CN108810386A - Camera module, CCD camera assembly and electronic device - Google Patents

Abstract

The application provides a camera module, a camera assembly and an electronic device. The camera module includes a housing, a light-transfer element, a lens assembly and an image sensor all arranged in the housing. The housing is provided with a light inlet. The light turning element includes a reflective surface. The outline of the reflective surface is elliptical. The reflective surface is used to deflect the incident light incident from the light inlet, and the deflected incident light passes through the lens assembly and then is transmitted to the image sensor. In the above-mentioned camera module, camera assembly and electronic device, since the outline of the reflective surface is elliptical, while ensuring the normal operation of the light-transfer element, the volume of the light-transfer element is as small as possible, which is beneficial to the camera module, camera Miniaturization of components and electronic devices.

Description

Camera modules, camera components and electronics

technical field

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

Background technique

In order to improve the camera effect of mobile phones, the cameras of some mobile phones use periscope lenses. For example, periscope cameras can triple the optical focal length to obtain images with better quality. Due to the limitation of the thickness of the mobile phone, how to reduce the size of the periscope lens has become a technical problem to be solved.

Contents of the invention

The present application provides a camera module, a camera assembly and an electronic device.

The camera module according to the embodiment of the present application includes a housing, and a light-transfer element, a lens assembly, and an image sensor all disposed in the housing. The housing is provided with a light inlet. The light turning element includes a reflective surface, the outline of the reflective surface is elliptical, and the reflective surface is used for turning the incident light incident from the light inlet, and the incident light after turning passes through the lens assembly Then pass to the image sensor.

The camera assembly in the embodiment of the present application includes a decoration part and the camera module in the above embodiment, and the decoration part is covered above the light inlet.

The electronic device in the embodiment of the present application includes a casing and the camera assembly in the above embodiment, and the camera assembly is arranged on the casing.

In the above-mentioned camera module, camera assembly and electronic device, since the outline of the reflective surface is elliptical, while ensuring the normal operation of the light-transfer element, the volume of the light-transfer element is as small as possible, which is beneficial to the camera module, camera Miniaturization of components and electronic devices.

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

Description of drawings

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

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

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

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

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

FIG. 5 is an exploded schematic diagram of a first camera module according to an embodiment of the present application;

6 is a schematic cross-sectional view of a first camera module according to an embodiment of the present application;

7 is a schematic cross-sectional view of a first camera module according to another embodiment of the present application;

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 a second camera module according to an embodiment of the present application;

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

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

Fig. 12 is a schematic perspective view of a light converting element according to an embodiment of the present application;

Fig. 13 is a schematic perspective view of a light converting element according to another embodiment of the present application;

Fig. 14 is a schematic diagram of the projection of the lens assembly on the reflective surface according to the embodiment of the present application;

Fig. 15 is a schematic diagram of projection of a lens assembly on a reflective surface according to another embodiment of the present application;

16 is a schematic diagram of light reflection imaging of the first camera module in the related art;

17 is a schematic diagram of light reflection imaging of the first camera module according to the embodiment of the present application;

Fig. 18 is a schematic structural diagram of a camera module in the related art;

FIG. 19 is a schematic structural diagram of a camera module according to an embodiment of the present application.

Description of main component symbols:

Electronic device 1000, casing 102, camera assembly 100, decoration 10, through hole 11, first sub-hole 111, second sub-hole 112, decorative ring 12, convex edge 13, first camera module 20, housing 21, Light inlet 211, groove 212, top wall 213, side wall 214, light turning element 22, light incident surface 222, backlight surface 224, reflective surface 226, light exit surface 228, mounting seat 23, arc surface 231, first Lens assembly 24, lens 241, lens light inlet 242, projection 243, moving element 25, clip 222, first image sensor 26, driving mechanism 27, driving device 28, arc guide rail 281, central axis 282, second camera A module 30 , a second lens assembly 31 , a second image sensor 32 , and a bracket 40 .

Detailed ways

Embodiments of the present application 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, are only for explaining the present application, and should not be construed as limiting the present application.

The following disclosure provides many different implementations or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and arrangements of specific examples are described below. Of course, they are examples only and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or reference letters in various 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 application 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 application 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 application.

Referring to FIG. 2 and FIG. 3 , the camera assembly 100 includes a decoration 10 , a first camera module 20 , a second camera module 30 and a bracket 40 . The decoration 10 is disposed on the casing 102 and protrudes from the surface of the casing 102 . Both the first camera module 20 and the second camera module 30 are disposed inside the casing 102 . Both the first camera module 20 and the second camera module 30 are disposed close to the decoration 10 . Both the first camera module 20 and the second camera module 30 are arranged in the bracket 40 and fixedly connected with the bracket 40 .

The decorative part 10 is disposed above the bracket 40 , specifically, the decorative part 10 may abut against the bracket 40 or be spaced apart from the bracket 10 . The bracket 40 can reduce the impact on the first camera module 20 and the second camera module 30 and improve the service life of the first camera module 20 and the second camera module 30 .

The decoration part 10 can be made of metal material, for example, the material of the decoration part 10 is stainless steel, and the decoration part 10 can be processed by a polishing process to form a bright surface, so as to make the decoration part 10 more beautiful.

Please refer to FIG. 4 , the decorative part 10 is formed with a through hole 11, and the first camera module 20 and the second camera module 30 are exposed to the decorative part 10 through the through hole 11, or in other words, the first camera module 20 and the second camera module The camera modules 30 collect external images through the through holes 11 . Specifically, in this embodiment, the through hole 11 includes a first sub-hole 111 and a second sub-hole 112 , and the first sub-hole 111 and the second sub-hole 112 are arranged at intervals. In other words, the first subhole 111 and the second subhole 112 are not connected.

Certainly, in other implementation manners, the first sub-hole 111 and the second sub-hole 112 may communicate to form an integral hole. The first camera module 20 collects external images through the first sub-hole 111 , and the second camera module 30 collects external images through the second sub-hole 112 . In this embodiment, the first sub-hole 111 is a circular hole, and the second sub-hole 112 is a square hole.

In other embodiments, the shapes of the first sub-hole 111 and the second sub-hole 112 are not limited to those shown in the illustration. For example, both the first sub-hole 111 and the second sub-hole 112 are circular holes; as another example, both the first sub-hole 111 and the second sub-hole 112 are square holes.

The decorative part 10 includes a decorative ring 12 and a convex edge 13 , and the convex edge 13 extends from the bottom of the decorative ring 12 to a direction away from the decorative ring 12 . The through hole 11 is formed in the decorative ring 12 and runs through the decorative ring 12 and the convex edge 13 . The decorative ring 12 is installed on the casing 102 , and the convex edge 13 is against the casing 102 , as shown in FIG. 10 . In this way, the protruding edge 13 can limit the position of the decoration part 10 and prevent the decoration part 10 from moving out of the casing 102 .

In one example, when installing the decoration 10 , the decoration 10 is inserted outward from the inside of the casing 102 , and when the flange 13 abuts against the inner surface of the casing 102 , the decoration 10 is installed to a predetermined position. The decorative part 10 can be fixed on the casing 102 with glue, or the decorative part 10 can be interference-fitted with the casing 102 , so that the decorative part 10 is not easy to fall off from the casing 102 .

The decorative part 10 may be an integrally formed structure formed by the decorative ring 12 and the flange 13 , for example, the decorative part 10 is manufactured by cutting. In addition, the decorative ring 12 and the flange 13 can also be a separate structure, or in other words, the decorative ring 12 and the flange 13 are firstly formed as two independent components, and then assembled together by welding or other processes to form the decorative part 10 .

It should be noted that, in other embodiments, the flange 13 may be omitted, that is to say, in this embodiment, the decoration 10 only includes the structure of the decoration ring 12 .

The first camera module 20 and the second camera module 30 are arranged side by side, that is to say, the second camera module 30 is arranged on one side of the first camera module 20 . In this embodiment, the first camera module 20 and the second camera module 30 are arranged in a line, or in other words, the first camera module 20 and the second camera module 30 are arranged along the same straight line. In other embodiments, the first camera module 20 and the second camera module 30 may be arranged in an L shape. The first camera module 20 and the second camera module 30 can be arranged at intervals, or they can lean against each other.

In this embodiment, the first camera module 20 is located on the right side of the second camera module 30 , or in other words, the first camera module 20 is closer to the middle of the electronic device 1000 than the second camera module 30 . Of course, it can be understood that in other embodiments, the positions of the first camera module 20 and the second camera module 30 can be interchanged, or in other words, the first camera module 20 is located on the left side of the second camera module 30 .

In the first camera module 20 and the second camera module 30, one of the camera modules can be a black and white camera, and the other camera module can be an RGB camera; or one camera module can be an infrared camera, and the other camera module can be an infrared camera. RGB camera; or one camera module is an RGB camera, and the other camera module is also an RGB camera; or one camera module is a wide-angle camera, and the other camera module is a telephoto camera, etc.

In other implementations, the second camera module 30 may be omitted, or the electronic device 1000 may include more than three camera modules.

Please refer to FIGS. 5-7. In this embodiment, the first camera module 20 includes a housing 21, a light turning element 22, a mount 23, a first lens assembly 24, a moving element 25, a first image sensor 26 and a driving mechanism 27. .

The light turning element 22 , the mounting seat 23 , the first lens assembly 24 and the moving element 25 are all arranged in the housing 21 . The light turning element 22 is disposed on the mounting base 23 , the first lens assembly 24 is accommodated in the moving element 25 , and the driving mechanism 27 connects the moving element 25 and the casing 21 . After entering the housing 21 , the incident light is turned by the light turning element 22 , and then passes through the first lens assembly 24 to reach the first image sensor 26 , so that the first image sensor 26 obtains an external image. The driving mechanism 27 drives the moving element 25 to drive the first lens assembly 24 to move along the optical axis of the first lens assembly 24 , so that the first lens assembly 24 is focused on the first image sensor 26 for imaging.

The housing 21 is roughly square in shape. The housing 21 is provided with a light inlet 211 , and incident light enters the first camera module 20 through the light inlet 211 . That is to say, the light turning element 22 is used to turn the incident light incident from the light inlet 211 to the first image sensor 26 after turning it. Therefore, it can be understood that the first camera module 20 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 light inlet 211 is exposed through the through hole 11 so that external light enters the first camera module 20 from the light inlet 211 after passing through the through hole 11 .

Please refer to FIG. 8 , in this embodiment, in the width direction of the first camera module 20 , the housing 21 is formed with a groove 212 on one side of the light inlet 211 , and the decorative part 10 is arranged above the light inlet 211 and Partially snap into groove 212 .

Please refer to Fig. 10, if the groove is omitted, in order to make the overall thickness of the electronic device thinner, the periscope camera module 20a partially extends into the decoration 10a in the width direction, because the periscope camera module 20a has the same width as Compared with the width of the vertical camera module, the size of the decorative part 10a 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.

Please refer to FIG. 5 and FIG. 8 again, and in this embodiment, the groove 212 is formed on one side of the light inlet 211, and the decoration 10 is covered above the light inlet 211 and partially snapped into the groove 212, not only Making the width of the decorative part 10 smaller can also reduce the overall height of the camera assembly 100 , which is beneficial to the compact structure and miniaturization of the camera assembly 100 .

Specifically, the housing 21 includes a top wall 213 and a side wall 214 . The side wall 214 extends from the side 2131 of the top wall 213 . The top wall 213 includes two opposite sides 2131, the number of side walls 214 is two, and each side wall 214 extends from a corresponding side 2131, or in other words, the side walls 214 are respectively connected to the opposite sides of the top wall 213. sides. The light inlet 211 is formed on the top wall 213 , the groove 212 is formed at the junction of the top wall 213 and the side wall 214 , and the decorative part 10 leans against the top wall 213 . In this way, the groove 212 is easy to form, which is beneficial to the manufacture of the casing 21 . In one example, the groove 212 is a stamped form of the housing 21 , that is, the groove 212 can be formed by stamping.

In one example, part of the bottom of the decorative ring 12 is received in the groove 212 , and a part of the decorative ring 12 abuts against the top wall 213 . In other words, the decorative ring 12 and the shell 21 form a complementary structure, and the decorative ring 12 and the shell 21 are fitted together, so that the matching structure of the decorative part 10 and the shell 21 is more compact.

In this embodiment, a groove 212 is formed at the junction of each side wall 214 and the top wall 213 . In other words, the number of grooves 212 is two. Certainly, in the embodiment, the number of grooves 212 may also be single, that is to say, grooves 212 are formed at the junction of one of the side walls 214 and the top wall 213 .

In this embodiment, the groove 212 is elongated, and the groove 212 extends along the length direction of the first camera module 20 . In this way, the groove 212 fits more compactly with the decoration part 10 . In some embodiments, the groove 212 may be arc-shaped, and the arc-shaped groove 212 surrounds the light inlet 211 . Of course, in other implementations, the structure and shape of the groove 212 are not limited to the above examples, as long as the decoration 10 and the first camera module 20 form a complementary structure to reduce the size of the decoration 10 .

The light converting element 22 is a prism or a plane mirror. In one example, when the light conversion element 22 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 22 is a plane mirror, the plane mirror reflects the incident light so as to realize the redirection of the incident light.

In one example, referring to FIG. 6 and FIG. 12 , the light converting element 22 has a light incident surface 222 , a backlight surface 224 , a light reflection surface 226 , and a light output surface 228 . The light incident surface 222 is close to and faces the light entrance 211 . The backlight surface 224 is away from the light entrance 211 and opposite to the light incident surface 222 . The reflective surface 226 is connected to the light incident surface 222 and the backlight surface 224 . The light emitting surface 228 is connected to the light incident surface 222 and the backlight surface 224 . The reflective surface 226 is arranged obliquely relative to the light incident surface 222 , and the light emitting surface 228 is arranged opposite to the light reflective surface 226 .

Specifically, during the light conversion process, the light passes through the light inlet 211 and enters the light conversion element 22 from the light incident surface 222, then is reflected by the reflective surface 226, and finally reflects from the light output surface 228 to the light conversion element 22 to complete the light conversion process. During the conversion process, the backlight surface 224 and the mounting base 23 are fixedly arranged so that the light turning element 22 remains stable.

Please refer to Fig. 6, please refer to Fig. 13 and Fig. 14, in another example, the light turning element 22 includes a reflective surface 226, and the outline of the reflective surface 226 is elliptical, and the reflective surface 226 is used to convert the incident light from the light inlet 211 The incident light is turned, and the turned incident light passes through the first lens assembly 24 and then passes to the first image sensor 26 .

In addition, the first lens assembly 24 includes a lens light entrance 242 , and the contour shape of the projection 243 of the lens light entrance 242 on the reflective surface 226 is the same as the contour shape of the reflective surface 226 .

In FIG. 14 , the contour area of the reflective surface 226 is equal to the contour area of the projection 243 . In other embodiments, the outline area of the reflective surface 226 is greater than the outline area of the projection 243 , as shown in FIG. 15 .

Specifically, the profile of the reflective surface 226 is elliptical, and the profile of the lens light entrance 242 may be circular. It can be understood that, since the reflective surface 226 is inclined relative to the light-emitting surface 228, the profile shape of the projection 243 of the circular lens light entrance 242 on the light-reflective surface 226 is elliptical, and the lens light entrance 242 is on the light-reflective surface 226. The outline shape of the projection 243 is the same as the outline shape of the reflective surface 226, therefore, the outline of the reflective surface 226 is elliptical.

In this way, since the outline of the reflective surface 226 is elliptical, while ensuring the normal operation of the light turning element 22, the volume of the light turning element 22 can be made as small as possible, which is beneficial to the first camera module 20, the camera assembly 100 and Miniaturization of the electronic device 1000 .

It can be understood that the area of the reflective surface 226 except the projection 243 of the lens light entrance 242 on the reflective surface 226 has little or no light reflection. Therefore, on the light converting element 22 , the removal of the area other than the projection 243 of the lens light entrance 242 on the reflective surface 226 will not cause the light converting element 22 to fail to work normally. Moreover, in this way, the volume of the light converting element 22 can be reduced, thereby making the volume of the first camera module 20 smaller.

In the present application, the lens light entrance 242 is an entrance for the light incident side of the first lens assembly 24 to allow light to enter the first lens assembly 24 , and the outline of the lens light entrance 242 is the outline of the entrance.

As shown in Figure 16, in the related art, due to the requirement of reflecting the incident light, the reflective surface 226a of the light turning element 22a is inclined relative to the horizontal direction, and the light turning element 22a is an asymmetric structure in the reflection direction of the light, thus turning The actual optical area of the bottom of the light element 22a is smaller than that of the top of the light conversion element 22a. It can be understood that the part of the reflective surface 226a away from the light inlet 211 has less light or cannot reflect light.

Therefore, referring to FIG. 17 , the light conversion element 22 in the embodiment of the present application cuts away the corners far away from the light entrance compared with the light conversion element 22a in the related art, so that not only does not affect the light reflection effect of the light conversion element 22, but also The overall thickness of the light converting element 22 is reduced.

In some embodiments, the angle α of the reflective surface 226 relative to the light incident surface 222 is inclined at 45 degrees.

In this way, the incident light is better reflected and converted, and has a better light conversion effect.

The light converting element 22 can be made of glass, plastic and other materials with relatively good light transmission. In one embodiment, a reflective material such as silver can be coated on one surface of the light conversion element 22 to reflect incident light.

In some embodiments, the light incident surface 222 and the backlight surface 224 are arranged in parallel. Specifically, along the light incident direction of the light entrance 211 , the cross section of the light converting element 22 is approximately trapezoidal, or in other words, the light converting element 22 is approximately trapezoidal.

In some embodiments, both the light incident surface 222 and the backlight surface 224 are perpendicular to the light output surface 228 .

In this way, a relatively regular light conversion element 22 can be formed, so that the optical path of the incident light is relatively straight, and the conversion efficiency of the light is improved.

In some embodiments, the distance between the light incident surface 222 and the backlight surface 224 ranges from 4.8 mm to 5.0 mm.

Specifically, the distance between the light incident surface 222 and the backlight surface 224 may be 4.85mm, 4.9mm, 4.95mm and so on. In other words, the range of the distance between the light incident surface 222 and the backlight surface 224 can be understood as that the height of the light turning element 22 is 4.8-5.0 mm. The volume of the light-transfer element 22 formed by the light incident surface 222 and the backlight surface 224 in the above distance range is moderate, and can be better fitted into the first camera module 20 to form a more compact and miniaturized first camera module 20. , the camera assembly 100 and the electronic device 1000 meet more demands of consumers.

In some embodiments, the light incident surface 222 , the backlight surface 224 , the light reflective surface 226 and the light output surface 228 are all hardened to form a hardened layer.

When the light-transfer element 22 is made of materials such as glass, the material of the light-transfer element 22 itself is relatively brittle. 226 and the light-emitting surface 228 are hardened, moreover, all surfaces of the light-changing element can be hardened to further improve the strength of the light-turning element. Hardening treatment, such as infiltrating lithium ions, attaching films to the above surfaces without affecting the conversion of light by the light converting element 22 .

In one example, the angle at which the light turning element 22 turns the incident light incident from the light inlet 211 is 90 degrees. For example, the incident angle of the incident light on the emitting surface of the light conversion element 22 is 45 degrees, and the reflection angle is also 45 degrees. Of course, the angle at which the light turning element 22 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 to reach the first image sensor 26 .

In this embodiment, the number of the light turning element 22 is one, and at this time, the incident light passes to the first image sensor 26 after being turned once. In other embodiments, there are multiple light turning elements 22 , at this time, the incident light is diverted at least twice and then transmitted to the first image sensor 26 .

The mounting base 23 is used for mounting the light converting element 22 , or in other words, the mounting base 23 is a carrier of the light converting element 22 , and the light converting element 22 is fixed on the mounting base 23 . In this way, the position of the light-transfer element 22 can be determined, which is beneficial for the light-transfer element 22 to reflect or refract incident light. The light turning element 22 can be fixed on the mounting base 23 by adhesive bonding to achieve a fixed connection with the mounting base 23 .

Referring to FIG. 6 again, in one example, the mount 23 is movably disposed in the housing 21 , and the mount 23 can rotate relative to the housing 21 to adjust the direction in which the light turning element 22 turns the incident light.

The mounting base 23 can drive the light turning element 22 to rotate towards the opposite direction of the shaking of the first camera module 20 , thereby compensating the incident deviation of the incident light of the light inlet 211 and realizing the effect of optical anti-shaking.

The first lens assembly 24 is accommodated in the moving element 25 , and further, the first lens assembly 24 is disposed between the light transfer element 22 and the first image sensor 26 . The first lens assembly 24 is used to image the incident light on the first image sensor 26 . In this way, the first image sensor 26 can obtain images with better quality.

The first lens assembly 24 can form an image on the first image sensor 26 when it moves as a whole along its optical axis, so as to achieve focusing of the first camera module 20 . The first lens assembly 24 includes a plurality of lenses 241. When at least one lens 241 moves, the overall focal length of the first lens assembly 24 changes, thereby realizing the zoom function of the first camera module 20. More, it is driven by the drive mechanism 27 The moving element 25 moves in the housing 21 for zooming purposes.

In the example of FIG. 6 , in some embodiments, the moving element 25 is cylindrical, and a plurality of lenses 241 in the first lens assembly 24 are fixed in the moving element 25 at intervals along the axial direction of the moving element 25; or as shown in FIG. 7. The moving element 25 includes two clamping pieces 252, and the two clamping pieces 252 clamp the plurality of lenses 241 in the first lens assembly 24 between the two clamping pieces 252.

It can be understood that since the moving element 25 is used to fix a plurality of lenses 241, the length of the required moving element 25 is relatively large, and the moving element 25 can be cylindrical, square, etc., with a relatively certain cavity shape, so that the moving element 25 can move The element 25 is packaged in a tube so that the lens 241 can be better arranged, and the lens 241 can be better protected in the cavity, so that the lens 241 is not easy to shake.

In addition, in the example of FIG. 7 , the moving element 25 is two clips 252 that clamp a plurality of lenses 241 between the two clips 252, which not only has a certain stability, but also reduces the weight of the moving element 25. The power required by the driving mechanism 27 to drive the moving element 25 can be reduced, and the design difficulty of the moving element 25 is also relatively low, and the lens 241 is also easier to be disposed on the moving element 25 .

Of course, the moving element 25 is not limited to the above-mentioned cylindrical shape and two clips 252. In other embodiments, the moving element 25 may include three, four or more clips 252 to form a more stable structure. , or a simpler structure such as a clip 252 ; or a rectangular body, a circular body, etc. with cavities to accommodate various regular or irregular shapes of the lens 241 . On the premise of ensuring the normal imaging and operation of the camera module 10 , specific selections can be made.

The first image sensor 26 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, the driving mechanism 27 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 driving mechanism that drives the moving element 25 to move; the piezoelectric driving 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, 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.

Please refer to FIG. 6 again, further, the first camera module 20 further includes a driving device 28, the driving device 28 is formed with an arc-shaped guide rail 281, and the driving device 28 drives the mounting base 23 along the arc-shaped guide rail 281 around the arc-shaped guide rail 281. The central axis 282 rotates to realize the optical anti-shake of the first camera module 20 .

In this way, since the driving device 28 uses the arc-shaped guide rail 281 to drive the mounting base 23 with the light turning element 22 to rotate together, the friction force between the driving device 28 and the mounting base 23 is small, which is conducive to the rotation of the mounting base 23 Stable, improving the optical anti-shake effect of the first camera module 20.

Specifically, please refer to FIG. 18 , in the related art, the mounting seat (not shown) is rotatably connected to the rotating shaft 23a, and the mounting seat rotates around the rotating shaft 23a to drive the light turning element 22a to rotate together. Assume that the frictional force is f1, the radius of the rotating shaft 23a is R1, the thrust is F1, and the turning radius is R1. Then the ratio K1 of friction torque to thrust torque is K1=f1R1/F1A1. Since the light turning element 22a only needs to be rotated slightly, F1 cannot be too large; and the camera module itself needs to be thin and short so that the size of the light turning element 22a cannot be too large, and the space for increasing A is also limited, so that the influence of friction cannot be further improved. eliminate.

Please refer to FIG. 19 , and in this application, the mounting base 23 rotates along the arc guide rail 281 , and the radius of the arc guide rail 281 is R2. At this time, the ratio K2 of the frictional torque to the rotational torque is K2=f2R2/F2A. When f2, R2, and F2 do not change significantly, the corresponding thrust rotation The moment becomes R2, and R2 may not be limited by the size of the light-changing element 22, and may even be several times more than R1. Therefore, in this case, the influence of frictional force on the rotation of the light turning element 22 can be greatly reduced (the size of K2 is reduced), thereby improving the rotation accuracy of the light turning element 22 and making the optical anti-shake of the first camera module 20 The effect is better.

In some embodiments, the mounting seat 23 includes an arc surface 231 , and the arc surface 231 is arranged concentrically with the arc guide rail 281 and cooperates with the arc guide rail 281 . In other words, the center of the arc surface 231 coincides with the center of the arc guide rail 281 . This makes the mounting base 23 and the driving device 28 more compact.

Referring to FIGS. 5-6 , in some embodiments, the central axis 282 of the arc-shaped guide rail 281 is perpendicular to the optical axis of the light inlet 211 . Specifically, the light entering direction and the light receiving direction of the first image sensor 26 . For convenience of description, the width direction of the first camera module 20 is defined as the X direction, the height direction is defined as the Y direction, and the length direction is defined as the Z direction. Thus, the light entering direction of the light inlet 211 is the Y direction, the light receiving direction of the first image sensor 26 is the Z direction, and the central axis 282 of the arc guide rail 281 is the X direction.

The driving device 28 drives the light turning element 22 to rotate around the X direction, so as to realize the Y direction optical anti-shake.

In some embodiments, the central axis 282 is located outside the first camera module 20 . In this way, the radius R2 of the arc-shaped guide rail 281 is relatively large, which can reduce the adverse effect of friction on the rotation of the mounting base 23 .

In some embodiments, the drive means 28 is formed at the bottom of the housing 21 . In other words, the driving device 28 and the casing 21 are integrally structured. In this way, the structure of the first camera module 20 is more compact.

In some embodiments, the driving device 28 drives the mounting base 23 to rotate in an electromagnetic manner. In one example, the driving device 28 is provided with a coil, and the mounting base 23 is fixed with an electromagnetic sheet. After the coil is energized, the coil can generate a magnetic field to drive the electromagnetic sheet to move, thereby driving the mounting base 23 and the light-transmitting element to rotate together.

Certainly, in other implementation manners, the driving device 28 may drive the mounting base 23 to move by means of piezoelectric driving or memory alloy driving. Please refer to the above description for the piezoelectric driving method and memory alloy driving method, and will not repeat them here.

Please refer to FIG. 9 , in this embodiment, the second camera module 30 is a vertical lens module, of course, in other embodiments, the second camera module 30 may also be a periscope lens module. The second camera module 30 includes a second lens assembly 31 and a second image sensor 32, the second lens assembly 31 is used to image the light on the second image sensor 32, the incident optical axis of the second camera module 30 is in line with the second The optical axes of the lens assemblies 31 coincide.

In this embodiment, the second camera module 30 is a fixed-focus lens module, therefore, the lenses of the second lens assembly 31 are less, so that the height of the second camera module 30 is lower, which is beneficial to reduce the size of the electronic device 1000. thickness.

The type of the second image sensor 32 may be the same as the type of the first image sensor 26 , which will not be repeated here.

To sum up, the first camera module 20 of the embodiment of the present application includes a housing 21, a light-transfer element 22, a mount 23, a first image sensor 26, and a driving device. The light-transfer element 22, the mount 23, and the first image sensor 26 are all arranged in the casing 21.

The housing 21 is provided with a light inlet 211, and the light turning element 22 is fixed on the mounting base 23. The light turning element 22 is used to divert the incident light incident from the light inlet 211 and transmit it to the first image sensor 26 to make the first image The sensor 26 senses the light outside the first camera module 20,

The driving device 28 is formed with an arc-shaped guide rail 281 , and the driving device 28 drives the mounting base 23 to rotate along the arc-shaped guide rail 281 around the central axis 282 of the arc-shaped guide rail 281 to achieve optical stabilization of the first camera module 20 .

In the first camera module 20 of the embodiment of the present application, since the driving device 28 uses the arc guide rail 281 to drive the mounting base 23 with the light turning element 22 to rotate together, the distance between the driving device 28 and the mounting base 23 The small frictional force is beneficial to the stable rotation of the mounting base 23 and improves the optical anti-shake effect of the first camera module 20 .

Based on the above, the embodiment of the present application provides a camera module 20 , the first camera module 20 includes a housing 21 , and a light converting element 22 , a first lens assembly 24 and a first image sensor 26 all disposed in the housing 21 .

The housing 21 defines a light inlet 211 . The light turning element 22 includes a reflective surface 226. The outline of the reflective surface 226 is elliptical. The reflective surface 226 is used to deflect the incident light incident from the light inlet 211. The deflected incident light passes through the first lens assembly 24 and then passes to the second An image sensor 26 .

In the above-mentioned first camera module 20, camera assembly 100 and electronic device 1000, since the outline of the reflective surface 226 is elliptical, while ensuring the normal operation of the light switching element 22, the volume of the light switching element 22 is as small as possible , which is beneficial to the miniaturization of the camera module 20 , the camera assembly 100 and the electronic device 1000 .

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 The specific features, structures, materials, or characteristics described in the above embodiments or examples are included in at least one embodiment or example of the present application. 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 application 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 application. The scope of the application is defined by the claims and their equivalents.

Claims (11)

1. A camera module, characterized in that, comprising: a housing, the housing is provided with a light inlet; and The light-transfer element, the lens assembly and the image sensor are all arranged in the housing, the light-transfer element includes a reflective surface, the outline of the reflective surface is elliptical, and the reflective surface is used to convert light from the light inlet The incident light is diverted, and the diverted incident light is transmitted to the image sensor after passing through the lens assembly. 2. The camera module according to claim 1, wherein the camera module further comprises a mounting base and a driving device, the light turning element is fixed on the mounting base, and the driving device is formed with an arc An arc-shaped guide rail, the driving device drives the mounting base to rotate along the arc-shaped guide rail around the central axis of the arc-shaped guide rail to realize the optical anti-shake of the camera module. 3 . The camera module according to claim 2 , wherein the mounting seat comprises an arc surface arranged concentrically with the arc guide rail and matched with the arc guide rail. 4 . 4. The camera module according to claim 2, wherein the central axis is perpendicular to the optical axis of the light inlet. 5. The camera module according to claim 1, wherein the camera module comprises: a moving element arranged on one side of the image sensor and accommodated in the housing, the lens assembly is fixed on the moving element; 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 lens assembly to focus and image the lens assembly on the image sensor. 6. The camera module according to claim 5, wherein the moving element is cylindrical, and a plurality of lenses in the lens assembly are fixed in the moving element at intervals along the axial direction of the moving element ;or The moving element includes two clips between which the plurality of lenses in the lens assembly are sandwiched. 7. A camera assembly, characterized in that, comprising: The camera module according to any one of claims 1-6; and A decorative part, the decorative part is covered above the light inlet of the camera module. 8. The camera assembly according to claim 7, characterized in that, in the width direction of the camera module, a groove is formed on one side of the light inlet in the housing, and the decorative part is partially snapped into the groove, the decorative part is formed with a through hole, the light inlet is exposed through the through hole, and the camera module collects external images through the through hole. 9. The camera assembly according to claim 8, 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, and 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. 10. The camera assembly according to claim 9, 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. 11. An electronic device, characterized in that it comprises: chassis; and The camera assembly according to any one of claims 7-10, wherein the camera assembly is arranged on the casing.