Lens assembly, camera module and electronic equipment

Abstract

The invention relates to the technical field of electronic equipment, and discloses a lens assembly, a camera module and electronic equipment. The lens assembly comprises a first lens assembly, a reflecting element and a second lens assembly which are sequentially arranged from the object side to the image side. The reflecting element is used for deflecting the optical axis direction of the lens assembly from the first direction to the second direction. The reflecting element is arranged opposite to the first lens assembly in the first direction, is arranged opposite to the second lens assembly in the second direction, and can reflect first light rays penetrating through the first lens assembly into second light rays emitted to the second lens assembly. The third light penetrating through the first lens assembly is reflected into fourth light reflecting back to the first lens assembly, and the first lens assembly can reflect the fourth light into fifth light reflecting towards the second lens assembly after receiving the fourth light. The lens assembly further comprises a shading structure arranged on the light path of the fifth light, and the shading structure is used for preventing the fifth light from entering the second lens assembly, so that the imaging quality of the lens assembly is effectively improved.

Description

Technical Field

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

[0002] With the continuous development of electronic devices, users have higher and higher requirements for the shooting performance of the camera modules of electronic devices. Currently, the camera modules can adopt telephoto lens assemblies to improve the shooting performance. The light emitted by the object to be photographed can be transmitted to the image sensor through the lens assembly, and then an image of the object to be photographed is formed.

[0003] The telephoto lens assembly can include multiple lens assemblies and a reflecting element. The lens assembly and the reflecting element can cooperate to adjust the propagation direction of light. For example, the light is folded to meet the actual use requirements.

[0004] However, in some technical solutions, when the light of the object to be photographed propagates in the lens assembly, unwanted light (i.e., stray light) is generated, resulting in poor imaging quality of the lens assembly. Summary of the Invention

[0005] To solve the above technical problems, this application provides a lens assembly, a camera module, and an electronic device. The following introduces this application from multiple aspects, and the implementation manners and beneficial effects of the following multiple aspects can be referred to each other.

[0006] In a first aspect of this application, a lens assembly is provided. The lens assembly includes a first lens assembly, a reflecting element, and a second lens assembly arranged in sequence from the object side to the image side. Among them, the reflecting element is used to deflect the optical axis direction of the lens assembly from a first direction to a second direction. Among them, the reflecting element is disposed opposite to the first lens assembly along the first direction and opposite to the second lens assembly along the second direction. The reflecting element can reflect the first light passing through the first lens assembly into the second light directed at the second lens assembly, and can reflect the third light passing through the first lens assembly into the fourth light directed back to the first lens assembly. After receiving the fourth light, the first lens assembly can reflect the fourth light into the fifth light directed at the second lens assembly. The lens assembly further includes a light-shielding structure, and the light-shielding structure is disposed on the optical path of the fifth light for blocking the fifth light from entering the second lens assembly.

[0007] According to the embodiment of this application, the first light and the second light can be normal lights for imaging, and the third light, the fourth light, and the fifth light can be stray lights.

[0008] In the above lens assembly, since the light-shielding structure is disposed on the optical path of the fifth light, the light-shielding structure can block the fifth light (as an example of stray light), thereby effectively improving the imaging quality of the lens assembly.

[0009] In a possible implementation of the first aspect described above, the first lens assembly includes a first lens barrel assembly and a lens disposed in the first lens barrel assembly, and a light-shielding structure is disposed on the first lens barrel assembly. Alternatively, the second lens assembly includes a second lens barrel assembly and a lens disposed in the second lens barrel assembly, and a light-shielding structure is disposed on the second lens barrel assembly.

[0010] In a possible implementation of the first aspect described above, the light-shielding structure is disposed on the first lens barrel assembly, and the first lens barrel assembly includes a lens barrel, wherein the light-shielding structure is disposed on the lens barrel.

[0011] In a possible implementation of the first aspect described above, the first lens barrel assembly includes a lens barrel and a retaining ring, and the lens of the first lens assembly is pressed and fitted in the lens barrel through the retaining ring. Wherein, the light-shielding structure is disposed on the retaining ring.

[0012] In a possible implementation of the first aspect described above, the light-shielding structure is disposed on the first lens barrel assembly. Specifically, the second lens assembly is located on one side of the first lens assembly along a first direction and on one side of the first lens assembly along a second direction. The first lens barrel assembly includes a first part and a second part disposed opposite to each other along the second direction, and the first part is closer to the second lens assembly than the second part. The light-shielding structure is disposed on the first part of the first lens barrel assembly and protrudes from the first lens barrel assembly towards the second lens assembly along the first direction. Thereby, it can block the fifth light ray, block the propagation of the fifth light ray, and further improve the imaging quality of the lens assembly.

[0013] In a possible implementation of the first aspect described above, the height at which the light-shielding structure protrudes from the first lens barrel assembly is a first height, and the first height enables the light-shielding structure not to block the second light ray, thereby effectively avoiding the light-shielding structure from affecting the normal imaging of the lens assembly.

[0014] In a possible implementation of the first aspect described above, the height at which the light-shielding structure protrudes from the first lens barrel assembly is a first height, and the first height is less than the distance between the first lens assembly and the second lens assembly along the first direction.

[0015] According to the embodiment of the present application, when the first height is less than the distance between the first lens assembly and the second lens assembly along the first direction, there is a gap between the second lens assembly and the light-shielding structure along the first direction. Therefore, the second lens assembly will not interfere with the light-shielding structure.

[0016] In a possible implementation of the first aspect described above, the light-shielding structure and the first lens barrel assembly are of an integral structure. In this way, the number of components can be effectively reduced, thereby improving the assembly efficiency and reducing the production cost.

[0017] In a possible implementation of the above first aspect, the second lens assembly can move along its optical axis direction, the light-shielding structure is provided on the first lens barrel assembly, and the light-shielding structure is a flexible structure.

[0018] According to the embodiments of the present application, when the light-shielding structure is a flexible structure, the light-shielding structure can generate a large deformation under the action of an external force and return to its initial state when the external force is removed. In this way, when the light-shielding structure is impacted by an external force, it can deform to buffer and release the force, thereby avoiding collisions with other components (for example, the second lens assembly) and causing damage.

[0019] In a possible implementation of the above first aspect, the material of the light-shielding structure includes Mylar.

[0020] In a possible implementation of the above first aspect, the incident angle of the first light ray incident on the first lens assembly is smaller than the incident angle of the third light ray incident on the first lens assembly.

[0021] According to the embodiments of the present application, the larger the incident angle of the light ray incident on the first lens assembly, the more likely it is to generate stray light. Therefore, in some embodiments of the present application, the incident angle of the first light ray incident on the first lens assembly is smaller than the incident angle of the third light ray incident on the first lens assembly.

[0022] In a possible implementation of the above first aspect, the first direction and the second direction are perpendicular to each other.

[0023] In a possible implementation of the above first aspect, the reflection element is a mirror.

[0024] The second aspect of the present application provides a camera module, which includes a photosensitive element and the lens assembly in the above first aspect and any possible implementation of the above first aspect. Among them, the photosensitive element is located on the image side of the lens assembly.

[0025] The third aspect of the present application provides an electronic device, which includes a housing and the camera module in the above second aspect. Among them, the camera module is provided on the housing.

[0026] It should be understood that the beneficial effects of the above second aspect and third aspect can refer to the description of the foregoing first aspect and will not be elaborated here. Description of the Drawings

[0027] Figure 1A Shows a perspective view of a mobile phone in an embodiment of the present application;

[0028] Figure 1B Shows an exploded view of a mobile phone in an embodiment of the present application;

[0029] Figure 2AShows a first schematic structural diagram of a camera module in an embodiment of the present application;

[0030] Figure 2B Shows a second schematic structural diagram of a camera module in an embodiment of the present application;

[0031] Figure 3A Shows a schematic structural diagram of a lens assembly in some technical solutions;

[0032] Figure 3B Shows an optical path diagram of a lens assembly in some technical solutions;

[0033] Figure 3C Shows an optical simulation diagram of stray light in some technical solutions;

[0034] Figure 4A Shows a schematic structural diagram of a lens assembly in an embodiment of the present application;

[0035] Figure 4B Shows an optical path diagram of a lens assembly in an embodiment of the present application;

[0036] Figure 5A A perspective view of a first lens assembly in an embodiment of the present application;

[0037] Figure 5B An exploded view of a first lens assembly in an embodiment of the present application;

[0038] Figure 5C In an embodiment of the present application, the first lens assembly is along Figure 5A A cross-sectional view taken along A-A in

[0039] Figure 6A Shows a schematic structural diagram of a lens assembly in some other embodiments of the present application;

[0040] Figure 6B Shows an optical path diagram of a lens assembly in some other embodiments of the present application;

[0041] Figure 7A Shows a perspective view of a first lens assembly in some other embodiments of the present application;

[0042] Figure 7B Shows an exploded view of a first lens assembly in some other embodiments of the present application;

[0043] Figure 7C Shows a first lens assembly in some other embodiments of the present application along Figure 7A A cross-sectional view taken along A-A in

[0044] Figure 8A Shows an exemplary process of deformation of a light-shielding structure in an embodiment of the present application;

[0045] Figure 8BShows the exemplary process two of the deformation of the light-shielding structure in the embodiment of the present application;

[0046] Figure 9A Shows the first dimension diagram of the height of the light-shielding structure in the embodiment of the present application;

[0047] Figure 9B Shows the second dimension diagram of the height of the light-shielding structure in the embodiment of the present application;

[0048] Figure 9C Shows the third dimension diagram of the height of the light-shielding structure in the embodiment of the present application;

[0049] Figure 10A Shows the structural diagram of the lens module in another embodiment of the present application;

[0050] Figure 10B Shows the optical path diagram of the lens module in another embodiment of the present application. Detailed implementation manners

[0051] The following will describe the detailed implementation manners of the present application with reference to the accompanying drawings.

[0052] For ease of understanding, the relevant technical terms involved in the embodiments of the present application will be explained and described below.

[0053] (1) Object side

[0054] Taking the lens as the boundary, the side where the object to be photographed is located is the object side, and the surface of the lens close to the object side is called the object side surface.

[0055] (2) Image side

[0056] Taking the lens as the boundary, the side where the image of the object to be photographed is located is the image side, and the surface of the lens close to the image side is called the image side surface.

[0057] (3) Optical axis

[0058] The optical axis can be an axis perpendicular to the center of the lens. The optical axis of the lens module can be the axis passing through the centers of the respective lenses in the lens module. The optical axis direction refers to the direction parallel to the optical axis.

[0059] (4) Focal length

[0060] Focal length, also known as focal distance, is a measure of how light converges or diverges in an optical system. It refers to the perpendicular distance from the optical center of a lens or lens assembly to the focal plane when an infinitely distant scene forms a clear image on the focal plane through the lens or lens assembly. From a practical perspective, it can be understood as the distance from the center of the lens to the plane when the object is at infinity. For a fixed-focus lens, the position of its optical center is fixed; for a zoom lens, the position of its optical center is variable, thus bringing about a change in the focal length of the lens.

[0061] (5) Focusing (or "adjusting focus")

[0062] The process of changing the distance between the lens and the imaging surface by moving one, a group, or several groups of lenses in the lens module, so that the image of the object being photographed is clear.

[0063] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0064] The embodiments of the present application provide a lens assembly, including a camera module of the lens assembly and an electronic device. Among them, the electronic device may include, but is not limited to, mobile phones, tablet computers, laptop computers, ultra-mobile personal computers (UMPCs), handheld computers, touch TVs, walkie-talkies, netbooks, POS machines, personal digital assistants (PDAs), wearable devices, virtual reality devices, intelligent vehicles, intelligent robots, industrial devices, and other electronic devices with a photographing function. For ease of description, the following takes the electronic device as a mobile phone as an example for illustration.

[0065] Figure 1A and Figure 1B shows an exemplary structure of the mobile phone 1 in the embodiments of the present application. Among them, Figure 1A is a perspective view of the mobile phone 1, Figure 1B is an exploded view of the mobile phone 1, and the assembly relationship of each component in the mobile phone 1 is shown by a dotted arrow. In each figure herein, the X-axis direction is the length direction of the mobile phone 1. For example, the positive X-axis direction is the direction from the bottom to the top of the mobile phone 1 in the normal use state; the Y-axis direction is the width direction of the mobile phone 1. For example, the positive Y-axis direction is the direction from the right side to the left side of the mobile phone 1 in the normal use state; the Z-axis direction is the thickness direction of the mobile phone 1. For example, the positive Z-axis direction is the direction from the front side to the back side of the mobile phone 1 in the normal use state. Among them, the X-axis direction, the Y-axis direction, and the Z-axis direction intersect pairwise. For example, the X-axis direction, the Y-axis direction, and the Z-axis direction may be perpendicular to each other pairwise. In the present application, the first direction may be the Z-axis direction, the second direction may be the X-axis direction, and the height dimension or thickness dimension is the dimension along the Z-axis direction, which will not be elaborated below.

[0066] In addition, it should be noted that the directional terms such as "upper", "lower", "left", "right", "front", "rear", "top", and "bottom" in this text refer to the orientation of the mobile phone 1 in the normal use state (for example, in the normal use state, the rear cover 12 described below is located on the back of the mobile phone 1), rather than indicating or implying that the components referred to must have a specific orientation, and it can change accordingly according to actual use, and should not be understood as a limitation to this application.

[0067] Combined with Figure 1A and Figure 1B , the mobile phone 1 includes a housing 10, a display screen 20, a camera module 30, and an image processor 40.

[0068] Among them, the housing 10 may include a middle frame 11 and a rear cover 12. The middle frame 11 and the rear cover 12 may be an integrally formed structure, or may form an integrated structure by assembling. The display screen 20 and the rear cover 12 are respectively installed on opposite sides of the middle frame 11, thereby jointly enclosing an accommodation cavity 13.

[0069] The camera module 30 and the image processor 40 are provided in the accommodation cavity 13. Among them, a hollow portion 14 is provided at a position corresponding to the camera module 30 in the rear cover 12. The camera module 30 can receive light outside the mobile phone 1 through the hollow portion 14 to be able to photograph an object outside the mobile phone 1. Exemplarily, the rear cover 12 may further include a light-transmitting lens (not shown). The light-transmitting lens is installed in the hollow portion 14 to play a role in waterproofing and dustproofing while allowing light to pass through.

[0070] The image processor 40 is communicatively connected to the camera module 30 to be able to obtain image data from the camera module 30 and process the image data. For example, the image processor 40 can perform optimization processing on the digital image signal and finally display the image or video through the display screen 20. Among them, the communicative connection between the image processor 40 and the camera module 30 may include data transmission through wired communication such as wiring, or may be through wireless communication such as Bluetooth. In addition, the image processor 40 may be an image processing chip or a digital signal processing chip, which is used to timely and quickly transfer the data obtained by the photosensitive chip to the central processor and refresh the photosensitive chip.

[0071] It can be understood that the above Figure 1A and Figure 1B only schematically show some structural components included inside the mobile phone 1, and the actual structure and position of these structural components are not limited by Figure 1A and Figure 1B . And, relative to Figure 1A and Figure 1BFor the structural components shown, the mobile phone 1 may also have more or fewer structural components.

[0072] For example, in some embodiments, the camera module 30 may also be installed at other positions of the housing 10. For example, the camera module 30 may be installed at the upper left corner or the upper right corner of the rear cover 12 of the housing 10. Further, the camera module 30 may also be detachably installed on the housing 10 through an auxiliary component, and the auxiliary component may rotate or translate relative to the housing 10. Further, the camera module 30 may also be a front camera, and the present application does not limit this.

[0073] Further, in some embodiments, the mobile phone 1 may further include an analog-to-digital converter (also referred to as an A / D converter). The analog-to-digital converter is connected between the camera module 30 and the image processor 40. The analog-to-digital converter is used to convert the signal generated by the camera module 30 into a digital image signal and transmit it to the image processor 40, and then the image processor 40 processes the digital image signal, and finally the image or video is displayed through the display screen 20.

[0074] Again, in some embodiments, the mobile phone 1 may further include a memory. The memory is communicatively connected to the image processor 40. After the image processor 40 processes the image digital signal, the image is transmitted to the memory, so that the image can be searched from the memory at any time when it is needed to view the image later and displayed on the display screen 20. In some embodiments, the image processor 40 also compresses the processed image digital signal and then stores it in the memory to save memory space.

[0075] Figure 2A and Figure 2B shows a schematic structural diagram of the camera module 30 in an embodiment of the present application. For easy observation, Figure 2A and Figure 2B also show partial structures of the housing 10 and the display screen 20. Referring to Figure 2A and Figure 2B and combining with Figure 1B , the camera module 30 includes a lens assembly 300, a photosensitive element 301, a filter 302, and a circuit board 303.

[0076] Among them, the lens assembly 300 may include a plurality of lens assemblies, and each lens assembly may include one or more lenses, so that imaging can be performed through the refraction principle of the lenses. That is to say, the light emitted by the object to be photographed can form a clear image on the focal plane through the lens assembly 300.

[0077] In some embodiments of the present application, the lens assembly 300 is a periscope lens, which is beneficial to the thin and light design of the mobile phone 1.

[0078] Exemplarily, the lens assembly 300 may include three lens assemblies, namely a first lens assembly 310, a second lens assembly 320, and a third lens assembly 330. The first lens assembly 310, the second lens assembly 320, and the third lens assembly 330 are arranged in sequence from the object side to the image side of the lens assembly 300. That is, the light reflected by the object to be photographed (such as light L0) will sequentially pass through the first lens assembly 310, the second lens assembly 320, and the third lens assembly 330.

[0079] In some implementations, the first lens assembly 310 and the third lens assembly 330 may be fixed assemblies for realizing the folding of the optical path. Among them, a reflection element 340 may be provided between the first lens assembly 310 and the second lens assembly 320. The reflection element 340 is used to change the propagation direction of the light emitted by the first lens assembly 310, so that the placement position, angle, and space of the lens assembly 300 are more flexible.

[0080] In some of these implementations, in order to reduce the space occupied by the reflection element, reduce the weight, and lower the manufacturing cost, a mirror may be used as the reflection element.

[0081] The second lens assembly 320 may be a focusing assembly and can move along the X-axis direction for focusing. For example, when the lens assembly 300 switches from Figure 2A the long-shot shooting mode shown to Figure 2B the close-shot shooting mode shown, the second lens assembly 320 can move in the positive X-axis direction, so that the combined focal length of the first lens assembly 310 and the second lens assembly 320 decreases, and the combined focal length of the second lens assembly 320 and the third lens assembly 330 increases.

[0082] The photosensitive element 301 (or "image sensor") is located on the image side of the third lens assembly 330 of the lens assembly 300 and is fixed to the circuit board 303. The photosensitive element 301 includes a photosensitive surface 3011. The photosensitive surface 3011 faces the lens assembly 300 and is used to receive light from the lens assembly 300 and convert the optical signal into an electrical signal. Exemplarily, the photosensitive element 301 can be a charge coupled device (CCD) or a complementary metal-oxide semiconductor device (CMOS). Among them, the charge coupled device is made of a high-sensitivity semiconductor material and can convert light into charge. The charge coupled device consists of many photosensitive units, usually in units of millions of pixels. When the surface of the charge coupled device is irradiated by light, each photosensitive unit will reflect the charge on the component, and the signals generated by all the photosensitive units are added together to form a complete picture. The complementary metal-oxide semiconductor device mainly uses semiconductors made of silicon and germanium elements, so that semiconductors with N (negatively charged) and P (positively charged) levels coexist on the complementary metal-oxide semiconductor device. The current generated by these two complementary effects can be recorded and interpreted as an image by the processing chip.

[0083] The filter 302 is located between the lens assembly 300 and the photosensitive element 301. The filter 302 is used to filter out unnecessary wavelength bands in the light to prevent the photosensitive element 301 from generating false colors or moiré patterns, so as to improve its effective resolution and color reproducibility. Exemplarily, the filter 302 can be an infrared filter. Among them, in this embodiment, the filter 302 is an independent component. In some other embodiments, the filter can also be cancelled, and the filter function can be achieved by performing surface treatment or material treatment on at least one optical element in the lens assembly 300. This application does not make specific restrictions on this.

[0084] After introducing the structure of the camera module 30, the working principle of the camera module 30 will be briefly introduced below.

[0085] Continue to refer to Figure 2A and Figure 2B and in combination with Figure 1B , the light L0 emitted by the object to be photographed located outside the mobile phone 1 (for example, Figure 2A and Figure 2BAs shown by the solid arrow in the figure, it enters the camera module 30 through the hollow part 14, and successively passes through the first lens assembly 310, the second lens assembly 320, and the third lens assembly 330 of the lens assembly 300, and then irradiates on the photosensitive surface 3011 of the photosensitive element 301. Then, the photosensitive element 301 converts the optical signal into an electrical signal and transmits the electrical signal to an analog-to-digital converter (not shown). Then, the analog-to-digital converter converts the electrical signal into a digital image signal and transmits the digital image signal to the image processor 40. Finally, the image processor 40 processes the digital image signal, and finally the image or video is displayed through the display screen 20.

[0086] In some technical solutions, when the reflecting element is a reflecting mirror, the reflecting element reflects the light emitted from the first lens assembly back to the first lens assembly, and then the first lens assembly reflects the light reflected by the reflecting element, thereby forming stray light, which in turn affects the imaging quality of the lens assembly. The following will introduce in detail with the exemplary structures of the first lens assembly and the reflecting element in the lens assembly.

[0087] Figure 3A The structural schematic diagram of the lens assembly 300' in some technical solutions is shown. Refer to Figure 3A , in some technical solutions, the lens assembly 300' includes a first lens assembly 310', a second lens assembly 320', and a third lens assembly 330' arranged in sequence from its object side to its image side. Among them, along the optical path of the lens assembly 300', a reflecting element 340' is further provided between the first lens assembly 310' and the second lens assembly 320'.

[0088] Among them, the optical axis direction of the first lens assembly 310' is the Z-axis direction. The optical axis direction of the second lens assembly 320' is the X-axis direction. Both the first lens assembly 310' and the second lens assembly 320' have positive optical power. That is, the first lens assembly 310' and the second lens assembly 320' have positive focal lengths and can converge light. The reflecting element 340' is arranged opposite to the first lens assembly 310' along the Z-axis direction and opposite to the second lens assembly 320' along the X-axis direction. The reflecting element 340' is a reflecting mirror.

[0089] Figure 3BThe optical path diagram of the lens assembly 300' is shown. Among them, for the convenience of observation, the area enclosed by two dotted-line arrows shows the optical path area of the normal light (i.e., the light for imaging), and the two dotted-line arrows are the normal light L1a' and the normal light L1b' at two extreme positions respectively. The area enclosed by two solid-line arrows shows the optical path area of the stray light (i.e., the light that is not expected to appear), and the two solid-line arrows are the stray light rays L2a' and the light ray L2b' at two extreme positions respectively. For the convenience of description, the propagation path of the normal light is introduced below taking the light ray L1a' as an example, and the propagation path of the stray light is introduced taking the light ray L2a' as an example.

[0090] Exemplarily, as Figure 3B shown, the light ray L1a' for imaging can pass through the first lens assembly 310' and reach the reflection element 340', and then be reflected by the reflection element 340' to the second lens assembly 320', and sequentially pass through the second lens assembly 320' and the third lens assembly 330', and irradiate onto the photosensitive element 301, thereby forming an optical image of the object to be photographed.

[0091] However, in some cases, when the light ray is incident on the first lens assembly 310' at a specific angle, stray light will be formed in the lens assembly 300', thereby affecting the imaging quality of the lens assembly 300'. For example, Figure 3C shows the optical simulation diagram of the stray light in some technical solutions. Combining Figure 3B and Figure 3C , the light ray L2a' is incident on the first lens assembly 310' at an angle θ 0 and passes through the first lens assembly 310' and shoots towards the reflection element 340'. At this time, the reflection element 340' can reflect the light ray L2a' from the first lens assembly 310' back to the first lens assembly 310'. Then, the first lens assembly 310' will reflect the light ray L2a' to the second lens assembly 320'. Then, the light ray L2a' sequentially passes through the second lens assembly 320' and the third lens assembly 330', and finally irradiates onto the photosensitive element 301 and forms a stray light image P0, thereby affecting the imaging quality of the lens assembly 300'.

[0092] To solve the above problems, an embodiment of the present application provides a lens assembly. Compared with the lens assembly of the above technical solution, the lens assembly provided by the present application can effectively prevent the light reflected by the first lens assembly from entering the second lens assembly by arranging a light-shielding structure between the first lens assembly and the second lens assembly, thereby blocking the stray light optical path and further improving the imaging quality of the lens assembly.

[0093] The technical solution of the present application will be introduced in detail below with reference to the drawings.

[0094] Figure 4AThe structural schematic diagram of the lens assembly 300 in the embodiment of the present application is shown. Figure 4B The optical path diagram of the lens assembly 300 in the embodiment of the present application is shown. Refer to Figure 4A and Figure 4B The lens assembly 300 includes a first lens assembly 310, a second lens assembly 320, a reflection element 340, and a light-shielding structure 350. Among them, the first lens assembly 310, the reflection element 340, and the second lens assembly 320 are arranged in sequence from the object side to the image side.

[0095] Among them, the optical axis direction of the first lens assembly 310 can be the Z-axis direction. That is to say, the optical axis O1 of the first lens assembly 310 is parallel to the Z-axis direction. Exemplarily, the first lens assembly 310 can be used to converge light.

[0096] The optical axis direction of the second lens assembly 320 can be the X-axis direction. That is to say, the optical axis O2 of the second lens assembly 320 is parallel to the X-axis direction. Along the Z-axis direction, the second lens assembly 320 is located on the first side S1 of the first lens assembly 310 (that is, the side of the first lens assembly 310 facing the negative direction of the Z-axis). And, along the X-axis direction, the second lens assembly 320 is located on the second side S2 of the first lens assembly 310 (that is, the side of the first lens assembly 310 facing the negative direction of the X-axis). Exemplarily, the second lens assembly 320 can also be used to converge light.

[0097] The reflection element 340 is used to deflect the optical axis direction of the lens assembly 300 from the Z-axis direction to the X-axis direction. That is to say, the optical axis of the lens assembly 300 includes a first part from the first lens assembly 310 to the reflection surface of the reflection element 340 along the Z-axis direction (that is, the optical axis O1), and a second part from the reflection surface of the reflection element 340 to the second lens assembly 320 along the X-axis direction (that is, the optical axis O2).

[0098] Figure 4A and Figure 4B In the example shown, the optical axis O2 is deflected 90° relative to the optical axis O1. In other examples, the optical axis O2 can also be deflected by other angles relative to the optical axis O1, for example, 60°, 110°, etc.

[0099] Specifically, the reflection element 340 is disposed between the first lens assembly 310 and the second lens assembly 320 along the optical path of the lens assembly 300. For example, the reflection element 340 is disposed opposite to the first lens assembly 310 in the Z-axis direction and opposite to the second lens assembly 320 in the X-axis direction. The reflection element 340 can reflect a part of the light from the first lens assembly 310 to the second lens assembly 320 (this part of the light can be referred to as "normal light" or "first light", such as light rays L1a and L1b), and can reflect another part of the light from the first lens assembly 310 back to the first lens assembly 310 (this part of the light can be referred to as "stray light" or "third light", such as light rays L2a and L2b). After receiving this part of the light, the first lens assembly 310 can reflect this part of the light towards the second lens assembly 320. Among them, the propagation optical path of this part of the light after being reflected by the first lens assembly 310 is the first optical path W1. Exemplarily, the reflection element 340 can be a mirror.

[0100] The light-shielding structure 350 is disposed on the first optical path W1. The light-shielding structure 350 is used to block the first lens assembly 310 from reflecting the stray light along the first optical path W1 to the second lens assembly 320.

[0101] Exemplarily, Figure 4B The area enclosed by two dotted arrows in the figure shows the optical path area of the normal light for imaging. The two dotted arrows are the normal light rays L1a and L1b at two extreme positions respectively. The area enclosed by the arrows mixed with two solid lines and dotted lines shows the optical path area of the stray light. The two solid-line and dotted-line arrows are the stray light rays L2a and L2b at two extreme positions respectively. Among them, the solid-line part is the actual existing part of the light rays L2a and L2b, and the dotted-line part is the blocked part of the light rays L2a and L2b. For the convenience of description, the propagation path of the normal light is introduced below by taking the light ray L1a as an example, and the propagation path of the stray light is introduced by taking the light ray L2a as an example.

[0102] Reference Figure 4B , first, the propagation path of the normal light ray L1a is introduced. For the convenience of understanding, different propagation segments of the light ray L1a are respectively marked as the light ray L11 (as an example of the first light) and the light ray L12 (as an example of the second light).

[0103] Among them, the light ray L11 passes through the first lens assembly 310 and is incident on the reflection element 340. Then, the reflection element 340 reflects the light ray L11 into the light ray L12. The light ray L12 is reflected by the reflection element 340 to the second lens assembly 320 and passes through the second lens assembly 320 and finally irradiates onto the photosensitive element 301 to form an optical image of the object to be photographed.

[0104] Next, the propagation path of the stray light ray L2a will be introduced. For ease of understanding, different propagation segments of the ray L2a are respectively marked as ray L21 (as an example of the third ray), ray L22 (as an example of the fourth ray), and ray L23 (as an example of the fifth ray).

[0105] Among them, the ray L21 passes through the first lens assembly 310 and is incident on the reflection element 340. Then, the reflection element 340 reflects the ray L21 into the ray L22. The ray L22 is reflected back by the reflection element 340 to the first lens assembly 310. Next, the first lens assembly 310 reflects the ray L22 into the ray L23. The optical path of the ray L23 is the first optical path W1. Therefore, the light-shielding structure 350 can block the ray L23, thereby blocking the propagation of the ray L23 and further improving the imaging quality of the lens assembly 300.

[0106] For the above lens assembly 300, since the light-shielding structure 350 is disposed on the first optical path W1, the light-shielding structure 350 can block stray light, and thus, while the lens assembly 300 realizes the imaging function, the imaging quality can be effectively improved.

[0107] It can be understood that the larger the incident angle of the ray incident on the first lens assembly 310, the more likely stray light is generated. Therefore, in some embodiments of the present application, the incident angle of the ray L1a incident on the first lens assembly 310 is smaller than the incident angle of the ray L2a incident on the first lens assembly 310.

[0108] Next, the specific structure and setting manner of the light-shielding structure 350 in the lens assembly 300 will be further introduced with reference to the drawings.

[0109] In an implementable solution, the first lens assembly 310 includes a first lens barrel assembly and a first lens. The first lens and the light-shielding structure are disposed on the first lens barrel assembly.

[0110] The following introduces Example Method 1 of setting the light-shielding structure on the first lens barrel assembly. In this example, the light-shielding structure is disposed on the first lens barrel of the first lens barrel assembly.

[0111] For ease of description, before introducing the specific setting manner of the light-shielding structure 350, the specific structure of the first lens assembly 310 will be introduced with reference to the drawings.

[0112] Figures 5A to 5C The structural schematic diagram of the first lens assembly 310 in this example is shown, where Figure 5A is the perspective view of the first lens assembly 310, Figure 5B is the exploded view of the first lens assembly 310, Figure 5C is the first lens assembly 310 along Figure 5A the sectional view taken along A-A in Figures 5A to 5Cin combination with Figure 4A and Figure 4B , the first lens assembly 310 includes a first lens barrel assembly 311 and a first lens 312. The number of the first lenses 312 can be one or more.

[0113] Among them, the first lens barrel assembly 311 includes a first lens barrel 313 and a first retaining ring 314. Among them, the first lens barrel 313 includes a lens barrel body 315 and a supporting portion 316. The lens barrel body 315 is a ring structure, including a first part 315a, a second part 315b, a third part 315c, and a fourth part 315d. Among them, the first part 315a and the second part 315b are arranged away from each other along the X-axis direction. And, along the X-axis direction, the first part 315a is closer to the second lens assembly 320 than the second part 315b. The third part 315c and the fourth part 315d are arranged away from each other along the Y-axis direction. The first part 315a, the third part 315c, the second part 315b, and the fourth part 315c are connected end to end in sequence to jointly form a "mouth"-shaped ring structure. The supporting portion 316 and the first retaining ring 314 are also ring structures. It can be understood that the ring structures of the supporting portion 316 and the first retaining ring 314 are substantially the same as the ring structure of the above-mentioned first lens barrel 313, so the description about the first lens barrel 313 can be referred to and will not be elaborated here.

[0114] The supporting portion 316 and the first retaining ring 314 are respectively arranged on opposite sides of the first lens 312 along the Z-axis direction, and jointly enclose an installation space 317 for installing the first lens 312 with the lens barrel body 315. After the first lens 312 is installed in the installation space 317, the lens barrel body 315 surrounds the outer peripheral surface of the first lens 312 and the outer peripheral surface of the first retaining ring 314, and the supporting portion 316 and the first retaining ring 314 are respectively located on the object side and the image side of the first lens 312. Among them, the first retaining ring 314 is fixedly connected to the lens barrel body 315 (for example, bonding, clamping, welding, or fastener connection, etc.), and the first retaining ring 314 presses the first lens 312 on the supporting portion 316 of the first lens barrel 313, thereby realizing the installation of the first lens 312.

[0115] Among them, by pressing the first lens 312 in the first lens barrel 313 through the first retaining ring 314, the problem that the first lens 312 is deformed due to direct bonding between the first lens 312 and the first lens barrel 313 can be effectively avoided, and the installation effect is good. In addition, the ring-shaped supporting portion 316 and the first retaining ring 314 can effectively avoid blocking the light outside the first lens assembly 310 from entering the first lens 312 while playing the role of fixing the first lens 312.

[0116] The light-shielding structure 350 is disposed on the first part 315a of the first lens barrel 313. Along the Z-axis direction, the light-shielding structure 350 can protrude from the first lens barrel 313 toward the second lens assembly 320, so as to block the light L23, interrupt the propagation of the light L23, and thereby improve the imaging quality of the lens assembly 300.

[0117] The following introduces the second example method of setting the light-shielding structure on the first lens barrel assembly. In this example, the first lens barrel assembly includes a first lens barrel and a first retaining ring, and the first lens is pressed into the first lens barrel through the first retaining ring. Among them, the light-shielding structure is disposed on the first retaining ring of the first lens barrel assembly.

[0118] Figure 6A The schematic structural diagram of the lens assembly 300 in another example is shown. Figure 6B The optical path diagram of the lens assembly 300 in another example is shown. Figures 7A to 7C The schematic structural diagram of the first lens assembly 310 in another example is shown, where Figure 7A is the perspective view of the first lens assembly 310, Figure 7B is the exploded view of the first lens assembly 310, Figure 7C is along the Figure 7A A-A sectional view in

[0119] Combined with Figures 6A to 7C , the specific structural form of the first lens assembly 310 can refer to the description of the first lens assembly 310 above, which will not be elaborated here. Figures 5A to 5C

[0120] In this example, the light-shielding structure 350 can be disposed on the first part 314a of the first retaining ring 314. For example, along the Z-axis direction, the light-shielding structure 350 can protrude from the first retaining ring 314 toward the second lens assembly 320. Similarly, it can block the light L23, interrupt the propagation of the light L23, and thereby improve the imaging quality of the lens assembly 300.

[0121] In some embodiments of the present application, the light-shielding structure 350 can be a rigid structure. Exemplarily, the light-shielding structure 350 and the first lens barrel assembly 311 are an integral structure. For example, when the light-shielding structure 350 is disposed on the first lens barrel 313 of the first lens barrel assembly 311, the light-shielding structure 350 and the first lens barrel 313 can be an integral structure. Another example is that when the light-shielding structure 350 is disposed on the first retaining ring 314 of the first lens barrel assembly 311, the light-shielding structure 350 and the first retaining ring 314 can be an integral structure. This can effectively reduce the number of components, thereby improving the assembly efficiency and reducing the production cost.

[0122] ​Alternatively, in other alternative embodiments, the light-shielding structure 350 and the first lens barrel assembly 311 may also be a split structure. The light-shielding structure 350 is connected to the first lens barrel assembly 311 by means of bonding, snap connection, welding, or connection with fasteners, etc., and the present application does not make specific limitations thereto.

[0123] In some other embodiments of the present application, the light-shielding structure 350 may be a flexible structure. That is to say, the light-shielding structure 350 can generate a large deformation under the action of an external force and return to its initial state when the external force is removed. In this way, when the light-shielding structure 350 is impacted by an external force, it can deform to buffer and release the force, thereby avoiding collisions with other components (for example, the second lens assembly 320) and causing damage.

[0124] Exemplarily, Figure 8A and Figure 8B show an exemplary process of the deformation of the light-shielding structure 350 in the embodiments of the present application. Refer to Figure 8A and Figure 8B , in some implementation manners, the second lens assembly 320 can move along the X-axis direction for focusing. When the lens assembly 300 is impacted by an external force, the second lens assembly 320 will Figure 8A slide from the position shown in Figure 8B to the position shown in Figure 8B along the X-axis direction. At this time, the light-shielding structure 350 will deform and will not have a hard impact with the second lens assembly 320, thereby avoiding the problem of damage to the light-shielding structure 350 and the second lens assembly 320 due to collision, and further effectively improving the drop reliability of the lens assembly 300. When the second lens assembly 320 returns from the position shown in Figure 8A to the position shown in Figure 8B along the X-axis direction, the light-shielding structure 350 can return from the state shown in Figure 8A to the state shown in

[0125] to be able to play a role in blocking stray light.

[0126] It can be understood that the above Figures 5A to 5C and Figures 7A to 7COnly the structural form of the first lens barrel assembly 311 is schematically shown, but the present application is not limited thereto. For example, in this embodiment, the first lens barrel assembly 311 includes a first lens barrel 313 and a first retaining ring 314. In some other embodiments, the first lens barrel assembly 311 may also have other structural forms. For example, the first lens barrel assembly 311 may not include the first retaining ring 314, and the first lens 312 may be directly fixed (e.g., directly bonded) in the first lens barrel 313. In this embodiment, the light shielding structure 350 may be provided on the first lens barrel 313. The specific implementation manner in which the light shielding structure 350 is provided on the first lens barrel 313 may refer to Figures 5A to 5C and its related description, which will not be elaborated herein.

[0127] It can also be understood that the above Figures 5A to 5C and Figures 7A to 7C Only the structural shape of the light shielding structure 350 provided on the first lens barrel assembly 311 is schematically shown, but the present application is not limited thereto. For example, in this embodiment, the light shielding structure 350 extends in the Y-axis direction and is generally similar to a straight line shape. In some other embodiments, the shape of the light shielding structure 350 may also be arc-shaped. In some other embodiments, the shape of the light shielding structure 350 may also be annular, and the annular light shielding structure 350 may be sleeved on the outer peripheral surface of the first lens barrel 313, or provided between the inner peripheral surface of the first lens barrel 313 and the outer peripheral surface of the first retaining ring 314.

[0128] In addition, in some embodiments of the present application, the cross-sectional shape of the light shielding structure 350 includes but is not limited to trapezoid, rectangle, triangle or other irregular shapes. The present application does not limit this, as long as it can block stray light.

[0129] In some embodiments of the present application, the light shielding structure 350 may be provided on the surface of the first lens barrel assembly 311 facing the first side S1 (i.e., the side of the first lens barrel assembly 311 facing the negative Z-axis direction). For example Figure 5C as shown, when the light shielding structure 350 is provided on the first lens barrel 313 of the first lens barrel assembly 311, the light shielding structure 350 may be provided on the surface of the first lens barrel 313 facing the first side S1. Another example Figure 7C as shown, when the light shielding structure 350 is provided on the first retaining ring 314 of the first lens barrel assembly 311, the light shielding structure 350 may be provided on the surface of the first retaining ring 314 facing the first side S1.

[0130] Based on this, while the light shielding structure 350 plays a role in blocking stray light, it can also achieve size reuse with the first lens barrel assembly 311 in the X-axis direction, thereby reducing the size space occupied by the light shielding structure 350 in the X-axis direction.

[0131] Further, in some implementations, along the Z-axis direction, the projection area of the first lens barrel assembly 311 can cover the projection area of the light-shielding structure 350, so as to further reduce the size space occupied by the light-shielding structure 350 in the X-axis direction.

[0132] Continue to refer to Figure 5C and Figure 7C , in some embodiments of the present application, when the light-shielding structure 350 is provided on the first lens barrel assembly 311, the light-shielding structure 350 protrudes toward the first side S1 relative to the first lens barrel assembly 311. Wherein, the height of the light-shielding structure 350 protruding relative to the first lens barrel assembly 311 is the first height H 0 . That is to say, the light-shielding structure 350 protrudes along the negative Z-axis direction relative to the first lens barrel assembly 311 by the first height H 0 . At this time, along the Z-axis direction, there is a height difference between the surface of the light-shielding structure 350 facing the first side S1 and the surface of the first lens barrel assembly 311 facing the first side S1, and this height difference is the first height H 0 .

[0133] The following introduces the exemplary setting method of the first height H of the light-shielding structure 350 in combination with the accompanying drawings 0 of the light-shielding structure 350.

[0134] Figures 9A to 9C shows the size schematic diagram of the first height H 0 of the light-shielding structure 350 in the embodiments of the present application. Refer to Figures 9A to 9C , the first height H 0 If it is too small, the shielding structure 350 cannot completely block the light L23; the first height H 0 If it is too large, it will block the propagation of the light L12, resulting in failure to image. In addition, when the second lens assembly 320 moves along the X-axis direction, the second lens assembly 320 will also collide with the shielding structure 350.

[0135] Therefore, in the embodiments of the present application, by setting the first height H0, the light-shielding structure 350 can block the light L23 without blocking the light L12.

[0136] The following introduces the exemplary setting method of the first height H0 in combination with the light L12 and the light L23.

[0137] Refer to Figure 9A , the light-shielding structure 350 can block the light L23, thereby improving the imaging effect. Therefore, in some embodiments of the present application, the first height H0 and the first dimension H f1 of the light L23 satisfy the following relational formula:

[0138] H 0 > Hf1 (1)

[0139] In formula (1), the first dimension H f1 is the distance from the intersection point P1 between the light ray L23 and the light-shielding structure 350 to the surface of the first lens barrel assembly 311 facing the first side S1 (hereinafter referred to as the "bottom surface"). The first dimension H f1 can be calculated based on the optical parameters of the light ray L23 (such as the incident angle, reflection angle, etc.) and the structural parameters of the first lens barrel assembly 311 (such as the dimension of the first lens barrel assembly 311 in the X-axis direction and the dimension in the Z-axis direction, etc.).

[0140] Exemplarily, when the first height H 0 is 4 mm, the corresponding first dimension H of the light ray L23 f1 can be set to 2 mm, so that the light ray L23 can be blocked by the light-shielding structure 350, thereby improving the imaging effect.

[0141] Reference Figure 9B , the light-shielding structure 350 may not block the light ray L12, thus avoiding affecting normal imaging. Therefore, in some embodiments of the present application, the first height H 0 and the second dimension H of the light ray L12 f2 satisfy the following relationship:[[]]

[0142] H 0 ≤H f2 (2)

[0143] In formula (2), the second dimension H f2 is the distance from the intersection point P2 between the light ray L12 and the extension line of the light-shielding structure 350 in the Z-axis direction to the bottom surface of the first lens barrel assembly 311.

[0144] Exemplarily, reference Figure 9B , when the first height H 0 is 4 mm, the corresponding second dimension H of the light ray L12 f2 can be set to 6 mm, so that the light-shielding structure 350 does not overlap with the optical path of the light ray L12, that is, the light ray L12 does not interfere with the light-shielding structure 350, thereby avoiding the problem of abnormal imaging.

[0145] In some of these implementation manners, the second dimension H f2 can be obtained based on the following method:[[]]

[0146] First, according to the principle of similar triangles, the following relationship can be obtained:[[]]

[0147]

[0148] In formula (3), H L1is the distance from the intersection point P3 of the light ray L12 and the reflection element 340 to the optical axis O2 of the second lens assembly 320; H L2 is the distance from the intersection point P4 of the light ray L12 and the lens of the second lens assembly 320 to the optical axis O2 of the second lens assembly 320; H L3 is the distance between the point P2 and the optical axis O2 of the second lens assembly 320; D1 is the distance from the point P3 to the optical axis O1 of the first lens assembly 310; D2 is the distance between the intersection point P5 of the optical axis O1 of the first lens assembly 310 and the optical axis O2 of the second lens assembly 320 and the point P4 in the X-axis direction; D3 is the distance between the point P2 and the point P4 in the X-axis direction.

[0149] Then, based on Equation (3), the following relational expression can be obtained:

[0150]

[0151] H f2 and H L3 satisfy the following relational expression:

[0152] H f2 = H 2 - H L3 (5)

[0153] In Equation (5), H 2 is the distance from the bottom surface of the first lens barrel assembly 311 to the optical axis O2 of the second lens assembly 320. Based on this, H f2 can be calculated according to the above Equations (3) to (5).

[0154] Alternatively, to prevent the light-shielding structure 350 from blocking the light ray L12, in some other embodiments of the present application, the parameters of the light-shielding structure 350 and the light ray L12 may satisfy the following relational expression:

[0155] H 1 ≥ H L3 (6)

[0156] In Equation (6), H 1 is the distance from the bottom surface of the light-shielding structure 350 to the optical axis O2 of the second lens assembly 320.

[0157] Exemplarily, referring to Figure 9B , when H 1 is 10 mm, the corresponding H L3 can be set to 8 mm, so that the light ray L12 does not interfere with the light-shielding structure 350, avoiding the problem of abnormal imaging.

[0158] Referring to Figure 9C, the second lens assembly 320 can move along the X-axis direction for focusing. During the movement of the second lens assembly 320 along the X-axis direction, the light-shielding structure 350 will not collide with the second lens assembly 320. Therefore, in some embodiments of the present application, the first height H0 and the parameters of the second lens assembly 320 satisfy the following relational expression:

[0159] H 0 <G 1 (7)

[0160] In formula (7), G1 is the distance between the first lens assembly 310 and the second lens assembly 320 along the Z-axis direction.

[0161] Exemplarily, referring to Figure 9C , when the first height H 0 is 4 mm, the corresponding gap G1 can be set to 5 mm, so that there is a gap between the second lens assembly 320 and the light-shielding structure 350 along the Z-axis direction. Therefore, when the second lens assembly 320 moves along the X-axis direction, it will not interfere with the light-shielding structure 350.

[0162] In some of these implementation manners, the gap G1 can be calculated based on the following formula.

[0163] G 1 =H 2 -H 3 (8)

[0164] In formula (8), H 2 is the distance from the bottom surface of the first lens barrel assembly 311 to the optical axis O2 of the second lens assembly 320; H 3 is the distance from the outer peripheral surface of the second lens assembly 320 to the optical axis O2 of the second lens assembly 320.

[0165] Alternatively, to avoid the light-shielding structure 350 from colliding with the second lens assembly 320, in some other embodiments of the present application, the parameters of the light-shielding structure 350 and the second lens assembly 320 can also satisfy the following relational expression:

[0166] H 1 >H 3 (9)

[0167] In formula (9), H 1 is the distance from the bottom surface of the light-shielding structure 350 to the optical axis O2 of the second lens assembly 320.

[0168] Exemplarily, referring to Figure 9C , in H 1When it is 10 mm, the corresponding H3 can be set to 9 mm, so that there is a gap between the second lens assembly 320 and the light-shielding structure 350 in the Z-axis direction. Therefore, when the second lens assembly 320 moves in the X-axis direction, it will not interfere with the light-shielding structure 350.

[0169] It can be understood that Figures 9A to 9C the dimensional parameters in are only illustrative. In other embodiments, they can be set to other dimensional parameters according to actual needs.

[0170] In the above embodiment, the light-shielding structure is arranged on the first lens barrel assembly. In another feasible solution, the second lens assembly 320 includes a second lens barrel assembly and a second lens. The light-shielding structure 350 is arranged on the second lens barrel assembly. Figure 10A FIG. shows a schematic structural diagram of the lens assembly 300 in another embodiment of the present application. Figure 10B FIG. shows an optical path diagram of the lens assembly 300 in another embodiment of the present application.

[0171] Referring to Figure 10A and Figure 10B , when the light-shielding structure 350 is arranged on the second lens barrel assembly 321 of the second lens assembly 320, it can also block the light L23, thereby blocking the propagation of the light L23, and further improving the imaging quality of the lens assembly 300.

[0172] The setting method and its deformation method of the light-shielding structure 350 on the second lens barrel assembly 321 of the second lens assembly 320 are substantially the same as the setting method and its deformation method of the light-shielding structure 350 on the first lens barrel assembly 311 of the first lens assembly 310. Therefore, reference can be made to the relevant descriptions of the first lens assembly 310 and the setting method of the light-shielding structure 350 in the first lens assembly 310 above.

[0173] For example, the second lens barrel assembly 321 includes a second lens barrel, and the light-shielding structure 350 can be arranged on the second lens barrel of the second lens barrel assembly 321. The implementation method of arranging the light-shielding structure 350 on the second lens barrel of the second lens barrel assembly 321 is substantially the same as the implementation method of arranging the light-shielding structure 350 on the first lens barrel 313 of the first lens barrel assembly 311.

[0174] Another example is that the second lens assembly 320 can include a second retaining ring, and the light-shielding structure 350 can also be arranged on the second retaining ring of the second lens assembly 320. The implementation method of arranging the light-shielding structure 350 on the second retaining ring of the second lens barrel assembly 321 is substantially the same as the implementation method of arranging the light-shielding structure 350 on the first retaining ring 314 of the first lens barrel assembly 311.

[0175] For another example, the light-shielding structure 350 is a rigid structure. The light-shielding structure 350 and the second barrel assembly 321 of the second lens assembly 320 can be an integral structure, etc., which will not be elaborated one by one here.

[0176] The above specific embodiments illustrate the implementation manners of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Although the description of the present application will be introduced in combination with some embodiments, this does not mean that the features of this application are limited to this implementation manner. On the contrary, the purpose of introducing the application in combination with the implementation manner is to cover other alternatives or modifications that may be extended based on the claims of the present application. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscuring the key points of the present application, some specific details are omitted in the description. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0177] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "arranged", "installed", "connected", and "fitted" 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 application can be understood according to specific situations.

[0178] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these changes and modifications.

Claims

1. A lens assembly, characterized in that, it includes a first lens assembly, a reflecting element, and a second lens assembly arranged in sequence from the object side to the image side, and the reflecting element is used to deflect the optical axis direction of the lens assembly from a first direction to a second direction; wherein, the reflecting element is oppositely arranged with the first lens assembly along the first direction and is oppositely arranged with the second lens assembly along the second direction. The reflecting element can reflect the first light passing through the first lens assembly into the second light directed towards the second lens assembly, and can reflect the third light passing through the first lens assembly into the fourth light directed back to the first lens assembly. After receiving the fourth light, the first lens assembly can reflect the fourth light into the fifth light directed towards the second lens assembly; the lens assembly further includes a light-shielding structure, and the light-shielding structure is arranged on the optical path of the fifth light to block the fifth light from entering the second lens assembly.

2. The lens assembly according to claim 1, characterized in that, the first lens assembly includes a first lens barrel assembly and a lens disposed in the first lens barrel assembly, and the light-shielding structure is arranged on the first lens barrel assembly; or, the second lens assembly includes a second lens barrel assembly and a lens disposed in the second lens barrel assembly, and the light-shielding structure is arranged on the second lens barrel assembly.

3. The lens assembly according to claim 2, characterized in that, the light-shielding structure is arranged on the first lens barrel assembly, and the first lens barrel assembly includes a lens barrel, wherein the light-shielding structure is arranged on the lens barrel.

4. The lens assembly according to claim 3, characterized in that, the first lens barrel assembly includes a lens barrel and a retaining ring, and the lens of the first lens assembly is pressed in the lens barrel through the retaining ring; wherein, the light-shielding structure is arranged on the retaining ring.

5. The lens assembly according to claim 2, characterized in that, the light-shielding structure is arranged on the first lens barrel assembly; the second lens assembly is located on one side of the first lens assembly along the first direction and is located on one side of the first lens assembly along the second direction; the first lens barrel assembly includes a first part and a second part arranged opposite to each other along the second direction, and the first part is closer to the second lens assembly than the second part; the light-shielding structure is arranged on the first part of the first lens barrel assembly and protrudes from the first lens barrel assembly towards the second lens assembly along the first direction.

6. The lens assembly according to claim 5, characterized in that, the height of the light-shielding structure protruding from the first lens barrel assembly is a first height, and the first height enables the light-shielding structure not to block the second light.

7. The lens assembly according to claim 5, characterized in that, the height of the light-shielding structure protruding from the first lens barrel assembly is a first height, and the first height is less than the distance between the first lens assembly and the second lens assembly along the first direction.

8. The lens assembly according to any one of claims 3 to 7, characterized in that, The light-shielding structure and the first lens barrel assembly are of an integral structure.

9. The lens assembly according to any one of claims 3 to 7, wherein, the second lens assembly is movable along its optical axis direction, the light-shielding structure is disposed on the first lens barrel assembly, and the light-shielding structure is a flexible structure.

10. The lens assembly according to claim 9, wherein, the material of the light-shielding structure includes mylar.

11. The lens assembly according to any one of claims 1 to 10, wherein, the incident angle of the first light ray incident on the first lens assembly is smaller than the incident angle of the third light ray incident on the first lens assembly.

12. The lens assembly according to any one of claims 1 to 11, wherein, the first direction and the second direction are perpendicular to each other.

13. The lens assembly according to any one of claims 1 to 12, wherein, the reflection element is a reflector.

14. A camera module, wherein, it includes a photosensitive element and the lens assembly according to any one of claims 1 to 13, and the photosensitive element is located on the image side of the lens assembly.

15. An electronic device, wherein, it includes a housing and the camera module according to claim 14, and the camera module is disposed on the housing.

Images