WO2022057196A1

WO2022057196A1 - Camera module and electronic device

Info

Publication number: WO2022057196A1
Application number: PCT/CN2021/075120
Authority: WO
Inventors: 江传东; 赵伟
Original assignee: 欧菲光集团股份有限公司; 南昌欧菲光电技术有限公司
Priority date: 2020-09-21
Filing date: 2021-02-03
Publication date: 2022-03-24
Also published as: CN111835953B; CN111835953A

Abstract

Disclosed in the present application are a camera module and an electronic device comprising the camera module. The camera module comprises a first lens, a second lens and a light steering assembly connected between the first lens and the second lens. The light steering assembly is provided with a first incident surface and a second incident surface opposite to each other, the first incident surface collects light facing the first incident surface, and the second incident surface collects light facing the second incident surface. The light steering assembly is further provided with a first incident surface and a second exit surface, the first incident surface faces the first lens, and the second exit surface faces the second lens. Light irradiated on the first incident surface is emitted from the first exit surface and emitted into the first lens. The light irradiated on the second incident surface is emitted from the second exit surface and emitted into the second lens. The present application provides a periscopic camera module integrating a front-facing camera and a rear camera.

Description

Camera module and electronic equipment

technical field

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

Background technique

In recent years, the mobile phone industry has developed rapidly. At present, most mobile phones on the market have camera functions. With the improvement of users' requirements for shooting performance and the advancement of technology, the cameras used in mobile phones are becoming more and more high-end. And generally have both front and rear cameras at the same time. However, in the traditional technology, the front camera and the rear camera of the mobile phone are independent. Due to the limitation of the thickness and space of the mobile phone, the front camera has low pixels and poor zoom effect, which cannot fully meet the needs of users.

SUMMARY OF THE INVENTION

The present application provides a novel periscope camera module, which realizes the integration of the front camera and the rear camera. The present application also provides an electronic device including the camera module.

In a first aspect, the present application provides a camera module. The camera module includes a first lens, a second lens, and a light redirecting assembly connected between the first lens and the second lens, and the light redirecting assembly is provided with a first incident surface and a a second incident surface, the first incident surface collects the light facing the first incident surface, and the second incident surface collects the light facing the second incident surface;

The light redirecting component is further provided with a first exit surface and a second exit surface, the first exit surface faces the first lens, and the second exit surface faces the second lens; The light on the incident surface is emitted from the first outgoing surface and enters the first lens; the light irradiated on the second incident surface is emitted from the second outgoing surface and enters the second lens.

In the embodiment of the present application, the light from the outside is not directly irradiated on the first lens and the second lens, but on the first incident surface or the second incident surface of the light redirecting component, and then irradiated after changing a certain angle through the light redirecting component For the first lens or the second lens, that is, the first lens and the second lens provided in the present application are both periscope lenses, so that increasing the focal length of the first lens and the second lens does not increase the thickness of the electronic device, And the light turning component integrates the function of collecting light from the first lens and the second lens.

In one embodiment, the optical axis of the first lens is parallel or coincident with the optical axis of the second lens.

In the embodiment of the present application, the first lens, the light steering component and the second lens are sequentially arranged along the length or width of the electronic device, so that the camera module integrating the front camera and the rear camera will not increase the thickness of the electronic device , so that both the first lens and the second lens can be provided with multiple lenses, which can not only improve the imaging quality of the rear camera in the camera module, but also improve the imaging quality of the front camera in the camera module.

In one embodiment, the optical axis of the first lens and the optical axis of the second lens are perpendicular to each other.

In this embodiment, the first lens and the second lens are arranged in different directions relative to the light turning assembly. For example, the first lens is arranged relative to the light turning assembly along the width direction of the electronic device, and the second lens is arranged along the electronic device relative to the light turning assembly. The arrangement of the equipment in the length direction avoids that the arrangement of the first lens, the light steering component and the second lens in the same direction will cause the camera module to be too long and affect the arrangement of the internal components of the electronic equipment.

In one embodiment, the camera module further includes a first photosensitive element and a second photosensitive element, the first photosensitive element is located on a side of the first lens away from the light turning component, and the second photosensitive element The photosensitive element is located on the side of the second lens away from the light turning component, the light emitted from the first lens is imaged on the first photosensitive element, and the light emitted from the second lens is imaged on the first photosensitive element. Imaging on two photosensitive elements.

In the embodiment of the present application, after the light from the outside world is converted to a certain angle through the light turning component, it passes through the lens and then directly irradiates the photosensitive element, so as to avoid the light loss caused by the re-turning of the light passing through the first lens or the second lens, and improve the The camera module utilizes the external light collected by the light steering assembly, thereby improving the imaging quality of the camera module.

In one embodiment, the light turning assembly is a prism assembly or a flat mirror assembly.

In the embodiment of the present application, when the light turning component is a prism component, the light refraction principle is used to realize the light turning; when the light turning component is a plane mirror component, the light reflection principle is used to realize the light turning.

In one embodiment, the prism assembly includes a first prism and a second prism, and the first prism includes the first incident surface, the first exit surface, and a connection between the first incident surface and the first prism. The first reflecting surface between the first exit surfaces, the first incident surface and the first exit surface are perpendicular to each other; the second prism includes the second entrance surface, the second exit surface and the connection A second reflecting surface between the second incident surface and the second exit surface, the second incident surface and the second exit surface are perpendicular to each other, and the first reflecting surface is fixedly attached to the second exit surface. the second reflective surface.

In the embodiment of the present application, the light turning assembly is provided with a first prism corresponding to the first lens, and a second prism corresponding to the second lens, the light in the first prism will not enter the second prism, and the second prism The light inside will not enter the first prism, so that the light entering the first prism and the light entering the second prism are spaced apart from each other, so as to avoid mutual interference between the light entering the first lens and the second lens, so as to ensure the imaging quality of the camera module.

In an embodiment, the first reflective surface and the second reflective surface are fixedly connected by shading glue.

In the embodiment of the present application, the integration of light steering is achieved by the inclined surfaces of the two prisms (the first reflecting surface and the second reflecting surface), and since the length of the inclined surfaces in the prism is greater than the length of any right-angled surface, the two inclined surfaces are Lamination does not add additional size to the light turning assembly. In addition, the first prism and the second prism are fixed with light-shielding glue, so that the light-shielding glue forms a light-shielding piece between the first prism and the second prism, so as to prevent the light inside the camera module from entering the first prism and the second prism and disturbing the first photosensitive. The imaging of the element and the second photosensitive element, thereby improving the imaging quality of the camera module.

In an embodiment, the first reflection surface and/or the second reflection surface is provided with a reflection enhancement film.

In the embodiment of the present application, the first reflecting surface of the first prism and the second reflecting surface of the second prism are provided with anti-reflection films, so that the light entering the prism from the incident surface can be effectively reflected and emitted from the exit surface, reducing the energy of light waves loss, thereby further improving the imaging quality of the camera module.

In one embodiment, both the first incident surface and the second incident surface are provided with a filter film, and the filter film can filter infrared light in the light.

In the embodiment of the present application, when the outside light enters the light turning component through the filter film, the filter film can absorb the infrared light, only allow visible light to enter the light turning component, and prevent stray light from entering the first lens and the second lens. The lens makes the photos taken by the camera module more realistic, thereby improving the quality of the camera module. In addition, in the embodiment of the present application, the filter film can be directly disposed on the first incident surface and the second incident surface by a coating process, without using a conventional bracket to fix it, so that the camera module not only has the function of filtering infrared light, but also saves A bracket for fixing the filter is conventional, thereby reducing the size of the camera module.

In one embodiment, the camera module further includes a carrier and an anti-shake component, the carrier is used for fixing the light turning component, and is surrounded by the light turning component, and the anti-shake component is located at The carrier is away from the side of the light turning component, and the anti-shake component is used to push the carrier to move.

In the embodiment of the present application, under the action of the anti-shake component, the light redirecting component changes the light path so that the light redirecting component has the function of optical anti-shake, and since the light passing through the first lens or the second lens is turned by the light redirecting component The rear light makes the first lens and the second lens have optical anti-shake function, which further improves the performance of the camera module and improves the user experience. For example, the current travel video live broadcast brings a stable picture effect.

In one embodiment, the camera module further includes a rotation shaft, the rotation shaft is connected to the carrier, and the rotation shaft is used to drive the carrier to rotate by a preset angle.

In one embodiment, the camera module further includes a first voice coil motor and a second voice coil motor, the first voice coil motor is arranged around the periphery of the first lens, and the second voice coil motor The motor is arranged around the periphery of the second lens.

In the embodiment of the present application, the front motor can drive the first lens to move to realize the automatic focusing of the first lens, and the rear motor can drive the second lens to move to realize the automatic focusing of the second lens. It can be understood that both the first lens and the second lens can realize automatic focusing, and obtain a longer focusing distance, which further improves the imaging quality of the camera module and improves the photographing experience.

Among them, in the traditional technology, due to the limitation of the thickness of the electronic device, the front camera adopts a fixed focus mode, the lens is fixed, and automatic focusing cannot be performed. In the embodiment of the present application, the first lens and the second lens are both periscope lenses, and the first lens and the second lens are arranged along the length or width direction of the electronic device, so that the first lens and the second lens can be realized when the first lens and the second lens are realized. On the basis of the autofocus function, the thickness of the electronic device will not be increased.

In one embodiment, the second lens is a telephoto lens.

In the embodiment of the present application, the second lens is a telephoto lens, so that the camera module captures a farther image, and the captured image quality is clearer, thereby improving the performance of the camera module. In addition, since the second lens is arranged along the length or width of the electronic device, increasing the number of lenses in the rear camera will not increase the thickness of the electronic device. Therefore, in the embodiment of the present application, the second lens is a telephoto lens and does not increase the thickness of the electronic device. Additional thickness of the electronic device will be added.

In an embodiment, the camera module further includes a zoom assembly, the zoom assembly is mounted on the light turning assembly, and the zoom assembly is used to change the focal length of the camera module. Wherein, after receiving the zoom command, the zoom component can deform to change the focal length of the zoom component, thereby changing the focal length of the camera module.

In the embodiment of the present application, a zoom component capable of realizing a zoom function is integrated on the light steering component, and the camera module can realize the zoom of the camera module without changing the relative position of the lens in the lens, so as to simplify the camera module zoom design.

In one embodiment, the zoom component includes a piezoelectric layer and a transparent deformation portion, the piezoelectric layer is fixedly connected to the transparent deformation portion, and the piezoelectric layer is deformed under the driving of an electrical signal to drive the The transparent deformation portion is deformed.

The piezoelectric layer is located on a side of the transparent deformable portion close to the light redirecting component; or, the piezoelectric layer is located on a side of the transparent deformable portion away from the light redirecting component.

In the embodiment of the present application, the piezoelectric layer in the zoom component is deformed when receiving the electrical signal, so as to drive the transparent deformation portion to deform, and the focal length of the camera module is changed to realize the zoom of the camera module.

In one embodiment, the light turning assembly is provided with an installation groove, and part or all of the zoom assembly is accommodated in the installation groove, and the installation groove faces the light turning assembly from the exit surface of the light turning assembly or, the installation groove is recessed from the incident surface of the light redirecting component toward the interior of the light redirecting component.

In the embodiment of the present application, the light steering assembly is provided with a mounting groove for accommodating the zoom assembly, and at least part of the structure of the zoom assembly is multiplexed with the space of the light steering assembly, and the zoom assembly does not need to occupy a larger space of the camera module, so that the realization of On the premise of the zoom function of the camera module, it is beneficial to the miniaturization of the camera module.

In one embodiment, the groove wall of the installation groove includes a bottom wall and a side wall connected to the bottom wall, the side wall is provided with a stepped structure, the piezoelectric layer is mounted on the stepped structure, and The piezoelectric layer is spaced apart from the bottom wall.

In the embodiment of the present application, the groove wall of the installation groove is provided with a stepped structure. When the piezoelectric layer is installed in the stepped structure, the piezoelectric layer and the bottom wall of the installation groove are spaced apart to provide a deformation space for the deformation of the piezoelectric layer, that is, The zoom space is provided for the zoom of the zoom component, thereby effectively realizing the zoom of the camera module.

In one embodiment, when the piezoelectric layer is located on a side of the transparent deformation part close to the light turning component, the zoom assembly further includes a transparent cover plate, and the transparent cover plate is located on the transparent deformation part. The side of the portion away from the piezoelectric layer is fixed to the light turning component.

In the embodiment of the present application, the transparent deformation portion is located between the transparent cover plate and the piezoelectric layer, the space between the piezoelectric layer and the transparent cover plate defines the shape of the transparent deformation portion, and the piezoelectric layer is driven by an electrical signal to face The side away from or close to the transparent deformation part is deformed, and the space between the piezoelectric layer and the transparent cover plate changes. Since the transparent deformation part is fixed to the piezoelectric layer, the shape of the transparent deformation part also changes, thus changing the The focal length of the camera module.

In a second aspect, the present application further provides an electronic device. The electronic device includes a casing and a camera module as described above, the camera module is mounted on the casing, the casing is provided with a front and a back arranged opposite to each other, and the first incident surface collects and projects on the The light from the front surface, and the second incident surface collects the light projected on the back surface.

In the embodiment of the present application, the first lens in the camera module is the lens in the front camera of the electronic device, the second lens is the lens in the rear camera of the electronic device, and the camera module converts the first lens through the light turning component It is integrated with the second lens, so that the front and rear cameras of the electronic device are integrated into one. In addition, the light from the outside is not directly irradiated on the first lens and the second lens, but on the light redirecting component in the camera module. The light redirecting component changes a certain angle and then illuminates the first lens or the second lens. That is, the front and rear cameras of the electronic device provided by the present application are all periscope lenses.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

1 is a schematic structural diagram of an electronic device provided by the application;

Fig. 2 is the structural representation of the camera module shown in Fig. 1;

3 is a schematic diagram of the camera module shown in FIG. 2 in the first embodiment;

Fig. 4 is the exploded structure schematic diagram of the light turning assembly shown in Fig. 3;

FIG. 5 is a schematic cross-sectional view of the structure shown in FIG. 2 along the line A-A

6 is a schematic diagram of the camera module shown in FIG. 2 in the second embodiment;

FIG. 7 is a schematic diagram of a partial exploded structure of the light turning assembly shown in FIG. 6

8 is a schematic diagram of the camera module shown in FIG. 2 in a third embodiment;

9 is a partial cross-sectional schematic diagram of the camera module shown in FIG. 2 in the fourth embodiment;

Figure 10 is a schematic diagram of a partial exploded structure of the zoom assembly shown in Figure 9;

Fig. 11 is a partial cross-sectional structural schematic diagram of the light turning assembly shown in Fig. 9;

FIG. 12 is a schematic diagram of the light redirecting assembly shown in FIG. 2 in another embodiment;

FIG. 13 is a schematic diagram of the light redirecting assembly shown in FIG. 2 in yet another embodiment.

detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. The embodiments of the present application and features in the embodiments may be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

Embodiments of the present application provide an electronic device. The electronic device may be a mobile phone, a tablet computer, an e-reader, a laptop computer, a vehicle-mounted device, a wearable device, and other devices. In the embodiments of the present application, the electronic device is a mobile phone as an example for description.

Please refer to FIG. 1 , the electronic device 100 includes a casing 101 and a camera module 102 . The camera module 102 is mounted on the casing 101 . The camera module 102 enables the electronic device 100 to realize functions such as capturing images or making instant video calls. The electronic device 100 is provided with a light-transmitting area. The light-transmitting area allows outside light to enter the camera module 102 to acquire images.

The casing 101 is provided with a front side 11 and a back side 12 arranged opposite to each other. When the user uses the electronic device 100, the front face 11 generally faces the user. The front surface 11 is provided with a front light-transmitting area, and the rear surface 12 is provided with a rear light-transmitting area. The front light-transmitting area is used for light from the outside to enter the front camera of the electronic device 100 , and the rear light-transmitting area is used for the light from the outside to enter the rear camera of the electronic device 100 . It can be understood that, in the embodiment of the present application, the front side 11 and the back side 12 of the electronic device 100 opposite to each other are provided with light-transmitting areas, which are used for the front camera and the rear camera of the electronic device 100 to capture images.

Further, please refer to FIG. 2 and FIG. 3 together, the camera module 102 includes a first lens 10 , a second lens 20 , and a light turning component 40 connected between the first lens 10 and the second lens 20 . Wherein, as shown in FIG. 3 , the shape of the first lens 10 and the second lens 20 of the present application is an example of a cuboid or a cube structure, and the actual structure shape is not limited.

The light turning component 40 is used for collecting light, and after converting the collected light to a certain angle, the light is projected on the first lens 10 or the second lens 20 respectively. Illustratively, in some embodiments, the light turning assembly 40 is a prism assembly. When the light turning component 40 is a prism component, the light refraction principle is used to realize the turning of light, and because the prism component adopts transparent materials (such as glass, crystal, etc.), the loss of light during the turning process is reduced, which is beneficial to ensure the camera mode Image quality of group 102 . In some other embodiments, the light turning assembly 40 may also be a flat mirror assembly, which is not limited in this application. When the light turning component 40 is a plane mirror component, the light reflection principle is utilized to realize the turning of the light. In the embodiments of the present application, the light turning component 40 is taken as an example of a prism component for description.

As shown in FIG. 3 , the light redirecting component 40 is provided with a first incident surface 411 , a first exit surface 412 , a second incident surface 421 and a second exit surface 422 . The first incident surface 411 is disposed opposite to the second incident surface 421 . The first incident surface 411 collects the light facing the first incident surface 411 , and the second incident surface 421 collects the light facing the second incident surface 421 . The light irradiated on the first incident surface 411 is emitted from the first outgoing surface 412 , and the light irradiated on the second incident surface 421 is emitted from the second outgoing surface 422 .

The first outgoing surface 412 intersects with the first incident surface 411 , and the second outgoing surface 422 intersects with the second incident surface 421 . It can be understood that the first outgoing surface 412 and the first incident surface 411 form a certain angle, and the second outgoing surface 422 and the second incident surface 421 form a certain angle. The light redirecting component 40 converts the light irradiated on the first incident surface 411 to a certain angle and then exits from the first exit surface 412 , and converts the light irradiated on the second incident surface 421 to a certain angle and exits from the second exit surface 422 . For example, when the first incident surface 411 and the first exit surface 412 form a 90-degree angle, the light redirecting component 40 converts the light irradiated on the first incident surface 411 by 90 degrees and then emits the light.

Further, the first exit surface 412 faces the first lens 10 , and the second exit surface 422 faces the second lens 20 . The light irradiated on the first incident surface 411 exits from the first exit surface 412 and enters the first lens 10 ; the light illuminated on the second incident surface 421 exits from the second exit surface 422 and enters the second lens 20 . The camera module 102 further includes a first photosensitive element 31 and a second photosensitive element 32 . The light emitted from the first lens 10 is imaged on the first photosensitive element 31 . The light emitted from the second lens 20 is imaged on the second photosensitive element 32 .

The first lens 10 is provided with a first lens group 110 , and the second lens 20 is provided with a second lens group 201 . It can be understood that the external light irradiated on the first incident surface 411 is converted to a certain angle by the light redirecting component 40 , and then exits from the first incident surface 411 and passes through the first lens group 110 , and is finally imaged on the first photosensitive element 31 . The external light irradiated on the second incident surface 421 is converted to a certain angle by the light redirecting component 40 , and then exits from the second incident surface 421 and passes through the second lens group 201 , and is finally imaged on the second photosensitive element 32 .

In one embodiment, the first incident surface 411 collects the light projected on the front surface 11 , and the second incident surface 421 collects the light projected on the back surface 12 . Wherein, the first incident surface 411 of the light turning component 40 is exposed relative to the front surface 11 , so that the first incident surface 411 can collect the light of the front camera. The second incident surface 421 of the light turning component 40 is exposed relative to the back surface 12 , and the second incident surface 421 is used to collect light from the rear camera.

It can be understood that the first lens 10 is a lens in the front camera of the electronic device 100 , and the second lens 20 is a lens in the rear camera of the electronic device 100 . The light from the outside toward the front surface 11 is irradiated on the first incident surface 411 of the light diverting component 40 , exits from the first exit surface 412 , passes through the first lens 10 , and then irradiates on the photosensitive surface of the first photosensitive element 31 . The light from the outside toward the back surface 12 is irradiated on the second incident surface 421 of the light diverting component 40 , exits from the second exit surface 422 , passes through the second lens 20 , and then irradiates on the photosensitive surface of the second photosensitive element 32 .

In the embodiment of the present application, the external light is not directly irradiated on the first lens 10 and the second lens 20 , but on the first incident surface 411 or the second incident surface 421 of the light redirecting component 40 , passing through the light redirecting component 40 After changing a certain angle, the light is illuminated on the first lens 10 or the second lens 20, that is, the first lens 10 and the second lens 20 provided in the present application are both periscope lenses, and the light steering component 40 integrates the acquisition of the first lens 10 and the second lens 20 light in one function.

Please continue to refer to FIG. 2 , in one embodiment, the optical axis of the first lens 10 and the optical axis of the second lens 20 are parallel or coincident. Exemplarily, the first incident surface 411 and the first exit surface 412 are perpendicular to each other. The second incident surface 421 and the second exit surface 422 are perpendicular to each other. It can be understood that the light redirecting component 40 converts the light projected on the first incident surface 411 by 90 degrees and then emits it, and also converts the light projected on the second incident surface 421 by 90 degrees and then outputs it.

It can be understood that the first exit surface 412 facing the first lens 10 is disposed opposite to the second exit surface 422 facing the second lens 20 . The first lens 10 , the light turning assembly 40 and the second lens 20 are sequentially arranged in the same direction. Since the first incident surface 411 of the light turning component 40 collects light from the front surface 11 of the electronic device 100, the second incident surface 421 of the light turning component 40 collects light from the back surface 12 of the electronic device 100, so that the first incident surface 411 faces the second incident surface The direction of 421 is the thickness direction of the electronic device 100 . Since the first incident surface 411 and the first exit surface 412 are perpendicular to each other, and the second incident surface 421 and the second exit surface 422 are perpendicular to each other, the direction of the first exit surface 412 toward the second exit surface 422 can be the length of the electronic device 100 . direction or width.

It can be understood that the first lens 10 and the second lens 20 can be arranged along the length direction or the width direction of the electronic device 100 . As shown in FIG. 3 , the Z direction represents the thickness direction of the electronic device 100 . In one embodiment, the X-direction represents the longitudinal direction of the electronic device 100 . In another embodiment, the X direction represents the width direction of the electronic device 100 . In the first embodiment of the present application, the first lens 10 , the light redirecting component 40 and the second lens 20 are sequentially arranged along the width direction of the electronic device 100 as an example for description. In the embodiment of the present application, the first lens 10 , the light turning assembly 40 and the second lens 20 are arranged along the width direction of the electronic device 100 , so that the light turning assembly 40 can be as close to the edge of the electronic device 100 as possible, which is beneficial to the electronic device 100 narrow borders.

In the embodiment of the present application, the first lens 10 , the light steering assembly 40 and the second lens 20 are arranged in sequence along the length or width of the electronic device 100 , so that the camera module 102 integrating the front camera and the rear camera does not The thickness of the electronic device 100 is increased, so that both the first lens 10 and the second lens 20 can be provided with multiple lenses, which can not only improve the imaging quality of the rear camera in the camera module 102, but also improve the front camera in the camera module 102. The image quality of the camera.

It can be understood that, when the first lens 10 , the light steering assembly 40 and the second lens 20 are arranged in sequence along the length or width of the electronic device 100 , due to the space limitation inside the electronic device 100 or the first lens 10 and the second lens 20 When the first lens 10 and the second lens 20 can be set directly opposite, the optical axis of the first lens 10 and the optical axis of the second lens 20 coincide; when the first lens 10 and the second lens 20 can be staggered In this case, the optical axis of the first lens 10 is parallel to the optical axis of the second lens 20 . In the embodiment of the present application, the optical axis of the first lens 10 and the optical axis of the second lens 20 are parallel or coincident, so that the camera module 102 can be appropriately adjusted according to the internal space of the electronic device 100 to improve the internal components of the electronic device 100 capacity.

In one embodiment, the second lens 20 is a telephoto lens. For example, the focal length of the rear camera is greater than or equal to 80mm. Understandably, when the focal length of the camera is greater than 80 mm, the camera is a telephoto lens.

In the embodiment of the present application, the second lens 20 is a telephoto lens, so that the camera module 102 captures a farther image, and the captured image quality is clearer, thereby improving the performance of the camera module 102 .

In general, the longer the focal length of the lens, the more lenses are used. In the embodiment of the present application, the second lens 20 is a telephoto lens, and the number of lenses included in the second lens 20 is correspondingly large. In the embodiment of the present application, since the second lens 20 is arranged along the length or width of the electronic device 100, increasing the number of lenses in the second lens 20 will not increase the thickness of the electronic device 100. Therefore, in the embodiment of the present application, the thickness of the electronic device 100 is not increased. Among them, the second lens 20 will not increase the thickness of the electronic device 100 on the basis of realizing the telephoto lens. It can be understood that the dimensions of the electronic device 100 in the length and width directions are relatively large, so that the second lens 20 can add a lens to realize a telephoto lens.

Further, the first photosensitive element 31 is located on the side of the first lens 10 away from the light turning assembly 40 . The second photosensitive element 32 is located on the side of the second lens 20 away from the light turning assembly 40 . That is, the photosensitive surface of the first photosensitive element 31 is perpendicular to the optical axis of the first lens 10 . The photosensitive surface of the second photosensitive element 32 is perpendicular to the optical axis of the second lens 20 .

As shown in FIG. 3 , in the first embodiment of the present application, the first photosensitive element 31 , the first lens 10 , the light redirecting assembly 40 , the second lens 20 and the second photosensitive element 32 are sequentially arranged in the same direction. The light emitted from the first emitting surface 412 directly irradiates the photosensitive surface of the first photosensitive element 31 without changing the optical path after passing through the first lens 10 . The light emitted from the second emitting surface 422 directly illuminates the photosensitive surface of the second photosensitive element 32 without changing the optical path after passing through the second lens 20 .

In the embodiment of the present application, after the light from the outside world is changed to a certain angle through the light turning component 40, it passes through the lens and then directly irradiates the photosensitive element, so as to avoid the light loss caused by the re-turning of the light passing through the first lens 10 or the second lens 20. Larger, the utilization rate of the external light collected by the light turning assembly 40 by the camera module 102 is improved, thereby improving the imaging quality of the camera module 102 .

In the first embodiment provided in the present application, the first lens 10 and the second lens 20 are respectively located on opposite sides of the light redirecting assembly 40 . In other embodiments, the first lens 10 and the second lens 20 can also be located on two adjacent sides of the light redirecting assembly 40, for example, the first lens 10, the light redirecting assembly 40 and the second lens 20 are arranged in sequence. The "L" shape, that is, the optical axis of the first lens 10 and the optical axis of the second lens 20 are perpendicular to each other, which is not limited in this application.

In the conventional technology, the light turning component is a single prism, and the switching between the front and rear cameras is realized by rotating the single prism to change the orientation of the right-angle surface of the prism. However, the rotation of the prism will not only bring extra size, but also need to add an additional driving structure to control the prism to rotate by a large amount (for example, 180 degrees), which is not conducive to the miniaturization of the camera module.

Further, please continue to refer to FIG. 3 and FIG. 4 , the prism assembly (light turning assembly 40 ) includes a first prism 41 and a second prism 42 . The first prism 41 includes a first incident surface 411, a first exit surface 412, and a first reflection surface 413 connected between the first incident surface 411 and the first exit surface 412. The second prism 42 includes a second incident surface 421 , a second exit surface 422 , and a second reflection surface 423 connected between the second incident surface 421 and the second exit surface 422 .

The first prism 41 and the second prism 42 may be, but not limited to, total reflection prisms. As shown in FIG. 4 , in the embodiment of the present application, the first prism 41 and the second prism 42 are both total reflection prisms as an example for description. Exemplarily, the shapes of the first prism 41 and the second prism 42 are triangular prisms. The incident surface (the first incident surface 411 and the second incident surface 421 ) and the exit surface (the first exit surface 412 and the second exit surface 422 ) are two right-angle surfaces of the total reflection prism, and the reflecting surface (the first reflecting surface 413 and the The second reflection surface 423) is the inclined surface of the total reflection prism. Light enters from one right-angled face of the total reflection prism, and exits from the other right-angled face after being reflected by the reflective face. It can be understood that the first prism 41 is used to change the optical path of the external light, so that the external light is projected on the front lens. The second prism 42 is used to change the optical path of the external light, so that the external light is projected on the rear lens.

In the embodiment of the present application, the light turning assembly 40 is provided with a first prism 41 corresponding to the first lens 10 and a second prism 42 corresponding to the second lens 20 , the light in the first prism 41 will not enter the first prism 41 The second prism 42, the light in the second prism 42 will not enter the first prism 41, so that the light entering the first prism 41 and the light entering the second prism 42 are spaced apart from each other to avoid entering the first lens 10 and the second lens 20 The light rays interfere with each other, so as to ensure the imaging quality of the camera module 102 .

The first reflecting surface 413 is fixedly attached to the second reflecting surface 423 . The first reflecting surface 413 is fixedly attached to the second reflecting surface 423 , so that the first prism 41 and the second prism 42 are fixedly connected, that is, the light turning assembly 40 is an integral structure, which facilitates the assembly of the camera module 102 .

In the embodiment of the present application, the integration of light steering is achieved through the inclined surfaces of the two prisms (the first reflecting surface 413 and the second reflecting surface 423 ), and since the length of the inclined surfaces in the prism is greater than the length of any right-angle surface, the two The fit of the bevels does not additionally increase the size of the light turning assembly 40 .

In one embodiment, only a single prism is provided in the middle of the first lens 10 and the second lens 20 , and the light switching between the first lens 10 and the second lens 20 is performed by rotating the single prism by 180 degrees. However, since the length of the inclined plane in the prism is greater than the length of any right-angle plane, a sufficient space is provided between the first lens 10 and the second lens 20 for a single prism to rotate.

It can be understood that when a single prism is used in the middle of the first lens 10 and the second lens 20, and the light switching of the first lens 10 and the second lens 20 is performed by rotating the single prism, the size of the camera module 102 will be relatively small. However, in the present application, the light conversion between the first lens 10 and the second lens 20 is realized through the assembly of two prisms, which not only avoids the increase of the size of the camera module 102 due to the rotating prism, but also avoids the difficulty in setting The controlled rotation structure that rotates 180 degrees is beneficial to the controllability of the camera module 102 .

In one embodiment, the first reflective surface 413 and the second reflective surface 423 are fixedly connected by shading glue.

In this embodiment, the light-shielding glue is used to fix the first prism 41 and the second prism 42, so that the light-shielding glue forms a light-shielding member between the first prism 41 and the second prism 42 to prevent the light inside the camera module 102 from entering the first prism 41 and the second prism 42 to interfere with the imaging of the first photosensitive element 31 and the second photosensitive element 32 , thereby improving the imaging quality of the camera module 102 .

Please continue to refer to FIG. 4 , in one embodiment, the first reflection surface 413 and/or the second reflection surface 423 is provided with a reflection enhancement film 44 . As shown in FIG. 4 , the structure and thickness of the anti-reflection film 44 are for illustration only, and the actual structure and thickness are not limited.

The anti-reflection film 44 may be, but is not limited to, a metal anti-reflection film 44 . The anti-reflection film 44 may use, but not limited to, a coating process to cover the first reflective surface 413 and/or the second reflective surface 423 with a reflective material. As shown in FIG. 4 , in the embodiment of the present application, the first reflection surface 413 and the second reflection surface 423 are both provided with the reflection enhancement film 44 as an example for description. In other embodiments, the reflection enhancement film 44 may be provided only on the first reflection surface 413 , or the reflection enhancement film 44 may be provided only on the second reflection surface 423 , which is not limited in the present application.

In the embodiment of the present application, the first reflecting surface 413 of the first prism 41 and the second reflecting surface 423 of the second prism 42 are provided with an anti-reflection film 44, so that the light entering the prism from the incident surface can be effectively reflected from the exit surface output to reduce the loss of light wave energy, thereby further improving the imaging quality of the camera module 102 .

Further, please continue to refer to FIG. 4 , the first incident surface 411 and the second incident surface 421 are both provided with a filter film 45 . The filter film 45 can filter infrared light in the light. It can be understood that when the external light enters the camera module 102 , it needs to pass through the light filtering film 45 before entering the light turning component 40 . Wherein, in the embodiment of the present application, the filter film 45 is disposed on the first incident surface 411 and the second incident surface 421, and in other embodiments, the filter film 45 can also be disposed on the first exit surface 412 and the second incident surface 421. The exit surface 422 is not limited in the present application. Wherein, as shown in FIG. 4 , the structure and thickness of the filter film 45 are only for illustration, and the actual structure and thickness are not limited.

In the embodiment of the present application, when the light from the outside enters the light turning component 40 through the filter film 45, the filter film 45 can absorb the infrared light, only allow visible light to enter the light turning component 40, and prevent stray light from entering the first light turning component 40. The lens 10 and the second lens 20 make the photos taken by the camera module 102 more realistic, thereby improving the quality of the camera module 102 . In addition, in the embodiment of the present application, the filter film 45 can be directly disposed on the first incident surface 411 and the second incident surface 421 by a coating process, without using a conventional bracket for fixing, so that the camera module 102 not only has the function of filtering infrared light. , and saves the conventional bracket for fixing the filter, thereby reducing the size of the camera module 102 .

As shown in FIG. 4 , in one embodiment, the first outgoing surface 412 and the second outgoing surface 422 are both provided with an anti-reflection film 46 . The anti-reflection film 46 is disposed on the first exit surface 412 and the second exit surface 422 by a coating process. In other embodiments, the first incident surface 411 and the second incident surface 421 can also be provided with an anti-reflection film 46 , which is not limited in this application. Wherein, as shown in FIG. 4 , the structure and thickness of the anti-reflection film 46 are only for illustration, and the actual structure and thickness are not limited.

The anti-reflection coating 46 is also called an anti-reflection coating. In this embodiment, the surfaces of the first prism 41 and the second prism 42 are provided with an anti-reflection film 46 , which can reduce or eliminate the reflected light on the surfaces of the first prism 41 and the second prism 42 , so that the The imaging is clearer, thereby improving the imaging quality of the camera module 102 .

In one embodiment, the camera module 102 further includes a first voice coil motor (not shown in the figure) and a second voice coil motor (not shown in the figure). The first voice coil motor is arranged around the periphery of the first lens 10 . The second voice coil motor is arranged around the periphery of the second lens 20 .

In the embodiment of the present application, the front motor can drive the first lens 10 to move to realize the automatic focusing of the first lens 10 , and the rear motor can drive the second lens 20 to move to realize the automatic focusing of the second lens 20 . It can be understood that both the first lens 10 and the second lens 20 can realize automatic focusing, obtain a longer focusing distance, further improve the imaging quality of the camera module 102, and improve the photographing experience.

Among them, in the conventional technology, due to the limitation of the thickness of the electronic device 100 , the front-camera cameras all adopt a fixed focus mode, the lens is fixed, and automatic focusing cannot be performed. In the embodiment of the present application, the first lens 10 and the second lens 20 are both periscope lenses, and the first lens 10 and the second lens 20 are arranged along the length or width of the electronic device 100 , so that the first lens 10 and the second lens 20 are arranged along the length or width direction of the electronic device 100 . Based on the auto-focusing function of the lens 10 and the second lens 20, the thickness of the electronic device 100 will not be increased.

In other embodiments, the voice coil motor may not be provided around the first lens 10, that is, the first lens 10 may be a fixed-focus lens or an auto-focus lens, which is not limited in this application.

Further, please refer to FIG. 3 and FIG. 5 together, the camera module 102 further includes a carrier 50 and an anti-shake assembly 60. The carrier 50 is used for fixing the light turning assembly 40 and is arranged around the periphery of the light turning assembly 40 . The anti-shake assembly 60 is located on the side of the carrier 50 away from the light turning assembly 40 . The anti-shake assembly 60 is used to push the carrier 50 to move. It can be understood that the light turning assembly 40 is fixedly installed in the carrier 50 , and the anti-shake assembly 60 pushes the carrier 50 to move, so that the anti-shake assembly 60 drives the carrier 50 and the light turning assembly 40 to move together.

In the embodiment of the present application, under the action of the anti-shake assembly 60, the light turning assembly 40 changes the light path so that the light turning assembly 40 has the function of optical anti-shake, and because the light passing through the first lens 10 or the second lens 20 is The light redirected by the light redirecting component 40 enables both the first lens 10 and the second lens 20 to have an optical anti-shake function, which further improves the performance of the camera module 102 and improves the user experience. to stabilize the picture effect.

The carrier 50 is provided with a front light-transmitting portion and a rear light-transmitting portion disposed opposite to each other, and the front light-transmitting portion is opposite to the first incident surface 411 . The rear light-transmitting portion is disposed opposite to the second incident surface 421 . The anti-shake assembly 60 is arranged alternately with the front light-transmitting portion and the rear light-transmitting portion.

As shown in FIG. 5 , in one embodiment, the anti-shake assembly 60 includes a magnetic member 61 and a coil 62 . The magnetic member 61 is fixed on the periphery of the carrier 50 . The coil 62 is disposed opposite to the magnetic member 61 . The camera module 102 also includes a base 70 . The base 70 is used to fix the coil 62 .

In the embodiment of the present application, by disposing the magnetic member 61 on the carrier 50, and disposing the coil 62 opposite to the magnetic member 61 on the base 70, the coil 62 acts on the magnetic member 61 through the production of magnetic force, and drives the light steering assembly 40 to move. , and then change the optical path to realize the optical anti-shake of the light turning component 40 .

The anti-shake assembly 60 further includes an elastic piece 63 and a position sensor 64 . One end of the elastic piece 63 is connected to the base 70 , and the other end is connected to the carrier 50 . The position sensor 64 is fixed on the base 70 . The position sensor 64 is used to sense the position of the light turning assembly 40 relative to the base 70 . It can be understood that the position sensor 64 is located inside the coil 62 and is fixed relative to the coil 62 .

In the embodiment of the present application, the elastic piece 63 provides a buffer force when the magnetic member 61 and the coil 62 cooperate to drive the carrier 50 and the light steering assembly 40 to move, so as to prevent the carrier 50 and the light steering assembly 40 from suddenly moving relative to the base 70 . On the other hand, due to the elasticity of the elastic sheet 63 , the carrier 50 and the light turning assembly 40 are reset under the action of the elastic sheet 63 .

In the embodiment of the present application, the position sensor 64 is used to sense the position of the light turning assembly 40 relative to the base 70, and by determining the position of the light turning assembly 40, the offset of the light turning assembly 40 is determined, thereby determining the camera mode The amount of displacement for group 102 stabilization.

Further, in one embodiment, the camera module 102 further includes a rotating shaft 80 . The rotating shaft 80 is connected to the carrier 50 . The rotating shaft 80 is used to drive the carrier 50 to rotate by a predetermined angle. The range of the preset angle is from the direction of the light turning assembly 40 toward the first lens 10 being shifted by 2 degrees to the direction of the light turning assembly 40 being shifted toward the second lens 20 by the luminance. It can be understood that, as shown in FIG. 5 , the preset angle is in the range of 2 degrees to the left and 2 degrees to the right.

The rotating shaft 80 can drive the carrier 50 and the light turning component 40 to rotate under the driving of the magnetic member 61 and the coil 62, so as to expand the viewing angle of the light collected by the first incident surface 411 and the second incident surface 421, so that the first lens 10 and the second incident surface 421 can collect light. The two lenses 20 obtain a wider visual range, thereby further improving the quality of the camera module 102 .

Further, please continue to refer to FIG. 6 and FIG. 7 . In the second embodiment provided by the present application, most of the technical solutions in this embodiment that are the same as those in the first embodiment will not be repeated. In the second embodiment, the first lens 10 and the second lens 20 are located on opposite sides of the light turning assembly 40 which are arranged adjacent to each other. As shown in FIG. 6 , the first exit surface 412 is connected to the second incident surface 421 and is connected to the second exit surface 422 . In one embodiment, the optical axis of the first lens 10 and the optical axis of the second lens 20 are perpendicular to each other. It can be understood that the first lens 10 , the light redirecting assembly 40 and the second lens 20 are arranged in sequence to present an “L” shape.

As shown in FIG. 6 , the first lens 10 is arranged in the Y direction relative to the light turning assembly 40 , and the second lens 20 is arranged in the X direction relative to the light turning assembly 40 . It can be understood that when X represents the width direction of the electronic device 100 , Y represents the length direction of the electronic device 100 ; when X represents the length direction of the electronic device 100 , Y represents the width direction of the electronic device 100 .

As shown in FIG. 7 , when the external light enters the second incident surface 421 from the Z direction, it is reflected from the second exit surface 422 through the second reflecting surface 423 and exits along the X direction; when the external light enters the first incident surface from the Z direction 411, it is reflected by the first reflection surface 413 and emitted from the first output surface 412 along the Y direction. It can be understood that changing the installation positions of the first prism 41 and the second prism 42 in the light turning assembly 40 can change the relative positional relationship between the first exit surface 412 and the second exit surface 422, thereby changing the first lens 10 and the second lens. 20 relative positional relationship.

In this embodiment, the first lens 10 and the second lens 20 are arranged in different directions relative to the light turning assembly 40, for example, the first lens 10 is arranged along the width direction of the electronic device 100 relative to the light turning assembly 40, and the second lens 20 is arranged along the length direction of the electronic device 100 relative to the light turning assembly 40 to avoid the camera module 102 being too long due to the arrangement of the first lens 10 , the light turning assembly 40 and the second lens 20 in the same direction, which will affect the interior of the electronic device 100 device arrangement.

Further, please continue to refer to FIG. 8 . In the third embodiment provided by the present application, most of the technical solutions in this embodiment that are the same as those in the previous embodiments will not be repeated. In the third embodiment, the second lens 20 includes a first sub-lens 210 and a second sub-lens 220 . The optical axis of the second sub-lens 220 is perpendicular to the optical axis of the first sub-lens 210 . It can be understood that the optical axis of the second sub-lens 220 and the optical axis of the first lens 10 are perpendicular to each other. As shown in FIG. 8 , the first lens 10 , the light steering assembly 40 and the first sub-lens 210 are arranged along the X direction, and the steering member 300 and the second sub-lens 220 are arranged along the Z direction. In one embodiment, the first lens 10 , the light turning component 40 and the first sub-lens 210 are arranged along the width direction of the electronic device 100 , and the turning member 300 and the second sub-lens 220 are arranged along the thickness direction of the electronic device 100 . . In another embodiment, the first lens 10 , the light steering assembly 40 and the first sub-lens 210 are arranged along the width direction of the electronic device 100 , and the steering member 300 and the second sub-lens 220 may also be along the length of the electronic device 100 Orientation arrangement.

In one embodiment, a turning member 300 is provided between the first sub-lens 210 and the second sub-lens 220 of the second lens 20 . The turning member 300 converts the light emitted from the first sub-lens 210 to a certain angle and then enters the second sub-lens 220 to change the light path of the rear camera. As shown in FIG. 8 , in the embodiment of the present application, the turning member 300 is used as a prism for description as an example, that is, the turning member 300 converts the light by 90 degrees and then emits it.

In this embodiment, when the number of second lens groups 201 in the second lens 20 is large, in order to prevent the second lens 20 from being too long and causing the camera module 102 to be too long, the second lens 20 is disassembled into two lenses ( For example, the first sub-lens 210 and the second sub-lens 220) or multiple lenses, a turning member is arranged between the two or more lenses, and the optical path is changed by the turning member 300, so that the plurality of lenses of the second lens 20 along different Arrangement in the same direction prevents the camera module 102 from being too long due to multiple lenses being placed in the same direction, and shortens the length of the camera module 102 , which is beneficial to the internal arrangement of the electronic device 100 .

Please continue to refer to FIG. 9 , which is a partial cross-sectional schematic diagram of the camera module 102 shown in FIG. 2 in the fourth embodiment. In the fourth embodiment provided by the present application, most of the technical solutions that are the same as those of the foregoing embodiments will not be repeated. The structure of the camera module 102 shown in this embodiment can be combined with the structure of any one of the camera modules 102 in FIGS. 3 to 9 .

As shown in FIG. 9 , the camera module 102 further includes a zoom assembly 90 . The zoom assembly 90 is located in the light turning assembly 40 . The zoom assembly 90 is used to change the focal length of the camera module 102 . After the zoom assembly 90 receives the zoom command, it can deform to change the focal length of the zoom assembly 90, thereby changing the focal length of the camera module 102.

The external light passes through the light turning assembly 40 and changes direction, passes through the zoom assembly 90 and then enters the lens; Wherein, the lens may be the above-mentioned first lens or second lens, which is not limited in the present application. Exemplarily, as shown in FIG. 9 , the zoom component 90 is located on the second exit surface 422 of the light turning component 40 , and the external light enters the second lens 20 after the direction of the light turning component 40 is changed. In the embodiment of the present application, the light from the outside passes through the light turning component 40 and the zooming component 90, which not only realizes the turning of the light, but also realizes the zooming of the camera module 102, which makes the camera module 102 more functional.

Wherein, those skilled in the art can design the position of the zoom assembly 90 to be located in the light turning assembly 40 according to the actual requirements of the camera module 102, so that the zoom assembly 90 is located in the effective range of optical path transmission. For example, in some implementations, the zoom component 90 is located on the exit surface of the light redirecting component 40 , and outside light passes through the light redirecting component 40 and then passes through the zoom component 90 . The outgoing surface of the light redirecting component 40 includes the above-mentioned first outgoing surface and the second outgoing surface. The zoom assembly 90 is located on the first exit surface and/or the second exit surface.

In other implementations, the zoom assembly 90 can also be located on the incident surface of the light turning assembly 40; or, the light turning assembly 40 is installed on both the incident surface of the light turning assembly 40 and the exit surface of the light turning assembly 40, and this application does not Not limited. Wherein, the incident surface of the light redirecting component 40 includes a first incident surface and a second incident surface. The zoom assembly 90 is located on the first incident surface and/or the second incident surface.

In the embodiment of the present application, a zoom assembly 90 capable of realizing a zoom function is integrated on the light turning assembly 40, and the camera module 102 can be The zoom of the camera module 102 is implemented to simplify the zoom design of the camera module 102 .

Please refer to FIG. 9 and FIG. 10 together, the zoom component 90 includes a piezoelectric layer 91 and a transparent deformation portion 92 . The piezoelectric layer 91 is fixed to the transparent deformation portion 92 . The piezoelectric layer 91 is deformed under the driving of the electric signal, so as to drive the transparent deformation portion 92 to deform. The piezoelectric layer 91 is provided with a light-transmitting portion 910 , and the light-transmitting portion 910 is used for light to pass through, so as to prevent the piezoelectric layer 91 from blocking the light and affecting the imaging quality of the camera module 102 . As shown in FIG. 9 , for example, the light-transmitting portion 910 is a through hole passing through the piezoelectric layer 91 . In other embodiments, the light-transmitting portion 910 can also be other transparent structures, which are not limited in the present application.

The two ends of the piezoelectric layer 91 are respectively electrically connected to the positive electrode and the negative electrode, and the positive electrode and the negative electrode are controlled by the control circuit to change the electrical signal received by the piezoelectric layer 91, thereby controlling the piezoelectric layer 91 to make the voltage The electrical layer 91 is deformed. Exemplarily, the piezoelectric layer 91 is a piezoelectric film, and the transparent deformable portion 92 is a high molecular polymer. The present application does not limit the materials of the piezoelectric layer 91 and the transparent deformation portion 92 , and those skilled in the art can select the materials of the piezoelectric layer 91 and the transparent deformation portion 92 according to actual needs.

In the embodiment of the present application, the piezoelectric layer 91 in the zoom assembly 90 is deformed when receiving an electrical signal, so as to drive the transparent deformable portion 92 to deform, and the focal length of the camera module 102 is changed, so as to realize the zoom of the camera module. .

Please refer to FIG. 9 and FIG. 10 together. The zoom assembly 90 further includes a transparent cover plate 93 . The transparent cover plate 93 is located on the side of the transparent deformable portion 92 away from the piezoelectric layer 91 and is fixed to the light turning assembly 40 . At this time, the piezoelectric layer 91 is located on the side of the transparent deformation part 92 close to the light turning component 40 , and the transparent deformation part 92 is located between the transparent cover plate 93 and the piezoelectric layer 91 . Exemplarily, the transparent cover plate 93 is a glass cover plate, so that light can pass through the transparent cover plate 93 .

In the embodiment of the present application, the transparent deformation part 92 is located between the transparent cover plate 93 and the piezoelectric layer 91 , and the space between the piezoelectric layer 91 and the transparent cover plate 93 defines the shape of the transparent deformation part 92 , and the piezoelectric layer 91 Driven by the electrical signal, the deformation occurs toward the side away from or close to the transparent deformation portion 92, and the space between the piezoelectric layer 91 and the transparent cover plate 93 changes. Since the transparent deformation portion 92 is fixed to the piezoelectric layer 91, the transparent The shape of the deformation portion 92 also changes, thereby changing the focal length of the camera module 102 .

For example, as shown in FIG. 9 , when the piezoelectric layer 91 is deformed toward the side close to the transparent deformation portion 92 , the piezoelectric layer 91 presses the transparent deformation portion 92 to change the shape of the transparent deformation portion 92 , thereby changing the camera. The focal length of the module 102 . Alternatively, when the piezoelectric layer 91 is deformed toward the side away from the transparent deformation portion 92 , the volume of the transparent deformation portion 92 in the released space of the piezoelectric layer 91 becomes larger, thereby changing the focal length of the camera module 102 .

In some embodiments, the transparent cover plate 93 and the transparent deformation portion 92 are fixedly bonded by optical glue (not shown in the figure). Optical glue, also known as glue for optical parts, is a kind of polymer substance with similar optical properties to optical parts and excellent bonding properties. It can glue two or more optical parts into optical components that can meet the requirements of optical path design; or use it to realize the gluing of high-precision optical scales, filters and other protective glass. Exemplarily, the transparent deformable portion 92 is also fixedly connected to the piezoelectric layer 91 through optical glue.

In the embodiment of the present application, the transparent cover plate 93 and the transparent deformable portion 92 are fixedly connected by optical glue, so as to prevent the zoom assembly 90 from interfering with the propagation of light, thereby improving the imaging quality of the camera module 102 .

Please refer to FIG. 9 and FIG. 11 together. FIG. 11 is a partial cross-sectional structural diagram of the light redirecting assembly 40 shown in FIG. 9 . The light turning assembly 40 is provided with a mounting slot 410 . Part or all of the zoom assembly 90 is accommodated in the installation slot 410 . The installation groove 410 is recessed from the exit surface of the light turning assembly 40 toward the interior of the light turning assembly 40 . Exemplarily, in the embodiment of the present application, the installation groove 410 is recessed from the second exit surface 422 of the light redirecting assembly 40 toward the interior of the light redirecting assembly 40 . In other embodiments, the installation groove 410 can also be recessed from the first outgoing surface of the light redirecting assembly 40 toward the interior of the light redirecting assembly 40; The installation slot 410 of the zoom assembly 90 is not limited in this application.

In the embodiment of the present application, the light turning assembly 40 is provided with a mounting slot 410 for accommodating the zoom assembly 90 . At least part of the structure of the zoom assembly 90 is multiplexed with the space of the light turning assembly 40 , and the zoom assembly 90 does not need to occupy additional space of the camera module 102 . The large space is beneficial to the miniaturization of the camera module 102 on the premise of realizing the zoom function of the camera module 102 .

In other embodiments, the mounting groove 410 can also be recessed from the incident surface of the light turning assembly 40 toward the interior of the light turning assembly 40 . Exemplarily, the installation groove 410 is recessed from the first incident surface of the light turning assembly 40 toward the inner groove of the light turning assembly 40; . The present application does not limit the zoom assembly 90 to be located on the exit surface and/or exit surface of the light turning assembly 40 .

Please continue to refer to FIG. 9 and FIG. 11 , the groove wall of the installation groove 410 includes a bottom wall 4101 and a side wall 4102 connected with the bottom wall 4101 . The side wall 4102 is provided with a stepped structure 4103 . The piezoelectric layer 91 is mounted on the stepped structure 4103 , and the piezoelectric layer 91 is spaced from the bottom wall 4101 . Exemplarily, the piezoelectric layer 91 is fixed to the stepped structure 4103 by optical glue.

In the embodiment of the present application, the groove wall of the installation groove 410 is provided with a stepped structure 4103 . When the piezoelectric layer 91 is installed on the stepped structure 4103 , the piezoelectric layer 91 is spaced from the bottom wall 4101 of the installation groove 410 , which is the piezoelectric layer 91 . The deformation of 100 provides a deformation space, that is, a zooming space is provided for the zooming of the zoom component 90 , thereby effectively realizing the zooming of the camera module 102 .

Please continue to refer to FIG. 12 , which is a schematic diagram of the light redirecting assembly 40 shown in FIG. 2 in another embodiment. Most of the technical solutions of the light turning assembly 40 provided in the present application and the light turning assembly 40 of the camera module 102 in the fourth embodiment are the same, and will not be repeated. The structure of the light turning assembly 40 shown in this embodiment can be combined with the structure of any one of the camera modules 102 in FIGS. 3 to 8 .

As shown in FIG. 12 , the piezoelectric layer 91 is located on the side of the transparent deformable portion 92 away from the light turning component 40 . That is, the piezoelectric layer 91 is located on the outer layer of the transparent deformation portion 92 . Exemplarily, the piezoelectric layer 91 and the transparent deformable portion 92 are bonded by optical glue, so as to meet the optical path design requirements of the zoom assembly 90 .

In this embodiment, the transparent deformation portion 92 is located inside the piezoelectric layer 91, and the space between the groove wall of the installation groove 410 and the piezoelectric layer 91 defines the shape of the transparent deformation portion 92. The side facing away from or close to the transparent deformation part 92 is deformed under driving, and the space between the piezoelectric layer 91 and the groove wall of the installation groove 410 changes. The shape of 92 has also changed, thereby changing the focal length of the camera module 102 .

For example, as shown in FIG. 12 , when the piezoelectric layer 91 is deformed toward the side close to the transparent deformation portion 92 , the piezoelectric layer 91 presses the transparent deformation portion 92 to change the shape of the transparent deformation portion 92 , thereby changing the camera. The focal length of the module 102 . Alternatively, when the piezoelectric layer 91 is deformed toward the side away from the transparent deformation portion 92 , the volume of the transparent deformation portion 92 in the released space of the piezoelectric layer 91 becomes larger, thereby changing the focal length of the camera module 102 .

In this embodiment, the piezoelectric layer 91 is located on the outer side of the transparent deformation portion 92 , and the positive electrode and the negative electrode are directly electrically connected to the outer piezoelectric layer 91 , and there is no need to design a space to avoid the transparent deformation portion 92 to be led out to the outside. The connection of the control circuit facilitates the extraction of the positive electrode and the negative electrode, thereby helping to reduce the design cost of the zoom assembly 90 .

Please continue to refer to FIG. 13 , which is a schematic diagram of the light redirecting assembly 40 shown in FIG. 2 in still another embodiment. Most of the technical solutions of the light turning assembly 40 provided in the present application are the same as the above-mentioned light turning assembly 40 and will not be described again. The structure of the light turning assembly 40 shown in this embodiment can be combined with the structure of any one of the camera modules 102 in FIGS. 3 to 8 .

As shown in FIG. 13 , both the incident surface and the outgoing surface of the light turning component 40 are provided with a zoom component 90 . Exemplarily, both the second incident surface 421 and the second exit surface 422 of the light turning component 40 are provided with a zoom component 90 . In other embodiments, the first incident surface and the first exit surface of the light redirecting component 40 are provided with the zoom component 90; or, the first incident surface, the second incident surface, the first exit surface and the Both the two exit surfaces are provided with zoom components 90 . This application does not limit the number of the zoom components 90 and the zoom components 90 are located on the incident surface and/or the exit surface of the light redirecting component 40 .

In the embodiment of the present application, both the incident surface and the corresponding output surface of the light turning component 40 are provided with a zoom component 90 to realize the dual zoom function of the camera module 102, which is beneficial to increase the zoom range of the camera module 102, thereby increasing the zoom range of the camera module 102. The zoom performance of the camera module 102 is further improved.

Among them, in this embodiment, the piezoelectric layer 91 is located outside the transparent deformation portion 92 as an example for description. In other embodiments, the piezoelectric layer 91 can also be located inside the transparent deformation portion 92 , which is not limited in the present application.

As shown in FIG. 13 , the light turning assembly 40 is respectively provided with two mounting grooves 410 for accommodating two zoom assemblies 90 , wherein one mounting groove 410 is recessed from the first incident surface toward the interior of the light turning assembly 40 , and the other mounting groove 410 The interior of the light turning assembly 40 is recessed from the first exit surface. In this embodiment, the two zoom assemblies 90 are accommodated in the installation grooves 410 formed by the light turning assembly 40 , so that the space occupied by the zoom assembly 90 and the space occupied by the light turning assembly 40 are multiplexed, which is beneficial to the camera module 102 of miniaturization.

The embodiments of the present application have been introduced in detail above, and specific examples are used to illustrate the principles and implementations of the present application. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application; at the same time, for Persons of ordinary skill in the art, based on the idea of the present application, may have changes in the specific implementation manner and application scope. In conclusion, the contents of this description should not be construed as a limitation on the present application.

Claims

A camera module is characterized in that it comprises a first lens, a second lens, and a light turning assembly located between the first lens and the second lens, and the light turning assembly is provided with a first lens opposite to each other. an incident surface and a second incident surface, the first incident surface collects the light facing the first incident surface, and the second incident surface collects the light facing the second incident surface;

The light redirecting component is further provided with a first exit surface and a second exit surface, the first exit surface faces the first lens, and the second exit surface faces the second lens; The light on the incident surface is emitted from the first outgoing surface and enters the first lens; the light irradiated on the second incident surface is emitted from the second outgoing surface and enters the second lens.
The camera module of claim 1, wherein the optical axis of the first lens and the optical axis of the second lens are parallel or coincident.
The camera module of claim 1, wherein the optical axis of the first lens and the optical axis of the second lens are perpendicular to each other.
The camera module according to any one of claims 1 to 3, wherein the light turning component is a prism component or a plane mirror component.
4. The camera module of claim 4, wherein the prism assembly comprises a first prism and a second prism, and the first prism comprises the first incident surface, the first exit surface and a a first reflection surface between the first incident surface and the first outgoing surface, the first incident surface and the first outgoing surface being perpendicular to each other;

The second prism includes the second incident surface, the second exit surface, and a second reflection surface connected between the second incident surface and the second exit surface, the second incident surface and the second exit surface. The second emitting surfaces are perpendicular to each other, and the first reflecting surface is fixedly attached to the second reflecting surface.
The camera module according to claim 5, wherein the camera module further comprises a zoom component, the zoom component is used to change the focal length of the camera module, and the first one of the prism components At least one surface of the incident surface, the first exit surface, the second incident surface and the second exit surface is provided with the zoom component.
6. The camera module according to claim 6, wherein the zoom component comprises a piezoelectric layer and a transparent deformation portion, the piezoelectric layer is fixedly connected to the transparent deformation portion, and the piezoelectric layer is in electrical signal Deformation occurs under the driving of the device, so as to drive the transparent deformation part to deform;

The piezoelectric layer is located on a side of the transparent deformable portion close to the light redirecting component; or, the piezoelectric layer is located on a side of the transparent deformable portion away from the light redirecting component.
7. The camera module according to claim 7, wherein the light turning assembly is provided with an installation groove, part or all of the zoom assembly is accommodated in the installation groove, and the installation groove starts from the light turning assembly. The exit surface is recessed toward the inside of the light turning assembly; or, the mounting groove is recessed toward the inside of the light turning assembly from the incident surface of the light turning assembly.
The camera module according to claim 8, wherein the groove wall of the installation groove comprises a bottom wall and a side wall connected to the bottom wall, the side wall is provided with a stepped structure, and the piezoelectric layer It is installed on the stepped structure, and the piezoelectric layer is spaced apart from the bottom wall.
The camera module according to claim 9, wherein when the piezoelectric layer is located on a side of the transparent deformable portion close to the light turning assembly, the zoom assembly further comprises a transparent cover, the The transparent cover plate is located on the side of the transparent deformable portion away from the piezoelectric layer, and is fixedly connected to the light redirecting component.
The camera module according to any one of claims 5 to 10, wherein the first reflection surface and the second reflection surface are fixedly connected by shading glue.
The camera module according to any one of claims 5 to 10, wherein the first reflection surface and/or the second reflection surface is provided with a reflection enhancement film.
The camera module according to any one of claims 5 to 10, wherein the first incident surface and the second incident surface are provided with a filter film, and the filter film can filter the light of infrared light.
The camera module according to any one of claims 5 to 10, wherein the camera module further comprises a first photosensitive element and a second photosensitive element, the first photosensitive element is located at the first lens the side away from the light turning assembly, the second photosensitive element is located on the side of the second lens away from the light turning assembly, and the light emitted from the first lens is imaged on the first photosensitive element , the light emitted from the second lens is imaged on the second photosensitive element.
The camera module according to any one of claims 5 to 10, wherein the camera module further comprises a carrier and an anti-shake assembly, and the carrier is used to fix the light steering assembly and is surrounded by a On the periphery of the light turning assembly, the anti-shake assembly is located on the side of the carrier away from the light turning assembly, and the anti-shake assembly is used to push the carrier to move.
The camera module of claim 15, wherein the camera module further comprises a rotation shaft, the rotation shaft is connected to the carrier, and the rotation shaft is used to drive the carrier to rotate by a preset angle.
The camera module according to any one of claims 6 to 10, wherein the camera module further comprises a first voice coil motor and a second voice coil motor, and the first voice coil motor is arranged around the The periphery of the first lens and the second voice coil motor are arranged around the periphery of the second lens.
An electronic device, characterized in that it comprises a casing and a camera module according to any one of claims 1-17, wherein the camera module is mounted on the casing, and the casing is provided with opposite The front surface and the back surface are arranged, the first incident surface collects the light projected on the front surface, and the second incident surface collects the light projected on the back surface.