CN216411691U - Optical imaging lens and mobile terminal - Google Patents

Abstract

The utility model provides an optical imaging lens and a mobile terminal. The optical imaging lens includes: a lens barrel; the lens comprises a lens barrel, a plurality of lenses, a plurality of lens-fixing pieces and a plurality of fixing pieces, wherein the lenses are distributed at intervals along the optical axis direction of the lens barrel, the image side surface of at least one lens is provided with a first buckling surface, the object side surface of at least one other lens is provided with a second buckling surface, and the first buckling surface and the second buckling surface are buckled to form a buckling position; the buffer structure is positioned between two adjacent lenses and is abutted against at least one lens, the buffer structure is positioned on the outer side and/or the inner side of the buckling position, and the outer side of the buckling position is provided with a bearing surface. The utility model solves the problem of poor reliability of the optical imaging lens in the prior art.

Description

Optical imaging lens and mobile terminal

Technical Field

The utility model relates to the technical field of optical imaging equipment, in particular to an optical imaging equipment lens and a mobile terminal.

Background

In recent years, the competition in the mobile phone industry is more intense, the main camera lens of 50M/108M becomes the mainstream development trend, especially the direction of large image plane ultra-thin becomes the most critical direction of the competition in the industry, and is greatly sought by mobile phone end customers. However, the lenses with large image planes all have large step differences, which causes great instability of the lenses in the assembling process, and poor reliability occurs in the reliability test.

That is to say, the optical imaging lens in the prior art has the problem of poor reliability.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an optical imaging lens to solve the problem that the optical imaging lens in the prior art is poor in reliability.

In order to achieve the above object, according to one aspect of the present invention, there is provided an optical imaging lens comprising: a lens barrel; the lens comprises a lens barrel, a plurality of lenses, a plurality of lens-fixing pieces and a plurality of fixing pieces, wherein the lenses are distributed at intervals along the optical axis direction of the lens barrel, the image side surface of at least one lens is provided with a first buckling surface, the object side surface of at least one other lens is provided with a second buckling surface, and the first buckling surface and the second buckling surface are buckled to form a buckling position; the buffer structure is positioned between two adjacent lenses and is abutted against at least one lens, the buffer structure is positioned on the outer side and/or the inner side of the buckling position, and the outer side of the buckling position is provided with a bearing surface.

Further, the buffer structure includes one of a spacer and an ink layer.

Further, the buffer structure is a spacer, and when the spacer is located outside the fastening position, the thickness a2 of the spacer is equal to the posterior vector adjustment distance a1 of the lens having the first fastening surface.

Further, the outer diameter b2 of the spacer is equal to the radius d of the inner diameter rail of the lens barrel.

Furthermore, the inner diameter b of the spacer is larger than or equal to the outer diameter b1 of the second fastening surface and smaller than or equal to the inner diameter b3 of the bearing surface of the lens.

Further, the angular difference c1 of the inner diameter step of the lens barrel is not less than 0.02 mm.

Further, the buffer structure is a spacer, and when the spacer is located at the inner side of the buckling position, the thickness a2 of the spacer and the bearing clearance e of two adjacent lenses at the inner side of the buckling position satisfy: e is less than or equal to f and less than or equal to e +0.005 mm.

Further, when the buffer structure is an ink layer, the ink layer is arranged on the bearing surface of the lens.

Further, an ink layer is disposed on the object side having the lens; and/or an ink layer is disposed on the image side having the lenses.

According to another aspect of the present invention, there is provided a mobile terminal including the optical imaging lens described above.

By applying the technical scheme of the utility model, the optical imaging lens comprises a lens barrel, a plurality of lenses and a buffer structure, wherein the lenses are distributed at intervals along the optical axis direction of the lens barrel, the image side surface of at least one lens is provided with a first buckling surface, the object side surface of at least one other lens is provided with a second buckling surface, and the first buckling surface and the second buckling surface are buckled to form a buckling position; the buffer structure is located between two adjacent lenses and is abutted to at least one lens, the buffer structure is located on the outer side and/or the inner side of the buckling position, and the outer side of the buckling position is provided with a bearing surface.

Through set up buffer structure between two adjacent lenses, when carrying out the experiment of dependability to optical imaging camera lens, can cause the backstop to the removal between the lens, effectively avoided lens to take place the slope, effectively solved optical imaging camera lens and had the poor problem of dependability, increased optical imaging camera lens's dependability. And the first buckling surface is mutually matched with the second buckling surface, so that the movement of the lens can be effectively reduced, and the connection tightness between the lenses is improved. And the condition that the lens inclines can be relieved by placing the buffer structure at the outer side and the inner side of the buckling position. The outer side of the buckling position is provided with a bearing surface, so that two adjacent lenses can bear and lean against each other, and the stability of the arrangement of the lenses in the lens cone is ensured. And when the buffer structure is arranged at the outer side of the buckling position, the buffer structure is arranged between the bearing surfaces of the two lenses and is abutted against the bearing surfaces of the two lenses.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 shows an enlarged view at P in FIG. 1;

fig. 3 is a schematic structural diagram of an optical imaging lens according to a second embodiment of the present invention;

FIG. 4 is a schematic diagram showing the fitting relationship between lenses according to a third embodiment of the present invention;

FIG. 5 shows a schematic view of the image side of the lens of FIG. 4 with an ink layer;

FIG. 6 shows a schematic view of the object side of the lens of FIG. 4 with an ink layer.

Wherein the figures include the following reference numerals:

10. a lens barrel; 11. an inner diameter gear; 20. a lens; 30. a first fastening surface; 40. a second fastening surface; 50. and a buffer 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 embodiments with reference to the attached drawings.

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 invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; 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 utility model.

The utility model provides an optical imaging lens, aiming at solving the problem of poor reliability of the optical imaging lens in the prior art.

At present, although the strength transition of the lens with large step difference is increased by the metal spacing ring and the auxiliary bearing, the reliability problem among different materials still has a great timeliness problem, the product reliability is poor, the cost of the lens is increased, the yield is finally reduced, and the quality is reduced.

The utility model starts from the molding and assembly of the lens, and the spacer or the ink is added between the bearing surfaces of the lens, so that the buffer effect is realized between the lenses before and after the reliability test, and the improvement is further effectively realized, thereby increasing the yield and the improvement of the quality of the optical imaging lens with a large image surface.

As shown in fig. 1 to 6, the optical imaging lens includes a lens barrel 10, a plurality of lenses 20 and a buffer structure 50, wherein the plurality of lenses 20 are arranged at intervals along an optical axis direction of the lens barrel 10, an image side surface of at least one lens 20 has a first fastening surface 30, an object side surface of at least another lens 20 has a second fastening surface 40, and the first fastening surface 30 and the second fastening surface 40 are fastened to form a fastening position; the buffer structure 50 is located between two adjacent lenses 20 and abuts against at least one lens 20, the buffer structure 50 is located at the outer side or the inner side of the buckling position, and the outer side of the buckling position is provided with a bearing surface.

Through set up buffer structure 50 between two adjacent lens 20, when carrying out the reliance experiment to optical imaging lens, can cause the backstop to the removal between lens 20, effectively avoided lens 20 to take place the slope, effectively solved optical imaging lens and had the poor problem of reliance, increased optical imaging lens's reliance. The mutual cooperation between the first fastening surface 30 and the second fastening surface 40 can also effectively reduce the movement of the lens 20, and increase the connection tightness between the lenses 20. Placing the buffer structure 50 outside or inside the snap-fit position can reduce the tilt of the lens 20. The outer side of the buckling position is provided with a bearing surface, so that two adjacent lenses 20 can bear, and the stability of the arrangement of the lenses 20 in the lens barrel is ensured. When the cushion structure 50 is outside the engagement position, the cushion structure 50 is between the bearing surfaces of the two lenses 20 and abuts against both the bearing surfaces of the two lenses 20.

Of course, the cushioning structure 50 may be disposed on both the outer side of the engagement position and the inner side of the engagement position.

It should be noted that the buffer structure 50 plays a role of buffering between the lenses 20, so as to avoid the interaction between the lenses 20 causing the gap between two adjacent lenses 20 to change. That is to say, the buffer structure 50 can prevent the gap between two adjacent lenses 20 from changing, ensure the stability of the positions of the lenses 20, and increase the reliability of the optical imaging lens.

Specifically, the buffer structure 50 includes one of a spacer and an ink layer. Spacer and black layer all can play the cushioning effect, avoids the clearance between two adjacent lens 20 to change, and the spacer can shelter from stray light simultaneously, and the black layer can absorb stray light, can effectively reduce optical imaging lens's stray light's production, greatly increased optical imaging lens's imaging quality.

The spacer or the ink layer is used as the buffer structure 50, so that the reliability of the optical imaging lens is ensured, and the imaging quality of the optical imaging lens is improved.

The design that the buffer structure 50 is added between the bearing surfaces is in the reliability test of the optical imaging lens, and due to the buffer effect of the buffer structure 50, the flatness of the lens 20 between the bearing surfaces is ensured, the reliability is synchronously improved, the imaging quality of the optical imaging lens is ensured, the yield is improved, and the manufacturing cost is greatly reduced.

The water absorption rates of different materials are different, in a reliability test, the water absorption rate of the EP material is greater than that of the APL material, but the elastic modulus of the APL material is greater than that of the EP material, the deformation resistance is higher, and a spacer is added between the two materials to play a role in buffering.

Example one

As shown in fig. 1 and 2, the cushioning structure 50 is a spacer, and when the spacer is located outside the fastening position, the thickness a2 of the spacer is equal to the posterior vector adjustment distance a1 of the lens 20 having the first fastening surface 30. When the spacer is located at the outer side of the buckling position, the thickness of the spacer is required, and the thickness a2 of the spacer and the rear vector of the lens 20 with the first buckling surface 30 are adjusted by the distance a1, so that the position of the lens 20 does not move after the lens 20 is well adjusted and placed in the spacer, and the reliability of the optical imaging lens is guaranteed.

The lens 20 having the first fastening surface 30 is a lens located on the spacer side. The posterior vector adjustment distance is a distance that the lens on the spacer side can move in the rear direction when the spacer is not attached.

The front side of the optical imaging lens is the object side, and the rear side is the image side.

As shown in fig. 1, the outer diameter b2 of the septum is equal to the radius d of the inner diameter rail 11 of the lens barrel 10. The arrangement enables the spacer to be abutted to the inner diameter rail 11 of the lens barrel 10, so that the outer side wall of the spacer is abutted to the lens barrel 10, the stability of the spacer in bearing is improved, and the reliability of the optical imaging lens is further improved.

As shown in fig. 1, the inner diameter b of the spacer is equal to or larger than the outer diameter b1 of the second engagement surface 40 and equal to or smaller than the inner diameter b3 of the support surface of the lens 20. The inner diameter of the spacer is located on the inner side of the bearing surface due to the arrangement, so that the bearing area between the lens 20 and the spacer is ensured, and the working stability of the spacer is ensured. Meanwhile, the inner diameter b of the spacer is smaller than or equal to the inner diameter b3 of the bearing surface of the lens 20, so that the width of the spacer is larger than that of the bearing surface, the spacer absorbs stray light, the generation of the stray light is reduced, and the imaging quality of the optical imaging lens is ensured.

Specifically, the angular difference c1 of the inner diameter rail 11 of the lens barrel 10 is 0.02 mm or more. The angle section difference of the inner diameter gear 11 is set within the range of more than 0.02 mm, so that the newly added stray light can be avoided, the generation of the stray light is effectively reduced, and the imaging quality of the optical imaging lens is improved. Meanwhile, the interference between the lens barrel 10 and the spacer in the assembling process can be avoided, and the assembling difficulty is reduced.

Specifically, the mobile terminal comprises the optical imaging lens. The mobile terminal with the optical imaging lens has the characteristics of good reliability, good imaging quality and stable work.

Example two

The difference from the first embodiment is that the position of the spacer is different.

As shown in fig. 3, when the buffer structure 50 is a spacer, and the spacer is located inside the engagement position, the thickness a2 of the spacer and the bearing gap e of the two adjacent lenses 20 inside the engagement position satisfy: e is less than or equal to f and less than or equal to e +0.005 mm. If the thickness a2 of the spacer is smaller than the bearing clearance e of the two adjacent lenses 20 at the inner side of the buckling position, a clearance is generated between the lenses 20 and the spacer, the bearing of the spacer is unstable, and the reliability of the optical imaging lens is poor. If the thickness a2 of the spacer is greater than e +0.005mm, the thickness of the spacer is made too thick to fit between two adjacent lenses 20. The thickness of the spacer is limited within the range that f is not less than e and not more than e +0.005mm, seamless butting between the two lenses 20 and the spacer can be guaranteed, meanwhile, the spacer is not favorable for being assembled between the two lenses, and the working stability and reliability of the optical imaging lens are guaranteed.

EXAMPLE III

The difference from the first embodiment is that the specific structure of the buffer structure is different.

As shown in fig. 4 to 6, when the buffer structure 50 is an ink layer, the ink layer is disposed on the bearing surface of the lens 20. In this embodiment, the buffering structure 50 is an ink layer, the ink layer is disposed outside the buckling position and on the bearing surface, and the ink layer can buffer the interaction force of the lens in the reliability test process. Effectively improving the trouble caused by the reliability test.

Alternatively, the ink layer may be disposed on the object side with the lens 20, and may also be disposed on the image side with the lens 20. It is only necessary to ensure that the ink layer is located between two lenses 20, and of course, the bearing surfaces of two adjacent lenses 20 may be provided with the ink layer.

The ink layer can play a role in buffering and absorbing light, so that the generation of stray light is effectively reduced, and the imaging quality is ensured.

In the case shown in fig. 5, the image side surface of the lens in the front side in fig. 4 is provided with an ink layer.

In the case shown in fig. 6, the ink layer is provided on the object-side surface of the rear lens in fig. 4.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

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 optical imaging lens, comprising:

a lens barrel (10);

the lens barrel comprises a plurality of lenses (20), the lenses (20) are arranged at intervals along the optical axis direction of the lens barrel (10), the image side surface of at least one lens (20) is provided with a first buckling surface (30), the object side surface of at least one other lens (20) is provided with a second buckling surface (40), and the first buckling surface (30) and the second buckling surface (40) are buckled to form a buckling position;

the buffer structure (50) is positioned between two adjacent lenses (20) and is abutted against at least one lens (20), the buffer structure (50) is positioned on the outer side and/or the inner side of the buckling position, and the outer side of the buckling position is provided with a bearing surface.

2. Optical imaging lens according to claim 1, characterized in that the buffer structure (50) comprises one of a spacer and an ink layer.

3. Optical imaging lens according to claim 2, characterized in that the buffer structure (50) is a spacer, and the thickness a2 of the spacer is equal to the adjustment distance a1 of the posterior vector of the lens (20) having the first fastening surface (30) when the spacer is located outside the fastening position.

4. Optical imaging lens according to claim 3, characterized in that the outer diameter b2 of the spacer is equal to the radius d of the inner diameter rail (11) of the lens barrel (10).

5. The optical imaging lens according to claim 3, characterized in that the inner diameter b of the spacer is greater than or equal to the outer diameter b1 of the second fastening surface (40) and less than or equal to the inner diameter b3 of the bearing surface of the lens (20).

6. The optical imaging lens according to claim 3, characterized in that the angular step difference c1 of the inner diameter step (11) of the lens barrel (10) is 0.02 mm or more.

7. Optical imaging lens according to claim 2, characterized in that the buffer structure (50) is a spacer, and when the spacer is located inside the snap-in position, the thickness a2 of the spacer and the bearing clearance e of two adjacent lenses (20) inside the snap-in position satisfy: e is less than or equal to f and less than or equal to e +0.005 mm.

8. Optical imaging lens according to claim 2, characterized in that when the buffer structure (50) is an ink layer, the ink layer is arranged on the bearing surface of the lens (20).

9. The optical imaging lens according to claim 8,

the ink layer is arranged on the object side with the lens (20); and/or

The ink layer is disposed on the image side having the lens (20).

10. A mobile terminal characterized by comprising the optical imaging lens of any one of claims 1 to 9.

Images