CN111045183A

CN111045183A - Zoom lens, imaging module and electronic equipment

Info

Publication number: CN111045183A
Application number: CN201911403354.XA
Authority: CN
Inventors: 徐青
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-04-21
Anticipated expiration: 2039-12-31
Also published as: CN111045183B

Abstract

The application discloses a zoom lens, an imaging module and an electronic device. The zoom lens includes a housing, a first lens assembly, a second lens assembly, a third lens assembly, and a spacer assembly. The housing includes a base plate and a side plate disposed on the base plate. The first lens assembly, the second lens assembly and the third lens assembly are arranged in the shell from the object side to the image side. When the zoom lens is switched between the short-focus state and the long-focus state, the first lens assembly is kept fixed relative to an imaging surface of the zoom lens, and the second lens assembly and the third lens assembly move relative to the imaging surface along an optical axis of the zoom lens. A spacer assembly is disposed between the second lens assembly and the side plate and/or between the third lens assembly and the side plate. The zoom lens, the imaging module and the electronic equipment can improve imaging quality and reduce occupied space of the camera, and noise is effectively reduced.

Description

Zoom lens, imaging module and electronic equipment

Technical Field

The present application relates to the field of imaging technologies, and in particular, to a zoom lens, an imaging module, and an electronic device.

Background

The user has the demand of shooing closely the scene and shooing distant range scene, consequently can set up a plurality of cameras on electronic equipment, for example long focus camera and ordinary focus camera (being short focus camera relatively long-focus), realizes the change of electronic equipment focus through the switching between a plurality of cameras to satisfy the demand that the user zooms and shoots. The arrangement of the multiple cameras occupies the space of the electronic equipment, and the cost is high.

Disclosure of Invention

The embodiment of the application provides a zoom lens, an imaging module and electronic equipment.

The zoom lens of the embodiment of the application comprises a shell, a first lens assembly, a second lens assembly, a third lens assembly and a spacing assembly. The housing includes a base plate and a side plate disposed on the base plate. The first lens assembly, the second lens assembly and the third lens assembly are arranged in the shell from the object side to the image side. When the zoom lens is switched between a short focus state and a long focus state, the first lens assembly is kept fixed relative to an imaging surface of the zoom lens, and the second lens assembly and the third lens assembly move relative to the imaging surface along an optical axis of the zoom lens. The spacer assembly is disposed between the second lens assembly and the side plate and/or between the third lens assembly and the side plate.

The imaging module of the embodiment of the application comprises a photosensitive element zoom lens, wherein the photosensitive element is arranged on the image side of the zoom lens. The zoom lens comprises a shell, a first lens assembly, a second lens assembly, a third lens assembly and a spacing assembly. The housing includes a base plate and a side plate disposed on the base plate. The first lens assembly, the second lens assembly and the third lens assembly are arranged in the shell from the object side to the image side. When the zoom lens is switched between a short focus state and a long focus state, the first lens assembly is kept fixed relative to an imaging surface of the zoom lens, and the second lens assembly and the third lens assembly move relative to the imaging surface along an optical axis of the zoom lens. The spacer assembly is disposed between the second lens assembly and the side plate and/or between the third lens assembly and the side plate.

The electronic equipment of this application embodiment includes formation of image module and casing, the formation of image module is installed on the casing. The imaging module comprises a photosensitive element zoom lens, and the photosensitive element is arranged on the image side of the zoom lens. The zoom lens comprises a shell, a first lens assembly, a second lens assembly, a third lens assembly and a spacing assembly. The housing includes a base plate and a side plate disposed on the base plate. The first lens assembly, the second lens assembly and the third lens assembly are arranged in the shell from the object side to the image side. When the zoom lens is switched between a short focus state and a long focus state, the first lens assembly is kept fixed relative to an imaging surface of the zoom lens, and the second lens assembly and the third lens assembly move relative to the imaging surface along an optical axis of the zoom lens. The spacer assembly is disposed between the second lens assembly and the side plate and/or between the third lens assembly and the side plate.

According to the zoom lens, the imaging module and the electronic equipment, the focal length of the zoom lens can be changed by moving the second lens assembly and the third lens assembly, optical zooming can be achieved without installing a plurality of cameras in the electronic equipment, the image quality is improved, meanwhile, the occupied space of the cameras is reduced, and the cost is saved. In addition, the spacing assembly is arranged between the second lens assembly and the side plate and/or between the third lens assembly and the side plate, and can play a role in spacing the second lens assembly from the side plate and/or spacing the third lens assembly from the side plate, so that the noise inside the zoom lens module is effectively reduced when the zoom lens is zoomed or is severely impacted.

Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of an electronic device of some embodiments of the present application;

FIG. 2 is a schematic view of an assembly of an imaging module according to some embodiments of the present application;

FIG. 3 is an exploded view of an imaging module according to some embodiments of the present disclosure;

FIG. 4 is a schematic cross-sectional view of the imaging module of FIG. 2 taken along line IV-IV;

FIG. 5 is a schematic partial configuration view of a zoom lens according to some embodiments of the present application;

FIG. 6 is a simplified schematic diagram of a zoom lens of certain embodiments of the present application;

FIG. 7 is a schematic block diagram of a zoom lens system according to some embodiments of the present application in a short focus state;

FIG. 8 is a schematic structural diagram of a zoom lens system according to some embodiments of the present application in a telephoto state;

FIG. 9 is a schematic view of lenses of a zoom lens of certain embodiments of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1, an electronic device 3000 according to an embodiment of the present disclosure includes an imaging module 1000 and a housing 2000. The electronic device 3000 may be a mobile phone, a tablet computer, a notebook computer, a game machine, a smart watch, a smart bracelet, a head display device, an unmanned aerial vehicle, a Digital Still Camera (DSC), a Digital video recorder (DVC), a driving recorder, and other monitoring devices having a Camera or a camcorder. In the embodiment of the present application, the electronic device 3000 is a mobile phone as an example, and it is understood that the specific form of the electronic device 3000 is not limited to the mobile phone.

The imaging module 1000 is combined with the housing 2000. The imaging module 1000 may be mounted on the chassis 2000, or the chassis 2000 may serve as a mounting carrier for the imaging module 1000. The housing 2000 can support, connect, and protect the imaging module 1000. The housing 2000 may also be used to mount functional modules of the electronic device 3000, such as a power supply device, an imaging device, and a communication device, so that the housing 2000 provides protection for the functional modules, such as dust prevention, drop prevention, and water prevention. The material of the casing 2000 may be plastic, metal, glass, etc., without limitation.

Referring to fig. 3 and fig. 7, an imaging module 1000 according to an embodiment of the present disclosure includes a zoom lens 100 and a photosensitive element 200, wherein the photosensitive element 200 is disposed at an image side of the zoom lens 100. Specifically, the photosensitive element 200 may be disposed at the imaging surface 90 of the zoom lens 100. The light sensing element 200 can convert the optical signal converged by the zoom lens 100 into an electrical signal to obtain an image.

Referring to fig. 5, 7 and 8, a zoom lens 100 according to an embodiment of the present application includes a housing 60, a first lens assembly 10, a second lens assembly 20, a third lens assembly 30 and a spacer assembly 80. The housing 60 includes a base plate 61 and a side plate 62 provided on the base plate 61. The first lens assembly 10, the second lens assembly 20, and the third lens assembly 30 are disposed within the housing 60 and arranged from object side to image side. When the zoom lens 100 is switched between the short focus state and the long focus state, the first lens assembly 10 is kept fixed with respect to the imaging surface 90 of the zoom lens 100, and the second lens assembly 20 and the third lens assembly 30 are moved along the optical axis O with respect to the imaging surface 90. Spacer assemblies 80 are disposed between the second lens assembly 20 and the side plate 62 and/or between the third lens assembly 30 and the side plate 62.

It is to be noted that, along the direction from the object side to the image side, i.e. along the incident light direction of the zoom lens 100, the image side is the side where the image plane 90 is located, and the object side is the side opposite to the image side.

According to the zoom lens 100, the imaging module 1000 and the electronic device 3000 of the embodiment of the application, the focal length of the zoom lens 100 is variable by moving the second lens assembly 20 and the third lens assembly 30, optical zooming can be realized without installing a plurality of cameras in the electronic device 3000, the imaging quality is improved, meanwhile, the occupied space of the cameras is reduced, and the cost is saved. In addition, the spacing assembly 80 is disposed between the second lens assembly 20 and the side plate 62 and/or between the third lens assembly 30 and the side plate 62, and can play a role of spacing the second lens assembly 20 from the side plate 62 and/or spacing the third lens assembly 30 from the side plate 62, thereby effectively reducing noise inside the zoom lens 100 when the zoom lens is zoomed or is severely impacted.

Referring to fig. 2, fig. 3 and fig. 7, in an embodiment of the present application, a zoom lens 100 includes a housing 60, a first lens assembly 10, a second lens assembly 20, a third lens assembly 30, a prism assembly 40, an optical filter 50, a driving element 70 and a spacing assembly 80. In the object-to-image direction of the zoom lens 100, the prism assembly 40, the first lens assembly 10, the second lens assembly 20, the third lens assembly 30, the optical filter 50 and the photosensitive element 200 are sequentially arranged.

For convenience of subsequent description, the optical axis of the zoom lens 100 is O, a direction parallel to the optical axis O is defined as an x direction, and two directions perpendicular to the x direction are respectively defined as a y direction and a z direction, that is, the x direction, the y direction and the z direction are mutually perpendicular in pairs.

Referring to fig. 2 and 3, the housing 60 includes a base plate 61, a side plate 62, and a cover plate 63. The base plate 61, the side plate 62 and the cover plate 63 together enclose an accommodating space 64. The accommodating space 64 is used for accommodating the first lens assembly 10, the second lens assembly 20, the third lens assembly 30, the prism assembly 40, the optical filter 50, the driving member 70, the spacing assembly 80 and the photosensitive element 200.

The substrate 61 includes a carrying surface 611. The bearing surface 611 is used for bearing the side plate 62, the first lens assembly 10, the second lens assembly 20, the third lens assembly 30, the prism assembly 40, the optical filter 50 and the photosensitive element 200. The substrate 61 may have a rectangular parallelepiped structure, a square structure, a cylindrical structure, or other structures, and is not limited herein. In the present embodiment, the substrate 61 has a rectangular parallelepiped structure.

The bearing surface 611 is provided with a slide rail 612, and an extending direction of the slide rail 612 is parallel to the optical axis O direction, i.e. parallel to the x direction. The number of slide rails 612 is one, two, three, four, or even more. In this embodiment, the number of the slide rails 612 is two, and the two slide rails 612 have the same length.

The side plate 62 is disposed around the edge of the base plate 61. The side plate 62 is perpendicular to the bearing surface 611. The side plates 62 may be provided on the base plate 61 by gluing, screwing, clipping, and the like. The side plates 62 may also be integrally formed with the base plate 61.

Side panel 62 includes an inner side 621, an outer side 622, an upper surface 623, and a lower surface 624. The inner side 621 is opposite to the outer side 622, the inner side 621 is located in the accommodating space 64, and the outer side 622 is located outside the accommodating space 64. Medial side 621 is connected to both upper surface 623 and lower surface 624, and lateral side 622 is also connected to both upper surface 623 and lower surface 624. The upper surface 623 is opposite the lower surface 624. Lower surface 624 is bonded to bearing surface 611, and upper surface 623 is opposite bearing surface 611.

The side plates 62 further include a first side plate 625 and a second side plate 626 parallel to the x-direction. The first side plate 625 is opposite the second side plate 626. A sliding groove 627 is formed on the inner side 621 of the first side plate 625 and/or the inner side 621 of the second side plate 626. For example, the inner side 621 of the first side plate 625 is provided with a sliding groove 627; or, the inner side 621 of the second side plate 626 is provided with a sliding groove 627; or, the inner side 621 of the first side plate 625 and the inner side 621 of the second side plate 626 are both provided with sliding grooves 627. In this embodiment, the inner side surface 621 of the first side plate 625 and the inner side surface 621 of the second side plate 626 are both provided with a sliding groove 627, and an extending direction of the sliding groove 627 is parallel to the bearing surface 611.

The sliding groove 627 is communicated with the accommodating space 64, and the extending direction of the sliding groove 627 is parallel to the x direction. The groove depth of the sliding groove 627 is smaller than the thickness of the side plate 62, that is, the sliding groove 627 does not penetrate through the outer side surface 622 of the side plate 62. In other embodiments, the sliding groove 627 may penetrate through the outer side surface 622 of the side plate 62 to communicate the accommodating space 64 with the outside. The number of the chutes 627 formed on the inner side surface 621 of the first side plate 625 and the inner side surface 621 of the second side plate 626 may be one or more. For example, the inner side 621 of the first side plate 625 is provided with a sliding groove 627, and the inner side 621 of the second side plate 626 is provided with a sliding groove 627; for another example, the inner side 621 of the first side plate 625 is provided with two sliding grooves 627, and the inner side 621 of the second side plate 626 is provided with two sliding grooves 627; for another example, the inner side surface 621 of the first side plate 625 is provided with a sliding groove 627, and the inner side surface 621 of the second side plate 626 is provided with two sliding grooves 627, which are not listed here. In this embodiment, the inner side surface 621 of the first side plate 625 and the inner side surface 621 of the second side plate 626 are both provided with a sliding groove 627. The shape of the sliding groove 627 cut by a plane perpendicular to the x direction is a rectangle, a semicircle, or other shapes, such as other regular shapes or irregular and irregular shapes.

Referring to fig. 3 and 5, the side plate 62 further includes a first position-limiting portion 629 and a second position-limiting portion 630. The first limiting portion 629 extends from the first side plate 625, and the extending direction may be parallel to the y direction. Specifically, the first limiting portion 629 may be formed by extending the inner side surface 621 of the first side plate 625 toward the inner side surface 621 of the second side plate 626. The second limiting portion 630 extends from the second side plate 626, and the extending direction is also parallel to the y direction. Specifically, the second limiting portion 630 may be formed by extending the inner side surface 621 of the second side plate 626 toward the inner side surface 621 of the first side plate 625. The first position-limiting part 629 is located on the image side of the third lens element 30, and the second position-limiting part 630 is located on the object side of the second lens element 20 when viewed along the optical axis O.

Referring to fig. 2 and 3, the cover plate 63 is disposed on the side plate 62. Specifically, the cover plate 63 may be attached to the upper surface 623 of the side plate 62 by means of snap-fit, screw-fit, glue, or the like. The cover 63 includes a cover body 631. Light inlet 633 is disposed on the surface of the cover plate 631 opposite to the side plate 62, and the depth direction of the light inlet 633 can be perpendicular to the x direction, so that the imaging module 1000 is a periscopic structure. In other embodiments, the light inlet 633 is not limited to an open structure, and can be a light-transmissive solid structure from which light can be incident into the receiving space 64 and enter the prism assembly 40.

Referring to fig. 3, 4, 7 and 8, the first lens assembly 10, the second lens assembly 20 and the third lens assembly 30 are disposed in the housing 60 and arranged from the object side to the image side. The first lens assembly 10, the second lens assembly 20 and the third lens assembly 30 may be disposed in the receiving space 64. When the zoom lens 100 switches between the short focus state and the long focus state, the first lens assembly 10 remains stationary on the optical axis O (i.e. the first lens assembly 10 remains stationary with respect to the imaging plane 90 of the zoom lens 100), and the second lens assembly 20 and the third lens assembly 30 move along the optical axis O with respect to the imaging plane 90. Specifically, when the zoom lens 100 is switched from the short focus state to the long focus state, the second lens assembly 20 and the third lens assembly 30 move toward the object side of the zoom lens 100 along the optical axis O; when the zoom lens 100 is switched from the telephoto state to the short focus state, the second lens assembly 20 and the third lens assembly 30 move toward the image side of the zoom lens 100 along the optical axis O.

In one embodiment, during the switching process of the zoom lens 100 between the short focus state and the long focus state, the first lens assembly 10 remains stationary on the optical axis O, and the second lens assembly 20 and the third lens assembly 30 can move towards the object side direction or the image side direction of the zoom lens 100 along the optical axis O at the same time. That is, when the zoom lens 100 is switched from the short focus state to the long focus state, the first lens assembly 10 remains fixed on the optical axis O, and the second lens assembly 20 and the third lens assembly 30 move toward the object side of the zoom lens 100 at the same time; when the zoom lens 100 is switched from the telephoto state to the telephoto state, the first lens assembly 10 remains fixed on the optical axis O, and the second lens assembly 20 and the third lens assembly 30 move in the image side direction of the zoom lens 100 at the same time. In the switching process of the zoom lens 100 between the short focus state and the long focus state, the second lens assembly 20 and the third lens assembly 30 move towards the object side direction or the image side direction of the zoom lens 100 at the same time, so that the moving time of the lens groups is saved, and the zooming time of the zoom lens 100 is shortened. It should be noted that, during the process of simultaneous movement, the moving direction of the second lens assembly 20 is the same as the moving direction of the third lens assembly 30, and the moving amount of the second lens assembly 20 may be the same as or different from the moving amount of the third lens assembly 30. In the embodiment of the present application, the amount of movement of the second lens assembly 20 is different from the amount of movement of the third lens assembly 30.

In another embodiment, during the switching process of the zoom lens 100 between the short focus state and the long focus state, the first lens assembly 10 remains stationary on the optical axis O, and the second lens assembly 20 and the third lens assembly 30 can be sequentially moved along the optical axis O toward the object side direction or the image side direction of the zoom lens 100. That is, when the zoom lens 100 is switched from the short focus state to the long focus state, the first lens assembly 10 remains fixed on the optical axis O, the second lens assembly 20 may first move toward the object side of the zoom lens 100, and then the third lens assembly 30 also moves toward the object side of the zoom lens 100; or the third lens assembly 30 is moved toward the object side of the zoom lens 100 first, and then the second lens assembly 20 is also moved toward the object side of the zoom lens 100. When the zoom lens 100 is switched from the telephoto state to the short focus state, the first lens assembly 10 remains fixed in the optical axis O direction, the second lens assembly 20 may be moved toward the image side of the zoom lens 100, and then the third lens assembly 30 is also moved toward the image side of the zoom lens 100; or the third lens assembly 30 is moved toward the image side of the zoom lens 100 first, and then the second lens assembly 20 is also moved toward the image side of the zoom lens 100. Due to the fact that the two lens groups move at different time, interference does not exist between the second lens assembly 20 and the third lens assembly 30, and zooming precision of the zoom lens 100 is higher.

Referring to fig. 3, 4 and 7, the first lens assembly 10 includes a first lens group 11 and a first housing 12.

The first housing 12 has a first light inlet 121 and a first light outlet 122 corresponding to the first lens group 11. The first housing 12 is formed with a first accommodating space 123 to accommodate the first lens group 11. The first accommodating space 123 is communicated with the accommodating space 64 through the first light inlet 121 and the first light outlet 122. The first housing 12 includes opposing first top 124 and bottom 125 surfaces. The first top surface 124 is opposite to the cover plate 63. The first bottom surface 125 is opposite to the carrying surface 611 of the substrate 61.

The first lens group 11 is mounted in a first housing 12. Specifically, the first lens group 11 can be mounted in the first accommodating space 123 by gluing, screwing, clamping, and the like. The first lens group 11 may include one or more lenses. For example, the first lens group 11 includes two lenses, a first lens 101 and a second lens 102. The first lens 101 and the second lens 102 may be all glass lenses or all plastic lenses, or may be partially glass lenses and partially plastic lenses. One or more lenses may be all part of a solid of revolution, or part of a solid of revolution and part of a solid of revolution. In the present embodiment, each lens is a part of a solid of revolution. Taking first lens 101 as an example, as shown in fig. 9, first lens 101 is first formed into revolved lens s1 by a mold, revolved lens s1 is circular in shape sectioned by a plane perpendicular to optical axis O, the diameter of the circle being R, and then the edge of revolved lens s1 is cut to form first lens 101. The shape of the first lens 101 cut by a plane perpendicular to the optical axis O is a rectangle whose two sides are T1 and T2, T1/R e [0.5, 1 ], T2/R e [0.5, 1 ], respectively. For example, T1/R may be 0.5, 0.6, 0.7, 0.75, 0.8, 0.95, etc., and T2/R may be 0.55, 0.65, 0.7, 0.75, 0.85, 0.9, etc. It is understood that the specific ratios of T1/R and T2/R are determined according to the size of the internal space of the electronic device 3000, the optical parameters of the zoom lens 100 (such as the size of the effective optical area of the first lens 101), and the like. Alternatively, the first lens 101 is directly manufactured using a special mold, and the cavity of the mold is a part of a solid of revolution for which specific ratios of T1/R and T2/R have been determined, thereby directly manufacturing the first lens 101. In this way, first lens 101 is a part of revolved body lens s1, and has a smaller volume than complete revolved body lens s1, so that the overall volume of zoom lens 100 is reduced, which is advantageous for downsizing electronic device 3000. It should be noted that fig. 9 is only used for illustrating the first lens 101, and is not used for indicating the size of the first lens 101, and it should not be understood that the size of each lens is the same.

Zoom lens 100 may also include a stop 103. A stop 103 may be mounted within the first housing 12 and disposed on the first lens group 11. Specifically, the stop 103 may be disposed on a side of the first lens 101 facing the prism assembly 40. In the process of switching the zoom lens 100 between the short focus state and the long focus state, the stop 103 and the first lens group 11 are kept fixed relative to the imaging surface 90 of the zoom lens 100.

The second lens assembly 20 includes a second lens group 21, a second housing 22, a second slide arm 23, and a second ball 24.

The second housing 22 has a second light inlet 221 and a second light outlet 222 corresponding to the second lens group 21. The second housing 22 is formed with a second accommodation space 223 to accommodate the second lens group 21. The second accommodating space 223 is communicated with the accommodating space 64 through the second light inlet 221 and the second light outlet 222. The second housing 22 includes opposing second top and

bottom surfaces

224 and 225. The second top surface 224 is opposite to the cover plate 63. The second bottom surface 225 is opposite to the carrying surface 611 of the substrate 61.

The second ball 24 is disposed on the second bottom surface 225. Specifically, the second groove 2251 is formed in the second bottom surface 225, the second ball 24 is disposed in the second groove 2251, and the second ball 24 located in the second groove 2251 of the second bottom surface 225 abuts against the bottom of the sliding rail 612.

The second groove 2251 matches the shape of the second ball 24. For example, the second ball 24 has a spherical shape and a small movement resistance, the second groove 2251 has a semicircular shape, and the diameter of the second ball 24 is equal to the diameter of the second groove 2251. That is, half of the second ball 24 is located in the second groove 2251, and the second ball 24 and the second groove 2251 are tightly combined, so that the second ball 24 moves to move the second housing 22. The sliding rail 612 may be a groove formed on the bearing surface 611 and extending in a direction parallel to the x-direction, or the sliding rail 612 may be a protrusion disposed on the bearing surface 611 and extending in a direction parallel to the x-direction, and a surface of the protrusion opposite to the second bottom surface 225 is formed with a groove engaged with the second ball 24. In this embodiment, the sliding rail 612 is a groove formed on the bearing surface 611 and having an extending direction parallel to the x-direction. After the second lens assembly 20 is mounted in the receiving space 64, a portion of the second ball 24 is located in the slide rail 612 and abuts against the bottom surface of the slide rail 612. Certainly, the second ball 24 may also be disposed on the second top surface 224, and the corresponding second top surface 224 may also be provided with a second groove 2251, at this time, the inner surface of the cover plate 63 may also form a first rail, and the second ball 24 located in the second groove 2251 of the second top surface 224 is abutted against the bottom of the first rail, where the structure of the first rail is similar to that of the sliding rail 612, and is not described herein again. The second groove 2251 is formed on the second top surface 224 and corresponds to the second ball 24, so that the second housing 22 has less resistance to movement with respect to the second top surface 224 during movement.

The number of the second grooves 2251 may be one or more on the second bottom surface 225 or the second top surface 224. For example, the number of the second grooves 2251 is one, two, three, four, even more, etc. In the present embodiment, the number of the second grooves 2251 is three. The number of the second balls 24 may be one or more on the second bottom surface 225 or the second top surface 224. In the present embodiment, the number of the second balls 24 is the same as that of the second grooves 2251, and is three. Three second grooves 2251 are spaced apart on the second bottom surface 225 or the second top surface 224.

The second groove 2251, the second ball 24 and the sliding rail 612 on the second bottom surface 225 are only used as an example for description, and the relationship between the second groove 2251, the second ball 24 and the first track on the second top surface 224 is referred to herein and will not be described in detail. Specifically, on the second bottom surface 225, the three second grooves 2251 are divided into a first group and a second group, the first group includes one second groove 2251, the second group includes two second grooves 2251, the second grooves 2251 of the first group correspond to the first slide rail 613, and the second grooves 2251 of the second group correspond to the second slide rail 614. In this way, the second balls 24 corresponding to the first group of second grooves 2251 move (including sliding, rolling, or rolling-while-sliding) in the first slide rail 613, the second balls 24 corresponding to the second group of second grooves 2251 move in the second slide rail 614, the first group of corresponding second balls 24 and the second group of corresponding second balls 24 are respectively limited in the first slide rail 613 and the second slide rail 614, and the three second balls 24 enclose a triangle (the center of the second ball 24 located in the first slide rail 613 is the vertex of the triangle), so that the number of the second balls 24 is reduced as much as possible on the premise of ensuring the motion stability, and the motion resistance can be reduced. Moreover, because in the y direction, the two opposite sides of the outer wall of the first group of corresponding second balls 24 are abutted by the two opposite sides of the inner wall of the first slide rail 613, the two opposite sides of the outer wall of the second group of corresponding second balls 24 are abutted by the two opposite sides of the inner wall of the second slide rail 614, and the three second balls 24 surround to form a triangle, the second housing 22 can be prevented from shaking or inclining in the y direction, so that the imaging quality of the imaging module 1000 is not affected. In the embodiment of the present application, the second ball 24 is disposed on the second housing 22 to achieve better movement of the second housing 22 and reduce resistance during movement.

The second slide arm 23 is provided at a side of the second housing 22. Specifically, the second slide arm 23 is located on a surface of the second housing 22 opposite the inner side surface 621 of the first side plate 625 and/or the second side plate 626. For example, the second slide arm 23 is located on the surface of the second housing 22 opposite the inner side surface 621 of the first side plate 625; alternatively, the second slide arm 23 is located on the surface of the second housing 22 opposite the inner side surface 621 of the second side plate 626; alternatively, the second slide arm 23 is located on the surface of the second casing 22 opposite to the inner side surface 621 of the first side plate 625, and is located on the surface of the second casing 22 opposite to the inner side surface 621 of the second side plate 626. In the present embodiment, the second slider arm 23 is positioned on the surface of the second housing 22 facing the inner surface 621 of the first side plate 625. The second sliding arm 23 is slidably disposed within the sliding groove 627.

The second lens group 21 is mounted in a second housing 22. Specifically, the second lens group 21 can be mounted in the second accommodating space 223 by gluing, screwing, clamping, etc. The second lens group 21 may include one or more lenses. For example, the second lens group 21 includes three lenses, a third lens 201, a fourth lens 202, and a fifth lens 203. The third lens 201, the fourth lens 202, and the fifth lens 203 may be all glass lenses or all plastic lenses, or may be partially glass lenses and partially plastic lenses. One or more lenses may be all part of a solid of revolution, or part of a solid of revolution and part of a solid of revolution. It should be noted that the explanation of the revolving body of the first lens group 11 in the foregoing embodiment is also applicable to the embodiment of the present application, and is not repeated herein.

The third lens assembly 30 includes a third lens group 31, a third housing 32, a third slider arm 33, and a third ball 34.

The third housing 32 has a third light inlet 321 and a third light outlet 322 corresponding to the third lens group 31. The third housing 32 is formed with a third accommodating space 323 to accommodate the third lens group 31. The third accommodating space 323 is communicated with the accommodating space 64 through the third light inlet 321 and the third light outlet 322. The third housing 32 includes opposing third top and

bottom surfaces

324 and 325. The third top surface 324 is opposite to the cover plate 63. The third bottom surface 325 is opposite to the carrying surface 611 of the substrate 61.

The third balls 34 are disposed on the third bottom surface 325. Specifically, the third bottom 325 is provided with a third groove 3251, the third ball 34 is disposed in the third groove 3251, and the third ball 34 located in the third groove 3251 of the third bottom 325 is abutted against the bottom of the sliding rail 612.

The third groove 3251 matches the shape of the third ball 34. For example, the third ball 34 has a spherical shape and a small movement resistance, the third groove 3251 has a semicircular shape, and the diameter of the third ball 34 is equal to that of the third groove 3251. That is, half of the third ball 34 is located in the third groove 3251, and the third ball 34 and the third groove 3251 are tightly combined, so that the third ball 34 moves to drive the third housing 32 to move. After the third lens assembly 30 is installed in the accommodating space 64, a part of the third ball 34 is located in the slide rail 612 and abuts against the bottom surface of the slide rail 612. Of course, the third ball 34 may also be disposed on the third top surface 324, and the corresponding third top surface 324 may also be disposed with a third groove 3251, at this time, the inner surface of the cover plate 63 may also form a second track, and the third ball 34 located in the third groove 3251 of the third top surface 324 abuts against the bottom of the second track, where the structure of the second track is similar to that of the slide rail 612, and is not described herein again. The first track and the second track can be communicated with each other to form the same track. The track is similar in structure to the slide rail 612. The third top surface 324 is provided with a third groove 3251, and a third ball 34 is correspondingly disposed, so that the movement resistance between the third housing 32 and the third top surface 324 is smaller during the movement process.

The number of the third grooves 3251 may be one or more on the third bottom 325 or the third top 324. For example, the number of the third grooves 3251 is one, two, three, four, even more, etc. In the present embodiment, the number of the third grooves 3251 is three. The number of the third balls 34 may be one or more on the third bottom surface 325 or the third top surface 324. In the present embodiment, the number of the third balls 34 is the same as that of the third grooves 3251, and is also three. Three third grooves 3251 are spaced apart on the third bottom 325.

The third groove 3251, the third ball 34 and the slide rail 612 on the third bottom surface 325 are only used as an example for description, and the relationship among the third groove 3251, the third ball 34 and the second track on the third top surface 324 is referred to for reference, and will not be described in detail. Specifically, on the third bottom surface 325, the three third grooves 3251 are divided into a first group and a second group, the first group includes one third groove 3251, the second group includes two third grooves 3251, the third groove 3251 of the first group corresponds to the first sliding rail 613, and the third groove 3251 of the second group corresponds to the second sliding rail 614. Thus, the third balls 34 corresponding to the first group of third grooves 3251 move (including sliding, rolling, or rolling while sliding) in the first slide rail 613, the third balls 34 corresponding to the second group of third grooves 3251 move in the second slide rail 614, the first group of corresponding third balls 34 and the second group of corresponding third balls 34 are respectively limited in the first slide rail 613 and the second slide rail 614, and the three third balls 34 enclose a triangle (the center of the third ball 34 located in the first slide rail 613 is the vertex of the triangle), on the premise of ensuring the motion stability, the number of the third balls 34 is reduced as much as possible, and the motion resistance can be reduced. Moreover, since in the y direction, the two opposite sides of the outer wall of the first group of corresponding third balls 34 are abutted by the two opposite sides of the inner wall of the first slide rail 613, the two opposite sides of the outer wall of the second group of corresponding third balls 34 are abutted by the two opposite sides of the inner wall of the second slide rail 614, and the three third balls 34 surround to form a triangle, so that the third housing 32 can be prevented from shaking or inclining in the y direction, thereby ensuring that the imaging quality of the imaging module 1000 is not affected. In the embodiment of the present application, the third ball 34 is disposed on the third housing 32 to achieve better movement of the third housing 32 and reduce resistance during movement.

The third slide arm 33 is provided at a side of the third housing 32. Specifically, the third slide arm 33 is located on a surface of the third housing 32 opposite the inner side surface 621 of the first side plate 625 and/or the second side plate 626. For example, the third slide arm 33 is located on the surface of the third housing 32 opposite the inner side surface 621 of the first side plate 625; alternatively, the third slide arm 33 is located on the surface of the third housing 32 opposite the inner side surface 621 of the second side plate 626; alternatively, the third slide arm 33 is located on the surface of the third casing 32 opposite to the inner side surface 621 of the first side plate 625, and on the surface of the third casing 32 opposite to the inner side surface 621 of the second side plate 626. In the present embodiment, the third slide arm 33 is located on the surface of the third casing 32 opposite to the inner side surface 621 of the second side plate 626. The third slide arm 33 is slidably disposed within the slide groove 627.

The third lens group 31 is mounted in a third housing 32. Specifically, the third lens group 31 can be mounted in the third accommodating space 323 by gluing, screwing, clamping, and the like. The third lens group 31 may include one or more lenses. For example, the third lens group 31 includes two lenses, a sixth lens 301 and a seventh lens 302, respectively. The sixth lens 301 and the seventh lens 302 may be all glass lenses or all plastic lenses, or may be partially glass lenses and partially plastic lenses. One or more lenses may be all part of a solid of revolution, or part of a solid of revolution and part of a solid of revolution. It should be noted that the explanation of the revolving body of the first lens group 11 in the foregoing embodiment is also applicable to the embodiment of the present application, and is not repeated herein.

Referring to fig. 8, in the embodiment of the present application, when the second housing 22 and the third housing 32 move, the second lens group 21 and the third lens group 31 can be respectively driven to move along the optical axis O. For example, when the zoom lens 100 switches between the short focus state and the long focus state, both the second casing 22 and the third casing 32 can move along the optical axis O, so that the second lens group 21 and the third lens group 31 can also move along the optical axis O. Specifically, when the zoom lens 100 is switched from the short focus state to the long focus state, the second housing 22 and the third housing 32 move along the optical axis O toward the object side of the zoom lens 100, thereby bringing the second lens group 21 and the third lens group 31 to move toward the object side of the zoom lens 100. When the zoom lens 100 is switched from the telephoto state to the short focus state, the second housing 22 and the third housing 32 move along the optical axis O toward the image side of the zoom lens 100, thereby moving the second lens group 21 and the third lens group 31 toward the image side of the zoom lens 100.

Referring to fig. 3 and 4, the prism 40 is disposed on the object side of the first lens assembly 10. The prism assembly 40 can be mounted on the supporting surface 611 by gluing, screwing, or clamping, and the prism assembly 40 can be integrally formed with the substrate 61. The prism assembly 40 includes a light inlet through hole 41, a light outlet through hole 42, and a fourth accommodating space 43. The light inlet through hole 41 and the light outlet through hole 42 communicate the fourth accommodating space 43 with the accommodating space 64. The prism assembly 40 includes a prism 401, and the prism 401 is disposed in the fourth accommodating space 43. Specifically, the prism 401 may be mounted in the fourth accommodating space 43 by gluing, clamping, or the like. The prism 401 includes an entrance face 4011, a reflection face 4012, and an exit face 4013. The reflecting surface 4012 obliquely connects the incident surface 4011 and the exit surface 4013, and the included angle between the reflecting surface 4012 and the bearing surface 611 can be 15 degrees, 30 degrees, 45 degrees, 60 degrees, 75 degrees, and the like. In this embodiment, the included angle between the reflecting surface 4012 and the supporting surface 611 is 45 degrees. The incident surface 4011 faces the light entrance through hole 41, and the exit surface 4013 faces the light exit through hole 42. The prism 401 is used to change the exit direction of the light entering from the light entrance through hole 41. The prism 401 may be a triangular prism, and specifically, the cross section of the prism 401 is a right triangle, two legs of which are formed by the incident surface 4011 and the exit surface 4013, respectively, and a hypotenuse of which is formed by the reflecting surface 4012.

During the switching of the zoom lens 100 between the short focus state and the long focus state, the position of the prism assembly 40 on the optical axis O remains fixed. The prism assembly 40 is used for changing the incident direction of incident light of the zoom lens 100 to realize a periscopic structure of the zoom lens 100, so that the imaging module 1000 can be transversely installed on the electronic device 3000, occupy the size of the electronic device 3000 in the width direction as much as possible, reduce the size of the electronic device 3000 in the thickness direction, and meet the light and thin requirements of users on the electronic device 3000.

Referring to fig. 7 and 8, the filter 50 is disposed between the third lens assembly 30 and the photosensitive element 200. When the zoom lens 100 is switched between the short focus state and the long focus state, the filter 50 remains fixed on the optical axis O. The filter 50 may be an IR pass filter, an IR cut filter, or the like, and different types of filters may be used according to actual applications. For example, when the imaging module 1000 uses an IR pass filter, only infrared light is allowed to pass through the filter 50 to the photosensitive element 200, and the imaging module 1000 acquires an infrared image which can be used for iris recognition, or depth information as a structured light image for structured light distance measurement, or 3D modeling together with a visible light image, or binocular distance measurement, etc. When the imaging module 1000 employs an IR cut filter, infrared light is not allowed to pass through the filter 50, but visible light is allowed to pass through the filter 50 to reach the photosensitive element 200, and the visible light image acquired by the imaging module 1000 can be used as a general shooting requirement.

Referring to fig. 3, 4 and 6, the driving member 70 includes a second driving member 72 and a third driving member 73. The second actuator 72 is connected to the second housing 22 of the second lens assembly 20 and the third actuator 73 is connected to the third housing 32 of the third lens assembly 30. The second driving component 72 is used for driving the second housing 22 to move, so as to drive the second lens group 21 in the second housing 22 to move along the optical axis O; the third driving member 73 is used for driving the third casing 32 to move, so as to drive the third lens group 31 in the third casing 32 to move along the optical axis O.

The second driver 72 includes a second coil 721 and a second magnet 722.

The second coil 721 is one or more, for example, the number of the second coil 721 is one, two, three, four, or even more, etc. The second coil 721 is provided on the first side plate 625 or the second side plate 626. In the present embodiment, the number of the second coils 721 is one, and the second coils 721 are provided on the first side plate 625. Specifically, the second coil 721 may be mounted on the first side plate 625 by gluing, screwing, snap-fitting, or the like. In other embodiments, there are two second coils 721, and the two second coils 721 are oppositely disposed on the first side plate 625 and the second side plate 626, respectively. The second coil 721 may be disposed at any position of the first side plate 625. For example, the second coil 721 may be disposed on the inner side 621 of the first side plate 625, between the second lens group 21 and the third lens group 31; alternatively, the second coil 721 may be disposed on the inner side 621 of the first side plate 625, between the first lens group 11 and the second lens group 21, and so on, which will not be described herein. In the present embodiment, the second coil 721 is provided on the inner surface 621 of the first side plate 625 and is positioned between the second lens group 21 and the third lens group 31. In other embodiments, the second coil 721 may be disposed on the second housing 22 opposite the second magnet 722.

The second magnet 722 is coupled to the second housing 22, and the second magnet 722 may be disposed at any position of the second housing 22. For example, the second magnet 722 is disposed on the surface of the second housing 22 opposite to the third lens assembly 30, or the second magnet 722 is disposed on the surface of the second housing 22 opposite to the first lens assembly 10, etc. In this embodiment, the second magnet 722 is disposed on the surface of the second housing 22 opposite to the third lens assembly 30. The second magnet 722 may be mounted to the second housing 22 by screwing, gluing, snap-fitting, or the like. The second magnet 722 may be a metal having magnetism, for example, the second magnet 722 may be any one of iron, cobalt, and nickel, or the second magnet 722 may be an alloy composed of at least two of iron, cobalt, and nickel.

The third driver 73 includes a third coil 731 and a third magnet 732.

The third coils 731 are one or more, for example, the number of the third coils 731 is one, two, three, four, or even more. The third coil 731 is disposed on the first side plate 625 or the second side plate 626. In the present embodiment, the number of the third coils 731 is one, and the third coils 731 are provided on the first side plate 625. Specifically, the third coil 731 may be mounted on the first side plate 625 by gluing, screwing, snap-fitting, or the like. In other embodiments, there are two third coils 731, and the two third coils 731 are oppositely disposed on the first side plate 625 and the second side plate 626, respectively. The third coil 731 may be disposed at any position of the first side plate 625. For example, the third coil 731 may be disposed on the inner side surface 621 of the first side plate 625, between the third lens group 31 and the photosensitive element 200; alternatively, the third coil 731 may be disposed on the inner side 621 of the first side plate 625, between the second lens group 21 and the third lens group 31, and so on, and will not be described in detail herein. In the present embodiment, the third coil 731 is disposed on the inner surface 621 of the first side plate 625 and between the third lens group 31 and the photosensitive element 200. In other embodiments, the third coil 731 may be disposed on the third housing 32 opposite the third magnet 732.

The third magnet 732 is coupled to the third housing 32, and the third magnet 732 may be disposed at any position of the third housing 32. For example, the third magnet 732 is provided on the surface of the third housing 32 facing the photosensitive element 200, or the third magnet 732 is provided on the surface of the third housing 32 facing the second lens unit 20, or the like. In the present embodiment, the third magnet 732 is provided on the surface of the third housing 32 facing the photosensitive element 200. The third magnet 732 may be mounted to the third housing 32 by screwing, gluing, engaging, or the like. The third magnet 732 may be a metal having magnetism, for example, the third magnet 732 may be any one of iron, cobalt, and nickel, or the third magnet 732 may be an alloy consisting of at least two of iron, cobalt, and nickel.

When the second coil 721 is energized, a lorentz force is generated between the second coil 721 and the second magnet 722, and the second magnet 722 is pushed by the lorentz force to move the second lens assembly 20 along the first slide rail 613 and the second slide rail 614. When the third coil 731 is energized, a lorentz force is generated between the third coil 731 and the third magnet 732, and the third magnet 732 is pushed by the lorentz force to move the third lens assembly 30 along the first rail 613 and the second rail 614. The zoom lens 100 controls the second lens assembly 20 to move in the x-direction by energizing the second coil 721, and controls the third lens assembly 30 to move in the x-direction by energizing the third coil 731. In addition, the second coil 721 and the third coil 731 can be energized simultaneously, i.e. the second lens assembly 20 and the third lens assembly 30 are moved simultaneously, to save moving zoom time of the zoom lens 100. It should be noted that the second coil 721 and the third coil 731 are energized in the same direction, so that the second lens assembly 20 and the third lens assembly 30 move in the same direction on the optical axis O at the same time. The current levels of the second coil 721 and the third coil 731 may be the same or different, and when the current levels of the second coil 721 and the third coil 731 are the same, the second lens assembly 20 and the third lens assembly 30 move on the optical axis O synchronously. The second coil 721 and the third coil 731 are energized simultaneously, and the magnitude and direction of the applied current are the same, so that the second lens assembly 20 and the third lens assembly 30 move synchronously on the optical axis O, and the zoom control logic of the zoom lens 100 is reduced. Of course, the second coil 721 and the third coil 731 may not be energized at the same time, so that magnetic fields generated after the second coil 721 and the third coil 731 are energized are prevented from being influenced by each other, and the moving accuracy can be improved.

In the process of switching the zoom lens 100 from the short focus state to the long focus state, the second coil 721 and the third coil 731 are controlled to be energized. For example, the second coil 721 and the third coil 731 are controlled to pass a current in a first direction, so that the second lens assembly 20 and the third lens assembly 30 move toward the object side of the zoom lens 100, thereby switching the zoom lens 100 from the short focus state to the long focus state. When the zoom lens 100 is switched from the telephoto state to the telephoto state, the second coil 721 and the third coil 731 are controlled to be energized. For example, the second coil 721 and the third coil 731 are controlled to pass current opposite to the first direction, so that the second lens assembly 20 and the third lens assembly 30 move towards the image side direction of the zoom lens 100, thereby switching the zoom lens 100 from the telephoto state to the telephoto state. The current applied to the second coil 721 and the third coil 731 can be the same, so as to achieve the synchronous movement of the first lens group 11 and the third lens group 31, and simplify the control logic of the zoom lens 100 during zooming.

Referring to fig. 5 and 7, spacer assemblies 80 are disposed between the second lens assembly 20 and the side plate 62 and/or between the third lens assembly 30 and the side plate 62. That is, the spacer assembly 80 may be disposed between the second lens assembly 20 and the side plate 62; alternatively, the spacer assembly 80 is disposed between the third lens assembly 30 and the side plate 62; alternatively, the spacer assemblies 80 are disposed between both the second lens assembly 20 and the side plate 62 and between the third lens assembly 30 and the side plate 62.

When the spacer assembly 80 is disposed between both the second lens assembly 20 and the side plate 62 and between the third lens assembly 30 and the side plate 62, the spacer assembly 80 may include a first spacer 81 and a second spacer 82. The first spacer 81 may be flexible and the second spacer 82 may also be flexible. At this time, the first spacer 81 and the second spacer 82 may be made of a flexible material, such as silicon gel.

The first spacer 81 is disposed on the first side plate 625 and received in the first stopper 629, and the first spacer 81 is used to space the second lens assembly 20 from the side plate 62 in the optical axis O direction (for example, when the second lens assembly 20 moves along the optical axis O relative to the imaging surface 90, the first spacer 81 may space the second lens assembly 20 from the side plate 62 in the optical axis O direction). It is understood that when the zoom lens 100 switches between the short focus state and the long focus state, or the electronic device 3000 is subjected to a severe impact, the second lens assembly 20 may move along the optical axis O in the image side direction and impact the side plate 62, thereby generating noise. In the embodiment of the present application, the flexible first spacer 81 can separate the second lens assembly 20 and the side plate 62 in the optical axis O direction, so as to effectively reduce the noise inside the zoom lens 100 when zooming or being severely impacted.

The second spacer 82 is disposed on the second side plate 626 and received in the second stopper 630, and the second spacer 82 is used for spacing the third lens assembly 30 from the side plate 62 in the optical axis O direction (for example, when the third lens assembly 30 moves along the optical axis O relative to the imaging surface 90, the second spacer 82 may space the third lens assembly 30 from the side plate 62 in the optical axis O direction). It is understood that when the zoom lens 100 switches between the short focus state and the long focus state, or the electronic device 3000 is subjected to a severe impact, the third lens assembly 30 may move along the optical axis O in the object-side direction and impact the side plate 62, thereby generating noise. In the embodiment of the present application, the flexible second spacer 82 can separate the third lens element 30 and the side plate 62 in the optical axis O direction, so as to effectively reduce the noise inside the zoom lens 100 when zooming or being severely impacted.

During the movement of the second and

third lens assemblies

20, 30 along the optical axis O, the second sliding arm 23 is used to abut against the first spacer 81 or the third sliding arm 33 is used to abut against the second spacer 82 to space the second and

third lens assemblies

20, 30. Specifically, in the process that the second lens assembly 20 moves towards the image side along the optical axis O, the second sliding arm 23 is used for abutting against the first spacer 81 to space the second lens assembly 20 and the third lens assembly 30, so as to avoid the collision between the second lens assembly 20 and the third lens assembly 30 and reduce noise. During the process of moving the third lens assembly 30 toward the object side along the optical axis O, the third sliding arm 33 is used to abut against the second spacer 82 to space the second lens assembly 20 from the third lens assembly 30, so as to avoid the second lens assembly 20 from colliding with the third lens assembly 30, thereby reducing noise.

The arrangement of the first spacer 81 and the second spacer 82 can effectively reduce the noise inside the zoom lens 100 when zooming or being severely impacted. In other embodiments, the spacer assembly 80 may further include more flexible spacers, and the specific number of spacers may be specifically designed based on the actual situation. For example, the spacer assembly 80 may further include a flexible third spacer (not shown) and a flexible fourth spacer (not shown). A third spacer may be provided on the first side plate 625 for spacing the second lens assembly 20 from the side plate 62 in the direction of the optical axis O when the second lens assembly 20 is moved along the optical axis O relative to the imaging surface 90. It is understood that when the zoom lens 100 switches between the short focus state and the long focus state, or the electronic device 3000 is subjected to a severe impact, the second lens assembly 20 may move along the optical axis O in the object-side direction and impact the side plate 62, thereby generating noise. In the present embodiment, the flexible third spacer can space the second lens assembly 20 and the side plate 62 in the optical axis O direction, thereby effectively reducing the noise inside the zoom lens 100 when the zoom lens is zoomed or is severely impacted. A fourth spacer is provided on the second side plate 626 for spacing the third lens assembly 30 from the side plate 62 in the direction of the optical axis O when the third lens assembly 30 is moved relative to the imaging surface 90 along the optical axis O. It is understood that when the zoom lens 100 switches between the short focus state and the long focus state, or the electronic device 3000 is subjected to a severe impact, the third lens assembly 30 may move along the optical axis O in the image side direction and impact the side plate 62, thereby generating noise. In the embodiment of the present application, the flexible fourth spacer can separate the third lens element 30 and the side plate 62 in the optical axis O direction, so as to effectively reduce the noise inside the zoom lens 100 when zooming or being severely impacted.

In the description herein, reference to the description of the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art within the scope of the present application, which is defined by the claims and their equivalents.

Claims

1. A zoom lens, comprising:

a housing including a base plate and a side plate disposed on the base plate;

the zoom lens comprises a first lens assembly, a second lens assembly and a third lens assembly which are arranged in the shell from the object side to the image side, wherein when the zoom lens is switched between a short-focus state and a long-focus state, the first lens assembly is kept fixed relative to an imaging surface of the zoom lens, and the second lens assembly and the third lens assembly move relative to the imaging surface along an optical axis of the zoom lens; and

a spacer assembly disposed between the second lens assembly and the side plate and/or between the third lens assembly and the side plate.

2. The zoom lens according to claim 1, wherein the spacer assembly includes a first spacer provided on the side plate for spacing the second lens assembly from the side plate in the optical axis direction, and a second spacer provided on the side plate for spacing the third lens assembly from the side plate in the optical axis direction.

3. The zoom lens according to claim 2, wherein the side plates include a first side plate and a second side plate parallel to the optical axis direction, the first side plate being opposite to the second side plate, the side plates further including a first stopper portion extending from the first side plate for receiving the first spacer and a second stopper portion extending from the second side plate for receiving the second spacer.

4. The zoom lens according to claim 1, further comprising a prism assembly, wherein the prism assembly, the first lens assembly, the second lens assembly and the third lens assembly are arranged in this order in an object-to-image direction of the zoom lens.

5. The zoom lens according to claim 1, wherein when the zoom lens is switched from a short-focus state to a long-focus state, the second lens assembly and the third lens assembly are moved toward the object side of the zoom lens along the optical axis;

when the zoom lens is switched from a long-focus state to a short-focus state, the second lens assembly and the third lens assembly move towards the image side of the zoom lens along the optical axis.

6. The zoom lens according to claim 1, wherein the side plate has a sliding groove formed therein, the sliding groove extending in the optical axis direction;

the first lens assembly comprises a first lens group and a first housing, the first lens group being mounted within the first housing;

the second lens assembly comprises a second lens group, a second shell and a second sliding arm arranged at the side edge of the second shell, and the second lens group is arranged in the second shell;

the third lens component comprises a third lens group, a third shell and a third sliding arm arranged at the side edge of the third shell, and the third lens group is arranged in the third shell; wherein:

the second sliding arm and the third sliding arm are movably arranged in the sliding groove, and the second shell and the third shell respectively drive the second lens set and the third lens set to move along the optical axis when moving.

7. The zoom lens according to claim 6, wherein the spacer assembly includes a first spacer provided on the side plate for spacing the second lens assembly from the side plate in the optical axis direction, and a second spacer provided on the side plate for spacing the third lens assembly from the side plate in the optical axis direction;

the second sliding arm is used for abutting against the first spacing piece or the third sliding arm is used for abutting against the second spacing piece to space the second lens component and the third lens component in the process that the second lens component and the third lens component move along the optical axis.

8. The zoom lens of claim 6, wherein the second lens assembly further comprises a second ball disposed on a bottom surface of the second housing opposite the substrate; the third lens assembly further comprises a third ball disposed on a bottom surface of the third housing opposite the substrate; and/or

The housing further comprises a cover plate, the second lens assembly further comprises a second ball disposed on a bottom surface of the second housing opposite the cover plate; the third lens assembly further includes a third ball disposed on a bottom surface of the third housing opposite the cover plate.

9. The zoom lens of claim 6, further comprising a driving element disposed in the housing, the driving element being respectively connected to the second housing and the third housing, the driving element being configured to respectively drive the second housing and the third housing to move so as to drive the second lens group and the third lens group to move along the optical axis.

10. The zoom lens according to claim 6, wherein the first lens group comprises one or more lenses, the second lens group comprises one or more lenses, the third lens group comprises one or more lenses, and at least one of the lenses is shaped as a part of a solid of revolution.

11. The utility model provides an imaging module, its characterized in that, imaging module includes:

a photosensitive element; and

the zoom lens according to any one of claims 1 to 10, wherein the light-sensing element is provided on an image side of the zoom lens.

12. An electronic device comprising the imaging module of claim 11 and a chassis, the imaging module being mounted on the chassis.