CN108535830A - Imaging module, camera assembly and electronic device - Google Patents

Abstract

The invention provides an imaging module, a camera assembly and an electronic device. The imaging module of the embodiment of the invention comprises: the device comprises a shell, a moving element accommodated in the shell, a plurality of lenses fixed on the moving element in a contact mode, an image sensor arranged on one side of the lenses, and a driving mechanism for connecting the shell and the moving element, wherein the driving mechanism is used for driving the moving element to move along optical axes of the lenses so that the lenses can be focused and imaged on the image sensor. Among above-mentioned imaging module, camera subassembly and the electron device, a plurality of lenses snap-on are on the moving element for imaging module's spare part quantity is less, imaging module's simple structure, and the volume is littleer.

Description

Imaging modules, camera components and electronic devices

technical field

The invention relates to the field of electronic devices, in particular to an imaging module, a camera assembly and an electronic device.

Background technique

With the popularity of mobile phones in people's daily life, users have put forward higher requirements on the functions of mobile phones. For example, mobile phones tend to be thinner and lighter, and for example, mobile phones need to obtain better camera effects. In the related art, in order to improve the photographing effect of the mobile phone, the camera of the mobile phone adopts a periscope lens, and the periscope camera can, for example, triple the optical focal length to obtain images with better quality. However, the structure of the periscope camera is complex, resulting in a large volume of the periscope camera.

Contents of the invention

The invention provides an imaging module, a camera assembly and an electronic device.

The imaging module of the embodiment of the present invention includes:

shell;

a moving element housed within the housing;

contacting a plurality of lenses fixed on said moving element;

an image sensor disposed on one side of the plurality of lenses; and

The housing is connected to a driving mechanism of the moving element, and the driving mechanism is used to drive the moving element to move along the optical axis of the plurality of lenses to focus and image the plurality of lenses on the image sensor.

The camera assembly of the embodiment of the present invention includes the imaging module of the above embodiment, the housing is provided with a light inlet, and the imaging module also includes a light conversion element arranged in the housing, and the light conversion element is used for The incident light incident from the light inlet is diverted and transmitted to the image sensor after passing through the plurality of lenses.

An electronic device in an embodiment of the present invention includes a casing and the camera assembly in the above embodiment, and the camera assembly is arranged on the casing.

In the above-mentioned imaging module, camera assembly and electronic device, a plurality of lenses are directly fixed on the moving element, so that the number of parts of the imaging module is small, the structure of the imaging module is simple, and the volume is smaller.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

1 is a schematic plan view of an electronic device according to an embodiment of the present invention;

2 is a perspective view of a camera assembly according to an embodiment of the present invention;

3 is an exploded schematic diagram of a camera assembly according to an embodiment of the present invention;

Fig. 4 is a schematic perspective view of a decorative part according to an embodiment of the present invention;

5 is an exploded schematic diagram of an imaging module according to an embodiment of the present invention;

6 is a schematic cross-sectional view of an imaging module according to an embodiment of the present invention;

7 is a schematic cross-sectional view of an imaging module according to another embodiment of the present invention;

Fig. 8 is a schematic cross-sectional view of the A-A direction of the camera assembly of Fig. 2;

9 is a schematic cross-sectional view of an imaging module in the prior art;

Fig. 10 is a structural schematic diagram of the cooperation between the imaging module and the decorative part in some embodiments;

FIG. 11 is a schematic cross-sectional view of the electronic device in FIG. 1 along the B-B direction.

Description of main component symbols:

Electronic device 1000, casing 102, camera assembly 100, imaging module 10, casing 11, light inlet 111, groove 112, top wall 113, side 1132, side wall 114, moving element 12, clip 112, lens 13. An image sensor 14, a driving mechanism 15, a light turning element 16, a mount 17, a decorative part 20, a through hole 21, a decorative ring 22, a convex edge 23, and a bracket 30.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction of two components relation. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

Referring to FIG. 1 , an electronic device 1000 according to an embodiment of the present invention includes a casing 102 and a camera assembly 100 . The camera assembly 100 is disposed on the casing 102 . The electronic device 1000 may be a mobile phone, a tablet computer, a notebook computer, a smart bracelet, a smart watch, a smart helmet, smart glasses, and the like. The embodiment of the present invention is described by taking the electronic device 1000 as an example of a mobile phone. It can be understood that the specific form of the electronic device 1000 may be other, which is not limited here.

Specifically, the casing 102 is an external component of the electronic device 1000 , which plays a role in protecting the internal components of the electronic device 1000 . The casing 102 may be a back cover of the electronic device 1000 , which covers components such as a battery of the electronic device 1000 . In this embodiment, the camera assembly 100 is placed at the rear, or in other words, the camera assembly 100 is disposed on the back of the electronic device 1000 so that the electronic device 1000 can perform a rear camera. As shown in the example of FIG. 1 , the camera assembly 100 is disposed at the upper left corner of the casing 102 . Of course, it can be understood that the camera assembly 100 can be arranged in other positions such as the upper middle position or the upper right position of the casing 102 . The location where the camera assembly 100 is disposed on the casing 102 is not limited to the example of the present invention.

Please refer to FIG. 6 , the imaging module 10 of the embodiment of the present invention includes a housing 11, a moving element 12 accommodated in the housing 11 and a plurality of lenses 13 fixed in contact with the moving element 12; The image sensor 14 , and the driving mechanism 15 connecting the housing 11 and the moving element 12 , the driving mechanism 15 is used to drive the moving element 12 to move along the optical axis of the multiple lenses 13 so that the multiple lenses 13 focus and image on the image sensor 14 .

Please refer to FIG. 9, in the prior art imaging module 10b, the imaging module 10b includes a carrier 12a and a lens assembly 13a, the lens assembly 13a includes a lens barrel 13b and a lens 13c, and the lens 13c is fixed in the lens barrel 13b. The lens assembly 13a is fixed on the carrier 12a through the lens barrel 13b. The carrier 12a is connected with the driving mechanism 15a, and the driving mechanism 15a can drive the carrier 12a to move in the casing 11a, and the carrier 12a drives the lens assembly 13a to drive the lens 13c to move correspondingly, so as to achieve the purpose of zooming. Since both the carrier 12a and the lens barrel 13b have a certain thickness, they occupy a considerable part of the space of the imaging module 10b, thus affecting the size of the lens 13c disposed in the lens assembly 13a or the size of the overall imaging module 10b.

As shown in Figure 6, in the imaging module 10 of the embodiment of the present invention, the design of the lens barrel is canceled, and a plurality of lenses 13 are directly fixed on the moving element 12 to form an integral structure with the moving element 12, reducing the thickness of the imaging module 10 .

Of course, while keeping the size of the original imaging module 10 unchanged, the multiple lenses 13 can also be enlarged adaptively to increase the effective optical aperture of the lenses 13 to obtain better optical effects. Alternatively, while keeping the original optical lens 13 unchanged, the height of the imaging module 10 is reduced, so that the number of components of the imaging module 10 is reduced, and the imaging module 10 has a simple structure and a smaller volume.

Referring to Fig. 6, in some embodiments, the moving element 12 is cylindrical, and a plurality of lenses 13 are fixed in the moving element 12 at intervals along the axial direction of the moving element 12; referring to Fig. 7, or, the moving element 12 includes two There are two clips 122, and two clips 122 sandwich a plurality of lenses 13.

It can be understood that since the moving element 12 is used to fix a plurality of lenses 13 arranged at intervals, the required length of the moving element 12 is relatively large, and the moving element 12 can be cylindrical, square, etc. with a relatively certain cavity shape. In this way, the moving element 12 is packaged in a tube so that a plurality of lenses 13 can be better arranged, and the lenses 13 can be better protected in the cavity, so that the lenses 13 are not easy to shake.

In addition, the moving element 12 is two clips that clamp a plurality of lenses 13 between the two clips, which not only has a certain stability, but also reduces the weight of the moving element 12, and can reduce the cost of driving the moving element 12 by the driving structure. required power, and the design difficulty of the moving element 12 is relatively low, and the lens 13 is also easier to be arranged on the moving element 12 .

Of course, the moving element 12 is not limited to the above-mentioned cylindrical shape and two clips. In other embodiments, the moving element 12 may include three, four or more clips to form a more stable structure, or A simpler structure such as a clip; or a rectangular body, a circular body, etc. with cavities to accommodate various regular or irregular shapes of the lens 13 . On the premise of ensuring the normal imaging and operation of the imaging module 10 , specific selections can be made.

The image sensor 14 may use a complementary metal oxide semiconductor (CMOS, Complementary Metal Oxide Semiconductor) photosensitive element or a charge-coupled device (CCD, Charge-coupled Device) photosensitive element.

In some embodiments, multiple lenses 13 are bonded and fixed to the moving element 12 by glue.

The adhesive bonding method is relatively simple, easy to implement, and has a good fixing effect.

In one embodiment, a plurality of lenses 13 can be fixed in the moving element 12 through screw fit. Concrete, can design the screw thread that fits with the edge of a plurality of lenses 13 in the moving element 12, as available suction cup holds one side of the eyeglass 13, then a plurality of lenses 13 are screwed in the moving element 12 along the screw thread, so repeatable High, good stability, no need to destroy the connecting structure between the lens 13 and the moving element 12.

In some embodiments, the driving mechanism 15 is an electromagnetic driving mechanism, a piezoelectric driving mechanism or a memory alloy driving mechanism.

Specifically, the electromagnetic drive mechanism includes a magnetic field and a conductor. If the magnetic field moves relative to the conductor, an induced current will be generated in the conductor. The induced current will cause the conductor to be affected by the Ampere force, and the Ampere force will make the conductor move. The conductor here is electromagnetic The part of the drive mechanism that drives the moving element 12 to move; the piezoelectric drive mechanism is based on the inverse piezoelectric effect of the piezoelectric ceramic material: if a voltage is applied to the piezoelectric material, mechanical stress is generated, that is, the conversion between electrical energy and mechanical energy occurs, through Controlling its mechanical deformation to generate rotation or linear motion has the advantages of simple structure and low speed.

The driving mechanism of the memory alloy driving mechanism is based on the characteristics of the shape memory alloy: the shape memory alloy is a special alloy. The shape before deformation is used to achieve the purpose of driving, and it has the characteristics of rapid displacement and free direction.

Referring to FIG. 6 , in some embodiments, the imaging module 10 includes a light turning element 16 disposed in the housing 11 , and the light turning element 16 is used to redirect the incident light incident from the outside of the housing 11 to pass through a plurality of lenses 13 Then pass to the image sensor 14.

More, the light converting element 16 is a prism or a plane mirror. In one example, when the light conversion element 16 is a prism, the prism can be a triangular prism, and the cross section of the prism is a right triangle, wherein the light is incident from one of the right angle sides in the right triangle, and the other side is reflected by the hypotenuse. Exit at right angles. It can be understood that, of course, the incident light can be refracted by the prism and then exit without reflection. The prism can be made of materials with better light transmission properties such as glass and plastic. In one embodiment, one of the surfaces of the prism may be coated with a reflective material such as silver to reflect incident light.

It can be understood that when the light conversion element 16 is a plane mirror, the plane mirror reflects the incident light so as to realize the redirection of the incident light.

In some embodiments, the imaging module 10 includes a mount 17 accommodated in the casing 11 , and the light-transfer element 16 is fixed on the mount 17 .

The mounting base 17 is used for installing the light converting element 16 , or in other words, the mounting base 17 is a carrier of the light converting element 16 , and the light converting element 16 is fixedly arranged on the mounting base 17 . In this way, the position of the light-transfer element 16 can be determined, which is beneficial for the light-transfer element 16 to reflect or refract incident light. The light turning element 16 can be fixed on the mounting base 17 by adhesive bonding to achieve a fixed connection with the mounting base 17 .

In some embodiments, the mounting base 17 can be rotated relative to the housing 11 to adjust the light turning element 16 to turn the direction of the incident light, so that the imaging module 10 can achieve optical anti-shake.

Specifically, the mounting base 17 is movably disposed in the housing 11 , and the mounting base 17 can rotate relative to the housing 11 to adjust the direction in which the light turning element 16 turns the incident light, so that the imaging module 10 realizes optical anti-shake. When the imaging module 10 is shooting, if the imaging module 10 shakes, the image sensor 14 cannot obtain a stable image, and the quality of the formed image is poor. The mounting base 17 can drive the light turning element 16 to rotate in the opposite direction of the shaking of the imaging module 10 , so as to compensate the incident deviation of the incident light and achieve the effect of optical anti-shaking. The mounting base 17 can be connected with the driving mechanism 15, and the driving mechanism 15 can drive the mounting base 17 to rotate.

In this embodiment, the imaging module 10 includes a housing 11 , a moving element 12 , a lens 13 , an image sensor 14 , a driving mechanism 15 , an optical turning element 16 and a mount 17 . The moving element 12 , the lens 13 , the driving mechanism 15 , the light turning element 16 and the mounting seat 17 are all arranged in the housing 11 . The light turning element 16 is disposed on the mounting base 17 , and the lens 13 is accommodated in the moving element 12 . After the incident light enters the housing 11 , it is diverted by the light turning element 16 , and then passes through the lens 13 to reach the image sensor 14 , so that the image sensor 14 obtains an external image.

The lens 13 is accommodated in the moving element 12 , furthermore, the moving element 12 is disposed between the light turning element 16 and the image sensor 14 . The lens 13 is used to image the incident light on the image sensor 14 . In this way, the image sensor 14 can obtain images with better quality.

When the moving element 12 moves with the lens 13 as a whole along the optical axis of the lens 13 , it can form an image on the image sensor 14 , so as to realize the focusing of the imaging module 10 . The moving element 12 includes a plurality of lenses 13 , and when at least one lens 13 moves relative to other lenses, the overall focal length of the imaging module 10 changes, thereby realizing the zoom function of the imaging module 10 .

Please refer to FIG. 5 and FIG. 8 , the camera assembly 100 of the embodiment of the present invention includes the imaging module 10 of any of the above-mentioned embodiments, and the casing 11 is provided with a light inlet 111 , and the imaging module 10 also includes a rotating shaft arranged in the casing 11. The light element 16 , the light turning element 16 is used to turn the incident light incident from the light inlet 111 to the image sensor 14 after passing through a plurality of lenses 13 .

In one example, the angle at which the light turning element 16 turns the incident light incident from the light inlet 111 is 90 degrees. For example, the incident angle of the incident light on the emitting surface of the light conversion element 16 is 45 degrees, and the reflection angle is also 45 degrees. Of course, the angle at which the light turning element 16 turns the incident light can also be other angles, such as 80 degrees, 100 degrees, etc., as long as the incident light can be turned and reach the image sensor 14 .

In this embodiment, the number of the light turning element 16 is single, and at this time, the incident light passes to the image sensor 14 after being turned once. In other embodiments, there are multiple light turning elements 16 , at this time, the incident light is diverted at least twice and then transmitted to the image sensor 14 .

Please refer to FIG. 2, FIG. 8 and FIG. 11. In some embodiments, in the width direction of the imaging module 10, the casing 11 is formed with a groove 112 on one side of the light inlet 111, and the camera assembly 100 also includes a decorative part 20, the decoration part 20 is covered above the light inlet 111 and partially snapped into the groove 112, the decoration part 20 is formed with a through hole 21, the light inlet 111 is exposed through the through hole 21, and the imaging module 10 passes through the through hole 21 Collect external images.

The casing 11 is roughly square in shape. The casing 11 is provided with a light inlet 111 , and incident light enters the imaging module 10 through the light inlet 111 . That is to say, the light turning element 16 is used to turn the incident light incident from the light inlet 111 to the image sensor 14 after turning it. Therefore, it can be understood that the imaging module 10 is a periscope lens module. Compared with the vertical lens module, the height of the periscope lens module is smaller, so that the overall thickness of the electronic device 1000 can be reduced. The vertical lens module means that the optical axis of the lens module is a straight line, or in other words, the incident light is transmitted to the photosensitive device of the lens module along the direction of a straight optical axis.

It can be understood that the decorative part 20 is arranged on the casing 102 and protrudes from the surface of the casing 102, and the light inlet 111 is exposed through the through hole 21 so that the external light enters the imaging module from the light inlet 111 after passing through the through hole 21 within 10.

The decoration part 20 can be made of metal material, for example, the material of the decoration part 20 is stainless steel, and the decoration part 20 can be processed by a polishing process to form a bright surface, so that the decoration part 20 is more beautiful.

Please refer to FIG. 8 . In this embodiment, in the width direction of the imaging module 10 , the casing 11 is formed with a groove 112 on one side of the light inlet 111 , and the decorative part 20 is set above the light inlet 111 and partially Snap into the groove 112.

Please refer to FIG. 10. If the groove is omitted, in order to make the overall thickness of the electronic device thinner, the periscope imaging module 10a partially extends into the decoration 20a in the width direction. Since the periscope imaging module 10a has the same width as Compared with the width of the vertical imaging module 10a, the size of the decorative part 20a is larger at this time, which is not conducive to the appearance of the electronic device, and also makes the electronic device not compact enough.

In this embodiment, the groove 112 is formed on one side of the light inlet 111, and the decoration 20 is covered above the light inlet 111 and partially snapped into the groove 112, so that not only the width of the decoration 20 is smaller, but also The overall height of the camera assembly 100 can also be reduced, which is beneficial to the compact structure and miniaturization of the camera assembly 100 .

Referring to FIG. 5 , in some embodiments, the housing 11 includes a top wall 113 and a side wall 114 extending from a side 1132 of the top wall 113 , the light inlet 111 is formed on the top wall 113 , and the groove 112 is formed on the top wall. At the junction of the wall 113 and the side wall 114 , the decorative member 20 abuts against the top wall 113 .

The light inlet 111 is formed on the top wall 113 , the groove 112 is formed at the junction of the top wall 113 and the side wall 114 , and the decoration part 20 leans against the top wall 113 . In this way, the groove 112 is easy to form, which is beneficial to the manufacture of the housing 11 . In one example, the groove 112 is a stamped form of the housing 11 , that is, the groove 112 can be formed by stamping.

In one example, part of the bottom of the decorative ring 22 is received in the groove 112 , and a part of the decorative ring 22 abuts against the top wall 113 . In other words, the decorative ring 22 and the housing 11 form a complementary structure, and the decorative ring 22 and the housing 11 are fitted together, so that the matching structure of the decorative part 20 and the housing 11 is more compact.

In some embodiments, the groove 112 is elongated, and the groove 112 extends along the length direction of the imaging module 10 ; or the groove 112 is arc-shaped, and the groove 112 surrounds the light inlet 111 .

In this way, the groove 112 fits more compactly with the decoration part 20 . In some embodiments, the groove 112 may be arc-shaped, and the arc-shaped groove 112 surrounds the light inlet 111 . Of course, in other embodiments, the structure and shape of the groove 112 are not limited to the above example, as long as the decoration part 20 and the first imaging module 10 form a complementary structure to reduce the size of the decoration part 20 .

In some embodiments, the number of sidewalls 114 is two, the top wall 113 includes opposite sides 1132, each sidewall 114 extends from a corresponding sidewall 1132, and each sidewall 114 is connected to the top. Grooves 112 are formed at joints of the walls 113 .

In other words, the side walls 114 respectively connect opposite sides of the top wall 113 . In this embodiment, a groove 112 is formed at the junction of each side wall 114 and the top wall 113 . In other words, the number of grooves 112 is two. Certainly, in the embodiment, the number of grooves 112 may also be single, that is to say, grooves 112 are formed at the junction of one of the side walls 114 and the top wall 113 .

Referring to FIGS. 4 and 5 , in some embodiments, the decorative member 20 includes a decorative ring 22 and a flange 23 extending from the bottom of the decorative ring 22 to a direction away from the decorative ring 22 , and part of the bottom of the decorative ring 22 is accommodated in In the groove 112 , the decorative ring 22 partially abuts against the top wall 113 .

The through hole 21 is formed in the decorative ring 22 and passes through the decorative ring 22 and the convex edge 23 . The decorative ring 22 is installed on the casing 102 , and the convex edge 23 is against the casing 102 . In this way, the protruding edge 23 can limit the position of the decoration part 20 and prevent the decoration part 20 from moving out of the casing 102 . In one example, when installing the decoration part 20 , the decoration part 20 is inserted outward from the inside of the casing 102 , and when the flange 23 abuts against the inner surface of the casing 102 , the decoration part 20 is installed to a predetermined position. The decorative part 20 can be fixed on the casing 102 by using glue, or the decorative part 20 can be interference-fitted with the casing 102 , so that the decorative part 20 is not easy to fall off from the casing 102 .

The decorative part 20 may be an integrally formed structure formed by the decorative ring 22 and the flange 23 , for example, the decorative part 20 is manufactured by cutting. In addition, the decorative ring 22 and the flange 23 can also be a separate structure, or in other words, the decorative ring 22 and the flange 23 first form two independent components, and then assembled together by welding to form the decorative part 20 .

It should be noted that, in other embodiments, the flange 23 may be omitted, that is to say, in this embodiment, the decoration 20 only includes the structure of the decoration ring 22 .

Please refer to FIG. 3 , the camera assembly 100 includes a decoration 20 , an imaging module 10 and a bracket 30 . The imaging module 10 is disposed inside the casing 102 . The imaging module 10 is disposed close to the decoration 20 . The imaging module 10 is arranged in the bracket 30 and fixedly connected with the bracket 30 . The decoration part 20 is disposed above the bracket 30 , specifically, the decoration part 20 can abut against the bracket 30 , or be spaced apart from the bracket 30 . The bracket 30 can reduce the impact on the imaging module 10 and improve the life of the imaging module 10 .

The decoration part 20 is formed with a through hole 21 , and the imaging module 10 is exposed to the decoration part 20 through the through hole 21 , or in other words, the imaging module 10 collects external images through the through hole 21 . Specifically, in this embodiment, the through hole 21 is a circular hole. In other embodiments, the shape of the through hole 21 is not limited to the shape shown in the figure. For example, there may be square holes.

In the description of this specification, descriptions referring to the terms "one embodiment", "certain embodiments", "exemplary embodiments", "example", "specific examples", or "some examples" are meant to be combined with Specific features, structures, materials, or characteristics described in the preceding embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (14)

1. An imaging module, characterized in that, comprising: shell; a moving element housed within the housing; contacting a plurality of lenses fixed on said moving element; an image sensor disposed on one side of the plurality of lenses; and The housing is connected to a driving mechanism of the moving element, and the driving mechanism is used to drive the moving element to move along the optical axis of the plurality of lenses to focus and image the plurality of lenses on the image sensor. 2. The imaging module according to claim 1, wherein the moving element is cylindrical, and the plurality of lenses are fixed in the moving element at intervals along the axial direction of the moving element; or The moving element includes two clips, and the two clips clip the plurality of lenses. 3. The imaging module according to claim 1, wherein the plurality of lenses are bonded and fixed to the moving element by glue. 4. The imaging module according to claim 1, wherein the driving mechanism is an electromagnetic driving mechanism, a piezoelectric driving mechanism or a memory alloy driving mechanism. 5. The imaging module according to claim 1, characterized in that, the imaging module comprises a light-transfer element arranged in the housing, and the light-transfer element is used to transform the incident light incident from the outside of the housing After turning, the light passes through the plurality of mirrors and is transmitted to the image sensor. 6 . The imaging module according to claim 1 , wherein the imaging module comprises a mounting seat accommodated in the casing, and the light converting element is fixed on the mounting seat. 6 . 7. The imaging module according to claim 6, wherein the mount can be rotated relative to the housing to adjust the light turning element to turn the direction of the incident light, so that the imaging module group to achieve optical image stabilization. 8. A camera assembly, characterized in that, comprising: The imaging module according to any one of claims 1-4, wherein the housing is provided with a light inlet, and the imaging module further includes a light-transfer element arranged in the housing, and the light-transfer element is used to convert The incident light incident from the light inlet is diverted and transmitted to the image sensor after passing through the plurality of lenses. 9. The camera assembly according to claim 8, characterized in that, in the width direction of the imaging module, the housing is formed with a groove on one side of the light inlet, and the camera assembly also includes a decorative piece, the decorative piece is covered above the light inlet and partially snapped into the groove, the decorative piece is formed with a through hole through which the light inlet is exposed, the The imaging module collects external images through the through hole. 10. The camera assembly according to claim 9, wherein the housing comprises a top wall and a side wall extending from a side of the top wall, the light inlet is formed on the top wall, the The groove is formed at the joint of the top wall and the side wall, and the decorative part is against the top wall. 11. The camera assembly according to claim 10, wherein the groove is elongated, and the groove extends along the length direction of the imaging module; or The groove is arc-shaped, and the groove surrounds the light inlet. 12. The camera assembly according to claim 10, wherein the number of the side walls is two, the top wall includes two opposite sides, and each side wall is formed from a corresponding side wall. One side extends, and the groove is formed at the joint between each side wall and the top wall. 13. The camera assembly according to claim 9, wherein the decorative member comprises a decorative ring and a convex edge extending from the bottom of the decorative ring in a direction away from the decorative ring, and a part of the decorative ring The bottom is accommodated in the groove, and the decorative ring part abuts against the top wall. 14. An electronic device, characterized in that it comprises: chassis; and The camera assembly according to any one of claims 8-13, wherein the camera assembly is arranged on the casing.