CN111381337B

CN111381337B - Lens barrel and lens

Info

Publication number: CN111381337B
Application number: CN201811635563.2A
Authority: CN
Inventors: 刘立冬; 申溯; 高育龙; 万伟
Original assignee: Shine Optoelectronics Kunshan Co Ltd
Current assignee: Shine Optoelectronics Kunshan Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2022-08-23
Anticipated expiration: 2038-12-29
Also published as: CN111381337A

Abstract

The invention discloses a lens barrel, which comprises a cylindrical body and an anti-reflection structure used for at least reducing reflected light, absorbed light or scattered light, wherein the body is surrounded with an accommodating cavity used for accommodating lenses, one end of the body is provided with an opening communicated with the accommodating cavity, and the anti-reflection structure is positioned at the periphery of the opening. The periphery of the opening is provided with the anti-reflection structure, and the anti-reflection structure can reduce reflected light, absorbed light and/or scattered light, so that interference light at the periphery of the opening is reduced, and when the lens in the accommodating cavity of the lens barrel is used for shooting through the opening, the shooting quality is ensured. In addition, a lens barrel with the lens barrel is also disclosed.

Description

Lens barrel and lens

Technical Field

The present invention relates to a lens barrel and a lens, and more particularly, to a lens barrel and a lens.

Background

In recent years, with the continuous development of science and technology, electronic devices are continuously developing towards intellectualization, and besides digital cameras, portable electronic devices such as tablet computers, mobile phones and the like are equipped with lenses. Referring to fig. 1, a conventional lens is disposed corresponding to a glass sheet 1 ' of a housing, where the glass sheet 1 ' includes a window 11 ' and shielding ink 12 ' located around the window 11 '. The lens comprises a lens barrel 2 ' and a plurality of lenses 9 ' accommodated in the lens barrel 2 '. The lens barrel 2 ' includes an opening 21 ' and an end surface 22 ' around the opening. The lens 9 ' captures an image through the opening 21 ' and the window 11 '. The shielding ink 12 ' is used for shielding the internal structure, but the end face 22 ' of the lens barrel 2 ' is also exposed to the window 11 ' because a large enough window 11 ' needs to be reserved for the lens 9 ', and the interference light generated by the end face 22 ' through the action of the glass sheet 1 ' affects the image quality of the lens 3 '.

Disclosure of Invention

Based on this, there is a need to provide a lens barrel to solve the above technical problems.

One technical scheme of the lens cone of the invention is as follows:

the utility model provides a lens cone, its is including the body that is the tube-shape to and be used for at least for reducing reflection light, absorbed light or scattered light subtract anti-structure, the body encloses and is equipped with the chamber of acceping that is used for acceping the lens, the one end of body be equipped with accept the opening of chamber intercommunication, it is located to subtract anti-structure the open-ended periphery.

In one embodiment, one end of the body has an end face, and the opening is opened on the end face.

In one embodiment, the anti-reflection structure is a plurality of micro-nano structures formed on the end face and arranged in a protruding mode.

In one embodiment, the anti-reflection structure is an anti-reflection film arranged on the end face, and the anti-reflection film comprises a bearing layer and a plurality of micro-nano structures which are formed on the bearing layer and are arranged in a protruding and/or recessed mode.

In one embodiment, the antireflection film further comprises a substrate layer and an adhesive layer, the bearing layer is laminated on the substrate layer, and the antireflection film is bonded on the end face through the adhesive layer.

In one embodiment, the antireflection film further comprises a colored layer located between the substrate layer and the adhesive layer or located between the substrate layer and the bearing layer.

In one embodiment, the colored layer is a light absorbing ink layer.

In one embodiment, the cross section of the micro-nano structure is arc, triangle, quadrangle, trapezoid or irregular polygon, and the micro-nano structures are arranged at intervals or without intervals.

In one embodiment, the micro-nano structure defines a width W and a height or depth H arranged along a plane of the end face, where H > W.

In one embodiment, the antireflection structure is an AR film disposed on the end face.

In one embodiment, the AR film is a plated single layer film, a double layer film, or a multilayer film.

In one embodiment, the reflection reducing structure is an inclined surface which is arranged at one end of the body and is inclined relative to the opening, and the direction of the opening and the inclination angle of the inclined surface are greater than 90 degrees.

In one embodiment, the inclined surface is a concave surface, a convex surface, a curved surface, an arc surface, a wavy surface or a rugged surface.

In one embodiment, the anti-reflection structure further comprises a plurality of micro-nano structures formed on the inclined surface.

In one embodiment, the anti-reflection structure further comprises an anti-reflection film arranged on the inclined surface, and the anti-reflection film comprises a bearing layer and a plurality of micro-nano structures which are formed on the bearing layer and are arranged in a protruding and/or recessed mode.

In one embodiment, the antireflection structure further includes an AR film disposed on the inclined surface.

The invention also discloses a lens, which comprises the lens barrel and the lens accommodated in the lens barrel.

The invention has the beneficial effects that: the periphery of the opening is provided with the anti-reflection structure, and the anti-reflection structure can reduce reflected light, absorbed light and/or scattered light, so that interference light at the periphery of the opening is reduced, and when the lens in the accommodating cavity of the lens barrel is used for shooting through the opening, the shooting quality is ensured.

Drawings

FIG. 1 is a schematic cross-sectional view of a lens barrel of the present invention accommodating lenses and installed in a mobile phone;

FIG. 2 is an enlarged cross-sectional view taken circled in FIG. 1;

FIG. 3 is a further enlarged schematic cross-sectional view;

FIG. 4 is a schematic view of yet another enlarged cross-section;

FIG. 5 is a schematic view of yet another enlarged cross-section;

FIG. 6 is a schematic view of yet another enlarged cross-section;

FIG. 7 is a schematic view of yet another enlarged cross-section;

FIG. 8 is a schematic view of yet another enlarged cross-section;

FIG. 9 is a schematic cross-sectional view of another lens barrel of the present invention, which contains lenses and is installed in a mobile phone;

fig. 10 is a schematic cross-sectional view of another lens barrel;

fig. 11 is a schematic cross-sectional view of another lens barrel;

fig. 12 is a schematic cross-sectional view of another lens barrel.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described below. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, 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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention discloses a lens cone, which comprises a cylindrical body and an antireflection structure used for at least reducing reflected light, absorbed light or scattered light. The body encloses and is equipped with the chamber of acceping that is used for acceping the lens, the one end of body be equipped with accept the opening of chamber intercommunication, subtract anti-structure and be located the open-ended periphery. The periphery of the opening is provided with the anti-reflection structure, and the anti-reflection structure can reduce reflected light, absorbed light and/or scattered light, so that interference light at the periphery of the opening is reduced, and when the lens in the accommodating cavity of the lens barrel is used for shooting through the opening, the shooting quality is ensured.

Specifically, one end of the body is provided with an end face, and the opening is formed in the end face.

For example, the anti-reflection structure is a plurality of micro-nano structures formed on the end face and arranged in a protruding manner.

For example, the anti-reflection structure is an anti-reflection film arranged on the end face, and the anti-reflection film comprises a bearing layer and a plurality of micro-nano structures which are formed on the bearing layer and are arranged in a protruding and/or recessed manner. Furthermore, the antireflection film also comprises a base material layer and an adhesive layer, wherein the bearing layer is laminated on the base material layer, and the antireflection film is bonded on the end face through the adhesive layer. Furthermore, the antireflection film further comprises a colored layer positioned between the substrate layer and the adhesive layer or between the substrate layer and the bearing layer, and preferably, the colored layer is a light absorption ink layer.

The cross section of the micro-nano structure is arc, triangle, quadrangle, trapezoid or irregular polygon, and the plurality of micro-nano structures are arranged at intervals or without intervals.

The micro-nano structure defines the width W and the height or depth H which are arranged along the plane of the end face, wherein H is larger than W, and therefore better reaction reduction effect is achieved.

For another example, the antireflection structure is an AR film provided on the end face. Wherein the AR film is a single-layer film, a double-layer film or a multi-layer film which is plated.

Specifically, the anti-reflection structure is an inclined plane which is arranged at one end of the body and is inclined relative to the opening, and the inclination angle between the orientation of the opening and the inclined plane is larger than 90 degrees. The inclined surface is a concave surface, a convex surface, a curved surface, a cambered surface, a wavy surface or a rugged surface.

Furthermore, the anti-reflection structure also comprises a plurality of micro-nano structures formed on the inclined surface.

Furthermore, the anti-reflection structure also comprises an anti-reflection film arranged on the inclined surface, and the anti-reflection film comprises a bearing layer and a plurality of micro-nano structures which are formed on the bearing layer and are arranged in a protruding and/or sunken mode.

Furthermore, the antireflection film also comprises a base material layer and an adhesive layer, the bearing layer is laminated on the base material layer, and the antireflection film is bonded on the end face through the adhesive layer.

Further, the antireflection film also comprises a colored layer positioned between the substrate layer and the adhesive layer or positioned between the substrate layer and the bearing layer.

Further, the anti-reflection structure further comprises an AR film arranged on the inclined surface.

The invention also discloses a lens, which comprises the lens barrel and the lens accommodated in the lens barrel. The periphery of the opening of the lens cone is provided with the antireflection structure, so that interference light can be reduced, and the image pickup quality is improved.

Hereinafter, the lens barrel will be described by way of example with reference to the drawings.

Referring to fig. 1, a lens barrel 2 includes a cylindrical body 21 and a reflection reducing structure 3. The body 21 is surrounded with an accommodating cavity 211 for accommodating the lens 9, one end of the body 21 is provided with an opening 212 communicated with the accommodating cavity 211, and the reflection reducing structure 3 is located at the periphery of the opening 212. Specifically, one end of the body 21 has an end surface 213, and the opening 212 is provided on the end surface 213. The lens 9 captures images through the opening 212, the antireflection structure 3 is located around the opening 212, and the antireflection structure 3 can reduce interference light, thereby improving the image capturing quality.

To further explain the lens barrel 2, taking the lens barrel 2 mounted on the mobile phone as an example, as shown in fig. 1, the lens barrel 2 accommodates the lens 9 and is mounted in the mobile phone cover 11, and is disposed corresponding to the glass sheet 12. Glass sheet 12 includes a window 121 and a blocking ink 122 disposed around window 121. The opening 212 is provided corresponding to the window 121, and the lens 9 passes through the window 121 and captures an image through the window 121. The antireflection structure 3 is disposed on the periphery of the opening 11, and the light entering from the window 121 reaches the antireflection structure 3 and is absorbed or scattered, so that the light reflected to the window 121 is reduced or eliminated. Still alternatively, the reflection reducing structure 3 can reflect the light entering from the window 121 to the position where the ink 122 is blocked or the inner side of the cover plate 11, so as to reduce or avoid the light from reflecting from the window 121. The antireflection structure 3 can reduce disturbance light to the opening 212, thereby improving image pickup quality.

Referring to fig. 2 to 8, several antireflection structures 3 are illustrated.

Referring to fig. 2, the anti-reflection structure 3 is a plurality of micro-nano structures 31 formed on the end surface 213 and protruding therefrom. The micro-nano structure 31 may be formed on the end surface 213 by laser printing or the like. The micro-nano structure 31 has an arc-shaped cross section, and a plurality of micro-nano structures 31 are arranged on the end surface 213 at intervals. The micro-nano structure 31 defines a width W arranged along the plane of the end surface 213 and a height H perpendicular to the end surface 213, wherein H > W. Preferably, the micro-nano structure 31 is colorless photo-curing glue or thermosetting glue, and the antireflection effect is good.

Referring to fig. 3, the antireflection structure 3 is an antireflection film 32 disposed on the end surface 213. The antireflection film 32 includes a supporting layer 321 and a plurality of micro-nano structures 322 formed on the supporting layer 321 and protruding therefrom. And coating UV glue on the end face 213, stamping and curing to form a plurality of micro-nano structures 322, wherein the residual UV glue is the bearing layer 321. The micro-nano structure 322 has an arc-shaped cross section, and a plurality of micro-nano structures 322 are arranged on the end surface 213 at intervals. The micro-nano structure 322 defines a width W disposed along a plane of the end surface 213 and a height H perpendicular to the end surface 213, where H > W. Preferably, the micro-nano structure 322 is colorless photo-curing glue or thermosetting glue, and the antireflection effect is good. The UV glue may be colorless or colored glue, such as black, gray, red, etc. The antireflective coating 32 may also include a protective layer overlying the micro-nano structure 322.

Referring to fig. 4, the antireflection structure 3 is an antireflection film 33 disposed on the end surface 213. The antireflection film 33 includes an adhesive layer 331, a base material layer 332, a support layer 333, and a plurality of micro-nano structures 334 provided on the support layer 333, which are sequentially stacked. The substrate layer 332 is, for example, PET, PC, PMMA, a PC composite film, and the like, and for example, UV glue is coated on PET, and after imprint curing, the carrier layer 333 and the micro-nano structure 334 are formed. The antireflection film 33 is bonded to the end surface 213 by an adhesive layer 331. The micro-nano structures 334 have arc-shaped cross sections, and a plurality of micro-nano structures 334 are arranged on the end face 213 at intervals. The micro-nano structure 334 defines a width W disposed along a plane of the end surface 213 and a height H perpendicular to the end surface 213, where H > W. Preferably, the micro-nano structure 334 is colorless photo-curing glue or thermosetting glue, and the anti-reflection effect is good. The carrier layer 333 can also be a colored layer, and the substrate layer can also be a colored layer.

Referring to fig. 5, the antireflection structure 3 is an antireflection film 34 disposed on the end surface 213. The antireflection film 34 includes an adhesive layer 341, a colored layer 342, a base material layer 343, a carrier layer 344, and a plurality of micro-nano structures 345 disposed on the carrier layer 344, which are sequentially stacked. The substrate layer 343 is, for example, PET, PC, PMMA, a PC composite film, etc., for example, a UV glue is coated on PET, and after imprint curing, a carrier layer 344 and a micro-nano structure 345 are formed. The colored layer 342 plays a role of a main color of the antireflection film 34, and preferably, the colored layer 342 is a colored ink layer, for example, black, red, or the like. The antireflection film 34 is bonded to the end surface 213 by the adhesive layer 341. The micro-nano structure 345 has an arc-shaped cross section, and a plurality of micro-nano structures 345 are arranged on the end surface 213 at intervals. The micro-nano structure 345 defines a width W disposed along the plane of the end surface 213 and a height H perpendicular to the end surface 213, where H > W. Preferably, the micro-nano structure 345 is colorless photo-curing glue or thermosetting glue, and the antireflection effect is good.

The cross-sectional shape of the micro-nano structure can be other shapes besides the arc shape as shown in fig. 2 to 5. For example, in fig. 6, the micro/nano structure 351 has a rectangular cross-sectional shape. For another example, in fig. 7, the micro-nano structures 361 have a triangular cross-sectional shape, and the micro-nano structures 361 are disposed without a space.

Referring to fig. 9, the antireflection structure 3 is an AR film 37 disposed on the end surface 213. The AR film 37 is a plated double-layer film. In other embodiments, the AR film may also be a monolayer film or a multilayer film.

Referring to fig. 10, another lens barrel 4 includes a cylindrical body 41 and a reflection reducing structure 5. The body 41 is surrounded with a containing cavity 411 for containing the lens 9, one end of the body 41 is provided with an opening 412 communicated with the containing cavity 411, and the anti-reflection structure 5 is positioned at the periphery of the opening 412. The reflection reducing structure 5 is an inclined surface 51 disposed at one end of the body 41 and opposite to the opening 412, and an inclination angle between the direction of the opening 412 (i.e., the direction of the central axis of the lens 9) and the inclined surface 51 is greater than 90 degrees, for example, 150 degrees.

Taking the lens barrel 4 installed in the mobile phone as an example, as shown in fig. 10, the inclined surface 51 is disposed corresponding to the cover 11 of the mobile phone and the shielding ink 122, the light entering from the window 121 is reflected to the inclined surface 51 and then reflected to the cover 11 of the mobile phone and the shielding ink 122, and no or a small amount of reflected light is reflected from the window 121, so that the antireflection structure 5 can reduce the interference light to the opening 412, thereby improving the image quality.

The inclined surface 51 may be a flat surface that is obliquely arranged, as shown in fig. 10. It may also be a convex arc, such as the inclined surface 52 shown in fig. 11. It may also be a concave arc, such as the inclined surface 53 shown in fig. 12. In other embodiments, the surface may be wavy, random arranged high and low, etc.

The anti-reflection structure also comprises an auxiliary anti-reflection element arranged on the inclined surface and arranged on the inclined surface. The auxiliary antireflection element can be a micro-nano structure directly formed on the inclined surface. The auxiliary anti-reflection element can also be an anti-reflection film formed or attached on the inclined surface, and the anti-reflection film comprises a bearing layer and a plurality of micro-nano structures arranged on the bearing layer; the antireflective film may also include an adhesive layer, a substrate layer, a colored layer, and the like. Specific micro-nano structures and antireflection film structures can refer to fig. 2 to 8, and are not described herein again.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail. In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Moreover, the technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A lens cone is characterized by comprising a cylindrical body and an anti-reflection structure for at least reducing reflection light, absorption light or scattering light, wherein the body is surrounded with an accommodating cavity for accommodating lenses, one end of the body is provided with an opening communicated with the accommodating cavity, and the anti-reflection structure is positioned at the periphery of the opening;

one end of the body is provided with an end face, the opening is formed in the end face, and the anti-reflection structure is arranged on the end face; or, the anti-reflection structure is an inclined surface which is arranged at one end of the body and is inclined relative to the opening, the inclined surface is positioned at the periphery of the opening, and the inclination angle between the orientation of the opening and the inclined surface is greater than 90 degrees;

the anti-reflection structure comprises an anti-reflection film, and the anti-reflection film comprises a bearing layer, a plurality of micro-nano structures, a base material layer, an adhesive layer and a light absorption ink layer; the micro-nano structure is formed in a bearing layer and is arranged in a protruding and/or sunken mode, the antireflection film is bonded on the end face through the adhesive layer, and the light absorption ink layer is located between the base material layer and the adhesive layer or between the base material layer and the bearing layer.

2. The lens barrel according to claim 1, wherein the micro-nano structures have an arc, triangle, quadrangle, trapezoid or irregular polygon cross section, and a plurality of micro-nano structures are arranged at intervals or without intervals.

3. The lens barrel according to claim 2, wherein the micro-nano structure defines a width W disposed along a plane of the end face, and a height or depth H, where H > W.

4. The lens barrel according to claim 1, wherein the antireflection structure is an AR film provided on the end surface.

5. The lens barrel according to claim 4, wherein the AR film is a plated single-layer film, a double-layer film, or a multi-layer film.

6. The lens barrel according to claim 1, wherein the inclined surface is a concave surface, a convex surface, a curved surface, a cambered surface, a wavy surface, or a rugged surface.

7. The lens barrel according to claim 1, wherein the antireflection structure further includes an AR film provided to the inclined surface.

8. A lens barrel comprising the lens barrel according to any one of claims 1 to 7 and a lens accommodated in the lens barrel.