Telephoto camera module and electronic device having telephoto camera module

Abstract

The present invention provides a telephoto camera module and an electronic device having the telephoto camera module. The telephoto camera module comprises a lens assembly, an optical path folding assembly, a photosensitive assembly, and a module support; the module support comprises a first mounting surface and a second mounting surface arranged back-to-back; the lens assembly and the photosensitive assembly are arranged on the first mounting surface of the module support; the optical path folding assembly is arranged on the second mounting surface; the optical path folding assembly has a multi-folded optical path; incident light is incident to the optical path folding assembly through the lens assembly, and then is folded by means of the optical path folding assembly to exit to the photosensitive assembly.

Description

Telephoto camera modules and electronic devices with telephoto camera modules Technical Field

[0001] This invention relates to the field of lens module technology, and more particularly to a telephoto camera module and an electronic device with a telephoto camera module. Background Technology

[0002] Due to the size limitations of mobile phones and other electronic devices, camera modules are becoming smaller and smaller. However, better image quality is the development trend of camera modules, which requires the configuration of image sensors with larger optical sizes. Consequently, the height of the lens is getting larger and larger, resulting in the height of the camera module being larger and larger. However, the thickness of mobile phones is limited and is even getting smaller and smaller. This requires a smaller size camera module that can produce higher image quality at the same time.

[0003] Besides the need for larger image sensors, there is also a strong demand for telephoto shooting. Periscope camera modules are used for telephoto shooting. By folding the light path, the physical length of the lens can be shorter than its optical focal length, thus providing greater zoom capabilities within the compact space inside the phone. Typical periscope camera modules use a combination of a prism and a lens. The incident light is folded once by the prism, achieving a light path reversal, before passing through the lens to reach the image sensor for imaging. This type of camera module has certain limitations, such as a long overall optical length, a small aperture, and a large size. It cannot achieve shooting at greater distances, has limited light intake, and is difficult to miniaturize.

[0004] Existing periscope camera modules have relatively small apertures and sensor sizes. The aperture size is determined by the lens's focal length and diameter. Due to the thickness limitations of mobile phones, the lens diameter cannot be made very large, resulting in a relatively large aperture (f-number), meaning the actual aperture opening is small. The image sensor in a periscope camera module is arranged along the thickness of the mobile phone. Because of the thickness limitations of the camera module, a larger size cannot be used; therefore, a relatively low-specification image sensor is used, which may limit the performance of the periscope camera module. In other words, the lens size and chip size of existing periscope camera modules are limited by the thickness of the mobile phone, preventing the achievement of a large image sensor. Summary of the Invention

[0005] A key advantage of this invention is that it provides a telephoto camera module and an electronic device with the telephoto camera module, wherein the telephoto camera module includes an optical path deflection element and a large-size photosensitive chip to achieve telephoto shooting, which is beneficial for achieving telephoto and large image size.

[0006] Another advantage of the present invention is that it provides a telephoto camera module and an electronic device with the telephoto camera module, wherein the telephoto camera module includes a telescopic lens and a telescopic motor that drives the telescopic lens, thereby reducing the height of the module in the non-working state so that the module can be installed in a space with limited thickness, thereby helping to overcome the problem of thickness limitation.

[0007] Another advantage of the present invention is that it provides a telephoto camera module and an electronic device with the telephoto camera module, wherein the telephoto camera module includes a module bracket, the module bracket providing a mounting reference surface for a telescopic lens, a photosensitive element and an optical path deflection element, that is, the telescopic lens, the photosensitive element and the optical path deflection element are mounted on the module bracket, which helps to improve the installation accuracy.

[0008] Another advantage of the present invention is that it provides a telephoto camera module and an electronic device with the telephoto camera module, wherein the module support of the telephoto camera module extends along the length direction parallel to the terminal device, providing a larger mounting surface area, allowing for the mounting of larger lenses and larger sensors.

[0009] Another advantage of the present invention is that it provides a telephoto camera module and an electronic device with the telephoto camera module, wherein the optical path deflection element of the telephoto camera module can be folded multiple times to achieve a longer equivalent focal length, which is beneficial to reducing the overall size.

[0010] Another advantage of the present invention is that it provides a telephoto camera module and an electronic device with the telephoto camera module, wherein the module bracket of the telephoto camera module forms a shielding component for the optical path deflection element, allowing only the incident surface and the reflecting surface to be exposed, which helps to reduce stray light.

[0011] Another advantage of the present invention is that it provides a telephoto camera module and an electronic device with the telephoto camera module, wherein the module bracket of the telephoto camera module is embedded with conductive elements to conduct motors and photosensitive components, simplifying circuit design and saving space.

[0012] According to one aspect of the present invention, a telephoto camera module of the present invention, capable of achieving the aforementioned and other objectives and advantages, includes:

[0013] Lens assembly;

[0014] Optical path deflection component;

[0015] Photosensitive components; and

[0016] A module bracket, wherein the module bracket has a first mounting surface and a second mounting surface arranged back to back, the lens assembly and the photosensitive assembly are disposed on the first mounting surface of the module bracket, and the optical path deflection assembly is disposed on the second mounting surface, wherein the optical path deflection assembly has multiple deflection optical paths, the incident light enters the optical path deflection assembly through the lens assembly, and is then deflected by the optical path deflection assembly and exits to the photosensitive assembly.

[0017] According to one embodiment of the present invention, the lens assembly includes a first lens, a second lens, a first motor for driving the first lens to move, and a second motor for driving the second lens to move. The first motor and the second motor are independent of each other and are integrated into the module bracket.

[0018] According to one embodiment of the present invention, the first lens is connected to the first motor in a driving manner. The first motor can drive the first lens to move back and forth along the light incident direction. In the non-working state, the first lens is pulled back by the first motor to reduce the overall height of the telephoto camera module. In the working state, the first lens is driven to extend by the first motor so that the optical distance between the first lens and the optical path deflection component is restored to the set value.

[0019] According to one embodiment of the present invention, the second lens is connected in a driving manner to the second motor, wherein the second motor can drive the second lens to perform AF and / or OIS movements.

[0020] According to one embodiment of the present invention, the first motor includes a motor base, a guide mechanism, and a drive mechanism, wherein the motor base is disposed on the module bracket, the guide mechanism is supported between the drive mechanism and the motor base, the drive mechanism is connected to the first lens, and the drive mechanism can drive the first lens to reciprocate along the axial direction of the guide mechanism.

[0021] According to one embodiment of the present invention, the module bracket is further provided with a light inlet and a light outlet, wherein the lens assembly corresponds to the light inlet of the module bracket, the photosensitive assembly corresponds to the light outlet of the module bracket, the incident light incident through the lens assembly enters the light path deflection assembly through the light inlet of the module bracket, and the incident light is folded by the light path deflection assembly and then exits from the light outlet to the photosensitive assembly.

[0022] According to one embodiment of the present invention, the module bracket forms a shielding component of the optical path deflection assembly.

[0023] According to one embodiment of the present invention, the module bracket further includes a first bracket unit and a second bracket unit, wherein the lens assembly is disposed in the first bracket unit, the photosensitive assembly is disposed in the second bracket unit, the light inlet is formed in the first bracket unit, and the light outlet is formed in the second bracket unit.

[0024] According to one embodiment of the present invention, the first support unit and the second support unit of the module bracket form a shielding component of the optical path deflection assembly.

[0025] According to one embodiment of the present invention, the optical path reversing assembly includes a folding bracket and an optical path reversing element disposed on the folding bracket, wherein the folding bracket has at least one light-transmitting hole, and the optical path reversing element is disposed within the folding bracket, and the optical path reversing element corresponds to the light inlet and the light outlet of the module bracket through the light-transmitting hole of the folding bracket.

[0026] According to one embodiment of the present invention, the optical path deflection element has a first surface, the first surface providing an incident portion and an exit portion, wherein a spacer portion is provided between the incident portion and the exit portion, and the spacer portion of the first surface has a light-reflecting surface, wherein the incident portion corresponds to the light inlet of the module bracket, and the exit portion corresponds to the light outlet of the module bracket.

[0027] According to one embodiment of the present invention, the spacer portion of the first surface is located between the incident portion and the exit portion, and the spacer portion of the first surface has a light-reflecting surface.

[0028] According to one embodiment of the present invention, the module bracket further includes a conductive portion, wherein the conductive portion is embedded in the module bracket, and the conductive portion is capable of conducting at least one of the first motor and the second motor of the lens assembly, as well as the photosensitive assembly.

[0029] According to one embodiment of the present invention, the second bracket unit is further provided with a mounting groove, wherein the mounting groove is formed on the first mounting surface of the module bracket, and the photosensitive component is mounted in the mounting groove of the module bracket.

[0030] According to one embodiment of the present invention, the telephoto camera module further includes an image stabilization drive mechanism, wherein the image stabilization drive mechanism is disposed in the second bracket unit of the module bracket, the photosensitive chip of the photosensitive component is disposed in the image stabilization drive mechanism, and the image stabilization drive mechanism drives the photosensitive chip to move, so as to realize the optical image stabilization of the telephoto camera module.

[0031] According to one embodiment of the present invention, the telephoto camera module further includes an image stabilization drive mechanism, wherein the image stabilization drive mechanism is disposed in the second bracket unit of the module bracket, the photosensitive chip of the photosensitive component is disposed in the image stabilization drive mechanism, and the image stabilization drive mechanism drives the photosensitive chip to move, so as to realize the optical image stabilization of the telephoto camera module.

[0032] According to another aspect of this application, this application further provides an electronic device, comprising:

[0033] The main body of the electronic device; and

[0034] At least one telephoto camera module as described above, wherein the telephoto camera module is disposed on the main body of the electronic device.

[0035] The further objects and advantages of the invention will become fully apparent from the following description and accompanying drawings.

[0036] These and other objects, features and advantages of the present invention will become fully apparent from the following detailed description and accompanying drawings. Attached Figure Description

[0037] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. In the drawings, unless otherwise specified, the same reference numerals are used to denote the same parts. Wherein:

[0038] Figure 1 is a schematic diagram of the overall structure of a telephoto camera module according to a first preferred embodiment of the present invention.

[0039] Figure 2 is a perspective cross-sectional view of the telephoto camera module according to the first preferred embodiment of the present invention.

[0040] Figure 3 is an exploded view of the telephoto camera module according to the first preferred embodiment of the present invention.

[0041] Figures 4A and 4B are schematic diagrams of the lens assembly of the telephoto camera module according to the first preferred embodiment of the present invention.

[0042] Figure 5 is a structural schematic diagram of the first lens of the lens assembly of the telephoto camera module according to the first preferred embodiment of the present invention.

[0043] Figure 6 is a schematic diagram of the optical path deflection component of the telephoto camera module according to the first preferred embodiment of the present invention.

[0044] Figure 7 is a schematic diagram of the module bracket of the telephoto camera module according to the first preferred embodiment of the present invention.

[0045] Figure 8 is a schematic diagram of the image stabilization component of the telephoto camera module according to the first preferred embodiment of the present invention. Detailed Implementation

[0046] It should be noted that the embodiments shown in the accompanying drawings are merely examples used to specifically and vividly explain and illustrate the concept of the present invention. They are not necessarily drawn to scale in terms of size and structure, nor do they constitute a limitation on the concept of the present invention.

[0047] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the various accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0048] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0049] Referring to Figures 1 to 8 of the accompanying drawings of this application, a telephoto camera module and an electronic device incorporating the telephoto camera module according to a first preferred embodiment of this application are described below. The telephoto camera module includes a lens assembly 10, a light path deflection assembly 20, a photosensitive assembly 30, and a module support 40. The lens assembly 10 and the photosensitive assembly 20 are disposed on the same side of the module support 40, and the light path deflection assembly 20 is disposed on the other side of the module support 40 opposite to the lens assembly 10 and the photosensitive assembly 30. The module support 40 of the telephoto camera module has a light-incident side and a backlight side opposite to the light-incident side. The lens assembly 10 and the photosensitive assembly 30 are located on the light-incident side of the module support 40, and the light path deflection assembly 20 is located on the backlight side of the module support 40. The optical path deflection component 20 has multiple deflection optical paths. External incident light enters the lens assembly 10 through the light-incident side, and then exits to the photosensitive assembly 30 after being deflected by the optical path deflection component 20.

[0050] The lens assembly 10, the optical path deflection assembly 20, and the photosensitive assembly 30 are mounted on both sides of the module bracket 40. The module bracket 40 provides a mounting reference surface for the lens assembly 10, the optical path deflection assembly 20, and the photosensitive assembly 30, which helps to improve the installation accuracy of the telephoto camera module.

[0051] In this preferred embodiment of the present application, the telephoto camera module is suitable for electronic devices such as mobile phones and tablets. The module bracket 40 of the telephoto camera module extends parallel to the length of the electronic device, and the module bracket 40 provides a larger mounting surface, allowing for the mounting of larger lenses and larger sensors. It is understood that in this preferred embodiment of the present application, incident light forms a folded optical path through the optical path deflection component 20 of the telephoto camera module, enabling telephoto shooting. Furthermore, it can be used with a larger image sensor, allowing the telephoto camera module to achieve telephoto shooting and acquire images with a large image area.

[0052] As shown in Figures 4A and 4B, the lens assembly 10 includes a first lens 11, a second lens 12, a first motor 13 for driving the first lens 11 to move, and a second motor 14 for driving the second lens 12 to move. The first lens 11 and the second lens 12 are stacked one after the other along the incident direction of light (Z-axis). The first lens 11 is located at the front end of the incident direction of light on the second lens 12, that is, the incident light reaches the second lens 12 after passing through the first lens 11.

[0053] The first lens 11 is connected to the first motor 13 in a driving manner. The first motor 13 can drive the first lens 11 to move back and forth along the light incident direction, that is, the first motor 13 can drive the first lens 11 to extend and retract along the light incident direction (Z-axis). The first lens 11 is a telescopic lens, which is pulled back by the first motor 13 (i.e., closer to the second lens 12) when the telephoto camera module is in the non-working state; when the telephoto camera module is in the working state, the first lens 11 is driven by the first motor 13 to extend (i.e., away from the second lens 12). Therefore, when the telephoto camera module is in the non-working state, the size of the lens assembly 10 along the Z-axis (the thickness of the electronic device) is reduced, while when the telephoto camera module is in the working state, the first lens 11 of the lens assembly 10 extends to meet the shooting requirements.

[0054] The second lens 12 is connected to the second motor 14 in a driving manner, wherein the second motor 14 can drive the second lens 12 to perform AF and / or OIS movements (which can realize lens autofocus and / or optical image stabilization functions).

[0055] Specifically, in this preferred embodiment of the application, the optical distance between the first lens 11 and the optical path deflection component 20 can be changed by the drive of the first motor 11. When the telephoto camera module is in a non-working state, the first motor 11 pulls the first lens 11 back along the Z-axis, at which time the total height of the camera module is at its minimum. The distance between the first lens 11 and the optical path deflection component 20 is at its minimum, adapting to the thickness of limited installation space, such as the thickness of a mobile phone, so as to be located inside the mobile phone. When the telephoto camera module is in a working state, the first lens 11 is driven by the first motor 13 to extend along the Z-axis direction, at which time the optical distance between the first lens 11 and the optical path deflection component 20 is changed, the distance becomes larger, so as to restore the height of the first lens 11 and restore the optical distance between the first lens 11 and the optical path deflection component 20 to the set value.

[0056] When the telephoto camera module is in the retracted state (non-working state), the total height of the telephoto camera module is lower than the height required by the optical design, so that the telephoto camera module can be assembled in a limited space; in the extended state (working state), the first lens 11 extends to return to the height of the optical design and performs normal operation to overcome the limitation of the thickness of the mobile phone.

[0057] It is worth mentioning that the first lens 11 of the lens assembly 10 is a telescopic lens, which can reduce the height of the module, i.e. the size along the Z-axis, when not in operation. It can be adapted to a large image plane and can use a larger image sensor and a larger lens.

[0058] The projection of the second lens 12 along the Z-axis falls within the projection range of the first lens 11 along the Z-axis.

[0059] The first motor 13 includes a motor base 131, a guide mechanism 132, and a drive mechanism 133. The motor base 131 is disposed on the module bracket 40. The guide mechanism 132 is supported between the drive mechanism 133 and the motor base 131. The drive mechanism 133 is connected to the first lens 11 and can drive the first lens 11 to reciprocate along the axial direction of the guide mechanism 132. The motor base 131 of the first motor 13 is disposed on the module bracket 40, and the module bracket 40 provides support for the first motor 13.

[0060] The motor base 131 has a base plate 1311 and a base through hole 1312 formed in the base plate 1311, wherein the base through hole 1312 corresponds to the first lens 11. The base plate 1311 of the motor base 131 is fixed to the module bracket 40, and the module bracket 40 fixes and supports the motor base 131 of the first motor 13, thereby providing support for the first motor 131. The guide mechanism 132 of the first motor 13 includes at least two guide rods 1321, wherein the at least two guide rods 1321 are fixed to the base plate 1311 of the motor base 131 and extend in the light incident direction along the Z-axis. The drive mechanism 133 is movably disposed on the at least two guide rods 1321 of the guide mechanism 132. When the first motor 13 drives the first lens 11 to extend or retract, the drive mechanism 133 of the first motor 13 drives the first lens 11 connected thereto to move along the axial direction of the at least two guide rods 1321 of the guide mechanism 132, thereby realizing the extension or retraction of the first lens 11.

[0061] The second lens 12 can be driven by the second motor 14 to move along the Z-axis for focusing and / or the second lens 12 can be driven by the second motor 14 to move along the XY plane for optical image stabilization. The second motor 14 is mounted on the module bracket 40, and the module bracket 40 provides support for the second motor 14. As an example, in a specific example of this application, the first motor 13 is a telescopic motor that drives the first lens 11 to extend and retract along the Z-axis, and the second motor 14 can drive the second lens 12 to move along the Z-axis to achieve focusing of the telephoto camera module, that is, the second motor 14 is an internal focusing motor.

[0062] In this preferred embodiment of the application, the first motor 13 and the second motor 14 are independent of each other. The first lens 11 can be driven by the first motor 13 to extend and retract, and the second lens 12 can be driven by the second motor 14 to focus within the lens. Furthermore, the first motor 13 and the second motor 14 are designed to be independent of each other, ensuring independence. That is, after the first lens 11 extends, the focusing stroke of the second lens 12 is restored.

[0063] The first motor 13 and the second motor 14 of the telephoto camera module are independent of each other and are integrated into the module bracket 40 to improve the integration of the camera module and save space.

[0064] The first lens 11 is supported by the first motor 13 at the front end of the second lens 12 in the direction of light incident, and the first lens 11 can be driven by the first motor 13 to move along the Z-axis, so that the total height of the telephoto camera module is reduced in the non-working state, thereby overcoming the problem of thickness limitation; while in the working state, the optical distance between the first lens 11 and the light path deflection component 20 reaches a set value.

[0065] The second motor 14 is mounted on the module bracket 40, wherein the second lens 12 can be driven by the second motor 14 for focusing. The lens assembly 10 further includes a limiting wall 15 and a lens cover 16, wherein the limiting wall 15 is disposed around the outside of the second lens 12, and is opposite to the drive mechanism 133 of the first motor 13 along the Z-axis direction, for limiting the travel of the drive mechanism 133 and preventing the first lens 11 from colliding with the second lens 12.

[0066] The lens cover 16 is installed on the outside of the first lens 11 and the second lens 12 to prevent stray light from entering and to prevent dust and other impurities from entering the lens assembly 10.

[0067] As shown in Figures 6 and 7, the module bracket 40 has a first mounting surface 401 and a second mounting surface 402, wherein the first mounting surface 401 and the second mounting surface 402 of the module bracket 40 are arranged back-to-back. The lens assembly 10 and the photosensitive assembly 30 are disposed on the first mounting surface 401 of the module bracket 40, and the optical path deflection assembly 20 is disposed on the second mounting surface 402 of the module bracket 40. The module bracket 40 further has a light inlet 403 and a light outlet 404, wherein the lens assembly 10 corresponds to the light inlet 403 of the module bracket 40, and the photosensitive assembly 30 corresponds to the light outlet 404 of the module bracket 40. Incident light entering through the lens assembly 10 enters the optical path deflection assembly 20 through the light inlet 403 of the module bracket 40, and after being folded by the optical path deflection assembly 20, the incident light exits from the light outlet 404 to the photosensitive assembly 30.

[0068] The module bracket 40 further includes a first bracket unit 41 and a second bracket unit 42, wherein the lens assembly 10 is disposed in the first bracket unit 41 and the photosensitive assembly 30 is disposed in the second bracket unit 42. A light inlet 403 is formed in the first bracket unit 41, and a light outlet 404 is formed in the second bracket unit 42. The first bracket unit 41 of the module bracket 40 extends integrally from the second bracket unit 42 along a plane perpendicular to the light incident direction, i.e., the module bracket 40 is a one-piece structure. Preferably, in this preferred embodiment of the present application, the height of the second bracket 42 is lower than the height of the first bracket unit 41, so as to reduce the shoulder height on the side where the photosensitive assembly 30 is located.

[0069] The module bracket 40 covers one side of the optical path deflection assembly 20. The light inlet 403 and light outlet 404 of the module bracket 40 allow incident light to pass through. The first bracket unit 41 and the second bracket unit 42 of the module bracket 40 form a shielding component for the optical path deflection assembly 20, preventing stray light from entering. In short, the module bracket 40 serves as a shielding component for the lens assembly 10, the optical path deflection assembly 20, and the photosensitive assembly 30, improving stray light and simplifying the surface treatment of the prism. The light inlet 403 and light outlet 404 of the module bracket 40 allow effective light to pass through, while the remaining portion blocks ineffective light, forming a light-blocking structure for the entire module.

[0070] The optical path conversion assembly 20 includes a folding bracket 21 and an optical path conversion element 22 disposed on the folding bracket 21. The folding bracket 21 has at least one light-transmitting hole 210, and the optical path conversion element 22 is disposed within the folding bracket 21. The optical path conversion element 22 corresponds to the light inlet 403 and the light outlet 404 of the module bracket 40 through the light-transmitting hole 210 of the folding bracket 21.

[0071] At least a portion of the light incident on the light path reversing component 20 is emitted from the light path reversing element 22 to the photosensitive component 30 after undergoing at least three light path reversals.

[0072] Specifically, as shown in Figure 2, the cross-section of the optical path deflection element 22 along the Z-axis is trapezoidal. The optical path deflection element 22 has a first surface 221, a second surface 222, a third surface 223, and a fourth surface 224. The first surface 221 provides an incident portion 2211 and an exit portion 2212, with a gap 2213 between the incident portion 2211 and the exit portion 2212. Incident light enters the optical path deflection element 22 through the incident portion 2211 of the first surface 221, and after reflection from the second surface 222, the third surface 223, and the fourth surface 224 of the optical path deflection element 22, it exits from the exit portion 2212 of the first surface 221 and reaches the photosensitive assembly 30.

[0073] It is understandable that the incident light incident on the optical path reversing element 22 is folded multiple times by the optical path reversing element 22, which can achieve a longer equivalent focal length, thereby ensuring the focal length and the size of the optical path. Folding the optical path can effectively reduce the size of the overall optical path.

[0074] The spacer portion 2213 of the first surface 221 is located between the incident portion 2211 and the exit portion 2212, and the spacer portion 2213 of the first surface 221 has a light-reflecting surface. It is worth mentioning that, in this preferred embodiment of the present application, the first surface 221, the second surface 222, the third surface 223, and the fourth surface 224 can be used to change the direction of light. When the incident angle of light is close to or greater than a critical angle, total internal reflection can occur. Whether the third surface produces reflection depends on whether it has sufficient length to allow light to reach the third surface.

[0075] The lens assembly 10 and the photosensitive assembly 30 are mounted on the first mounting surface 401 of the module bracket 40, and the optical path deflection assembly 20 is mounted on the second mounting surface 402 of the module bracket 40. That is, the module bracket 40 provides a mounting reference surface for the lens assembly 10, the photosensitive assembly 20 and the optical path deflection assembly 20. The first motor 13 and the second motor 14 of the lens assembly 10 are mounted and fixed based on the specific positions of the first mounting surface 401 and the second mounting surface 402 of the module bracket 40, and the first motor 13 and the second motor 14 are independent of each other. In this way, when the first motor 13 and the second motor 14 of the lens assembly 10 are integrated, the independence of the motors can be guaranteed while improving the integration level of the module. In addition, the first motor 13, the second motor 14 and the photosensitive assembly 30 are integratedly mounted on the module bracket 40. The first bracket unit 41 and the second bracket unit 42 of the module bracket 40 extend along the XY direction (the plane perpendicular to the light incident direction), which allows the use of larger lenses and larger photosensitive chips without increasing the height in the Z-axis direction. This improves the installation accuracy, reduces the assembly difficulty, and helps to reduce tolerances.

[0076] It is worth mentioning that, in this preferred embodiment of the present application, the first lens 11 and the first motor 13 that drives the first lens 11 to move are independent of the second lens 12 and the second motor 14 that drives the second lens 12 to move. Therefore, the assembly of the first lens 11 and the first motor 13 and the assembly of the second lens 12 and the second motor 14 during the installation process are also independent of each other and do not affect each other. This can reduce the difficulty of assembly and improve the accuracy of installation.

[0077] The first motor 13, the second motor 14 of the lens assembly 10, the folding bracket 21 of the optical path deflection assembly 20, and the photosensitive assembly 30 are integrated and installed based on a specific installation position preset by the module bracket 40. Compared with the periscope lens of the prior art, the lens assembly 10 of the telephoto camera module is distributed along the XY plane, changing the state of the periscope camera module distributed along the Z axis. This avoids the size limitation caused by the thickness of the mobile phone, allows for the use of a larger lens, meets the needs of a large image plane, has a larger aperture, and increases the amount of light entering the camera.

[0078] The second mounting surface 402 of the module bracket 40 is fixedly connected to the folding bracket 21 around its perimeter. The folding bracket 21 has a mounting surface surrounding its opening. The module bracket 40 is mounted to the folding bracket 21 of the optical path deflection assembly 20, wherein the mounting surface of the folding bracket 21 and the second mounting surface 402 of the module bracket 40 are fixed together. The folding bracket 21 provides a flat mounting surface that extends continuously and smoothly to improve flatness and ensure the installation accuracy and flatness of the module bracket.

[0079] The light inlet 403 of the module bracket 40 is formed on the first bracket unit 41, and the light outlet 404 is formed on the second bracket unit 42. The first bracket unit 41 forms a support structure for the lens assembly 10 around the light inlet 403, and also forms a shielding structure for the light path deflection element 22. The lens assembly 10 is fixed to the surface of the first bracket unit 41.

[0080] The module bracket 40 further includes a conductive portion 43, wherein the conductive portion 43 is embedded in the first bracket unit 41 and / or the second bracket unit 42 of the module bracket 40, and the conductive portion 43 can conduct electricity to the first motor 13, the second motor 14 and the photosensitive component 30 of the lens assembly 10. The conductive portion 43 is distributed along the module bracket 40, wherein one end of the conductive portion 43 is connected to the first motor 13 and the second motor 14, and the other end is connected to the photosensitive component 30.

[0081] Furthermore, the pins of the first motor 13 and the second motor 14 are arranged on opposite sides to save space on the same side and avoid mutual interference. The conductive part 43 is electrically connected to at least one set of pins and electrically connects the motor to the circuit board disposed on the photosensitive component 30. The conductive part 43 is embedded in the first support unit 41 to avoid the second support unit 42 being too thick and to ensure a smaller shoulder height. One end of the conductive part 43 is electrically connected to a set of pins away from the photosensitive component 30, and the other end is located on one side of the photosensitive component 30 and connected to the circuit board.

[0082] Furthermore, at least one set of pins of the first motor 13 and the second motor 14 are located on one side close to the photosensitive component 30 and are directly connected to the circuit board of the photosensitive component 30. The fact that the pins of the first motor 13 and the second motor 14 are electrically connected to the circuit board of the photosensitive component helps to reduce system complexity.

[0083] As an example, in this preferred embodiment of the application, the conductive portion 43 is embedded in the first support unit 41 and the second support unit 42 of the module bracket 40 by insert molding. Preferably, in a specific example of this application, the conductive portion 43 is embedded in the first support unit 41, and the height of the second support unit 42 is less than the height of the first support unit 41.

[0084] The second bracket unit 42 of the module bracket 40 is further provided with a mounting groove 420, wherein the mounting groove 420 is formed on the first mounting surface 401 of the module bracket 40, and the photosensitive component 30 is mounted in the mounting groove 420 of the module bracket 40. Because the mounting groove 420 of the second bracket unit 42 reduces the height (or thickness) of the second bracket unit 42, the telephoto camera module can be installed in a space with limited thickness, overcoming the problem of thickness limitation.

[0085] The photosensitive component 30 includes a photosensitive chip 31, a light filter 33, and a circuit board 32. The photosensitive chip 31 and the light filter 33 are disposed at positions corresponding to the light outlet 404 of the module bracket 40, and the light filter 33 is supported at the front end of the photosensitive chip 31 in the light incident direction. The photosensitive chip 31 is electrically connected to the circuit board 32. The photosensitive component 30 is disposed within the mounting groove 420 of the second support unit 42 of the module bracket 40, corresponding to the light outlet 404 of the module bracket 40.

[0086] Furthermore, this application provides a method for manufacturing the module bracket.

[0087] Implementation method 1: The conductive element forming the conductive part 43 is embedded inside the module bracket 40 by the insert molding process.

[0088] In this embodiment, after the module bracket 40 is manufactured, the lens assembly 10, the photosensitive assembly 30, and the optical path deflection assembly 20 are assembled onto the module bracket 40.

[0089] The module bracket 40 forms a support structure for the photosensitive component 20 around the light outlet 404, and also forms a shielding structure for the light path deflection component 20, allowing only the emission surface to be exposed. The photosensitive component 30 is fixed and supported by the second bracket unit 42 of the module bracket 40.

[0090] The module bracket 40 forms a filter mounting portion on one side of the second mounting surface 402 around the light outlet 404 to mount the filter 33. The module bracket 40 forms a chip mounting portion on one side of the first mounting surface 401 around the light outlet 404 to mount the photosensitive chip 31.

[0091] Implementation Method 2: Combining insert molding and molding processes, the module bracket 40 is molded from the circuit board 32 of the photosensitive component 30. The conductive element forming the conductive portion 43 is embedded within the module bracket 40. The module bracket 40 also provides a mounting portion for the lens assembly 10, which does not overlap with the photosensitive component 30. The photosensitive component 30, the lens assembly 10, and the optical path deflection component 20 are then assembled into the module bracket 40.

[0092] The telephoto camera module further includes an image stabilization drive mechanism 50, wherein the image stabilization drive mechanism 50 is disposed in the second support unit 42 of the module bracket 40, and the photosensitive chip 31 of the photosensitive assembly 30 is disposed in the image stabilization drive mechanism 50. The image stabilization drive mechanism 50 drives the photosensitive chip 31 to move, thereby achieving optical image stabilization of the telephoto camera module. In another optional embodiment of this application, the image stabilization drive mechanism 50 is disposed in the first support unit 41 of the module bracket 40, and the second lens 12 of the lens assembly 10 is connected to the image stabilization drive mechanism 50. The image stabilization drive mechanism 50 drives the second lens 12 to move, thereby achieving optical image stabilization of the telephoto camera module.

[0093] As an example, in a specific example of this application, the image stabilization drive mechanism 50 is disposed in the second support unit 42 for driving the photosensitive chip 31 to move in a direction perpendicular to the light incident direction to achieve optical image stabilization.

[0094] The image stabilization drive mechanism 50 includes a drive component 51, a lead frame 52, and a drive base 53. The drive component 51 and the lead frame 52 are disposed on the drive base 53, which is fixed to the second support unit 42 of the module bracket 40. The photosensitive chip 31 of the photosensitive component 30 is disposed on the lead frame 52. The drive component 51 is connected to the photosensitive chip 31 and drives the photosensitive chip 31 to move along a direction perpendicular to the optical axis of the photosensitive chip 31. When the drive component 51 drives the photosensitive chip 31 to move, the lead frame 52 provides a flexural force to the photosensitive chip 31, maintaining its movement along the direction perpendicular to the optical axis.

[0095] The driving assembly 51 is implemented as a voice coil motor, wherein the driving assembly 51 includes a movable bracket 511 and at least two driving units 512 disposed on the movable bracket 511. The driving assembly 51 is electrically connected to the circuit board 33 of the photosensitive assembly 30 to realize the electrical conduction of the at least two driving units 512. The driving units 512 provide driving force to the movable bracket 511, which in turn drives the photosensitive chip 511 to move. The at least two driving units 512 of the driving assembly 51 are disposed along the side of the movable bracket 512, and are disposed on at least two adjacent sides of the movable bracket 512. The at least two driving units 512 can drive the movable bracket 511 to move in a direction perpendicular to the optical axis (e.g., the XY plane).

[0096] The driving component 51 is disposed on the photosensitive component 30 and electrically connected to the circuit board 33 of the photosensitive component 30 to realize the electrical conduction between the driving component 51 and the photosensitive component 30.

[0097] The driving unit 512 includes at least one magnet unit 5121 and at least one coil 5122 disposed opposite to the at least one magnet unit 5121. The at least one magnet unit 5121 of the driving unit 512 is disposed on the movable bracket 511, and the at least one coil 5122 is disposed on the driving base 53; or the at least one magnet unit 5121 is disposed on the movable bracket 511, and the at least one coil 5122 is disposed on the driving base 53. When the at least one coil 5122 is electrically conductive, it generates a force with the at least one magnet unit 5121 to drive the movable bracket 511, and the movable bracket drives the photosensitive chip to move.

[0098] The drive assembly 51 further includes a ball bearing assembly 513, wherein the ball bearing assembly 513 is disposed at the bottom of the movable bracket 511 and supports the movable bracket 511 by rolling, thereby reducing the friction force when the movable bracket 511 moves.

[0099] The lead frame 52 includes a fixed part 521, a movable part 522, and a flexible part 523 connecting the fixed part 521 and the movable part 522. The movable part 522 is provided with a mounting bracket, and the photosensitive chip 31 is disposed on the mounting bracket of the movable part 522. The movable part 522 can move parallel to the photosensitive chip 31 in a direction perpendicular to the optical axis relative to the fixed part 521. During the movement, the movable part 522 is subjected to the flexible force of the flexible part 523 and maintains parallel movement.

[0100] The flexible portion 523 connects the fixed portion 521 and the movable portion 522. The flexible portion 523 further includes at least two flexible units 5231, one end of which is connected to the fixed portion 521, and the other end of which is connected to the movable portion 522. Each flexible unit 5231 further includes a first flexible segment 5232 and a second flexible segment 5233. The first flexible segment 5232 is parallel to one side (along the X direction) of the movable portion 522, and the second flexible segment 5233 is parallel to the other side (along the Y direction) of the movable portion 522.

[0101] In another optional embodiment of this application, the image stabilization drive mechanism 50 is disposed in the first support unit 41 of the module support 40, and the image stabilization drive mechanism 50 is connected to the second lens 12 to drive the second lens 12 to move along the plane perpendicular to the light incident direction in order to achieve optical image stabilization.

[0102] According to another aspect of this application, this application further provides an electronic device with the aforementioned telephoto camera module, wherein the electronic device may be, but is not limited to, a mobile phone, computer, tablet computer, or other shooting device. The electronic device includes an electronic device body (not shown in the figures) and at least one telephoto camera module disposed on the electronic device body.

[0103] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and any variations or modifications may be made to the implementation of the present invention without departing from the stated principles.

[0104] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations fall within the protection scope of this invention.

Claims

1. A telephoto camera module, characterized in that, include: Lens assembly; Optical path deflection component; Photosensitive components; as well as A module bracket, wherein the module bracket has a first mounting surface and a second mounting surface arranged back to back, the lens assembly and the photosensitive assembly are disposed on the first mounting surface of the module bracket, and the optical path deflection assembly is disposed on the second mounting surface, wherein the optical path deflection assembly has multiple deflection optical paths, the incident light enters the optical path deflection assembly through the lens assembly, and is then deflected by the optical path deflection assembly and exits to the photosensitive assembly.

2. The telephoto camera module according to claim 1, wherein the lens assembly includes a first lens, a second lens, a first motor for driving the first lens to move and a second motor for driving the second lens to move, the first motor and the second motor being independent of each other and integrated into the module bracket.

3. The telephoto camera module according to claim 2, wherein the first lens and the second lens are stacked one after the other along the incident direction of light, and the first lens is located at the front end of the second lens in the incident direction of light.

4. The telephoto camera module according to claim 3, wherein the first lens is connected to the first motor in a driving manner, the first motor can drive the first lens to move back and forth along the light incident direction, and in the non-working state, the first lens is pulled back by the first motor to reduce the overall height of the telephoto camera module; in the working state, the first lens is driven to extend by the first motor so that the optical distance between the first lens and the optical path deflection component is restored to the set value.

5. The telephoto camera module according to claim 3, wherein the second lens is connected in a driving manner to the second motor, wherein the second motor can drive the second lens to perform AF and / or OIS movements.

6. The telephoto camera module according to claim 2, wherein the first motor includes a motor base, a guide mechanism, and a drive mechanism, wherein the motor base is disposed on the module bracket, the guide mechanism is supported between the drive mechanism and the motor base, the drive mechanism is connected to the first lens, and the drive mechanism can drive the first lens to reciprocate along the axial direction of the guide mechanism.

7. The telephoto camera module according to claim 1, wherein the module bracket is further provided with a light inlet and a light outlet, wherein the lens assembly corresponds to the light inlet of the module bracket, the photosensitive assembly corresponds to the light outlet of the module bracket, the incident light incident through the lens assembly enters the light path deflection assembly through the light inlet of the module bracket, and the incident light is folded by the light path deflection assembly and then exits from the light outlet to the photosensitive assembly.

8. The telephoto camera module according to claim 7, wherein the module bracket forms a shielding component of the optical path deflection assembly.

9. The telephoto camera module according to claim 8, wherein the module bracket further includes a first bracket unit and a second bracket unit, wherein the lens assembly is disposed in the first bracket unit, the photosensitive assembly is disposed in the second bracket unit, the light inlet is formed in the first bracket unit, and the light outlet is formed in the second bracket unit.

10. The telephoto camera module according to claim 9, wherein the optical path deflection assembly includes a folding bracket and an optical path deflection element disposed on the folding bracket, wherein the folding bracket has at least one light-transmitting hole, and the optical path deflection element is disposed within the folding bracket, and the optical path deflection element corresponds to the light inlet and the light outlet of the module bracket through the light-transmitting hole of the folding bracket.

11. The telephoto camera module according to claim 10, wherein the optical path deflection element has a first surface, the first surface provides an incident portion and an exit portion, wherein a spacer portion is provided between the incident portion and the exit portion, and the spacer portion of the first surface has a light-reflecting surface, wherein the incident portion corresponds to the light inlet of the module bracket, and the exit portion corresponds to the light outlet of the module bracket.

12. The telephoto camera module according to claim 9, wherein the module bracket further includes a conductive portion, wherein the conductive portion is embedded in the module bracket, and the conductive portion is capable of conducting at least one of the first motor and the second motor of the lens assembly, and the photosensitive assembly.

13. The telephoto camera module according to claim 12, wherein the conductive part is embedded in the first bracket unit, and the height of the second bracket unit is less than the height of the first bracket unit.

14. The telephoto camera module according to claim 13, wherein the second bracket unit is further provided with a mounting groove, wherein the mounting groove is formed on the first mounting surface of the module bracket, and the photosensitive component is mounted in the mounting groove of the module bracket.

15. The telephoto camera module according to claim 9, further comprising an image stabilization drive mechanism, wherein the image stabilization drive mechanism is disposed in the second bracket unit of the module bracket, the photosensitive chip of the photosensitive component is disposed in the image stabilization drive mechanism, and the image stabilization drive mechanism drives the photosensitive chip to move, so as to achieve optical image stabilization of the telephoto camera module.

16. The telephoto camera module according to claim 9, further comprising an image stabilization drive mechanism, the image stabilization drive mechanism being disposed in the first support unit of the module bracket, the second lens of the lens assembly being connected to the image stabilization drive mechanism, the image stabilization drive mechanism driving the second lens to move, thereby achieving optical image stabilization of the telephoto camera module.

17. An electronic device, characterized in that, include: The main body of the electronic device; and At least one telephoto camera module as described in any one of claims 1 to 16, wherein the telephoto camera module is disposed on the electronic device body.

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