Periscope camera module and electronic device

Abstract

The present application provides a periscopic camera module and electronic device. The periscopic camera module comprises: a first light turning piece for turning the light from the outside; a lens assembly arranged opposite to the first light turning piece, for receiving the light emitted by the first light turning piece and making the light emit along a first direction; a second light turning piece arranged on the side of the lens assembly away from the first light turning piece, for turning the light emitted by the lens assembly multiple times and making the light emit along a second direction, the second direction being perpendicular to the first direction; and a photosensitive assembly arranged on the side of the lens assembly away from the first light turning piece and arranged opposite to the second light turning piece, for receiving the light emitted from the second direction. The periscopic camera module can increase the length of the optical path between the lens assembly and the photosensitive assembly, realize the long-focus function, and achieve the effect of reducing the overall space without affecting the thickness.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of camera modules, and in particular to a periscopic camera module and an electronic device. BACKGROUND

[0002] In order to avoid increasing the thickness of the mobile phone, the long-focus camera module used in the mobile phone at present is a periscopic camera module, that is, the propagation direction of light is changed through a prism or other light turning component, so that the elements such as lenses and photosensitive components can be arranged transversely in the mobile phone shell.

[0003] At present, users have higher and higher requirements for the shooting quality and zoom of shooting devices such as mobile phones. Generally, short / middle / long focus lenses are selected to achieve high magnification zoom function in relay or hybrid architecture. As for long focus lenses, the traditional upright architecture height cannot meet the general mobile phone device thickness requirement due to the too long total track length (TTL), so most long focus lens modules on the market add a mirror or a triangular prism and use a periscopic architecture to achieve a solution to meet the thickness requirement of the mobile phone. In the process of implementing the present application, the inventors have found that the prior art at least has the following problems: the conventional periscopic architecture can only improve the thickness, and the overall module still needs to occupy length space for configuration. SUMMARY

[0004] In view of the above, it is necessary to provide a periscopic camera module and an electronic device to solve the above problems.

[0005] The present application provides a periscopic camera module, comprising:

[0006] A first light turning piece is configured to turn the light from the outside;

[0007] A lens assembly is arranged opposite to the first light turning piece and configured to receive the light emitted by the first light turning piece and make the light emit along a first direction;

[0008] A second light turning piece is arranged on the side of the lens assembly away from the first light turning piece and configured to turn the light emitted by the lens assembly multiple times and make the light emit along a second direction, wherein the second direction is perpendicular to the first direction; and

[0009] A photosensitive component is arranged on the side of the lens assembly away from the first light turning piece and arranged opposite to the second light turning piece, and configured to receive the light emitted from the second direction.

[0010] The periscopic camera module can increase the length of the optical path between the lens assembly and the photosensitive assembly, realize the long-focus function, and achieve the effect of reducing the overall space without affecting the thickness.

[0011] In some embodiments, the second light turning piece comprises:

[0012] The first reflective prism is arranged opposite to the lens assembly, and comprises a first inner reflective surface, a second inner reflective surface, and an outer reflective surface. The first inner reflective surface and the second inner reflective surface are arranged opposite to each other in parallel. The first inner reflective surface is configured to reflect the light emitted by the lens assembly to a third direction and to the second inner reflective surface. The second inner reflective surface is configured to reflect the light to a first direction. The third direction is opposite to the second direction.

[0013] The second reflective prism is arranged on the side of the first reflective prism away from the lens assembly. The second reflective prism comprises a third inner reflective surface and a fourth inner reflective surface connected to each other. The third inner reflective surface is configured to reflect the light in the first direction reflected by the second inner reflective surface to the second direction and to the fourth inner reflective surface. The fourth inner reflective surface is configured to reflect the light to a fourth direction and to the outer reflective surface. The outer reflective surface is configured to reflect the light to the second direction and to the photosensitive assembly. The fourth direction is opposite to the first direction.

[0014] In this way, the first reflective prism and the second reflective prism cooperate with each other to reflect the light emitted by the lens assembly multiple times and to the photosensitive assembly in the second direction.

[0015] In some embodiments, the first reflective prism and the second reflective prism are integrally arranged. The light exit surface of the first reflective prism and the light entrance surface of the second reflective prism are glued.

[0016] In this way, the integral arrangement of the first reflective prism and the second reflective prism can achieve the effect of reducing the overall space.

[0017] In some embodiments, the first reflective prism and the second reflective prism are separately arranged. The periscopic camera module further comprises:

[0018] The first driving piece is connected to the second reflective prism and is configured to drive the second reflective prism to move towards or away from the first reflective prism.

[0019] In this way, the first driving piece can drive the second reflective prism to move to realize automatic focusing.

[0020] In some embodiments, the first reflective prism is a quadrangular prism, and the second reflective prism is a triangular prism.

[0021] In this way, the quadrangular prism and the triangular prism cooperate to perform multiple light turning on the light emitted by the lens assembly and emit the light to the photosensitive assembly along the second direction.

[0022] In some embodiments, the electronic device further comprises:

[0023] The second driving member is connected to the photosensitive assembly and configured to drive the photosensitive assembly to move towards or away from the first reflective prism.

[0024] In this way, the second driving member can drive the photosensitive assembly to move to achieve automatic focusing.

[0025] In some embodiments, the electronic device further comprises:

[0026] The third driving member is connected to the lens assembly and configured to drive the lens assembly to move towards or away from the first light turning member.

[0027] In this way, the third driving member can drive the lens assembly to move to achieve automatic focusing.

[0028] In some embodiments, the first light turning member is a triangular prism.

[0029] In this way, the triangular prism can turn the light emitted from the outside and emit the light into the lens assembly.

[0030] In some embodiments, the electronic device further comprises:

[0031] The filter is arranged between the second light turning member and the photosensitive assembly.

[0032] In this way, the filter can filter the stray light in the light reflected by the outer reflecting surface of the second light turning member, and ensure the imaging quality.

[0033] Embodiments of the present application provide an electronic device comprising the periscopic camera module.

[0034] The periscopic camera module included in the electronic device described above performs multiple light turning on the light emitted by the lens assembly through the second light turning member, and emits the light to the photosensitive assembly along the second direction, which can increase the length of the optical path between the lens assembly and the photosensitive assembly, achieve the long-focus function, and achieve the effect of reducing the overall space without affecting the thickness. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic diagram of a periscopic camera module according to a first embodiment of the present application.

[0036] Figure 2FIG. 2 is a structural schematic diagram of a periscopic camera module according to a second embodiment of the present application.

[0037] Figure 3 FIG. 3 is a perspective schematic diagram of an electronic device according to a third embodiment of the present application.

[0038] Main element symbol explanation

[0039] Periscopic camera module 100, 200

[0040] First light turning piece 10, 210

[0041] Lens assembly 20, 220

[0042] Second light turning piece 30, 230

[0043] First reflective prism 32, 232

[0044] Light exit surface 2322

[0045] First internal reflection surface 322

[0046] Second internal reflection surface 324

[0047] External reflection surface 326

[0048] Second reflective prism 34, 234

[0049] Light entrance surface 2342

[0050] Third internal reflection surface 342

[0051] Fourth internal reflection surface 344

[0052] Photosensitive assembly 40, 240

[0053] First driving piece 50

[0054] Second driving piece 60

[0055] Optical filter 70

[0056] Third driving piece 80

[0057] Lens barrel 90

[0058] Housing groove 92

[0059] Electronic device 300 DETAILED DESCRIPTION

[0060] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0061] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0062] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0063] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For purposes of simplicity and clarity, the description is directed to specific examples and embodiments. However, one skilled in the art will understand that the application can be practiced with many modifications, alternatives and variations of the embodiments specifically recited and / or of the methods and materials described and illustrated herein beyond those set forth in the following description. Accordingly, the application should not be deemed as limited to the embodiments described herein, but only by the claims that follow.

[0065] Referring to Figure 1 The first embodiment of the present application provides a periscope camera module 100, comprising at least a first light turning piece 10, a lens assembly 20, a second light turning piece 30 and a photosensitive assembly 40.

[0066] The first light turning piece 10 is used for turning the light rays from the outside.

[0067] The lens assembly 20 is arranged opposite to the first light turning piece 10, used for receiving the light rays emitted by the first light turning piece 10 and making the light rays emit along a first direction.

[0068] The second light turning piece 30 is arranged on the side of the lens assembly 20 away from the first light turning piece 10, used for turning the light rays emitted by the lens assembly 20 for multiple times and making the light rays emit along a second direction, the second direction being perpendicular to the first direction. The photosensitive assembly 40 is arranged on the side of the lens assembly 20 away from the first light turning piece 10 and arranged opposite to the second light turning piece 30, used for receiving the light rays emitted by the second light turning piece 30 from the second direction.

[0069] For the convenience of understanding, in the embodiment, the first direction is defined as right, the second direction is defined as up, the third direction is defined as down and the fourth direction is defined as left.

[0070] The periscope camera module 100 described above turns the light rays emitted by the lens assembly 20 for multiple times by the second light turning piece 30 and makes the light rays emit along the second direction to the photosensitive assembly 40, which can increase the length of the optical path between the lens assembly 20 and the photosensitive assembly 40, realize the long-focus function and achieve the effect of reducing the overall space without affecting the thickness.

[0071] The first light turning piece 10 is a triangular prism. In this way, the triangular prism can turn the light rays from the outside and emit them into the lens assembly 20.

[0072] The lens assembly 20 includes at least one lens. Thus, different numbers of lenses can be selected to meet different requirements. For example, four, five, or six lenses. The lens assembly 20 includes, but is not limited to, a short-focus lens, a medium-focus lens, and a long-focus lens.

[0073] The second light turning piece 30 includes a first reflective prism 32 and a second reflective prism 34.

[0074] The first reflective prism 32 is arranged opposite to the lens assembly 20. The first reflective prism 32 includes a first inner reflective surface 322, a second inner reflective surface 324, and an outer reflective surface 326. The first inner reflective surface 322 and the second inner reflective surface 324 are arranged opposite and parallel to each other. The first inner reflective surface 322 is used to reflect the light emitted by the lens assembly 20 to a third direction and to the second inner reflective surface 324. The second inner reflective surface 324 is used to reflect the light to a first direction. That is to say, the light emitted by the lens assembly 20 along the first direction enters the first reflective prism 32, and then is reflected by the first inner reflective surface 322 and the second inner reflective surface 324 in turn and is emitted along the first direction to the second reflective prism 34. The third direction is opposite to the second direction. It can be seen that the light is horizontally displaced after being reflected by the first inner reflective surface 322 and the second inner reflective surface 324, but can still be emitted along the first direction. In this embodiment, the first reflective prism 32 is a quadrangular prism. The cross section of the quadrangular prism is a parallelogram. The material of the first reflective prism 32 includes, but is not limited to, glass and plastic.

[0075] The second reflective prism 34 is disposed on the side of the first reflective prism 32 away from the lens assembly 20, and includes a third inner reflective surface 342 and a fourth inner reflective surface 344 connected in sequence. The third inner reflective surface 342 is configured to reflect the light rays of the first direction reflected by the second inner reflective surface 324 to a second direction and to the fourth inner reflective surface 344. The fourth inner reflective surface 344 is configured to reflect the light rays to a fourth direction and to the outer reflective surface 326. The outer reflective surface 326 is configured to reflect the light rays to the second direction and to the photosensitive assembly 40. In other words, after the light rays of the first direction reflected by the second inner reflective surface 324 enter the second reflective prism 34, the light rays are reflected by the third inner reflective surface 342 and the fourth inner reflective surface 344 in sequence, and then exit along the fourth direction and reach the outer reflective surface 326. The outer reflective surface 326 reflects the light rays to the second direction and to the photosensitive assembly 40. The fourth direction is opposite to the first direction, and it can be seen that the light rays are horizontally displaced and turned back after being reflected by the third inner reflective surface 342 and the fourth inner reflective surface 344. In this way, the first reflective prism 32 and the second reflective prism 34 cooperate to turn the light rays emitted by the lens assembly 20 multiple times, and then emit the light rays along the second direction to the photosensitive assembly 40. In this embodiment, the light rays emitted by the lens assembly 20 reach the photosensitive assembly 40 after being reflected five times. The second reflective prism 34 is a triangular prism, and the material of the second reflective prism 34 includes but is not limited to glass and rubber.

[0076] In some embodiments, the first reflective prism 32 and the second reflective prism 34 are separately disposed, and the periscopic camera module 100 further includes a first driving member 50 (not shown in the figure). The first driving member 50 is connected to the second reflective prism 34 and configured to drive the second reflective prism 34 to move towards or away from the first reflective prism 32. In this way, the first driving member 50 can drive the second reflective prism 34 to move to achieve automatic focusing. It can be understood that the first driving member 50 includes but is not limited to a stepping motor (SM), a voice coil motor (VCM), a piezoelectric motor (PM), and a micro-electromechanical system (MEMS).

[0077] The photosensitive component 40 includes, but is not limited to, a complementary metal oxide semiconductor (CMOS) image sensor or a charge-coupled device (CCD). In some embodiments, the periscopic camera module 100 further includes a second driving member 60 connected with the photosensitive component 40, for driving the photosensitive component 40 to move towards or away from the first reflecting prism 32. In this way, the second driving member 60 can drive the photosensitive component 40 to move to achieve automatic focusing. It can be understood that the second driving member 60 includes, but is not limited to, a stepping motor (SM), a voice coil motor (VCM), a piezoelectric motor (PM), and a micro-electromechanical system (MEMS).

[0078] The periscopic camera module 100 further includes a filter 70 disposed between the first reflecting prism 32 of the second light turning member 30 and the photosensitive component 40. In this way, the filter 70 can filter stray light in the light reflected by the outer reflecting surface 326 of the second light turning member 30, ensuring imaging quality.

[0079] In some embodiments, the periscopic camera module 100 further includes a third driving member 80 connected with the lens assembly 20, for driving the lens assembly 20 to move towards or away from the first light turning member 10. In this way, the third driving member 80 can drive the lens assembly 20 to move to achieve automatic focusing. It can be understood that the third driving member 80 includes, but is not limited to, a stepping motor (SM), a voice coil motor (VCM), a piezoelectric motor (PM), and a micro-electromechanical system (MEMS).

[0080] In some embodiments, the periscopic camera module 100 further includes a lens barrel 90 including a receiving groove 92, and the first light turning member 10, the lens assembly 20, the second light turning member 30, and the photosensitive component 40 are all disposed in the receiving groove 92. It can be understood that the shape of the lens barrel 90 and the shape of the receiving groove 92 are not limited to fixed structures, and can be adjusted according to space requirements. In this way, the module design for overall space utilization will be more flexible.

[0081] Please refer to Figure 2The second embodiment of the present application provides a periscopic camera module 200, which comprises at least a first light turning piece 210, a lens assembly 220, a second light turning piece 230 and a photosensitive assembly 240. The second light turning piece 230 comprises a first reflecting prism 232 and a second reflecting prism 234. The periscopic camera module 200 in the second embodiment is substantially the same as the periscopic camera module 100 in the first embodiment, except that the first reflecting prism 232 and the second reflecting prism 234 are integrally arranged, and the light exit surface 2322 of the first reflecting prism 232 and the light entrance surface 2342 of the second reflecting prism 234 are glued together. In this way, the integrally arranged first reflecting prism 232 and second reflecting prism 234 can achieve the effect of reducing the overall space.

[0082] Please refer to Figure 3 The third embodiment of the present application provides an electronic device 300, which comprises the periscopic camera module 100 of the above embodiments.

[0083] In the embodiment, the electronic device 300 is a smart phone. It can be understood that in other embodiments, the electronic device 300 can be a smart wearable device, a tablet computer, an electronic book reader, a wearable device, etc. The embodiments of the present application do not limit the specific types of electronic devices.

[0084] The periscopic camera module 100 in the above electronic device 300 can increase the length of the optical path between the lens assembly 20 and the photosensitive assembly 40 by turning the light emitted by the lens assembly 20 multiple times through the second light turning piece 30 and emitting the light to the photosensitive assembly 40 along the second direction, so as to achieve the long-focus function, and achieve the effect of reducing the overall space without affecting the thickness.

[0085] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

[0086] The above embodiments are only used to illustrate the technical solutions of the present application rather than limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application.

Claims

1. A periscope camera module, comprising: The periscopic camera module comprises: a first light turning piece for turning the light from the outside; a lens assembly arranged opposite to the first light turning piece, for receiving the light emitted by the first light turning piece and emitting the light in a first direction; a second light turning piece arranged on the side of the lens assembly away from the first light turning piece, for turning the light emitted by the lens assembly multiple times and emitting the light in a second direction, wherein the second direction is perpendicular to the first direction; and a photosensitive assembly arranged on the side of the lens assembly away from the first light turning piece and arranged opposite to the second light turning piece, for receiving the light emitted in the second direction. The second light turning piece comprises a first reflecting prism and a second reflecting prism. The first reflecting prism is arranged opposite to the lens assembly. The first reflecting prism comprises a first inner reflecting surface, a second inner reflecting surface and an outer reflecting surface. The first inner reflecting surface and the second inner reflecting surface are arranged opposite to each other in parallel. The first inner reflecting surface is used for reflecting the light emitted by the lens assembly to a third direction and to the second inner reflecting surface. The second inner reflecting surface is used for reflecting the light to the first direction. The third direction is opposite to the second direction. The second reflecting prism is arranged on the side of the first reflecting prism away from the lens assembly. The second reflecting prism comprises a third inner reflecting surface and a fourth inner reflecting surface connected to each other. The third inner reflecting surface is used for reflecting the light in the first direction reflected by the second inner reflecting surface to the second direction and to the fourth inner reflecting surface. The fourth inner reflecting surface is used for reflecting the light to a fourth direction and to the outer reflecting surface. The outer reflecting surface is used for reflecting the light to the second direction and to the photosensitive assembly. The fourth direction is opposite to the first direction. 2.The periscope camera module of claim 1, wherein, The first reflecting prism and the second reflecting prism are integrally arranged. The light exit surface of the first reflecting prism and the light entrance surface of the second reflecting prism are glued. 3.The periscope camera module of claim 1 or 2, wherein, The first reflecting prism and the second reflecting prism are separately arranged. The periscopic camera module further comprises: a first driving piece connected to the second reflecting prism, for driving the second reflecting prism to move towards or away from the first reflecting prism. 4.The periscope camera module of claim 1 or 2, wherein, The first reflecting prism is a quadrangular prism, and the second reflecting prism is a triangular prism. 5.The periscope camera module of any one of claims 1 or 2, wherein, The periscopic camera module further comprises: a second driving piece connected to the photosensitive assembly, for driving the photosensitive assembly to move towards or away from the first reflecting prism. 6.The periscope camera module of any one of claims 1 or 2, wherein, The periscopic camera module further comprises: a third driving piece connected to the lens assembly, for driving the lens assembly to move towards or away from the first light turning piece. 7.The periscope camera module of claim 1 or 2, wherein, The first light turning piece is a triangular prism. 8.The periscope camera module of claim 1 or 2, wherein, The periscopic camera module further comprises: a filter arranged between the second light turning piece and the photosensitive assembly.

9. An electronic device, comprising: The periscopic camera module comprises any one of claims 1-8.

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