CN215067483U - Optical imaging lens - Google Patents

Abstract

The utility model provides an optical imaging lens. The optical imaging lens includes: the inner cylinder wall of the lens cone is provided with a first bearing surface and a first auxiliary bearing surface; the lens, the lens are a plurality of, and a plurality of lens interval sets up in the lens cone, hold and lean on optical element setting in the lens cone and lie in between two lenses, hold and lean on optical element and have second and hold and lean on face and the supplementary face of leaning on of second, the second holds and leans on face and the first face of leaning on, the supplementary face of leaning on of first and the supplementary face of leaning on of second sets up at an interval. The utility model provides an among the prior art poor optical imaging camera lens of big section have the bad problem of assemblage.

Description

Optical imaging lens

Technical Field

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

Background

With the rapid development of the smart phone industry, mobile phone manufacturers have increasingly demanded imaging lenses with high resolution and excellent imaging quality, and particularly lenses with small heads and large image surfaces are sought after by mobile phone manufacturers. However, a large step difference exists in the lens with a small head and a large image plane. At present, the large section difference between lenses can only increase the strength of the lenses through the metal spacing ring for transition, but the use of the metal spacing ring easily causes the inclination of the lenses and the spacing ring, which leads to poor assembly, and simultaneously increases the cost of the lens, finally causes the yield to be reduced and the quality to be reduced.

That is to say, the optical imaging lens with large step difference in the prior art has the problem of poor assembly.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an optical imaging lens, which solves the problem of poor assembly of the optical imaging lens in the prior art.

In order to achieve the above object, the present invention provides an optical imaging lens, including: the inner cylinder wall of the lens cone is provided with a first bearing surface and a first auxiliary bearing surface; the lens, the lens are a plurality of, and a plurality of lens interval sets up in the lens cone, hold and lean on optical element setting in the lens cone and lie in between two lenses, hold and lean on optical element and have second and hold and lean on face and the supplementary face of leaning on of second, the second holds and leans on face and the first face of leaning on, the supplementary face of leaning on of first and the supplementary face of leaning on of second sets up at an interval.

Further, the first auxiliary bearing surface is parallel to the second auxiliary bearing surface.

Furthermore, the included angle α between the first auxiliary bearing surface and the end surface of the object end of the lens barrel is greater than or equal to 0 degree and less than or equal to 30 degrees.

Further, the distance d between the first auxiliary bearing surface and the second auxiliary bearing surface is more than or equal to 0.002 mm and less than or equal to 0.02 mm.

Furthermore, the bearing optical element further comprises a third bearing surface and a fourth bearing surface, the third bearing surface bears against a lens positioned on the object side of the bearing optical element, and the third bearing surface bears against a lens positioned on the image side of the bearing optical element.

Further, the width a1 of the third bearing surface is greater than or equal to 0.08 mm and less than or equal to 0.5 mm and/or the width a2 of the first bearing surface is greater than or equal to 0.08 mm and less than or equal to 0.5 mm.

Further, the optical imaging lens includes a light shielding member disposed between two adjacent lenses or between a lens and a bearing optical element.

Furthermore, the bearing optical element is a bearing lens, and the second auxiliary bearing surface is parallel to the end surface of the object end of the lens barrel.

Further, the width a2 of the first bearing surface along the optical axis of the optical imaging lens is greater than or equal to 0.2 mm.

Furthermore, the bearing optical element is a spacer ring, and the bearing width of the second bearing surface along the extension direction of the optical axis of the optical imaging lens is more than or equal to 0.5 times the thickness of the spacer ring.

By applying the technical scheme of the utility model, the optical imaging lens comprises a lens cone, a lens and an optical element, and the inner cylinder wall of the lens cone is provided with a first bearing surface and a first auxiliary bearing surface; the lens is a plurality of, and a plurality of lens interval sets up in the lens cone, and the optical element that bears leans on sets up in the lens cone and lies in between two lenses, bears and leans on optical element and has second and supplementary bearing surface, and the second bears and leans on face and first bearing and lean on face, and first supplementary bearing and leaning on face and the supplementary bearing surface interval setting of second.

The first bearing surface is arranged in the lens barrel, the second bearing surface matched with the first bearing surface is arranged on the bearing optical element, and after the bearing optical element is assembled in the lens barrel, the first bearing surface and the second bearing surface are abutted and supported so as to ensure the stability of the bearing optical element in the lens barrel. The bearing optical element is positioned between two adjacent lenses and bears with the adjacent lenses or the shading part so as to ensure the stability of the arrangement of the lenses in the lens barrel. The first auxiliary bearing surface is arranged on the lens cone, the second auxiliary bearing surface is arranged on the bearing optical element, and the second auxiliary bearing surface and the first auxiliary bearing surface are arranged at intervals when the bearing optical element is assembled on the lens cone. When bearing and leaning on optical element slope, the supplementary face of bearing of second can bear with the first supplementary face of bearing and lean on to play the effect of bearing and leaning on optical element slope, guaranteed the stability of optical imaging lens group assemblage.

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 optical imaging lens according to a first embodiment of the present invention; and

fig. 2 shows a schematic structural diagram of an optical imaging lens according to a second embodiment of the present invention;

fig. 3 shows a schematic structural diagram of an optical imaging lens according to a third embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a lens barrel; 11. a first bearing surface; 12. a first auxiliary bearing surface; 20. a lens; 30. bearing against the optical element; 31. a second bearing surface; 32. a second auxiliary bearing surface; 33. a third bearing surface; 34. a fourth bearing surface; 40. 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 poor problem of assemblage in the poor optical imaging camera lens of big section among the prior art, the utility model provides an optical imaging camera lens.

As shown in fig. 1 to 3, the optical imaging lens includes a lens barrel 10, a lens 20 and a bearing optical element 30, wherein an inner barrel wall of the lens barrel 10 has a first bearing surface 11 and a first auxiliary bearing surface 12; the lens 20 is provided in plurality, the plurality of lenses 20 are arranged in the lens barrel 10 at intervals, the bearing optical element 30 is arranged in the lens barrel 10 and located between the two lenses 20, the bearing optical element 30 is provided with a second bearing surface 31 and a second auxiliary bearing surface 32, the second bearing surface 31 is in bearing contact with the first bearing surface 11, and the first auxiliary bearing surface 12 is arranged at intervals with the second auxiliary bearing surface 32.

By providing the first bearing surface 11 in the lens barrel 10 and providing the second bearing surface 31 matching with the first bearing surface 11 on the bearing optical element 30, after the bearing optical element 30 is assembled in the lens barrel 10, the first bearing surface 11 and the second bearing surface 31 are abutted and supported, so as to ensure the stability of the bearing optical element 30 placed in the lens barrel 10. The bearing optical element 30 is located between two adjacent lenses 20, and the bearing optical element 30 bears against the adjacent lenses 20 or the light shielding member 40, so as to ensure the stability of the arrangement of the lenses 20 in the lens barrel 10. By providing the first auxiliary bearing surface 12 on the lens barrel 10 and the second auxiliary bearing surface 32 on the bearing optical element 30, the second auxiliary bearing surface 32 is spaced from the first auxiliary bearing surface 12 when the bearing optical element 30 is assembled to the lens barrel 10. When the bearing optical element 30 inclines, the second auxiliary bearing surface 32 can be abutted and supported with the first auxiliary bearing surface 12 to play a role of bearing the optical element 30 to incline, and the stability of the optical imaging lens assembly is ensured.

It should be noted that the second auxiliary bearing surface 32 is located on the object side of the bearing optical element 30, or the second auxiliary bearing surface 32 is located on the image side of the bearing optical element 30, so as to avoid the stability of the assembly between the bearing optical element 30 and the lens 20.

As shown in fig. 1 to 3, the first auxiliary bearing surface 12 is parallel to the second auxiliary bearing surface 32. The arrangement is such that the first auxiliary bearing surface 12 and the second auxiliary bearing surface 32 are arranged oppositely, and after the bearing optical element 30 is dislocated, the second auxiliary bearing surface 32 can be abutted against the first auxiliary bearing surface 12 to avoid large dislocation of the bearing optical element 30, so as to avoid separation between the bearing optical element 30 and the lens 20, and ensure the stability of assembly.

It should be noted that, a certain interval is provided between the first auxiliary bearing surface 12 and the second auxiliary bearing surface 32, so that the lens 20 and the bearing optical element 30 are conveniently installed in the lens barrel 10, and the assembly of the optical imaging lens is not affected nor the imaging of the optical imaging lens is affected under the condition that the bearing optical element 30 is displaced by the distance of the width of the interval.

As shown in fig. 1, an included angle α between the first auxiliary bearing surface 12 and the end surface of the object end of the lens barrel 10 is greater than or equal to 0 degree and less than or equal to 30 degrees. If the included angle α between the first auxiliary bearing surface 12 and the end surface of the object end of the lens barrel 10 is greater than 30 degrees, the inclination degree of the first auxiliary bearing surface 12 is too large, which is not favorable for bearing between the first auxiliary bearing surface 12 and the second auxiliary bearing surface 32.

As shown in fig. 1 to 3, the distance d between the first auxiliary bearing surface 12 and the second auxiliary bearing surface 32 is greater than or equal to 0.002 mm and less than or equal to 0.02 mm. If the distance d between the first auxiliary bearing surface 12 and the second auxiliary bearing surface 32 is less than 0.002 mm, the distance between the first auxiliary bearing surface 12 and the second auxiliary bearing surface 32 is small, which is not favorable for the installation of the lens 20 and the bearing optical element 30. If the distance d between the first auxiliary bearing surface 12 and the second auxiliary bearing surface 32 is greater than 0.02 mm, the distance between the first auxiliary bearing surface 12 and the second auxiliary bearing surface 32 is relatively large, and the bearing effect is relatively poor. The distance d between the first auxiliary bearing surface 12 and the second auxiliary bearing surface 32 is limited within the range of 0.002 mm to 0.02 mm, so that the lens 20 and the bearing optical element 30 can be smoothly installed, and simultaneously the bearing effect of the first auxiliary bearing surface 12 and the second auxiliary bearing surface 32 can be ensured, the stability of the optical imaging lens assembly is ensured, and the production yield of the optical imaging lens is increased.

As shown in fig. 1 to fig. 3, the supporting optical element 30 further includes a third supporting surface 33 and a fourth supporting surface 34, the third supporting surface 33 supports the lens 20 on the object side of the supporting optical element 30, and the third supporting surface 33 supports the lens 20 on the image side of the supporting optical element 30. The third bearing surface 33 and the fourth bearing surface 34 can bear against the lens 20 at two sides of the optical element 30 to fix the lens 20, so as to ensure the position stability of the lens 20 and further ensure the imaging quality of the optical imaging lens.

As shown in fig. 1 to 3, the width a1 of the third bearing surface 33 is greater than or equal to 0.08 mm and less than or equal to 0.5 mm, and if the width a1 of the third bearing surface 33 is less than 0.08 mm, the width of the third bearing surface 33 is too small, which is not favorable for bearing between the third bearing surface 33 and the lens. If the width of the third bearing surface 33 is greater than 0.5 mm, the width of the third bearing surface 33 is too large, so that the bearing optical element 30 is easy to block imaging light, which is not favorable for ensuring the imaging quality of the optical imaging lens. The width a1 of the third bearing surface 33 is limited within the range of 0.08 mm to 0.5 mm, so that the stable bearing between the third bearing surface 33 and the lens can be ensured, and the imaging quality of the optical imaging lens can also be ensured.

As shown in fig. 1 to 3, the width a2 of the first bearing surface 11 is greater than or equal to 0.08 mm and less than or equal to 0.5 mm. If the width a2 of the first bearing surface 11 is less than 0.08 mm, the width of the first bearing surface 11 is too small to facilitate the bearing between the first bearing surface 11 and the lens barrel. If the width of the first bearing surface 11 is greater than 0.5 mm, the width of the first bearing surface 11 is too large, which is not favorable for miniaturization of the optical imaging lens. The width a1 of the first bearing surface 11 is limited within the range of 0.08 mm to 0.5 mm, so that the optical imaging lens can be manufactured in a direction of miniaturization while the first bearing surface 11 and the lens barrel are ensured to bear stably.

As shown in fig. 1 to 3, the optical imaging lens includes a light shielding member 40, the light shielding member 40 is disposed between two adjacent lenses 20, and the light shielding member 40 is supported at the optical mechanism region of two adjacent lenses 20 to reduce the generation of stray light and ensure the imaging quality of the optical imaging lens.

Further, the light blocking member 40 may be disposed between the lens 20 and the seating optical element 30. The generation of stray light can be reduced, and the imaging quality of the optical imaging lens is improved.

Example one

As shown in fig. 1, the bearing optical element 30 is a spacer, and the bearing width of the second bearing surface 31 in the extending direction of the optical axis is not less than 0.5 times the thickness of the spacer. The width of the second bearing surface 31 is greater than 0.5 times of the thickness of the space ring, so that the bearing stability between the space ring and the lens barrel 10 is ensured, the dislocation of the space ring is effectively prevented, and the stability of the optical imaging lens assembly is protected.

In the present embodiment, the two ends of the second auxiliary bearing surface 32 are respectively connected to the second bearing surface 31 and the third bearing surface 33, and the second auxiliary bearing surface 32 is disposed obliquely. The second bearing surface 31 is parallel to the optical axis, and the third bearing surface 33 and the fourth bearing surface 34 are both perpendicular to the second bearing surface 31. And the thickness of the spacer indicates the distance in the optical axis direction between the third bearing surface 33 and the fourth bearing surface 34. The width of the fourth bearing surface 34 is greater than 0.5 times the width of the third bearing surface 33.

Specifically, the space ring is a metal space ring.

Example two

The difference from the first embodiment is that the second auxiliary bearing surface 32 is different.

As shown in fig. 2, the bearing optical element 30 is a spacer, the second auxiliary bearing surface 32 and the third bearing surface 33 are on the same plane, the second auxiliary bearing surface 32 is located outward relative to the third bearing surface 33, the third bearing surface 33 bears against the lens 20, and the second auxiliary bearing surface 32 and the first auxiliary bearing surface 12 are spaced apart from each other. The third bearing surface 33 and the fourth bearing surface 34 are both perpendicular to the second bearing surface 31. And the thickness of the spacer indicates the distance in the optical axis direction between the third bearing surface 33 and the fourth bearing surface 34. The width of the fourth bearing surface 34 is greater than 0.5 times the width of the third bearing surface 33.

Specifically, the space ring is a metal space ring.

EXAMPLE III

The difference from the first embodiment is that the bearing optical element 30 is not a spacer ring, but a lens.

As shown in fig. 3, the bearing optical element 30 is a bearing lens, and the second auxiliary bearing surface 32 is parallel to the end surface of the object end of the lens barrel 10. The bearing lens can simultaneously play a role in bearing the lens 20 with the large section difference and imaging, so that the use of a metal space ring is reduced, and the manufacturing cost of the optical imaging lens is reduced. The second auxiliary bearing surface 32 is parallel to the end surface of the object end of the lens barrel 10, so that the optical element 30 can be conveniently manufactured, the risk of inclination of the optical element 30 can be avoided, and the imaging quality of the optical imaging lens can be prevented from being influenced.

Specifically, the width a2 of the first bearing surface 11 along the optical axis is greater than or equal to 0.2 mm. If the width a2 of the first bearing surface 11 along the optical axis is less than 0.2 mm, the bearing area between the first bearing surface 11 and the second bearing surface 31 is small, which is not favorable for the stability of bearing between the lens and the lens barrel 10. The width a2 of the first bearing surface 11 along the optical axis is larger than 0.2 mm, so that the bearing stability between the bearing lens and the lens barrel 10 can be ensured, and the stability of the optical imaging lens assembly can be ensured.

In the present embodiment, the light shielding member 40 is disposed between the lens 20 and the optical element 30 to reduce the generation of stray light and increase the imaging quality of the optical imaging 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 (10)

1. An optical imaging lens, comprising:

the lens barrel comprises a lens barrel (10), wherein the inner barrel wall of the lens barrel (10) is provided with a first bearing surface (11) and a first auxiliary bearing surface (12);

a plurality of lenses (20), wherein the plurality of lenses (20) are arranged in the lens barrel (10) at intervals,

the bearing optical element (30) is arranged in the lens barrel (10) and located between the two lenses (20), the bearing optical element (30) is provided with a second bearing surface (31) and a second auxiliary bearing surface (32), the second bearing surface (31) bears against the first bearing surface (11), and the first auxiliary bearing surface (12) and the second auxiliary bearing surface (32) are arranged at intervals.

2. Optical imaging lens according to claim 1, characterized in that the first auxiliary bearing surface (12) is parallel to the second auxiliary bearing surface (32).

3. The optical imaging lens according to claim 1, wherein an angle α between the first auxiliary bearing surface (12) and an end surface of an object end of the lens barrel (10) is greater than or equal to 0 degree and less than or equal to 30 degrees.

4. Optical imaging lens according to claim 1, characterized in that the spacing d between the first auxiliary bearing surface (12) and the second auxiliary bearing surface (32) is greater than or equal to 0.002 mm and less than or equal to 0.02 mm.

5. Optical imaging lens according to claim 1, characterized in that the bearing optical element (30) further comprises a third bearing surface (33) and a fourth bearing surface (34), the third bearing surface (33) bearing against the lens (20) on the object side of the bearing optical element (30), the third bearing surface (33) bearing against the lens (20) on the image side of the bearing optical element (30).

6. The optical imaging lens according to claim 5,

the width a1 of the third bearing surface (33) is more than or equal to 0.08 mm and less than or equal to 0.5 mm; and/or

The width a2 of the first bearing surface (11) is more than or equal to 0.08 mm and less than or equal to 0.5 mm.

7. Optical imaging lens according to claim 5, characterized in that it comprises a light-shielding member (40), said light-shielding member (40) being arranged between two adjacent lenses (20) or said light-shielding member (40) being arranged between said lenses (20) and said bearing optical element (30).

8. Optical imaging lens according to any one of claims 1 to 7, characterized in that the bearing optical element (30) is a bearing lens, the second auxiliary bearing surface (32) being parallel to an end face of the object end of the barrel (10).

9. Optical imaging lens according to claim 8, characterized in that the width a2 of the first bearing surface (11) along the optical axis of the optical imaging lens is greater than or equal to 0.2 mm.

10. Optical imaging lens according to any one of claims 1 to 7, characterized in that the bearing optical element (30) is a spacer, the bearing width of the second bearing surface (31) in the direction of extension of the optical axis of the optical imaging lens being greater than or equal to 0.5 times the thickness of the spacer.

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