CN210803842U - Lens unit and optical lens - Google Patents

Abstract

The utility model provides a lens subassembly and optical lens. The lens assembly includes: at least two lenses arranged in order from an object side to an image side; the spacers are arranged between every two adjacent lenses; the first limiting structure is positioned on the surface, facing the non-optical part of the spacer, of one lens in two adjacent lenses; and the second limit structure is positioned on the surface of the other lens of the two adjacent lenses, which faces the non-optical part of the spacer, and at least one of the first limit structure and the second limit structure is abutted with the spacer. The technical scheme of the utility model the lens subassembly of having solved among the prior art has the relatively poor problem of image quality.

Description

Lens unit and optical lens

Technical Field

The utility model relates to an optical lens field particularly, relates to a lens subassembly and optical lens.

Background

In the production process of the optical lens, the process step of baking is not required, the internal stress of the optical lens needs to be released through baking, and in addition, a lens component in the optical lens needs to be baked to be cured by glue. However, since the spacer that plays a role of blocking light in the optical lens is easily deformed during baking, when the amount of deformation of the spacer is excessively large, flare light is easily formed at the deformed position, thereby affecting the imaging quality of the lens in the optical lens.

That is, the prior art lens assemblies suffer from poor imaging quality.

Disclosure of Invention

A primary object of the present invention is to provide a lens assembly and an optical lens, which can solve the problem of poor imaging quality of the lens assembly in the prior art.

To achieve the above object, according to one aspect of the present invention, there is provided a lens assembly including: at least two lenses arranged in order from an object side to an image side; the spacers are arranged between every two adjacent lenses; the first limiting structure is positioned on the surface, facing the non-optical part of the spacer, of one lens in two adjacent lenses; and the second limit structure is positioned on the surface of the other lens of the two adjacent lenses, which faces the non-optical part of the spacer, and at least one of the first limit structure and the second limit structure is abutted with the spacer.

Furthermore, the spacer is provided with a first surface and a second surface which are oppositely arranged, the first limit structure is abutted against the first surface of the spacer, and the second limit structure is abutted against the second surface of the spacer or a distance a is reserved between the second limit structure and the second surface of the spacer; alternatively, the spacer has a first surface and a second surface that are oppositely disposed, the second limit structure bears against the second surface of the spacer, and the first limit structure is spaced a distance a from the first surface of the spacer.

Further, when the second limit structure is away from the second surface of the spacer by a distance a; or when the first limiting structure and the first surface of the spacer have a distance a, the distance a satisfies the following relation: a is more than or equal to 0.005mm and less than or equal to 0.5 mm.

Further, the distance a satisfies the following relationship: a is more than or equal to 0.005mm and less than or equal to 0.2 mm.

Further, the first limit structure comprises one or more first bulges connected with one of the two adjacent lenses, and when the first limit structure comprises a plurality of bulges, the plurality of first bulges are arranged at intervals along the direction away from the optical axis of the lens; or, the second limiting structure comprises one or more second bulges connected with the other lens of the two adjacent lenses, and when the second limiting structure comprises a plurality of second bulges, the plurality of second bulges are arranged at intervals along the direction far away from the optical axis of the lens.

Further, when the first stopper structure includes the first projection, the width c1 of the surface of the first projection facing the septum satisfies the following relationship: c1 is more than or equal to 0.05mm and less than or equal to 0.5 mm; alternatively, when the second stopper structure includes a second projection, the width c2 of the surface of the second projection facing the septum satisfies the following relationship: c2 is more than or equal to 0.05mm and less than or equal to 0.5 mm.

Furthermore, the first limiting structure and the second limiting structure are arranged in a staggered mode.

Further, when the first limit structure is disposed close to the optical axis of the lens relative to the second limit structure, a distance b1 is provided between the lower edge of the first limit structure and the inner side surface of the spacer, and a distance b2 is provided between the lower edge of the second limit structure and the inner side surface of the spacer, wherein the distance b1 satisfies the following relationship: b1 is more than or equal to 0mm and less than or equal to 0.05mm, and the distance b2 satisfies the following relation: b2 is more than or equal to 0.1mm and less than or equal to 0.35 mm; or, when the second limit structure is arranged close to the optical axis of the lens relative to the first limit structure, a distance b1 is provided between the lower edge of the first limit structure and the inner side surface of the spacer, and a distance b2 is provided between the lower edge of the second limit structure and the inner side surface of the spacer, wherein the distance b1 satisfies the following relationship: b1 is more than or equal to 0.1mm and less than or equal to 0.35mm, and the distance b2 satisfies the following relation: b2 is more than or equal to 0mm and less than or equal to 0.05 mm.

Further, the thickness dimension h of the spacer satisfies the following relationship: h is more than or equal to 0.012mm and less than or equal to 0.04 mm.

Furthermore, the lens assembly comprises n lenses, a spacer 20 is arranged between any two adjacent lenses 10, a first limiting structure 30 is arranged on the surface of the first lens 10 facing the non-optical part of the spacer 20, a second limiting structure 40 is arranged on the surface of the nth lens 10 facing the non-optical part of the spacer 20, a first limiting structure 30 and a second limiting structure 40 are correspondingly arranged on two opposite sides of the nth-i lens 10 in the middle, and the first limiting structure 30 arranged on the nth-i lens 10 is arranged close to the nth lens 10 and limits the spacer 20 in the two lenses 10 together with the second limiting structure 40 arranged on the nth lens 10; the second limiting structure 40 arranged on the (n-i) th lens 10 is arranged close to the first lens 10 and limits the spacers 20 in the two lenses 10 together with the first limiting structure 30 arranged on the (n- (i +1) th lens, wherein n is more than or equal to 3, i is more than or equal to 1 and less than n, and i and n are natural numbers.

According to another aspect of the present invention, there is provided an optical lens, including a lens barrel and a lens assembly located in the lens barrel, the lens assembly being the above lens assembly.

By applying the technical scheme of the utility model, the spacing structure leaning against the spacer can prevent the spacer from deforming towards one side where the spacing structure is located, namely the spacer can only deform towards one side where the other spacing structure is located; the other limit structure which is not supported by the spacer has a gap with the spacer, so that the deformation of the spacer in the baking step can be controlled by the gap. Like this, utilize two limit structure of first and second to control the deflection of spacer, avoid because the too big formation of deflection of spacer when toasting dazzles the condition emergence that light and influence the imaging quality of lens in spacer deformation position, and then ensured the optical property of lens.

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 view of a first embodiment of a lens assembly according to the present invention;

fig. 2 shows a schematic structural view of a second embodiment of a lens assembly according to the present invention;

fig. 3 shows a schematic structural view of a third embodiment of a lens assembly according to the present invention;

fig. 4 shows a schematic structural view of a fourth embodiment of a lens assembly according to the present invention; and

fig. 5 shows a schematic structural diagram of an embodiment five of a lens assembly according to the present invention.

Wherein the figures include the following reference numerals:

10. a lens; 11. a first support protrusion; 12. a second support protrusion; 20. a spacer; 21. a first surface; 22. a second surface; 30. a first limit structure; 40. and a second limit structure.

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.

The utility model discloses reach the utility model discloses an embodiment provides a lens subassembly. The lens assembly includes at least two lenses 10, a spacer 20, a first limiting structure 30 and a second limiting structure 40, which are sequentially arranged from an object side to an image side. Wherein the spacer 20 is located between two adjacent lenses 10, the first limit structure 30 is located on the surface of one lens 10 of the two adjacent lenses 10 facing the non-optical portion of the spacer 20, the second limit structure 40 is located on the surface of the other lens 10 of the two adjacent lenses 10 facing the non-optical portion of the spacer 20, and at least one of the first limit structure 30 and the second limit structure 40 bears against the spacer 20.

With the above arrangement, the stopper structure against which the spacer 20 bears can prevent the spacer 20 from being deformed in the direction toward it, so that the spacer 20 can be deformed only in the direction toward another stopper structure against which the spacer 20 does not bear. Another stop against which the septum 20 does not bear allows the amount of deformation of the septum 20 to be controlled by its spacing from the surface of the septum 20. Therefore, the limiting mechanism can control the deformation of the spacer 20 in the baking process, so that the phenomenon that the imaging quality of the lens 10 is affected due to the fact that glare is formed at the deformation position of the spacer 20 due to the fact that the deformation of the spacer 20 in the baking process is too large is avoided, and the optical performance of the lens 10 is further ensured.

In the embodiment of the present invention, as shown in fig. 1, in order to install the spacer 20, the non-optical portion of the opposite arrangement of two lenses 10 is provided with a supporting protrusion on the surface, for example, the non-optical portion of one lens 10 is provided with a first supporting protrusion 11 on the surface, the non-optical portion of the other lens 10 is provided with a second supporting protrusion 12 on the surface, the spacer 20 is located between two lenses 10 and is clamped between the first supporting protrusion 11 and the second supporting protrusion 12, wherein, the spacer 20 is in butt contact with the first supporting protrusion 11, the spacer 20 is in butt contact with the second supporting protrusion 12, and the spacer 20 can be fixed between two lenses by setting the first supporting protrusion 11 and the second supporting protrusion 12.

Wherein, the first supporting protrusion 11 is far away from the optical axis of the lens 10 relative to the first limiting structure 30 (i.e. the first supporting protrusion 11 is located outside the lens 10); the second support protrusion 12 is located away from the optical axis of the lens 10 relative to the second limit structure 40.

Example one

As shown in fig. 1, in the first embodiment of the present invention, the spacer 20 has a first surface 21 and a second surface 22 which are opposite to each other, the first limiting structure 30 is supported against the first surface 21 of the spacer 20, and a distance a is provided between the second limiting structure 40 and the second surface 22 of the spacer 20.

According to the above arrangement, during baking of the spacer 20, since the first stopper 30 abuts against the first surface 21 of the spacer 20, the first stopper 30 can prevent the spacer 20 from being deformed toward the first stopper 30. The spacer 20 can only deform in the direction approaching the second limit structure 40 when deformed by heat, and the amount of deformation of the spacer 20 does not exceed the distance a due to the distance a between the second limit structure 40 and the second surface 22, so that the amount of deformation of the spacer 20 when deformed by heat can be controlled by using the second limit structure 40. From the above, the deformation of the spacer 20 in the baking process can be controlled by the first limiting structure 30 and the second limiting structure 40, so that the formation of flare light at the deformation position of the spacer 20 due to the overlarge deformation of the spacer 20 can be avoided, the imaging quality of the lens 10 is affected, and the optical performance of the lens 10 is ensured.

Specifically, as shown in fig. 1, the first stopper structure 30 is a first protrusion provided on one of the adjacent two lenses 10, and the second stopper structure 40 is a second protrusion provided on the other of the adjacent two lenses 10. According to the arrangement, the deformation of the spacer 20 in the baking process can be controlled by the first protrusion and the second protrusion, so that the phenomenon that the imaging quality of the lens 10 is affected due to the fact that glare is formed at the deformation position of the spacer 20 due to the fact that the deformation of the spacer 20 is too large is avoided, and the optical performance of the lens 10 is further ensured.

Of course in alternative embodiments not shown in the drawings, the first stop structure 30 may comprise a plurality of first projections and the second stop structure 40 may comprise a plurality of second projections, or only the first stop structure 30 may be provided as a plurality of first projections, or only the second stop structure 40 may be provided as a plurality of second projections, as the case may be. Wherein, the plurality of first protrusions or the plurality of second protrusions are arranged at intervals along a direction having a certain included angle with the optical axis of the lens 10.

In the present application and the embodiments of the present application, the direction away from the optical axis of the lens means a direction away from the optical axis of the lens in the radial direction of the lens 10.

Specifically, as shown in fig. 1, the first protrusion (or the second protrusion) and the lens 10 connected to the first protrusion are integrally formed, which facilitates injection molding of the lens 10, thereby reducing the production cost.

Of course, in an alternative embodiment not shown in the drawings, the first protrusion (or the second protrusion) and the corresponding lens 10 may be provided separately according to actual conditions.

Specifically, as shown in fig. 1, the second protrusion has a distance a from the second surface 22 of the spacer 20, and the distance a satisfies the following relationship: a is more than or equal to 0.005mm and less than or equal to 0.5 mm.

Note that when the spacer 20 is baked, a certain amount of deformation of the spacer 20 is allowed to relieve the thermal stress generated when the spacer 20 expands due to heat. However, the deformation cannot be too large, and too large deformation may cause glare on the spacer 20 at the deformed position, thereby affecting the imaging quality of the lens 10.

According to the above arrangement, the space for accommodating the deformation of the spacer 20 can be defined by the second protrusion, so that the deformation of the spacer 20 is controlled to be not more than 0.5mm, which can ensure that the deformation of the spacer 20 is within the allowable range, and on one hand, the spacer 20 can release the thermal stress generated when the spacer is thermally expanded, and on the other hand, the spacer 20 can be effectively prevented from generating flare light to affect the imaging quality of the lens 10. The distance a is set to be greater than or equal to 0.005mm, so that the spacer 20 is ensured to have a certain deformation amount, the thermal stress generated during thermal expansion can be released, and the spacer 20 is prevented from being damaged under the action of the thermal stress and being incapable of being used.

Preferably, the distance a satisfies the following relationship: a is more than or equal to 0.005mm and less than or equal to 0.2 mm. In the above arrangement, the deformation of the spacer 20 is controlled within 0.2mm, so that on one hand, the spacer 20 can better release the thermal stress generated by thermal expansion, and on the other hand, the spacer 20 can be better prevented from generating flare light to affect the imaging quality of the lens 10.

Specifically, as shown in fig. 1, the width c1 of the surface of the first projection facing the separator 20 satisfies the following relationship: 0.05mm < c1 < 0.5mm, and the width c2 of the surface of the second projection facing the separator 20 satisfies the following relationship: c2 is more than or equal to 0.05mm and less than or equal to 0.5 mm. According to the above arrangement, the end parts of the first and second protrusions facing the spacer 20 form a plane, so that when the spacer 20 is deformed by heat, the spacer 20 is in surface-to-surface contact with the end parts of the first and second protrusions, thereby enhancing the limiting effect of the first and second protrusions on the spacer 20, and simultaneously preventing the end parts of the first and second protrusions from scratching the surface of the spacer 20, thereby ensuring the normal use of the spacer 20.

It should be noted that the first protrusion and the second protrusion in the first embodiment of the present invention are irregular-shaped bosses, which facilitates injection molding, thereby reducing the manufacturing cost of the optical lens. Of course, in alternative embodiments not shown in the drawings, the first and second projections may also be provided in regular shapes, such as truncated cones or truncated pyramids.

Specifically, as shown in fig. 1, in a direction perpendicular to the optical axis of the lens 10, the first protrusion and the second protrusion are arranged in a staggered manner, the first protrusion is arranged close to the optical axis of the lens with respect to the second protrusion, the lower edge of the first protrusion has a distance b1 from the inner side surface of the spacer 20, and the lower edge of the second protrusion has a distance b2 from the inner side surface of the spacer 20, wherein the distance b1 satisfies the following relationship: b1 is more than or equal to 0mm and less than or equal to 0.05mm, and b2 satisfies the following relation: b2 is not less than 0.1mm and not more than 0.35 mm.

According to the arrangement, the relative position relation of the first protrusion, the second protrusion and the spacer 20 is further defined, the first protrusion and the second protrusion can better limit the spacer 20, the deformation of the spacer 20 in the baking process is controlled, and therefore the phenomenon that the imaging quality of the lens 10 is affected due to the fact that glare is formed at the deformation position of the spacer 20 due to the fact that the deformation of the spacer 20 is too large is prevented, and the optical performance of the lens 10 is further ensured.

The thickness dimension h of the separator 20 satisfies the following relationship: h is more than or equal to 0.012mm and less than or equal to 0.04 mm. In this way, the spacer 20 can meet the size requirement when the optical lens is assembled, thereby ensuring that the lens assembly can be smoothly installed in the lens barrel.

Example two

As shown in fig. 2, the difference between the second embodiment and the first embodiment is that: in the second embodiment, the second stopper structure 40 is in contact with the second surface 22 of the septum 20, and the first stopper structure 30 are spaced apart from the first surface 21 of the septum 20 by a distance a.

In the second embodiment, the rest of the structure is the same as that in the first embodiment, and the description thereof is omitted.

EXAMPLE III

As shown in fig. 3, the difference between the third embodiment and the first embodiment is that: in the third embodiment, the second position limiting structure 40 is disposed closer to the optical axis of the lens 10 than the first position limiting structure 30, specifically, the lower edge of the first protrusion has a distance b1 from the inner side surface of the spacer 20, and b1 satisfies the following relationship: b1 is not less than 0.1mm and not more than 0.35 mm. The lower edge of the second protrusion has a distance b2 from the inner side of the baffle 20, b2 satisfies the following relationship: b2 is more than or equal to 0mm and less than or equal to 0.05 mm.

In the third embodiment, the description of the remaining structures is the same as that in the first embodiment, and the description thereof is omitted.

Example four

As shown in fig. 4, the fourth embodiment is different from the first embodiment in that:

in the fourth embodiment, (1) the second stopper structure 40 bears against the second surface 22 of the septum 20, and the first stopper structure 30 are spaced a distance a from the first surface 21 of the septum 20.

(2) The second position limiting structure 40 is disposed closer to the optical axis of the lens than the first position limiting structure 30, specifically, the lower edge of the first protrusion has a distance b1 with the inner side surface of the spacer 20, and the following relationship is satisfied: b1 is not less than 0.1mm and not more than 0.35 mm. The lower edge of the second protrusion is spaced from the inner side of the baffle 20 by a distance b2, satisfying the following relationship: b2 is more than or equal to 0mm and less than or equal to 0.05 mm.

In the fourth embodiment, the description of the remaining structures is the same as that in the first embodiment, and the description thereof is omitted.

EXAMPLE five

For three or more than three lenses 10 arranged in sequence, the limiting structure in the first to fourth embodiments can be adopted between any two adjacent lenses 10. Therefore, the lens 10 located at the middle position is provided with the first limiting structure 30 and the second limiting structure 40, and the first limiting structure 30 and the second limiting structure 40 jointly limit the same spacer 20 between any two adjacent lenses 10. In the above arrangement, the deformation of the spacer 20 can be controlled by using the first limiting structure 30 and the second limiting structure 40, so that the phenomenon that the imaging quality of the lens 10 is affected due to the formation of flare light at the deformation position of the spacer 20 caused by the excessively large deformation of the spacer 20 during baking is avoided, and the optical performance of the lens 10 is ensured.

As shown in fig. 5, the fifth embodiment is different from the first embodiment in that:

the lens assembly comprises three lenses 10, a spacer 20 is arranged between any two adjacent lenses 10, in the three lenses 10, a first limiting structure 30 is arranged on the surface, facing the spacer 20, of the first lens 10 closest to the object side, a second limiting structure 40 is arranged on the surface, facing the spacer 20, of the third lens 10 closest to the image side, and a first limiting structure 30 and a second limiting structure 40 are correspondingly arranged on the oppositely-arranged surface of the second lens 10 located in the middle position. Wherein, the first spacing structure 30 disposed on the lens 10 closest to the object side and the second spacing structure 40 disposed on the lens 10 located at the middle position jointly limit the septa 20 located in the two lenses 10; the second stopper structure 40 provided on the lens 10 closest to the image side together with the first stopper structure 30 provided on the lens 10 located at the intermediate position stops the spacer 20 located between the two lenses 10.

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

for clarity of description of the relative positional relationship between the lenses 10 and the spacer 20, the spacer 20 disposed between the first lens 10 and the second lens 10 is referred to as a first spacer, and the spacer 20 disposed between the second lens 10 and the third lens 10 is referred to as a second spacer.

Specifically, as shown in fig. 5, the first limit structure 30 on the first lens 10 among the three lenses 10 is a first protrusion provided on the surface of the first lens 10 facing the non-optical portion of the first spacer. The first and second stop structures 30 and 40 on the second lens 10 in the intermediate position correspond to first and second protrusions provided on oppositely disposed surfaces on the second lens 10, wherein the second protrusion is provided on a surface of the second lens 10 adjacent to the first lens 10 and the first protrusion is provided on a surface of the second lens 10 adjacent to the third lens 10. The second stop 40 on the third lens 10 is a second protrusion disposed on the non-optic portion surface of the lens 10 facing the second septum.

The first protrusion on the first lens 10 bears against the first surface 21 of the first spacer, and the second protrusion on the second lens 10 has a distance a from the second surface 22 of the first spacer, the distance a satisfying the following relationship: a is more than or equal to 0.005mm and less than or equal to 0.5 mm. The width c1 of the first projection on the first lens 10 facing the first surface 21 of the first spacer satisfies the following relationship: 0.05mm c 1mm 0.5mm, and the width c2 of the second projection on the second lens 10 facing the second surface 22 of the first spacer satisfies the following relationship: c2 is more than or equal to 0.05mm and less than or equal to 0.5 mm. The first protrusion on the first lens 10 is offset with respect to the second protrusion on the second lens 10, and the first protrusion on the first lens 10 is close to the optical axis with respect to the second protrusion on the second lens 10. Wherein, the distance b1 is arranged between the lower edge of the first bulge on the first lens 10 and the inner side surface of the first partition, and the b1 satisfies the following relation: b3 is more than or equal to 0mm and less than or equal to 0.05 mm. The lower edge of the second protrusion on the second lens 10 has a distance b2 from the inner side of the first septum, and b2 satisfies the following relationship: b2 is not less than 0.1mm and not more than 0.35 mm.

The first protrusion on the second lens 10 bears against the first surface 21 of the second spacer, and the second protrusion on the third lens 10 has a distance a from the second surface 22 of the second spacer, the distance a satisfying the following relationship: a is more than or equal to 0.005mm and less than or equal to 0.5 mm. The width c3 of the first protrusion on the second lens 10 towards the first surface 21 of the second spacer satisfies the following relationship: 0.05mm < c3 < 0.5mm, and a width c4 of the second projection on the third lens 10 facing the second surface 22 of the second spacer satisfies the following relationship: c4 is more than or equal to 0.05mm and less than or equal to 0.5 mm. The first protrusion on the second lens 10 is offset with respect to the second protrusion on the third lens 10, and the first protrusion on the second lens 10 is close to the optical axis with respect to the second protrusion on the third lens 10. Wherein, the distance b3 is arranged between the lower edge of the first bulge on the second lens 10 and the inner side surface of the second partition, and b3 satisfies the following relation: b3 is more than or equal to 0mm and less than or equal to 0.05 mm. The lower edge of the second protrusion on the third lens 10 has a distance b4 from the inner side of the second septum, and b4 satisfies the following relationship: b4 is not less than 0.1mm and not more than 0.35 mm.

It should be noted that, for clarity, the relative positional relationship between the first projection on the second lens 10, the second projection on the third lens 10, and the second spacer is described. The width of the first surface 21 of the first protrusion on the second lens 10 facing the second separator was set to c3, the width of the second surface 22 of the second protrusion on the third lens 10 facing the second separator was set to c4, the distance between the lower edge of the first protrusion on the second lens 10 and the inner side surface of the second separator was set to b3, and the distance between the lower edge of the second protrusion on the third lens 10 and the inner side surface of the second separator was set to b 4.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: in the process of baking the spacer, the first limiting structure can prevent the spacer from deforming towards the direction towards the first limiting structure because the first limiting structure is abutted against the first surface of the spacer. The spacer can only warp towards the direction that is close to second limit structure when being heated and warp, and has distance a between second limit structure and the second surface, so the deflection of spacer is no longer than above-mentioned distance a, like this, utilizes the deflection when second limit structure can control the spacer heated and warp. By last, first limit structure and second limit structure can control the spacer and toast the deformation of in-process to can avoid because the spacer deflection leads to excessively forming at spacer deformation position and dazzling, thereby influence the imaging quality's of lens the condition emergence, and then ensured the optical property of lens.

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 (11)

1. A lens assembly, comprising:

at least two lenses (10) arranged in order from the object side to the image side;

the spacers (20) are arranged between every two adjacent lenses (10);

a first limit structure (30) is positioned on the surface of one lens (10) of two adjacent lenses (10) facing to the non-optical part of the spacer (20);

and the second limit structure (40) is positioned on the surface of the other lens (10) of the two adjacent lenses (10) facing the non-optical part of the spacer (20), and at least one of the first limit structure (30) and the second limit structure (40) is abutted against the spacer (20).

2. The lens assembly of claim 1,

the spacer (20) is provided with a first surface (21) and a second surface (22) which are oppositely arranged, the first limit structure (30) is abutted against the first surface (21) of the spacer (20), the second limit structure (40) is abutted against the second surface (22) of the spacer (20) or a distance a is reserved between the second limit structure (40) and the second surface (22) of the spacer (20); alternatively, the first and second electrodes may be,

the spacer (20) has a first surface (21) and a second surface (22) which are oppositely arranged, the second limit structure (40) is abutted against the second surface (22) of the spacer (20), and the first limit structure (30) is spaced from the first surface (21) of the spacer (20) by a distance a.

3. A lens assembly according to claim 2, characterized in that when said second stop structure (40) is at a distance a from said second surface (22) of said spacer (20); or a distance a is provided between the first limiting structure (30) and the first surface (21) of the spacer (20), the distance a satisfies the following relation: a is more than or equal to 0.005mm and less than or equal to 0.5 mm.

4. The lens assembly of claim 3, wherein the distance a satisfies the relationship: a is more than or equal to 0.005mm and less than or equal to 0.2 mm.

5. The lens assembly of any one of claims 1 to 4,

the first limiting structure (30) comprises one or more first bulges connected with one of two adjacent lenses, and when the first limiting structure (30) comprises a plurality of bulges, the first bulges are arranged at intervals along the direction away from the optical axis of the lens; alternatively, the first and second electrodes may be,

the second limiting structure (40) comprises one or more second bulges connected with the other lens of two adjacent lenses, and when the second limiting structure (40) comprises a plurality of second bulges, the second bulges are arranged at intervals along the direction far away from the optical axis of the lenses.

6. The lens assembly of claim 5,

when the first stopper structure (30) includes a first projection, a width c1 of a surface of the first projection facing the septum (20) satisfies the following relationship: c1 is more than or equal to 0.05mm and less than or equal to 0.5 mm; alternatively, the first and second electrodes may be,

when the second stopper structure (40) comprises a second projection, the width c2 of the surface of the second projection facing the septum (20) satisfies the following relationship: c2 is more than or equal to 0.05mm and less than or equal to 0.5 mm.

7. A lens assembly according to any one of the claims 1 to 4, characterized in that the first stop structure (30) is arranged offset from the second stop structure (40).

8. The lens assembly of claim 7,

when the first stopper structure (30) is disposed close to the optical axis of the lens with respect to the second stopper structure (40), a distance b1 is provided between the lower edge of the first stopper structure (30) and the inner side surface of the septum (20), and a distance b2 is provided between the lower edge of the second stopper structure (40) and the inner side surface of the septum (20), wherein the distance b1 satisfies the following relationship: 0mm < b1 < 0.05mm, the distance b2 satisfying the following relationship: b2 is more than or equal to 0.1mm and less than or equal to 0.35 mm; alternatively, the first and second electrodes may be,

when the second limit structure (40) is disposed close to the optical axis of the lens relative to the first limit structure (30), a distance b1 is provided between the lower edge of the first limit structure (30) and the inner side surface of the septum (20), and a distance b2 is provided between the lower edge of the second limit structure (40) and the inner side surface of the septum (20), wherein the distance b1 satisfies the following relationship: 0.1mm < b1 < 0.35mm, the distance b2 satisfying the following relationship: b2 is more than or equal to 0mm and less than or equal to 0.05 mm.

9. A lens assembly according to any one of claims 1 to 4, characterized in that the thickness dimension h of the spacer (20) satisfies the following relation: h is more than or equal to 0.012mm and less than or equal to 0.04 mm.

10. A lens assembly according to claim 1, comprising n lenses, wherein the spacer (20) is arranged between any two adjacent lenses (10), the non-optical portion surface of the first lens (10) facing the spacer (20) is provided with the first limiting structure (30), the non-optical portion surface of the nth lens (10) facing the spacer (20) is provided with the second limiting structure (40), the opposite sides of the middle nth-i lens (10) are provided with the first limiting structure (30) and the second limiting structure (40), the first limiting structure (30) arranged on the nth-i lens (10) is arranged close to the nth lens (10) and is arranged together with the second limiting structure (40) arranged on the nth lens (10) in the two lenses (10) The sheet (20) is used for limiting; the second limiting structure (40) arranged on the (n-i) th lens (10) is arranged close to the first lens (10) and limits the spacing pieces (20) in the two lenses (10) together with the first limiting structure (30) arranged on the (n- (i +1) th lens, wherein n is more than or equal to 3, i is more than or equal to 1 and less than n, and i and n are natural numbers.

11. An optical lens comprising a barrel and a lens assembly located within the barrel, wherein the lens assembly is the lens assembly of any one of claims 1 to 10.

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