Lens and camera module with lens

Abstract

The lens (100) and the camera module with the lens (100), wherein the lens (100) comprises a first lens unit (10), a second lens unit (20) and a glue structure (30), wherein the first lens unit (10) comprises a glass lens (11) and a lens black object (12), the lens black object (12) is covered on the outer periphery of the glass lens (11), the first lens unit (10) is arranged at the front end of the second lens unit (20) along the optical axis direction, the glue structure (30) comprises a glue layer (31) and a glue fixing unit (32), the glass lens (11) is adhered to the second lens unit (20) by the glue layer (31), the glue fixing unit (32) is located between the first lens unit (10) and the second lens unit (20), so that the glue fixing unit (32) strengthens the bonding strength between the glass lens (11) and the second lens unit (20).

Description

Technical Field

[0001] This invention relates to the field of optical imaging technology, and more particularly to a lens and a camera module with the lens. Background Technology

[0002] With the widespread adoption of mobile electronic devices, the technologies related to camera modules (used to acquire images, such as video or photos) applied to these devices have experienced rapid development and progress. In recent years, technological advancements have accelerated, especially in the electronics field, where development has been astonishing. Competition in the camera module market has intensified, leading to significant advancements in both structure and performance. Both in terms of functionality and size, camera modules are constantly evolving in ways people imagine, becoming highly integrated in function and extremely compact and miniaturized.

[0003] In existing mobile phone camera modules, glass lenses offer better resolution than plastic lenses. Under the same resolution conditions, glass lenses are also shorter, making them the preferred choice for reducing camera module height. However, due to the high melting point of glass, current processes cannot utilize the high-temperature liquid injection molding method. Therefore, high-temperature hot pressing is required. This method necessitates raising the temperature to soften the glass preform, which is typically roughly spherical. During hot pressing, the glass preform must be kept near its heat transfer point (TG), but the pressure cannot be too high, as this can cause it to shatter. The structural areas of the glass lens also require hot pressing, resulting in a small adhesive application area, insufficient adhesive, or a small bonding area between the adhesive and the glass lens. This leads to weak adhesion between the upper and lower glass elements in split-type lenses. Summary of the Invention

[0004] A key advantage of this invention is that it provides a lens and a camera module with the lens, wherein the lens includes a first lens unit and a second lens unit, wherein the first lens unit includes at least one glass lens, which helps to reduce the height of the lens and thus reduce the overall height of the camera module.

[0005] Another advantage of the present invention is that it provides a lens and a camera module with the lens, wherein the lens is made of glass, which helps to improve the resolution of the camera module.

[0006] Another advantage of the present invention is that it provides a lens and a camera module with the lens, wherein the lens further includes at least one adhesive structure, wherein the adhesive structure is formed on the periphery of the glass lens, and the first lens unit and the second lens unit are fixed together by the adhesive structure, thereby improving the stability of the lens.

[0007] Another advantage of the present invention is that it provides a lens and a camera module with the lens, wherein the adhesive structure includes an adhesive layer and at least one adhesive fixing unit, wherein the adhesive layer is formed between the glass lens and the second lens unit, and the adhesive fixing unit is formed on the periphery of the glass lens, thereby increasing the stability of the connection between the glass lens and the second lens unit.

[0008] Another advantage of the present invention is that it provides a lens and a camera module with the lens, wherein the second lens unit is provided with at least one glue groove, wherein the glue fixing unit is formed in the glue groove, and the glue groove prevents glue from overflowing.

[0009] Another advantage of the present invention is that it provides a lens and a camera module with the lens, wherein the first lens unit further includes a lens black object located at the upper end of the glass lens, wherein the lens black object is connected to the second lens unit by the adhesive fixing unit, and the lens black object stabilizes the connection between the glass lens and the second lens unit.

[0010] Other advantages and features of the invention will be fully apparent from the following detailed description and may be achieved by combinations of the means and apparatus specifically pointed out in the appended claims.

[0011] According to one aspect of the present invention, a lens of the present invention, capable of achieving the aforementioned and other objects and advantages, includes:

[0012] A first lens unit, wherein the first lens unit includes a glass lens and a lens dark object, wherein the lens dark object is disposed on the outer periphery of the glass lens;

[0013] A second lens unit, wherein the first lens unit is disposed at the front end of the second lens unit along an optical axis; and

[0014] An adhesive structure is provided, wherein the adhesive structure includes an adhesive layer and an adhesive fixing unit, wherein the glass lens is bonded to the second lens unit by the adhesive layer, and the adhesive fixing unit is located between the first lens unit and the second lens unit, thereby strengthening the bonding strength between the glass lens and the second lens unit.

[0015] According to at least one embodiment of the present invention, the adhesive fixing unit is disposed on the outer peripheral side of the glass lens and the upper end face of the second lens unit, and the glass lens and the second lens unit are bonded together by the adhesive fixing unit.

[0016] According to at least one embodiment of the present invention, the adhesive fixing unit is disposed on the outer peripheral side of the glass lens, the inner side of the lens black object, and the upper end surface of the second lens unit, and the glass lens, the lens black object, and the second lens unit are bonded together by the adhesive fixing unit.

[0017] According to at least one embodiment of the present invention, the adhesive fixing unit is disposed on the lower side of the lens black object and the upper end surface of the second lens unit, and the lens black object and the second lens unit are bonded together by the adhesive fixing unit.

[0018] According to at least one embodiment of the present invention, the adhesive layer and the adhesive fixing unit are formed by curing an adhesive.

[0019] According to at least one embodiment of the present invention, the glass lens includes an imaging portion and a mounting portion extending integrally outward from the imaging portion. The mounting portion of the glass lens has an upper mounting portion surface and a lower mounting portion surface, wherein the adhesive layer is disposed on the lower mounting portion surface of the mounting portion, and wherein the mounting portion of the glass lens further has a mounting portion side surface, wherein the mounting portion side surface is an arcuate surface.

[0020] According to at least one embodiment of the present invention, the second lens unit includes a lens barrel and at least one optical lens disposed on the lens barrel. The lens barrel includes an upper end portion and a lower end portion extending integrally downward from the upper end portion. The upper end portion has an upper end face and a mounting groove. The glass lens of the first lens unit is fixed to the upper end face of the upper end portion of the lens barrel by the adhesive structure, and the lens element is fixed to the mounting groove of the upper end portion of the lens barrel.

[0021] According to at least one embodiment of the present invention, the second lens unit includes a lens barrel and at least one optical lens disposed on the lens barrel. The lens barrel includes an upper end portion and a lower end portion extending integrally downward from the upper end portion. The upper end portion further includes an upper end body and a boss extending upward from the outer periphery of the upper end body. The glass lens, the upper end body of the upper end portion, and the boss together form a glue groove, wherein the adhesive forming the glue fixing unit is applied to the glue groove.

[0022] According to at least one embodiment of the present invention, an adhesive seam is provided between the lens black object and the glass lens, wherein when the lens black object is placed in the adhesive groove, the adhesive forming the adhesive fixing unit is squeezed into the adhesive seam by the lens black object.

[0023] According to at least one embodiment of the present invention, the lens black includes a fixed end and a snap-fit ​​end extending inward from the fixed end. The snap-fit ​​end of the lens black is provided with a snap-fit ​​surface. The fixed end of the lens black is further provided with an inner inclined surface. The inner inclined surface of the fixed end and the outer periphery of the mounting portion side of the mounting portion of the glass lens define the adhesive seam.

[0024] According to at least one embodiment of the present invention, the second lens unit includes a lens barrel and at least one optical lens disposed on the lens barrel. The lens barrel includes an upper end portion and a lower end portion extending integrally downward from the upper end portion. The upper end portion includes an upper end body and a boss extending upward from the upper end body. The boss spacees the upper surface of the upper end body and forms an inner adhesive groove and an outer adhesive groove. The adhesive forming the adhesive layer is applied to the inner adhesive groove, and the adhesive forming the adhesive fixing unit is applied to the outer adhesive groove.

[0025] According to at least one embodiment of the present invention, the glass lens has an optically effective region and an optically ineffective region, the optically ineffective region surrounding the periphery of the optically effective region, wherein the adhesive layer of the adhesive structure is formed in the optically ineffective region of the glass lens, and the ratio of the length of the optically ineffective region of the glass lens to the diameter of the glass lens is less than or equal to 0.07.

[0026] According to another aspect of the present invention, the present invention further provides a camera module, comprising:

[0027] A photosensitive element; and

[0028] A lens, wherein the lens is held in a light-sensitive path of the photosensitive element, wherein the lens comprises:

[0029] A first lens unit, wherein the first lens unit includes a glass lens and a lens dark object, wherein the lens dark object is disposed on the outer periphery of the glass lens;

[0030] A second lens unit, wherein the first lens unit is disposed at the front end of the second lens unit along an optical axis; and

[0031] An adhesive structure is provided, wherein the adhesive structure includes an adhesive layer and an adhesive fixing unit, wherein the glass lens is bonded to the second lens unit by the adhesive layer, and the adhesive fixing unit is located between the first lens unit and the second lens unit, thereby strengthening the bonding strength between the glass lens and the second lens unit.

[0032] The further objects and advantages of the invention will become fully apparent from the following description and accompanying drawings.

[0033] These and other objects, features and advantages of the present invention will be fully realized through the following detailed description, drawings and claims. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a camera module according to a first preferred embodiment of the present invention.

[0035] Figure 2 This is a schematic diagram of the structure of a camera module according to a second preferred embodiment of the present invention.

[0036] Figure 3A and Figure 3B This is a schematic diagram of a gel fixing unit formed by the camera module according to the second preferred embodiment of the present invention.

[0037] Figure 4 This is a schematic diagram of the structure of a camera module according to a third preferred embodiment of the present invention. Detailed Implementation

[0038] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0039] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention.

[0040] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0041] Referring to the accompanying drawings of this invention Figure 1As shown, a lens and a camera module with the lens according to a first preferred embodiment of the present invention will be described in the following description. The lens includes a first lens unit 10, a second lens unit 20, and at least one adhesive structure 30 for fixing the first lens unit 10 and the second lens unit 20. In short, the lens has a split structure design, wherein the first lens unit 10 is fixed to the second lens unit 20 by the adhesive structure 30. The first lens unit 10 includes at least one glass lens 11 and a lens element 12, wherein the lens element 12 is fixed to the upper end of the second lens unit 20, and the lens element 12 holds the glass lens 11 to the second lens unit 20.

[0042] It is worth mentioning that, in this preferred embodiment of the present invention, the glass lens 11 of the first lens unit 10 is a glass product. The glass lens 11 of the first lens unit 10 is fixed to the upper end of the second lens assembly 20 by the adhesive structure 30.

[0043] In detail, the glass lens 11 includes an imaging portion 111 and a mounting portion 112 integrally extending outward from the imaging portion 111. The effective imaging light of the camera module passes through the imaging portion 111 of the glass lens 11, and the mounting portion 112 of the glass lens 11 is fixed to the second lens unit 20 by the adhesive structure 30. The mounting portion 112 of the glass lens 11 has an upper mounting surface 1121 and a lower mounting surface 1122, wherein the upper mounting surface 1121 faces the object side of the camera module, and the lower mounting surface 1122 faces the image side of the camera module. The mounting portion 112 of the glass lens 11 further has a mounting side surface 1123, wherein the mounting side surface 1123 is formed on the outer periphery of the mounting portion 112.

[0044] It is worth mentioning that, under the same refractive index conditions, because the thickness of glass lenses is less than that of resin lenses, using glass lenses can better reduce the height of the camera module. At the same time, compared to resin lenses, pure glass lenses are less affected by temperature-induced material deformation and are more stable, resulting in better optical resolution.

[0045] The adhesive structure 30 includes at least one adhesive layer 31 and at least one adhesive fixing unit 32. The adhesive layer 31 is formed between the mounting portion 112 of the glass lens 11 and the second lens unit 20. The adhesive fixing unit 32 is formed on the periphery of the mounting portion side surface 1123 of the glass lens 11 and above the second lens unit 20, thereby fixing the glass lens 11 to the second lens unit 20 using the adhesive layer 31 and the adhesive fixing unit 32. Optionally, in this preferred embodiment of the invention, the adhesive fixing unit 32 is disposed on the periphery of the mounting portion side surface 1123 of the glass lens 11 and above the second lens unit 20. It is understood that the lower side 1122 of the mounting portion of the glass lens 11 is fixed to the upper surface of the second lens unit 20 by the adhesive layer 31 of the adhesive structure 30, and the side 123 of the mounting portion of the glass lens 11 is fixed to the upper surface of the second lens unit 20 located outside the glass lens 11 by the adhesive fixing unit 32 of the adhesive structure 30. It is understood that the adhesive fixing unit 32 strengthens the fixed connection between the glass lens 11 and the second lens unit 20, making the glass lens 11 more stably fixed to the second lens unit 20.

[0046] Preferably, in this preferred embodiment of the invention, the adhesive layer 31 and the adhesive fixing unit 32 of the adhesive structure 30 are formed by curing an adhesive (such as glue), wherein the adhesive forming the adhesive layer 31 is applied to the lower surface 1122 of the mounting portion 112 and / or to the position of the second lens unit 20 corresponding to the lower surface 1122 of the mounting portion 112. The adhesive layer 31 is formed between the mounting portion 112 and the second lens unit 20 of the glass lens 11 after the adhesive has cured. The adhesive forming the adhesive fixing unit 32 is applied to the periphery of the side surface 1123 of the mounting portion of the glass lens 11 and above the second lens unit 20, and the adhesive fixing unit 32 is formed after the adhesive has cured. Optionally, in other alternative embodiments of the invention, the adhesive layer 31 and the adhesive fixing unit 32 are formed by other types of adhesives, such as solid adhesives, paste adhesives, and double-sided adhesives.

[0047] It is worth mentioning that, in this preferred embodiment of the present invention, the adhesive fixing unit 32 of the adhesive structure 30 is formed on or disposed on the mounting side 1123 of the glass lens 11 and the upper surface of the second lens unit 20, and the adhesive fixing unit 32 fixes the glass lens 11 to the second lens unit 20. In other words, the adhesive fixing unit 32 is adhered to both the mounting side 1123 of the glass lens 11 and the upper surface of the second lens unit 20, thus stabilizing the fixed connection between the glass lens 11 and the second lens unit 20.

[0048] The adhesive forming the adhesive fixing unit 32 is applied to the mounting side 1123 of the glass lens 11, and the adhesive slides down onto the upper surface of the second lens unit 20 under its own gravity. After the adhesive cures, the adhesive fixing unit 32 is formed on the mounting side 1123 of the glass lens 11 and the upper surface of the second lens unit 20. It is worth mentioning that, in this preferred embodiment of the present invention, the shape and coverage of the formed adhesive fixing unit 32 are controlled by controlling the amount of adhesive used to form the adhesive fixing unit 32. In other words, in this preferred embodiment of the present invention, the adhesive fixing unit 32 does not have a specific shape and thickness, and the thickness, shape, range, etc. of the adhesive fixing unit 32 are controlled by the amount of adhesive applied. Preferably, after the adhesive fixing unit 32 is cured, it forms an inclined surface, wherein the inclined surface extends from the upper end of the mounting side 1123 of the glass lens 11 to the outer side of the upper end surface of the second lens unit 20.

[0049] As an example, in this preferred embodiment of the invention, the coating width of the adhesive layer 31 is 0.32 mm, and the coating width of the adhesive fixing unit 32 is 0.8 mm. It is understood that the width and thickness of the adhesive structure 30, etc., in this preferred embodiment of the invention are merely examples and not limitations.

[0050] Preferably, the mounting side 1123 of the glass lens 11 is an arc-shaped surface, which helps to increase the bonding area between the adhesive fixing unit 32 and the glass lens 11, thereby increasing the bonding strength. More preferably, in this preferred embodiment of the present invention, the mounting side 1123 of the glass lens 11 has a convex structure. Optionally, in this preferred embodiment of the present invention, the mounting side 1123 of the glass lens 11 is a rough surface, that is, the mounting side 1123 of the glass lens 11 is roughened, which helps to improve the bonding strength between the adhesive fixing unit 32 and the glass lens 11 and prevent the adhesive from detaching.

[0051] The second lens unit 20 includes a lens barrel 21 and at least one optical lens 22 disposed on the lens barrel 21, wherein the lens barrel 21 has a lens cavity 210, and the at least one optical lens 22 is fixed to the lens cavity 210 of the lens barrel 21. The lens barrel 21 includes an upper end portion 211 and a lower end portion 212 extending integrally downward from the upper end portion 211, wherein the first lens unit 10 is fixed to the upper end portion 211 of the lens barrel of the second lens unit 20. It is worth mentioning that, in this preferred embodiment of the present invention, the optical lens 22 of the second lens unit 20 is a resin lens.

[0052] Specifically, the upper end portion 211 of the lens barrel has an upper end face 2111 and a mounting groove 2112. The glass lens 11 of the first lens unit 10 is fixed to the upper end face 2111 of the lens barrel by the adhesive structure 30, and the lens element 12 is fixed to the mounting groove 2112 of the upper end portion 211. It is worth noting that the mounting groove 2112 is a stepped structure formed on the periphery of the upper end face 2111 and positioned lower than the upper end face 2111. The lens element 12 is fixed to the mounting groove 2112 of the upper end portion 211, and the lens element 12 presses the glass lens 11 against the upper end of the second lens unit 20.

[0053] Preferably, in this preferred embodiment of the present invention, the glass lens 11 is a bare lens, wherein the imaging portion 111 of the glass lens 11 protrudes from the mounting portion 112 toward the object side, that is, the imaging portion 111 of the glass lens 11 is a protruding structure located at the center of the glass lens 11. The glass lens 11 has an optically effective area and an optically ineffective area, the optically ineffective area surrounding the periphery of the optically effective area, wherein the adhesive layer 31 of the adhesive structure 30 is formed in the optically ineffective area of ​​the glass lens 11. It is understood that the optically effective area of ​​the glass lens 11 can be used to collect light and allow light to pass through, and the optically ineffective area of ​​the glass lens 11 corresponds to the adhesive layer 31 of the adhesive structure 30. It is worth mentioning that the optically effective area is located in the imaging portion 111 of the glass lens 11, and the optically ineffective area is located in the mounting portion 112 of the glass lens 11.

[0054] The imaging portion 111 of the glass lens 11 has an object-side outer surface 1111 and an image-side inner surface 1112, wherein the object-side outer surface 1111 faces the object side, and the image-side inner surface faces the image side. The object-side outer surface 1111 extends towards the object side relative to the image-side inner surface 1112, forming a protruding structure of the imaging portion 111. Notably, the imaging portion 111 is approximately arc-shaped or barrel-shaped, with an arc-shaped top. This arc shape is used to converge light, increasing the amount of light entering the sensor so that the light passes through and reaches the chip for imaging. The image-side inner surface 1112 of the imaging portion 111 extends towards the object side to form a recess, which is arc-shaped and used to diverge light.

[0055] The lens dark element 12 is used to protect the glass lens 11. The lens dark element 12 has a light entrance 121 through which external light enters the glass lens 11. The lens dark element 12 is further provided with a light-concentrating surface 122, which extends obliquely outward from the light entrance 121 to converge external light.

[0056] It is worth mentioning that, under the same refractive index conditions, the thickness of a glass lens is less than that of a resin lens, and using a glass lens can better reduce the height of the camera module. Compared to resin lenses, pure glass lenses are less affected by temperature-induced material deformation and are more stable, resulting in better optical resolution. However, due to the high melting point of glass lenses, existing processes cannot achieve the same high-temperature liquid flow into a mold as injection molding. Therefore, the glass lens 11 of this invention is formed by high-temperature hot pressing using a mold. High-temperature hot pressing requires raising the temperature to soften the glass preform forming the glass lens 11. Since the glass preform is spherical, it needs to be kept near its TG point during hot pressing. Excessive pressure during hot pressing can cause the glass preform to shatter. Therefore, the pressure during hot pressing of the glass lens 11 is low, resulting in a smaller mounting portion 112 of the glass lens 11.

[0057] As an example, in this preferred embodiment of the present invention, the optically effective region diameter of the glass lens 11 is 3.48 mm, the optically ineffective region width of the glass lens 11 is 0.32 mm, and the diameter of the glass lens 11 is 4.6 mm. It is worth noting that in this preferred embodiment of the present invention, the specific structure and dimensions of the glass lens 11 are merely exemplary and not limiting. Depending on the requirements of lens resolution and other optical imaging performance, the glass lens 11 can also be implemented in other shapes or sizes. Preferably, in this preferred embodiment of the present invention, the ratio of the length of the optically ineffective region of the glass lens 11 to the diameter of the glass lens 11 is not greater than 0.07.

[0058] like Figure 1 As shown, the camera module includes a lens 100 and a photosensitive component 200, wherein the lens 100 is held in a photosensitive path of the photosensitive component 200. The lens 100 is attached to the photosensitive component 200 by an adhesive to be held in the photosensitive path of the photosensitive component 200. The photosensitive component 200 may also include a molded body that covers an electronic component (MOB); the molded body covers a portion of the photosensitive area (MOC) of a photosensitive chip. The lens 100 includes a lens carrier and an optical lens, wherein the lens carrier is mounted on the photosensitive component 200 (e.g., the lens carrier is attached to the photosensitive component by an adhesive), and the optical lens is carried within the lens carrier. It is understood that the optical lens is the lens in the first preferred embodiment described above. The lens includes a first lens unit 10, a second lens unit 20, and the adhesive structure 30 for fixing the first lens unit 10 to the second lens unit 20; therefore, the specific structure of the optical lens will not be described in detail here.

[0059] The lens carrier in the camera module can be implemented as a lens support, that is, the camera module is implemented as a fixed-focus camera module, and the relative positional relationship between the optical lens and the photosensitive component 200 remains constant. In other examples of this application, the camera module can also be implemented as other types of camera modules, which are not limited here. For example, the camera module can be implemented as a dynamic-focus camera module, that is, the lens carrier is implemented as a driving element, which can carry and drive the optical lens to move along the photosensitive path to change the relative positional relationship between the optical lens and the photosensitive component 200. As another example, the camera module can also be implemented as an image-stabilized camera module, that is, the lens carrier is implemented as an image-stabilizing motor to achieve image stabilization. As yet another example, the camera module can also include components such as prisms to form a periscope camera module. The photosensitive component according to an embodiment of this application includes a circuit board assembly and a photosensitive chip electrically connected to the circuit board assembly, wherein the photosensitive chip is the photosensitive part of the photosensitive component, used to receive imaging light from the outside and perform imaging.

[0060] like Figures 2 to 3B As shown, a camera module and a lens of the camera module according to a second preferred embodiment of the present invention will be described in the following description. The lens of the camera module includes a first lens unit 10, a second lens unit 20, and at least one adhesive structure 30 for fixing the first lens unit 10 and the second lens unit 20. In short, the lens has a split structure design, wherein the first lens unit 10 is fixed to the second lens unit 20 by the adhesive structure 30. The first lens unit 10 includes at least one glass lens 11 and a lens element 12, wherein the lens element 12 is fixed to the upper end of the second lens unit 20, and the lens element 12 holds the glass lens 11 to the second lens unit 20.

[0061] It is worth mentioning that, in this preferred embodiment of the present invention, the specific structure of the glass lens 11 of the first lens unit 10 is the same as that of the first preferred embodiment described above. The difference lies in the adhesive structure 30 and the second lens unit 20. The adhesive structure 30 includes an adhesive layer 31 and an adhesive fixing unit 32. The adhesive layer 31 is formed on the mounting portion 112 of the glass lens 11 and the upper end of the second lens unit 20. The adhesive fixing unit 32 is formed on the outer periphery of the side surface 1123 of the mounting portion of the glass lens 11, and the glass lens 11, the lens black object 12, and the second lens unit 20 are fixedly connected by the adhesive fixing unit 32. In other words, the adhesive fixing unit 32 is formed between the glass lens 11, the lens black object 12, and the second lens unit 20, thereby fixing the glass lens 11, the lens black object 12, and the second lens unit 20 together as a whole.

[0062] Specifically, the second lens unit 20 includes a lens barrel 21 and at least one optical lens 22 disposed on the lens barrel 21. The lens barrel 21 includes an upper end portion 211 and a lower end portion 212 extending downward integrally from the upper end portion 211. The first lens unit 10 is fixed to the upper end portion 211 of the lens barrel of the second lens unit 20 by the adhesive structure 30. The upper end portion 211 includes an upper end body 2111 and a boss 2112 extending upward from the outer periphery of the upper end body 2111. The glass lens 11, the upper end body 2111 of the upper end portion 211, and the boss 2112 together form an adhesive groove 2110. The adhesive forming the adhesive fixing unit 32 is applied to the adhesive groove 2110, and the adhesive fixing unit 32 is formed in the adhesive groove 2110 to connect the glass lens 11, the lens sprue 12, and the second lens unit 20 into one unit. Understandably, the adhesive is applied to the adhesive groove 2110 so that the boss 2112 supports the lens black object 12 and prevents the adhesive from flowing out.

[0063] The lens black 12 of the first lens unit 10 is fixed to the adhesive groove 2110 by the adhesive fixing unit 32 of the adhesive structure 30, and the lens black 12 is fixedly connected to the glass lens 11 and the lens barrel 21 of the second lens unit 20 through the adhesive fixing unit 32.

[0064] It is worth mentioning that the adhesive forming the colloid fixing unit 32 is applied in the adhesive groove 2110. When the lens black object 12 of the first lens unit 10 is placed in the adhesive groove 2110, the lens black object 12 squeezes the adhesive so that the adhesive is applied to the outer periphery of the mounting side 1123 of the glass lens 11.

[0065] A sealant 1210 is provided between the lens element 12 and the glass lens 11. When the lens element 12 is placed in the sealant groove 2110, the adhesive forming the adhesive fixing unit 32 is squeezed into the sealant 1210 by the lens element. The adhesive is cured in the sealant 1210 between the lens element 12 and the glass lens 11, thereby forming the adhesive fixing unit 32. Preferably, in this preferred embodiment of the invention, the adhesive is squeezed by the lens element 12 and fills the sealant 1210 with the adhesive.

[0066] The lens element 12 includes a fixed end 121 and a clamping end 122 extending inward from the fixed end 121. The fixed end 121 of the lens element 12 is fixed to the adhesive groove 2110 by the adhesive fixing unit 32, and the clamping end 122 clamps onto the upper end of the glass lens 11 to protect the glass lens 11 and prevent it from falling off. The clamping end 122 of the lens element 12 has a clamping surface 1221, which is tightly fastened to the glass lens 11 during fixing. The fixed end 121 of the lens element 12 further has an inner bevel 1211. It is worth mentioning that the inner bevel 1211 of the fixed end 121 of the lens element 12 and the outer periphery of the mounting portion side 1123 of the mounting portion 112 of the glass lens 11 define the adhesive seam 1210. In other words, when the lens element 12 is placed in the adhesive groove 2110, the adhesive forming the adhesive fixing unit 32 is squeezed into the adhesive seam 1210, so that the adhesive fixing unit 32 is formed in the adhesive seam 1210, and the lens element 12 and the glass lens 11 are fixedly connected by the adhesive fixing unit 32. Preferably, the inner inclined surface 1211 extends outward and downward from the inner side of the clamping surface 1221 to the bottom of the fixing end 121.

[0067] It is understood that the bottom of the fixed end 121 of the lens black 12 is fixedly connected to the upper end 211 of the lens barrel 21 by the adhesive fixing end unit 32. Therefore, the adhesive fixing unit 32 can also fix the lens black 12 to the lens barrel 21 of the second lens unit 20, increasing the connection strength between the first lens unit 10 and the second lens unit 20.

[0068] As an example, in this preferred embodiment of the invention, the width of the adhesive layer 31 of the adhesive structure 30 is 0.32 mm, and the width of the adhesive fixing unit 32 is 0.87 mm. The width of the adhesive seam 1210 between the mounting side 1123 of the mounting portion 112 of the glass lens 11 and the lens diffuser 12 is 0.15 mm. The thickness ratio of the adhesive fixing unit 32 between the glass lens 11 and the lens diffuser 12 to the thickness ratio of the adhesive fixing unit 32 between the lens diffuser 12 and the lens barrel 21 is 10:1. It is understood that in this preferred embodiment of the invention, the width and thickness of the adhesive structure 30 are merely exemplary and not limiting.

[0069] like Figure 4 As shown, a camera module and a lens of the camera module according to a third preferred embodiment of the present invention will be described in the following description. The lens of the camera module includes a first lens unit 10, a second lens unit 20, and at least one adhesive structure 30 for fixing the first lens unit 10 and the second lens unit 20. In short, the lens has a split structure design, wherein the first lens unit 10 is fixed to the second lens unit 20 by the adhesive structure 30. The first lens unit 10 includes at least one glass lens 11 and a lens element 12, wherein the lens element 12 is fixed to the upper end of the second lens unit 20, and the lens element 12 holds the glass lens 11 to the second lens unit 20.

[0070] It is worth mentioning that, in this preferred embodiment of the present invention, the specific structure of the glass lens 11 of the first lens unit 10 is the same as that of the first preferred embodiment described above. The difference lies in the adhesive structure 30 and the second lens unit 20. The adhesive structure 30 includes an adhesive layer 31 and an adhesive fixing unit 32. The adhesive layer 31 is formed on the mounting portion 112 of the glass lens 11 and the upper end of the second lens unit 20. The adhesive fixing unit 32 is formed between the lens sprue 12 and the second lens unit 20, and the lens sprue 12 and the second lens unit 20 are fixedly connected by the adhesive fixing unit 32. Unlike the first and second preferred embodiments described above, the adhesive fixing unit 32 is used to fixally connect the lens sprue 12 and the second lens unit 20, thereby enhancing the connection between the glass lens 11 and the second lens unit 20 through the lens sprue 12.

[0071] In detail, the second lens unit 20 includes a lens barrel 21 and at least one optical lens 22 disposed on the lens barrel 21. The lens barrel 21 includes an upper end portion 211 and a lower end portion 212 integrally extending downward from the upper end portion 211. The first lens unit 10 is fixed to the upper end portion 211 of the lens barrel of the second lens unit 20 by the adhesive structure 30. The upper end portion 211 includes an upper end body 2111 and an upwardly extending boss 2112 from the upper end body 2111. The boss 2112 spaces the surface of the upper end body 2111 and forms an inner adhesive groove 2113 and an outer adhesive groove 2114. The adhesive forming the adhesive layer 31 is applied to the inner adhesive groove 2113, and the adhesive forming the adhesive fixing unit 32 is applied to the outer adhesive groove 2114. In other words, the adhesive layer 31 is formed in the inner adhesive groove 2113, and the adhesive fixing unit 32 is formed in the outer adhesive groove 2114. The glass lens 11 of the first lens unit 10 is fixed to the inner adhesive groove 2113 of the lens barrel 21 by the adhesive layer 31, and the lens black object 12 is fixed to the outer adhesive groove 2114 of the lens barrel 21 by the adhesive fixing unit 32.

[0072] It is worth mentioning that the protrusion 2112 of the lens barrel 21 restricts the movement of the glass lens 11 and prevents the adhesive forming the adhesive layer 31 from overflowing from the inner adhesive groove 2113. When the glass lens 11 presses the adhesive into the inner adhesive groove 2113, the adhesive can overflow upwards within the inner adhesive groove 2113, and the adhesive is applied to the mounting side 1123 of the mounting portion 112 of the glass lens 11, which helps to increase the bonding strength. As an example, in this preferred embodiment of the present invention, the width of the adhesive layer 31 of the adhesive structure 30 is 0.44 mm, and the width of the adhesive fixing unit 32 is 0.87 mm.

[0073] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and any variations or modifications may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A lens, characterized in that, include: A first lens unit, wherein the first lens unit includes a glass lens and a lens dark object, wherein the lens dark object is disposed on the outer periphery of the glass lens; A second lens unit, wherein the first lens unit is disposed at the front end of the second lens unit along an optical axis; as well as An adhesive structure is provided, wherein the adhesive structure includes an adhesive layer and an adhesive fixing unit, wherein the glass lens is bonded to the second lens unit by the adhesive layer, and the adhesive fixing unit is located between the first lens unit and the second lens unit, thereby strengthening the bonding strength between the glass lens and the second lens unit. The adhesive fixing unit is disposed on the lower side of the lens black object and the upper end face of the second lens unit, and the lens black object and the second lens unit are bonded together by the adhesive fixing unit; The second lens unit includes a lens barrel and at least one optical lens disposed on the lens barrel. The lens barrel includes an upper end portion and a lower end portion extending integrally downward from the upper end portion. The upper end portion includes an upper end body and an upwardly extending boss. The boss separates the upper surface of the upper end body and forms an inner adhesive groove and an outer adhesive groove. The adhesive forming the adhesive layer is applied to the inner adhesive groove, and the adhesive forming the adhesive fixing unit is applied to the outer adhesive groove. The glass lens includes an imaging portion and a mounting portion extending integrally outward from the imaging portion. The mounting portion of the glass lens has an upper mounting portion surface and a lower mounting portion surface, wherein the adhesive layer is disposed on the lower mounting portion surface of the mounting portion, and wherein the mounting portion of the glass lens further has a mounting portion side surface. The protrusion of the lens barrel restricts the movement of the glass lens and prevents the adhesive forming the adhesive layer from overflowing from the inner adhesive groove; When the adhesive forming the adhesive layer is pressed into the inner adhesive groove of the glass lens, the adhesive forming the adhesive layer overflows upward in the inner adhesive groove, and the adhesive forming the adhesive layer is applied to the side of the mounting portion of the glass lens, which helps to increase the bonding strength.

2. The lens according to claim 1, wherein the adhesive layer is formed by curing the adhesive of the adhesive layer, and the colloid fixing unit is formed by curing the adhesive of the colloid fixing unit.

3. The lens according to claim 1, wherein the side of the mounting portion is an arc-shaped surface.

4. The lens according to any one of claims 1 to 3, wherein the glass lens has an optically effective area and an optically ineffective area, the optically ineffective area surrounding the periphery of the optically effective area, the optically effective area being located in the imaging portion of the glass lens, the optically ineffective area being located in the mounting portion of the glass lens, wherein the adhesive layer of the adhesive structure is formed in the optically ineffective area of ​​the glass lens, and the ratio of the length of the optically ineffective area of ​​the glass lens to the diameter of the glass lens is less than or equal to 0.

07.

5. A camera module, characterized in that, include: One photosensitive component; and A lens, wherein the lens is held in a light-sensitive path of the photosensitive element, wherein the lens comprises: A first lens unit, wherein the first lens unit includes a glass lens and a lens dark object, wherein the lens dark object is disposed on the outer periphery of the glass lens; A second lens unit, wherein the first lens unit is disposed at the front end of the second lens unit along an optical axis; as well as An adhesive structure is provided, wherein the adhesive structure includes an adhesive layer and an adhesive fixing unit, wherein the glass lens is bonded to the second lens unit by the adhesive layer, and the adhesive fixing unit is located between the first lens unit and the second lens unit, thereby strengthening the bonding strength between the glass lens and the second lens unit. The adhesive fixing unit is disposed on the lower side of the lens black object and the upper end face of the second lens unit, and the lens black object and the second lens unit are bonded together by the adhesive fixing unit; The second lens unit includes a lens barrel and at least one optical lens disposed on the lens barrel. The lens barrel includes an upper end portion and a lower end portion extending integrally downward from the upper end portion. The upper end portion includes an upper end body and an upwardly extending boss. The boss separates the upper surface of the upper end body and forms an inner adhesive groove and an outer adhesive groove. The adhesive forming the adhesive layer is applied to the inner adhesive groove, and the adhesive forming the adhesive fixing unit is applied to the outer adhesive groove. The glass lens includes an imaging portion and a mounting portion extending integrally outward from the imaging portion. The mounting portion of the glass lens has an upper mounting portion surface and a lower mounting portion surface, wherein the adhesive layer is disposed on the lower mounting portion surface of the mounting portion, and wherein the mounting portion of the glass lens further has a mounting portion side surface. The protrusion of the lens barrel restricts the movement of the glass lens and prevents the adhesive forming the adhesive layer from overflowing from the inner adhesive groove; When the adhesive forming the adhesive layer is pressed into the inner adhesive groove of the glass lens, the adhesive forming the adhesive layer overflows upward in the inner adhesive groove, and the adhesive forming the adhesive layer is applied to the side of the mounting portion of the glass lens, which helps to increase the bonding strength.

6. The camera module according to claim 5, wherein the adhesive layer is formed by curing the adhesive of the adhesive layer, and the colloid fixing unit is formed by curing the adhesive of the colloid fixing unit.

7. The camera module according to claim 5, wherein the side of the mounting portion is an arc-shaped surface.

8. The camera module according to any one of claims 5 to 7, wherein the glass lens has an optically effective area and an optically ineffective area, the optically ineffective area surrounding the periphery of the optically effective area, the optically effective area being located in the imaging portion of the glass lens, the optically ineffective area being located in the mounting portion of the glass lens, wherein the adhesive layer of the adhesive structure is formed in the optically ineffective area of ​​the glass lens, and the ratio of the length of the optically ineffective area of ​​the glass lens to the diameter of the glass lens is less than or equal to 0.07.

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