Camera module and electronic equipment

Abstract

The invention discloses a camera module and electronic equipment, and belongs to the technical field of electronic equipment. The camera module comprises a lens assembly, the lens assembly comprises at least three lenses, the at least three lenses are arranged at intervals along a first direction, the lenses comprise a first lens, and the first lens has positive focal power; the first reflection assembly is arranged on one side of the lens assembly in the first direction, the first reflection assembly is used for reflecting incident light rays incident in the second direction to the lens assembly, and the second direction intersects with the first direction; the second reflection assembly is arranged on the other side, away from the first reflection assembly, of the lens assembly in the first direction, the second reflection assembly comprises at least one pentagonal prism, and the pentagonal prism is used for turning incident light rays from the lens assembly; and the photosensitive chip is arranged on one side of the second reflection assembly, and the photosensitive chip is used for receiving the incident light from the second reflection assembly so as to form an image.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, and particularly relates to a camera module and an electronic device. Background Art

[0002] With the continuous development of electronic devices, the functions of electronic devices are becoming more and more excellent. At the same time, the functions of the camera modules of electronic devices are also becoming more and more excellent. For example, in order to obtain better shooting effects, a telephoto camera module is usually installed in an electronic device.

[0003] In related technologies, the equivalent focal length of a telephoto camera module is usually 3 - 5 times that of the main camera lens. It can be seen that the equivalent focal length of the current telephoto camera module is still short, and the magnification is also low, resulting in weak long-distance shooting ability of the electronic device. If the length of the telephoto camera module is increased to improve the long-distance shooting ability of the electronic device, it will cause the telephoto camera module to occupy a large space, affecting the space utilization rate of the electronic device. Summary of the Invention

[0004] This application discloses a camera module and an electronic device to solve or at least partially solve the problem in the prior art that the equivalent focal length of the telephoto camera module is still short, and the magnification is also low, resulting in weak long-distance shooting ability of the electronic device.

[0005] To solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, this application discloses a camera module. The camera module includes a lens assembly. The lens assembly includes at least three lenses. The at least three lenses are spaced along a first direction. The lens includes a first lens, and the first lens has a positive optical power. A first reflection assembly is disposed on one side of the lens assembly along the first direction. The first reflection assembly is configured to reflect incident light entering along a second direction to the lens assembly. The second direction intersects the first direction. A second reflection assembly is disposed on the other side of the lens assembly away from the first reflection assembly along the first direction. The second reflection assembly includes at least one pentaprism. The pentaprism is configured to deflect incident light from the lens assembly. A photosensitive chip is disposed on one side of the second reflection assembly. The photosensitive chip is configured to receive the incident light from the second reflection assembly to form an image.

[0007] In a second aspect, this application further discloses an electronic device. The electronic device includes an electronic device body and the camera module described in the first aspect. The camera module is connected to the electronic device body.

[0008] Embodiments of the present application disclose a camera module and an electronic device. The camera module includes a lens assembly. The lens assembly includes at least three lenses. The at least three lenses are arranged at intervals along a first direction. The lens includes a first lens which has a positive optical power. A first reflection component is arranged on one side of the lens assembly along the first direction. The first reflection component is configured to reflect incident light entering along a second direction to the lens assembly. The second direction intersects the first direction. A second reflection component is arranged on the other side of the lens assembly away from the first reflection component along the first direction. The second reflection component includes at least one pentaprism. The pentaprism is configured to deflect incident light from the lens assembly. A photosensitive chip is arranged on one side of the second reflection component. The photosensitive chip is configured to receive the incident light from the second reflection component to form an image. The camera module disclosed in the present application includes a first reflection component, a lens assembly, and a second reflection component arranged in sequence along the first direction, and a photosensitive chip arranged on one side of the second reflection component. The incident light entering along the second direction is reflected to the lens assembly by the first reflection component. The lens assembly includes at least three lenses. The at least three lenses are arranged at intervals along the first direction. The incident light can pass through the lenses and enter the second reflection component. The second reflection component includes at least one pentaprism. The incident light is deflected by the pentaprism so that the incident light can be reflected to the photosensitive chip to form an image. That is to say, the pentaprism can deflect the incident light so that the incident light enters the photosensitive chip, thereby reducing the length of the camera module and improving the space utilization rate of the electronic device.

[0009] Further, the lens assembly in the present application includes a first lens which has a positive optical power. The setting of the first lens helps to improve the equivalent focal length of the camera module, making the long-distance shooting ability of the camera module stronger.

[0010] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0011] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0012] Figure 1 Shows a top view of the camera module described in the embodiments of the present application Figure 1 ;

[0013] Figure 2 Indicates Figure 1 A cross-sectional view of

[0014] Figure 3 Shows the top view of the camera module described in the embodiments of the present application Figure 2 ;

[0015] Figure 4 Indicates Figure 3 A cross-sectional view of;

[0016] Figure 5 Shows the top view of the camera module described in the embodiments of the present application Figure 3 ;

[0017] Figure 6 Indicates Figure 5 A cross-sectional view of;

[0018] Figure 7 Shows the top view of the camera module described in the embodiments of the present application Figure 4 ;

[0019] Figure 8 Indicates Figure 7 A cross-sectional view of;

[0020] Figure 9 Shows the top view of the camera module described in the embodiments of the present application Figure 5 ;

[0021] Figure 10 Indicates Figure 9 A cross-sectional view of;

[0022] Figure 11 Shows the top view of the camera module described in the embodiments of the present application Figure 6 ;

[0023] Figure 12 Indicates Figure 11 A cross-sectional view of;

[0024] Figure 13 Shows the top view of the camera module described in the embodiments of the present application Figure 7 ;

[0025] Figure 14 Indicates Figure 13 A cross-sectional view of;

[0026] Figure 15 Indicates the axial chromatic aberration of the camera module described in the embodiments of the present application Figure 1 ;

[0027] Figure 16 Indicates the defocus modulation transfer function of the camera module described in the embodiments of the present application Figure 1 ;

[0028] Figure 17 Indicates the axial chromatic aberration of the camera module described in the embodiments of the present application Figure 2 ;

[0029] Figure 18 Represents the defocus modulation transfer function of the camera module described in the embodiments of the present application Figure 2 ;

[0030] Figure 19 Represents the axial chromatic aberration of the camera module described in the embodiments of the present application Figure 3 ;

[0031] Figure 20 Represents the defocus modulation transfer function of the camera module described in the embodiments of the present application Figure 3 ;

[0032] Figure 21 Represents the axial chromatic aberration of the camera module described in the embodiments of the present application Figure 4 ;

[0033] Figure 22 Represents the defocus modulation transfer function of the camera module described in the embodiments of the present application Figure 4 .

[0034] Reference numerals:

[0035] 10: First reflection component; 11: First reflection surface; 12: First prism; 13: Fourth lens; 14: Second right-angle prism

[0036] 20: Lens assembly; 21: First lens; 22: Second lens; 23: Third lens

[0037] 30: Second reflection component; 31: Pentagonal prism; 311: First side; 312: Second side; 313: First pentagonal prism; 314: Second pentagonal prism; 32: First right-angle prism; 321: Second reflection surface; 322: Third side; 323: Fourth side

[0038] 40: Photosensitive chip

[0039] 50: Filter

[0040] X: First direction; Y: Second direction Detailed implementation manners

[0041] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application

[0042] The terms "first" and "second" in the description and claims of this application may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0044] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0045] Refer to Figure 1 , which shows a top view of the camera module described in the embodiment of this application Figure 1 ; Refer to Figure 2 , which shows a cross-sectional view of Figure 1 ; Refer to Figure 3 , which shows a top view of the camera module described in the embodiment of this application Figure 2 ; Refer to Figure 4 , which shows a cross-sectional view of Figure 3 ; Refer to Figure 5 , which shows a top view of the camera module described in the embodiment of this application Figure 3 ; Refer to Figure 6 , which shows a cross-sectional view of Figure 5 ; Refer to Figure 7 , which shows a top view of the camera module described in the embodiment of this application Figure 4 ; Refer to Figure 8 , which shows a cross-sectional view of Figure 7 ; Refer to Figure 9 , which shows a top view of the camera module described in the embodiment of this applicationFigure 5 ; Refer to Figure 10 , which shows a Figure 9 cross-sectional view; Refer to Figure 11 , which shows a top view of the camera module described in the embodiment of the present application Figure 6 ; Refer to Figure 12 , which shows a Figure 11 cross-sectional view; Refer to Figure 13 , which shows a top view of the camera module described in the embodiment of the present application Figure 7 ; Refer to Figure 14 , which shows a Figure 13 cross-sectional view;

[0046] As Figures 1 to 14 shown, the embodiment of the present application discloses a camera module. The camera module includes a lens assembly 20, the lens assembly 20 includes at least three lenses, the at least three lenses are arranged at intervals along a first direction X, the lens includes a first lens 21, and the first lens 21 has a positive optical power; a first reflection assembly 10, along the first direction X, the first reflection assembly 10 is arranged on one side of the lens assembly 20, and the first reflection assembly 10 is used to reflect incident light incident along a second direction Y to the lens assembly 20; a second reflection assembly 30, along the first direction X, the second reflection assembly 30 is arranged on the other side of the lens assembly 20 away from the first reflection assembly 10, the second reflection assembly 30 includes at least one pentaprism 31, and the pentaprism 31 is used to deflect incident light from the lens assembly 20; an image sensor chip 40, the image sensor chip 40 is arranged on one side of the second reflection assembly 30, and the image sensor chip 40 is used to receive the incident light from the second reflection assembly 30 to form an image.

[0047] The embodiment of the present application discloses a camera module. The camera module is installed in an electronic device to enable the electronic device to have a shooting function. The camera module disclosed in the embodiment of the present application has a small length, which helps to reduce the space occupied by the camera module in the electronic device and improve the space utilization rate of the electronic device. Further, the camera module has a large field of view angle, which can improve the long-distance shooting ability of the electronic device and make the long-distance images captured by the electronic device clearer.

[0048] As Figures 1 to 14 shown, the camera module disclosed in the embodiment of the present application includes a first reflection assembly 10, a lens assembly 20, a second reflection assembly 30, and an image sensor chip 40. Among them, the first reflection assembly 10, the lens assembly 20, and the second reflection assembly 30 are arranged in sequence along the first direction X. It can be understood that along the first direction X, the first reflection assembly 10 is arranged on one side of the lens assembly 20, and the second reflection assembly 30 is arranged on the other side of the lens assembly 20 away from the first reflection assembly 10.

[0049] Among them, the first reflection component 10 can reflect the incident light entering along the second direction Y to the lens component 20. Exemplarily, as Figure 2 , Figure 4 , Figure 6 , Figure 8 , Figure 10 , Figure 12 and Figure 14 shown, the first reflection component 10 in the embodiment of the present application has a first reflection surface 11, and the first reflection surface 11 intersects with the first direction X. The incident light can enter the first reflection component 10 along the second direction Y, be reflected by the first reflection surface 11, exit the first reflection component 10 along the first direction X, and enter the lens component 20.

[0050] There is a first included angle between the first reflection surface 11 in the embodiment of the present application and the first direction X. The first included angle can be 135 degrees, the first included angle can be 140, and the first included angle can also be 130 degrees. In the embodiment of the present application, no excessive limitation is imposed on the specific degree of the first included angle. In actual applications, those skilled in the art can set it as needed.

[0051] In the embodiment of the present application, by folding the optical path through the first reflection component 10, after the incident light enters the first reflection component 10 along the second direction Y, it can be folded by the first reflection surface 11 and then exit the first reflection component 10 along the first direction X. The first reflection component 10 in the embodiment of the present application can also form an anti-shake component with mechanical structures such as a motor to reduce the anti-shake sensitivity of the camera module and improve the reliability and stability of the camera module.

[0052] It should be noted that the second direction Y in the embodiment of the present application intersects with the first direction X. Hereinafter, taking the second direction Y perpendicular to the first direction X as an example, relevant descriptions of the embodiment of the present application will be given.

[0053] As Figures 1 to 14 shown, the lens component 20 disclosed in the embodiment of the present application includes at least three lenses, and the at least three lenses are arranged at intervals along the first direction X in the lens component 20.

[0054] It should be noted that the lenses in the embodiment of the present application are all aspherical lenses. An aspherical lens refers to a lens whose surface curvature is not a spherical surface but a surface defined by a higher-order polynomial. By setting the lens as an aspherical lens, the optical performance of the lens can be flexibly optimized by adjusting the higher-order terms, a more compact design of the lens component 20 can be achieved, the field of view angle of the camera module can be increased, the long-distance shooting ability of the electronic device can be improved, and the long-distance images captured by the electronic device can be clearer.

[0055] Exemplarily, the lens in the embodiment of the present application can be an even aspherical lens, and its aspherical surface satisfies the following formula:

[0056]

[0057] Among them, the parameter c = 1 / R, that is, the curvature corresponding to the radius; r is the perpendicular distance from a point on the optical surface to the optical axis; z represents the sagitta of the point along the first direction X; k is the conic coefficient of the surface; and Ai represents the aspheric coefficient of the i-th order.

[0058] Of course, the above are only individual examples of the specific structure of the lens in the embodiments of the present application, and do not limit the present application. In actual applications, those skilled in the art can select appropriate lenses according to needs and apply them to the camera module disclosed in the embodiments of the present application.

[0059] Such as Figures 1 to 14 As shown, the lens in the embodiments of the present application includes a first lens 21, and the first lens 21 has a positive optical power. That is to say, the first lens 21 is a convex lens. Along the second direction Y, the middle part of the first lens 21 is thicker and the edge part is thinner. Exemplarily, the first lens 21 can be a biconvex lens, the first lens 21 can be a plano-convex lens, and the first lens 21 can also be a meniscus lens. In the embodiments of the present application, no excessive restrictions are imposed on the specific structure of the first lens 21. In actual applications, those skilled in the art can select according to needs.

[0060] In the embodiments of the present application, by setting the first lens 21 to have a positive optical power, the incident light is converged by the first lens 21, thereby increasing the field of view angle of the lens assembly 20 and improving the long-distance shooting ability of the electronic device.

[0061] Among them, the field of view angle refers to the angle formed by two edges of the maximum range through which the image of the object to be photographed can pass through the lens assembly 20 with the lens assembly 20 of the camera module as the vertex, and is called the field of view angle. The size of the field of view angle determines the viewing range of the lens assembly 20. The larger the field of view angle, the larger the viewing range.

[0062] The photosensitive chip 40 in the embodiments of the present application is disposed on one side of the second reflection component 30. Exemplarily, as Figures 7 to 10 shown, the photosensitive chip 40 and the lens assembly 20 are disposed on the same side of the second reflection component 30, and the lens assembly 20 and the photosensitive chip 40 are spaced apart along the second direction Y. Or, as Figures 1 to 6 and as Figures 11 to 14 shown, the photosensitive chip 40 is spaced apart from the second reflection component 30 along the second direction Y.

[0063] The second reflection component 30 in the embodiments of the present application includes at least one pentaprism 31. The pentaprism 31 can deflect the incident light from the lens assembly 20 so that the incident light can be reflected to the photosensitive chip 40, thereby forming an image on the photosensitive chip 40.

[0064] Exemplarily, the second reflection component 30 in the embodiments of the present application may include only one pentagonal prism 31. The second reflection component 30 may include two pentagonal prisms 31 arranged at intervals along the second direction Y. The second reflection component 30 may also include one pentagonal prism 31 and one right-angle prism arranged at intervals along the second direction Y. In the embodiments of the present application, no excessive limitation is imposed on the specific structure of the second reflection component 30. In actual applications, those skilled in the art can set it as needed.

[0065] It should be noted that the pentagonal prism 31 in the embodiments of the present application refers to a prism with a pentagonal cross-section, and the pentagonal prism 31 includes two reflection surfaces. After the incident light enters the pentagonal prism 31, the pentagonal prism can deflect the incident light by 90 degrees, or approximately 90 degrees.

[0066] The camera module disclosed in the present application includes a first reflection component 10, a lens component 20, and a second reflection component 30 arranged in sequence along the first direction X, and a photosensitive chip 40 arranged on one side of the second reflection component 30. The incident light entering along the second direction Y is reflected to the lens component 20 by the first reflection component 10. The lens component 20 includes at least three lenses, and the at least three lenses are arranged at intervals along the first direction X. The incident light can pass through the lenses and enter the second reflection component 30. The second reflection component 30 includes at least one pentagonal prism 31. The incident light is deflected by the pentagonal prism 31 so that the incident light can be reflected to the photosensitive chip 40 to form an image. That is to say, the pentagonal prism 31 can deflect the incident light so that the incident light enters the photosensitive chip 40, thereby reducing the length of the camera module and improving the space utilization rate of the electronic device. Further, the lens component 20 in the present application includes a first lens 21, and the first lens 21 has a positive optical power. The equivalent focal length of the camera module is increased by the first lens 21, making the long-distance shooting ability of the camera module stronger.

[0067] In some embodiments, as Figures 1 to 14 shown, the pentagonal prism 31 includes a first side surface 311 and a second side surface 312 connected to the first side surface 311. The first side surface 311 extends along the second direction Y, and the second side surface 312 extends along the first direction X. The second direction Y intersects the first direction X; one of the first side surface 311 and the second side surface 312 is the incident surface of the pentagonal prism 31, and the other is the exit surface of the pentagonal prism 31.

[0068] In the embodiment of the present application, the second reflection component 30 includes at least one pentaprism 31. The pentaprism 31 includes a first side surface 311 extending along the second direction Y and a second side surface 312 extending along the first direction X. The second side surface 312 is connected to the first side surface 311, and the second direction Y intersects the first direction X. In some embodiments, the second direction Y is perpendicular to the first direction X, or the second direction Y is approximately perpendicular to the first direction X.

[0069] Wherein, one of the first side surface 311 and the second side surface 312 is the incident surface of the pentaprism 31, and the other is the exit surface of the pentaprism 31. That is to say, the incident light can enter the pentaprism 31 from one of the first side surface 311 and the second side surface 312, be refracted twice inside the pentaprism 31, and then exit the pentaprism 31 from the other of the first side surface 311 and the second side surface 312.

[0070] In the embodiment of the present application, by setting the pentaprism 31 to include a first side surface 311 extending along the second direction Y and a second side surface 312 extending along the first direction X, the second side surface 312 is connected to the first side surface 311. So that the incident light can enter the pentaprism 31 from one of the first side surface 311 and the second side surface 312 and exit the pentaprism 31 from the other of the first side surface 311 and the second side surface 312. The incident light is refracted by 90 degrees, or approximately 90 degrees, inside the pentaprism 31, thereby reducing the length of the camera module and improving the space utilization rate of the electronic device.

[0071] In some embodiments, as Figures 1 to 6 shown, along the first direction X, the first side surface 311 of the pentaprism 31 is disposed opposite to the lens assembly 20; along the second direction Y, the photosensitive chip 40 is disposed opposite to the second side surface 312.

[0072] As Figures 1 to 6 shown, in the case where the second reflection component 30 includes only one pentaprism 31, along the first direction X, the first side surface 311 of the pentaprism 31 is disposed opposite to the lens assembly 20, so that the incident light passing through the lens assembly 20 can enter the pentaprism 31 from the first side surface 311. After being refracted twice inside the pentaprism 31, the incident light is refracted by 90 degrees (or approximately 90 degrees) and then exits from the second side surface 312. Along the second direction Y, the photosensitive chip 40 is disposed opposite to the second side surface 312. After the incident light exits the second side surface 312, it can reach the photosensitive chip 40 and form an image on the photosensitive chip 40.

[0073] In the implementation of this application, when the second reflection component 30 includes only one pentagonal prism 31, the first side surface 311 of the pentagonal prism 31 is spaced apart from the lens assembly 20 in the first direction X, and the second side surface 312 of the pentagonal prism 31 is disposed opposite to the photosensitive chip 40 in the second direction Y. So that the incident light can enter the pentagonal prism 31 from the first side surface 311 and exit the pentagonal prism 31 from the second side surface 312. The incident light can be deflected by 90 degrees (or approximately 90 degrees) within the pentagonal prism 31, thereby reducing the length of the camera module and improving the space utilization rate of the electronic device.

[0074] In some embodiments, as Figures 7 to 10 shown, the second reflection component 30 further includes a first right-angled prism 32. The first right-angled prism 32 is disposed on one side of the pentagonal prism 31 along the second direction Y. The first right-angled prism 32 has a second reflection surface 321, and the second reflection surface 321 intersects with the first direction X. Along the first direction X, one of the pentagonal prism 31 and the first right-angled prism 32 is disposed on the other side of the lens assembly 20 away from the first reflection component 10. One of the pentagonal prism 31 and the first right-angled prism 32 is configured to receive the incident light from the lens assembly 20 and reflect the incident light to the other one of the pentagonal prism 31 and the first right-angled prism 32. The other one of the pentagonal prism 31 and the first right-angled prism 32 receives the incident light and reflects the incident light to the photosensitive chip 40 to form an image.

[0075] As Figures 7 to 10 shown, the second reflection component 30 in the embodiment of this application may include a pentagonal prism 31 and a first right-angled prism 32. The pentagonal prism 31 and the first right-angled prism 32 are spaced apart along the second direction Y. The first right-angled prism 32 has a second reflection surface 321, and the second reflection surface 321 intersects with the first direction X. The incident light enters the first right-angled prism 32 and is reflected by the second reflection surface 321. After that, the incident light is deflected by 90 degrees (or approximately 90 degrees) and exits the first right-angled prism 32.

[0076] As Figure 7 and Figure 8 shown, the first right-angled prism 32 is disposed on the other side of the lens assembly 20 away from the first reflection component 10 along the first direction X, and the pentagonal prism 31 is disposed on one side of the first right-angled prism 32 along the second direction Y. The incident light emitted from the lens assembly 20 enters the first right-angled prism 32 along the first direction X. After being deflected by the second reflection surface 321, the incident light exits the first right-angled prism 32 along the second direction Y. Then it enters the pentagonal prism 31 along the second direction Y. After being deflected by 90 degrees (or approximately 90 degrees) by the pentagonal prism 31, it then enters the photosensitive chip 40 along the first direction X to form an image on the photosensitive chip 40.

[0077] As Figure 9 andFigure 10 As shown in the figure, the pentagonal prism 31 is disposed on the other side of the lens assembly 20 away from the first reflecting assembly 10 along the first direction X, and the first right-angled prism 32 is disposed on one side of the pentagonal prism 31 along the second direction Y. The incident light emitted from the lens assembly 20 enters the pentagonal prism 31 along the first direction X. After being refracted by the pentagonal prism 31, the incident light exits the pentagonal prism 31 along the second direction Y. Then it enters the first right-angled prism 32 along the second direction Y. After being refracted by 90 degrees (or approximately 90 degrees) by the first right-angled prism 32, it then enters the photosensitive chip 40 along the first direction X, and an image is formed on the photosensitive chip 40.

[0078] It should be noted that the first right-angled prism 32 in the embodiments of the present application refers to a prism with a right-angled triangle cross-section. Exemplarily, the cross-section of the first right-angled prism 32 can be an isosceles triangle. In the embodiments of the present application, the long side of the right-angled triangle is parallel to the second reflecting surface 321.

[0079] In the implementation of the present application, when the second reflecting assembly 30 includes a pentagonal prism 31 and a first right-angled prism 32, the pentagonal prism 31 and the first right-angled prism 32 are spaced apart along the second direction Y, one of the pentagonal prism 31 and the first right-angled prism 32 is spaced apart from the lens assembly 20 along the first direction X, and the other of the pentagonal prism 31 and the first right-angled prism 32 is spaced apart from the photosensitive chip 40 along the first direction X. The incident light is refracted by 90 degrees (or approximately 90 degrees) respectively within the pentagonal prism 31 and the first right-angled prism 32 and reaches the photosensitive chip 40, thereby reducing the length of the camera module and improving the space utilization rate of the electronic device.

[0080] In some embodiments, as Figures 7 to 10 shown, the first right-angled prism 32 has a third side surface 322 extending along the second direction Y and a fourth side surface 323 connecting between the third side surface 322 and the second reflecting surface 321. The fourth side surface 323 extends along the first direction X; along the second direction Y, the fourth side surface 323 is disposed opposite to the second side surface 312.

[0081] As Figures 7 to 10As shown, the first right-angle prism 32 in the embodiment of the present application further includes a third side surface 322 extending along the second direction Y and a fourth side surface 323 connecting the third side surface 322 and the second reflection surface 321, and the fourth side surface 323 extends along the first direction X. That is, when the second direction Y is perpendicular to the first direction X, or the second direction Y is approximately perpendicular to the first direction X, the fourth side surface 323 is perpendicular to the third side surface 322, or the fourth side surface 323 is approximately perpendicular to the third side surface 322. It can be understood that the second reflection surface 321, the third side surface 322, and the fourth side surface 323 are respectively a surface of the first right-angle prism 32, and the second reflection surface 321, the third side surface 322, and the fourth side surface 323 are connected in sequence to form the first right-angle prism 32.

[0082] In the embodiment of the present application, the second side surface 312 of the pentagonal prism 31 and the fourth side surface 323 of the first right-angle prism 32 are arranged opposite to each other along the second direction Y, so that the incident light can enter the first right-angle prism 32 from the pentagonal prism 31, or the incident light can enter the pentagonal prism 31 from the first right-angle prism 32. The incident light can be refracted by 90 degrees (or approximately 90 degrees) respectively in the pentagonal prism 31 and the first right-angle prism 32 and reach the photosensitive chip 40, which helps to reduce the length of the camera module and improve the space utilization rate of the electronic device.

[0083] In some embodiments, as Figure 13 and Figure 14 shown, the pentagonal prism 31 includes a first pentagonal prism 313 and a second pentagonal prism 314. Along the first direction X, the first pentagonal prism 313 is arranged on the other side of the lens assembly 20 away from the first reflection assembly 10; along the second direction Y, the second pentagonal prism 314 is arranged on one side of the first pentagonal prism 313.

[0084] As Figure 13 and Figure 14As shown in the figure, the pentaprism 31 in the embodiment of the present application includes a first pentaprism 313 and a second pentaprism 314. The first pentaprism 313 and the second pentaprism 314 are arranged at intervals along the second direction Y. The first pentaprism 313 is arranged on the other side of the lens assembly 20 away from the first reflection assembly 10 along the first direction X. The second pentaprism 314 is arranged at an interval from the first pentaprism 313 along the second direction Y. The photosensitive chip 40 is arranged on the same side of the second pentaprism 314 as the lens assembly 20 along the first direction X. After the incident light passing through the lens assembly 20 enters the first pentaprism 313 along the first direction X, the first pentaprism 313 can deflect the incident light so that the incident light is deflected by 90 degrees (or approximately 90 degrees). The incident light enters the second pentaprism 314 along the second direction Y, and the second pentaprism 314 deflects the incident light again so that the incident light is deflected by 90 degrees (or approximately 90 degrees) again. The incident light enters the photosensitive chip 40 along the first direction X, and an image is formed on the photosensitive chip 40.

[0085] The second reflection assembly 30 in the embodiment of the present application includes a first pentaprism 313 and a second right-angle prism 314. The first pentaprism 313 and the second pentaprism 314 are arranged at intervals along the second direction Y. The first pentaprism 313 is arranged on the other side of the lens assembly 20 away from the first reflection assembly 10 along the first direction X. The photosensitive chip 40 is arranged on the same side of the second pentaprism 314 as the lens assembly 20 along the first direction X. The incident light is deflected by 90 degrees (or approximately 90 degrees) respectively in the first pentaprism 313 and the second pentaprism 314 and reaches the photosensitive chip 40, which helps to reduce the length of the camera module and improve the space utilization rate of the electronic device.

[0086] In some embodiments, such as Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown in the figure, the first reflection assembly 10 includes a first prism 12. Along the first direction X, the first prism 12 is arranged on the side of the lens assembly 20 away from the second reflection assembly 30. The incident surface of the first prism 12 has a positive optical power, and the exit surface of the first prism 12 has a negative optical power.

[0087] Such as Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 9 , Figure 10As shown, the first prism 12 in the embodiment of the present application is disposed on the side of the lens assembly 20 away from the second reflection assembly 30 along the first direction X. The first prism 12 has an incident surface, that is, the surface where the incident light enters the first prism 12, and the incident surface has a positive optical power. The first prism 12 has an exit surface, that is, the surface where the incident light exits the first prism 12, and the exit surface has a negative optical power. That is to say, the first prism 12 is a convex lens, and the first prism 12 can converge the incident light.

[0088] It should be noted that the first prism 12 in the embodiment of the present application further has a first reflection surface 11, and the first reflection surface 11 is connected between the incident surface and the exit surface. Exemplarily, the first reflection surface 11 can be a surface of the first prism 12, and the first reflection surface 11 can also be a surface disposed inside the first prism 12.

[0089] The first reflection assembly 10 in the embodiment of the present application includes the first prism 12. The incident surface of the first prism 12 has a positive optical power, and the exit surface of the first prism 12 has a negative optical power. That is to say, the first prism 12 can converge the incident light to increase the field of view angle of the lens assembly 20 and improve the long-distance shooting ability of the electronic device. Further, the first prism 12 can also form an anti-shake assembly with mechanical structures such as a motor to reduce the anti-shake sensitivity of the camera module and improve the reliability and stability of the camera module.

[0090] In some embodiments, as Figure 11 and Figure 12 shown, the first reflection assembly 10 includes a fourth lens 13 and a reflector. Along the first direction X, the reflector is disposed on the side of the lens assembly 20 away from the second reflection assembly 30; along the second direction Y, the fourth lens 13 is disposed on one side of the reflector. The fourth lens 13 has a positive optical power, and the fourth lens 13 is used to converge the incident light incident along the second direction Y; the reflector has a first reflection surface 11, and the first reflection surface 11 is used to receive the incident light from the fourth lens 13 and reflect the incident light to the lens assembly 20.

[0091] As Figure 11 and Figure 12 shown, the first reflection assembly 10 in the embodiment of the present application includes a fourth lens 13 and a reflector. The reflector is disposed on the side of the lens assembly 20 away from the second reflection assembly 30 along the first direction X. Along the second direction Y, the fourth lens 13 is disposed on one side of the reflector. Among them, the fourth lens 13 has a positive optical power. That is to say, the fourth lens 13 is a convex lens, and the fourth lens 13 can converge the incident light to increase the field of view angle of the lens assembly 20 and improve the long-distance shooting ability of the electronic device.

[0092] Among them, along the first direction X, the reflecting member is disposed on the side of the lens assembly 20 away from the second reflecting assembly 30. The reflecting member has a first reflecting surface 11. The incident light passing through the fourth lens 13 can enter the reflecting member and irradiate on the first reflecting surface 11. The first reflecting surface 11 can reflect the incident light, causing the incident light to be deflected by 90 degrees (or approximately 90 degrees) and enter the lens assembly 20.

[0093] In the embodiment of the present application, the incident light can be deflected by 90 degrees (or approximately 90 degrees) within the reflecting member and enter the lens assembly 20, which helps to reduce the length of the camera module and improve the space utilization rate of the electronic device.

[0094] In some embodiments, the reflecting member includes a plane mirror or a second right-angle prism 14. The plane mirror or the second right-angle prism 14 is disposed on the side of the lens assembly 20 away from the second reflecting assembly 30 along the first direction X.

[0095] It should be noted that the reflecting member in the embodiment of the present application can be a plane mirror or a second right-angle prism 14. The first reflecting surface 11 is disposed on the plane mirror or the second right-angle prism 14, and the first reflecting surface 11 intersects with the first direction X. By reflecting the incident light through the first reflecting surface 11, the incident light can enter the lens assembly 20.

[0096] In the embodiment of the present application, the incident light can be deflected by 90 degrees (or approximately 90 degrees) within the reflecting member and enter the lens assembly 20, which helps to reduce the length of the camera module and improve the space utilization rate of the electronic device.

[0097] In some embodiments, as Figures 1 to 14 shown, along the first direction X, the first lens 21 is disposed at a position of the lens assembly 20 close to the first reflecting assembly 10. The first lens 21 is a convex lens protruding toward the direction close to the first reflecting assembly 10; and / or, the Abbe number of the first lens 21 is Vd1, satisfying Vd1 > 50.

[0098] As Figures 1 to 14 shown, in the embodiment of the present application, the first lens 21 is disposed at a position of the lens assembly 20 close to the first reflecting assembly 10 along the first direction X, and the first lens 21 is a convex lens protruding toward the direction close to the first reflecting assembly 10. So that the first lens 21 has a positive optical power, and the first lens 21 can converge the incident light, increase the field of view angle of the lens assembly 20, and improve the long-distance shooting ability of the electronic device.

[0099] The Abbe number is a physical quantity invented by the German physicist Ernst Abbe, also known as the "dispersion coefficient", which measures the degree of light dispersion of a transparent medium. That is to say, the Abbe number is an index used to represent the dispersion ability of a transparent medium. Generally speaking, the greater the refractive index of the medium, the more serious the dispersion, and the smaller the Abbe number; conversely, the smaller the refractive index of the medium, the milder the dispersion, and the greater the Abbe number.

[0100] In the embodiments of the present application, the Abbe number Vd1 of the first lens 21 is set to be greater than 50 to reduce the refractive index of the first lens 21 and improve the converging ability of the first lens 21 for incident light, thereby helping to increase the field of view angle of the camera module and improve the long-distance shooting ability of the electronic device. Further, the above setting also helps to further reduce the length of the camera module and the space occupied by the camera module, thereby improving the space utilization rate of the electronic device.

[0101] Exemplarily, the Abbe number Vd1 of the first lens 21 can be 55, 60, 65, 70, 75, 80, etc. In the embodiments of the present application, no specific limitation is made thereto. In actual applications, those skilled in the art can set it according to needs.

[0102] In some embodiments, as Figures 1 to 14 shown, the lens further includes a second lens 22. Along the first direction X, the second lens 22 is spaced apart from the first lens 21, and the second lens 22 is located on the side of the first lens 21 away from the first reflection component 10, and the second lens 22 has a negative optical power.

[0103] As Figures 1 to 14 shown, the lens assembly 20 in the embodiments of the present application further includes a second lens 22. The second lens 22 is spaced apart from the first lens 21 along the first direction X, and the second lens 22 is located on the side of the first lens 21 away from the first reflection component 10, and the second lens 22 has a negative optical power. A second lens 22 with a negative optical power is provided in the lens assembly 20 to correct the aberration of the camera module through the second lens 22 and improve the imaging clarity of the camera module. Further, the second lens 22 is provided behind the first lens 21 to extend the total focal length of the camera module through the second lens 22, so as to increase the field of view angle of the camera module and improve the long-distance shooting ability of the electronic device.

[0104] The second lens 22 in the embodiments of the present application has a negative focal length. It can be understood that the second lens 22 is used to diverge light, and the second lens 22 is a concave lens.

[0105] In some embodiments, as Figures 1 to 14 shown, the second lens 22 is a concave lens that is recessed in the direction away from the second reflection component 30; and / or, the Abbe number of the second lens 22 is Vd2, satisfying Vd2 < 40.

[0106] As Figures 1 to 14 shown, in the embodiment of the present application, the second lens 22 is a concave lens recessed in the direction away from the second reflection component 30, so that the second lens 22 is a concave lens with a negative optical focal length. The pixels of the camera module are corrected by the second lens 22, the aberration of the camera module is improved, and the imaging clarity of the camera module is improved. Further, a second lens 22 with a negative optical focal length is arranged behind the first lens 21 to extend the total focal length of the camera module, increase the field of view angle of the camera module, and improve the long-distance shooting ability of the electronic device.

[0107] In the embodiment of the present application, the Abbe number Vd2 of the second lens 22 is set to be less than 40 to correct the aberration of the camera module by the second lens 22 and improve the imaging clarity of the camera module.

[0108] Exemplarily, the Abbe number Vd2 of the second lens 22 may be 35, 30, 25, 20, 15, etc. In the embodiment of the present application, no specific limitation is made thereto. In actual applications, those skilled in the art can set it as needed.

[0109] In some embodiments, as Figures 1 to 14 shown, the lens further includes at least one third lens 23. Along the first direction X, the third lens 23 is spaced apart from the first lens 21, and the third lens 23 is located on the side of the first lens 21 away from the first reflection component 10; the third lens 23 has a positive optical power, or the third lens 23 has a negative optical power.

[0110] As Figures 1 to 14 shown, the lens in the embodiment of the present application further includes at least one third lens 23. The third lens 23 is spaced apart from the first lens 21 along the first direction X, and the third lens 23 is located on the side of the first lens 21 away from the first reflection component 10. It can be understood that when the third lens 23 includes one, the third lens 23 can be arranged on the side of the second lens 22 away from the first lens 21 along the first direction X, and the third lens 23 can be arranged between the first lens 21 and the second lens 22 along the first direction X. When the third lens 23 includes multiple lenses, the multiple third lenses 23 can be sequentially arranged on the side of the second lens 22 away from the first lens 21 along the first direction X. A part of the multiple third lenses 23 can also be arranged between the first lens 21 and the second lens 22 along the first direction X, and the other part can be arranged on the side of the second lens 22 away from the first lens 21 along the first direction X.

[0111] It should be noted that the third lens 23 in the embodiment of the present application has a positive optical power, or the third lens 23 has a negative optical power. That is to say, the third lens 23 can be a convex lens or a concave lens.

[0112] When the third lens 23 is a convex lens, the third lens 23 can converge the incident light, increase the field of view angle of the lens assembly 20, and enhance the long-distance shooting ability of the electronic device. Moreover, the third lens 23 also helps to further reduce the length of the camera module, decrease the space occupied by the camera module, and thus improve the space utilization rate of the electronic device.

[0113] When the third lens 23 is a concave lens, the third lens 23 can correct the aberration of the camera module and improve the imaging clarity of the camera module. Moreover, the third lens 23 can also extend the total focal length of the camera module to increase the field of view angle of the camera module and enhance the long-distance shooting ability of the electronic device.

[0114] In the embodiment of the present application, there is no excessive limitation on whether the third lens 23 is specifically a convex lens or a concave lens. In actual applications, technicians can set the number of the third lenses 23 and the type of the third lens 23 according to needs.

[0115] In some embodiments, as Figures 1 to 14 shown, the camera module further includes a filter 50, and the filter 50 is disposed between the second reflection component 30 and the photosensitive chip 40.

[0116] As Figures 1 to 14 shown, in the embodiment of the present application, the filter 50 is disposed between the second reflection component 30 and the photosensitive chip 40. The filter 50 filters out infrared rays to avoid the influence of infrared rays on visible light, thereby ensuring the color and quality of the image. That is to say, the filter 50 can prevent infrared rays from interfering with the photosensitive chip 40 and ensure that the image output by the photosensitive chip 40 meets the visual requirements of the human eye.

[0117] The following will describe the camera module disclosed in the embodiment of the present application in conjunction with specific parameters.

[0118] As Figure 3 and Figure 4As shown in the figure, the first reflection component 10 includes a first prism 12, and the first prism 12 has a positive optical power. The lens component 20 includes a first lens 21, a second lens 22, and a third lens 23. The first lens 21 has a positive optical power, the Abbe number Vd1 of the first lens 21 > 50, the second lens 22 has a negative optical power, the Abbe number Vd2 of the second lens 22 < 40, and the third lens 23 has a positive optical power. The second reflection component 30 includes a pentagonal prism 31. The first side 311 of the pentagonal prism 31 extends along the second direction Y, the second side 312 extends along the first direction X, the second side 312 is connected to the first side 311, the second direction Y is perpendicular to the first direction X, or the second direction Y is approximately perpendicular to the first direction X. The incident light enters the right-angle prism 31 from the first side 311 of the pentagonal prism 31, undergoes two refractions within the pentagonal prism 31, and the direction of the incident light is refracted by 90 degrees (or approximately 90 degrees), and exits the pentagonal prism 31 from the second side 312 and enters the filter 50 and the photosensitive chip 40.

[0119] Table 1-1 shows the basic parameters of the camera module

[0120] efl F# DFOV f1 f2 L 30.3 mm 3.1 13.5° 199.9 mm 32.7 mm 30.8 mm

[0121] Among them, ef1 represents the focal length of the camera module, F# is the aperture of the camera module, DFOV is the field of view angle, f1 is the focal length of the first reflection component 10, f2 is the focal length of the lens component 20, and L is the length of the camera module along the first direction X.

[0122] Table 1-2 shows the surface type, curvature radius, thickness, refractive index, and Abbe number of each lens of the camera module

[0123]

[0124]

[0125] Among them, S1 represents the incident surface of the first prism 12, S2 represents the first reflection surface 11, S3 represents the exit surface of the first prism 12, S4 represents the surface of the first lens 21 close to the first reflection component 10, S5 represents the surface of the first lens 21 close to the second lens 22, S6 represents the surface of the second lens 22 close to the first lens 21, S7 represents the surface of the second lens 22 close to the third lens 23, S8 represents the surface of the third lens 23 close to the second lens 22, S9 represents the surface of the third lens 23 close to the second reflection component 30, S10 represents the incident surface of the pentagonal prism 31, S11 and S12 represent the reflection surfaces of the pentagonal prism 31, S13 represents the exit surface of the pentagonal prism 31, S14 represents the incident surface of the filter 50, S15 represents the exit surface of the filter 50, and S16 represents the image surface of the photosensitive chip 40.

[0126] Referring to the above-mentioned even aspherical lens and the calculation formula of its aspherical surface, the aspherical high-order term coefficients of each lens can be obtained in Table 1-3.

[0127] Table 1-3 shows the aspherical high-order term coefficients of each lens

[0128]

[0129]

[0130] Referring to Figure 15 , the axial chromatic aberration of the camera module described in the embodiment of the present application is shown Figure 1 ; referring to Figure 16 , the defocus modulation transfer function of the camera module described in the embodiment of the present application is shown Figure 1 .

[0131] Figure 15 And Figure 16 show the axial chromatic aberration diagram and the separated modulation transfer function diagram of the camera module described in the embodiment of the present application. Figure 15 In, the 5 solid curves are the color lights with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm respectively. It can be seen that the axial chromatic aberration of the camera module in the embodiment of the present application is controlled within a very small range, and the chromatic aberration converges well. Figure 16 From the defocus modulation transfer function diagram in, it can be seen that at a spatial frequency of 1001p / mm, the modulation transfer function of the full field of view is greater than 0.6, having extremely high resolution.

[0132] As Figure 5 and Figure 6 shown, the first reflection component 10 includes a right-angle prism, and this right-angle prism has no optical power. The lens assembly 20 includes a first lens 21, a second lens 22, and two third lenses 23 arranged in sequence along the first direction X. The first lens 21 has a positive optical power, and the Abbe number Vd1 of the first lens 21 > 50. The second lens 22 has a negative optical power, and the Abbe number Vd2 of the second lens 22 < 40. The second reflection component 30 includes a pentagonal prism 31. The first side 311 of this pentagonal prism 31 extends along the second direction Y, and the second side 312 extends along the first direction X. The second side 312 is connected to the first side 311. The second direction Y is perpendicular to the first direction X, or the second direction Y is approximately perpendicular to the first direction X. The incident light enters the right-angle prism 31 from the first side 311 of the pentagonal prism 31, undergoes two refractions within the pentagonal prism 31, and the direction of the incident light is refracted by 90 degrees (or approximately 90 degrees), and exits the pentagonal prism 31 from the second side 312, and enters the filter 50 and the photosensitive chip 40.

[0133] It can be understood that the difference between this embodiment and the above embodiment is that in this embodiment, the first reflection component 10 includes a right-angle prism, while in the above embodiment, the first reflection component 10 includes a first prism 12, and the first prism 12 is a convex lens. The lens component 20 in this embodiment includes four lenses, and the lens component 20 in the above embodiment includes three lenses.

[0134] Table 2-1 shows the basic parameters of the camera module

[0135] efl F# DFOV f1 f2 L 33.3 2.9 12.3 Infinity 33.3 mm 36.7 mm

[0136] Among them, ef1 represents the focal length of the camera module, F# is the aperture of the camera module, DFOV is the field of view angle, f1 is the focal length of the first reflection component 10, f2 is the focal length of the lens component 20, and L is the length of the camera module along the first direction X.

[0137] Table 2-2 shows the surface type, radius of curvature, thickness, refractive index, and Abbe number of each lens of the camera module

[0138]

[0139]

[0140] Among them, S1 represents the incident surface of the right-angle prism, S2 represents the first reflection surface 11, S3 represents the exit surface of the right-angle prism, S4 represents the surface of the first lens 21 close to the first reflection component 10, S5 represents the surface of the first lens 21 close to the second lens 22, S6 represents the surface of the second lens 22 close to the first lens 21, S7 represents the surface of the second lens 22 close to the third lens 23, S8 represents the surface of one third lens 23 close to the second lens 22, S9 represents the surface of one third lens 23 close to the second reflection component 30, S10 represents the surface of the other third lens 23 close to the second lens 22, S11 represents the surface of the other third lens 23 close to the second reflection component 30, S12 represents the incident surface of the pentagonal prism 31, S13 and S14 represent the reflection surfaces of the pentagonal prism 31, S15 represents the exit surface of the pentagonal prism 31, S16 represents the incident surface of the filter 50, S17 represents the exit surface of the filter 50, and S18 represents the image surface of the photosensitive chip 40.

[0141] Referring to the above-mentioned even aspherical lens and the calculation formula of its aspherical surface, the aspherical high-order term coefficients of each lens in Table 1-3 can be obtained.

[0142] Table 2-3 shows the aspherical high-order term coefficients of each lens

[0143]

[0144] Referring to Figure 17, showing the axial chromatic aberration of the camera module in the embodiment of the present application Figure 2 ; Refer to Figure 18 , showing the defocus modulation transfer function of the camera module in the embodiment of the present application Figure 2 .

[0145] Figure 17 And Figure 18 show the axial chromatic aberration diagram and the separated modulation transfer function diagram of the camera module in the embodiment of the present application. Figure 17 Among them, the 5 solid curves are the color lights with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm respectively. It can be seen that the axial chromatic aberration of the camera module in the embodiment of the present application is controlled within a very small range, and the chromatic aberration converges well. Figure 18 From the defocus modulation transfer function diagram, it can be seen that at a spatial frequency of 1001p / mm, the modulation transfer function of the full field of view is greater than 0.6, with extremely high resolution.

[0146] As Figure 7 And Figure 8 shown, the first reflection component 10 includes a first prism 12, and the first prism 12 has a positive optical power. The lens assembly 20 includes a first lens 21, a second lens 22, and a third lens 23. The first lens 21 has a positive optical power, the Abbe number Vd1 of the first lens 21 > 50, the second lens 22 has a negative optical power, the Abbe number Vd2 of the second lens 22 < 40, and the third lens 23 has a positive optical power. The second reflection component 30 includes a pentagonal prism 31 and a first right-angle prism 32. The first right-angle prism 32 is spaced from the lens assembly 20 along the first direction X, and the pentagonal prism 31 is spaced from the first right-angle prism 32 along the second direction Y. The incident light enters the first right-angle prism 32 from the lens assembly 20, is refracted by 90 degrees (or approximately 90 degrees) by the first right-angle prism 32, enters the pentagonal prism 31 along the second direction Y, and is refracted twice in the pentagonal prism 31. The incident light is refracted by 90 degrees (or approximately 90 degrees) in the pentagonal prism 31 and enters the filter 50 and the photosensitive chip 40 along the first direction X.

[0147] It can be understood that the difference between this embodiment and the above embodiment is that the second reflection component 30 further includes a first right-angle prism 32. The first right-angle prism 32 is spaced from the lens assembly 20 along the first direction X, and the pentagonal prism 31 is spaced from the first right-angle prism 32 along the second direction Y.

[0148] Table 3-1 shows the basic parameters of the camera module

[0149] efl F# DFOV f1 f2 L 33.2 3.3 12.4 527 32.96 mm 33.3 mm

[0150] Among them, ef1 represents the focal length of the camera module, F# is the aperture of the camera module, DFOV is the field of view angle, f1 is the focal length of the first reflection component 10, f2 is the focal length of the lens component 20, and L is the length of the camera module along the first direction X.

[0151] Table 3-2 shows the surface type, radius of curvature, thickness, refractive index, and Abbe number of each lens of the camera module

[0152]

[0153]

[0154] Among them, S1 represents the incident surface of the first prism 12, S2 represents the first reflection surface 11, S3 represents the exit surface of the first prism 12, S4 represents the surface of the first lens 21 close to the first reflection component 10, S5 represents the surface of the first lens 21 close to the second lens 22, S6 represents the surface of the second lens 22 close to the first lens 21, S7 represents the surface of the second lens 22 close to the third lens 23, S8 represents the surface of the third lens 23 close to the second lens 22, S9 represents the surface of the third lens 23 close to the second reflection component 30, S10 represents the incident surface of the first right-angle prism, S11 represents the reflection surface of the first right-angle prism, S12 represents the exit surface of the first right-angle prism, S13 represents the incident surface of the pentagonal prism 31, S14 and S15 represent the reflection surfaces of the pentagonal prism 31, S16 represents the exit surface of the pentagonal prism 31, S17 represents the incident surface of the filter 50, S18 represents the exit surface of the filter 50, and S19 represents the image surface of the photosensitive chip 40.

[0155] Referring to the above-mentioned even aspherical lens and the calculation formula of its aspherical surface, the aspherical high-order term coefficients of each lens in Table 1-3 can be obtained.

[0156] Table 3-3 shows the aspherical high-order term coefficients of each lens

[0157]

[0158] Referring to Figure 19 , the axial chromatic aberration of the camera module described in the embodiment of the present application is shown Figure 3 ; referring to Figure 20 , the defocus modulation transfer function of the camera module described in the embodiment of the present application is shown Figure 3 .

[0159] Figure 19 And Figure 20 show the axial chromatic aberration diagram and the separated modulation transfer function diagram of the camera module described in the embodiment of the present application. Figure 19Among them, the five solid curves are color lights with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, and 470 nm respectively. It can be seen that the axial chromatic aberration of the camera module in the embodiment of the present application is controlled within a very small range, and the chromatic aberration convergence is good. Figure 20 It can be seen from the defocus modulation transfer function diagram that at a spatial frequency of 1001 p / mm, the modulation transfer function of the full field of view is greater than 0.6, having extremely high resolution.

[0160] Such as Figure 9 and Figure 10 As shown in FIGS. and, the first reflection component 10 includes a first prism 12, and the first prism 12 has a positive optical power. The lens assembly 20 includes a first lens 21, a second lens 22, and a third lens 23. The first lens 21 has a positive optical power, the Abbe number Vd1 of the first lens 21 > 50, the second lens 22 has a negative optical power, the Abbe number Vd2 of the second lens 22 < 40, and the third lens 23 has a positive optical power. The second reflection component 30 includes a pentagonal prism 31 and a first right-angle prism 32. The pentagonal prism 31 is spaced from the lens assembly 20 along the first direction X, and the first right-angle prism 32 is spaced from the pentagonal prism 31 along the second direction Y. The incident light enters the pentagonal prism 31 from the lens assembly 20, is refracted by 90 degrees (or approximately 90 degrees) by the pentagonal prism 31, enters the first right-angle prism 32 along the second direction Y, is refracted by 90 degrees (or approximately 90 degrees) by the first right-angle prism 32, and enters the filter 50 and the photosensitive chip 40 along the first direction X.

[0161] It can be understood that the difference between this embodiment and the above embodiment is that the second reflection component 30 further includes a first right-angle prism 32. The pentagonal prism 31 is spaced from the lens assembly 20 along the first direction X, and the first right-angle prism 32 is spaced from the pentagonal prism 31 along the second direction Y.

[0162] Table 4-1 shows the basic parameters of the camera module

[0163] efl F# DFOV f1 f2 L 33.2 3.3 12.4 527 32.96 mm 33.3 mm

[0164] Among them, ef1 represents the focal length of the camera module, F# is the aperture of the camera module, DFOV is the field of view angle, f1 is the focal length of the first reflection component 10, f2 is the focal length of the lens assembly 20, and L is the length of the camera module along the first direction X.

[0165] Table 4-2 shows the surface type, radius of curvature, thickness, refractive index, and Abbe number of each lens of the camera module

[0166]

[0167] Among them, S1 represents the incident surface of the first prism 12, S2 represents the first reflection surface 11, S3 represents the exit surface of the first prism 12, S4 represents the surface of the first lens 21 close to the first reflection assembly 10, S5 represents the surface of the first lens 21 close to the second lens 22, S6 represents the surface of the second lens 22 close to the first lens 21, S7 represents the surface of the second lens 22 close to the third lens 23, S8 represents the surface of the third lens 23 close to the second lens 22, S9 represents the surface of the third lens 23 close to the second reflection assembly 30, S10 represents the incident surface of the pentagonal prism 31, S11 and S12 represent the reflection surfaces of the pentagonal prism 31, S13 represents the exit surface of the pentagonal prism 31, S14 represents the incident surface of the first right prism, S15 represents the reflection surface of the first right prism, S16 represents the exit surface of the first right prism, S17 represents the incident surface of the filter 50, S18 represents the exit surface of the filter 50, and S19 represents the image surface of the photosensitive chip 40.

[0168] Referring to the above-mentioned even aspherical lens, according to the calculation formula of its aspherical surface, the aspherical high-order term coefficients of each lens in Table 1-3 can be obtained.

[0169] Table 4-3 shows the aspherical high-order term coefficients of each lens

[0170]

[0171]

[0172] Referring to Figure 21 , the axial chromatic aberration of the camera module described in the embodiment of the present application is shown Figure 4 ; referring to Figure 22 , the defocus modulation transfer function of the camera module described in the embodiment of the present application is shown Figure 4 .

[0173] Figure 21 and Figure 22 show the axial chromatic aberration diagram and the separated modulation transfer function diagram of the camera module described in the embodiment of the present application. Figure 20 Among them, the 5 solid curves are the color lights with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm respectively. It can be seen that the axial chromatic aberration of the camera module in the embodiment of the present application is controlled within a very small range, and the chromatic aberration convergence is good. Figure 22 From the defocus modulation transfer function diagram, it can be seen that at a spatial frequency of 1001p / mm, the full-field modulation transfer function is greater than 0.6, indicating extremely high resolution.

[0174] An embodiment of the present application also discloses an electronic device, which includes an electronic device body and the camera module described in the above embodiment, and the camera module is connected to the electronic device body.

[0175] It should be noted that the camera module included in the electronic device disclosed in the embodiment of the present application has the same structure as the camera module described in the above embodiment, and its beneficial effects are also similar. Therefore, they will not be elaborated here.

[0176] In the description of this specification, the description of reference terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0177] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A camera module, characterized in that: include: A lens assembly, wherein the lens assembly comprises at least three lenses, wherein the at least three lenses are spaced apart along a first direction, and wherein the lenses comprise a first lens, wherein the first lens has positive optical power; a first reflective assembly, along the first direction, the first reflective assembly being disposed on one side of the lens assembly, the first reflective assembly being used to reflect incident light incident along a second direction to the lens assembly, the second direction intersecting the first direction; a second reflective assembly, along the first direction, the second reflective assembly is arranged on the other side of the lens assembly away from the first reflective assembly, the second reflective assembly comprises at least one pentagonal prism, and the pentagonal prism is used to fold incident light from the lens assembly; A photosensitive chip is disposed on one side of the second reflective component, and is used for receiving incident light from the second reflective component to form an image.

2. The camera module according to claim 1, characterized in that: The pentaangular prism comprises a first side surface and a second side surface connected to the first side surface, the first side surface extends along the second direction, the second side surface extends along the first direction, and the second direction intersects with the first direction; One of the first side surface and the second side surface is an incident surface of the pentaangular prism, and the other one of the first side surface and the second side surface is an exit surface of the pentaangular prism.

3. The camera module according to claim 2, characterized in that: Along the first direction, the first side surface is arranged opposite to the lens assembly; Along the second direction, the photosensitive chip is arranged opposite to the second side surface.

4. The camera module according to claim 2, characterized in that: The second reflective assembly further includes a first right-angle prism, the first right-angle prism is arranged on one side of the pentagonal prism along the second direction, the first right-angle prism has a second reflective surface, and the second reflective surface intersects with the first direction; Along the first direction, one of the pentaangular prism and the first right-angle prism is arranged on the other side of the lens assembly away from the first reflecting assembly, and one of the pentaangular prism and the first right-angle prism is used to receive incident light from the lens assembly and reflect the incident light to the other of the pentaangular prism and the first right-angle prism, and the other of the pentaangular prism and the first right-angle prism receives the incident light and reflects the incident light to the photosensitive chip to form an image.

5. The camera module according to claim 4, characterized in that: The first right-angle prism has a third side surface extending along the second direction and a fourth side surface connected between the third side surface and the second reflecting surface, and the fourth side surface extends along the first direction; Along the second direction, the fourth side surface is arranged opposite to the second side surface.

6. The camera module according to claim 2, characterized in that: The penta prism includes a first penta prism and a second penta prism, Along the first direction, the first penta-prism is arranged on the other side of the lens assembly away from the first reflective assembly; Along the second direction, the second pentaangular prism is disposed on one side of the first pentaangular prism.

7. The camera module according to claim 1, characterized in that: The first reflective component includes a first prism, and along the first direction, the first prism is arranged on a side of the lens component away from the second reflective component. The incident surface of the first prism has positive optical power, and the exit surface of the first prism has negative optical power.

8. The camera module according to claim 1, characterized in that: The first reflection assembly includes a fourth lens and a reflection member, Along the first direction, the reflective component is arranged on a side of the lens assembly away from the second reflective assembly; The fourth lens is disposed on one side of the reflector along the second direction, the fourth lens has positive optical power, and is used for converging incident light incident along the second direction; The reflector has a first reflective surface, and the first reflective surface is used to receive incident light from the fourth lens and reflect the incident light to the lens assembly.

9. The camera module according to claim 8, characterized in that: The reflective component includes a plane mirror or a second right-angle prism, and the plane mirror or the second right-angle prism is arranged along the first direction on a side of the lens assembly away from the second reflective assembly.

10. The camera module according to claim 1, characterized in that: Along the first direction, the first lens is arranged at a position of the lens assembly close to the first reflective assembly, and the first lens is a convex lens protruding toward a direction close to the first reflective assembly; And / or, the Abbe number of the first lens is Vd1, satisfying Vd1>50.

11. The camera module according to claim 10, characterized in that: The lens further includes a second lens. The second lens is spaced apart from the first lens along the first direction and is located on a side of the first lens away from the first reflective component. The second lens has negative optical power.

12. The camera module according to claim 11, characterized in that: The second lens is a concave lens that is concave in a direction away from the second reflective component; And / or, the Abbe number of the second lens is Vd2, satisfying Vd2<40.

13. The camera module according to any one of claims 10 to 12, characterized in that: The lens further includes at least one third lens, wherein the third lens is spaced apart from the first lens along the first direction, and the third lens is located on a side of the first lens away from the first reflective component; The third lens has positive refractive power, or the third lens has negative refractive power.

14. The camera module according to claim 1, characterized in that: The camera module also includes a filter, which is arranged between the second reflective component and the photosensitive chip.

15. An electronic device, characterized in that: It comprises an electronic device body and a camera module as described in any one of claims 1 to 14, wherein the camera module is connected to the electronic device body.

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