CN214669802U - Imaging lens - Google Patents

Abstract

The utility model provides an imaging lens. The imaging lens includes: a lens barrel; the lens comprises a plurality of lenses which are arranged in the lens barrel at intervals along the axial direction of the lens barrel; the pressing ring is provided with an inserting part, is arranged on the object side end face or the image side end face of the lens barrel through the inserting part, and is abutted against the lens positioned at the end part in the plurality of lenses. The utility model provides an imaging lens among the prior art have the poor problem of structural stability.

Description

Imaging lens

Technical Field

The utility model relates to an optical imaging equipment technical field particularly, relates to an imaging lens.

Background

With the wide application of various electronic products in life and work, electronic devices such as mobile phones and tablet computers are developed towards portability, function integration and application scene diversification. Some photo fans or photo practitioners often need to take photos in some specific scenes (such as rainy days or in water), which is a great test for the waterproof performance of electronic devices.

An imaging lens of an electronic product generally includes a lens barrel and an optical assembly accommodated in the lens barrel, where the optical assembly generally includes a lens, a pressing ring, and the like. The pressing ring is generally covered with a layer of curing glue to connect and fix the pressing ring and the inner cylinder wall of the lens cone, so that the pressing ring can fix the lens and can increase the sealing performance of the imaging lens. However, the arrangement makes the pressing ring position often float, and the glue flare and the glue precipitate to the lens, which greatly affects the structural stability of the imaging lens and further affects the performance and imaging quality of the imaging lens.

That is, the imaging lens in the related art has a problem of poor structural stability.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an imaging lens system to solve the problem of poor structural stability of the imaging lens system in the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided an imaging lens including: a lens barrel; the lens comprises a plurality of lenses which are arranged in the lens barrel at intervals along the axial direction of the lens barrel; the pressing ring is provided with an inserting part, is arranged on the object side end face or the image side end face of the lens barrel through the inserting part, and is abutted against the lens positioned at the end part in the plurality of lenses.

Furthermore, when the insertion part is an insertion projection, the lens barrel is provided with an insertion groove matched with the insertion projection; when the inserting part is an inserting groove, the lens cone is provided with an inserting bulge matched with the inserting groove.

Further, the insertion protrusion extends in the axial direction of the pressing ring.

Furthermore, the insertion part is arranged in parallel with the outer ring surface of the pressing ring; the inserting part is positioned between the outer ring surface and the inner ring surface of the pressing ring and is arranged at intervals with the outer ring surface.

Furthermore, the insertion parts are continuously arranged along the circumferential direction of the pressing ring; or the inserting parts are multiple and are arranged at intervals along the circumferential direction of the pressing ring.

Further, the length d1 of the insertion groove in the axial direction of the lens barrel satisfies: d1 is more than or equal to 0.1mm and less than or equal to 2.5 mm; and/or the length d2 of the insertion projection in the axial direction of the lens barrel satisfies: d2 is not less than 0.1mm and not more than 2.5 mm.

Further, the depth w1 of the insertion groove in the radial direction of the lens barrel satisfies: w1 is more than or equal to 0.1mm and less than or equal to 3.5 mm; and/or the width w2 of the insertion projection in the radial direction of the lens barrel satisfies: w2 is more than or equal to 0.1mm and less than or equal to 3.5 mm.

Furthermore, curing glue is arranged between the insertion groove and the insertion protrusion.

Furthermore, a lens located at an image side end of the lens barrel among the plurality of lenses is an image side lens, and the pressing ring is arranged on the image side end face of the lens barrel and is abutted against the image side lens.

Further, the thickness of the lens barrel is more than or equal to 0.15mm and less than or equal to 5 mm; and/or the axial length H2 of the pressing ring is greater than or equal to 0.2 mm and less than or equal to 3 mm.

By applying the technical scheme of the utility model, the imaging lens comprises a plurality of lens barrels, a plurality of lenses and a pressing ring, wherein the plurality of lenses are arranged in the lens barrels at intervals along the axial direction of the lens barrels; the pressing ring is provided with an inserting part, is arranged on the object side end face or the image side end face of the lens barrel through the inserting part, and is abutted against the lens positioned at the end part in the plurality of lenses.

The clamping ring is arranged on the object side end face or the image side end face of the lens barrel through the inserting part, and is fixedly connected with the lens barrel through the inserting part, so that the assembling strength of the clamping ring and the lens barrel is favorably ensured, the risk that the clamping ring and the lens barrel shake or break away from each other in the working process is avoided, the assembling stability of the clamping ring and the lens barrel is ensured, and the use reliability and the working stability of the imaging lens are ensured. Meanwhile, the pressing ring is not arranged inside the lens barrel, so that the condition that the outer ring surface of the pressing ring is bonded with the inner cylinder surface of the lens barrel by using glue is avoided, further, the generation of glue stray light is avoided, and the imaging quality of the imaging lens is favorably ensured. Meanwhile, the direct contact between glue and the lens can be effectively prevented, so that the lens is corroded, and the imaging performance of the lens is influenced. And furthermore, the glue precipitate of the imaging lens after being washed can be prevented from being adhered to the lens at the end part, the influence of the glue precipitate on the appearance of the imaging lens is avoided, and the imaging lens can have good appearance.

In addition, the clamping ring is abutted to the lens at the end part in the plurality of lenses, so that the assembling process is carried out, the pressure of the lens on the clamping ring can be mostly acted on the lens barrel, the possibility of deformation caused by the compression of the clamping ring is reduced, the structural stability of the clamping ring is ensured, meanwhile, the lens at the end part can be stably supported on the clamping ring, the supporting and protecting effects of the clamping ring on the lens are favorably ensured, the lens can be stably assembled in the lens barrel, the risk of lens shaking in the working process is avoided, the assembling stability of the lens and the lens barrel is greatly improved, and the structural stability of the imaging lens is further ensured.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural diagram of an imaging lens according to a first embodiment of the present invention;

fig. 2 is a schematic view illustrating an assembly of the lens barrel and the image side lens according to the present invention;

fig. 3 shows a partially enlarged view of the lens barrel in fig. 1;

FIG. 4 shows a schematic view of the construction of the clamping ring of FIG. 1;

fig. 5 shows an assembly diagram of the pressing ring and the lens barrel of the present invention;

fig. 6 is a schematic view showing another angle of the lens barrel of fig. 1;

FIG. 7 shows a schematic view of another angle of the clamping ring of FIG. 1;

fig. 8 is a schematic view showing an assembly of the pressing ring and the lens barrel according to a second embodiment of the present invention;

fig. 9 shows a schematic structural view of the pressing ring in fig. 8.

Wherein the figures include the following reference numerals:

10. a lens barrel; 11. inserting grooves; 20. pressing a ring; 21. inserting and connecting the bulges; 30. a lens; 40. a space ring; 50. a light shielding member.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the problem that there is structural stability poor in the imaging lens among the prior art, the utility model provides an imaging lens.

Example one

As shown in fig. 1 to 7, the imaging lens includes a lens barrel 10, a plurality of lenses 30 and a pressing ring 20, the plurality of lenses 30 are arranged in the lens barrel 10 at intervals along an axial direction of the lens barrel 10; the pressing ring 20 has a bayonet portion, the pressing ring 20 is disposed on the object-side end surface or the image-side end surface of the lens barrel 10 through the bayonet portion, and the pressing ring 20 abuts against the lens 30 located at the end portion among the plurality of lenses 30.

The clamping ring 20 is arranged on the object side end face or the image side end face of the lens barrel 10 through the insertion part, and the clamping ring 20 is fixedly connected with the lens barrel 10 through the insertion part, so that the assembly strength of the clamping ring 20 and the lens barrel 10 is favorably ensured, the risk of shaking or separation of the clamping ring 20 and the lens barrel 10 in the working process is avoided, the assembly stability of the clamping ring 20 and the lens barrel 10 is ensured, and the use reliability and the working stability of the imaging lens are ensured. Meanwhile, the pressing ring 20 is not arranged inside the lens barrel 10, so that the condition that the outer ring surface of the pressing ring 20 is bonded with the inner cylinder surface of the lens barrel 10 by using glue is avoided, further, the generation of glue stray light is avoided, and the imaging quality of the imaging lens is favorably ensured. Meanwhile, the direct contact between the glue and the lens 30 can be effectively prevented, so that the lens 30 is corroded, and the imaging performance of the lens 30 is influenced. Further, the glue precipitate of the imaging lens after being washed can be prevented from being adhered to the lens 30 at the end part, the influence of the glue precipitate on the appearance of the imaging lens is avoided, and the imaging lens is ensured to have good appearance.

In addition, the clamping ring 20 abuts against the lens 30 located at the end part of the plurality of lenses 30, so that in the assembling process, the clamping ring 20 can act on the lens barrel 10 mostly under the pressure of the lens 30, the possibility that the clamping ring 20 deforms due to compression is reduced, the structural stability of the clamping ring 20 is ensured, meanwhile, the lens 30 at the end part can stably bear against the clamping ring 20, the supporting and protecting effects of the clamping ring 20 on the lens 30 are favorably ensured, the lens 30 can be stably assembled in the lens barrel 10, the risk that the lens 30 shakes in the working process is avoided, the assembling stability of the lens 30 and the lens barrel 10 is greatly improved, and the structural stability of the imaging lens is ensured.

As shown in fig. 1, the lens 30 positioned at the image side end of the lens barrel 10 among the plurality of lenses 30 is an image side lens, and the pressing ring 20 is disposed on the image side end surface of the lens barrel 10 and abuts against the image side lens. The arrangement makes the assembly between the lenses 30 and the lens barrel 10 easier, so that during the assembly process, the plurality of lenses 30 can be sequentially installed into the lens barrel 10 from the image side of the lens barrel 10, after the lenses 30 are assembled, the pressing ring 20 is assembled on the image side end surface of the lens barrel 10, so that the object side end surface of the pressing ring 20 abuts against the image side end surface of the optical structure area of the image side lens, and at this time, the outer peripheral surface of the optical structure area of the image side lens abuts against the inner cylindrical surface of the lens barrel 10, so that the pressing ring 20 fixes the plurality of lenses 30 in the lens barrel 10, which is beneficial to ensuring the assembly stability of the lenses 30 and the lens barrel 10. Meanwhile, the pressing ring 20 is arranged on the image side end face of the lens barrel 10, so that the pressing ring 20 not only can serve as a part of the lens barrel 10, but also can play a role in fixing and supporting the lens 30, and the universality of the pressing ring 20 is greatly increased.

Note that the lens 30 has an optical structure region and an optical effective region. The optical structure region is used for bearing against at least one of the lens barrel 10, the light shielding member 50, the pressing ring 20 and the spacer ring 40, but not for imaging. The optically active area is used for the passage of imaging light and thus for imaging. And the optical structure region is positioned at the outer peripheral side of the optical effective region.

Specifically, when the insertion part is the insertion protrusion 21, the lens barrel 10 has the insertion groove 11 engaged with the insertion protrusion 21. When the lens barrel 10 is assembled with the pressing ring 20, the inserting protrusion 21 is inserted into the inserting groove 11 to realize the mechanical connection between the inserting protrusion 21 and the inserting groove 11, and further, the object-side end surface of the pressing ring 20 is simultaneously abutted to the image-side end surface of the lens barrel 10 and the image-side end surface of the optical structure area of the image-side lens, so that the pressing ring 20 is fixed on the lens barrel 10 to realize the fixed connection between the pressing ring 20 and the lens barrel 10, and meanwhile, the pressing ring 20 fixes and limits the plurality of lenses 30 in the lens barrel 10 to realize the limit and leaning function of the pressing ring 20 on the lenses 30. Through mutually supporting of grafting arch 21 and inserting groove 11, make grafting arch 21 can be full of whole inserting groove 11, and there can not be the gap between grafting arch 21 and the inserting groove 11, in order to guarantee imaging lens's leakproofness, can guarantee clamping ring 20 and lens cone 10's assemblage intensity simultaneously, avoid the risk that clamping ring 20 rocked in the course of the work, the assembly stability of clamping ring 20 and lens cone 10 has been guaranteed, and then imaging lens's structural stability has been guaranteed, it can form images stably to guarantee imaging lens.

As shown in fig. 5, the insertion protrusion 21 extends in the axial direction of the pressing ring 20, and the insertion groove 11 extends in the axial direction of the lens barrel 10 and communicates with the image-side end surface of the lens barrel 10. The arrangement is such that the insertion protrusion 21 protrudes from the object-side end surface of the pressing ring 20 and has a certain length, which is beneficial to increasing the assembling strength of the insertion protrusion 21 and the insertion groove 11 and ensuring the assembling stability.

The insertion protrusion 21 and the pressing ring 20 are integrally formed, and the insertion groove 11 and the lens barrel 10 are integrally formed. The pressing ring 20 is made of a metal material or a composite material, and the lens barrel 10 is made of a metal material or a composite material, so that the structural strength of the pressing ring 20 and the structural strength of the lens barrel 10 are guaranteed due to the fact that the metal material and the composite material have certain hardness.

Note that the image-side end surface of the lens barrel 10 is flush with the image-side end surface of the optical structure region of the image-side lens in a direction perpendicular to the optical axis.

Specifically, a curing adhesive is arranged between the insertion groove 11 and the insertion protrusion 21. The connection strength of the insertion groove 11 and the insertion protrusion 21 is increased by the arrangement, mechanical connection is achieved between the insertion groove 11 and the insertion protrusion 21 in an insertion mode, meanwhile, the connection is achieved through curing glue, the possibility that the pressing ring 20 is separated from the lens barrel 10 is further reduced, the anti-falling capacity is enhanced, meanwhile, the curing glue can fill air gaps between the insertion groove 11 and the insertion protrusion 21, and the sealing performance and the water resistance of the imaging lens are greatly increased.

As shown in fig. 4, the insertion portion is disposed flush with the outer circumferential surface of the pressing ring 20, that is, the insertion protrusion 21 is disposed flush with the outer circumferential surface of the pressing ring 20, and the insertion groove 11 is disposed on the outer cylindrical surface of the lens barrel 10. The arrangement facilitates the assembly of the pressing ring 20 and the lens barrel 10, reduces the assembly difficulty of the pressing ring 20 and the lens barrel 10, enables an operator to observe the assembly state of the insertion protrusion 21 and the insertion groove 11 from the outer cylinder surface side of the lens barrel 10, and facilitates the detection of the assembly state by the operator. Meanwhile, glue is conveniently dispensed between the insertion groove 11 and the insertion protrusion 21, the difficulty of setting curing glue between the insertion groove and the insertion protrusion is reduced, and the difficulty of assembling the pressing ring 20 and the lens barrel 10 is further reduced. In addition, the arrangement enables the glue joint position of the pressing ring 20 and the lens barrel 10 not to be in the lens barrel 10, effectively improves glue stray light, avoids the risk of corrosion of glue water flowing onto the lens 30 to the lens 30, and improves imaging quality. The situation that the glue precipitate of the imaging lens after washing is adhered to the lens 30 at the end part can be avoided, and the imaging lens can be ensured to have good appearance.

As shown in fig. 6 and 7, the plurality of insertion protrusions 21 are arranged at intervals in the circumferential direction of the pressing ring 20, the plurality of insertion grooves 11 are arranged at intervals in the circumferential direction of the lens barrel 10, and the plurality of insertion protrusions 21 correspond to the plurality of insertion grooves 11 one to one. The arrangement enables the plurality of inserting projections 21 to be separately arranged, each inserting projection 21 can work independently, and influence between two adjacent inserting projections 21 in the plurality of inserting projections 21 is avoided. Meanwhile, the number of the insertion protrusions 21 is increased, the mechanical connection position of the pressing ring 20 and the lens barrel 10 is increased, and the connection strength of the pressing ring 20 and the lens barrel 10 is enhanced, so that the structural stability of the imaging lens is ensured.

The number of the insertion projections 21 is not less than 1 and not more than 10, and the number of the insertion grooves 11 is not less than 1 and not more than 10. The number of the inserting protrusions 21 is 4, the number of the inserting grooves 11 is 4, and different numbers can be set according to actual conditions.

As shown in fig. 3, the length d1 of the insertion groove 11 in the axial direction of the lens barrel 10 satisfies: d1 is not less than 0.1mm and not more than 2.5 mm. If the length d1 of the insertion groove 11 in the axial direction of the lens barrel 10 is less than 0.1mm, d1 is too small, so that the insertion groove 11 is not easy to manufacture, the manufacturing difficulty of the insertion groove 11 is increased, and the mechanical connection strength between the insertion protrusion 21 and the insertion groove 11 is reduced. If the length d1 of the insertion groove 11 in the axial direction of the lens barrel 10 is greater than 2.5mm, d1 is too large, which easily affects the structural strength of the image-side portion of the lens barrel 10. The length d1 of the insertion groove 11 in the axial direction of the lens barrel 10 is limited within the range of 0.1mm to 2.5mm, which is beneficial to ensuring the connection strength of the insertion protrusion 21 and the insertion groove 11 and simultaneously ensuring the structural strength of the lens barrel 10.

Specifically, the depth w1 of the insertion groove 11 in the radial direction of the lens barrel 10 satisfies: w1 is more than or equal to 0.1mm and less than or equal to 3.5 mm. The depth w1 of the insertion groove 11 in the radial direction of the lens barrel 10 is limited within the range of 0.1mm to 3.5mm, the structural strength of the lens barrel 10 is prevented from being influenced by the overlarge depth w1, and the insertion strength of the insertion groove 11 and the insertion protrusion 21 is prevented from being influenced by the undersize depth w 1.

As shown in fig. 4, the length d2 of the insertion projection 21 in the axial direction of the lens barrel 10 satisfies: d2 is not less than 0.1mm and not more than 2.5 mm. If the length d2 of the insertion protrusion 21 in the axial direction of the lens barrel 10 is less than 0.1mm, the length d2 is too small, which easily affects the mechanical connection strength between the insertion protrusion 21 and the insertion groove 11. If the length d2 of the insertion protrusion 21 in the axial direction of the lens barrel 10 is greater than 2.5mm, the length d2 is too long, which easily affects the structural rationality of the pressing ring 20. The length d2 of the insertion protrusion 21 in the axial direction of the lens barrel 10 is limited within the range of 0.1mm to 2.5mm, which is beneficial to reasonably planning the structure of the pressing ring 20 and can ensure the stable connection of the pressing ring 20 and the lens barrel 10.

Specifically, the width w2 of the insertion projection 21 in the radial direction of the lens barrel 10 satisfies: w2 is more than or equal to 0.1mm and less than or equal to 3.5 mm. If the width w2 of the insertion protrusion 21 in the radial direction of the lens barrel 10 is smaller than 0.1mm, the insertion protrusion 21 is too thin, which easily affects the strength of the insertion protrusion 21, and further easily causes the situation that the insertion protrusion 21 is pressed and broken, and further affects the stable assembly of the pressing ring 20 and the lens barrel 10. If the width w2 of the insertion protrusion 21 in the radial direction of the lens barrel 10 is greater than 3.5mm, the insertion protrusion 21 is too thick and heavy, which easily affects the lightness and thinness of the pressing ring 20. The width w2 of the insertion protrusion 21 in the radial direction of the lens barrel 10 is limited within the range of 0.1mm to 3.5mm, which is beneficial to reasonably planning the thickness of the insertion protrusion 21, so as to ensure the strength of the insertion protrusion 21 and the connection effect with the lens barrel 10.

Of course, the axis of the pressing ring 20 is located on the same straight line as the axis of the lens barrel 10.

Specifically, the thickness of the lens barrel 10 is 0.15mm or more and 5mm or less. If the thickness of the lens barrel 10 is less than 0.15mm, the wall of the lens barrel 10 is too thin, so that the lens barrel 10 is not easy to manufacture, the manufacturing difficulty of the lens barrel 10 is increased, and the structural strength of the lens barrel 10 is reduced. If the thickness of the lens barrel 10 is greater than 5mm, the wall of the lens barrel 10 is too thick, so that the lens barrel 10 is too thick and heavy, the overall weight of the lens barrel 10 is increased, and the thinning of the lens barrel 10 is affected. The thickness of the lens barrel 10 is limited within the range of 0.15mm to 5mm, which is beneficial to reasonably planning the thickness of the lens barrel 10 and ensuring the structural strength of the lens barrel 10, so as to ensure the stable bearing of the lens barrel 10 on the lens 30 and ensure the lightness and thinness of the lens barrel 10.

As shown in fig. 4, the axial length H2 of the pressing ring 20 is 0.2 mm or more and 3 mm or less. If the axial length H2 of the clamping ring 20 is less than 0.2 mm, the axial length H2 of the clamping ring 20 is too small, the axial thickness of the clamping ring 20 is too thin, the strength of the clamping ring 20 is easily affected, the clamping ring 20 is easily deformed when being pressed, and the limiting and leaning action of the clamping ring 20 on the image side lens is affected. If the axial length H2 of the pressing ring 20 is greater than 3 mm, the axial length H2 of the pressing ring 20 is too large, so that the axial thickness of the pressing ring 20 is too thick, which affects the lightness and thinness of the pressing ring 20, and increases the difficulty in assembling the pressing ring 20 and the lens barrel 10. Limiting the axial length H2 of the clamping ring 20 to be in the range of 0.2 mm to 3 mm facilitates the rational planning of the axial thickness of the clamping ring 20 to improve the reliability of the use of the clamping ring 20.

As shown in fig. 1, the imaging lens further includes a light-shielding member 50 and a spacer 40. The light blocking member 50 is disposed between the adjacent lenses to form a support for the adjacent lenses; or the light shielding piece 50 is arranged between the spacer 40 and the lens 30 to support the spacer 40, so that the risk that the lens 30 is crushed by the spacer 40 is avoided, and the working stability of the imaging lens is improved.

The light-shielding member 50 may be a light-shielding paper or a spacer, and may be selected according to actual conditions.

Example two

The difference from the first embodiment is that the insertion portion is not flush with the outer circumferential surface of the pressing ring 20.

As shown in fig. 8 and 9, the insertion portion is located between the outer ring surface and the inner ring surface of the pressing ring 20 and is spaced from the outer ring surface. This arrangement also enables stable connection of the pressing ring 20 to the lens barrel 10. Meanwhile, the arrangement is such that the insertion groove 11 is arranged between the outer cylinder surface and the inner cylinder surface of the lens barrel 10 and is arranged at an interval with the outer cylinder surface, so that after the pressing ring 20 is assembled with the lens barrel 10, the assembly state of the insertion groove 11 and the insertion protrusion 21 cannot be observed from the outer cylinder surface side of the lens barrel 10, and the appearance of the imaging lens is better. In addition, the arrangement is such that the connection position of the pressing ring 20 and the lens barrel 10 is closer to the image side lens, so that the force transmitted by the image side lens to the pressing ring 20 can be more uniformly applied to the lens barrel 10, thereby ensuring the structural stability of the imaging lens.

EXAMPLE III

The difference from the first embodiment is that the insertion parts are not provided in plurality and are not provided at intervals in the circumferential direction of the pressing ring.

Specifically, the insertion parts are continuously arranged along the circumferential direction of the pressing ring. The arrangement makes the inserting projection on the pressing ring annular, and the inserting groove on the lens cone also annular, so that the mechanical connection area of the pressing ring and the lens cone is increased, the connection strength of the pressing ring and the lens cone is increased, and the connection of the pressing ring and the lens cone is more stable.

Example four

The difference from the first embodiment is that the insertion part of the pressing ring is not an insertion projection but an insertion groove.

Specifically, when the insertion part is an insertion groove, the lens barrel has an insertion protrusion matched with the insertion groove. The arrangement enables the lens barrel to be provided with the inserting protrusion, and the pressing ring is provided with the inserting groove, so that stable assembly of the pressing ring and the lens barrel can be realized.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An imaging lens, characterized by comprising:

a lens barrel (10);

the lens (30) is provided with a plurality of lenses (30), and the plurality of lenses (30) are arranged in the lens barrel (10) at intervals along the axial direction of the lens barrel (10);

the pressing ring (20) is provided with an inserting part, the pressing ring (20) is arranged on the object side end face or the image side end face of the lens barrel (10) through the inserting part, and the pressing ring (20) is abutted to the lens (30) located at the end part of the plurality of lenses (30).

2. Imaging lens according to claim 1,

when the insertion part is an insertion protrusion (21), the lens barrel (10) is provided with an insertion groove (11) matched with the insertion protrusion (21);

when the insertion part is an insertion groove, the lens barrel (10) is provided with an insertion protrusion matched with the insertion groove.

3. Imaging lens according to claim 2, characterized in that the plug-in projection (21) extends in the axial direction of the clamping ring (20).

4. Imaging lens according to claim 1,

the insertion part is arranged in parallel with the outer ring surface of the pressing ring (20);

the inserting part is positioned between the outer ring surface and the inner ring surface of the pressing ring (20) and is arranged at an interval with the outer ring surface.

5. Imaging lens according to claim 1,

the inserting parts are continuously arranged along the circumferential direction of the pressing ring (20); or

The inserting parts are multiple and are arranged at intervals along the circumferential direction of the pressing ring (20).

6. Imaging lens according to claim 2,

the length d1 of the insertion groove (11) in the axial direction of the lens barrel (10) satisfies: d1 is more than or equal to 0.1mm and less than or equal to 2.5 mm; and/or

The length d2 of the insertion projection (21) in the axial direction of the lens barrel (10) satisfies: d2 is not less than 0.1mm and not more than 2.5 mm.

7. Imaging lens according to claim 2,

the depth w1 of the insertion groove (11) in the radial direction of the lens barrel (10) satisfies: w1 is more than or equal to 0.1mm and less than or equal to 3.5 mm; and/or

The width w2 of the insertion projection (21) in the radial direction of the lens barrel (10) satisfies: w2 is more than or equal to 0.1mm and less than or equal to 3.5 mm.

8. The imaging lens according to claim 2, wherein a curing adhesive is disposed between the insertion groove (11) and the insertion protrusion (21).

9. The imaging lens according to claim 1, wherein the lens (30) located at an image side end of the lens barrel (10) among the plurality of lenses (30) is an image side lens, and the pressing ring (20) is disposed on and abutted against the image side end surface of the lens barrel (10).

10. Imaging lens according to any one of claims 1 to 9,

the thickness of the lens barrel (10) is more than or equal to 0.15mm and less than or equal to 5 mm; and/or

The axial length H2 of the pressing ring (20) is more than or equal to 0.2 mm and less than or equal to 3 mm.

Images