CN215499221U - Lens structure, camera module and electronic equipment - Google Patents

Abstract

The utility model discloses a lens structure, a camera module and electronic equipment, wherein the lens structure comprises a lens barrel and an optical filter, the image side surface of the image side end of the lens barrel is provided with a step groove, the step groove comprises an accommodating groove and an avoiding groove which are mutually communicated, the avoiding groove surrounds the periphery of the accommodating groove, the optical filter is arranged in the accommodating groove, part of the optical filter is positioned outside the accommodating groove, a gap is formed between the outer surface of the optical filter and the inner wall surface of the accommodating groove to form a dispensing space, and the dispensing space can be used for accommodating an adhesive medium to fix the optical filter in the accommodating groove. The lens structure, the camera module and the electronic equipment provided by the utility model can increase the glue dispensing space of the optical filter so as to increase the contact area of glue, the lens cone and the optical filter, thereby increasing the thrust of the lens structure and improving the stability of the lens structure; and the total height of the lens cone in the optical axis direction is favorably reduced to enlarge the mechanical back focus of the lens structure, so that the camera module can leave enough focusing space, and the focusing of the camera module is convenient.

Description

Lens structure, camera module and electronic equipment

Technical Field

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

Background

With the development of the camera technology, people have higher and higher requirements on the imaging quality of the lens structure, and meanwhile, the structural characteristics of lightness, thinness and miniaturization gradually become the development trend of the lens structure. In the related art, under the design trend of satisfying the frivolous miniaturization of lens structure, the burnt undersize behind the machinery of lens structure for the module of making a video recording is difficult to leave sufficient focusing space, is unfavorable for the focusing of the module of making a video recording, thereby probably can influence the formation of image quality of the module of making a video recording.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses a lens structure, a camera module and electronic equipment, which not only can increase the glue dispensing space of an optical filter, increase the thrust of the lens structure and improve the stability of the lens structure, but also is beneficial to expanding the mechanical back focus of the lens structure.

In order to achieve the above object, in a first aspect, the present invention discloses a lens structure, including:

the lens cone comprises a lens cone body, wherein a stepped groove is formed in the image side surface of the image side end of the lens cone body, the stepped groove comprises an accommodating groove and an avoiding groove which are communicated with each other, the accommodating groove is arranged close to the object side end of the lens cone body, and the avoiding groove surrounds the periphery of the accommodating groove; and

the optical filter is arranged in the accommodating groove, the optical filter extends from the inside of the accommodating groove to the outside of the accommodating groove and is positioned in the avoiding groove, a gap is formed between the outer surface of the optical filter and the inner wall surface of the accommodating groove to form a dispensing space, and the dispensing space is used for accommodating an adhesive medium to fix the optical filter in the accommodating groove.

The embodiment provides in the lens cone, through the image side of lens cone sets up the ladder groove, the ladder groove includes the storage tank and dodges the groove to and arrange the light filter in the storage tank, and the light filter extends to the storage tank in from the storage tank and lies in outside the groove of dodging, promptly, the light filter can bulge outside the storage tank, is favorable to reducing the lens cone like this at the ascending total height of optical axis side, enlarges burnt behind the machinery of lens structure, thereby when being applied to camera module with the lens structure, be favorable to making camera module can leave sufficient focusing space, the focusing of camera module of being convenient for, and then be favorable to promoting camera module's the formation of image quality.

Further, a gap is formed between the outer surface of the optical filter and the inner wall surface of the accommodating groove to form a glue dispensing space of the optical filter, so that glue can be dispensed on the side surface of the optical filter and/or one surface of the optical filter facing the bottom surface of the accommodating groove, the glue dispensing position of the optical filter is changed, and the glue dispensing space is also enlarged, so that the risk that the glue overflows to the surface of the lens due to excessive glue can be reduced, the contact area of the glue, the lens barrel and the optical filter can be increased, namely the gluing area of the optical filter and the lens barrel is increased, the bonding strength is improved, the thrust between the optical filter and the lens barrel is increased, the connection stability between the optical filter and the lens barrel is improved, and the quality reliability of a lens structure is ensured.

Furthermore, the avoiding groove is arranged on the image side surface of the image side end of the lens barrel, so that when the lens barrel is matched with other parts (such as an electronic photosensitive chip) of the camera module, the avoiding groove can avoid the other parts of the camera module, the image side end of the lens barrel can be prevented from interfering with the other parts of the camera module, and the camera module can be assembled normally.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, in the optical axis direction, the depth of the receiving groove is D, the thickness of the optical filter is D, D ≧ D/2, and in a direction perpendicular to the optical axis, the distance between the inner side wall surface of the receiving groove and the optical filter is H, 0.025mm ≦ H ≦ 1.00 mm. Because the degree of depth D of storage tank to and the inside wall face of storage tank with distance H between the light filter can influence the size in space is glued to the point, consequently, through rationally controlling the degree of depth D of storage tank, and the inside wall face of storage tank with distance H between the light filter is big or small, is favorable to making the storage tank with form great point between the light filter and glue the space, in order to ensure the light filter with have great veneer area between the lens cone, improve the light filter with connection stability between the lens cone.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, in a direction from the object side end of the lens barrel to the image side end of the lens barrel, a portion of the optical filter located in the avoiding groove is lower than an image side surface of the image side end of the lens barrel, that is, the optical filter does not protrude out of the avoiding groove, so that the optical filter can be protected by the avoiding groove while interference between the image side end of the lens barrel and other components of the image capturing module is avoided, and risks of scratching and soiling the optical filter are reduced.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the filter includes any one of a circular filter, a quasi-circular filter, and a polygonal filter. It can be seen that the shape of the filter in the camera module provided by this embodiment is not limited to a circle, and may also be, for example, a quasi-circle or a polygon. For example, when the filter includes a square filter, the processing difficulty and the processing cost of the square filter are lower than those of a circular filter, thereby being beneficial to reducing the manufacturing cost of the filter.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the lens structure further includes a limiting component, the limiting component is located in the dispensing space, and the limiting component is respectively connected to the inner wall surface of the accommodating groove and the optical filter to limit the position of the optical filter in the accommodating groove. Therefore, when the optical filter is assembled, the position of the optical filter in the accommodating groove can be limited by the limiting component, and then the adhesive dispensing is carried out in the adhesive dispensing space around the optical filter, so that the optical filter is prevented from moving in the adhesive dispensing process to influence the installation of the optical filter.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, when the optical filter is a square optical filter, the limiting component is located at a corner of the optical filter to limit the position of the optical filter in the accommodating groove. Through locating the limit component at the corner of the glue dispensing space corresponding to the optical filter, the limit component can be utilized to limit the optical filter and also can be utilized to position the optical filter.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the optical filter has a first side edge and a second side edge, the first side edge and the second side edge intersect with a corner of the optical filter, the limiting component includes a horizontal portion and a vertical portion connected at a right angle, one of the horizontal portion and the vertical portion is attached to the first side edge, and the other of the horizontal portion and the vertical portion is disposed at an interval from the second side edge. Therefore, the optical filter can only move along one direction when being arranged in the accommodating groove, the limiting component can limit the optical filter, the assembly between the limiting component and the optical filter is convenient, and the assembly error between the limiting component and the optical filter can be reduced to a certain extent.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, in the optical axis direction, a thickness of the position limiting member is smaller than a depth of the receiving groove. Through will the thickness control of stop part is in this within range of being less than the degree of depth of storage tank, can guarantee stop part can be right the light filter plays spacing effect for form the space of overflowing glue between the side of the interior lateral wall face of stop part, storage tank and light filter, the condition of overflowing glue appears when avoiding the point to glue.

In a second aspect, the present invention discloses a camera module having the lens structure as described in the first aspect. The camera module with the lens cone structure can not only enlarge mechanical back focus, but also increase the volume of a glue dispensing space, so that the contact area of glue, the lens cone and the optical filter can be increased, and further the thrust of the lens structure is increased and the stability of the lens structure is improved.

In a third aspect, the utility model discloses an electronic device having the camera module set of the second aspect. The electronic equipment with the camera module can not only enlarge mechanical back focus, but also increase the volume of a glue dispensing space, thereby increasing the contact area of glue, a lens cone and an optical filter, further increasing the thrust of a lens structure and improving the stability of the lens structure.

Compared with the prior art, the utility model has the beneficial effects that:

(1) can enlarge the focus behind the lens structure's machinery, the focusing of the module of making a video recording of being convenient for. According to the lens structure, the camera module and the electronic device provided by the embodiment of the utility model, the stepped groove is arranged on the image side surface of the image side end of the lens barrel and comprises the accommodating groove and the avoiding groove which are communicated with each other, the optical filter is arranged in the accommodating groove and extends from the inside of the accommodating groove to the outside of the accommodating groove and is positioned in the avoiding groove, namely, the optical filter protrudes out of the accommodating groove, so that the total height of the lens barrel in the optical axis direction is favorably reduced, the mechanical back focus of the lens structure is expanded, the camera module can be favorably provided with enough focusing space, the focusing of the camera module is facilitated, and the imaging quality of the camera module is favorably improved.

(2) The glue dispensing space of the optical filter can be enlarged, and the connection stability between the optical filter and the lens cone is improved. Through setting up the storage tank, can form the point between the internal face of storage tank and the surface of light filter and glue the space, thereby can glue at the side of light filter and/or the one side point of light filter orientation storage tank bottom surface, change the point and glue the position of light filter, in order to enlarge the point and glue the space, therefore, not only can reduce the risk of overflowing to the lens surface because of glue is too much, but also increase glue, the area of contact of lens cone and light filter, increase the veneer area of light filter and lens cone promptly, improve bonding strength, thereby increase the thrust between light filter and the lens cone, the connection stability between light filter and the lens cone has been improved, make the quality reliability of camera lens structure obtain guaranteeing.

(3) The interference between the image side end of the lens barrel and other parts of the camera module can be avoided, so that the camera module can be normally assembled. Through the arrangement of the avoiding groove, when the lens barrel is matched with other parts (such as an electronic photosensitive chip) of the camera module, the avoiding groove can avoid the other parts of the camera module, so that the image side end of the lens barrel can be prevented from interfering with the other parts of the camera module, and the assembly of the camera module can be normally carried out.

(4) The manufacturing cost of the optical filter is reduced. The accommodating groove is arranged for accommodating the optical filter, and the shape of the accommodating groove can be determined according to actual conditions and is not limited to a circular accommodating groove any more, so that the lens barrel can accommodate the square optical filter, and the shape of the optical filter is not limited to a circle any more; moreover, the requirement on the machining precision of the circular filter is high, and the machining is difficult, so that the manufacturing cost of the circular filter is higher than that of the square filter, namely, the square filter is adopted, and the manufacturing cost of the filter is favorably reduced.

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 schematic structural view of a lens structure disclosed in the related art;

FIG. 2 is a cross-sectional view of the lens structure of FIG. 1 taken along the direction a-a;

fig. 3 is a schematic view of a three-dimensional structure of a lens structure dispensed on a side surface of an optical filter according to an embodiment of the present invention;

FIG. 4 is an exploded view of the lens structure of FIG. 3;

fig. 5 is a front view of the lens structure in fig. 3;

FIG. 6 is a cross-sectional view of the lens structure of FIG. 5 taken along the direction b-b;

fig. 7 is a partial enlarged view at N in fig. 6;

fig. 8 is a schematic structural view of dispensing of the lens structure at the bottom surface of the accommodating groove according to the embodiment of the present invention;

FIG. 9 is a cross-sectional view of the lens structure of FIG. 8 taken along the direction c-c;

fig. 10 is a schematic perspective view of a lens structure including a position limiting component according to an embodiment of the disclosure;

fig. 11 is a front view of the lens structure in fig. 10;

fig. 12 is a partial enlarged view at P in fig. 11;

FIG. 13 is a cross-sectional view of the lens structure of FIG. 11 taken along the direction d-d;

fig. 14 is a block diagram of a camera module disclosed in the embodiment of the present invention;

fig. 15 is a block diagram of an electronic device according to an embodiment of the present invention.

Icon: 1000. dispensing space; 100. a lens structure; 1. a lens barrel; 10. an image side end; 101. an image side; 102. a stepped groove; 103. a containing groove; 1031. a bottom surface; 1032. an inner sidewall surface; 104. an avoidance groove; 1041. a notch; 1042. a first sub-sidewall; 1043. a second sub-sidewall; 105. a glue overflow groove; 11. an object-side end; 2. an optical filter; 20a, a side surface; 20b, end faces; 21. a first side edge; 22. a second side edge; 3. a limiting component; 31. a horizontal portion; 32. a vertical portion; 200. a camera module; 300. an electronic device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model 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 meanings of these terms in the present invention can be understood by those skilled 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 meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

As shown in fig. 1 and 2, the optical filter 2 in the related art is usually disposed in the lens barrel 1, and usually a circular optical filter is used to match with the inner wall of the lens barrel 1, and glue is applied to a surface of the optical filter 2 facing the image side surface of the image side end of the lens barrel 1 to fix the optical filter 2 in the lens barrel 1, where C in fig. 1 and 2 is glue. However, by adopting such a manner, the dispensing space is relatively small, the dispensing amount between the optical filter 2 and the inner wall of the lens barrel 1 is relatively small, the thrust of the lens structure is relatively small, the stability of the lens structure is affected, and the yield and the quality of the lens structure are further affected. Moreover, in the optical axis direction O, the total height L1 of the lens structure is usually 2.652mm, that is, the total height L1 of the lens structure is relatively large, so that the focusing space of the camera module is relatively small, which is not beneficial to focusing of the camera module. For example, the mechanical back focus M1 for this type of lens structure is typically 0.53 mm.

Based on this, the application discloses a camera lens structure, the space can not only be glued to the point that can not only increase the light filter, the thrust of increase camera lens structure with improve camera lens structure's stability, still be favorable to enlarging the focus behind the machinery of camera lens structure enough.

The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Referring to fig. 3 and 4, an embodiment of the utility model discloses a lens structure, and the lens structure 100 can be applied to a camera module to receive an optical signal of a subject. The lens structure 100 includes a lens barrel 1 and a filter 2, an image side 101 of an image side end 10 of the lens barrel 1 is provided with a stepped groove 102, the stepped groove 102 includes an accommodating groove 103 and an avoiding groove 104 which are communicated with each other, the accommodating groove 103 is disposed near an object side end 11 of the lens barrel 1, and the avoiding groove 104 surrounds an outer periphery of the accommodating groove 103. The inner wall surface of the accommodating groove 103 includes a bottom surface 1031 and an inner wall surface 1032 which are connected with each other, the object side end 11 of the lens barrel 1 is provided with a placing space for placing a lens, a light through hole 1b is arranged at a position close to the image side end 10 of the lens barrel 1, and the light through hole 1b penetrates through the bottom surface 1031 of the accommodating groove 103, so that the accommodating groove 103 is communicated with the placing space, and light can sequentially pass through the lens and the optical filter 2 to enter an imaging surface.

Specifically, referring to fig. 5 and 6, the optical filter 2 is disposed in the accommodating groove 103 and covers the light passing hole 1b, the optical filter 2 extends from the inside of the accommodating groove 103 to the outside of the accommodating groove 103 and is disposed in the avoiding groove 104, a gap is formed between an outer surface of the optical filter 2 and an inner wall surface of the accommodating groove 103 to form a dispensing space 1000, wherein the outer surface of the optical filter 2 includes a side surface 20a and an end surface 20b that are connected to each other, the side surface 20a is disposed toward an inner side wall surface 1032 of the accommodating groove 103, and the end surface 20b is disposed toward a bottom surface 1031 of the accommodating groove 103. That is, the dispensing space 1000 may be formed between the side surface 20a of the optical filter 2 and the inner side wall 1032 of the receiving cavity 103, or the dispensing space 1000 may be formed between the end surface 20b of the optical filter 2 and the bottom surface 1031 of the receiving cavity 103, or the dispensing space 1000 may be formed between the side surface 20a of the optical filter 2 and the inner side wall 1032 of the receiving cavity 103, and between the end surface 20b of the optical filter 2 and the bottom surface 1031 of the receiving cavity 103, so as to jointly form the dispensing space 1000, and the dispensing space 1000 may be used for accommodating an adhesive medium a (such as a black region shown in fig. 5) to fix the optical filter 2 in the receiving cavity 103, that is, so that the dispensing space 1000 may be used for fixing the optical filter 2 in the receiving cavity 103.

It can be known from the foregoing, in the lens structure 100 that this application embodiment provided, light filter 2 arranges in storage tank 103 and extends to storage tank 103 from storage tank 103 in and be located outside the storage tank 104 of dodging, namely, light filter 2 is outside protrusion to storage tank 103, is favorable to dwindling lens barrel 1 at the ascending overall height L2 of optical axis direction like this, enlarges the burnt behind the machinery of lens structure 100 to be favorable to making the camera module group can leave sufficient focusing space, be convenient for the focusing of camera module group, and then be favorable to promoting the imaging quality of camera module group. For example, the mechanical back focus M2 of the lens structure 100 provided in the embodiment of the present application may be 0.60mm, and the total height of the lens structure 100 provided in the embodiment of the present application in the optical axis direction O is 2.582 mm.

Further, since in the lens structure 100 provided in the present application, on one hand, the dispensing space 1000 may be formed between the inner sidewall surface 1032 of the accommodating groove 103 and the side surface 20a of the optical filter 2, and/or, a dispensing space 1000 is formed between the bottom surface 1031 of the receiving cavity 103 and the end surface 20b of the filter 2, thereby dispensing on the side surface 20a of the optical filter 2 and/or the end surface 20b of the optical filter 2, changing the dispensing position of the optical filter 2, enlarging the dispensing space, thus, not only the risk of excessive glue overflowing to the lens surface through the light-transmitting hole 1b is reduced, but also the contact area of the glue, the lens barrel 1 and the optical filter 2 is increased, namely, the bonding area of the optical filter 2 and the lens barrel 1 is increased, and the bonding strength is improved, so that the thrust between the optical filter 2 and the lens barrel 1 can be increased, and the connection stability between the optical filter 2 and the lens barrel 1 is improved. On the other hand, when the lens structure 100 is assembled to a camera module, on the premise that the overall height (optical axis direction) of the camera module is not increased, the avoiding groove 104 can provide an accommodating space for other components (such as a photosensitive chip, a capacitor, and the like) of the camera module to avoid the other components of the camera module, thereby effectively avoiding mutual interference generated between different components and ensuring that the assembly of the camera module can be normally performed; still be favorable to ensureing the miniaturized design of making a video recording the module simultaneously.

It can be understood that, by forming the accommodating groove 103 and the avoiding groove 104 on the image side surface 101 of the image side end 10 of the lens barrel 1, utilizing the avoiding groove 104 to avoid other components of the camera module, and utilizing the gap between the inner wall surface of the accommodating groove 103 and the outer peripheral surface of the optical filter 2 to form the dispensing space 1000, the dispensing space of the optical filter 2 can be increased while avoiding interference between the image side end 10 of the lens barrel 1 and other components of the camera module, so as to increase the contact area of the glue, the lens barrel and the optical filter 2, thereby increasing the thrust of the lens structure 100 and improving the stability of the lens structure 100.

Since the lens structure 100 provided in the present application is provided with the receiving groove 103 for placing the optical filter 2, and the shape of the receiving groove 103 can be determined according to actual conditions, and is not limited to a circular receiving groove, that is, the receiving groove 103 can be a circular groove, a quasi-circular groove, a square groove, and the like, and accordingly, the optical filter is not limited to a circular optical filter, but can also be an optical filter with other shapes, such as a quasi-circular optical filter or a square optical filter, and the shape of the optical filter 2 is not limited to a circular shape.

Illustratively, the filter 2 may include any one of a circular filter, a circular-like filter, and a polygonal filter. The polygonal filter can be a triangular filter, a square filter, a pentagonal filter, a hexagonal filter, or the like. When the camera module that this application provided adopts square filter, because the machining precision requirement of circular filter is higher, it is more difficult to process, consequently, the manufacturing cost of circular filter also is higher for square filter, consequently adopts square filter, is favorable to reducing the manufacturing cost of filter 2. And the corner of the square optical filter that this application adopted can be right angle or fillet etc..

When the optical filter 2 is assembled, as shown in fig. 4 and 6, fig. 5 and 6 show that a dispensing space 1000 is formed between the side surface 20a of the optical filter 2 and the inner side wall surface 1032 of the accommodating groove, the optical filter 2 may be first placed in the accommodating groove 103, and then dispensing is performed on a gap between the side surface 20a of the optical filter 2 and the inner side wall surface 1032 of the accommodating groove 103, so as to fix the optical filter 2 in the accommodating groove 103; alternatively, as shown in fig. 4, 8 and 9, fig. 8 and 9 show that a dispensing space 1000 is formed between the end surface 20b of the filter 2 and the bottom surface 1031 of the receiving groove, dispensing may also be performed on the bottom surface 1031 of the receiving groove 103, and then the filter 2 is placed in the receiving groove 103, so as to fix the filter 2 in the receiving groove 103. The above dispensing method can fix the optical filter 2 in the receiving groove 103, so the dispensing method of the optical filter 2 is not limited in this embodiment.

It is understood that, in other embodiments, the adhesive may be dispensed on the bottom surface 1031 of the receiving cavity 103, then the filter 2 is placed in the receiving cavity 103, and finally the adhesive is dispensed on the gap between the side surface 20a of the filter 2 and the inner side wall 1032 of the receiving cavity 103, so as to fix the filter 2 in the receiving cavity 103.

In some embodiments, referring to fig. 4 to 6 again, a glue overflow slot 105 is disposed at a connection between one side of the light-passing hole 1b close to the image-side end 10 of the lens barrel 1 and the bottom surface 1031 of the accommodating slot 103, the glue overflow slot 105 is a ring-shaped step formed by the bottom surface 1031 sinking toward the object-side end 11 of the lens barrel 1, and the glue overflow slot 105 is communicated with the glue dispensing space 1000, so that the glue overflow slot 105 can accommodate the bonding medium a overflowing from the glue dispensing space 1000 when the bonding medium a in the glue dispensing space 1000 is too much and overflows from the glue dispensing space 1000 through the bottom surface 1031, so that the glue overflow slot 105 can accommodate the bonding medium a overflowing from the glue dispensing space 1000 during glue dispensing, thereby preventing the overflowing bonding medium a from overflowing to the lens in the lens barrel 1 through the light-passing hole 1b to a certain extent, and further reducing a risk of overflowing to a lens surface due to the excessive bonding medium.

In some embodiments, the sidewall of the avoiding groove 104 is provided with two oppositely arranged notches 1041 to divide the sidewall of the avoiding groove 104 into two oppositely arranged first sub-sidewalls 1042 and second sub-sidewalls 1043. Through the two oppositely arranged gaps 1041, when the lens barrel 1 is assembled to a camera module, the position of the lens barrel 1 corresponding to the gap 1041 can avoid other parts of the camera module, so that the image side end 10 of the lens barrel 1 is prevented from interfering with other parts of the camera module, and the space utilization rate is better.

Further, in a direction from the object side end 11 of the lens barrel 1 to the image side end 10 of the lens barrel 1, a portion of the filter 2 located in the avoiding groove 104 is lower than the image side surface 101 of the image side end 10 of the lens barrel 1, that is, the filter 2 does not protrude out of the avoiding groove 104. Thus, the image side end 10 of the lens barrel 1 is prevented from interfering with other parts of the camera module, and the avoiding groove 104 is used for protecting the optical filter 2, so that the risk of scratching and polluting the optical filter 2 is reduced.

In some embodiments, as shown in fig. 6 and 7, the depth of the accommodating groove 103 in the optical axis direction O is D, the thickness of the optical filter 2 in the optical axis direction O is D ≧ D/2, for example, D ═ D/2, D ≧ 4D/7, D ═ 5D/8, D ═ 3D/4, or D ═ 7D/8, and so on. The distance between the inner wall surface 1032 of the accommodation groove 103 and the side surface 20a of the filter 2 in the direction perpendicular to the optical axis is H, 0.025mm or less and H is 1.00mm, for example, H is 0.025mm, H is 0.03mm, H is 0.04mm, H is 0.05mm, H is 0.07mm, H is 0.1mm, H is 0.2mm, H is 0.4mm, H is 0.5mm, H is 0.7mm, H is 0.9mm, or H is 1.00 mm. Because the degree of depth D of storage tank 103 to and the distance H between the side 20a of the inside wall surface 1032 of storage tank 103 and optical filter 2, can influence the size of the space 1000 of gluing, consequently, through the size of rationally controlling D and H, promptly, the degree of depth D of storage tank 103, and the inside wall surface 1032 of storage tank 103 with distance H between the side 20a of optical filter 2 adopts above-mentioned size, be favorable to making and form great glue dispensing space 1000 between storage tank 103 and the optical filter 2, so not only more make things convenient for the operation of gluing, and make and glue enough bonding medium that can fill in the space 1000 in the glue dispensing space 1000, in order to ensure to have great veneer area between the internal face of optical filter 2 and storage tank 103, thereby improve the connection stability between optical filter 2 and lens barrel 1.

In some embodiments, as shown in fig. 10 and 11, fig. 10 and 11 show that the lens structure 100 further includes a limiting member 3, and the limiting member 3 is located in the dispensing space 1000 and is respectively connected to the inner wall surface (the bottom surface 1031 and the inner side wall surface 1032) of the accommodating groove 103 and the side surface 20a of the optical filter 2 to limit the position of the optical filter 2 in the accommodating groove 103. Thus, during assembly, the position of the optical filter 2 in the accommodating groove 103 can be limited by the limiting component 3, and then the adhesive dispensing is performed in the adhesive dispensing space 1000 around the optical filter 2, so that the optical filter 2 is prevented from being moved in the adhesive dispensing process to affect the installation of the optical filter 2, and meanwhile, a larger gap is ensured between the inner side wall 1032 of the accommodating groove 103 and the side surface 20a of the optical filter 2, so as to ensure that the optical filter 2 has a larger adhesive dispensing space 1000.

In the embodiment shown in fig. 10 and 11, the filter 2 is a square filter, and the position limiting member 3 may be located at a corner of the filter 2 to limit the position of the filter 2 in the accommodating groove 103. Through locating limit component 3 and gluing the edge that space 1000 corresponds light filter 2, not only can utilize limit component 3 plays spacing effect to light filter 2, also can utilize simultaneously limit component 3 plays the effect of location to the installation of light filter 2.

Further, the number of the limiting parts 3 may be at least one, for example, one, two, three, or four. In detail, when there is one limiting component 3, the limiting component 3 may be located at any one of four corners of the optical filter 2; when two limiting parts 3 are provided, the two limiting parts 3 can be respectively positioned at any two corners of the four corners of the optical filter 2, and the two limiting parts 3 are arranged at intervals; when the number of the limiting parts 3 is three, the three limiting parts 3 can be respectively positioned at any three corners of the four corners of the optical filter 2, and the three limiting parts 3 are arranged at intervals; when the number of the limiting parts 3 is four, the four limiting parts 3 can be respectively positioned at four corners of the optical filter 2, and the four limiting parts 3 are arranged at intervals.

It can be understood that, when there are a plurality of limiting members 3, the contact area between the limiting members 3, the optical filter 2 and the lens barrel 1 can be increased to enhance the limiting effect of the limiting members 3 on the optical filter 2.

In the embodiment shown in fig. 11 and 12, the filter 2 has a first side 21 and a second side 22, and specifically, the side surface 20a of the filter 2 has the first side 21 and the second side 22, and the first side 21 and the second side 22 intersect to form a corner of the filter 2. The limiting component 3 may include a horizontal portion 31 and a vertical portion 32 connected at a right angle, one of the horizontal portion 31 and the vertical portion 32 is attached to the first side edge 21, and the other of the horizontal portion 31 and the vertical portion 32 is spaced apart from the second side edge 22. Therefore, the optical filter 2 can only move along one direction when being placed in the accommodating groove 103, the limiting part 3 can limit the optical filter 2, the limiting part 3 and the optical filter 2 can be assembled conveniently, and the assembling error between the limiting part 3 and the optical filter 2 can be reduced to a certain extent.

In some embodiments, as shown in fig. 13, in the optical axis direction O, the thickness b of the limiting member 3 may be smaller than the depth D of the accommodating groove 103. Through controlling the thickness of the limiting part 3 in the range of the depth smaller than the accommodating groove 103, the limiting part 3 can play a limiting role in the optical filter 2, and meanwhile, an adhesive overflowing space is formed among the limiting part 3, the inner side wall surface of the accommodating groove 103 and the side surface of the optical filter 2, so that the adhesive overflowing condition during dispensing is avoided.

Referring to fig. 14, the present application further discloses a camera module 200 having the lens structure 100. It can be understood that, since the camera module 200 has the lens structure 100, the camera module 200 having the lens structure 100 also has all the technical effects of the lens structure 100. That is, the camera module 200 provided in this embodiment can have a larger mechanical back focus, and can also dispense at the side and/or end face of the optical filter, so that the dispensing position of the optical filter is changed, and the dispensing space is enlarged, thereby reducing the risk of excessive glue overflowing to the surface of the lens, and increasing the contact area of the glue, the lens barrel and the optical filter, that is, increasing the gluing area of the optical filter and the lens barrel, and improving the bonding strength, thereby increasing the thrust between the optical filter and the lens barrel, improving the connection stability between the optical filter and the lens barrel, and ensuring the yield and quality of the lens structure. Since the above technical effects have been described in detail in the embodiment of the lens structure 100, they are not described herein again.

Referring to fig. 15, an electronic device 300 having the camera module 200 is disclosed. It can be understood that, since the camera module 200 has the lens structure 100, the electronic device 300 having the camera module 200 also has all the technical effects of the lens structure 100. That is, the lens structure that this embodiment provided can have great mechanical back focal, can also glue at the side and/or the terminal surface point of light filter simultaneously, make the some glue position of light filter change, the space of gluing has been enlarged, can reduce like this because of the too much risk that overflows to the lens surface of glue, and can also increase glue, the area of contact of lens cone and light filter, can increase the veneer area of light filter and lens cone promptly, improve bonding strength, thereby increase the thrust between light filter and the lens cone, the connection stability between light filter and the lens cone has been improved, ensure the yield and the quality of lens structure. Since the above technical effects have been described in detail in the embodiment of the lens structure 100, they are not described herein again.

The lens structure, the camera module and the electronic device disclosed by the embodiment of the utility model are described in detail, a specific example is applied in the description to explain the principle and the implementation mode of the utility model, and the description of the embodiment is only used for helping to understand the lens structure, the camera module and the electronic device and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (10)

1. A lens structure, comprising:

the lens cone comprises a lens cone body, wherein a stepped groove is formed in the image side surface of the image side end of the lens cone body, the stepped groove comprises an accommodating groove and an avoiding groove which are communicated with each other, the accommodating groove is arranged close to the object side end of the lens cone body, and the avoiding groove surrounds the periphery of the accommodating groove; and

the optical filter is arranged in the accommodating groove, the optical filter extends from the inside of the accommodating groove to the outside of the accommodating groove and is positioned in the avoiding groove, a gap is formed between the outer surface of the optical filter and the inner wall surface of the accommodating groove to form a dispensing space, and the dispensing space is used for accommodating an adhesive medium to fix the optical filter in the accommodating groove.

2. The lens structure as claimed in claim 1, wherein the depth of the receiving groove is D, the thickness of the filter is D, D is greater than or equal to D/2, and the distance between the inner wall surface of the receiving groove and the filter is H, H is greater than or equal to 0.025mm and less than or equal to 1.00mm in the direction perpendicular to the optical axis.

3. The lens structure according to claim 1, wherein a portion of the filter located in the avoiding groove is lower than an image side surface of an image side end of the lens barrel in a direction from the object side end of the lens barrel to the image side end of the lens barrel.

4. The lens structure according to claim 1, wherein the filter includes any one of a circular filter, a circular-like filter, and a polygonal filter.

5. The lens structure according to claim 1, further comprising a limiting member located in the dispensing space, the limiting member being connected to the inner wall surface of the accommodating groove and the optical filter, respectively, so as to limit the position of the optical filter in the accommodating groove.

6. The lens structure according to claim 5, wherein when the filter is a square filter, the position limiting member is located at a corner of the filter.

7. The lens structure according to claim 6, wherein the optical filter has a first side edge and a second side edge, the first side edge and the second side edge intersect to form a corner of the optical filter, the limiting member includes a horizontal portion and a vertical portion connected at a right angle, one of the horizontal portion and the vertical portion is attached to the first side edge, and the other of the horizontal portion and the vertical portion is spaced from the second side edge.

8. The lens structure according to claim 5, wherein a thickness of the position limiting member is smaller than a depth of the accommodating groove in the optical axis direction.

9. A camera module, characterized in that the camera module has a lens structure according to any one of claims 1 to 8.

10. An electronic apparatus characterized by having the camera module according to claim 9.

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