CN111239955A

CN111239955A - Lens, camera module and electronic equipment

Info

Publication number: CN111239955A
Application number: CN202010188754.XA
Authority: CN
Inventors: 江传东
Original assignee: Nanchang OFilm Optoelectronics Technology Co Ltd
Current assignee: Nanchang OFilm Tech Co Ltd; Nanchang OFilm Optoelectronics Technology Co Ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-06-05

Abstract

The application discloses camera lens, camera module and electronic equipment. The lens comprises a lens group and a lens barrel, wherein the lens barrel is of a hollow structure, the lens barrel is provided with N light inlets which are mutually spaced, N is an integer which is greater than or equal to 2, and the lens group is fixed on the inner side of the lens barrel; the lens group is including piling up K lenses of setting in proper order, and K is more than or equal to 1's integer, every the lens is integrated into one piece structure, and every lens all includes N lens unit, and the lens group includes N lens region, and the ith lens unit of K lens is located ith lens region, and i is more than or equal to 1, is less than or equal to N's integer, and N lens region one-to-one is just to N light inlet. The lens provided by the application integrates the lenses comprising the plurality of lens units, so that the lenses for realizing multiple light paths can be arranged in one lens barrel, and the assembling process of the lens for multiple light paths is simplified.

Description

Lens, camera module and electronic equipment

Technical Field

The application relates to the technical field of camera shooting, in particular to a lens, a camera shooting module and electronic equipment.

Background

With the continuous improvement of living standard of people, consumers have higher and higher requirements on the shooting function of electronic equipment, such as mobile phones. For satisfying the high demand that the user shot the function to electronic equipment, many cameras have appeared in the module of making a video recording. In the conventional technology, the plurality of lenses include a plurality of lens barrels and a plurality of lenses installed in each lens barrel, and the plurality of lenses are respectively installed in each lens barrel, which results in a complicated process of assembling the plurality of lenses, so that the assembling efficiency of the plurality of lenses is low.

Disclosure of Invention

Based on the above problem, the present application provides a multi-lens with a simple assembly flow. The application provides a camera lens, the lens integration that will include a plurality of lens units has realized the simplification of the equipment of many light path camera lenses, has increased packaging efficiency. The application also provides a camera module comprising the lens and electronic equipment.

In a first aspect, the present application provides a lens barrel. The lens comprises a lens group and a lens barrel, wherein the lens barrel is of a hollow structure, the lens barrel is provided with N light inlets which are mutually spaced, N is an integer which is more than or equal to 2, and the lens group is fixed on the inner side of the lens barrel;

the lens group is including piling up K lenses of setting in proper order, and K is more than or equal to 1's integer, every the lens is integrated into one piece structure, every the lens all includes N lens unit, the lens group includes N lens region, the ith lens unit of K lens is located ith lens region, and i is more than or equal to 1, is less than or equal to N's integer, N lens region one-to-one just right N advances light mouthful.

On the one hand, in this application embodiment, install K lenses in the lens cone, and every lens all includes N lens unit, N lens unit and N light inlet one-to-one for the camera lens only need install a plurality of lenses in same lens cone can accomplish the equipment of multi-optical path camera lens, need not to assemble a plurality of lenses respectively in a plurality of lens cones and accomplish the equipment of multi-optical path camera lens, simplified the assembly process of the camera lens of multi-optical path, thereby improved the packaging efficiency of the camera lens of multi-optical path. It will be appreciated that each lens unit for the K mirrors can form one optical path.

On the other hand, in the embodiment of the present application, each lens is an integrally formed structure, and the lens including N lens units can be installed in one lens barrel, so that the lens barrels in the multi-optical-path lens are integrated into a whole, thereby achieving the effect of multiplexing the lens barrels, avoiding the problem that the lens forming the multi-optical path is provided with a plurality of lens barrels to increase the distance between two adjacent lens units, and being beneficial to the miniaturization of the lens. Meanwhile, due to the fact that the plurality of lens units forming the multiple light paths are integrally formed, when each lens is installed on the lens barrel, the directions of optical axes forming the multiple light paths of the lenses are the same (the optical axes are parallel), and the phenomenon that the optical axes of the plurality of lens units are not parallel due to the fact that the plurality of lens units forming the multiple light paths are installed in the lens barrel respectively is avoided, so that the parallelism of the optical axes forming the multiple light paths of the lens is not needed to be corrected, time for correcting the parallelism of the optical axes of the plurality of lens units is saved, and the assembling efficiency of the lens is improved.

In one embodiment, each of the lenses further includes a connecting unit connected between two adjacent lens units, the connecting unit includes a first surface and a second surface that are opposite to each other, and the first surface is parallel to the second surface; the lens further comprises a light shielding sheet, and the light shielding sheet is attached to the first surface and/or the second surface.

In the embodiment of the application, the light shielding sheet is located between two adjacent lens units, so that the mutual interference of the light incoming amount of external light passing through each lens unit from each light incoming port is avoided, and the function of forming multiple groups of light paths by the lens is ensured.

In an embodiment, the lens further includes a press ring, the press ring is located on one side of the lens group away from the light inlet, and the press ring is installed on the surface of the lens which is farthest away from the light inlet.

In this application embodiment, the clamping ring not only can be fixed in lens group on the lens-barrel firmly to guarantee the reliability of camera lens, also can play the effect of shading moreover, avoid the light mutual interference of two adjacent lens units in the lens.

In one embodiment, the K lenses include N lens groups, K ith lens units located in the ith lens area of the K lenses form an ith lens group, K mth lens units located in the mth lens area of the K lenses form an mth lens group, m is an integer greater than or equal to 1 and less than or equal to N, and m is different from i; the focal length of the ith lens group is greater than or less than the focal length of the mth lens group. That is, the focal length of the K ith lens unit is greater than or less than the focal length of the K mth lens unit.

It is understood that the focal lengths of at least two lens groups in the N lens groups formed by the K lenses are different. The focal length of the ith lens unit of the K lenses with at least one lens is different from that of the mth lens unit, so that the focal lengths of at least two lens groups in the N lens groups are different.

In the embodiment of the present application, the focal lengths of at least two lens groups exist in N lens groups formed by K lenses, so that the focal lengths of at least two optical path lenses in the multi-optical path lens are different, and the lens has a function of implementing background blurring.

In one embodiment, the lens barrel further includes N apertures, the N apertures correspond to the N lens units one by one, the size of the i-th aperture corresponding to the i-th lens unit is Fi, the size of the m-th aperture corresponding to the m-th lens unit is Fm, m is an integer greater than or equal to 1 and less than or equal to N, m is different from i, and Fi is greater than or less than Fm.

In the embodiment of the application, the N apertures correspond to the N lens units one by one, wherein at least two apertures in the N apertures have different sizes, so that the light incoming quantities of at least two optical path lenses in the multi-optical path lens are different, and the imaging quality of the lens is improved.

In a second aspect, the present application further provides a camera module. The camera module comprises a circuit board, a photosensitive element and the lens, wherein the circuit board is positioned on the light emitting side of the lens, and the photosensitive element is arranged on the circuit board and faces the lens.

In this application embodiment, the module of making a video recording includes this camera lens, not only can realize the function of the many cameras of module of making a video recording, also can realize the miniaturization of the module of making a video recording.

In one embodiment, the number of the photosensitive elements is N, the N photosensitive elements are arranged on the circuit board at intervals, and the N photosensitive elements correspond to the N lens units one by one.

In the embodiment of the application, the plurality of lenses correspond to the plurality of photosensitive elements one to one, so that the plurality of photosensitive elements can be assembled respectively, photosensitive areas on each photosensitive element can be adjusted according to requirements, and the condition that the plurality of photosensitive areas are arranged on one photosensitive element to enable the relative position of each photosensitive area to be unadjustable is avoided. And a plurality of photosensitive element and a plurality of camera lens one-to-one for a plurality of photosensitive element can adopt the conventional ripe sensitization chip, not only make the raw and other materials of module of making a video recording obtain easily, have also guaranteed the reliability of the module of making a video recording.

In one embodiment, the number of the circuit boards is N, the N circuit boards are arranged at intervals, and the N photosensitive elements are mounted on the N circuit boards in a one-to-one correspondence manner.

In this application embodiment, N photosensitive element installs in N circuit boards one-to-one for photosensitive element installs the equipment of circuit board and can directly adopt traditional equipment, and photosensitive element and the circuit board improvement to the module of making a video recording are less, thereby make the module of making a video recording obtain more easily.

In one embodiment, the camera module further includes a filter and a support, the filter is located between the photosensitive element and the lens, the support is mounted on the circuit board, the lens barrel is located on a side of the support away from the circuit board, and the filter is mounted on the support; or

The camera module further comprises an optical filter and a packaging body, the optical filter is located between the photosensitive element and the lens, the packaging body is fixed on the circuit board, and the optical filter is arranged on one side, close to the lens barrel, of the packaging body.

It can be understood that the optical filters are located between the photosensitive element and the lens, the number of the optical filters is N, and the N optical filters correspond to the N lens units one to one.

In this application embodiment, the optical filter can filter the parasitic light in the external light, avoids the parasitic light formation of image on photosensitive element for the photo that the module of making a video recording was taken is more true, thereby improves the imaging quality of the module of making a video recording.

In one embodiment, the base is fixed on the circuit board, and the optical filter and the lens barrel are directly mounted on the base, so that the camera module does not need to be provided with a packaging body, the step of forming the packaging body by adopting a Molding process is saved, and the assembly efficiency of the camera module is improved.

In an embodiment, the image pickup module further includes a bracket, the bracket is mounted on a side of the package body close to the lens barrel, and the optical filter is mounted on the bracket.

In this application embodiment, the light filter adopts traditional ripe technology to pass through the support fixed for photosensitive element can the direct fixation in the surface of circuit board, has reduced the degree of difficulty of the module mounting process of making a video recording, has improved the module installation effectiveness of making a video recording, also can guarantee the yield of the module of making a video recording.

In an embodiment, the camera module further includes a bonding wire, one end of the bonding wire is connected to the photosensitive element, the other end of the bonding wire is connected to the circuit board, and the bonding wire is wrapped by the package.

In the embodiment of the application, the bonding wire realizes the electric connection between the photosensitive element and the circuit board, and the packaging body wraps the bonding wire, so that the bonding wire is prevented from interfering other components, and the phenomenon of disordered wiring arrangement on the circuit board is also avoided.

In one embodiment, the circuit board is provided with an accommodating space, and the photosensitive element is accommodated in the accommodating space.

In the embodiment of the application, the photosensitive element is accommodated in the accommodating space, so that the photosensitive element and the circuit board are spatially multiplexed in the thickness direction, the thickness of the camera module is reduced, and the miniaturization of electronic equipment is facilitated.

In an embodiment, the camera module further includes a support, the support is mounted on the circuit board, the lens barrel is located on a side of the support away from the circuit board, and the optical filter is mounted on the support.

It can be understood that, in this embodiment, the support member is directly mounted on the circuit board, so that the camera module does not need to be provided with a package body, the step of forming the package body by using a Molding process is omitted, and the assembly efficiency of the camera module is improved.

In a third aspect, the present application further provides an electronic device. The electronic equipment comprises a shell and the camera module, and the camera module is installed on the shell.

In the embodiment of the present application, on one hand, the lens forming the multiple groups (N groups) of optical paths only includes one lens barrel and the lens installed in the lens barrel, so that the lens barrel achieves spatial multiplexing, and the increase of the size of the lens due to the arrangement of the plurality of lens barrels in the multi-optical path lens is avoided, thereby being beneficial to the miniaturization of the camera module.

On the other hand, the lens is provided with a plurality of (N) lens units matched with the quantity of the light inlet of the lens cone, and the plurality of lens units are integrally formed, so that the lens forming the multi-light path is arranged on the lens cone, the directions of the optical axes of the plurality of light path lenses are the same (the optical axes are parallel), and the phenomenon that the plurality of lens units are not parallel to the optical axes of the plurality of lens units when being respectively arranged on different lens cones is avoided, so that the parallelism of the optical axes of the multi-light path lenses is not required to be corrected, the time for correcting the parallelism of the optical axes of the plurality of lens units is saved, and the.

Drawings

In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of an electronic device provided herein;

FIG. 2 is a schematic cross-sectional view of the camera module of FIG. 1 in a first embodiment;

FIG. 3 is a schematic cross-sectional view of a lens in the configuration shown in FIG. 2;

FIG. 4 is a schematic cross-sectional view of the camera module of FIG. 1 in a second embodiment;

FIG. 5 is a schematic cross-sectional view of the camera module of FIG. 1 in a third embodiment;

FIG. 6 is a schematic cross-sectional view of the camera module of FIG. 1 in a fourth embodiment;

fig. 7 is a schematic cross-sectional view of the camera module shown in fig. 1 in a fifth embodiment.

Detailed Description

Technical solutions in embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, and not all embodiments. In the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

The embodiment of the application provides electronic equipment. The electronic device can be a mobile phone, a tablet computer, an electronic reader, a notebook computer, a vehicle-mounted device, a wearable device and the like. In the embodiment of the present application, the electronic device is described as a mobile phone.

Referring to fig. 1, an electronic apparatus 100 includes a housing 101 and a camera module 102. The camera module 102 is mounted on the housing 101. The camera module 102 enables the electronic device 100 to achieve functions of capturing images or instant video calls. The electronic device 100 is provided with a light-transmitting region 103. The light-transmitting area 103 allows external light to enter the camera module 102, so as to obtain an image. In the embodiment of the present application, the camera module 102 includes a plurality of light inlets, and correspondingly, the number of the light-transmitting areas 103 is also a plurality.

Further, referring to fig. 2 and fig. 3, the camera module 102 includes a lens 21, a circuit board 22 and a photosensitive element 23. The circuit board 22 is located on the light exit side of the lens 21. The light sensing element 23 is mounted on the circuit board 22 and disposed facing the lens 21. After passing through the lens 21, the external light is finally imaged on the photosensitive element 23, and the photosensitive element 23 converts the optical signal into an electrical signal and transmits the electrical signal to the circuit board 22.

As shown in fig. 3, the lens 21 includes a lens group 211 and a lens barrel 212. The lens barrel 212 has a hollow structure. The lens group 211 is fixed inside the lens barrel 212. That is, the lens barrel 212 is used for fixing the lens group 211, and the lens barrel 212 surrounds the periphery of the lens group 211. The lens barrel 212 has N light inlets 2120 spaced apart from each other, where N is an integer greater than or equal to 2. The lens barrel 212 has one or more light outlets opposite to the N light inlets 2120. It is understood that the barrel 212 is integrally formed. The light enters the barrel 212 from the N light inlets 2120, forming N sets of light paths. As shown in fig. 3, the lens barrel 212 has 2 light inlets 2120 spaced apart from each other, that is, in the embodiment of the present application, N is 2. In other embodiments, the number of the light inlets 2120 may also be 3 or other numbers, and the application is not limited thereto.

Further, the lens group 211 includes K lenses 213 stacked in sequence, where K is an integer greater than or equal to 1. Each lens 213 is of unitary construction. As shown in fig. 2, the number of the lenses 213 is 4. In the embodiment of the present application, the lens group 211 includes 4 lenses 213, and in other embodiments, the number of the lenses 213 may be other numbers, which is not limited in the present application.

Each mirror 213 includes N lens units 214. The lens group 211 includes N lens regions. The same lens unit 214 of the K mirrors 213 is located in the same lens area. It is understood that the i-th lens unit 214 of the K mirrors 213 is located at the i-th lens area, and i is an integer greater than or equal to 1 and less than or equal to N. For example, lens group 211 includes a first lens region, a second lens region … … and an Nth lens region, each lens unit 214 includes a first lens unit, a second lens unit … … and an Nth lens unit, the K first lens units are located in the first lens region, the K second lens units are located in the second lens region … …, and the K Nth lens units are located in the Nth lens region.

In the embodiment shown in fig. 3, N is 2 and K is 4, i.e., the lens group 211 includes two lens regions (a first lens region 2111 and a second lens region 2112), each lens element 213 includes two lens units 214 (a first lens unit 2141 and a second lens unit 2142), each first lens unit 2141 is located in the first lens region 2111, and each second lens unit 2142 is located in the second lens region 2112.

The N lens regions are opposite to the N light inlets 2120 in a one-to-one correspondence. It is understood that N lens units 214 correspond to N light inlets 2120 one to one, so that the lens 21 forms N cameras. The N lens units 214 may be the same or different, that is, the N groups of optical paths formed by the lens 21 may be the same or different. In the embodiment of the present application, the description is given by taking the example that N sets of optical paths are the same.

On the one hand, in the embodiment of the present application, K lenses 213 are installed in the lens barrel 212, and each lens 213 includes N lens units 214, where the N lens units 214 correspond to the N light inlets 2120 one by one, so that the lens 21 only needs to install the lenses 213 in the same lens barrel 212 to complete the assembly of the multi-light path lens, and does not need to assemble the lenses in the lens barrels respectively to complete the assembly of the multi-light path lens, thereby simplifying the assembly process of the multi-light path lens 21, and improving the assembly efficiency of the multi-light path lens 21. It is understood that each lens unit 214 corresponding to the K mirrors 213 can form one optical path. Meanwhile, since the plurality of lens units 214 forming the multi-light path are integrally formed, when each lens 213 is mounted on the lens barrel 212, the directions of the optical axes forming the multi-light path lenses 213 are the same (the optical axes are parallel), and the phenomenon that the optical axes of the plurality of lens units 214 are not parallel due to the fact that the plurality of lens units 214 forming the multi-light path are respectively mounted when the plurality of lens units 214 are mounted is avoided, so that the parallelism of the optical axes forming the multi-light path lens 21 does not need to be corrected, the time for correcting the parallelism of the optical axes of the plurality of lens units is saved, and the assembly efficiency of.

On the other hand, when the lens 21 is used for a front camera module of the electronic device 100, because each lens 213 is an integrally formed structure, the lens 213 including the N lens units 214 can be installed in one lens barrel 212, so that the lens barrels 212 in the multi-optical-path lens are integrated into a whole, the multiplexing effect of the lens barrels 212 is achieved, the lens 21 forming the multi-optical-path is prevented from being provided with a plurality of lens barrels 212, the distance between any two lens units 214 is reduced, which is not only beneficial to the miniaturization of the lens 21, but also the difference of images shot by the N lenses formed by the N lens units 214 is small, and thus the effect of forming a final imaging picture after the image shot by the N lenses is fused by the camera module 102 is better.

It can be understood that when the lens 21 is used for a front camera module, the smaller the pitch of the lens units 214 in the lens 21, the smaller the difference of the shot images, and therefore the better the image formed by fusing the lens units. When the lens 21 is applied to a rear camera module, due to the high functionality of the rear camera module, for example, distance measurement or 3D modeling, the distance between lens units in the lens 21 applied to the rear camera module is large.

Further, the photosensitive element 23 includes N photosensitive regions arranged at intervals. The N photosensitive regions correspond one-to-one to the N lens units 214. That is, the number of light sensing regions in the light sensing element 23 is the same as the number of light inlets 2120 in the lens barrel 212, and the number is greater than or equal to 2. It can be understood that the external light enters the lens barrel 212 through the N light inlets 2120, respectively, and correspondingly passes through the N lens units 214 of each lens 213, and finally forms an image on the corresponding photosensitive area on the photosensitive element 23, so that the camera module 102 forms a dual-shot or multi-shot camera module.

The lens 21 provided by the present application includes N (at least two) lenses, wherein in the embodiment of the present application, N is 2 for description, that is, in the embodiment of the present application, the image capture module 102 is taken as an example of a dual-lens image capture module for description. As shown in fig. 2, the side of the lens barrel 212 away from the circuit board 22 is provided with two light inlets 2120, and correspondingly, two lens units 214. In other embodiments, the number of lenses in the camera module 102 may also be 3 or other numbers, which is not limited in this application.

In the embodiment of the application, the camera module comprises N (at least two) lenses, so that the light entering amount is increased, the night scene effect of the camera module can be improved, and the image quality of the camera module can be improved. For example, when the camera module 102 is a dual-lens camera module, the photosensitive element 23 includes a color chip and a black-and-white photosensitive chip, the color chip and the black-and-white photosensitive chip enable the camera module 102 to form a color lens and a black-and-white lens, and an image finally imaged by the camera module 102 is formed by fusing the color lens and the black-and-white lens, so as to improve the image quality of the camera module 102.

Further, referring to fig. 2 and fig. 3, the lens 213 further includes a connecting unit 215. The connection unit 215 is connected between adjacent two lens units 214. The connection unit 215 is integrally formed with the N lens units 214. The lens 21 further includes a light-shielding sheet 24. The light shielding sheet 24 is attached to the surface of the connection unit 215. That is, the light-shielding sheet 24 is located between two adjacent lens units 214. It is understood that the light shielding sheet 24 is used for shielding light, and can prevent light rays between two adjacent lens units 214 from influencing each other.

In the embodiment of the present application, the light shielding film 24 is located between two adjacent lens units 214, so as to prevent the light entering amounts of the external light passing through each lens unit 214 from each light entering port 2120 from interfering with each other, thereby ensuring the multi-lens function of the camera module 102.

In one embodiment, the lens 21 further includes a compression ring 25. The pressing ring 25 is used to fix the lens group 211. The press ring 25 is located on a side of the lens set 211 away from the light inlet 2120, and the press ring 25 is mounted on a surface of the lens 213 farthest from the light inlet 2120. As shown in fig. 2, the press ring 25 is located on the lens 213 closest to the circuit board 22 in the lens group 211. Wherein, clamping ring 25 can be a plastic clamping ring 25, and in one embodiment, clamping ring 25 is bonded to lens group 211 by glue.

In the embodiment of the present application, the pressing ring 25 can not only firmly fix the lens group 211 on the lens barrel 212, thereby ensuring the reliability of the lens 21, but also can block light, thereby avoiding the mutual interference of light rays of two adjacent lens units 214 in the lens 213.

Further, the upper surfaces and the lower surfaces of the plurality of lenses 213 are provided with light shielding structures. As shown in fig. 2, the upper surface and the lower surface of the middle two lenses 213 are both provided with a light shielding sheet 24, and the light shielding sheet 24 serves as a light shielding structure; the lens 213 closest to the light inlet 2120 is attached to the wall surface of the lens barrel 212, so that the upper surface of the lens 213 does not need to be provided with the light shielding sheet 24, and the wall surface of the lens barrel 212 can serve as a light shielding structure; the lens 213 farthest from the light inlet 2120 is attached with the press ring 25, so that the lower surface of the lens 213 does not need to be provided with the light shielding sheet 24, and at this time, the press ring 25 can serve as a light shielding structure.

In the embodiment of the present application, each lens 213 in the lens barrel 212 is provided with a light shielding structure for spacing two adjacent lens units 214, so as to prevent the two adjacent lens units 214 in any lens 213 in the lens barrel 212 from light interference, thereby effectively ensuring the multi-lens function of the camera module 102.

In one embodiment, the K mirrors 213 comprise N lens groups. K ith lens units 214 located at an ith lens area among the K mirror plates 213 form an ith lens group, K mth lens units located at an mth lens area among the K mirror plates 213 form an mth lens group, m is an integer greater than or equal to 1 and less than or equal to N, and m is different from i. The focal length of the ith lens group is greater than or less than that of the mth lens group. That is, the focal length of the K ith lens unit is greater than or less than the focal length of the K mth lens unit.

It is understood that there are at least two lens groups of the N lens groups formed by the K mirrors 213 having different focal lengths. The focal length of the i-th lens unit 214 of the K lens 213 in which at least one lens 213 exists is different from the focal length of the m-th lens unit 214, so that the focal lengths of at least two lens groups of the N lens groups are different.

In the embodiment of the present application, the focal lengths of at least two lens groups of the N lens groups formed by the K lenses 213 are different, so that the lens 21 has a function of blurring the background.

In one embodiment, the lens further comprises N apertures. The N apertures correspond one-to-one to the N lens units 214. The size of the i-th aperture stop corresponding to the i-th lens unit 214 is Fi. The size of the mth aperture stop corresponding to the mth lens unit 214 is Fm, m is an integer greater than or equal to 1 and less than or equal to N, and m is different from i. Fi is greater than or less than Fm. That is, the apertures corresponding to at least two lens groups in the N lens groups have different aperture sizes.

In the embodiment of the present application, the N apertures correspond to the N lens units 214 one to one, where at least two apertures in the N apertures have different sizes, so that the amount of light entering at least two optical path lens groups in the multi-optical path lens 21 is different, thereby improving the imaging quality of the lens.

With reference to fig. 2, in one embodiment, the number of the photosensitive elements 23 is N. The N photosensitive elements 23 are arranged at intervals on the circuit board 22. The N photosensitive elements 23 correspond one-to-one to the N lens units 214. That is, each photosensitive element 23 forms one photosensitive region. The N photosensitive elements 23 are independently mounted on the circuit board 22, so that the N photosensitive areas can be independently optically adjusted.

In the embodiment of the present application, the plurality of photosensitive regions correspond to the plurality of photosensitive elements 23 one-to-one, so that the plurality of photosensitive elements 23 can be assembled respectively, and thus the photosensitive region on each photosensitive element 23 can be adjusted as required, thereby avoiding the photosensitive element 23 having a plurality of photosensitive regions and making the relative position of each photosensitive region unadjustable. And a plurality of photosensitive element 23 and a plurality of camera lens one-to-one for a plurality of photosensitive element 23 can adopt the conventional ripe sensitization chip, not only makes the raw and other materials of module 102 of making a video recording obtain easily, has also guaranteed the reliability of module 102 of making a video recording.

In other embodiments, one photosensitive element 23 can also include a plurality of spaced apart photosensitive regions. That is, the present application is not limited to the photosensitive element 23. In this embodiment, the plurality of photosensitive areas are located on one photosensitive element 23, and the camera module 102 only needs to be installed on one photosensitive element 23, so that the installation time of the camera module 102 is saved.

Further, the number of the circuit boards 22 is N. The N circuit boards 22 are arranged at intervals. The N photosensitive elements 23 are mounted on the N circuit boards 22 in a one-to-one correspondence. It will be appreciated that each circuit board 22 is provided with a light sensing element 23. The N photosensitive elements 23 are independently mounted on the N circuit boards 22, which facilitates the mounting of the photosensitive elements 23 on the circuit boards 22.

In the first embodiment of the present application, the N photosensitive elements 23 are mounted on the N circuit boards 22 in a one-to-one correspondence manner, so that the apparatus in which the photosensitive elements 23 are mounted on the circuit boards 22 can directly adopt the conventional assembling apparatus, and the photosensitive elements 23 and the circuit boards 22 of the camera module 102 are improved less, so that the camera module 102 is obtained more easily.

The camera module 102 further includes a bonding wire 26. One end of the bonding wire 26 is connected to the photosensitive element 23, and the other end of the bonding wire 26 is connected to the circuit board 22. The photosensitive element 23 and the circuit board 22 are electrically connected by a bonding wire 26.

In the embodiment of the present application, the number of the photosensitive elements 23 and the circuit boards 22 is multiple, so that each photosensitive element 23 needs to be electrically connected to the corresponding circuit board 22 through the bonding wire 26. As shown in fig. 2, the number of bonding wires 26 is plural.

Further, referring to fig. 2, the camera module 102 further includes a package 27. The package 27 has a structure with two open ends. The package 27 is fixed on the circuit board 22, and the lens barrel 212 is located on a side of the package 27 away from the circuit board 22. The package 27 is formed by curing a flowable gel, such as a resin, by a Molding process.

In one embodiment, the package 27 wraps around the periphery of the plurality of photosensitive elements 23 such that the package 27 secures the plurality of photosensitive elements 23 to the circuit board 22.

It can be understood that the plurality of photosensitive elements 23 are mounted on the circuit board 22 and then filled with a flowable adhesive, the flowable adhesive covers the periphery of the photosensitive elements 23, and the flowable adhesive is cured to fix the photosensitive elements 23 on the circuit board 22. That is, after the package 27 is cured, the fixed connection between the package 27 and the photosensitive elements 23 and the fixed connection between the photosensitive elements 23 and the circuit board 22 are completed, which facilitates the assembly of the camera module 102.

In one embodiment, the bond wires 26 are encased by a package 27. As shown in fig. 2, the bonding wires 26 are located within the package 27.

In the embodiment of the present application, the bonding wire 26 realizes the electrical connection between the photosensitive element 23 and the circuit board 22, and the package 27 wraps the bonding wire 26, so that the bonding wire 26 is prevented from interfering with other components, and the phenomenon of disordered routing on the circuit board 22 is also avoided.

Further, referring to fig. 2, the camera module 102 further includes a filter 28. The filter 28 is located between the photosensitive element 23 and the lens group 211. The optical filter 28 can filter stray light in the external light, and prevent the stray light from imaging on the photosensitive element 23, so that the picture taken by the camera module 102 is more real, and the imaging quality of the camera module 102 is improved.

In one embodiment, the number of the filters 28 is N, and the N filters 28 correspond to the N lens units 214 one by one. The N filters 28 may be the same or different, and the present application is not limited thereto. As shown in fig. 2, N (two) filters 28 are provided at intervals. In other embodiments, the N filters 28 may be integrally formed, that is, the number of the filters 28 may be one, and the present embodiment is not limited thereto.

In the embodiment of the present application, the number of the optical filters 28 is the same as the number of the lens units 214, so that each lens has a corresponding optical filter 28, and the optical filters 28 can filter out specific light according to the requirement of each lens, thereby improving the imaging quality of the camera module 102.

In one embodiment, as shown in fig. 2, the camera module 102 further comprises a bracket 29. The bracket 29 is located between the package 27 and the lens barrel 212, and the filter 28 is mounted on the bracket 29. The bracket 29 is used for mounting the filter 28. In other embodiments, when the filter 28 is mounted to another structure and the mount 29 is not required to be mounted, the camera module 102 may be provided without the mount 29. It is understood that in other embodiments, the lens barrel 212 can be mounted directly on the package 27.

In the embodiment of the present application, the optical filter 28 is fixed by the bracket 29 by adopting a traditional mature process, so that the photosensitive element 23 can be directly fixed on the surface of the circuit board 22, the difficulty of the installation process of the camera module 102 is reduced, the installation efficiency of the camera module 102 is improved, and the yield of the camera module 102 can also be ensured.

Further, referring to fig. 4, fig. 4 is a schematic cross-sectional view of the camera module 102 shown in fig. 1 in a second embodiment. Most technical solutions in this embodiment that are the same as those in the first embodiment are not described again.

As shown in fig. 4, a plurality of photosensitive elements 23 arranged at intervals are respectively mounted on a plurality of areas arranged at intervals on the circuit board 22. It is understood that a plurality of photosensitive elements 23 are respectively mounted on one circuit board 22. It is also understood that a plurality of circuit boards 22 are integrated to form one circuit board. In the first embodiment provided in the present application, the circuit board 22 includes a plurality of circuit boards 22 arranged at intervals, so that the circuit board 22 is a split structure, and in the second embodiment provided in the present application, the plurality of circuit boards 22 is an integrated structure, so that the circuit board 22 is an integrated structure.

In the second embodiment of the present application, since the circuit boards 22 of the camera module 102 are integrated, no gap is formed between the circuit boards 22, so that the package 27 can be formed on the circuit board 22 by a Molding process, which not only simplifies the Molding step of the package 27, but also avoids the surface of the package 27 facing the lens 21 from being uneven due to step-by-step Molding when the package 27 is formed in different areas of the circuit board 22, thereby ensuring the reliability of the camera module 102.

Further, with reference to fig. 5, fig. 5 is a schematic cross-sectional view of the camera module 102 shown in fig. 1 in a third embodiment. Most technical solutions in this embodiment that are the same as those in the previous embodiment are not described again.

The circuit board 22 is provided with a receiving space 220. The receiving space 220 is a groove formed in the circuit board 22, and can also be a receiving cavity penetrating through the circuit board 22, which is not limited in the present application. The photosensitive element 23 is accommodated in the accommodating space 220. As shown in fig. 5, in the third embodiment provided in the present application, the photosensitive element 23 is accommodated in the accommodating space 220 formed by the circuit board 22.

In the embodiment of the present application, the photosensitive element 23 is accommodated in the accommodating space 220, so that the photosensitive element 23 and the circuit board 22 are spatially multiplexed in the thickness direction, the thickness of the camera module 102 is reduced, and the electronic device 100 is advantageously miniaturized.

In one embodiment, the camera module 102 further includes a support 31. As shown in fig. 5, the support member 31 is mounted on the circuit board 22. The lens barrel 212 is located on a side of the support 31 away from the circuit board 22, and the filter 28 is mounted on the support 31.

It can be understood that in this embodiment, the support 31 is directly mounted on the circuit board 22, so that the camera module 102 does not need to be provided with the package 27, and the step of forming the package 27 by using a Molding process is omitted, thereby improving the efficiency of assembling the camera module 102.

In other embodiments, the filter 28 may be fixed without the support 31, for example, the filter 28 may be directly mounted on the circuit board 22, and the application is not limited thereto. Because the photosensitive element 23 is accommodated in the accommodating space 220 formed by the circuit board 22, the optical filter 28 can be directly mounted on the circuit board 22, and the supporting member 31 is not needed to fix the optical filter 28, so that the thickness of the camera module 102 is further reduced, and the miniaturization of the camera module 102 is facilitated.

Further, referring to fig. 6, fig. 6 is a schematic cross-sectional view of the camera module 102 shown in fig. 1 according to a fourth embodiment. Most technical solutions in this embodiment that are the same as those in the previous embodiment are not described again.

The camera module 102 further includes a base 41. The base 41 has a structure with both ends open. The base 41 is mounted on the circuit board 22. The lens barrel 212 is located on a side of the base 41 away from the circuit board 22, and the filter 28 is fixed on the base 41. It is understood that, in the fourth embodiment of the present application, the camera module 102 does not include the package 27, the filter 28 is mounted on the inner wall of the base 41, and the lens barrel 212 is mounted on the side of the base 41 away from the circuit board 22.

In the fourth embodiment of the present application, the base 41 is fixed on the circuit board 22, and the optical filter 28 and the lens barrel 212 are directly mounted on the base 41, so that the camera module 102 does not need to be provided with the package 27, thereby saving the step of forming the package 27 by using a Molding process, and improving the assembly efficiency of the camera module 102.

Further, referring to fig. 7, fig. 7 is a schematic cross-sectional view of the camera module 102 shown in fig. 1 according to a fifth embodiment. Most technical solutions in this embodiment that are the same as those in the previous embodiment are not described again.

In the embodiment of the present application, the camera module 102 further includes a voice coil motor 51. The voice coil motor 51 is provided around the lens 21. As shown in fig. 7, a voice coil motor 51 is mounted to the side of the carriage 29 remote from the circuit board 22. As can be appreciated, the voice coil motor 51 is fixed to the carriage 29.

In the embodiment of the present application, the voice coil motor 51 can drive the lens 21 to move, so that the camera module 102 realizes automatic zooming, and the imaging quality of the camera module 102 is improved.

In the first to fourth embodiments of the present application, the case where the camera module 102 does not include the voice coil motor 51 is taken as an example for description, that is, the camera module 102 is the fixed-focus camera module 102. In any of the first to fourth embodiments, the camera module 102 can also be provided with the voice coil motor 51 to achieve automatic focusing, which is not limited in the present application.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the methods and their core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A lens barrel is of a hollow structure and is provided with N light inlets which are mutually spaced, N is an integer which is greater than or equal to 2, and the lens group is fixed on the inner side of the lens barrel;

2. The lens barrel according to claim 1, wherein each of the lenses further includes a connecting unit connected between two adjacent lens units, the connecting unit including a first surface and a second surface that are opposite to each other, the first surface being parallel to the second surface; the lens further comprises a light shielding sheet, and the light shielding sheet is attached to the first surface and/or the second surface.

3. The lens barrel of claim 2, further comprising a compression ring, wherein the compression ring is located on a side of the lens group away from the light inlet, and wherein the compression ring is mounted on a surface of the lens farthest from the light inlet.

4. The lens barrel according to any one of claims 1 to 3, wherein K said mirror plates include N lens groups, K said i lens units located in said i lens area of K said mirror plates form an i lens group, K m lens units located in an m lens area of K said mirror plates form an m lens group, m is an integer greater than or equal to 1, less than or equal to N, and m is different from i; the focal length of the ith lens group is greater than or less than the focal length of the mth lens group.

5. The lens barrel as claimed in any one of claims 1 to 3, further comprising N apertures, wherein the N apertures correspond to the N lens units one by one, the size of the i-th aperture corresponding to the i-th lens unit is Fi, the size of the m-th aperture corresponding to the m-th lens unit is Fm, m is an integer greater than or equal to 1 and less than or equal to N, m is different from i, and Fi is greater than or less than Fm.

6. A camera module, characterized in that, includes a circuit board, a photosensitive element and the lens of any one of claims 1 to 5, the circuit board is located at the light-emitting side of the lens, the photosensitive element is installed on the circuit board and faces the lens.

7. The camera module of claim 6, wherein the number of the photosensitive elements is N, the N photosensitive elements are arranged on the circuit board at intervals, and the N photosensitive elements correspond to the N lens units one to one.

8. The camera module of claim 7, wherein the number of the circuit boards is N, the N circuit boards are arranged at intervals, and the N photosensitive elements are mounted on the N circuit boards in a one-to-one correspondence.

9. A camera module according to any one of claims 6-8, wherein the circuit board is provided with a receiving space, and the photosensitive element is received in the receiving space.

10. An electronic device comprising a housing and the camera module of any one of claims 6-9, wherein the camera module is mounted to the housing.