CN115278008A

CN115278008A - Camera module and terminal equipment

Info

Publication number: CN115278008A
Application number: CN202210815944.9A
Authority: CN
Inventors: 高玉婵; 韦怡; 李响; 于盼; 谭耀成; 陈嘉伟
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-11-01

Abstract

The application relates to a camera module and a terminal device. The camera module comprises a structural part, a lens assembly and a driving part. The lens assembly comprises a first lens and a second lens, and the first lens is fixed on the structural part. The second lens is arranged on the driving piece, and at least part of the driving piece is configured to move towards a direction close to or far away from the structural piece. Above-mentioned camera module can reduce the weight of the camera lens subassembly that the driving piece bore to be favorable to reducing the load of driving piece, and then be favorable to reducing the volume of driving piece, promote the operational reliability of driving piece.

Description

Camera module and terminal equipment

Technical Field

The application relates to the field of making a video recording, especially relates to a camera module and terminal equipment.

Background

Along with the rapid development of the camera technology, the application of the camera module on terminal devices such as smart phones, tablet computers and electronic readers is also more and more extensive, wherein the camera module which is provided with a motor to drive the lens to move so as to realize focusing appears. However, with the development of wide angle of lens and large image plane trend, the volume of the motor in the current camera module is too large, and the operation reliability is low.

Disclosure of Invention

The embodiment of the application provides a camera module and terminal equipment to solve the problem that the motor is too big in the present camera module, and operational reliability is low.

A camera module, comprising:

a structural member;

the lens assembly comprises a first lens and a second lens, and the first lens is fixed on the structural part; and the number of the first and second groups,

the second lens is arranged on the driving piece, and at least part of the driving piece is configured to move towards a direction close to or far away from the structural piece.

Above-mentioned camera module, the weight of the first camera lens part of camera lens subassembly is born by the structure, and the weight of second camera lens part is born by the driving piece, is favorable to reducing driving piece drive division's weight, reduces the load of driving piece to reduce camera module and to the power and the structural requirement of driving piece, and then be favorable to reducing the volume of driving piece, with the holistic volume of compression camera module. Meanwhile, the whole weight of the driving piece and the second lens is reduced, the movement inertia is reduced, the risk that the driving piece and the second lens sink or even fall in the moving process is favorably avoided, and the operation reliability of the camera module is favorably improved. From this, foretell camera module even if the lens subassembly possess great volume and weight because of the design of wide-angle, big image plane, the load of driving piece also can not be too big to make the camera module can possess little volume and high operational reliability, therefore the camera module that this application provided can adapt to the lens subassembly of wide-angle, big image plane more.

A terminal device comprises a shell and the camera module according to any one of the embodiments, wherein a structural member of the camera module is connected with the shell.

Drawings

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

Fig. 1 is a schematic structural diagram of a camera module in some embodiments;

fig. 2 is a schematic structural diagram of the camera module shown in fig. 1 with the second lens in another position;

FIG. 3 is a schematic diagram of a protective cover, a structure, and a first lens according to some embodiments;

fig. 4 is a schematic structural diagram of a terminal device in some embodiments.

Reference numerals:

10. a camera module; 110. a lens assembly; 1110. a first lens; 1111. a first lens barrel; 1112. a first body; 1113. a second step portion; 1114. a first lens group; 1115. a first lens; 1116. a second lens; 1117. a limiting part; 1120. a second lens; 1121. a second barrel; 1122. a second body; 1123. a fifth step portion; 1124. a second lens group; 1125. an optical axis; 120. a photosensitive chip; 130. a drive member; 1310. a second body; 1311. a transmission part; 140. a structural member; 1410. a first body; 1411. a first step portion; 1412. a third step portion; 1413. a fourth step portion; 1414. a light through hole; 150. a protective cover plate; 160. an optical filter; 20. a terminal device; 210. a housing.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 and 2, fig. 1 and 2 are schematic structural views illustrating a lens assembly 110 of a camera module 10 in different focal lengths according to some embodiments. In some embodiments, the camera module 10 includes a lens assembly 110 and a photosensitive chip 120, the lens assembly 110 includes a plurality of lenses having refractive power, such as a plurality of convex lenses and a plurality of concave lenses, in other words, the lens assembly 110 has an ability to adjust light from an object side. The photosensitive chip 120 faces the surface of the lens assembly 110 and coincides with an image plane of the lens assembly 110, and light from the object side can be incident on the photosensitive chip 120 to be imaged after being adjusted by a plurality of lenses in the lens assembly 110, so that the camera module 10 has an image capturing function.

In some embodiments, the camera module 10 further includes a driving element 130, the lens assembly 110 includes a first lens 1110 and a second lens 1120 in order from an object side to an image side along an optical axis 1125, and each lens of the lens assembly 110 is distributed in the first lens 1110 and the second lens 1120. The second lens 1120 is disposed on the driving member 130 in a transmission manner, and the driving member 130 can drive the second lens 1120 to move toward a direction close to or away from the first lens 1110, so as to change the focal length of the lens assembly 110, thereby implementing a focusing function, so that the camera module 10 can adapt to objects with different object distances, and can have good imaging quality for the objects with different object distances. For example, in the camera module 10 shown in fig. 2, relative to the camera module 10 shown in fig. 1, the driving member 130 drives the second lens 1120 to move toward the first lens 1110.

In some embodiments, the lenses having optical power in the lens assembly 110 are coaxially disposed, and a common axis of the lenses can be regarded as an optical axis 1125 of the lens assembly 110, that is, the optical axis 1125 of the camera module 10. It should be noted that a side of the first lens 1110 facing away from the second lens 1120 may be understood as an object side of the lens assembly 110, and a side of the second lens 1120 facing away from the first lens 1110 may be understood as an image side of the lens assembly 110, and a direction along the optical axis 1125 from the first lens 1110 to the second lens 1120 may be considered as a direction along the object side to the image side.

The specific configuration of the driving element 130 is not limited, and may be any driving structure capable of driving the second lens 1120 to move, such as a motor, etc., the driving element 130 may contact with a portion of the second lens 1120 to drive the second lens 1120 to move, and the driving element 130 may also be disposed circumferentially around the second lens 1120.

Further, in some embodiments, the camera module 10 further includes a structural component 140, the first lens 1110 is fixedly disposed on the structural component 140, and the driving component 130 can drive the second lens 1120 to move toward or away from the first lens 1110. In other words, structure 140 can fix and carry portions of first lens 1110 of lens assembly 110, while actuator 130 fixes, carries and drives second lens 1120.

In the camera module 10, the lens assembly 110 is divided into the first lens 1110 and the second lens 1120, wherein the weight of the first lens 1110 is carried by the structural member 140, and the driving member 130 carries the weight of the second lens 1120. Therefore, the weight of the part driven by the driving part 130 can be reduced, so that the load of the driving part 130 is reduced, the power and the structural requirement of the camera module 10 on the driving part 130 are reduced, and the reduction of the volume of the driving part 130 is facilitated, so that the whole volume of the camera module 10 is compressed. Meanwhile, the overall weight of the driving element 130 and the second lens 1120 is reduced, and the movement inertia is reduced, which is beneficial to avoiding the risk that the driving element 130 and the second lens 1120 sink or even fall down during the moving process, thereby being beneficial to improving the operational reliability of the camera module 10. It can be understood that, by reducing the load of the driving member 130, even if the lens assembly 110 has a larger volume and weight due to the design of the wide-angle and large-image plane, the load of the driving member 130 is not too large, so that the camera module 10 can have a small volume and high operation reliability when the wide-angle and large-image plane lens assembly 110 is configured, and thus the camera module 10 provided by the present application can be more suitable for the wide-angle and large-image plane lens assembly 110.

In some embodiments, the first lens barrel 1110 includes a first barrel 1111 and a first lens set 1114 disposed in the first barrel 1111, for example, the first barrel 1111 has a substantially hollow cylindrical shape, and the first lens set 1114 is received in the hollow space of the first barrel 1111. The first lens set 1114 may include one or more lenses having optical power, and the first barrel 1111 is fixedly connected to the structure 140. The second lens element 1120 includes a second lens barrel 1121 and a second lens group 1124 disposed inside the second lens barrel 1121, for example, the second lens barrel 1121 is substantially in the shape of a hollow cylinder, and the second lens group 1124 is accommodated in a hollow space of the second lens barrel 1121. The second lens group 1124 may include one or more lenses having optical power, and the second barrel 1121 is fixedly connected to the driving member 130. The first lens barrel 1111 and the second lens barrel 1121 are configured to improve the structural strength of the lens assembly 110, so as to improve the structural strength of the camera module 10, and meanwhile, the first lens barrel 1111 and the second lens barrel 1121 can also provide fixing and protecting functions for the first lens group 1114 and the second lens group 1124 respectively.

In some embodiments, the number of lenses in the first lens group 1114 is greater than or equal to 1, less than or equal to 4, and the number of lenses in the first lens group 1114 is less than or equal to 4, which is beneficial for reducing the load bearing of the structure 140, thereby reducing the volume of the camera module 10 and improving the structural strength of the camera module 10. In some embodiments, the number of the lenses in the second lens group 1124 is greater than or equal to 1 and less than or equal to 7, which can reduce the load of the driving element 130, thereby reducing the size of the camera module 10, improving the operation stability of the camera module 10, and also improving the imaging quality of the camera module 10.

It should be noted that, in this embodiment and other embodiments, the number of the lenses in the first lens group 1114 and the second lens group 1124 is not limited, and can be adjusted according to actual requirements. For example, when it is desired to achieve better light adjustment function, thereby improving the imaging quality of the lens assembly 110, the number of lenses in the first lens group 1114 and/or the second lens group 1124 can be increased; when the bearing of structure 140 and driving piece 130 can be reduced as required to further reduce the volume of camera module 10, promote camera module 10's structural strength and driving piece 130's operational reliability, then the quantity of lens in reducible first lens group 1114 and/or second lens group 1124.

Further, in some embodiments, the number of lenses in the second lens group 1124 is greater than the number of lenses in the first lens group 1114. Therefore, the load of the driving part 130 is reduced, the focusing is realized by moving a larger number of lenses, and the focusing difficulty of the lens assembly 110 can be reduced, so that the improvement of the imaging quality is facilitated; in addition, while a larger number of lenses are configured to improve the imaging quality, the axial size of the first lens 1110 can be limited, so as to avoid the increase of the size of the structural member 140, which leads to the increase of the volume of the camera module 10. For example, the first lens group 1114 may include two lenses, and the second lens group 1124 may include five lenses; alternatively, the first lens group 1114 includes three lenses, and the second lens group 1124 includes four lenses, and the number of lenses in the lens assembly 110 may have other configurations according to different actual requirements, which are not described herein again.

In some embodiments, the structure 140 includes a first body 1410 and a first step 1411 protruding from the first body 1410 toward the first lens 1110, and the first step 1411 is connected to an inner side of the first body 1410. The first barrel 1111 includes a first body 1112 and a second step 1113 protruding from the first body 1112 toward the structure 140, and the second step 1113 connects to the outside of the first body 1112. The first step portion 1411 fixedly connects the second step portion 1113, for example, the surfaces of the first step portion 1411 opposite to the second step portion 1113 are connected to each other. Specifically, in some embodiments, the surface of the first step portion 1411 perpendicular to the optical axis 1125 facing the object side is connected to the surface of the second step portion 1113 perpendicular to the optical axis 1125 facing the image side. The surface connection is beneficial to increase the connection area of the first barrel 1111 and the structural part 140, so that the connection strength of the first barrel 1111 and the structural part 140 is improved. Of course, the connection manner of the first step portion 1411 and the second step portion 1113 includes, but is not limited to, optical adhesive bonding, welding, and the like.

Further, in some embodiments, the outer circumferential surface of the first body 1112 conforms to the inner circumferential surface of the first step portion 1411, for example, the inner circumferential surface of the first step portion 1411 has a slightly larger radial dimension than the outer circumferential surface of the first body 1112, or the outer circumferential surface of the first body 1112 just abuts the inner circumferential surface of the first step portion 1411. In other words, the inner circumferential surface of the first stepped portion 1411 is located outside the outer circumferential surface of the first main body 1112, and the outer circumferential surface of the first main body 1112 is radially limited to the inner circumferential surface of the first stepped portion 1411. Therefore, the first step 1411 can limit the position of the first barrel 1111 in the radial direction, and prevent the first barrel 1111 from deflecting and even separating from the structure 140, thereby further improving the structural strength of the camera module 10.

It should be noted that in the present application, the description of the inner side of a certain element may be understood as the side of the element facing the optical axis 1125, the description of the outer side of a certain element may be understood as the side of the element facing away from the optical axis 1125, the description of the inner circumferential surface of a certain element may be understood as the surface of the element facing the optical axis 1125, and the description of the outer circumferential surface of a certain element may be understood as the surface of the element facing away from the optical axis 1125.

In some embodiments, the structural member 140 may further include a third step 1412 protruding from the first body 1410 and facing away from the driving member 130, and the third step 1412 is located on the object side of the first step 1411. The camera module 10 may further include a protective cover 150, the protective cover 150 is disposed on the structural member 140 and is fixedly connected to the third step portion 1412, and the protective cover 150 may be located on a side of the first lens 1110 facing away from the second lens 1120. The protective cover 150 may be a flat glass plate, and the protective cover 150 is disposed on the object side of the lens assembly 110, so as to protect the lenses in the lens assembly 110 and prevent the lenses in the lens assembly 110 from being damaged due to collision. Of course, the protective cover plate 150 can also cooperate with the first step portion 1411 to limit the first lens 1110 in the axial direction, so as to prevent the first lens 1110 from being separated from the structural member 140, thereby further improving the structural stability of the camera module 10.

In some embodiments, the surface of the protective cover 150 facing away from the first lens 1110 is flush with the structural member 140, which is beneficial to shorten the dimension of the camera module 10 in the axial direction, thereby further compressing the volume of the camera module 10.

In some embodiments, the structure 140 has a light hole 1414, and the first lens 1110 is at least partially received in the light hole 1414. It is understood that during the assembly of the first lens 1110, the structural member 140 and the protective cover 150, the first lens 1110 may be first placed in the light hole 1414 to connect the first step portion 1411 with the second step portion 1113, and then the protective cover 150 may be placed in the light hole 1414 to connect the protective cover 150 with the third step portion 1412. Therefore, through reasonable design of the structure of the structural member 140, the assembly of the first lens 1110, the structural member 140 and the protective cover plate 150 is orderly carried out, mutual interference is avoided, and after the assembly is completed, the protective cover plate 150 and the structural member 140 can also provide effective bearing and limiting effects for the first lens 1110.

In some embodiments, as shown in FIG. 1 and FIG. 3, the shortest distance from the first lens 1110 to the protective cover 150 is greater than or equal to 0.04mm, i.e., the dimension A is greater than or equal to 0.04mm as shown in FIG. 3, and the shortest distance from the first lens set 1114 to the protective cover 150 is also greater than or equal to 0.04mm, i.e., the dimension B is greater than or equal to 0.04mm as shown in FIG. 3, in other words, the shortest distance from the first lens 1110 to the protective cover 150 is greater than or equal to 0.04mm. Therefore, a sufficient gap is formed between the protective cover plate 150 and the first lens 1110, and the first lens 1110 and the protective cover plate 150 are not easy to collide in the assembling process of the protective cover plate 150, so that the first lens 1110 and the protective cover plate 150 can be effectively prevented from being damaged.

In some embodiments, the first barrel 1111 further includes a limiting portion 1117 connected to the first body 1112, and the limiting portion 1117 is located on a side of the first lens group 1114 facing away from the second lens element 1120 to axially limit the first lens group 1114. For example, the surface of the stopper 1117 facing the image side abuts against the first lens group 1114, so that the first lens group 1114 can be prevented from separating from the first barrel 1111.

In some embodiments, the thickness of the limiting part 1117 is greater than or equal to 0.15mm, i.e., the dimension C shown in FIG. 3 is greater than or equal to 0.15mm, the thickness of the second step part 1113 is greater than or equal to 0.3mm, i.e., the dimension F shown in FIG. 3 is greater than or equal to 0.3mm, and the thickness of the first step part 1411 is greater than or equal to 0.2mm, i.e., the dimension C shown in FIG. 3 is greater than or equal to 0.2mm. Therefore, the first barrel 1111 has sufficient structural strength to fix and protect the first lens set 1114, and the structural member 140 also has sufficient structural strength to bear the weight of the first lens 1110, so as to effectively improve the structural strength of the camera module 10.

In some embodiments, the first step portion 1411 and the second step portion 1113 are adhered by optical glue or opaque glue, and the width of the adhered portion of the first step portion 1411 and the second step portion 1113 is greater than or equal to 0.2mm, i.e. the dimension D shown in fig. 3 is greater than or equal to 0.2mm. When the shapes of the adhered portions of the first and

second step parts

1411 and 1113 are irregular, the minimum width of the adhered portions of the first and

second step parts

1411 and 1113 is greater than or equal to 0.2mm. Therefore, a sufficient adhesion area exists between the first step portion 1411 and the second step portion 1113, so that the connection strength between the first lens 1110 and the structural member 140 can be improved, and the structural strength of the camera module 10 can be improved.

Referring to fig. 1 again, in some embodiments, the structural component 140 further includes a fourth step 1413 protruding from the first body 1410 toward the driving component 130, and the fourth step 1413 is connected to the image side of the first body 1410. The driving element 130 is located inside the fourth step 1413, and an inner circumferential surface of the fourth step 1413 is adapted to an outer circumferential surface of the driving element 130, for example, the inner circumferential surface of the fourth step 1413 has a radial dimension slightly larger than that of the outer circumferential surface of the driving element 130, or when the driving element 130 moves to the position of the embedded structure 140 along the optical axis 1125, the outer circumferential surface of the driving element 130 is just embedded with the inner circumferential surface of the fourth step 1413. In other words, the outer peripheral surface of the driver 130 is radially limited to the inner peripheral surface of the fourth step 1413. Therefore, the structural member 140 can also limit the driving member 130 in the radial direction, and prevent the driving member 130 from deviating from the optical axis 1125, thereby further improving the operation stability of the camera module 10.

It should be noted that in the present application, the axial direction of a certain element is described and understood as a direction parallel to the optical axis 1125, and the radial direction of a certain element is described and understood as a direction perpendicular to the optical axis 1125.

In the embodiment shown in fig. 1, the first lens group 1114 includes a first lens element 1115 and a second lens element 1116 in order from an object side to an image side along an optical axis 1125, wherein a diameter of the first lens element 1115 is smaller than a diameter of the second lens element 1116. In other embodiments, the first lens element 1115 is the closest lens element of the first lens group 1114, the first lens element 1115 has negative power, and the aperture of the first lens element 1115 is larger than the aperture of the remaining lens elements of the lens assembly 110. It can be understood that when the lens assembly 110 achieves a wide-angle, large-image-plane effect, the first lens 1115 needs to have a sufficiently strong light-collecting capability, so the aperture of the first lens 1115 in the wide-angle, large-image-plane lens assembly 110 is usually the largest, resulting in a larger volume and weight of the first lens 1115. The camera module 10 of the present application, by bearing the weight of the first lens 1115 through the structural component 140, even if the volume and the weight of the first lens 1115 are increased, the volume and the load of the driving component 130 are not increased, so that the camera module 10 can adapt to the wide-angle and large-image-plane lens assembly 110, and can have a small volume and high operation stability when the wide-angle and large-image-plane lens assembly 110 is configured.

In some embodiments, the second barrel 1121 includes a second body 1122 and a fifth step 1123 protruding from the second body 1122 toward the driver 130, and the fifth step 1123 connects the outer side of the second body 1122. The driving member 130 includes a second body 1310 and a transmission portion 1311 disposed inside the second body 1310 in a transmission manner, and the fifth step portion 1123 is fixedly connected to the transmission portion 1311. For example, the fifth step 1123 is connected to the surface opposite to the transmission 1311. Specifically, in some embodiments, the surface of the fifth step 1123 perpendicular to the optical axis 1125 facing the image side is connected to the surface of the transmission portion 1311 perpendicular to the optical axis 1125 facing the object side. The surface connection can also increase the connection strength between the second lens barrel 1121 and the driving member 130, thereby further improving the structural strength and operational reliability of the camera module 10. Of course, the connection manner of the fifth step 1123 and the transmission part 1311 includes, but is not limited to, gluing, welding, etc.

It should be noted that, the transmission portion 1311 is described as being disposed on the second body 1310 in a transmission manner, it is understood that the transmission portion 1311 can move relative to the second body 1310, for example, the transmission portion 1311 can move along the optical axis 1125 direction under the driving of the second body 1310, so as to drive the second lens 1120 to move toward or away from the first lens 1110.

In some embodiments, the inner circumferential surface of the transmission part 1311 is adapted to the outer circumferential surface of the second body 1122, for example, the radial dimension of the inner circumferential surface of the transmission part 1311 is slightly larger than the radial dimension of the outer circumferential surface of the second body 1122, or the outer circumferential surface of the second body 1122 just abuts the inner circumferential surface of the transmission part 1311. In other words, the inner circumferential surface of the transmission 1311 is located outside the outer circumferential surface of the second body 1122, and the outer circumferential surface of the second body 1122 is radially restricted by the inner circumferential surface of the transmission 1311. Therefore, the driving member 130 can limit the second lens 1120 in the radial direction, and the fifth step 1123 and the transmission portion 1311 are matched with each other in the axial direction to limit the second lens 1120 in the axial direction, which is beneficial to preventing the second lens 1120 from shifting in the driving member 130 and even separating from the driving member 130, so that the structural strength and the operational reliability of the camera module 10 are further improved.

In some embodiments, the photo sensor chip 120 is disposed on a side of the second lens 1120 facing away from the first lens 1110, and the photo sensor chip 120 and the first lens 1110 are relatively fixed, in other words, during a use or focusing process of the camera module 10, the first lens 1110 and an image plane of the lens assembly 110 are relatively fixed, and the driving element 130 drives the second lens 1120 to move between the first lens 1110 and the photo sensor chip 120 to realize a focusing function of the lens assembly 110. Therefore, while the load of the driving member 130 is reduced, the lens assembly 110 can also combine an internal focusing function, and the distance between the first lens 1110 and the photosensitive chip 120 is not changed in the focusing process, in other words, the total optical length of the lens assembly 110 is not changed, the position of the first lens 1110 does not need to be adjusted in the focusing process, and the moving space of the first lens 1110 does not need to be reserved at the structural member 140, so that the size of the camera module 10 is further reduced, and the condition that the first lens 1110 and the structural member 140 affect each other in the focusing process is avoided. Meanwhile, the focusing process occurs inside the camera module 10, and the situation that the first lens 1110 protrudes out of the structural member 140 and interferes with an external structure in the focusing process can also be avoided. It should be noted that the total optical length of the lens assembly 110 is a distance from the object-side surface of the first lens 1115 to the image plane of the lens assembly 110 on the optical axis 1125.

Those skilled in the art will appreciate that the configuration of the camera module 10 shown in fig. 1 and 2 does not constitute a limitation of the camera module 10, and that the camera module 10 may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. For example, in some embodiments, spacers, etc. may be disposed between the lenses of first lens group 1114 and between the lenses of second lens group 1124 to separate the lenses and prevent the lenses from colliding with each other and damaging. In some embodiments, the first lens group 1114 and/or the second lens group 1124 can be further configured with a stop, an aperture, etc. to limit the clear aperture of the lens assembly 110. In some embodiments, the camera module 10 may further include an optical filter 160, the optical filter 160 may be disposed between the second lens 1120 and the photosensitive chip 120, and the optical filter 160 is used for filtering out interference light and preventing the interference light from being incident on the photosensitive chip 120 to affect normal imaging. Specifically, when the camera module 10 is applied to visible light imaging, the filter 160 may be an infrared cut filter, and when the camera module 10 is applied to infrared light imaging, for example, in the security field and the three-dimensional detection field, the filter 160 may be an infrared band pass filter.

Referring to fig. 1 and 4 together, fig. 4 is a schematic structural diagram of a terminal device 20 according to some embodiments of the present application. In some embodiments, the terminal device 20 may include a housing 210 and the camera module 10 according to any of the above embodiments, and the structural member 140 of the camera module 10 is connected to the housing 210, so as to mount the camera module 10 on the housing 210. Specifically, when the camera module 10 is applied to rear camera shooting of the terminal device 20, the housing 210 may be a rear cover of the terminal device 20. The structural member 140 may be a decorative element of the terminal device 20, for example, the structural member 140 may realize a decorative effect of the housing 210 by a color, a shape or a pattern different from that of the housing 210. Combining the structural member 140 of the camera module 10 with the decorative element of the terminal device 20 facilitates the reduction of the volume of the terminal device 20. Meanwhile, by adopting the camera module 10 in the terminal device 20, when the lens assembly 110 with a wide angle and a large image plane is configured, the camera module 10 can also have the advantages of small volume, high operation reliability and the like, so that the occupied space of the camera module 10 in the terminal device 20 is reduced, and the influence of the focusing of the lens assembly 110 on the operation reliability of the terminal device 20 is avoided.

Further, in some embodiments, the fourth step 1413 of the structural member 140 is fixedly connected to the housing 210 to achieve relative fixation of the structural member 140 and the housing 210. For example, the fourth step portion 1413 is connected to the surface of the case 210 facing each other. Specifically, in some embodiments, the surface of the fourth step portion 1413 perpendicular to the optical axis 1125 and facing the object side and the surface of the housing 210 perpendicular to the optical axis 1125 and facing the image side are connected to each other. This can improve the connection strength between the structural member 140 and the housing 210, thereby improving the structural strength of the camera module 10. Meanwhile, it can be seen that, in the camera module 10, the structure for limiting the first lens 1110 in the axial direction and the radial direction by the structural member 140 is integrated on the first step portion 1411, and the connection structure for limiting the driving member 130 and the housing 210 is integrated on the fourth step portion 1413, so that the integration level of the structure is high, and the volume of the camera module 10 can be effectively compressed.

In some embodiments, the outer circumferential surface of the first body 1410 of the structure 140 conforms to the inner circumferential surface of the housing 210, for example, the inner circumferential surface of the housing 210 has a slightly larger radial dimension than the outer circumferential surface of the first body 1410, or the outer circumferential surface of the first body 1410 just abuts the inner circumferential surface of the housing 210. In other words, the inner circumferential surface of the housing 210 is located outside the outer circumferential surface of the first body 1410, and the outer circumferential surface of the first body 1410 is radially limited to the inner circumferential surface of the housing 210. Therefore, the shell 210 can also limit the knot component 140 in the radial direction, thereby further improving the structural stability of the camera module 10.

In some embodiments, the photo Sensor chip 120 of the camera module 10 may be a Charge Coupled Device (CCD) or a Complementary Metal-Oxide Semiconductor (CMOS) Sensor. The terminal device 20 may further include a display panel, and the photosensitive chip 120 is electrically connected to the display panel, so that the image collected by the camera module 10 is displayed on the display panel.

Those skilled in the art will appreciate that the terminal device 20 configuration shown in fig. 4 does not constitute a limitation of the terminal device 20 and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

As used herein, "terminal device 20" refers to a device capable of receiving and/or transmitting communication signals including, but not limited to, devices connected via any one or more of the following connections:

(1) Via wireline connections, such as via Public Switched Telephone Network (PSTN), digital Subscriber Line (DSL), digital cable, direct cable connections;

(2) Via a Wireless interface means such as a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter.

The terminal device 20 arranged to communicate over the wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

(1) Satellite or cellular telephones;

(2) Personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;

(3) Radiotelephones, pagers, internet/intranet access, web browsers, notebooks, calendars, personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

(4) Conventional laptop and/or palmtop receivers;

(5) Conventional laptop and/or palmtop radiotelephone transceivers, and the like.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A camera module, its characterized in that includes:

a structural member;

the lens assembly comprises a first lens and a second lens, and the first lens is fixed on the structural part; and (c) a second step of,

2. The camera module of claim 1, wherein the first lens comprises a first barrel and a first lens group disposed in the first barrel.

3. The camera module according to claim 2, wherein the structure has a first body and a first step portion protruding from the first body toward the first lens, the first lens barrel includes a first main body and a second step portion protruding from the first main body toward the structure, and the first step portion connects the second step portion.

4. The camera module according to claim 3, further comprising a protective cover, wherein the structure further comprises a third step portion protruding from the first body away from the driving member, and the protective cover is connected to the third step portion and located on a side of the first lens facing away from the second lens.

5. The camera module according to claim 4, wherein the distance from the first barrel to the protective cover is greater than or equal to 0.04mm;

the distance from the first lens group to the protective cover plate is greater than or equal to 0.04mm.

6. The camera module according to claim 3, wherein the first barrel further comprises a limiting portion connected to the first body, the limiting portion is located on a side of the first lens group away from the second lens, and a thickness of the limiting portion is greater than or equal to 0.15mm.

7. The camera module of claim 3,

the thickness of the second step part is more than or equal to 0.3mm;

the thickness of the first step part is greater than or equal to 0.2mm.

8. The camera module according to claim 3, wherein the first step portion is adhered to the second step portion.

9. The camera module of claim 3, wherein a width of a bonded portion of the first step portion and the second step portion is greater than or equal to 0.2mm.

10. The camera module according to claim 3, wherein an inner peripheral surface of the first stepped portion is located outside an outer peripheral surface of the first main body, and the outer peripheral surface of the first main body is radially limited to the inner peripheral surface of the first stepped portion.

11. The camera module of claim 2, wherein the number of lenses in the first lens group is greater than or equal to 1 and less than or equal to 4.

12. The camera module of claim 11, wherein the first lens group comprises a first lens element closest to the object side, the first lens element having a negative power, and wherein an aperture of the first lens element is larger than apertures of remaining lens elements of the lens assembly.

13. The camera module according to claim 3, wherein the structure further includes a fourth step portion protruding from the first body toward the driving member, the driving member is located inside the fourth step portion, and an outer peripheral surface of the driving member is radially limited to an inner peripheral surface of the fourth step portion.

14. The camera module according to claim 1, wherein the second lens includes a second barrel and a second lens group disposed in the second barrel, the driving member includes a second body and a transmission portion disposed in the second body, and the second barrel is connected to the transmission portion.

15. The camera module of claim 14, wherein the number of lenses in said second lens group is greater than or equal to 1 and less than or equal to 7.

16. The camera module of claim 14, wherein the first lens comprises a first barrel and a first lens group disposed in the first barrel, and a number of lenses in the second lens group is greater than a number of lenses in the first lens group.

17. The camera module according to any one of claims 1 to 16, further comprising a photosensitive chip, wherein the photosensitive chip is disposed on a side of the second lens facing away from the first lens, and the photosensitive chip is fixed relative to the first lens.

18. A terminal device, comprising a housing and a camera module according to any one of claims 1-17, wherein a structural member of the camera module is connected to the housing.