CN214540188U - Lens module and electronic equipment - Google Patents

Abstract

The utility model relates to an imaging device technical field specifically discloses a camera lens module and electronic equipment. The lens module comprises a base, a filtering element, a first lens group and a lens assembly. The base is provided with a first bearing step and a second bearing step which are sequentially and continuously arranged from the image side to the object side of the lens module, and the step surface of the first bearing step is closer to the optical axis of the lens module than the step surface of the second bearing step surface; the filter element is arranged on the first bearing step; the first lens group is arranged on the second bearing step; the lens assembly is disposed at an end of the base close to the object side of the lens module. The utility model provides a lens module can reduce tolerance such as eccentricity, slope in the lens module assembling process, reduces the equipment degree of difficulty of lens module, can obtain the lens module of high resolution, guarantees the equipment yields of lens module, finally can assemble and obtain a optical property good, the high many groups of group lens module of image quality.

Description

Lens module and electronic equipment

Technical Field

The utility model relates to an imaging device technical field especially relates to a lens module and electronic equipment.

Background

In a conventional lens barrel, a plurality of lenses are assembled in a lens barrel one by one, and during the assembly process, a certain tolerance inevitably exists when each lens and the lens barrel are assembled, and finally, the lens and the lens barrel are assembled to form a cumulative tolerance, namely, the assembly tolerance of a single lens. Therefore, the larger the number of lenses, the larger the cumulative tolerance, the lower the overall quality of the lens, and the lower the yield in the lens production process. On the other hand, in the conventional lens barrel, a plurality of lenses are assembled in the same lens barrel, and the relative positions of the lenses are determined, so that the adjustment cannot be performed. Once the lens is assembled in the lens barrel, the quality of the lens is determined, which also makes the requirements for the processing precision of the lens barrel and the lens higher.

In the correlation technique, many groups lens module includes the base, is provided with lens group and light filter on the base, and during actual assembly, lens group and light filter are installed on the base from the both sides of frame respectively, and in the assembling process, need upset base in order to assemble lens group and light filter, troublesome poeration, production efficiency is low, and the production yields is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a camera lens module and electronic equipment, the equipment of this camera lens module is simple swift, and the production yields is high, and the quality of just forming images is good.

In order to achieve the above object, an embodiment of the present invention discloses a lens module, including:

the lens module comprises a base, a light through hole is formed in the base, a first bearing step and a second bearing step are arranged on the inner side wall surface of the light through hole, the first bearing step and the second bearing step are sequentially and continuously arranged from the image side to the object side of the lens module, and the step surface of the first bearing step is closer to the optical axis of the lens module than the step surface of the second bearing step;

the light filtering element is arranged on the first bearing step;

a first lens group disposed on the second bearing step; and

the lens assembly is arranged at one end, close to the object side, of the base, and the lens assembly is arranged at the other end, close to the object side, of the lens module.

The utility model provides a lens module is provided with the base, and during the actual equipment lens module, can follow the base and carry out the installation of first battery of lens and filter element with one side, particularly, operating personnel can install filter element on the first step that bears that leads to the unthreaded hole earlier from the object side of base, then install first battery of lens on the step is born to the second from the object side of base again, sets up the camera lens subassembly on the base again at last. That is to say, the utility model provides a filter element, first lens group and camera lens subassembly are assembled on the base respectively from the thing side in proper order, and whole process need not carry out the upset of base, and the assembly process is simple swift, is convenient for improve the production yield of camera lens module. Meanwhile, because the first lens Group and the lens component of the lens module are arranged in a split mode, in the assembling process, the alignment assembly of the light filtering element, the first lens Group and the lens component can be carried out in an AA calibration mode, the eccentricity, the inclination and other tolerances in the assembling process of the lens module can be reduced, the assembling difficulty of the lens module is reduced, the high-resolution lens module can be obtained, the assembling yield of the lens module is ensured, and finally, a multi-lens Group lens (Multiple Group lens) module with good optical performance and high imaging quality can be assembled.

As an alternative implementation, in an embodiment of the present invention, the first lens group includes one or more lenses;

when the first lens group comprises a plurality of lenses, the lenses are sequentially stacked along the optical axis direction of the lens module, the second bearing steps are multiple, and the second bearing steps and the lenses are arranged in one-to-one correspondence, so that the first lens group is convenient to mount; or,

work as first battery of lens includes the polylith during lens, the polylith lens are followed the range upon range of setting in proper order of the optical axis direction of camera lens module, and adjacent two through first adhesive linkage bonding connection between the lens, be convenient for realize the miniaturized design of camera lens module.

As an optional implementation manner, in an embodiment of the present invention, the first bearing step and the second bearing step each include:

the step surface is vertical to the optical axis of the lens module;

the side wall surface is positioned on one side, far away from the optical axis, of the step surface, and the side wall surface is parallel to the rotating shaft or faces the outer side of the base in an inclined mode. When the side wall surface is obliquely arranged towards the outer side of the base, the width of the first bearing step and the second bearing step in the direction close to the object side is larger, and the width of the first bearing step and the second bearing step in the position close to the step surface is smaller, so that the placement and installation of the filter element and the first lens group are facilitated.

As an optional implementation manner, in the embodiment of the present invention, the first bearing step and the second bearing step are provided with a chamfer at the corner, and through the effect of this chamfer, the corner position scratch of the first bearing step and the second bearing step can be prevented from scratching the optical filtering element and the first lens set, which is convenient for improving the production yield of the lens module in this embodiment.

As an optional implementation manner, in the embodiment of the present invention, the lens module further includes a circuit board and a photosensitive chip, the base is disposed on the circuit board, and the photosensitive chip is disposed on the circuit board and aligned with the light passing hole, so that the photosensitive chip can receive the light emitted from the light passing hole.

As an optional implementation manner, in the embodiment of the present invention, the lens module further includes a loading board, the circuit board is disposed on the loading board, and the circuit board is provided with a positioning hole, and the photosensitive chip is disposed on the positioning hole and fixed on the loading board. That is to say, the utility model discloses in through set up the locating hole on the circuit board, after installing the circuit board on the loading board, this loading board can bear and install circuit board and sensitization chip, and simple structure is convenient for select the use according to the user demand of reality.

As an optional implementation manner, in the embodiment of the present invention, a positioning groove is disposed on the circuit board, and the photosensitive chip is disposed on the positioning groove. Through set up positioning groove on the circuit board to set up sensitization chip in positioning groove, can reduce the size of camera lens module along the ascending size in optical axis direction, be convenient for realize the miniaturized design of camera lens module.

As an optional implementation manner, in the embodiment of the present invention, the inner side wall surface of the light passing hole is provided with a limit flange, the photosensitive chip has an outer edge, at least a portion of the outer edge abuts against the limit flange, and the photosensitive chip can be limited between the base and the circuit board by the limit flange.

As an optional implementation manner, in the embodiment of the present invention, the photosensitive chip is convexly disposed on the circuit board, the base is close to one side of the circuit board is provided with an avoiding groove, and the photosensitive chip is disposed on the avoiding groove. That is to say, the utility model discloses in dodge the recess through setting up on the base to set up the sensitization chip in dodging the recess, can further improve the compactedness of the camera lens module in this embodiment, be convenient for realize the miniaturized design of camera lens module.

As an optional implementation manner, in the embodiment of the present invention, the filter element is stacked on the photosensitive chip, and the photosensitive chip is connected to the filter element through the second adhesive layer, so as to facilitate the miniaturization of the lens module.

As an optional implementation manner, in an embodiment of the present invention, the base is an injection molding piece, and the injection molding piece is integrally formed with the circuit board. According to the configuration, the structural strength of the lens module can be improved.

As an optional implementation manner, in an embodiment of the present invention, the circuit board is provided with an electronic component, and the electronic component is embedded in the base. The electronic element is embedded in the base, can be protected, prevents the external environment from damaging the electronic element, and is convenient for prolonging the service life of the lens module in the embodiment.

As an alternative implementation manner, in an embodiment of the present invention, the filter element is fixed to the first bearing step by bonding or fitting; and/or the presence of a gas in the gas,

the first lens group is fixed to the second bearing step in a bonding or fitting manner.

The utility model discloses in fix filter element and first battery of lens through bonding or the mode of closure, simple structure is convenient for improve the structural strength of this camera lens module.

As an optional implementation manner, in an embodiment of the present invention, the lens assembly includes a lens barrel and a second lens group, the lens barrel is fixedly disposed on the base, the second lens group is disposed in the lens barrel, and the second lens group includes one or more lenses. That is, the utility model provides a first battery of lens and second battery of lens module set up for the components of a whole that can function independently, adopt this kind of split type structure, can adopt optics AA calibrated mode to carry out the counterpoint equipment of many group's group lens, and then can effectively guarantee the production yield of lens module, promote the optical property of whole lens module.

On the other hand, the embodiment of the utility model also discloses an electronic equipment, this electronic equipment includes foretell lens module.

Compared with the prior art, the utility model discloses a lens module and electronic equipment have following technological effect at least:

when the lens module is actually assembled, the first lens group and the optical filter may be mounted from the same side of the base, specifically, an operator may mount the optical filter element on the first bearing step in the light through hole from the object side of the base, then mount the first lens group on the second bearing step from the object side of the base, and finally mount the lens module on the base. That is to say, the utility model provides a filter element, first lens group and camera lens subassembly are assembled on the base respectively from the thing side in proper order, and whole process need not carry out the upset of base, and the assembly process is simple swift, is convenient for improve the production yield of camera lens module. Meanwhile, because the first lens group and the lens component of the lens module are arranged in a split mode, in the assembling process, the alignment assembly of the light filtering element, the first lens group and the lens component can be carried out in an AA calibration mode, the eccentricity, the inclination and other tolerances in the assembling process of the lens module can be reduced, the assembling difficulty of the lens module is reduced, the high-resolution lens module can be obtained, the assembling yield of the lens module is ensured, and finally the multi-lens group lens module with good optical performance and high imaging quality can be assembled.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a cross-sectional view of a first lens module according to an embodiment of the present invention;

FIG. 2 is an enlarged view of region M of FIG. 1;

fig. 3 is a first exploded view of a first lens module according to a first embodiment of the present invention;

fig. 4 is a second exploded view of a first lens module according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of a second lens module according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of a third lens module according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a fourth lens module according to an embodiment of the present invention;

fig. 8 is a cross-sectional view of a lens module according to a second embodiment of the present invention;

fig. 9 is a cross-sectional view of a lens module according to a third embodiment of the present invention;

fig. 10 is a cross-sectional view of a lens module according to a fourth embodiment of the present invention;

fig. 11 is a cross-sectional view of a lens module according to a fifth embodiment of the present invention;

fig. 12 is a cross-sectional view of a lens module according to a sixth embodiment of the present invention;

fig. 13 is an enlarged view of the region N in fig. 12;

fig. 14 is a cross-sectional view of a lens module according to a seventh embodiment of the present invention;

fig. 15 is an enlarged view of region P in fig. 14;

fig. 16 is a front view of an electronic device disclosed in the eighth embodiment of the present invention.

Icon: 100. a lens module; 10. a base; 11. a light through hole; 12. a first bearing step; 121. a step surface; 122. a side wall surface; 13. a second bearing step; 13a (13b), a second bearing step; 131. a step surface; 132. a side wall surface; 14. chamfering; 15. a limiting flange; 16. avoiding the groove; 20. a filter element; 30. a first lens group; 31. a first lens; 32. a second lens; 40. a lens assembly; 50. a circuit board; 51. an electronic component; 52. positioning holes; 53. a positioning groove; 60. a photosensitive chip; 70. a carrier plate; 80. a second adhesive layer; 90. a first adhesive layer; 300. an electronic device; 301. a housing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the particular nature and configuration of which may be the same or different, and not intended to indicate or imply the relative importance or importance of the indicated device, element, or component.

The following detailed description is made with reference to the accompanying drawings.

Example one

Referring to fig. 1 to 4, a first embodiment of the present invention provides a lens module 100, where the lens module 100 includes a base 10, a filter element 20, a first lens group 30, and a lens assembly 40.

Wherein, the base 10 is provided with a light-passing hole 11, a first bearing step 12 and a second bearing step 13 are arranged on an inner side wall surface of the light-passing hole 11, the first bearing step 12 and the second bearing step 13 are sequentially and continuously arranged from the image side to the object side of the lens module 100, and a step surface of the first bearing step 12 is closer to an optical axis of the lens module 100 than a step surface of the second bearing step 13; in actual installation, the filter element 20 is arranged on the first bearing step 12; disposing the first lens group 30 on the second loading step 13; the lens assembly 40 is disposed at one end of the base 10 close to the object side of the lens module 100. It should be understood that, in the present embodiment, the first supporting step 12 and the second supporting step 13 are sequentially disposed from the image side to the object side of the lens module 100 in sequence, which means that the second supporting step 13 is disposed next to the first supporting step 12, that is, there is no space therebetween, and the step surface 131 of the second supporting step 13 is connected to the side wall surface 122 of the first supporting step 12, and the two steps can be sequentially disposed therebetween to form a two-step progressive step, as shown in fig. 1.

The lens module 100 in this embodiment is provided with the base 10, and when the lens module 100 is actually assembled, the first lens group 30 and the filter element 20 can be mounted from the same side of the base 10, specifically, an operator can mount the filter element 20 on the first bearing step 12 in the light-passing hole 11 from the object side of the base 10, then mount the first lens group 30 on the second bearing step 13, and finally mount the lens assembly 40 on the base 10. That is, the filter element 20, the first lens group 30 and the lens assembly 40 in this embodiment are sequentially and respectively assembled on the base 10 from the object side, the whole process does not need to turn over the base, the assembly process is simple and fast, and the production yield of the lens module is improved. Meanwhile, because the first lens Group 30 and the lens assembly 40 of the lens module 100 are separately arranged, in the assembling process, the alignment assembly of the filter element 20, the first lens Group 30 and the lens assembly 40 can be performed in an AA calibration manner, so that the tolerance of eccentricity, inclination and the like in the assembling process of the lens module 100 can be reduced, the assembling difficulty of the lens module 100 can be reduced, the high-resolution lens module 100 can be obtained, the assembling yield of the lens module 100 can be ensured, and finally, a multi-lens Group lens (Multiple Group lens) module with good optical performance and high imaging quality can be assembled.

It should be noted that the AA calibration described in this embodiment is an AA process, i.e., Active Alignment, which is interpreted as chinese, i.e., Active Alignment, and is a technique for determining the relative position during the assembly process of the parts. In the AA process apparatus, when assembling each component, the apparatus will detect the assembled semi-finished product, actively align the semi-finished product according to the actual situation of the assembled semi-finished product, and then assemble the next component in place. The active alignment technology can adjust the lens alignment to 6 degrees of freedom (X, Y, Z, Tx, Ty and Tz), effectively reduce the assembly tolerance of the whole module, effectively improve the consistency of the lens module product, and create possibility for packaging the higher-order camera module product.

Further, the base 10 in this embodiment is disposed in a columnar shape, and the columnar structure may be a prismatic structure, or may also be a cylindrical structure, an elliptic cylindrical structure, or another special-shaped columnar structure, which may be specifically selected according to actual use and design requirements, and this embodiment is not specifically limited. The light through hole 11 on the base 10 can be a circular through hole, an oval through hole, a polygonal through hole or other special-shaped through holes.

Referring to fig. 1 to 4 again, in the present embodiment, the first bearing step 12 and the second bearing step 13 are continuously disposed, so that the inner structure of the light hole 11 is more compact, and the miniaturization design of the lens module 100 is facilitated.

Further, the first bearing step 12 and the second bearing step 13 in the present embodiment each include a step face and a side wall face. As shown in fig. 1 and 2, the step surface 121 of the first bearing step 12 and the step surface 131 of the second bearing step 13 in the present embodiment are both perpendicular to the optical axis of the lens module 100; the side wall surface 122 of the first supporting step 12 is located on one side of the step surface 121 away from the optical axis of the lens module 100, and the distance from the side wall surface 122 to the optical axis of the lens module 100 is gradually increased in the direction away from the step surface 121; correspondingly, the side wall surface 132 of the second bearing step 13 is located on one side of the step surface 131 away from the optical axis of the lens module 100, and the distance from the side wall surface 132 to the optical axis of the lens module 100 is gradually increased in the direction away from the step surface 131, that is, both the side wall surface 132 and the side wall surface 122 are inclined toward the outside of the base 10.

That is, the first and second supporting steps 12 and 13 in the present embodiment are wider in the direction close to the object side and narrower in the direction away from the object side, so that when the mounting of the first lens group 30 and the filter element 20 is performed from the object side, the placement and mounting of the filter element 20 and the first lens group 30 on the corresponding first and second supporting steps 12 and 13 is more facilitated.

Optionally, the corners of the first bearing step 12 and the second bearing step 13 in this embodiment are provided with chamfers 14, and the chamfers 14 may be rounded corners, chamfered corners, or the like. Fig. 2 and 3 show a case where the chamfer 14 is a rounded corner, and the corner positions of the first bearing step 12 and the second bearing step 13 can be prevented from scratching the filter element 20 and the first lens group 30 by the chamfer 14, so as to improve the production yield of the lens module 100 in the embodiment. Of course, as shown in fig. 5, in another embodiment of the present invention, the corners of the first bearing step 12 and the second bearing step 13 may not be provided with the chamfer 14.

Further, the filter element 20 in this embodiment is an infrared filter block, for example, which is used to filter infrared light conveniently, so that the light entering the imaging surface of the lens module 100 is visible light. During actual assembly, the filter element 20 in this embodiment can be adhered to the first step 12 through glue, and can be installed in the first step 12 through modes such as buckle, rivet hot, screwed connection, welding and threshold, as long as be in the utility model discloses an other deformation modes under the design are all within the protection scope.

In some embodiments of the present invention, the first lens set 30 includes at least one lens, and fig. 1, fig. 3 and fig. 4 show the situation when the first lens set 30 includes one lens, and during the actual assembly, the first lens set 30 can be bonded to the second through glue and bear the step 13, and can also be installed in the second through modes such as buckle, rivet, screwed connection, welding and bank and bear the step 13, as long as it is in the utility model discloses an other deformation modes under the concept are all within the protection scope of the present invention. Of course, in other embodiments of the present invention, the first lens group 30 may further include two, three or more than three lenses, specifically selected according to the imaging requirements of the lens module 100, and the present invention does not limit the lens group.

Further, the lens assembly 40 in this embodiment includes a lens barrel and a second lens group, wherein the lens barrel is fixedly disposed on the base 10, and specifically, the lens barrel can be fixedly connected to the base 10 through bonding, welding, clamping, screwing, and the like, the second lens group is disposed in the lens barrel, and specifically, the second lens group can be fixed in the lens barrel through bonding, welding, fitting, and the like, and the second lens group includes at least one lens, for example, one, two, or more than two lenses. That is to say, the first lens group 30 and the second lens group of the lens module 100 in this embodiment are separately disposed, and by adopting this split structure, the alignment assembly of multiple groups of lenses can be performed by adopting the optical AA calibration method, so that the production yield of the lens module 100 can be effectively ensured, and the optical performance of the entire lens module 100 can be improved.

Further, the lenses in the first lens group 30 and the second lens group in the present embodiment may be square lenses, circular lenses, polygonal lenses, or the like. And the lens here may be a glass lens, a plastic lens, or the like.

Furthermore, the lens module 100 further includes a circuit board 50 and a photo sensor chip 60, the base 10 is disposed on the circuit board 50, and the photo sensor chip 60 is disposed on the circuit board 50 and aligned with the light hole 11, so that the photo sensor chip 60 can receive the light emitted from the light hole 11.

Optionally, the base 10 in this embodiment is an injection molded part, and the injection molded part is integrally formed with the circuit board 50, so that the structural strength of the lens module 100 in this embodiment can be improved. Of course, in other embodiments of the present invention, the base 10 and the circuit board 50 may be assembled together after being separated from each other, and at this time, the base 10 and the circuit board 50 may be bonded together by glue, or may be fixedly connected together by screws, fasteners, welding, or the like.

Further, a limiting flange 15 is provided on an inner side wall surface of the light passing hole 11 in the present embodiment, and the photosensitive chip 60 can be defined between the base 10 and the circuit board 50 by the action of the limiting flange 15.

As shown in fig. 1 and 5, in some embodiments of the present invention, the limiting flange 15 is an annular flange, and the annular flange abuts against the outer edge of the photosensitive chip 60, that is, the entire outer edge of the photosensitive chip 60 is abutted against the annular flange, so as to effectively limit the photosensitive chip 60.

As shown in fig. 6, in other embodiments of the present invention, only a portion of the outer edge of the photosensitive chip 60 abuts against the limiting flange 15, at this time, the limiting flange 15 is a limiting block, which is not an annular structure and cannot abut against the whole outer edge of the photosensitive chip 60. With this configuration, the processing difficulty of the lens module 100 can be simplified, and the photosensitive chip 60 can be defined between the base 10 and the circuit board 50.

Further, as shown in fig. 1, in the embodiment of the present invention, the photosensitive chip 60 is convexly disposed on the circuit board 50, the side of the base 10 close to the circuit board 50 is provided with an avoiding groove 16, and the photosensitive chip 60 is located in the avoiding groove 16. That is, in the present embodiment, the avoiding groove 16 is provided on the base 10, and the photosensitive chip 60 is provided in the avoiding groove 16, so that the compactness of the lens module 100 in the present embodiment can be further improved, and the miniaturization of the lens module 100 can be facilitated.

As shown in fig. 7, in other embodiments of the present invention, the lens module 100 may not further include a limiting flange 15, and at this time, the photosensitive chip 60 is located in the light hole 11 of the base 10 and does not contact with the base 10, so as to reduce the thickness of the lens module 100 in the optical axis direction, thereby facilitating the miniaturization of the lens module 100.

Further, the circuit board 50 of the present embodiment is provided with an electronic component 51, the electronic component 51 may be, for example, a resistor, a capacitor, etc., and during actual processing, the electronic component 51 is embedded in the base 10, so that the electronic component 51 can be protected, the electronic component 51 is prevented from being damaged by an external environment, and the service life of the lens module 100 in the present embodiment is conveniently prolonged.

To sum up, the utility model provides a filter element 20, first lens Group 30 and lens subassembly 40 are assembled respectively on base 10 in proper order, and first lens Group 30 and lens subassembly 40 of lens module 100 are split type setting, so, in the assembly process, filter element 20 can be carried out through the mode of AA calibration, the counterpoint equipment of first lens Group 30 and lens subassembly 40, can reduce decentration in the assembly process of lens module 100, tolerances such as slope, reduce the equipment degree of difficulty of lens module 100, can obtain high-resolution lens module 100, guarantee the equipment yields of lens module 100, finally can assemble and obtain a kind of optical performance well, many groups of lens (Multiple Group lens) module that the imaging quality is high.

Example two

Referring to fig. 8, a second embodiment of the present invention discloses a lens module 100, and the structure of the lens module 100 is substantially the same as that of the lens module 100 in the first embodiment. In contrast, the first lens group 30 of the lens module 100 in the present embodiment includes two lenses, specifically, a first lens 31 and a second lens 32, and the first lens 31 and the second lens 32 are sequentially disposed along the optical axis from the image side to the object side of the lens module, and at this time, in order to mount the first lens 31 and the second lens 32, two second bearing steps, specifically, a second bearing step 13a and a second bearing step 13b, are correspondingly disposed. The first lens 31 is disposed on the second carrying step 13a, and the second lens 32 is disposed on the second carrying step 13 b.

The first lens group 30 in this embodiment includes two lenses, and can form a multi-lens group lens with the lenses in the lens assembly 40, so as to improve the imaging quality of the lens module 100 in this embodiment.

It is understood that in other embodiments of the present invention, the first lens group 30 may be set to three or more than three, and the second supporting step may be set to three or more than three correspondingly.

In addition, the first lens Group 30 and the lens component 40 of the lens module 100 in this embodiment are separately disposed, so in the assembly process, the alignment assembly of the filter element 20, the first lens Group 30 and the lens component 40 can be performed in an AA calibration manner, which can reduce the tolerance such as eccentricity and tilt in the assembly process of the lens module 100, reduce the assembly difficulty of the lens module 100, obtain the lens module 100 with high resolution, ensure the assembly yield of the lens module 100, and finally obtain a multi-lens Group lens (Multiple Group lens) module with good optical performance and high imaging quality by assembly.

EXAMPLE III

Referring to fig. 9, a third embodiment of the present invention discloses a lens module 100, and the structure of the lens module 100 is substantially the same as that of the second embodiment. What is different from the above, in the lens module 100 of the present embodiment, two lenses in the first lens group 30 are stacked together, wherein the first lens 31 and the second lens 32 are bonded together by the first bonding layer 90, and the first bonding layer 90 may be, for example, glue, which has a simple structure and is easy to implement.

In this embodiment, the first lens 31 and the second lens 32 are bonded by the first adhesive layer 90, and only one second bearing step 13 needs to be arranged, so that the processing difficulty of the base 10 can be reduced, meanwhile, the first adhesive layer 90 is used to separate the first lens 31 and the second lens 32, and a plurality of second bearing steps 13 are arranged relatively, so that the size of the lens module 100 in the optical axis direction can be reduced to a certain extent, and the miniaturization design of the lens module 100 is facilitated.

It is understood that, in other embodiments of the present invention, three or more first lens groups 30 may be provided, and at this time, only the first adhesive layer 90 needs to be used to separate two adjacent lenses.

It can be understood that, when the first adhesive layer 90 is used to adhere the first lens 31 and the second lens 32, the adhesion action is performed after the AA calibration is pre-fixed and before the AA calibration is fixed, so that the assembly error of the lens module can be effectively avoided.

Like the second embodiment, the first lens Group 30 and the lens assembly 40 of the lens module 100 in this embodiment are separately disposed, so that, in the assembly process, the alignment assembly of the filter element 20, the first lens Group 30 and the lens assembly 40 can be performed in an AA calibration manner, which can reduce the tolerance such as eccentricity and tilt in the assembly process of the lens module 100, reduce the assembly difficulty of the lens module 100, obtain the lens module 100 with high resolution, ensure the assembly yield of the lens module 100, and finally assemble a multi-lens Group lens (multi Group lens) module with good optical performance and high imaging quality.

Example four

Referring to fig. 10, a fourth embodiment of the present invention discloses a lens module 100, and the structure of the lens module 100 is substantially the same as that of the lens module 100 in the first embodiment. In this embodiment, the lens module 100 further includes a carrier 70, and during actual installation, the circuit board 50 is disposed on the carrier 70, the circuit board 50 is disposed with a positioning hole 52, and the photo sensor chip 60 is disposed in the positioning hole 52 and fixed on the carrier 70. That is, in the present embodiment, by providing the positioning hole 52 on the circuit board 50, after the circuit board 50 is mounted on the carrier plate 70, the carrier plate 70 can carry and mount the circuit board 50 and the photosensitive chip 60, and the structure is simple, so that the circuit board and the photosensitive chip can be selectively used according to actual use requirements.

Optionally, the carrier plate 70 is a metal plate, which has high structural strength and good stability, and is convenient for prolonging the service life of the lens module 100.

Like the embodiments, the first lens Group 30 and the lens component 40 of the lens module 100 in this embodiment are separately disposed, so that, in the assembly process, the alignment assembly of the filter element 20, the first lens Group 30 and the lens component 40 can be performed in an AA calibration manner, which can reduce the tolerance such as eccentricity and tilt in the assembly process of the lens module 100, reduce the assembly difficulty of the lens module 100, obtain the lens module 100 with high resolution, ensure the assembly yield of the lens module 100, and finally obtain a multi-lens Group lens (multi Group lens) module with good optical performance and high imaging quality.

EXAMPLE five

Referring to fig. 11, a fifth embodiment of the present invention discloses a lens module 100, and the structure of the lens module 100 is substantially the same as that of the lens module 100 in the first embodiment. In contrast, the circuit board 50 in the present embodiment is provided with a positioning groove 53, and the photosensitive chip 60 is disposed in the positioning groove 53. In this embodiment, the positioning groove 53 is formed in the circuit board 50, and the photosensitive chip 60 is disposed in the positioning groove 53, so that the size of the lens module 100 in the optical axis direction can be reduced, and the miniaturization of the lens module 100 can be easily realized.

Like the embodiment, the first lens Group 30 and the lens assembly 40 of the lens module 100 in this embodiment are separately disposed, so that, in the assembly process, the alignment assembly of the first lens Group 30 and the lens assembly 40 can be performed in an AA calibration manner, which can reduce the tolerance such as eccentricity and tilt in the assembly process of the lens module 100, can obtain the lens module 100 with high resolution, can also ensure the assembly yield of the lens module 100, and finally can assemble a multi-lens Group (multi-lens Group lens) module with good optical performance and high imaging quality.

EXAMPLE six

Referring to fig. 12 and 13, a sixth embodiment of the present invention discloses a lens module 100, and the structure of the lens module 100 is substantially the same as that of the lens module 100 in the first embodiment. In contrast, the first and second bearing steps 12 and 13 in the present embodiment are provided separately. In addition, the filter element 20 in this embodiment is stacked on the photosensitive chip 60, and at this time, the filter element 20 and the photosensitive chip 60 are bonded and connected through the second adhesive layer 80, and the second adhesive layer 80 is used for bonding and connecting to separate the filter element 20 and the photosensitive chip 60, so that the size of the lens module 100 in the optical axis direction can be reduced to a certain extent, and the miniaturization design of the lens module 100 is facilitated. Alternatively, the second adhesive layer 80 may be, for example, an adhesive glue layer or the like.

Like the embodiment, the first lens Group 30 and the lens assembly 40 of the lens module 100 in this embodiment are separately disposed, so that, in the assembly process, the alignment assembly of the first lens Group 30 and the lens assembly 40 can be performed in an AA calibration manner, which can reduce the tolerance such as eccentricity and tilt in the assembly process of the lens module 100, can obtain the lens module 100 with high resolution, can also ensure the assembly yield of the lens module 100, and finally can assemble a multi-lens Group (multi-lens Group lens) module with good optical performance and high imaging quality.

EXAMPLE seven

Referring to fig. 14 and 15, a seventh embodiment of the present invention discloses a lens module 100, and the structure of the lens module 100 is substantially the same as that of the lens module 100 in the first embodiment. The difference is that the side wall surface 122 of the first supporting step 12 in this embodiment is located on a side of the step surface 121 away from the optical axis of the lens module 100, and in a direction away from the step surface 121, a distance from the side wall surface 122 to the optical axis of the lens module 100 is unchanged, that is, the side wall surface 122 is parallel to the optical axis; correspondingly, the side wall surface 132 of the second supporting step 13 is located on a side of the step surface 131 away from the optical axis of the lens module 100, and in a direction away from the step surface 131, a distance from the side wall surface 132 to the optical axis of the lens module 100 is not changed, that is, the side wall surface 132 is parallel to the optical axis.

Like the embodiment, the first lens Group 30 and the lens assembly 40 of the lens module 100 in this embodiment are separately disposed, so that, in the assembly process, the alignment assembly of the first lens Group 30 and the lens assembly 40 can be performed in an AA calibration manner, which can reduce the tolerance such as eccentricity and tilt in the assembly process of the lens module 100, can obtain the lens module 100 with high resolution, can also ensure the assembly yield of the lens module 100, and finally can assemble a multi-lens Group (multi-lens Group lens) module with good optical performance and high imaging quality.

Example eight

Referring to fig. 15, the embodiment discloses an electronic device 300, where the electronic device 300 may be, for example, a mobile phone, a tablet computer, a telephone watch, a security camera, a vehicle-mounted camera, and the like, the electronic device includes a lens module 100 and a housing 301, and the lens module 100 is disposed on the housing 301. It can be understood that the electronic device 300 in the present embodiment has the lens module 100 described above, and therefore the electronic device 300 in the present embodiment has all the technical effects of the lens module 100 described above, and since the technical effects of the driving apparatus have been fully described above, the description thereof is omitted here.

The lens module and the electronic device disclosed in the embodiments of the present invention are described in detail above, and the principle and the implementation of the present invention are explained herein by using specific examples, and the description of the above embodiments is only used to help understanding the lens module and the electronic device and the core idea thereof; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, and in summary, the content of the present specification should not be understood as the limitation of the present invention.

Claims (15)

1. A lens module, comprising:

the lens module comprises a base, a light through hole is formed in the base, a first bearing step and a second bearing step are arranged on the inner side wall surface of the light through hole, the first bearing step and the second bearing step are sequentially and continuously arranged from the image side to the object side of the lens module, and the step surface of the first bearing step is closer to the optical axis of the lens module than the step surface of the second bearing step;

the light filtering element is arranged on the first bearing step;

a first lens group disposed on the second bearing step; and

the lens assembly is arranged at one end, close to the object side, of the base, and the lens assembly is arranged at the other end, close to the object side, of the lens module.

2. The lens module as recited in claim 1, wherein the first lens group comprises one or more lenses;

when the first lens group comprises a plurality of lenses, the lenses are sequentially stacked along the optical axis direction of the lens module, the second bearing steps are multiple, and the second bearing steps and the lenses are arranged in a one-to-one correspondence manner; or,

when the first lens group comprises a plurality of lenses, the plurality of lenses are sequentially stacked along the optical axis direction of the lens module, and the two adjacent lenses are connected in a bonding mode through a first bonding layer.

3. The lens module as claimed in claim 1, wherein the first and second bearing steps each comprise:

the step surface is vertical to the optical axis of the lens module;

the side wall surface is positioned on one side, far away from the optical axis, of the step surface, and the side wall surface is parallel to the optical axis or is obliquely arranged towards the outer side of the base.

4. The lens module as claimed in claim 1, wherein a corner of the first and second bearing steps is provided with a chamfer.

5. The lens module as claimed in any one of claims 1-4, wherein the lens module further comprises a circuit board and a photosensitive chip, the base is disposed on the circuit board, and the photosensitive chip is disposed on the circuit board and aligned with the light-passing hole.

6. The lens module as claimed in claim 5, further comprising a carrier plate, wherein the circuit board is disposed on the carrier plate, and a positioning hole is disposed on the circuit board, and the photo sensor chip is disposed in the positioning hole and fixed to the carrier plate.

7. The lens module as claimed in claim 5, wherein the circuit board has a positioning groove, and the photo sensor chip is disposed in the positioning groove.

8. The lens module as claimed in claim 5, wherein a limiting flange is disposed on an inner side wall surface of the light passing hole, the photosensitive chip has an outer edge, and at least a portion of the outer edge abuts against the limiting flange.

9. The lens module as claimed in claim 5, wherein the photosensitive chip is protruded from the circuit board, an avoiding groove is formed on a side of the base close to the circuit board, and the photosensitive chip is located in the avoiding groove.

10. The lens module as claimed in claim 5, wherein the filter element is stacked on the photo-sensor chip, and the photo-sensor chip and the filter element are bonded together by a second bonding layer.

11. The lens module as recited in claim 5, wherein the base is an injection molded part, and the injection molded part is integrally formed with the circuit board.

12. The lens module as claimed in claim 5, wherein the circuit board has electronic components embedded therein.

13. The lens module as claimed in any one of claims 1 to 4, wherein the filter element is fixed to the first carrier by bonding or fitting; and/or the presence of a gas in the gas,

the first lens group is fixed on the second bearing part in a bonding or fitting mode.

14. The lens module as claimed in any one of claims 1-4, wherein the lens assembly includes a lens barrel fixedly disposed on the base and a second lens group disposed within the lens barrel, the second lens group including one or more lenses.

15. An electronic device, characterized in that the electronic device comprises a lens module according to any one of claims 1-14.

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