CN210670291U - Camera module and electronic equipment - Google Patents

Abstract

The disclosure relates to a camera module and electronic equipment, and belongs to the technical field of electronic equipment. This module of making a video recording includes: the lens comprises a shell, a first lens assembly, a first prism and an image sensor; the first lens assembly and the first prism are arranged in the shell, a light inlet surface of the first lens assembly is parallel to the top surface of the shell, a light outlet surface of the first lens assembly is opposite to a first side surface of the first prism, and the image sensor is opposite to a second side surface of the first prism; a first lens assembly for optically imaging light from a scene to form a target image, the target image being projected on a first side; the first prism is used for totally reflecting incident light of the target image and projecting the reflected light of the target image on the image sensor through the second side surface; when the size of the image sensor is increased in the horizontal direction, the size of the camera module in the horizontal direction is only increased, the height of the lens module is not increased, and the limitation of the thickness of the whole electronic equipment is avoided.

Description

Camera module and electronic equipment

Technical Field

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

Background

Along with the development of electronic equipment technology, the function of the camera module in electronic equipment such as mobile phones and tablets is more and more important, for example, a user can often use the camera module to take pictures or record videos, so that the requirement of the user on the imaging quality of the camera module is higher and higher. Especially when taking a picture of a distant view, the user wants to take a picture with high resolution and low noise with an electronic device.

The imaging quality of the electronic equipment for photographing the distant view mainly depends on the optical zoom multiple of the camera module, and the larger the optical zoom multiple of the camera module is, the higher the imaging quality of the electronic equipment for photographing the distant view is. The increase of the optical zoom factor of the camera module requires the increase of the equivalent focal length, which inevitably increases the thickness of the lens module. At present, the thickness of the lens module is limited by the thickness of the whole electronic device.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a camera module and electronic equipment, and solves the problem of low imaging quality when the camera module takes a picture. The technical scheme is as follows:

according to an aspect of the embodiments of the present disclosure, there is provided a camera module including a housing, a first lens assembly, a first prism, and an image sensor;

the first lens assembly and the first prism are arranged in the shell, a light inlet surface of the first lens assembly is parallel to the top surface of the shell, a light outlet surface of the first lens assembly is opposite to a first side surface of the first prism, and the image sensor is opposite to a second side surface of the first prism;

the image sensor is arranged in the shell and is parallel to the upper surface of the shell;

the first lens assembly is used for optically imaging light from a scene to form a target image and projecting the target image on the first side surface;

the first prism is used for carrying out total reflection on the incident light of the target image incident from the first side surface and projecting the reflected light of the target image on the image sensor through the second side surface;

the image sensor is used for receiving the reflected light of the target image totally reflected by the first prism and converting the reflected light of the target image into an electric signal.

In the embodiment of the disclosure, the image sensor is arranged in the shell and is parallel to the upper surface of the shell, and the image sensor can receive the reflected light of the target image totally reflected by the first prism; when the size of the image sensor is increased in the horizontal direction, the size of the camera module in the horizontal direction is only increased, and the height of the lens module is not increased, so that the size of the image sensor is not limited by the thickness of the whole electronic equipment.

In another possible implementation manner, a first light inlet is arranged on the top surface of the shell;

the first light inlet is opposite to the light inlet surface of the first lens assembly and used for projecting light from a scenery on the light inlet surface of the first lens assembly through the first light inlet.

In another possible implementation, the first prism is a right-angle prism;

the light-emitting surface of the first lens assembly is opposite to the first right-angle surface of the first prism; the image sensor is opposite to the second right-angle surface of the first prism.

In the embodiment of the present disclosure, the incident light of the target image is not refracted from the first side surface of the right-angle prism to the inclined surface of the right-angle prism, that is, the incident angle of the incident light of the target image incident from the first side surface at the inclined surface of the first prism is the same, the incident light of the target image is totally reflected at the inclined surface of the first prism, and the reflection angle of the reflected light of the target image at the inclined surface of the first prism is also the same.

In another possible implementation manner, the camera module further includes a first driving component;

the first driving assembly is connected with the image sensor;

the first driving assembly is used for moving the image sensor in a horizontal direction when the shell shakes.

In the embodiment of the disclosure, the target image formed by the first lens assembly is totally reflected by the first prism, so that the target image is turned in the rear direction of the first prism, and thus the image sensor in the horizontal direction can normally receive the target image and convert the reflected light of the target image into an electric signal, and the lens module can realize optical anti-shake through the horizontal moving image sensor, thereby improving the imaging quality of the lens module.

In another possible implementation, the first lens assembly includes a first lens barrel and a first lens group;

the first lens group is arranged in the first lens barrel, a light inlet surface of the first lens group is parallel to the top surface of the shell, and a light outlet surface of the first lens group is opposite to the first side surface of the first prism;

the first lens barrel is used for fixing the first lens group;

the first lens group is used for optically imaging the light from the scenery to form a target image, and the target image is projected on the first side surface.

In another possible implementation manner, the camera module further includes a second lens assembly;

the light inlet surface of the second lens assembly is opposite to the light outlet surface of the first lens assembly, the light outlet surface of the second lens assembly is opposite to the first side surface of the first prism, and the optical axes of the first lens assembly and the second lens assembly are on the same straight line;

the first lens assembly and the second lens assembly are used for optically imaging light from a scene to form a target image, and the target image is projected on the first side face.

In another possible implementation, the second lens assembly includes a second lens barrel and a second lens group;

the second lens group is arranged in the second lens cone;

the light inlet surface of the second lens group is opposite to the light outlet surface of the first lens group, the light outlet surface of the second lens group is opposite to the first side surface of the first prism, and the optical axes of the first lens group and the second lens group are on the same straight line;

the second lens barrel is used for fixing the second lens group;

the first lens group and the second lens group are used for optically imaging light from a scene to form a target image, and the target image is projected on the first side face.

In the embodiment of the disclosure, the camera module realizes continuous optical zooming through the first lens assembly and the second lens assembly, so that the camera module realizes optical zooming with higher magnification, the imaging quality of the camera module when photographing a long shot is improved, and the user experience is enhanced.

In another possible implementation manner, the camera module further includes a second driving component;

the second driving component is connected with the second lens cone and used for driving the second lens cone to move.

In the embodiment of the disclosure, the movement size and speed of the second driving assembly are accurately controlled by controlling the frequency and the pulse number of the driving pulse signal, so that the movement of the lens group is accurately controlled, and the automatic control of the movement of the lens assembly is realized.

In another possible implementation manner, the camera module further includes a second prism;

the second prism is arranged at the top of the shell, the third side surface of the second prism is parallel to the lower surface of the shell, and the fourth side surface of the second prism is opposite to the light inlet surface of the first lens assembly;

the second prism is used for carrying out total reflection on light from a scene and projecting reflected light on a light inlet surface of the first lens assembly;

the first lens assembly is used for carrying out optical imaging on the reflected light to form a target image.

In another possible implementation manner, a second light inlet is arranged on the lower surface of the shell;

the first light inlet is opposite to the third side face of the second prism, and light from a scenery penetrates through the first light inlet and is projected on the third side face of the second prism.

In another possible implementation, the second prism is a right-angle prism;

the third right-angle surface of the second prism is opposite to the lower surface of the shell; and a fourth right-angle surface of the second prism is opposite to the light inlet surface of the first lens assembly.

According to another aspect of the embodiments of the present disclosure, an electronic device is provided, which includes a main body and the camera module of any one of the above embodiments;

the camera module is arranged at the top of the machine body and is parallel to the upper surface of the machine body.

In the embodiment of the disclosure, the image sensor is arranged in the shell and is parallel to the upper surface of the shell, and the image sensor can receive the reflected light of the target image totally reflected by the first prism; like this when the size of increase image sensor in the horizontal direction, only need increase the size of the module horizontal direction of making a video recording, and need not increase the thickness of lens module, consequently also can not increase electronic equipment's thickness, strengthened electronic equipment's user experience.

In another possible implementation manner, the electronic device further includes a hinge;

the rotating shaft is arranged in the machine body; the camera module is arranged at the top of the rotating shaft and is parallel to the upper surface of the machine body.

In this disclosed embodiment, to make a video recording the module setting in electronic equipment's pivot, the length of the module of making a video recording can not receive the space restriction of other functional modules such as display module and battery to the improvement that can furthest makes a video recording the length of module, increase the multiple that the module optics of making a video recording zooms.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic side view of a camera module according to an exemplary embodiment;

fig. 2 is a schematic structural diagram illustrating a camera module according to an exemplary embodiment;

fig. 3 is a schematic side view of a camera module according to an exemplary embodiment;

fig. 4 is a schematic side view of a camera module according to an exemplary embodiment;

fig. 5 is a schematic structural diagram of an electronic device according to an exemplary embodiment.

10 camera module

11 casing

12 first lens assembly

13 first prism

14 image sensor

15 first light inlet

16 second lens assembly

17 second prism

20 electronic device

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a camera module 10 according to an exemplary embodiment, where the camera module 10 includes: a housing 11, a first lens assembly 12, a first prism 13, and an image sensor 14;

the first lens assembly 12 and the first prism 13 are arranged in the housing 11, a light inlet surface of the first lens assembly 12 is parallel to the top surface of the housing 11, a light outlet surface of the first lens assembly 12 is opposite to a first side surface of the first prism 13, and the image sensor 14 is opposite to a second side surface of the first prism 13;

the image sensor 14 is arranged in the housing 11, and the image sensor 14 is parallel to the upper surface of the housing 11;

a first lens assembly 12 for optically imaging light from the scene to form a target image, the target image being projected on the first side;

a first prism 13 for totally reflecting incident light of the target image incident from the first side surface and projecting the reflected light of the target image through the second side surface onto the image sensor 14;

and an image sensor 14 for receiving the reflected light of the target image totally reflected by the first prism 13 and converting the reflected light of the target image into an electrical signal.

In the embodiment of the present disclosure, the image sensor 14 is disposed inside the housing 11 and is parallel to the upper surface of the housing 11, and the image sensor 14 may receive the reflected light of the target image totally reflected by the first prism 13; when the size of the image sensor 14 is increased in the horizontal direction, only the size of the camera module 10 in the horizontal direction needs to be increased without increasing the height of the lens module, and therefore, the size of the image sensor 14 is not limited by the thickness of the whole electronic device 20.

In one possible implementation, referring to fig. 2, the top surface of the housing 11 is provided with a first light inlet 15;

the first light inlet 15 is opposite to the light inlet surface of the first lens assembly 12, and is used for projecting the light from the scenery on the light inlet surface of the first lens assembly 12 through the first light inlet 15.

The shape of the first light inlet 15 may be a circle, or a quadrangle, such as a square; the size of the first light inlet 15 may be the same as the size of the light inlet surface of the first lens assembly 12, or may be different from the size of the first lens assembly 12. In the embodiment of the present disclosure, the size of the first light inlet 15 is not particularly limited, and may be set and changed as needed. For example, the size of the first light inlet 15 is the same as the size of the light inlet surface of the first lens assembly 12, and when the light inlet surface of the first lens assembly 12 is a circular lens with a diameter of 3mm, the first light inlet 15 is a circular light inlet with a diameter of 3 mm.

In a possible implementation manner, the top surface of the housing 11 is opposite to the top surface of the body of the electronic device 20, the body of the electronic device 20 is provided with a transparent protective shell at the first light inlet 15, and the light of the scene can be projected onto the light inlet surface of the first lens assembly 12 through the transparent protective shell. Wherein, the transparent protective shell can be made of plastic, such as optical plastic; glass, such as optical glass; or may be a transparent polymer material. In the embodiment of the present disclosure, the material of the protective case is not particularly limited, and may be set and changed as needed. For example, the protective shell is made of optical plastic. The protective housing can avoid the direct and external environment contact of first camera lens subassembly 12's lens, prevents the corruption of air pollution to first camera lens subassembly 12's lens, has prolonged the life of first camera lens subassembly 12 and whole camera lens module, also can guarantee the permeability of first camera lens subassembly 12's lens simultaneously, guarantees the definition of camera lens module formation of image.

In the embodiment of the present disclosure, the light of the scene is projected onto the light inlet surface of the first lens assembly 12 from the top surface of the body of the electronic device 20, and the unique light incident position of the camera module 10 facilitates the user to stably hold the electronic device 20 when taking a picture, thereby reducing the influence of jitter on the imaging quality.

In a possible implementation manner, a card slot matching with the first lens assembly 12 and the first prism 13 is arranged in the housing 11, and the first lens assembly 12 and the first prism 13 are fixed in the housing 11 through the card slot.

The light-emitting surface of the first lens assembly 12 is opposite to the first side surface of the first prism 13; a first lens assembly 12 for optically imaging light from a scene to form a target image, projecting incident light of the target image on a first side of a first prism 13; and a first prism 13 for totally reflecting incident light of the target image incident on the first side surface, and projecting the reflected light of the target image on the image sensor 14 through the second side surface of the first prism 13.

The material of the first prism 13 may be optical plastic, optical glass, or quartz. The first prism 13 may be a triangular prism or a polygonal prism such as a pentaprism. In the embodiment of the present disclosure, the first prism 13 is exemplified as a triangular prism. The first side of the first prism 13 may be square or rectangular in shape; for example, the first side is rectangular in shape. At this time, the size of the first side surface is larger than the size of the light-emitting surface of the first lens assembly 12, for example, when the light-emitting surface of the first lens assembly 12 is a circular lens with a diameter of 3mm, the shape of the first side surface may be a rectangle with a length of 3.5mm and a width of 3 mm. The second side of the first prism 13 may be square or rectangular in shape; for example, the second side may be rectangular in shape having a length of 3.5mm and a width of 3 mm.

The first prism 13 deflects incident light of a target image by using a characteristic of a critical angle. When the light rays are emitted from the optically dense medium to the optically sparse medium, the refraction angle is larger than the incidence angle; when the incident angle increases to a certain value, the refraction angle is equal to 90 °, and the incident angle is the critical angle, that is, when the incident angle of the incident light of the target image incident on the first side surface on the inclined surface of the first prism 13 is greater than the critical angle, the incident light of the target image can be totally reflected in the first prism 13. Wherein the magnitude of the critical angle of the first prism 13 is related to the refractive index of the first prism 13. For example, when the refractive index of the optical glass is 1.5, the critical angle of the optical glass is about 42 °. At this time, when the incident light of the target image incident on the first side surface has an incident angle of more than 42 ° at the inclined surface of the first prism 13, the incident light of the target image can be totally reflected within the first prism 13.

In one possible implementation, the first prism 13 is a triangular prism, and the light-emitting surface of the first lens assembly 12 is opposite to a first side surface of the triangular prism; the image sensor 14 faces the second side surface of the triangular prism, and at this time, incident light of the target image enters the first side surface of the triangular prism, is totally reflected at the third side surface of the triangular prism, and exits the second side surface of the triangular prism. It should be noted that the position between the light-emitting surface of the first lens assembly 12 and the first side surface of the triangular prism may be parallel or may be at a certain angle, which should satisfy the condition that the target image is totally reflected on the third side surface of the triangular prism. The image sensor 14 may be positioned parallel to or at an angle to the second side of the triangular prism.

Wherein, the included angle between the first side surface and the second side surface of the triangular prism can be 85 degrees, 88 degrees or 90 degrees. When the included angle between the first side surface and the second side surface of the triangular prism is 85 degrees, the included angle between the light-emitting surface of the first lens assembly 12 and the first side surface of the triangular prism may be set to be 5 degrees, and the image sensor 14 is parallel to the second side surface of the triangular prism; alternatively, the light-emitting surface of the first lens assembly 12 is parallel to the first side surface of the triangular prism, and the included angle between the image sensor 14 and the second side surface of the triangular prism is 5 °. In the embodiments of the present disclosure, the included angle between the first side surface and the second side surface is not particularly limited, and may be set and changed as needed.

In the embodiment of the present disclosure, the incident light of the target image is totally reflected by the first prism 13, and the direction of the incident light of the target image is changed after the reflected light of the target image passes through the first prism 13, so that the image sensor 14 in the horizontal direction can normally receive the reflected light of the target image.

In another possible implementation, the first prism 13 is a right-angle prism. The light-emitting surface of the first lens assembly 12 is opposite to the first right-angle surface of the first prism 13; the image sensor 14 is opposite to the second right-angle surface of the first prism 13. At this time, the light emitting surface of the first lens assembly 12 is parallel to the first right-angle surface of the first prism 13, and the image sensor 14 is parallel to the second right-angle surface of the first prism 13.

In the embodiment of the present disclosure, the incident light of the target image is not refracted from the first side surface of the right-angle prism to the inclined surface of the right-angle prism, that is, the incident angle of the incident light of the target image incident on the first side surface at the inclined surface of the first prism 13 is the same, the incident light of the target image is totally reflected at the inclined surface of the first prism 13, and the reflection angle of the reflected light of the target image at the inclined surface of the first prism 13 is also the same.

In another possible implementation, the first prism 13 is an isosceles right-angle prism. At this time, the incident angle of the incident light of the target image at the inclined surface of the first prism 13 is 45 °, the incident light of the target image is totally reflected at the inclined surface of the first prism 13, and the reflection angle of the reflected light of the target image at the inclined surface of the first prism 13 is also 45 °. The incident light of the target image is turned by the first prism 13 and the direction is changed by 90 °.

In the embodiment of the present disclosure, the first prism 13 totally reflects the incident light of the target image formed by the first lens assembly 12, so that the incident light of the target image is turned by 90 ° by the first prism 13, the utilization area of the image sensor 14 is increased, the image sensor 14 in the horizontal direction can normally receive the reflected light of the target image, and the optical zoom effect of the camera module 10 can be exerted to the maximum extent due to a brand new optical path design.

In another possible implementation manner, the camera module 10 further includes a first driving component; the first driving assembly is connected with the image sensor 14; a first driving assembly for moving the image sensor 14 in a horizontal direction when the housing 11 is shaken.

The first driving assembly may be a stepping motor or an electromagnetic motor. When the first driving component is an electromagnetic motor, the image sensor 14 can be fixed on a platform which can slide in parallel through an electromagnetic effect, and when shooting, the platform drives the image sensor 14 to move by utilizing the electromagnetic hysteresis.

In the embodiment of the present disclosure, the first prism 13 totally reflects the incident light of the target image formed by the first lens assembly 12, so that the incident light of the target image is turned in the rear direction of the first prism 13, and the image sensor 14 in the horizontal direction can normally receive the reflected light of the target image, and convert the reflected light of the target image into an electrical signal, and the lens module can realize optical anti-shake through the horizontal moving image sensor 14, thereby improving the imaging quality of the lens module.

In another possible implementation, the first lens assembly 12 includes a first lens barrel and a first lens group;

the first lens group is arranged in the first lens barrel, the light inlet surface of the first lens group is parallel to the top surface of the shell 11, and the light outlet surface of the first lens group is opposite to the first side surface of the first prism 13;

the first lens barrel is used for fixing the first lens group;

the first lens group is used for optically imaging the light from the scenery to form a target image, and the target image is projected on the first side face.

The first lens group is matched with the first lens barrel in shape, and the first lens barrel is used for fixing the first lens group; for example, when the first lens group is a circular lens with a diameter of 3mm, the first barrel is also a circular barrel with a diameter of 3 mm.

The first lens group is a lens group formed by combining a plurality of lenses, and the purpose of combined use is to overcome the imaging defect of a single lens and improve the optical quality of the first lens group. An optical system formed by combining a plurality of lenses can optically image light from a scene to form a target image. The first lens group can be a common photographing lens group, a wide-angle photographing lens group or a long-distance photographing lens group; the long-distance photographing lens group can photograph long-distance scenery and form a large image on an image surface. In the embodiments of the present disclosure, the type of the first lens group is not particularly limited, and may be set and changed as needed. For example, the first lens group is set as a distance type photographing lens group.

In another possible implementation, referring to fig. 3, the camera module 10 further includes a second lens assembly 16;

the light inlet surface of the second lens assembly 16 is opposite to the light outlet surface of the first lens assembly 12, the light outlet surface of the second lens assembly 16 is opposite to the first side surface of the first prism 13, and the optical axes of the first lens assembly 12 and the second lens assembly 16 are on the same straight line;

a first lens assembly 12 and a second lens assembly 16 for optically imaging light from the scene to form a target image, the target image being projected on the first side.

A clamping groove matched with the second lens assembly 16 is arranged on the shell 11, and the second lens assembly 16 is fixed in the shell 11 through the clamping groove. The second lens assembly 16 and the first lens assembly 12 may have the same size or different sizes. For example, the second lens assembly 16 is the same size as the first lens assembly 12, and when the first lens assembly is a circular lens assembly with a diameter of 3mm, the second lens assembly is also a circular lens assembly with a diameter of 3 mm. In the embodiment of the present disclosure, the shape of the second lens component is not particularly limited, and may be set and changed as needed.

The light inlet surface of the second lens assembly 16 is opposite to the light outlet surface of the first lens assembly 12, the light outlet surface of the second lens assembly 16 is opposite to the first side surface of the first prism 13, the optical axes of the first lens assembly 12 and the second lens assembly 16 are on the same straight line, and the camera module 10 can perform continuous zooming by combining the first lens assembly 12 and the second lens assembly 16.

In another possible implementation, the second lens assembly 16 includes a second lens barrel and a second lens group;

the second lens group is arranged in the second lens cone;

the light inlet surface of the second lens group is opposite to the light outlet surface of the first lens group, the light outlet surface of the second lens group is opposite to the first side surface of the first prism 13, and the optical axes of the first lens group and the second lens group are on the same straight line;

the second lens cone is used for fixing the second lens group;

the first lens group and the second lens group are used for optically imaging the light from the scenery to form a target image, and the target image is projected on the first side.

The second lens group is matched with the second lens barrel in shape, and the second lens barrel is used for fixing the second lens group; for example, when the second lens group is a circular lens with a diameter of 3mm, the second barrel is also a circular barrel with a diameter of 3 mm.

The second lens group is a lens group formed by combining a plurality of lenses, and the purpose of combined use is to overcome the imaging defect of a single lens and improve the optical quality of the second lens group. The optical system formed by the combination of the plurality of lenses can further image the target image formed by the first lens group to form a new target image. When the first lens group is a telephoto lens group, the second lens group is also a telephoto lens group, and optical axes of the first and second lens groups are on the same straight line, and continuous zooming can be achieved by moving the second lens group.

In the embodiment of the present disclosure, the camera module 10 realizes continuous optical zooming through the first lens assembly 12 and the second lens assembly 16, so that the camera module 10 realizes optical zooming with higher magnification, the imaging quality of the camera module 10 when taking a picture of a long-distance view is improved, and the user experience is enhanced.

In another possible implementation manner, the camera module 10 further includes a second driving component; the second driving component is connected with the second lens cone and used for driving the second lens cone to move.

Wherein the second drive assembly may be a stepper motor; the stepping motor is connected with the second lens barrel and used for driving the second lens barrel to move. When the second lens barrel moves, the second lens group also moves correspondingly, and along with the movement of the second lens group, the focal length of an optical system formed by the first lens group and the second lens group changes gradually, so that continuous zooming is realized.

When the step driver receives a pulse signal, it drives the step motor to rotate by a fixed angle in a set direction, called "step angle", and the rotation is performed by one step at the fixed angle. The angular displacement can be controlled by controlling the number of pulses, so that the aim of accurate positioning is fulfilled; meanwhile, the rotating speed and the rotating acceleration of the motor can be controlled by controlling the pulse frequency, so that the aim of speed regulation is fulfilled.

In another possible implementation manner, a stepping motor is connected with the first lens barrel and used for driving the first lens barrel to move. The first lens group is correspondingly moved when the first lens barrel moves, and along with the movement of the first lens group, the focal length of an optical system formed by the first lens group and the second lens group gradually changes, so that continuous zooming is realized.

In the embodiment of the disclosure, the movement size and speed of the second driving assembly are accurately controlled by controlling the frequency and the pulse number of the driving pulse signal, so that the movement of the lens group is accurately controlled, and the automatic control of the movement of the lens assembly is realized.

In another possible implementation, referring to fig. 4, the camera module 10 further includes a second prism 17;

the second prism 17 is arranged at the top of the housing 11, a third side surface of the second prism 17 is parallel to the lower surface of the housing 11, and a fourth side surface of the second prism 17 is opposite to the light inlet surface of the first lens assembly 12; a second prism 17 for totally reflecting light from the subject and projecting the reflected light onto the light-entering surface of the first lens assembly 12; and the first lens assembly 12 is used for optically imaging the reflected light to form a target image.

A clamping groove matched with the second prism 17 is formed in the top of the shell 11, and the second prism 17 is fixed in the shell 11 through the clamping groove. In another possible realisation, the second prism 17 is a right-angled prism; the third right-angle surface of the second prism 17 is opposite to the lower surface of the shell 11; the fourth right-angle surface of the second prism 17 is opposite to the light inlet surface of the first lens assembly 12. At this time, the light from the subject is projected onto the third side surface through the light entrance, and the incident angle and the reflection angle when the total reflection occurs at the inclined surface of the second prism 17 are the same.

In another possible implementation, the second prism 17 is an isosceles right-angle prism. At this time, the light from the subject is projected onto the third side surface through the light entrance, and the incident angle when the total reflection occurs at the inclined surface of the second prism 17 is 45 ° as well, and the reflection angle is 45 ° as well. Light from the scene is redirected by 90 degrees by the second prism 17 and is projected onto the light-entering face of the lens assembly.

In another possible implementation manner, the lower surface of the housing 11 is provided with a second light inlet;

the second light inlet is opposite to the third side of the second prism 17, and light from the scene is projected on the third side of the second prism 17 through the second light inlet.

In a possible implementation manner, the lower surface of the housing 11 is opposite to the lower surface of the body of the electronic device 20, the body of the electronic device 20 is provided with a transparent protective shell at the second light inlet, and the light of the scenery can be projected onto the third side surface of the second prism 17 through the transparent protective shell.

In the embodiment of the present disclosure, the image sensor 14 is configured to receive the reflected light of the target image totally reflected by the first prism 13 and convert the reflected light of the target image into an electrical signal. The image sensor 14 converts the reflected light on the light-sensitive surface of the image sensor 14 into an electrical signal by using the photoelectric conversion function of the photoelectric device.

In one possible implementation, the image sensor 14 is a CMOS (Complementary Metal oxide semiconductor) image sensor 14; the CMOS image sensor 14 is a semiconductor made of two elements, i.e., silicon and germanium, and the basic functions are realized by negatively and positively charged transistors on the CMOS image sensor 14, and the currents generated by the two complementary effects can be recorded and interpreted as images by the processing chip. In another possible implementation, the image sensor 14 is a CCD (Charge Coupled Device) image sensor 14, and the CCD image sensor 14 may directly convert an optical signal into an analog current signal, and the current signal is amplified and analog-to-digital converted to obtain, store, transmit, process, and reproduce an image.

Fig. 5 is a schematic structural diagram of an electronic device 20 according to an exemplary embodiment, where the electronic device 20 includes: a body and a camera module 10 of any one of the above;

the camera module 10 is disposed on the top of the main body and parallel to the upper surface of the main body.

In the embodiment of the present disclosure, the image sensor 14 is disposed inside the housing 11 and is parallel to the upper surface of the housing 11, and the image sensor 14 may receive the reflected light of the target image totally reflected by the first prism 13; when the size of the image sensor 14 is increased in the horizontal direction, only the size of the camera module 10 in the horizontal direction needs to be increased, and the thickness of the lens module does not need to be increased, so that the thickness of the electronic device 20 is not increased, and the user experience of the electronic device 20 is enhanced.

In another possible implementation, the electronic device 20 further includes a hinge; the rotating shaft is arranged in the machine body; the camera module 10 is disposed on the top of the rotating shaft and parallel to the upper surface of the main body.

When the electronic device 20 is a foldable electronic device 20, besides the hinge of the foldable electronic device 20 can realize the functions of unfolding and folding the foldable electronic device 20, other functional modules of the foldable electronic device 20 can be placed in the space inside the hinge, for example, a charging connector of the foldable electronic device 20 and the camera module 10 of the foldable electronic device 20 can be disposed inside the hinge.

In the embodiment of the present disclosure, the camera module 10 is disposed in the rotating shaft of the electronic device 20, and the length of the camera module 10 is not limited by the space of other functional modules such as the display module and the battery, so as to improve the length of the camera module 10 to the maximum extent and increase the optical zoom multiple of the camera module 10.

All the above optional technical solutions may be combined arbitrarily to form the optional embodiments of the present disclosure, and are not described herein again.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (13)

1. A camera module is characterized by comprising a shell, a first lens assembly, a first prism and an image sensor;

the first lens assembly and the first prism are arranged in the shell, a light inlet surface of the first lens assembly is parallel to the top surface of the shell, a light outlet surface of the first lens assembly is opposite to a first side surface of the first prism, and the image sensor is opposite to a second side surface of the first prism;

the image sensor is arranged in the shell and is parallel to the upper surface of the shell;

the first lens assembly is used for optically imaging light from a scene to form a target image and projecting the target image on the first side surface;

the first prism is used for carrying out total reflection on the incident light of the target image incident from the first side surface and projecting the reflected light of the target image on the image sensor through the second side surface;

the image sensor is used for receiving the reflected light of the target image totally reflected by the first prism and converting the reflected light of the target image into an electric signal.

2. The camera module according to claim 1, wherein the top surface of the housing is provided with a first light inlet;

the first light inlet is opposite to the light inlet surface of the first lens assembly and used for projecting light from a scenery on the light inlet surface of the first lens assembly through the first light inlet.

3. The camera module of claim 1, wherein the first prism is a right angle prism;

the light-emitting surface of the first lens assembly is opposite to the first right-angle surface of the first prism; the image sensor is opposite to the second right-angle surface of the first prism.

4. The camera module of claim 1, further comprising a first drive assembly;

the first driving assembly is connected with the image sensor;

the first driving assembly is used for moving the image sensor in a horizontal direction when the shell shakes.

5. The camera module of claim 1, wherein the first lens assembly includes a first barrel and a first lens group;

the first lens group is arranged in the first lens barrel, a light inlet surface of the first lens group is parallel to the top surface of the shell, and a light outlet surface of the first lens group is opposite to the first side surface of the first prism;

the first lens barrel is used for fixing the first lens group;

the first lens group is used for optically imaging the light from the scenery to form a target image, and the target image is projected on the first side surface.

6. The camera module of claim 1, further comprising a second lens assembly;

the light inlet surface of the second lens assembly is opposite to the light outlet surface of the first lens assembly, the light outlet surface of the second lens assembly is opposite to the first side surface of the first prism, and the optical axes of the first lens assembly and the second lens assembly are on the same straight line;

the first lens assembly and the second lens assembly are used for optically imaging light from a scene to form a target image, and the target image is projected on the first side face.

7. The camera module of claim 6, wherein the second lens assembly includes a second barrel and a second lens group;

the second lens group is arranged in the second lens cone;

the light inlet surface of the second lens group is opposite to the light outlet surface of the first lens group, the light outlet surface of the second lens group is opposite to the first side surface of the first prism, and the optical axes of the first lens group and the second lens group are on the same straight line;

the second lens barrel is used for fixing the second lens group;

the first lens group and the second lens group are used for optically imaging light from a scene to form a target image, and the target image is projected on the first side face.

8. The camera module of claim 7, further comprising a second drive assembly;

the second driving component is connected with the second lens cone and used for driving the second lens cone to move.

9. The camera module of claim 1, further comprising a second prism;

the second prism is arranged at the top of the shell, the third side surface of the second prism is parallel to the lower surface of the shell, and the fourth side surface of the second prism is opposite to the light inlet surface of the first lens assembly;

the second prism is used for carrying out total reflection on light from a scene and projecting reflected light on a light inlet surface of the first lens assembly;

the first lens assembly is used for carrying out optical imaging on the reflected light to form a target image.

10. The camera module according to claim 9, wherein a second light inlet is provided on a lower surface of the housing;

the second light inlet is opposite to the third side face of the second prism and used for projecting light from a scenery on the third side face of the second prism through the second light inlet.

11. The camera module of claim 9, wherein the second prism is a right angle prism;

the third right-angle surface of the second prism is opposite to the lower surface of the shell; and a fourth right-angle surface of the second prism is opposite to the light inlet surface of the first lens assembly.

12. An electronic device, characterized in that the electronic device comprises a body and a camera module according to any one of claims 1-11;

the camera module is arranged at the top of the machine body and is parallel to the upper surface of the machine body.

13. The electronic device of claim 12, further comprising a hinge;

the rotating shaft is arranged in the machine body; the camera module is arranged at the top of the rotating shaft and is parallel to the upper surface of the machine body.

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