CN211786296U - Light-transmitting component, lens module and electronic equipment - Google Patents

Abstract

The application discloses printing opacity subassembly, camera lens module and electronic equipment. The light-transmitting assembly comprises a lens, a light filter and adhesive glue, the lens comprises an image side end face, the image side end face comprises an imaging area and a connecting area located on the periphery of the imaging area, and a glue dispensing groove is formed in the outer edge of the connecting area. The optical filter is abutted against the connecting area, and the bonding glue is filled in a gap between the glue dispensing groove and the optical filter, wherein the connecting area is also provided with a glue storage groove, and the glue storage groove can store the bonding glue overflowing from the glue dispensing groove to the imaging area when the glue dispensing operation is carried out on the lens and the optical filter, so that the problem of glue overflowing during bonding can be obviously improved by arranging the glue storage groove in the connecting area, and the pollution to the lens is avoided so as to improve the imaging quality. And a plurality of glue storage grooves are arranged at the outer edge of the connecting area of the lens for storing the bonding glue, so that the bonding area of the optical filter and the connecting area can be increased, and the bonding strength of the lens and the optical filter is further improved.

Description

Light-transmitting component, lens module and electronic equipment

Technical Field

The application relates to the field of optical devices, in particular to a light-transmitting component, a lens module and electronic equipment.

Background

Along with the development of science and technology, the imaging quality of camera equipment receives more and more attention, and camera equipment's major structure is its lens module, and the lens module comprises lens cone and printing opacity subassembly, and the quality direct influence camera equipment's imaging quality of printing opacity subassembly.

Currently, a light-transmitting component of an image pickup apparatus includes a lens and an optical filter, and the lens and the optical filter of the light-transmitting component are bonded together by an adhesive. However, the amount of the adhesive is difficult to control during the bonding operation, and the problem that the adhesive overflows to the effective imaging area of the lens is easy to occur, thereby seriously affecting the imaging quality of the camera equipment.

SUMMERY OF THE UTILITY MODEL

The application provides a printing opacity subassembly, camera lens module and electronic equipment, bonding glue overflows lens imaging area and solves the problem of glue miscellaneous light when can effectively solve the lens of printing opacity subassembly and light filter and carry out some glue operations.

According to a first aspect of the present application, there is provided a light transmission component comprising:

the lens comprises an image side end face, the image side end face comprises an imaging area and a connecting area located on the periphery of the imaging area, and a point glue groove is formed in the outer edge of the connecting area;

an optical filter abutting against the connection region;

the adhesive glue is filled in the gap between the glue dispensing groove and the optical filter;

the connecting area is also provided with a glue storage groove, the glue storage groove is positioned between the glue dispensing groove and the imaging area and is used for storing bonding glue overflowing towards the imaging area in the glue dispensing groove.

The effects in the above embodiment are: the connecting area is provided with a glue storage groove which can store bonding glue overflowing from the glue dispensing groove to the imaging area when the glue dispensing operation is carried out on the lens and the optical filter, and the problem of glue flare can be effectively solved.

Optionally, the depth dimension of the glue storage groove is smaller than the depth dimension of the glue dispensing groove along the thickness direction of the lens.

The effects in the above embodiment are: the adhesive storage tank is used for better containing the adhesive overflowing from the adhesive storage tank to the imaging area, and the problem of glue flare can be effectively solved.

Optionally, the glue dispensing groove is circular and arranged around the imaging area.

The effects in the above embodiment are: the circular glue dispensing groove can increase the glue joint area of the optical filter and the lens, enhance the connection strength between the optical filter and the lens and effectively solve the problem of glue flare.

Optionally, the glue storage groove is communicated with the glue dispensing groove, and the glue storage groove extends along the radial direction of the glue dispensing groove.

The effects in the above embodiment are: the glue storage groove is communicated with the glue dispensing groove so that the glue storage groove can contain the bonding glue overflowing from the glue dispensing groove, and the glue storage groove extends from the glue dispensing groove to the imaging area to increase the bonding area between the optical filter and the lens.

Optionally, the number of the glue storage grooves is multiple, and the glue storage grooves are radially distributed around the circumference of the imaging area.

The effects in the above embodiment are: the glue storage grooves in a plurality of numbers are distributed around the circumference of the imaging area, so that the glue joint stress between the optical filter and the lens is more uniform.

Optionally, the glue storage tank is annular and arranged around the imaging area.

The effects in the above embodiment are: the annular glue storage groove can enable the glue joint area of the optical filter and the lens to be larger, and the connection strength between the optical filter and the lens is enhanced.

Optionally, the glue storage tank comprises a first tank body and a second tank body, wherein the first tank body is located between the second tank body and the glue dispensing tank, and the first tank body and the second tank body are arranged concentrically.

The effects in the above embodiment are: through setting up first cell body and second cell body to be used for abundant holding bonding glue that overflows.

Optionally, the maximum depth of the first and second grooves is greater than or equal to 0.05 mm.

The effects in the above embodiment are: when the maximum depth sizes of the first groove body and the second groove body are both larger than or equal to 0.05mm, the first groove body and the second groove body can have a better effect of accommodating overflowing bonding glue.

Optionally, the cross section of the wall surface of the first groove body on the cutting plane is a first arc line, and the radius of the circle where the first arc line is located is a first radius, wherein the cutting plane passes through the center of the circle and is parallel to the thickness direction of the lens; the section of the wall surface of the second groove body on the section plane is a second arc line, and the radius of the circle where the second arc line is located is a second radius; the first radius and the second radius are both greater than 0.03 millimeters.

The effects in the above embodiment are: when the sizes of the first radius of the first groove body and the second radius of the second groove body are both larger than 0.03mm, the first groove body and the second groove body can have better effects of accommodating overflowing bonding glue.

Optionally, the second radius is greater than the first radius; and/or the maximum depth of the second groove body is greater than the maximum depth of the first groove body.

The effects in the above embodiment are: the second groove body completely contains the bonding glue overflowing from the glue dispensing groove towards the imaging area through the first groove body.

According to a second aspect of the present application, there is provided a lens module, comprising:

the lens cone defines an imaging cavity, comprises a light inlet and an imaging port opposite to the light inlet, and is communicated with the imaging cavity;

the light-transmitting component of any of the above;

the imaging chip is arranged on one side of the image side end surface of the lens;

the lens is arranged in the imaging cavity, and the image side end face of the lens deviates from the light inlet.

The effects in the above embodiment are: the connecting area of the lens is provided with the glue storage groove, and the lens module adopting the lens can obviously improve the product yield and effectively solve the problem of glue flare.

According to a third aspect of the present application, an electronic device is provided, which includes the lens module.

The effects in the above embodiment are: the connecting area department of lens is equipped with the glue storage groove, and the integrated electronic equipment that has the lens module of this lens can show improvement imaging quality to promote user experience.

According to the application, a light transmission assembly comprises a lens, a light filter and adhesive glue. The lens comprises an imaging area and a connecting area at the periphery of the imaging area, and a glue dripping groove is formed at the outer edge of the connecting area. The connecting area is also provided with a glue storage groove, and the glue storage groove can store bonding glue overflowing from the inside of the glue dispensing groove towards the imaging area when glue dispensing operation is carried out on the lens and the optical filter, so that the problem that the bonding glue overflows to the imaging area and the mixed light of the glue can be remarkably solved by arranging the glue storage groove in the connecting area, and the lens is prevented from being polluted to improve the imaging quality of the light-transmitting assembly. And set up a plurality of glue storage tank in order to be used for the storage bonding glue through the outward flange department at the joining region of lens, still can increase the bonding area of light filter and joining region, and then improve the adhesive strength of lens and light filter.

Drawings

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

FIG. 1 is a side cross-sectional view of a light transmission assembly of the related art;

FIG. 2 is a cross-sectional side view of a lens module according to the related art;

FIG. 3 is a cross-sectional side view of a light transmissive assembly according to an embodiment of the present disclosure, wherein the glue storage slot and the glue dispensing slot are penetrated;

FIG. 4 is a partially enlarged schematic side view of the light-transmitting assembly shown in FIG. 3, illustrating a dispensing slot and a glue storage slot disposed in the connection area;

FIG. 5 is a top view of a lens taken along a direction perpendicular to an image-side end of the lens, in which a glue reservoir is shown disposed in a connecting region according to an embodiment of the present application;

FIG. 6 is a partially enlarged schematic view of a top view of the lens shown in FIG. 5, wherein a boundary line formed by the intersection of one side of the side end surface and one side of the upper end surface, the side end surface of the dispensing slot and the upper end surface of the connecting region is shown;

FIG. 7 is a side view of a lens according to one embodiment of the present application;

FIG. 8 is an enlarged partial side view of the lens of FIG. 7 showing the upper end surface of the attachment area and a glue reservoir disposed in the attachment area;

FIG. 9 is a side cross-sectional cut-away view of a lens according to one embodiment of the present application;

FIG. 10 is an enlarged, fragmentary schematic side cross-sectional view of the lens of FIG. 9 showing the bottom and side end surfaces of the dispensing groove, the upper end surface of the attachment area, and a glue reservoir disposed in the attachment area;

FIG. 11 is a cross-sectional side view of a lens module according to an embodiment of the present disclosure, illustrating a stray light reflected by a glue storage surface of a glue storage groove;

fig. 12 is a top view of a lens module according to an embodiment of the present disclosure, viewed along a direction perpendicular to an image-side end surface of a lens toward an imaging chamber, wherein an upper end surface of a connecting region and a glue storage groove are illustrated;

FIG. 13 is a side cross-sectional cut-away view of a light transmission component according to another embodiment of the present application;

fig. 14 is a partially enlarged schematic view of a side cross-sectional view of the light-transmitting member of fig. 13, in which two first troughs and second troughs, which are arc-shaped in cross section, are sequentially arranged at the connection region;

fig. 15 is a top view taken along a direction perpendicular to an image-side end surface of a lens according to another embodiment of the present application, wherein two first grooves and two second grooves disposed in a connecting region are illustrated;

FIG. 16 is a side view of a lens according to another embodiment of the present application;

FIG. 17 is a side cross-sectional cut-away view of a lens according to another embodiment of the present application;

FIG. 18 is an enlarged, partial schematic side cross-sectional view of the lens of FIG. 17 showing the bottom and side end surfaces of the dispensing channel and the first, second and third upper end surfaces of the attachment zone;

FIG. 19 is a cross-sectional side view of a lens module according to another embodiment of the present disclosure, showing the stray light being reflected by the first groove;

fig. 20 is a top view of a lens module according to another embodiment of the present disclosure, as viewed from a direction perpendicular to an image-side end surface of a lens toward an imaging chamber.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Fig. 1-2 show a light-transmitting assembly 10 and a lens module 20 in the related art. The light-transmitting assembly 10 includes a lens 100, a filter 200 and an adhesive 300, wherein the lens 100 includes an image-side end surface 110. The image-side end surface 110 of the lens 100 includes an imaging area 111 and a connecting area 112 disposed at the periphery of the imaging area 111, and a dispensing slot 113 is formed at the outer edge of the connecting area 112. The surface of the filter 200 facing the imaging region 111 abuts against the end surface 1121 of the connection region 112, and the adhesive 300 fills the gap between the dispensing groove 113 and the filter 200. However, when the bonding area 112 of the lens 100 and the optical filter 200 are bonded, since the amount of the adhesive 300 is difficult to control, the adhesive 300 easily flows through the space formed by the end surface 1121 and the optical filter 200 in contact with each other in the direction toward the imaging area 111, and flows into the imaging area 111 of the lens 100, so that the lens 100 is contaminated, and the imaging quality of the light-transmitting assembly 10 is seriously affected. When the lens module 20 in the related art photographs an object, stray light generated by the lens module reflects off the image-side end surface 110 of the lens 100 and the object-side end surface 114 opposite to the image-side end surface 110 and is transmitted out of the lens 100, and a virtual image is generated on the imaging element 120 on one side of the image-side end surface 110, which also seriously affects the imaging quality of the light-transmitting assembly 10.

In the light transmission component 10 provided in this embodiment, the glue storage groove 1121 is disposed at the connection region 112 of the lens 100, and the glue storage groove 1121 is located between the glue dispensing groove 113 and the imaging region 111 for storing the adhesive 300 overflowing from the glue dispensing groove 113 toward the imaging region 111, so as to solve the problem of glue overflow during the glue dispensing operation and improve the imaging quality of the light transmission component 10.

Specifically, as shown in fig. 3 to 12, the present embodiment provides a light-transmitting assembly 10, which includes a lens 100, a filter 200 and an adhesive 300, wherein the lens 100 includes an image-side end surface 110, the image-side end surface 110 includes an imaging area 111 and a connection area 112 located at the periphery of the imaging area 111, the imaging area 111 can transmit light of a subject to form an image on an imaging element, and an adhesive dispensing groove 113 is formed at an outer edge of the connection area 112 in a concave manner along the thickness direction of the lens 100. The outer edge of the surface of the filter 200 facing the image-side end surface 110 of the lens 100 abuts the connection region 112. After the optical filter 200 abuts against the connection region 112, the dispensing slot 113 and the optical filter 200 together define an accommodation space, and the adhesive 300 fills the accommodation space defined by the dispensing slot 113 and the optical filter 200 together; the connection region 112 is further provided with a glue storage groove 1121, and the glue storage groove 1121 is located between the glue dispensing groove 113 and the imaging region 111 and is used for storing the adhesive 300 overflowing from the glue dispensing groove 113 toward the imaging region 111.

Therefore, by disposing the glue storage groove 1121 in the connection region 112 for storing the adhesive 300 overflowing from the glue dispensing groove 113 toward the imaging region 111 during the glue dispensing operation performed on the lens 100 and the filter 200, the problem of the adhesive overflowing to the imaging region 111 can be significantly improved, thereby preventing the lens 100 from being contaminated and improving the imaging quality of the light-transmitting assembly 10.

In order to better contain the adhesive 300, the depth of the adhesive storage groove 1121 is smaller than the depth of the dispensing groove 113 along the thickness direction of the lens 100. It should be noted that the depth dimension of the glue storage groove 1121 is the maximum distance from one point of the glue storage groove 1121 to one point of the surface of the filter 200 facing the imaging region 111, wherein the connection line between the two points is parallel to the thickness direction of the lens 100. The depth dimension of the dispensing groove 113 is the maximum distance between one point of the dispensing groove 113 and one point of the surface of the filter 200 facing the imaging area 111, wherein the line between the two points is parallel to the thickness direction of the lens 100.

The dispensing groove 113 may have any shape, for example, the dispensing groove 113 may have a circular ring shape and is disposed around the outer edge of the connecting region 112 around the periphery of the imaging region 111, and the dispensing groove 113 may also be disposed in an arc shape on the outer edge of the connecting region 112, where the arc dispensing groove 113 is concentric with the lens 100. However, the arc dispensing groove 113 does not completely surround the outer edge of the connection region 112, so that the circular dispensing groove 113 can accommodate more pairs of the bonding glue 300 to form a larger bonding area than the arc dispensing groove 113, and the connection between the optical filter 200 and the lens 100 is firmer.

In this embodiment, the circular dispensing slot 113 and the arc dispensing slot 113 are only used for comparing the adhesive bonding area between the lens 100 and the optical filter 200 when the two dispensing slots 113 are used for dispensing, the specific shape of the dispensing slot 113 is not limited in this embodiment, and all structures having the same function as the dispensing slot 113 of this embodiment are within the protection scope of this embodiment, and thus are not described again.

In the thickness direction of the lens 100, an upper end surface 1123 of the connection region 112 is concavely formed with a glue storage groove 1121, and the glue storage groove 1121 extends along the radial direction of the dispensing groove 113. The glue storage grooves 1121 include a first side surface 11211, a second side surface 11212 and a glue storage surface 11213, the number of the glue storage grooves 1121 may be plural, and each glue storage groove 1121 is radially distributed around the periphery of the imaging region 111. The adjacent glue storage grooves 1121 may be sequentially arranged at a certain distance and arranged at equal intervals in the connection region 112, so that the filter 200 bonded to the lens 100 is uniformly stressed, and the glue storage grooves 1121 may increase the bonding area between the lens 100 and the filter 200. Along a direction perpendicular to the image-side end surface 110, a horizontal axis of a projection formed by each glue storage groove 1121 on the image-side end surface 110 points to a center of the lens 100. Of course, the spacing between the glue storage grooves 1121 may be the same or different, and the technical solutions of the two arrangement modes are within the protection scope of this embodiment.

The dispensing groove 113 includes a bottom surface 1131 and a side end surface 1132, in order to better accommodate the adhesive 300 overflowing during dispensing operation, the side end surface 1132 of the dispensing groove 113 is communicated with the adhesive storage groove 1121, and on a section formed through the center of the lens 100 along the circumferential direction of the lens 100, the section of the adhesive storage groove 1121 may be rectangular, and a through opening is formed on the side end surface 1132, so that the adhesive 300 flows into the adhesive storage groove 1121 through the opening.

The glue storage grooves 1121 may be elongated, and each glue storage groove 1121 extends toward the imaging region 111 from a side end surface 1132, close to the imaging region 111, of the dispensing groove 113. The connection region 112 is further provided with a stopper 114 disposed around the imaging region 111, and the stopper 114 is located between the glue reservoir 1121 and the imaging region 111 for spacing the glue reservoir 1121 from the imaging region 111. The depth dimension of each glue storage groove 1121 along the thickness direction of the lens 100 can be greater than 0.03mm, and the vertical distance from the first side surface 11211 to the second side surface 11212 of each glue storage groove 1121 can be greater than 0.03 mm. Between two adjacent glue storage grooves 1121, the adjacent first side surface 11211 and second side surface 11212 of the first side surface 11211 of one of the glue storage grooves 1121 extends along the length direction to form an extended surface, the extended surface of the first side surface 11211 intersects with the extended surface of the second side surface 11212 of the adjacent glue storage groove 1121 along the length direction to form an extended surface, the axis coincides with the central axis of the lens 100 perpendicular to the imaging area 111, and the included angle between the extended surfaces of the first side surface 11211 and the second side surface 11212 may be 6 °.

The glue storage groove 1121 may have any shape, and the embodiment describes that the glue storage groove 1121 is in a long strip shape only for illustrative description, and the parameters of the depth dimension, the width dimension, the included angle, and the like, which are listed in the embodiment are only experimental data obtained by a large number of experiments of the long strip-shaped glue storage groove 1121. By adopting the experimental data of the present embodiment, the excessive glue and glue-cracking phenomena occurring at more points of the adhesive 300 during the dispensing operation of the lens 100 and the optical filter 200 can be effectively controlled, and the risk of poor appearance of the produced light-transmitting component 10 can be avoided. The above-mentioned problems of glue overflow, glue explosion and poor appearance of the light transmission component 10 can be solved by changing other components of the light transmission component 10 to make the shapes and sizes of the glue storage grooves 1121 and the included angles between the glue storage grooves 1121 be adjusted accordingly, which is different from the above-mentioned experimental data.

And the perpendicular distance from the upper end surface 1123 to the extension surface of the bottom surface 1131 may be less than 0.12 mm. In a direction perpendicular to the image-side end surface 110, one side of the upper end surface 1123 intersects one side of the side end surface 1132 to form a boundary line 11231, and in the direction perpendicular to the image-side end surface 110, the boundary line 11231 forms an orthographic projection on the image-side end surface 110, and a bottom 11311 of the bottom surface 1131, which is away from the side end surface 1132, forms an orthographic projection on the image-side end surface 110, wherein a shortest distance between any one point of the orthographic projection of the boundary line 11231 and one point of the orthographic projection of the bottom 11311 may be less than 0.12 mm.

It should be noted that by defining the above parameters, the glue receiving amount of the glue dispensing groove 113 can be defined, and the size of the glue receiving amount is directly related to the bonding strength between the lens 100 and the filter 200. However, the glue capacity can be changed by changing the sizes of other components of the light-transmitting assembly 10, and the size of the dispensing slot 113 is also adjusted accordingly, that is, the size of the dispensing slot 113 can be different from the data value range. Therefore, the technical solutions having the same structure as the present embodiment to solve the problem of glue capacity are all within the protection scope of the present embodiment.

As can be seen from the above, the plurality of glue storage grooves 1121 are disposed at intervals in the connecting region 112 of the image-side end surface 110 of the lens 100, so as to effectively accommodate the adhesive 300 overflowing from the glue dispensing groove 113, and indirectly increase the bonding area between the connecting region 112 of the image-side end surface 110 and the filter 200, so as to improve the bonding strength between the lens 100 and the filter 200, and improve the positioning accuracy of the light-transmitting assembly 10 when being used in combination with other lens groups.

In practical use, especially in daytime, stray light enters the light transmission assembly 10, and is reflected for the first time at the image-side end surface 110 of the lens 100 to form a first reflected light, and the first reflected light enters the object-side end surface 140 opposite to the image-side end surface 110 to form a second reflected light. The second reflected light penetrates the lens 100 and generates glare or ghost on an imaging element (not shown in the figure) disposed on the image-side end surface 110 side, thereby affecting the imaging quality of the camera.

The glue storage surface 11213 of the glue storage groove 1211 filled with the adhesive 300 of the embodiment may form a mirror surface, and the glue storage surface 11213 may reflect the second reflected light that is reflected for the second time at the object-side end surface 140 of the lens 100, so as to prevent the reflected light from transmitting the lens 100 and generating stray light on the imaging device. Therefore, the glue storage tank 1211 can reduce the probability of occurrence of ghost and flare phenomena on the light transmission assembly 10, thereby improving the final imaging quality of the light transmission assembly 10.

The present embodiment provides another solution to the problem that the imaging is affected by glue overflow and stray light interference during the bonding process between the lens 100 and the optical filter 200. As shown in fig. 13-20, the number of the glue storage tanks may be multiple, each glue storage tank is concentrically arranged, and the diameter of each glue storage tank gradually increases along the direction in which the imaging area 111 points to the glue dispensing tank 113. The connection region 112 is provided with a first groove body 1121 and a second groove body 1122, wherein the first groove body 1121 is located between the second groove body 1122 and the dispensing groove 113, the first groove body 1121 and the second groove body 1122 are concentrically arranged, and the maximum depth of the first groove body 1121 and the maximum depth of the second groove body 1122 are greater than or equal to 0.05 mm. In the present embodiment, two first grooves 1121 and one second groove 1122 are used for description, but the specific number of the first grooves 1121 and the second grooves 1122 is not limited, and a plurality of first grooves 1121 and second grooves 1122 may be used. When the maximum depth of the first groove 1121 and the second groove 1122 is greater than or equal to 0.05mm, the first groove 1121 and the second groove 1122 can better accommodate the overflowing adhesive 300.

The first slot bodies 1121 and the second slot bodies 1122 are both arranged around the imaging area 111 in an annular shape, two first slot bodies 1121 and one second slot body 1122 are sequentially arranged along the direction of the dispensing slot 113 pointing to the imaging area 111, and the first slot bodies 1121 and the second slot bodies 1122 can both be slots with arc-shaped cross sections. The connection region 112 has a first upper end surface 1123, a second upper end surface 1124 and a third upper end surface 1125, the first upper end surface 1123 is adjacent to the side end surface 1132, the second upper end surface 1124 is located between the two first grooves 1121 and is respectively adjacent to one of the arc surfaces of the two first grooves 1121, and the third upper end surface 1125 is located between the second groove 1122 and the first groove 1121 adjacent to the second groove 1122 and is respectively adjacent to one of the arc surfaces of the first groove 1121 and the second groove 1122. The two first grooves 1121 and the second groove 1122 form a projection in a direction perpendicular to the imaging region 111, and the axes corresponding to the circular projections formed by the two first grooves 1121 and the second groove 1122 coincide with the axis of the lens 100.

In this embodiment, the first groove 1121 adjacent to the dispensing groove 113 is used for receiving the adhesive 300 flowing from the dispensing groove 113 toward the imaging region 111 and passing through a space formed by the filter 200 and the first upper end surface 1123 when the lens 100 and the filter 200 are dispensed. The other first groove body 1121 located between the first groove body 1121 and the second groove body 1122 adjacent to the dispensing groove 113 is used for accommodating the adhesive 300 flowing towards the imaging area 111 in the first groove body 1121 adjacent to the dispensing groove 113 and passing through the space formed by the optical filter 200 and the second upper end surface 1124 in an abutting mode. The second groove 1122 is used to accommodate the adhesive 300 flowing toward the imaging region 111 in the first groove 1121 adjacent thereto and passing through the space formed by the optical filter 200 abutting against the third upper end face 1125.

Therefore, in the present embodiment, the adhesive 300 overflowing from the dispensing slot 113 can be effectively accommodated by the structure of sequentially arranging the first and second slot bodies 1121, 1122. In the thickness direction of the lens 100, both the maximum depth of the first groove 1121 and the maximum depth of the second groove 1122 may be greater than or equal to 0.05 mm.

The cross section of the wall surface of the first groove 1121 on the cutting plane is a first arc line, and the radius of the circle where the first arc line is located is a first radius, wherein the cutting plane is parallel to the thickness direction of the lens. The cross section of the wall surface of the second slot body 1122 on the cutting plane is a second arc line, the radius of the circle where the second arc line is located is a second radius, and both the first radius and the second radius are greater than 0.03 mm. By limiting the sizes of the first groove body 1121 and the second groove body 1122, the glue holding amount of the first groove body 1121 and the second groove body 1122 can be indirectly limited, and when the sizes of the first radius of the first groove body 1121 and the second radius of the second groove body 1122 are both larger than 0.03mm, the first groove body 1121 and the second groove body 1122 can have a better effect of accommodating and overflowing the adhesive glue.

In this embodiment, the space defined by the two first slot bodies 1121 respectively disposed between the second slot body 1122 and the dispensing slot 113 and the optical filter 200 is smaller than the space defined by the second slot body 1122 and the optical filter 200, so that after each first slot body 1211 receives a part of the adhesive 300, since the second slot body 1122 has a larger receiving space, the second slot body 1122 can completely receive the overflowed adhesive 300, and the adhesive 300 is prevented from overflowing to the imaging area 111. The glue-containing amount of the first and second grooves 1121, 1122 also directly relates to the bonding strength between the lens 100 and the filter 200.

When the second radius is larger than the first radius and the maximum depth of the second slot body 1122 is larger than the maximum depth of the first slot body 1121, the size of the second slot body 1122 may be larger than the size of the first slot body 1121, so that the second slot body 1122 may accommodate more adhesive 300, thereby ensuring that the second slot body 1122 completely accommodates the adhesive 300 overflowing from the dispensing slot 113 toward the imaging area 111 through the first slot body 1121.

It should be noted that the sizes and the positions of the first and second grooves 1121, 1122 can be flexibly adjusted, and the parameters of the depth of the first and second grooves 1121, 1122 and the radius corresponding to the arc in the arc surface are only experimental data obtained from a large number of experiments of the first and second grooves 1121, 1122 with the arc cross section in this embodiment. The experimental data of the present embodiment can effectively control the problem of glue overflow caused by more glue 300 dots in the dispensing operation of the lens 100 and the filter 200.

Of course, the cross sections of the first and second grooves 1121, 1122 may be grooves with any shape and circular ring shape disposed around the imaging area 111, and the cross sections of the first and second grooves 1121, 1122 are illustrated as arc shapes for illustrative purposes, and all structures with the same groove shapes and arrangement as those of the present embodiment are within the scope of the present embodiment. The arc surface of the first slot 1211 can form a mirror surface for reflecting the reflected light that is reflected for the second time at the object-side end surface 140 of the lens 100, so as to prevent the reflected light from transmitting the lens 100 and generating stray light on the imaging device.

Therefore, the first slot 1211 can reduce the probability of the light-transmitting component 10 generating ghost and flare phenomena, thereby improving the final imaging quality of the light-transmitting component 10, and having better effects of solving the problems of glue overflow and stray light interference. The technical solutions for solving the problems of glue overflow and light interference with the same structure as the present embodiment are within the protection scope of the present embodiment.

The present embodiment further provides a lens module 20, which includes a lens barrel 400, a light-transmitting component 10 and an imaging chip (not shown in the figure). The light transmission component 10 may be a lens 100 or a plurality of lenses 100, wherein the lens 100 may be a concave lens or a convex lens, etc. having a light transmission function. Lens barrel 400 includes an imaging chamber 410, which also has an optical inlet 420, an imaging port 430 opposite optical inlet 420, and a barrel wall 440. The light inlet 420 and the imaging port 430 penetrate through the imaging chamber 410, so that light rays of an object to be photographed can enter from the light inlet 420, pass through the imaging chamber 410, and pass out through the imaging port 430 to reach an imaging chip arranged on one side of the image-side end surface 110 for imaging. The lens 100 is disposed in the imaging chamber 410 and abuts against the cylinder wall 440, a surface of the filter 200 facing the imaging area 111 abuts against the connection area 112 of the lens 100, the filter 200 and the cylinder wall 440 together define a dispensing slot 113, and the dispensing slot 113 is used for storing the adhesive 300, so that the filter 200 is fixed to the lens 100.

An electronic device comprises a lens module 20, and the electronic device comprises the light-transmitting component 10 provided in any one of the above embodiments. The electronic device may be a mobile phone, a digital camera, a tablet computer, or other electronic devices.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the above terms will be understood by those skilled in the art according to the specific situation.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (13)

1. A light transmission assembly, comprising:

the lens comprises an image side end face, the image side end face comprises an imaging area and a connecting area located on the periphery of the imaging area, and a glue dispensing groove is formed in the outer edge of the connecting area;

the optical filter is abutted with the connecting area;

the adhesive glue is filled in a gap between the glue dispensing groove and the optical filter;

the connecting area is further provided with a glue storage groove, the glue storage groove is located between the glue dispensing groove and the imaging area and used for storing the bonding glue overflowing towards the imaging area in the glue dispensing groove.

2. The light transmission assembly of claim 1,

along the thickness direction of the lens, the depth dimension of the glue storage groove is smaller than that of the glue dispensing groove.

3. The light transmission assembly of claim 1,

the glue dispensing groove is in a ring shape and is arranged around the imaging area.

4. The light transmission assembly of claim 3,

the glue storage groove is communicated with the glue dispensing groove, and the glue storage groove extends along the radial direction of the glue dispensing groove.

5. The light transmission assembly of claim 4,

the joining region still is provided with around the barrier part that the formation of image district was arranged, just the barrier part is located glue storage tank with between the formation of image district, in order to be used for the interval glue storage tank with the formation of image district.

6. The light transmission assembly of claim 4,

the glue storage grooves are multiple in number and are radially distributed around the circumference of the imaging area.

7. The light transmission assembly of claim 1,

the glue storage groove is annular and is arranged around the imaging area and communicated with the glue dispensing groove.

8. The light transmission assembly of claim 7,

the glue storage tanks are arranged in a concentric manner, and the diameter of each glue storage tank is gradually increased along the direction of the imaging area pointing to the glue dispensing tank.

9. The light transmission assembly of claim 8,

the glue storage groove comprises a first groove body and a second groove body, wherein the first groove body is positioned between the second groove body and the glue dispensing groove;

the maximum depth sizes of the first groove body and the second groove body are both larger than or equal to 0.05 mm.

10. The light transmission assembly of claim 9,

the section of the wall surface of the first groove body on the section plane is a first arc line, and the radius of a circle where the first arc line is located is a first radius, wherein the section plane passes through the circle center and is parallel to the thickness direction of the lens;

the section of the wall surface of the second groove body on the section plane is a second arc line, and the radius of the circle where the second arc line is located is a second radius;

the first radius and the second radius are both greater than 0.03 millimeters.

11. The light transmission assembly of claim 10,

the second radius is greater than the first radius; and/or

The maximum depth of the second groove body is larger than that of the first groove body.

12. A lens module, comprising:

the lens barrel defines an imaging cavity, the lens barrel comprises a light inlet and an imaging port opposite to the light inlet, and the light inlet and the imaging port are communicated with the imaging cavity;

the light-transmitting component of any one of claims 1-11;

the imaging chip is arranged on one side of the image side end surface of the lens;

the light-transmitting component is arranged in the imaging cavity, and the image side end surface of the lens deviates from the light inlet.

13. An electronic device comprising the lens module of claim 12.

Images