Lens module and electronic equipment

Abstract

The embodiment of the utility model provides a lens module and electronic equipment, relates to the technical field of cameras, and aims to reduce the size of the lens module. The lens module comprises a lens barrel and a plurality of lenses. The plurality of lenses are located in the lens cone, and the lens with the largest radial size in the plurality of lenses is the first lens. The first lens comprises an optical effective part and a non-optical effective part, and the non-optical effective part is arranged on the periphery of the optical effective part in a surrounding mode. The image side surface of the first lens is a convex surface, and the maximum width of the non-optical effective part is 0.2 mm to 0.4 mm. Or, the image side surface of the first lens is a concave surface, and the maximum width of the non-optical effective part is 0.1 mm to 0.2 mm. According to the lens module provided by the embodiment of the invention, aiming at different conditions that the image side surface is a convex surface or a concave surface, the size of the non-optical effective part of the lens with the largest radial size in the lens module is limited and reduced, so that the lens is ensured to be supported during installation, and the size of the radial section of the lens of the lens module can be correspondingly reduced.

Description

Technical Field

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

[0002] For electronic devices such as smartphones and smartwatches, miniaturization is the development trend for cameras to meet the portability and aesthetic requirements of these devices. Cameras can serve as front-facing, main, telephoto, and wide-angle lenses for electronic devices. Taking the front-facing camera in a smartphone as an example, both the size of the lens itself and the size of the lens motor used for focusing affect the size of the front-facing camera module. Increasing the size of the front-facing camera module in the X or Y direction will result in an increase in the screen cutout size, affecting the screen's visual effect.

[0003] Therefore, how to reduce the size of the lens module is an urgent problem to be solved. Utility Model Content

[0004] This application provides a lens module and an electronic device, the main purpose of which is to reduce the size of the lens module.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, embodiments of this application provide a lens module, which includes a lens barrel and multiple lens elements. All lens elements are located within the lens barrel, and the lens element with the largest radial dimension is the first lens element. For example, the multiple lens elements can be arranged sequentially along the optical axis. Alternatively, the lens barrel can surround the outer periphery of the multiple lens elements.

[0007] In this embodiment, the first lens includes an optically effective portion and a non-optically effective portion, with the non-optically effective portion surrounding the outer periphery of the optically effective portion. For example, the outer contour of the optically effective portion includes an arc, the diameter of which may be the aspheric effective diameter of the first lens.

[0008] In the embodiments of this application, the image-side surface of the first lens is convex, and the maximum width of the non-optically effective portion is 0.2 mm to 0.4 mm. Alternatively, the image-side surface of the first lens is concave, and the maximum width of the non-optically effective portion is 0.1 mm to 0.2 mm. For example, a convex image-side surface of the first lens can mean that the entire image-side surface of the first lens bulges towards the image side. As another example, a concave image-side surface of the first lens can mean that the entire image-side surface of the first lens is recessed relative to the image side.

[0009] The lens module provided in some embodiments of the first aspect limits the size of the non-optically effective part of the first lens element for different cases where the image side is convex or concave, ensuring that the non-optically effective part can serve as a support for lens mounting. Furthermore, since the first lens element has the largest radial dimension in the lens module, reducing the radial dimension of the first lens element allows for a corresponding reduction in the outer contour dimensions of the lens barrel and other components in the lens module, such as the lens motor and base, thereby helping to reduce the size of the lens module in the radial cross-section of the lens element.

[0010] In conjunction with the first aspect, in one possible implementation, the optical effective part and the non-optical effective part are in a circular arc transition, with the radius of the arc being 0.03 mm to 0.05 mm.

[0011] In this implementation, the use of arc transition and the setting of a corresponding arc radius, or in other words, the setting of rounded corners on the surface of the adjacent boundary between the optical effective part and the non-optical effective part and the setting of a corresponding rounded corner size, can help ensure the optical performance of the first lens.

[0012] In conjunction with the first aspect, in one possible implementation, the lens module further includes a reinforcing rib connected to the lens barrel and arranged in a ring within the lens barrel. For example, the reinforcing rib may be made of metal, and both the reinforcing rib and the lens barrel may be injection molded from metal.

[0013] In this implementation, the use of a ring-shaped reinforcing rib in the lens barrel reduces or avoids deformation during the lens barrel injection molding process, which helps to ensure the roundness and coaxiality of the lens barrel surrounding the lens, thereby enabling the lens barrel to be further thinned, and thus reducing the size of the lens module in the radial cross section of the lens.

[0014] In conjunction with the first aspect, in one possible implementation, the first lens is the lens closest to the image side among a plurality of lenses.

[0015] In this implementation, the first lens, having the largest radial dimension among the multiple lenses, is closest to the image side, which helps reduce distortion and aberrations in the lens module's imaging. Furthermore, the first lens is closest to the base within the lens module, and the outer contour dimension of the base is related to the radial dimension of the first lens; reducing the radial dimension of the first lens facilitates a corresponding reduction in the outer contour dimension of the base.

[0016] In conjunction with the first aspect, in one possible implementation, the non-optical effective part is bonded to the lens barrel.

[0017] In this implementation, by bonding the first lens element to the lens barrel, multiple lenses can be installed inside the lens barrel. For example, if the first lens element has the largest radial dimension among the multiple lenses and is also the lens element closest to the image side, then the first lens element can be used as the last lens element installed into the lens barrel. By bonding it to the lens barrel, the remaining lenses are encapsulated inside the lens barrel. This eliminates the need for structural components used to encapsulate the lenses, reducing the size of the lens module. It also reduces lens movement within the lens barrel, improving the stability of the lenses encapsulated in the lens barrel. This helps to further reduce the structural strength requirements of the lens barrel, thereby enabling a reduction in the size of the lens barrel.

[0018] In conjunction with the first aspect, in one possible implementation, the lens module also includes a base, the outer contour of which includes a first straight line segment. For example, the outer contour of the base can be a quadrilateral or a square.

[0019] In this implementation, the outer contour of the first lens includes a connected arc segment and a second straight segment. The arc segment is located in the non-optically effective part, and the second straight segment is at least partially located in the non-optically effective part. The first straight segment is parallel to the second straight segment.

[0020] In this implementation, the outer contour of the first lens has a second straight line segment. For example, the first lens can be obtained by cutting a circular lens, so that the outer contour of the first lens has a second straight line segment. This can further reduce the radial dimension of the lens while minimizing or eliminating the impact on the optical performance of the lens. For example, the second straight line segment of the outer contour of the first lens can be an inward design relative to the circle. The first straight line segment and the second straight line segment in the outer contour of the base are parallel, which allows the outer contour dimension of the base to decrease as the radial dimension of the first lens shrinks.

[0021] In conjunction with the first aspect, in one possible implementation, there are multiple second straight line segments and multiple arc segments, with adjacent arc segments connected by a second straight line segment.

[0022] In this implementation, it is helpful to shrink the radial dimension of the first lens from multiple radial directions, and also to shrink the outer contour dimension of the base from multiple radial directions of the first lens.

[0023] In conjunction with the first aspect, in one possible implementation, the outer contour of the base is a quadrilateral. For example, the outer contour of the base can be a quadrilateral or a square.

[0024] In this implementation, there are four straight segments and four arc segments, with the central angle of the arc segments ranging from 20° to 90°. Therefore, given that the base is quadrilateral, the first lens is cut along its four sides, reducing the dimensionality of the first lens and the base in multiple radial directions. This also facilitates the placement of four drive units at the four corners of the base without increasing the size of the lens module.

[0025] In conjunction with the first aspect, in one possible implementation, the lens module further includes a driving unit, which comprises a first structural component and a second structural component. The first structural component is connected to the base, and the second structural component is connected to the lens barrel.

[0026] In this implementation, the first structural component includes a coil, and the second structural component includes a magnet. Alternatively, the first structural component includes a magnet, and the second structural component includes a coil. Therefore, the second structural component can be directly connected to the lens barrel; for example, the lens barrel can be used as a motor carrier, achieving integration of the lens barrel and the motor carrier. By eliminating the motor carrier component, the integration level of the lens module is improved, which can help further reduce the size of the lens module.

[0027] In conjunction with the first aspect, in one possible implementation, the minimum distance between the coil and the magnet is 0.1 mm to 0.2 mm.

[0028] In this implementation, since the coil and magnet are typically arranged radially along the lens, the size of the lens module along the lens radially can be further reduced by limiting the minimum distance between the coil and magnet.

[0029] In conjunction with the first aspect, in one possible implementation, the base is provided with a mounting hole. The lens barrel is located within and connected to the mounting hole. For example, the mounting hole can be a blind hole.

[0030] In this implementation, the base also includes a groove. The outer contour of the base further includes a third straight segment, which connects to the first straight segment. The outer contour of the lens barrel has an arc segment, and the groove is located within the area enclosed by the first straight segment, the third straight segment, and the arc segment of the outer contour of the lens barrel. The first structural member is located within the groove and connected to it. Thus, the straight segment of the outer contour of the base forms a corner, the groove of the base is located within the area between this corner and the outer contour of the lens barrel in the radial section of the lens, and the first structural member is located within the groove. This allows for full utilization of the unused area in the lens module to accommodate the drive unit, which helps to further reduce the size of the lens module.

[0031] Secondly, embodiments of this application provide an electronic device, which includes: a housing, such as the lens module in any of the above embodiments. The housing and the lens barrel are connected.

[0032] Unless otherwise specified, the technical effects of the design methods in the second aspect can be found in the technical effects of the different design methods in the first aspect, and will not be repeated here. Attached Figure Description

[0033] Figure 1 This is a structural diagram of an electronic device 01 provided in an embodiment of this application;

[0034] Figure 2 A structural diagram of a lens module 20 provided in an embodiment of this application;

[0035] Figure 3 for Figure 2 A cross-sectional view of the lens module 20 provided in the embodiment along the AA' direction;

[0036] Figure 4 A planar sectional view of a first lens along the AA' direction provided for an embodiment of this application;

[0037] Figure 5 A planar sectional view of another first lens provided in an embodiment of this application;

[0038] Figure 6 A structural diagram of a reinforcing rib provided in an embodiment of this application;

[0039] Figure 7 for Figure 2 A planar sectional view of the lens barrel along the BB' direction in the illustrated embodiment;

[0040] Figure 8 A structural diagram of another lens module 20 provided in the embodiments of this application;

[0041] Figure 9 for Figure 8 A cross-sectional view of the lens module 20 provided in the embodiment along the CC' direction;

[0042] Figure 10 A structural diagram of a first lens provided in an embodiment of this application;

[0043] Figure 11 For example Figure 10 A contour fit diagram of the first lens and the base in the illustrated embodiment;

[0044] Figure 12 A structural diagram of another first lens provided in an embodiment of this application;

[0045] Figure 13 For example Figure 12 A contour fit diagram of the first lens and the base in the illustrated embodiment;

[0046] Figure 14A structural diagram of yet another first lens provided in an embodiment of this application;

[0047] Figure 15 For example Figure 14 A contour fit diagram of the first lens and the base in the illustrated embodiment;

[0048] Figure 16 for Figure 8 A partial planar cross-sectional view of the lens module 20 provided in the illustrated embodiment along the CC' direction;

[0049] Figure 17 An installation location diagram of a drive unit provided for an embodiment of this application;

[0050] Figure 18 A contour mating diagram of a lens barrel 210 and a base 240 provided for an embodiment of this application;

[0051] Figure 19 A planar sectional view of a carrier for a first lens provided in an embodiment of this application.

[0052] Explanation of reference numerals in the attached figures:

[0053] 01-Electronic device; 11-Cover plate; 12-Display screen; 13-Middle frame; 15-Rear shell; 16-Printed circuit board; 20-Lens module; 210-Lens barrel; 220-Lens lens; 221-First lens lens; 230-Reinforcing rib; 2211-Optical effective part; 2212-Non-optical effective part; 240-Base; 241-Bottom; 242-Housing; 243-Mounting hole; 244-Groove; 261-Image sensor; 262-Flexible circuit board; 270-Drive unit; 271-First structural component; 272-Second structural component; 30-Carrier; 31-Vacuum channel; S1-First straight segment; S2-Second straight segment; S3-Third straight segment; S4-Fourth straight segment; S5-Fifth straight segment; ARC-Transition arc; R1-Rounded corner; C1-First arc segment; C2-Second arc segment. Detailed Implementation

[0054] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0055] In the description of the embodiments of this application, unless otherwise stated, "a plurality of" means two or more.

[0056] Furthermore, to facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0057] In the embodiments of this application, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner to facilitate understanding.

[0058] In describing some embodiments, the term "connection" and its derivative expressions are used. The term "connection" should be interpreted broadly; for example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0059] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0060] In the embodiments of this application, "upper", "lower", "left" and "right" are not limited to the orientation of the components in the accompanying drawings. It should be understood that these directional terms can be relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0061] In the accompanying drawings, the thickness of some layers or regions has been selectively exaggerated for clarity, and the dimensional proportions between the portions shown do not reflect actual dimensional proportions. Therefore, variations in shape relative to the drawings are conceivable due to factors such as manufacturing techniques and / or tolerances. Consequently, exemplary embodiments should not be construed as limited to the shapes of the regions shown in this application, but rather include shape deviations caused, for example, by manufacturing processes.

[0062] Unless otherwise specified, any numerical range "numerical value M to numerical value M'" expressed in the embodiments of this application may include both numerical value M and numerical value M'.

[0063] This application provides an electronic device, which may be, for example, a mobile phone, a tablet computer, a smart wearable product (e.g., a smartwatch, a smart bracelet), an extended reality (XR) device, a personal digital assistant (PDA), or other different types of user devices or terminal devices. This application does not impose any special limitations on the specific form of the electronic device. In the embodiments of this application, the electronic device may be a foldable device or a non-foldable device.

[0064] For ease of explanation, we will use a mobile phone as an example below.

[0065] Figure 1 This is a structural diagram of an electronic device 01 provided in an embodiment of this application.

[0066] like Figure 1 As shown in the figure, this application embodiment provides an electronic device 01, which includes a cover plate 11, a display screen 12, a middle frame 13, and a rear cover 15. The rear cover 15 is also called a rear cover. The rear cover 15 and the display screen 12 are located on opposite sides of the middle frame 13, and the middle frame 13 and the display screen 12 are disposed inside the rear cover 15. The cover plate 11 is disposed on the side of the display screen 12 away from the middle frame 13, and the display surface of the display screen 12 faces the cover plate 11.

[0067] For ease of description, the thickness direction of the display screen 12 is defined as the Z direction; in other words, the back cover 15 and the display screen 12 are stacked along the Z direction. In embodiments where the display screen 12 is a curved screen, the planar portion of the display screen 12 can be perpendicular to the Z direction. The directions in which the light-emitting surface of the display screen 12 extends can also be defined as the X and Y directions, with the X, Y, and Z directions being perpendicular to each other.

[0068] In this embodiment, the outline shape of the cover plate 11 can match the outline shape of the display screen 12. For example, the outer outline of the cover plate 11 can be square. The cover plate 11 can be a glass cover plate, or it can be replaced with a cover plate made of other materials, such as an ultra-thin glass cover plate, a polyethylene terephthalate (PET) cover plate, etc.

[0069] In some embodiments, a user can interact with the electronic device 01 via the cover plate 11 or the display screen. Exemplarily, the cover plate 11 or the display screen can receive user input operations and, in response to the input operations, make corresponding outputs. For example, the user can select (or otherwise open) or edit the graphic by touching or pressing a graphic location on the display screen.

[0070] For example, the electronic device 01 also includes a printed circuit board 16. The printed circuit board 16 may be disposed between the rear housing 15 and the display screen 12. The printed circuit board 16 may be made of a flame-retardant material (FR-4) dielectric substrate, a Rogers dielectric substrate, a hybrid dielectric substrate of Rogers and FR-4, etc. Here, FR-4 is a designation for a flame-retardant material grade, and a Rogers dielectric substrate is a high-frequency board. Electronic components, such as radio frequency chips, are mounted on the printed circuit board 16.

[0071] In some embodiments, electronic device 01 also has an image acquisition function, such as Figure 1 As shown, the electronic device 01 also includes a lens module 20. The lens module 20 is used to acquire images. The lens module 20 is connected to the mid-frame 13 or the rear cover 15.

[0072] In some embodiments, the lens module 20 may be a front-facing camera, i.e., the object side of the lens module 20 is located on the light-emitting side of the display screen 12. In some embodiments, the lens module 20 may be a rear-facing camera, i.e., the object side of the lens module 20 is located on the light-receiving side of the display screen 12.

[0073] In this application embodiment, the object side and the image side can have the following definitions:

[0074] Object side: The side where the subject is located is the object side, with the optical lens as the boundary. The side of the lens or optical element facing the object side is the object side surface.

[0075] Image side: The side where the image of the subject is located, with the optical lens as the boundary. The side of a lens or optical element that faces the image side is the image-side surface.

[0076] For example, such as Figure 1As shown, taking the lens module 20 as a front-facing camera as an example, the image side is the side pointing in the Z direction, and the object side is the side pointing in the opposite Z direction. Taking the lens module 20 as a rear-facing camera as an example, the image side is the side pointing in the opposite Z direction, and the object side is the side pointing in the Z direction.

[0077] This application uses the lens module 20 as an example to illustrate the embodiments.

[0078] The existing lens module 20 has relatively large dimensions in the X and Y directions. For example, the dimension in the X direction is greater than 9.76 mm, the dimension in the Y / 2 direction is greater than 4.15 mm, and the dimension in the Y direction is greater than 8.97 mm, which needs to be further reduced. The lens module 20 provided in this application embodiment can effectively reduce the dimensions of the lens module 20 in the X and Y directions.

[0079] Figure 2 This is a structural diagram of a lens module 20 provided in an embodiment of this application.

[0080] This application provides a lens module 20, such as Figure 2 As shown, the lens module 20 includes a lens barrel 210 and multiple lens elements 220.

[0081] Figure 3 for Figure 2 The illustrated embodiment provides a cross-sectional view of the lens module 20 along the AA' direction.

[0082] In the embodiments of this application, such as Figure 3 As shown, multiple lenses 220 are located inside the lens barrel 210, and the lens 220 with the largest radial dimension among the multiple lenses 220 is the first lens 221.

[0083] In this embodiment, the radial direction of the lens 220 and the axial direction of the lens 220 can be perpendicular to each other. For example, the axial direction of the lens 220 can be the optical axis direction of the lens 220. For instance, the optical axis can refer to the center line of a light beam passing through the lens 220, or it can refer to the central axis of symmetry of the circular lens 220, or it can refer to the center line of the spherical or cylindrical surface of the lens 220.

[0084] For example, multiple lenses 220 can be arranged sequentially along the optical axis of the lens 220. For instance, multiple lenses 220 can be arranged sequentially from the object side to the image side along the optical axis of the lens 220.

[0085] In some examples, the concave-convex directions of multiple lenses 220 can be the same. For example Figure 3 As shown, multiple lenses 220 can all bulge towards the image side. Alternatively, multiple lenses 220 can all be recessed towards the image side.

[0086] For example, the lens barrel 210 may surround the outer periphery of the plurality of lenses 220. For example, any lens 220 may also extend beyond the lens barrel 210. This embodiment of the application does not limit whether the lens barrel 210 completely covers each lens 220.

[0087] In some alternative embodiments, such as Figure 3 As shown, multiple lenses 220 can be arranged sequentially from the object side to the image side along the optical axis of the lens 220, and the first lens 221 is the lens 220 closest to the image side among the multiple lenses 220.

[0088] In this embodiment, the first lens 221, being the lens 220 with the largest radial dimension among the plurality of lenses 220, is closest to the image side, which helps reduce distortion and aberrations in the imaging of the lens module 20. Furthermore, among the plurality of lenses 220, the first lens 221 is closest to the base in the lens module 20. The outer contour dimension of the base is related to the radial dimension of the first lens 221; reducing the radial dimension of the first lens 221 allows for a corresponding reduction in the outer contour dimension of the base.

[0089] Figure 4 A planar sectional view of a first lens 221 along the AA' direction, provided for an embodiment of this application.

[0090] In the embodiments of this application, such as Figure 4 As shown, the first lens 221 includes an optically effective part 2211 and a non-optically effective part 2212, with the non-optically effective part 2212 surrounding the outer periphery of the optically effective part 2211.

[0091] For example, the optical effective portion 2211 may protrude toward the image side. Or, for example, the optical effective portion 2211 may be recessed toward the image side.

[0092] In the embodiments of this application, the optical effective portion 2211 can refer to a specific area in the center of the first lens 221 that allows light to pass through, located in the middle region of the first lens 221. The radial dimension of the optical effective portion 2211 can be the aspherical optical effective diameter of the first lens 221.

[0093] In some examples, the outer contour of the optically effective portion 2211 includes an arc segment. For example, the first lens 221 can be a circular lens 220, and the arc segment can be an arc, the diameter of which can be the aspheric effective diameter of the first lens 221. Alternatively, the first lens 221 can also be a non-circular lens 220, such as an ellipse, and the arc segment can be an elliptical arc, the minor axis or major axis of which can be the aspheric effective diameter of the first lens 221, depending on the primary direction of light transmission.

[0094] In some examples, the non-optical effective part 2212 may be the opto-mechanical design part of the first lens 221.

[0095] For example, the non-optical effective portion 2212 is ring-shaped and has an annular plane facing the image side or the object side.

[0096] In the embodiments of this application, such as Figure 4 As shown, the image side of the first lens 221 is convex, and the maximum width of the non-optical effective part 2212 is W1.

[0097] For example, the image-side surface of the first lens 221 is convex, which can mean that the entire image-side surface of the optical effective part 2211 convexes towards the image side.

[0098] Figure 5 A planar cross-sectional view of another first lens 221 provided in an embodiment of this application.

[0099] In the embodiments of this application, the image-side surface of the first lens 221 is concave, such as... Figure 5 As shown, the maximum width of the non-optical effective part 2212 is W2.

[0100] For example Figure 5 As shown, the image-side surface of the first lens 221 is concave, which can mean that the entire image-side surface of the optical effective part 2211 is concave relative to the image side.

[0101] For example, the maximum width W1 or W2 of the non-optical effective portion 2212 may refer to the radial dimension of the image-side surface of the non-optical effective portion 2212 along the first lens 221.

[0102] In one embodiment provided in this application, W1>W2.

[0103] The carrier 30 for the first lens 221 often needs to adsorb the image-side surface of the non-optical effective portion 2212 of the first lens 221 in order to install the first lens 221 into the lens barrel 210 from the image side. This avoids contamination of the surface of the non-optical effective portion 2212 of the first lens 221, and the image-side surface of the non-optical effective portion 2212 can be a ring-shaped plane, which also facilitates adsorption by the carrier 30.

[0104] If the image-side surface of the first lens 221 is convex, the carrier 30 of the first lens 221 needs to avoid the optically effective part 2211. However, if the image-side surface of the first lens 221 is concave, the carrier 30 of the first lens 221 does not need to avoid the optically effective part 2211. Therefore, when the image-side surface of the first lens 221 is convex, compared to when the image-side surface of the first lens 221 is concave, the carrier 30 has a greater difficulty in adsorbing the non-optically effective part 2212, and therefore the maximum width W1 of the non-optically effective part 2212 is greater than W2.

[0105] In one embodiment provided in this application, such as Figure 4 As shown, the image side of the first lens 221 is convex, and the maximum width W1 of the non-optical effective part 2212 is 0.2 mm to 0.4 mm.

[0106] For example, the maximum width of the non-optical effective portion 2212 may include, but is not limited to, one of 0.2mm, 0.25mm, 0.3mm, 0.35mm, and 0.4mm.

[0107] In another embodiment provided in the embodiments of this application, such as Figure 5 As shown, the image side of the first lens 221 is concave, and the maximum width W2 of the non-optical effective part 2212 is 0.1 mm to 0.2 mm.

[0108] For example, the maximum width of the non-optical effective portion 2212 may include, but is not limited to, one of 0.1mm, 0.12mm, 0.15mm, 0.18mm, and 0.2mm.

[0109] Through the above embodiments, the size of the non-optical effective portion 2212 of the first lens 221 is limited to accommodate different cases where the image side is convex or concave, ensuring that the non-optical effective portion 2212 can serve as a support for mounting the lens 220. Furthermore, since the first lens 221 is the lens 220 with the largest radial dimension in the lens module 20, reducing the radial dimension of the first lens 221 allows for a corresponding reduction in the outer contour dimensions of the lens barrel 210 and other components in the lens module 20, such as the lens motor and the base. This, in turn, helps to reduce the size of the lens module 20 in the radial cross-section of the lens 220.

[0110] In some alternative embodiments, the lens module 20 may also include an annular element located between the base and the plurality of lenses 220, such that the plurality of lenses 220 are encapsulated within the lens barrel 210.

[0111] In some alternative embodiments, the non-optical effective portion 2212 is bonded to the lens barrel 210 to encapsulate a plurality of lenses 220 within the lens barrel 210.

[0112] In some examples, among the multiple lenses 220, the first lens 221 is closest to the image side, and the surface of the non-optically effective portion 2212 of the first lens 221 facing the other lenses 220 can be bonded to the lens barrel 210.

[0113] For example, the surface of the non-optical effective part 2212 of the first lens 221 facing the other lenses 220 is an annular plane. The surface of the non-optical effective part 2212 of the first lens 221 facing the other lenses 220 can be bonded to the lens barrel 210 in an annular manner or in a dotted manner.

[0114] In some other examples, the outer edge of the non-optical effective portion 2212 of the first lens 221 can be bonded to the lens barrel 210.

[0115] In some optional embodiments, the non-optical effective part 2212 may also be bonded to an adjacent lens 220, the outer edge of which may also be bonded to the lens barrel 210.

[0116] In this embodiment, by bonding the first lens 221 to the lens barrel 210, multiple lenses 220 can be installed inside the lens barrel 210. For example, if the first lens 221 is the lens 220 with the largest radial dimension among the multiple lenses 220, and is also the lens 220 closest to the image side among the multiple lenses 220, then the first lens 221 can be used as the last lens 220 installed into the lens barrel 210. By applying adhesive to the lens barrel 210, the first lens 221 is bonded to the lens barrel 210, and the remaining lenses 220 are encapsulated inside the lens barrel 210. This eliminates the need for structural components (such as the annular component in the above embodiment) used to encapsulate the lenses 220, reducing the size of the lens module 20, and also reduces the movement of the lenses 220 inside the lens barrel 210, improving the stability of the lenses 220 encapsulated in the lens barrel 210. This helps to further reduce the structural strength requirements of the lens barrel 210, thereby enabling a reduction in the size of the lens barrel 210.

[0117] In some alternative embodiments, the circumferential edge of the optical effective portion 2211 used for connection with the non-optical effective portion 2212 may be provided with redundant dimensions. In related technologies, the molding process of the lens 220 often results in irregular shapes of the circumferential edge of the optical effective portion 2211, thereby affecting the optical performance of the lens 220. Therefore, the provision of redundant dimensions can mitigate the aforementioned effects.

[0118] In some alternative embodiments, such as Figure 4As shown, the actual radial dimension of the optical effective part 2211 can be the sum of the required radial dimension and the width W3 of the redundant dimension design. For example, if the required radial effective dimension of the optical effective part 2211 of the lens 220 is 8 mm and the width W3 of the redundant dimension design is 0.1 mm, then the radial effective dimension of the optical effective part 2211 can be set to 8.2 mm.

[0119] In some alternative embodiments, such as Figure 4 As shown, the optical effective part 2211 and the non-optical effective part 2212 are transitioned by an arc, and the radius of the transition arc ARC is 0.03 mm to 0.05 mm. For example, the radius of the transition arc ARC may include, but is not limited to, one of 0.03 mm, 0.04 mm, 0.45 mm, 0.05 mm, and 0.06 mm.

[0120] Alternatively, the surfaces of the adjacent boundaries between the optical effective portion 2211 and the non-optical effective portion 2212 are provided with a fillet R1, the size of which is 0.03 mm to 0.05 mm. For example, the size of the fillet R1 may include, but is not limited to, one of 0.03 mm, 0.04 mm, 0.45 mm, 0.05 mm, and 0.06 mm.

[0121] The use of transition arc ARC in the above embodiments helps to ensure the optical performance of the optical active part 2211 and reduces the redundant size design of the circumferential edge of the optical active part 2211.

[0122] In some examples, the required radial dimension of the optical effective part 2211 is 5 mm to 8 mm, so the width W3 of the redundant dimension design can be reduced to 0.03 mm to 0.06 mm. For example, the width of the forming ring can be, but is not limited to, one of 0.03 mm, 0.04 mm, 0.05 mm, 0.055 mm, and 0.06 mm.

[0123] In some other examples, if the required radial dimension of the optical effective part 2211 is greater than 8 mm, the width W3 of the redundant dimension design can be reduced to 0.06 mm to 0.15 mm. For example, the width of the forming ring can be, but is not limited to, one of 0.06 mm, 0.08 mm, 0.10 mm, 0.12 mm, or 0.15 mm.

[0124] In this embodiment, an arc transition is used between the optical effective part 2211 and the non-optical effective part 2212, and a corresponding arc radius is set. This allows for the reduction of the molding redundancy around the outer edge of the optical effective part 2211 while ensuring the optical performance of the first lens 221. Therefore, by reducing the molding redundancy around the outer edge of the optical effective part 2211, the radial dimension of the first lens 221 can be reduced. Since the first lens 221 has the largest radial dimension among the multiple lenses 220, reducing its radial dimension allows for a corresponding reduction in the dimensions of components such as the lens barrel 210 and the base 240 in the lens module 20 that are assembled with the first lens 221 in the X and Y directions.

[0125] Figure 6 This is a structural diagram of a reinforcing rib 230 provided in an embodiment of this application.

[0126] In some alternative embodiments, such as Figure 6 As shown, the lens module 20 also includes a reinforcing rib 230.

[0127] Figure 7 for Figure 2 A planar sectional view of the lens barrel 210 along the BB' direction in the illustrated embodiment.

[0128] In the embodiments of this application, such as Figure 7 As shown, the reinforcing rib 230 is connected to the lens barrel 210, and the reinforcing rib 230 is arranged in a ring inside the lens barrel 210.

[0129] In some examples, the reinforcing rib 230 is disposed within the wall of the lens barrel 210, which surrounds the outer circumference of the lens 220. Exemplarily, the thickness of the reinforcing rib 230 is less than the thickness of the wall of the lens barrel 210 surrounding the outer circumference of the lens 220 along the radial direction of the first lens 221.

[0130] For example, the material of the reinforcing rib 230 may include metal, and the material of the lens barrel 210 may include plastic. The reinforcing rib 230 and the lens barrel 210 may be formed by metal injection molding.

[0131] In this embodiment, the reinforcing ribs 230 arranged in a ring in the lens barrel 210 reduce or avoid deformation during the injection molding process of the lens barrel 210, which helps to ensure the roundness and coaxiality of the lens barrel 210 surrounding the lens 220, thereby enabling the lens barrel 210 to be further thinned, thereby reducing the size of the lens module 20 in the radial section of the lens 220.

[0132] Figure 8 This is a structural diagram of another lens module 20 provided in an embodiment of this application.

[0133] In some alternative embodiments, such as Figure 8 As shown, the lens module 20 also includes a base 240, the outer contour of which includes a first straight line segment S1. For example, the first straight line segment S1 may extend along the X direction. Alternatively, the outer contour of the base 240 may include at least one first straight line segment S1.

[0134] Figure 9 for Figure 8 The illustrated embodiment provides a cross-sectional view of the lens module 20 along the CC' direction.

[0135] For example, such as Figure 9 As shown, the first straight line segment S1 can be parallel to the radial section of the first lens 221.

[0136] For example, the outer contour of the base 240 can be a quadrilateral or a square.

[0137] In some examples, such as Figure 9 As shown, the base 240 can be located on one side of the plurality of lenses 220 along the optical axis direction of the lenses 220. For example, among the plurality of lenses 220, the first lens 221 is closest to the image side, and the base 240 can be located on the side of the first lens 221 away from the other lenses 220.

[0138] In some optional implementations, such as Figure 9 As shown, the lens module 20 may also include an image sensor 261, which is located between the base 240 and the first lens 221.

[0139] In some optional implementations, such as Figure 9 As shown, the lens module 20 may also include a flexible circuit board 262.

[0140] For example, one end of the flexible circuit board 262 can be connected to the processor of the image sensor 261, and the other end can be connected to the circuit board.

[0141] In some optional embodiments, the lens module 20 may also include one or more elastic elements, one end of which is connected to the lens barrel 210 and the other end of which is connected to the base 240.

[0142] In some optional implementations, such as Figure 9 As shown, the base 240 may include a bottom 241 and a housing 242. The bottom 241 is located on the image side of the lens, and the housing 242 surrounds the outer periphery of the lens barrel 210, which is around the optical axis of the lens 220. The housing 242 is provided with the groove 244 in the above embodiment. Exemplarily, the bottom 241 and the housing 242 may be interconnected, for example, the bottom 241 and the housing 242 may be connected by interlocking.

[0143] In some examples, the material of the housing 242 may include a polymer material, and the thickness of the bottom 241 of the groove 244 may be 0.2 mm to 0.4 mm.

[0144] For example, the polymer material may specifically be a plastic.

[0145] For example, the thickness of the bottom 241 of the groove 244 may be, but is not limited to, one of 0.2mm, 0.25mm, 0.3mm, 0.35mm, and 0.4mm.

[0146] In some other examples, the material of the housing 242 may include metal, and the thickness of the bottom 241 of the groove 244 may be 0.1 mm to 0.25 mm.

[0147] For example, the metal can be, but is not limited to, stainless steel, aluminum alloy, and shape memory alloy. Shape memory alloy can be, for example, nickel-titanium shape memory alloy.

[0148] For example, the thickness of the bottom 241 of the groove 244 may be, but is not limited to, one of 0.1mm, 0.15mm, 0.18mm, 0.2mm, and 0.25mm.

[0149] In other examples, the material of the housing 242 may be a composite material including metal and plastic, and the thickness of the bottom 241 of the groove 244 may be the same as or similar to the thickness of the metal material.

[0150] Figure 10 This is a structural diagram of a first lens 221 provided in an embodiment of this application.

[0151] In some alternative embodiments, such as Figure 10 As shown, the outer contour of the first lens 221 includes a first arc segment C1 and a second straight segment S2 connected to each other. The first arc segment C1 is located in the non-optical effective portion 2212, and the second straight segment S2 is at least partially located in the non-optical effective portion 2212.

[0152] Figure 11 For example Figure 10 A contour fit diagram of the first lens 221 and the base 240 in the illustrated embodiment.

[0153] In the embodiments of this application, such as Figure 11 As shown, the first line segment S1 is parallel to the second line segment S2.

[0154] For example Figure 8 As shown, the first straight segment S1 can extend along the X direction. For example, after the first lens 221 is installed inside the lens barrel 210, as... Figure 10 As shown, the second straight line segment S2 can extend along the X direction.

[0155] In this embodiment, the outer contour of the first lens 221 has a second straight line segment S2. For example, the first lens 221 can be obtained by cutting a circular lens 220 so that the outer contour of the first lens 221 has a second straight line segment S2, which can further reduce the radial dimension of the lens 220 while minimizing or eliminating the impact on the optical performance of the lens 220.

[0156] For example, the second straight segment S2 of the outer contour of the first lens 221 can be an inward design relative to a circle.

[0157] In this embodiment, the circular lens 220 can be cut to obtain the first lens 221. If the cut portion includes the outer edge of the circular lens 220, the non-optically effective portion 2212 retained in the first lens 221 can still serve as a support and mounting element. If the cut portion includes the optically effective area of ​​the circular lens 220, although the optical performance of the optically effective area may be lost, the optically effective portion 2211 retained in the first lens 221 can still meet the optical performance requirements.

[0158] In this embodiment of the application, the first straight line segment S1 and the second straight line segment S2 in the outer contour of the base 240 are parallel, which enables the outer contour dimension of the base 240 to decrease as the radial dimension of the first lens 221 shrinks.

[0159] Combination Figure 10 In the illustrated embodiment, in some optional implementations, the outer contour of the first lens 221 includes a first arc segment C1 and a second straight segment S2 connected together. The central angle of the arc segment is 120° to 180° (excluding 180°). This not only helps to reduce the deformation of the lens 220, but also helps to ensure the roundness of the lens barrel 210, thereby ensuring the optical performance of the first lens 221.

[0160] For example, the central angle of the first arc segment C1 may be, but is not limited to, one of 120°, 130°, 140°, 160°, or 170°.

[0161] Figure 12 This is a structural diagram of another first lens 221 provided in an embodiment of this application.

[0162] In some alternative embodiments, such as Figure 12 As shown, there are multiple second straight line segments S2 and multiple first arc segments C1, and two adjacent first arc segments C1 are connected by a second straight line segment S2.

[0163] For example, such as Figure 12 As shown, there are two second line segments S2 and two first arc segments C1. For example, the two second line segments S2 can be parallel to each other. Or, for example, the two second line segments S2 can be of equal length.

[0164] In some alternative embodiments, the outer contour of the base 240 has two first straight segments S1.

[0165] Figure 13 For example Figure 12 A contour fit diagram of the first lens 221 and the base 240 in the illustrated embodiment.

[0166] For example, such as Figure 13 As shown, one of the two first line segments S1 is parallel to one of the two second line segments S2. The other of the two first line segments S1 is parallel to the other of the two second line segments S2.

[0167] In this embodiment, it is helpful to reduce the radial dimension of the first lens 221 from multiple radial directions, and also to reduce the outer contour dimension of the base 240 from multiple radial directions of the first lens 221.

[0168] Combination Figure 12 In the illustrated embodiment, in some optional implementations, there are two second straight line segments S2 and two first arc segments C1. The central angle of the first arc segment C1 is 40° to 180° (excluding 180°). This not only helps to reduce the deformation of the lens 220, but also helps to ensure the roundness of the lens barrel 210, thereby ensuring the optical performance of the first lens 221.

[0169] For example, the central angle of the first arc segment C1 may be, but is not limited to, one of 40°, 80°, 110°, 140°, or 170°.

[0170] In some alternative embodiments, the outer contour of the base 240 is quadrilateral. Exemplarily, the outer contour of the base 240 includes four first straight line segments S1. For example, the outer contour of the base 240 can be a quadrilateral or a square.

[0171] Figure 14 This is a structural diagram of another first lens 221 provided in an embodiment of this application.

[0172] In some alternative embodiments, such as Figure 14 As shown, there are 4 segments each of the second straight line segment S2 and the first arc segment C1.

[0173] Figure 15 For example Figure 14 A contour fit diagram of the first lens 221 and the base 240 in the illustrated embodiment.

[0174] For example, such as Figure 15As shown, the four first line segments S1 and the four second line segments S2 correspond to each other and are parallel to each other.

[0175] Therefore, since the base 240 is quadrilateral, the first lens 221 is cut on all four sides, so that the dimensions of the first lens 221 and the base 240 in multiple radial directions of the lens 220 are reduced, and it is convenient to set up four sets of drive units 270 in the areas enclosed by the four corners of the base 240 and the first arc segment C1 respectively, without increasing the size of the lens module 20.

[0176] Combination Figure 14 In the illustrated embodiment, in some optional implementations, there are four second straight line segments S2 and four first arc segments C1, with the central angle of the first arc segment C1 ranging from 20° to 90° (excluding 90°). This not only helps reduce the deformation of the lens 220 but also helps ensure the roundness of the lens barrel 210, thereby ensuring the optical performance of the first lens 221.

[0177] For example, the central angle of the first arc segment C1 may be, but is not limited to, one of 20°, 40°, 60°, 70°, or 80°.

[0178] In the above embodiment, the outer contour of the lens 220 has a straight line segment. If uneven shrinkage occurs during the lens forming process, it can be corrected by improving the mold to achieve error compensation.

[0179] Figure 16 for Figure 8 A partial planar cross-sectional view of the lens module 20 provided in the embodiment shown along the CC' direction.

[0180] In some alternative embodiments, such as Figure 16 As shown, the lens module 20 also includes a drive unit 270, which includes a first structural member 271 and a second structural member 272. The first structural member 271 is connected to the base 240, and the second structural member 272 is connected to the lens barrel 210.

[0181] In this embodiment, the first structural member 271 includes a coil, and the second structural member 272 includes a magnet. Alternatively, the first structural member 271 includes a magnet, and the second structural member 272 includes a coil.

[0182] For example, the coil can be an air coil or a solid coil.

[0183] Therefore, the second structural component 272 can be directly connected to the lens barrel 210. For example, the lens barrel 210 can be used as a motor carrier, achieving integration of the lens barrel 210 and the motor carrier. By eliminating the motor carrier structural component, the integration level of the lens module 20 is improved, which can help to further reduce the size of the lens module 20. Furthermore, in similar related technologies where the lens barrel 210 and the motor carrier are set separately, the lens barrel 210 and the motor carrier need to be connected by adhesive. Using the lens barrel 210 as the motor carrier can also reduce the impact of adhesive shrinkage on the optical performance of the lens module 20. Thus, the embodiments of this application can improve the modulation transfer function (MTF) of the lens module 20.

[0184] The embodiments of this application can not only reduce the structural component of the motor carrier, but also reduce the adhesive bonding process, thereby simplifying the assembly process of the lens module 20 and reducing the manufacturing cost of the lens module 20.

[0185] Regarding the functional issues of the integrated motor carrier in the lens barrel 210, this embodiment of the application can also improve the roundness or coaxiality problems of the lens barrel 210 due to uneven injection shrinkage through mold correction. Regarding the weak strength at the injection weld line of the lens barrel 210, the design of the injection gate position can be adjusted to ensure the weld line is formed in a non-critical area, thereby achieving improvement.

[0186] The reinforcing ribs in the above embodiments can also improve the above-mentioned problems.

[0187] In some examples, the size of the position of the lens barrel 210 for mounting the coil along the radial direction of the first lens barrel 221 can be reduced to between 0.3 mm and 0.5 mm. For example, the size of the position of the lens barrel 210 for mounting the coil along the radial direction of the first lens barrel 221 can be, but is not limited to, one of 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, and 0.5 mm.

[0188] In some alternative embodiments, the lens barrel 210 has a limiting portion located radially away from the first lens 221 along the first lens 221, the limiting portion passing through the coil. This not only allows the lens barrel 210 to be used as a motor carrier, but also further reduces the thickness of the lens barrel 210 for mounting the coil, and reduces the radial dimension of the lens barrel 210 along the first lens 221.

[0189] In some alternative embodiments, such as Figure 16 As shown, the minimum distance D1 between the coil and the magnet is 0.1 mm to 0.2 mm. For example, the minimum distance D1 between the coil and the magnet may include, but is not limited to, one of 0.1 mm, 0.12 mm, 0.15 mm, 0.18 mm, and 0.2 mm.

[0190] Through the above embodiments, since the coil and magnet are usually arranged radially along the lens 220, by limiting the minimum distance D1 between the coil and magnet, the size of the lens module 20 along the radial direction of the lens 220 can be further reduced.

[0191] In some alternative embodiments, such as Figure 16 As shown, the base 240 is provided with a mounting hole 243. The lens barrel 210 is located within and connected to the mounting hole 243. For example, the mounting hole 243 can be a blind hole.

[0192] In some alternative embodiments, such as Figure 16 As shown, the drive unit 270 can be disposed between the outer contour of the lens barrel 210 and the outer contour of the base.

[0193] In some alternative embodiments, such as Figure 16 As shown, the base 240 is also provided with a groove 244.

[0194] Figure 17 This is a diagram showing the installation location of a drive unit 270 provided in an embodiment of this application.

[0195] In some optional implementations, such as Figure 17 As shown, the outer contour of the base 240 also includes a third straight line segment S3, which is connected to the first straight line segment S1.

[0196] Figure 18 This is a contour fit diagram of a lens barrel 210 and a base 240 provided for an embodiment of this application.

[0197] like Figure 18 As shown in the embodiments of this application, as Figure 17 The groove 244 shown is located within the area enclosed by the first straight line segment S1, the third straight line segment S3, and the second arc segment C2 of the outer contour of the lens barrel 210.

[0198] In this embodiment of the application, the first structural member 271 is located within the groove 244 and is connected to the groove 244.

[0199] The outer contour of the lens barrel 210 can be the outer contour of the radial section of the lens barrel 210 on the lens 220. The outer contour of the lens barrel 210 may include a fourth straight line segment S4 and a second arc segment C2. The fourth straight line segment S4 may be parallel to the second straight line segment S2 of the outer contour of the first lens 221, and the second arc segment C2 may be coaxial with or have the same center as the first arc segment C1 of the outer contour of the first lens 221.

[0200] In some examples, a portion of the third line segment S3 and a portion of the first line segment S1 can be the same line segment. For example, if the connected first line segment S1 and third line segment S3 can be parallel to two second line segments S2 respectively, then the third line segment S3 is also the first line segment S1.

[0201] In some optional implementations, such as Figure 18 As shown, the second arc segment C2 of the outer contour of the lens barrel 210 has a first point P1 that is closest to the first straight line segment S1 of the outer contour of the base 240. The first straight line segment S1 has a second point P2 that is closest to the second arc segment C2 of the outer contour of the lens barrel 210. The first point P1 and the second point P2 are connected to form the fifth straight line segment S5. The groove 244 is located in the area enclosed by the fifth straight line segment S5, the first straight line segment S1, the third straight line segment S3 and the second arc segment C2 of the outer contour of the lens barrel 210.

[0202] In the above embodiments, the straight segments of the outer contour of the base 240 form corners, and the groove 244 of the base 240 is located in the area between the corner and the outer contour of the lens barrel 210 in the radial section of the lens 220. The first structural member 271 is located in the groove 244, thereby making full use of the unused area in the lens module 20 to set up the drive unit 270, which helps to further reduce the size of the lens module 20.

[0203] In some optional implementations, such as Figure 17 As shown, the outer contour of the base 240 is quadrilateral, and the outer contour of the base 240 includes two first straight line segments S1 and two third straight line segments S3. Adjacent first straight line segments S1 are connected by a third straight line segment S3. Thus, the lens module 20 can be provided with four sets of drive units 270, and the four first structural members 271 of the four sets of drive units 270 are respectively arranged in the area between the four corners formed by the straight line segments of the outer contour of the base 240 and the second arc segment C2 of the outer contour of the lens barrel 210.

[0204] In some alternative embodiments, the lens module 20 also includes a Hall magnet.

[0205] In this embodiment, the Hall magnet can be configured to detect the position of the lens barrel 210 relative to the base 240, or in other words, the Hall magnet can be configured to detect the position of the lens barrel 210 in the Z direction.

[0206] In some optional embodiments, the second arc segment C2 of the outer contour of the lens barrel 210 has a first point P1 that is closest to the first straight line segment S1 of the outer contour of the base 240, and the first straight line segment S1 has a second point P2 that is closest to the second arc segment C2 of the outer contour of the lens barrel 210. The first point P1 and the second point P2 are connected to form a fifth straight line segment S5. The Hall magnet can be located in the area enclosed by the fifth straight line segment S5, the first straight line segment S1, the third straight line segment S3 and the second arc segment C2 of the outer contour of the lens barrel 210.

[0207] In some alternative embodiments, the Hall magnet may be located within the groove 244.

[0208] This application provides an electronic device 01, which includes a housing, such as the lens module 20 in any of the above embodiments. The housing and the lens barrel 210 are connected.

[0209] In some examples, the housing may include a rear housing 15.

[0210] For example, the lens barrel 210 can be inserted into the rear shell 15, and the lens barrel 210 can be sealed to the rear shell 15.

[0211] Figure 19 A planar cross-sectional view of a carrier 30 for the first lens 221 provided in an embodiment of this application.

[0212] like Figure 19 As shown, embodiments of this application also provide a carrier 30 for a first lens 221. The vacuum channel 31 in the carrier 30 may not be perpendicular to the adsorption plane of the pore, so as to avoid the optically effective part 2211 and provide sufficient adsorption force, which helps to reduce the maximum width of the non-optically effective part 2212.

[0213] The nozzle of the vacuum channel 31 can be formed using femtosecond laser, contour-like design, or other methods.

[0214] In some examples, the angle between the vacuum channel 31 in the carrier 30 and the adsorption plane of the pore can be determined based on the height of the convex surface of the image side of the first lens 221. Exemplarily, the angle between the vacuum channel 31 in the carrier 30 and the adsorption plane of the pore can be from 20° to 60°. For example, the angle between the vacuum channel 31 in the carrier 30 and the adsorption plane of the pore can be, but is not limited to, one of 20°, 30°, 40°, 50°, and 60°.

[0215] Through the above embodiments, the size of the lens module 20 in the X or Y direction can be significantly reduced. For example, compared with related technologies, the size of the lens module 20 in the X or Y direction can be reduced by 1.5mm or even more, which helps to achieve a thinner and lighter design for the lens module 20 and even the electronic device 01. Especially for the front-facing camera, it can effectively reduce the size of the punch-hole screen and improve the screen visual effect of the electronic device 01.

[0216] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Furthermore, with the evolution of architectures and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

Claims

1. A lens module, characterized in that, The lens module comprises: a lens barrel; a plurality of lenses, each of which is located in the lens barrel, the largest radial dimension of the plurality of lenses being a first lens; the first lens comprises an optically effective part and a non-optically effective part, the non-optically effective part being arranged around the periphery of the optically effective part; the image side surface of the first lens is convex, and the maximum width of the non-optically effective part is 0.2mm to 0.4mm; or, the image side surface of the first lens is concave, and the maximum width of the non-optically effective part is 0.1mm to 0.2mm.

2. The lens module according to claim 1, wherein, The optically effective part and the non-optically effective part are circularly arcuate, and the radius of the circular arc is 0.03mm to 0.05mm.

3. The lens module according to claim 1, wherein, The lens module further comprises a reinforcing rib, which is connected with the lens barrel and arranged around the lens barrel. 4.The lens module according to any one of claims 1-3, wherein, The first lens is the closest lens to the image side among the plurality of lenses.

5. The lens module according to claim 4, wherein, The non-optically effective part is bonded to the lens barrel. 6.The lens module according to any one of claims 1-3, wherein, The lens module further comprises a base, and the outer contour of the base comprises a first straight line segment; the outer contour of the first lens comprises an arcuate segment and a second straight line segment connected with each other; the arcuate segment is located in the non-optically effective part, and the second straight line segment is at least partially located in the non-optically effective part; the first straight line segment is parallel to the second straight line segment.

7. The lens module according to claim 6, wherein, There are a plurality of second straight line segments and a plurality of arcuate segments, and adjacent two arcuate segments are connected by one second straight line segment. 8.The lens module according to claim 7, wherein, The outer contour of the base is quadrilateral; there are four second straight line segments and four arcuate segments, and the central angle of the arcuate segment is 20° to 90°. 9.The lens module according to claim 6, wherein, The lens module further comprises a driving unit, which comprises a first structural member and a second structural member; the first structural member is connected with the base, and the second structural member is connected with the lens barrel; the first structural member comprises a coil, and the second structural member comprises a magnet; or, the first structural member comprises a magnet, and the second structural member comprises a coil. 10.The lens module according to claim 9, wherein, The minimum distance between the coil and the magnet is 0.1mm to 0.2mm.

11. The lens module according to claim 9, wherein, The base is provided with a mounting hole and a groove; the lens barrel is located in and connected with the mounting hole; the outer contour of the base further comprises a third straight line segment, which is connected with the first straight line segment; the outer contour of the lens barrel has an arcuate segment, the groove is located in the region surrounded by the first straight line segment, the third straight line segment and the arcuate segment of the outer contour of the lens barrel; the first structural member is located in and connected with the groove.

12. An electronic device, comprising: The electronic device comprises: a shell, such as the lens module of any one of claims 1-11; the shell and the lens barrel are connected.

Images