 114 to reach the photosensitive chip 112 During the process, the stray light in the external light can be filtered by the filter element 114 to improve the imaging quality. It is worth mentioning that, in other examples of the present application, the filter element 114 can also be installed on the bracket 113 in other ways, for example, first set the filter element 114 bracket on the bracket 113 (not shown shown in the figure), and then install the filter element 114 on the support of the filter element 114, that is, in this example, the filter element 114 can be indirectly installed on the on the bracket 113. Moreover, in other examples of the present application, the filter element 114 can also be installed in other positions of the camera module 300, for example, the filter element 114 is formed in the optical lens 20 (for example, As a layer of filter film attached to the surface of a certain optical lens 230 of the optical lens 20), this is not limited by the present application.

In order to increase the strength of the bottom of the photosensitive assembly 10, in some examples of the present application, the circuit board assembly 11 further includes a reinforcing plate (not shown) arranged on the lower surface of the circuit board 111, for example, A steel plate is provided on the lower surface of the circuit board 111 to enhance the strength of the circuit board 111 through the steel plate. Correspondingly, the reinforcement board can be configured to have the same shape and size as the circuit board 111 , so as to be stacked on the lower surface of the circuit board 111 to protect the entire circuit board 111 . strengthen.

Particularly, in the embodiment of the present application, the optical lens 20 is implemented as a split lens, which includes at least two lens parts. For example, the split lens includes two lens parts: a first lens part 21 and a second lens part. Two lens parts 22, wherein the first lens part 21 includes a first lens barrel 211 and at least one optical lens 230 installed in the first lens barrel 211, and the second lens part 22 includes a second lens barrel 221 and at least one optical lens 230 installed in the second lens barrel 221, at least one optical lens 230 of the first lens part cooperates with at least one optical lens 230 of the second lens part 22 to form Imageable optics.

Those of ordinary skill in the art should know that, for the imageable optical system formed by the first lens part 21 and the second lens part 22, within the range of the number of predetermined optical lenses 230, the imageable optical system The effective focal length is proportional to the number of optical lenses 230 , and its resolution is also proportional to the number of optical lenses 230 . That is, within the predetermined number range, the greater the effective focal length of the imageable optical system, the more the number of optical lenses 230 it contains; the better the resolution of the imageable optical system, the more optical lenses it contains The larger the number of 230.

As mentioned above, in the embodiment of the present application, with the popularization of mobile electronic devices, related technologies of the camera module 300 applied to mobile electronic devices to help users acquire images have been rapidly developed and improved. Currently in the market, it is expected that the camera module 300 configured in a mobile electronic device can realize a multi-zoom shooting function or a telephoto shooting function, that is, the configured camera module 300 is required to have a relatively large effective focal length. This requires that the configured imaging optical system of the optical lens 20 has a relatively large effective focal length, that is, the imaging optical system of the optical lens 20 should be configured with a relatively large number of optical lenses 230 .

Under such technical requirements, if the split lens is implemented as a conventional split lens, that is, there is a fixed relative positional relationship between the first lens part 21 and the second lens part 22, then the The split-type lens will have a relatively large height dimension, which will result in a relatively large height dimension of the camera module 300 as a whole, which is difficult to meet the assembly requirements of thinner and lighter mobile electronic devices.

In view of the above technical problems, the inventors of the present application tried to configure the split lens as a dynamic split lens, that is, the relative positional relationship between the first lens part 21 and the second lens part 22 can be adjusted, In this way, in the working state, the first lens part 21 and the second lens part 22 of the split lens are adjusted to predetermined positions to form a complete imageable optical system, and in the non-working state, the The first lens part 21 and the second lens part 22 of the split lens are close to each other so as to reduce their overall height and thus reduce the overall height of the camera module 300 to meet the assembly requirements of thinner and lighter mobile electronic devices .

For this reason, in the embodiment of the present application, the driving assembly 30 is configured for the split lens, so as to drive the split lens to switch between the working state and the non-working state through the driving assembly 30, wherein, In the working state, the driving assembly 30 drives the split lens to adjust the first lens part 21 and the second lens part 22 of the split lens to a predetermined position to form a complete imageable optical system ; In the non-working state, the driving assembly 30 drives the first lens part 21 and the second lens part 22 of the split lens to approach each other so as to reduce the overall height and size of the camera module 300 The overall height dimension meets the assembly requirements of thinner and lighter mobile electronic devices.

Specifically, as shown in FIGS. 1 to 3 , in the embodiment of the present application, the driving assembly 30 includes a first driving element 31, wherein, in a working state, the first driving element 31 is configured to drive the The first lens part 21 moves along the direction set by the optical axis to adjust the first lens part 21 and the second lens part 22 to a predetermined position, wherein, at the predetermined position, the first The effective focal length of the imaging optical system formed by the lens part 21 and the second lens part 22 is within a preset range.

Further, as shown in FIG. 4, in the embodiment of the present application, the driving assembly 30 further includes a second driving element 32, wherein, in a working state, the second driving element 32 is configured to be driven by the After the first driving element 31 adjusts the first lens part 21 and the second lens part 22 to the predetermined position, it drives the second lens part 22 to move along the direction set by the optical axis to perform Optical focus. In particular, in the embodiment of the present application, during the process of driving the second lens part 22 to move by the second driving element 32, the optical lens formed by the first lens part 21 and the second lens part 22 The effective focal length of the system remains within this preset range.

That is, in a specific example of the present application, in the working state, firstly, the second lens part 22 remains stationary, and the first driving element 31 drives the first lens part 21 along the optical axis Move to a predetermined position, wherein the effective focal length of the imageable optical system formed by the first lens part 21 and the second lens part 22 at the predetermined position is within a preset range; then, the first lens part 21 Keeping still, the second driving element 32 drives the second lens part 22 to move along the optical axis for optical focusing, wherein, in particular, when the second driving element 32 drives the second During the movement of the second lens part 22, the effective focal length of the optical system formed by the first lens part 21 and the second lens part 22 remains within the preset range.

In the embodiment of the present application, as shown in FIG. 4 , the camera module 300 further includes a casing 50 installed on the mirror base 12 , the casing 50 has a receiving cavity 51 and is connected to the receiving cavity 51 The optical lens 20 is accommodated in the accommodating cavity 51 of the housing 50 . Particularly, in the embodiment of the present application, the aperture of the first opening 52 is larger than the outer diameter of the optical lens 20 to allow the optical lens 20 to extend out or retract into the receiving cavity through the first opening 52 51.

It is worth mentioning that, in other examples of the present application, the mode of the working state may also be set to other types. For example, in another specific example, the working state of the camera module 300 is as follows: firstly, the second lens part 22 remains stationary, and the first driving element 31 drives the first lens part 21 along the The optical axis moves to a predetermined position, wherein the effective focal length of the imageable optical system formed by the first lens part 21 and the second lens part 22 at the predetermined position is within a preset range; then, the first A drive element 31 and the second drive element 32 simultaneously drive the first lens part 21 and the second lens part 22 to move along the same direction of the optical axis for optical focusing. In this way, Improve the speed of optical focusing, wherein, in particular, when the first lens part 21 and the second lens part 22 are simultaneously driven by the first drive element 31 and the second drive element 32 along the During the movement of the optical axis in the same direction, the effective focal length of the optical system formed by the first lens part 21 and the second lens part 22 remains within the preset range.

As another example, in yet another specific example, the working state of the camera module 300 is as follows: firstly, the second lens part 22 remains stationary, and the first driving element 31 drives the first lens part 21 Moving to a predetermined position along the optical axis, wherein the effective focal length of the imageable optical system formed by the first lens part 21 and the second lens part 22 at the predetermined position is within a preset range; then, the The first lens part 21 remains stationary, and the second driving element 32 drives the second lens part 22 to move along the optical axis for optical zooming. That is, in this working mode, when the second lens part 22 is driven to move by the second driving element 32, the optical system formed by the first lens part 21 and the second lens part 22 The effective focal length changes.

It should be understood that, in other examples of the present application, the working state mode of the camera module 300 may also be set to other types, which is not limited by the present application.

Correspondingly, in the non-working state, the first driving element 31 and/or the second driving element 32 drives the first lens part 21 and/or the second lens part 22 to approach each other, so that all The overall size occupied by the first lens part 21 and the second lens part 22 is reduced. For example, in a specific example, the non-working state is: the second lens part 22 remains still, and the first driving element 31 drives the first lens part 21 to approach the second lens part 22 , so as to reduce the distance between the first lens part 21 and the second lens part 22 .

It is worth mentioning that, in order to reduce the overall height of the split lens in the non-working state as much as possible, preferably, in the embodiment of the present application, between the first lens part 21 and the second lens In the optical system formed by the part 22, the distance between the lowermost optical lens 230 of the first lens part 21 and the uppermost optical lens 230 of the second lens part 22 is the largest. That is, in the imageable optical system formed by the optical lens 20, a division is made between the two optical lenses 230 having the largest gap to divide the imageable optical system into two sub-optical system parts: the first The lens section 21 has a first sub-optical system, and the second lens section 22 has a second sub-optical system. In this way, in the non-working state, the first lens part 21 and the second lens part 22 can be as close as possible to minimize the overall height of the optical lens 20 in the non-working state.

Certainly, in the embodiment of the present application, other ways may also be used to divide the imageable optical system formed by the optical lens 20 , which is not limited by the present application.

It is worth mentioning that, in the embodiment of the present application, when in a working state, the gap between the first lens part 21 and the second lens part 22 reaches the gap required for a complete optical design. When in the non-working state, the first lens part 21 and the second lens part 22 are close to each other. In this state, the first lens part 21 and the second lens part 22 can be completely Separate, or, the first lens part 21 and the second lens part 22 may be partially in contact to have a discontinuous gap, which is not limited by the present application.

Further, as shown in FIGS. 5 to 8 , in the embodiment of the present application, the driving assembly 30 further includes a third driving element 33 configured to drive the photosensitive assembly 10 in the vertical move in the plane of the optical axis for optical anti-shake. In a specific embodiment, the third driving element 33 can drive the entire photosensitive assembly 10 to move in a plane perpendicular to the optical axis for optical anti-shake, or the third driving element 33 can only drive the The photosensitive chip 112 moves in a plane perpendicular to the optical axis for optical image stabilization, which is not limited by the present application.

The inventors of the present application try to meet the size requirement of the camera module 300 through the selection and reasonable layout of the driving elements. In the embodiment of the present application, the first driving element 31 and the second driving element 32 are arranged side by side in the height direction of the camera module 300, and the second driving element 32 is located in the first The inner side of the driving element 31 is arranged in such a position, which facilitates the minimized layout of the first driving element 31 and the second driving element 32 in the casing 50 . Moreover, the first driving element 31 is a piezoelectric actuator, and the second driving element 32 is an electromagnetic actuator, therefore, between the first driving element 31 and the second driving element 32 is also Interference will not occur. Moreover, in the embodiment of the present application, the first lens part 21 needs to be configured with a relatively large stroke, and the stroke of the second lens part 22 is relatively small. Therefore, the first lens part 21 is configured with a piezoelectric At the same time, configuring an electromagnetic actuator for the second lens part 22 can also meet the travel requirements of both.

The first driving element 31 includes a first driving carrier 311 having a first lens mounting cavity 301 and a driving body 312 for driving the first driving carrier 311 . The first lens part is installed in the first lens installation cavity 301 . It is worth mentioning that, in the embodiment of the present application, the first lens part 21 is taken as an example including a lens barrel. It should be understood that in other examples of the present application, the first lens part 21 may not be configured with all The first lens barrel 211 is used, and the first drive carrier 311 is used as a bearing component of at least one optical lens 230 of the first lens part 21 . That is, in other examples of the present application, the first lens part 21 only includes at least one optical lens 230 , and the at least one optical lens 230 is installed in the first lens installation cavity 301 of the first driving carrier 311 .

It is worth mentioning that, preferably, in the embodiment of the present application, the outer diameter of the upper end of the first drive carrier 311 is equal to the inner diameter of the first opening 52, so that the first drive carrier 311 is stuck It is disposed in the first opening 52 . That is, the first driving carrier 311 is tightly fitted in the first opening 52 , and, more preferably, the first opening 52 has the same shape as the upper end of the first driving carrier 311 . Shape, in order to improve the sealing performance of the housing 50 in such a way, prevent dust, water vapor and other sundries from entering the housing 50 through the gap between the first driving carrier 311 and the first opening 52 internal. More preferably, in order to further improve the sealing performance of the camera module 300, the upper part of the first lens installation cavity 301 is further sealed, for example, a light-transmittable cover plate 40 is arranged on the first lens installation cavity 301 (for example, a glass cover plate), so as to prevent dust, water vapor and other sundries from entering the interior of the first drive carrier 311 through the first lens installation cavity 301 through the light-transmittable cover plate 40 .

Particularly, in the embodiment of the present application, both the second driving element 32 and the third driving element 33 are implemented as electromagnetic actuators, and the second driving element 32 and the third driving element The elements 33 are disposed adjacently up and down, and the second driving element 32 and the third driving element 33 share at least one magnet, so as to make full use of the internal space of the camera module 300 and reduce the height of the camera module 300 .

Specifically, the second driving element 32 includes a second driving carrier 321 having a second lens mounting cavity 302, a second coil 322 mounted on the side of the second driving carrier 321, and a second coil corresponding to the second coil The second magnet 323 of 322 , the second lens part 22 is installed in the second lens installation cavity 302 . The second coil 322 and the second magnet 323 are configured to drive the second driving carrier 321 to move along the direction set by the optical axis so as to drive the lens installed in the second lens installation cavity 302 The second lens part 22 moves along the direction set by the optical axis.

It is worth mentioning that although in the examples shown in FIGS. 1 to 3 , the second lens part 22 includes a lens barrel as an example, those of ordinary skill in the art should know that in other examples of the present application, The second lens part 22 may also choose to use the second drive carrier 321 as its bearing component without the second lens barrel 221 . That is, in other examples of the present application, the second lens part 22 only includes at least one optical lens 230, and the at least one optical lens 230 is installed in the second lens installation cavity 302 of the second drive carrier 321 .

The third drive element 33 includes a third drive carrier 331, a third magnet 333 disposed on the bottom of the third drive carrier 331 and corresponding to the third coil 332, and the photosensitive assembly 10 is mounted on the on the third drive carrier 331 . The third magnet 333 and the third coil 332 can drive the third driving carrier 331 to move in a plane perpendicular to the optical axis so as to drive the photosensitive assembly 10 in a plane perpendicular to the optical axis move.

The photosensitive assembly 10 is firmly installed on the third drive carrier 331 in a manner integrally combined with the third drive carrier 331 , so that the third coil 332 and the third magnet 333 are driving the third drive carrier 331 . During the movement of the third driving carrier 331 , the photosensitive assembly 10 is driven by the third driving carrier 331 and moves in a plane perpendicular to the optical axis.

In the embodiment of the present application, the third magnet 333 and the second magnet 323 are the same magnet. That is, the second magnet 323 or the third magnet 333 can not only cooperate with the second coil 322 to drive the second lens part 22 to move along the direction set by the optical axis, but also can Cooperate with the third coil 332 to drive the photosensitive assembly 10 to move in a plane perpendicular to the optical axis.

It is worth mentioning that the number of magnets and coils included in the second driving element 32 and the third driving element 33 is not limited to this application, for example, each magnet and a coil form a group, and the second The number of sets of magnets and coils included in the drive element 32 is 1, 2, or more, and the number of sets of magnets and coils included in the third drive element 33 is 1, 2, or more.

In a specific example of the present application, the third driving element 33 includes four sets of magnets and coils. In this specific example, as shown in FIG. 5 and FIG. 6, the third magnet 333 and the third coil 332 are located on the first side of the third drive carrier 331, and the third magnet 333 and the third coil 332 The third coil 332 is configured to drive the third drive carrier 331 to move in a first direction in a plane perpendicular to the optical axis.

The third drive element 33 further includes a fourth coil 334 disposed on the bottom of the third drive carrier 331 and located on a second side opposite to the first side, and a fourth coil 334 corresponding to the fourth coil 334 Magneto335. In particular, the third magnet 333 is a common magnet of the second driving element 32 and the third driving element 33, in order to simultaneously cooperate with the third coil 332 located at the bottom of the third driving carrier 331 and the The second coil 322 adjacent to the side of the second drive carrier 321 up and down of the third drive carrier 331 makes the bottom surface of the third magnet 333 and the third coil 332 below it On the contrary, the side of the third magnet 333 is opposite to the second coil 322 located on its side, and the height of the third magnet 333 is designed to be relatively high. Correspondingly, the height dimension of the third magnet 333 is greater than the height dimension of the fourth magnet 335 .

The third drive element 33 further includes a fifth coil 336 disposed on the bottom of the drive carrier and located on a third side adjacent to the first side, and a fifth magnet 337 corresponding to the fifth coil 336 , the magnet and the fifth coil 336 are configured to drive the third carrier to move in a second direction in a plane perpendicular to the optical axis. Moreover, the height dimension of the fifth magnet 337 is equal to the height dimension of the fourth magnet 335 and smaller than the height dimension of the third magnet 333 .

The third drive element 33 further includes a sixth coil 338 disposed on the bottom of the drive carrier and located on the fourth side adjacent to the first side, and a sixth magnet 339 corresponding to the sixth coil 338 , wherein, the height dimension of the sixth magnet 339 is the same as the height dimension of the fourth magnet 335 and the fifth magnet 337 but smaller than the height dimension of the third magnet 333 .

Correspondingly, the mirror base 12 is installed on the third drive carrier 331, and the mirror base 12 has a first slot 122 corresponding to the third magnet 333, a first slot 122 corresponding to the fourth magnet 335 of the second slot 123, the third slot 124 corresponding to the fifth magnet 337 and the fourth slot 125 corresponding to the sixth magnet 339, so as to allow the third magnet 333, the first magnet The four magnets 335, the fifth magnet 337 and the sixth magnet 339 pass through the first slot 122, the second slot 123, the fourth slot 124 and the fourth slot 124 of the mirror base 12 respectively. In the fifth slot 125 , in this way, the mirror base 12 can be attached to the third drive carrier 331 to reduce the height space occupied by it, thereby reducing the overall height dimension of the camera module 300 .

It is worth mentioning that, in this specific example, by increasing the height of the common magnets of the second drive element 32 and the third drive element 33, the common magnets are simultaneously matched with the second drive element 32 and other components of the third driving element 33 to drive the second lens part 22 and the photosensitive assembly 10 to move.

Specifically, the third coil 332, the fourth coil 334, the fifth coil 336, and the sixth coil 338 are located on the same horizontal plane, that is, are installed on the same plane, and are respectively connected to the third coil 332, the bottom surfaces of the third magnet 333, the fourth magnet 335, the fifth magnet 337 and the sixth magnet 339 corresponding to the fourth coil 334, the fifth coil 336 and the sixth coil 338 are located at On the same horizontal plane, since the height of the third magnet 333 is higher than that of the fourth magnet 335, the fifth magnet 337, and the sixth magnet 339, the top surface of the third magnet 333 is higher than the fourth magnet 335 , the top surfaces of the fifth magnet 337 and the sixth magnet 339, and are higher than or equal to the height of the top of the second coil 322 when it is not being conducted, so as to cooperate with the bottom of the third drive carrier 331 The third coil 332 and the second coil 322 located on the side of the second drive carrier 321 adjacent to the upper and lower sides of the third drive carrier 331 .

In a modified implementation of the embodiment of the present application, other means can also be used to make the common magnet of the second driving element 32 and the third driving element 33 cooperate with the second driving element 32 and the third driving element at the same time. Other components of the element 33 are used to drive the second lens part 22 and the photosensitive assembly 10 to move, which is not limited by the present application. For example, the installation plane of the third coil 332 is higher than the installation plane of the fourth coil 334, the fifth coil 336 and the sixth coil 338, correspondingly, the bottom surface of the third magnet 333 is higher than The bottom surfaces of the fourth magnet 335 , the fifth magnet 337 and the sixth magnet 339 . And, the height of the third magnet 333 is equal to the height of the fourth magnet 335, the fifth magnet 337, and the sixth magnet 339, so that the top surface of the third magnet 333 is higher than the fourth magnet 335, The top surfaces of the fifth magnet 337 and the sixth magnet 339 are higher than or equal to the height of the top of the second coil 322 when it is not being conducted, so as to cooperate with the bottom of the third drive carrier 331 at the same time. The third coil 332 and the second coil 322 located on the side of the second drive carrier 321 adjacent to the upper and lower sides of the third drive carrier 331 .

It is worth mentioning that the number of magnets shared by the second driving element 32 and the third driving element 33 is not limited in this application. For example, in other specific examples of the present application, the third magnet 333 located on the first side of the third drive carrier 331 and the second magnet 333 located on the third drive carrier 331 opposite to the first side The fourth magnet 335 on the side is a common magnet for the first driving element 31 and the second driving element 32 . Correspondingly, the second driving element 32 includes another second coil 322 corresponding to the fourth magnet 335, the other second coil 322 and the fourth magnet 335 are configured to drive the second The driving carrier 321 moves along the direction set by the optical axis to drive the second lens part 22 installed in the second lens installation cavity 302 to move along the direction set by the optical axis.

Further, the second driving element 32 is located between the first driving element 31 and the third driving element 33, in order to limit the height of the upward movement of the second lens part 22 and prevent the first lens part from 21 collides with the second lens part 22, in the embodiment of the present application, the camera module 300 further includes a limit isolation set between the first driving element 31 and the second driving element 32 Component 34 , wherein the limiting and isolating component 34 is configured to limit the maximum height of the upward movement of the second lens part 22 . It should be noted that the limit isolation part 34 is arranged between the first lens part 21 and the second lens part 22, therefore, it can also prevent the first lens part 21 and the second lens part from The lens portion 22 has crosstalk, for example, a collision or the like.

Specifically, as shown in FIG. 5 , in this embodiment, the position-limiting isolation component 34 includes an isolation portion 341 formed around the second lens portion 22 , on which the second lens portion 22 is mounted. The second driving element 32 is located in the isolation portion 341 . More specifically, the isolation portion 341 has a mounting portion 303 formed on its side, and the second magnet 323 is fixed to the mounting portion 303 . The installation part 303 not only protects the second driving element 32, but also the second magnet 323 is accommodated in the installation part 303, so that the internal space of the camera module 300 can be fully utilized , reducing the height dimension occupied by the second magnet 323 .

The position-limiting isolation member 34 also includes a position-limiting portion 342 integrally extending upward from the isolation portion 341, and the position-limiting portion 342 has a position-limiting cavity 304 formed on its side for constraining the second The lens part 22 moves in the limiting cavity 304 . Correspondingly, the second driving carrier 321 includes a limiting head 222 extending outward from its outer periphery and extending into the limiting cavity 304 , so that the limiting head 222 and the limiting cavity 304 The movement of the second lens part 22 is limited within the height range set by the limiting cavity 304 . Specifically, when the second lens part 22 is driven upward by the second driving element 32, the upper limit of its stroke is that the limit head 222 touches the upper surface of the limit cavity 304, in this way , to limit the maximum height of the second lens part 22 moving upward.

Especially, when the camera module 300 is in a non-working state, the first lens part 21 can bear against the upper surface of the limiting part 342 to provide support for the first lens part 21 . Moreover, in this way, the space in the housing 50 can be fully utilized to compress the overall height of the housing 50 , so as to realize the miniaturization of the camera module 300 .

In the example shown in FIG. 5 , the isolation part 341 and the limiting part 342 have an integrated structure. Specifically, in this example, the limiting portion 342 is arranged around the periphery of the second lens portion 22 to form the isolation portion 341, that is, in this example, the limiting portion 342 has The ring structure, and the isolation part 341 and the limiting part 342 are the same part. It is worth mentioning that, in other examples of the present application, the isolation portion 341 and the limiting portion 342 may also be implemented as separate components, which is not limited by the present application.

In order to make the movement of the second lens part 22 smoother and the second lens part 22 does not tilt greatly, preferably, in the embodiment of the present application, as shown in FIG. 7 , the second drive element 32 further includes a guide mechanism for guiding the movement of the second drive carrier 321 , in this embodiment, the guide mechanism is implemented as a ball-sliding groove structure 60 and is arranged on the second drive carrier 321 and between the position-limiting and isolating components 34 . That is, the second driving element 32 includes a ball-sliding groove structure 60 disposed between the second driving carrier 321 and the limiting and isolating member 34 . It is worth mentioning that, in other examples of the present application, the guide mechanism can also be implemented as other types of structures, for example, a guide rod structure or a slider structure, which is not limited by the present application.

In the specific example shown in FIG. 7 , the ball-sliding groove structure 60 and the second coil 322 are located on the same side of the second drive carrier 321 . The location of the ball-sliding groove structure 60 is not limited by the present application, for example, in other examples of the application, the ball-sliding groove structure 60 and the second coil 322 are located on the second drive carrier 321 opposite the first side and the second side, that is, the ball-sliding groove structure 60 and the second coil 322 are located on the opposite sides of the second driving carrier 321, and the second driving element 32 is on The first side of the second driving carrier 321 drives the second driving carrier 321, and the ball-sliding groove structure 60 guides the movement of the second driving carrier 321 on the second side of the second driving carrier 321, In order to improve the smoothness of the movement of the second driving carrier 321 and prevent it from tilting during the movement.

In order to make the photosensitive assembly 10 move more smoothly in a plane perpendicular to the optical axis, as shown in FIG. 8 , the photosensitive assembly 10 further includes There is at least one ball-sliding groove structure 60 therebetween. Correspondingly, the number of the at least one ball-sliding groove structure 60 is not limited to the present application. In a specific example, there are 4 sets of the ball-sliding groove structures 60 arranged on the third drive carrier 331 and between the mirror holder 12. In particular, in this particular example, one pair of ball-slide structures 60 extends along a first direction, for example, along the X direction, and the other pair of ball-slide structures 60 extends along a direction perpendicular to the X direction. The second direction of the first direction extends, for example, along the Y-axis direction.

Moreover, in the embodiment of the present application, the setting position of the ball-sliding groove structure 60 is not limited to the present application, and it can be set at the four corners of the third drive carrier 331 and the mirror base 12 , can also be set in other locations. Preferably, in this example, the pair of ball-sliding groove structures 60 extending along the first direction are arranged symmetrically with respect to the center line of the third drive carrier 331 , and the pair of ball-sliding groove structures 60 extending along the second direction The ball-sliding groove structure 60 is also arranged symmetrically with respect to the centerline of the third driving carrier 331 , so as to improve the driving stability of the third driving carrier 331 , that is, the stability of optical anti-shake.

More specifically, in the embodiment of the present application, each of the ball-sliding groove structures 60 includes at least one sliding groove disposed between the third driving carrier 331 and the mirror holder 12 and is accommodated in the At least one ball of at least one chute. Moreover, in the embodiment of the present application, the shape of the at least one chute is not limited by the present application, and it may be implemented as a "cross" shape, a rectangle, and the like. It should be understood that the shape of the chute guides the movement of the photosensitive assembly 10, therefore, preferably, the chute includes a portion extending along the X axis and/or a portion extending along the Y axis.

To sum up, the camera module 300 based on the embodiment of the present application is clarified, wherein the time distribution of the camera module 300 is staggered from the contradiction between the overall height dimension and the larger effective focal length of the vertical camera module 300 . Specifically, the camera module 300 has a relatively small height in the non-working state, and the camera module 300 has a relatively large effective focal length in the working state, so as to meet the requirement of the terminal device for the camera in the non-working state. The requirement for the overall height of the module 300 meets the requirement for a larger effective focal length of the camera module 300 in a working state. Moreover, by rationally arranging the drivers, the driver used to drive the photosensitive assembly 10 and the driver used to drive the lens part can share the driving components, so as to make full use of the internal space of the camera module 300 and reduce the height of the camera module 300. .

Exemplary electronic device

According to another aspect of the present application, an electronic device is also provided.

FIG. 9 illustrates a schematic diagram of an electronic device according to an embodiment of the present application. As shown in FIG. 9 , the electronic device 200 according to the embodiment of the present application includes an electronic device body 210 and the above-mentioned camera module 300 assembled on the electronic device body 210 .

In a specific implementation, the camera module 300 can be deployed on the back of the electronic device body 210 to be used as the rear camera module 300 . Of course, it can also be set as the front part of the electronic device body 210 to be used as the front camera module 300 . The specific installation position of the camera module 300 on the electronic device body 210 is not limited by this application.

In particular, compared with the conventional upright camera module 300, the camera module 300 can extend the first lens part 231 of its optical lens 23 to increase its total optical length until it satisfies Shooting requirements, as shown in Figure 10.

It should be understood by those skilled in the art that the embodiments of the present invention shown in the foregoing description and drawings are only examples and do not limit the present invention. The objects of the present invention have been fully and effectively accomplished. The functions and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention may have any deformation or modification without departing from the principles.

Claims

A camera module, characterized in that it comprises:

Photosensitive components;

An optical lens held on the photosensitive path of the photosensitive component, wherein the optical lens is provided with an optical axis and includes a first lens part and a second lens part coaxially arranged along the optical axis, the there is a gap between the first lens portion and the second lens portion; and

a drive assembly comprising a first drive element, a second drive element and a third drive element;

Wherein, the first driving element is configured to drive the first lens part to move along the direction set by the optical axis; the second driving element is configured to drive the second lens part to move along the direction set by the optical axis. moving in a direction set by the optical axis; and, the third driving element is configured to drive the photosensitive assembly to move in a plane perpendicular to the optical axis;

Wherein, the second driving element and the third driving element are disposed adjacently up and down, and the second driving element and the third driving element share at least one magnet.
The camera module according to claim 1, wherein the first driving element is configured to drive the first lens part to move along the direction set by the optical axis to adjust the first lens part and The second lens part reaches a predetermined position, and at the predetermined position, the effective focal length of the optical system formed by the first lens part and the second lens part is within a preset range.
The camera module according to claim 2, wherein the second driving element is configured to adjust the first lens part and the second lens part to the predetermined position by the first driving element , driving the second lens part to move along the direction set by the optical axis for optical focusing; wherein, during the process of driving the second lens part to move by the second driving element, the first The effective focal length of the optical system formed by the first lens part and the second lens part remains within the preset range.
The camera module according to claim 2, wherein the second driving element is configured to adjust the first lens part and the second lens part to the predetermined position by the first driving element , driving the second lens part to move along the direction set by the optical axis to perform optical zooming.
The camera module according to claim 3 or 4, wherein the second driving element and the third driving element are implemented as electromagnetic actuators, and the second driving element includes a second lens mounting cavity The second driving carrier, the second coil installed on the side of the second driving carrier and the second magnet corresponding to the second coil, the second lens part is installed in the second lens mounting cavity Inside; the third driving element includes a third driving carrier, a third coil arranged at the bottom of the third driving carrier and a third magnet corresponding to the third coil, and the photosensitive assembly is installed on the On the third drive carrier; wherein, the third magnet and the second magnet are the same magnet.
The camera module according to claim 5, wherein the third magnet and the third coil are located on the first side of the third drive carrier, and the third magnet and the third coil are configured To drive the third drive carrier to move in a first direction in a plane perpendicular to the optical axis.
The camera module according to claim 6, wherein the third driving element further comprises a fourth coil and a corresponding fourth coil disposed on the bottom of the third driving carrier and on the second side opposite to the first side. The fourth magnet in the fourth coil; wherein, the height of the third magnet is greater than the height of the fourth magnet.
The camera module according to claim 7, wherein the third drive element further comprises a fifth coil disposed on the bottom of the drive carrier and located on the third side adjacent to the first side and corresponding to The fifth magnet of the fifth coil, wherein, the height dimension of the fifth magnet is equal to the height dimension of the fourth magnet and smaller than the height dimension of the third magnet.
The camera module according to claim 8, wherein the third drive element further comprises a sixth coil disposed on the bottom of the drive carrier and located on the fourth side adjacent to the first side and corresponding to The sixth magnet of the sixth coil, wherein, the height dimension of the sixth magnet is the same as the height dimension of the fourth magnet and the fifth magnet but smaller than the height dimension of the third magnet.
The camera module according to claim 9, wherein the third coil, the fourth coil, the fifth coil and the sixth coil are located on the same horizontal plane.
The camera module according to claim 5, further comprising a limiting and isolating part arranged between the first driving element and the second driving element, wherein the limiting and isolating part is configured to limit the The maximum height the second camera section moves up.
The camera module according to claim 11, wherein the position-limiting and isolating part comprises an isolating part formed around the second lens part, and the second drive element installed with the second lens part is located at within the isolation section.
The camera module according to claim 12, wherein the limiting and isolating part further comprises a limiting part integrally extending upward from the isolating element, and the limiting part has a limiting cavity formed on a side thereof , for constraining the movement of the second lens part in the limiting cavity.
The camera module according to claim 13, wherein the second drive carrier includes a limiting head extending outward from its outer periphery and protruding into the limiting cavity.
The camera module according to claim 13, wherein the isolation part has a mounting part formed at a side thereof, and the second magnet is fixed to the mounting part.
The camera module according to claim 11, wherein the second driving element further comprises a ball-sliding groove structure disposed between the second driving carrier and the limiting and isolating component.
The camera module according to claim 16, wherein the ball-sliding groove structure and the second coil are located on the same side of the second driving carrier.
The camera module according to claim 16, wherein the ball-sliding groove structure and the second coil are located on opposite sides of the second drive carrier.
The camera module according to claim 10, wherein the photosensitive assembly includes a circuit board assembly and a lens holder, the circuit board assembly includes a circuit board and a photosensitive chip electrically connected to the circuit board, and the circuit board assembly installed on the third drive carrier.
The camera module according to claim 19, wherein the mirror base is mounted on the third drive carrier, wherein the mirror base has a light through hole corresponding to at least part of the photosensitive area of the photosensitive chip , the first slot corresponding to the third magnet, the second slot corresponding to the fourth magnet, the third slot corresponding to the fifth magnet, and the fourth slot corresponding to the sixth magnet.
The camera module according to claim 20, wherein the photosensitive assembly further comprises at least one ball-sliding groove structure disposed between the third drive carrier and the mirror holder.