CN213986964U

CN213986964U - Spacer ring, lens module and electronic equipment

Info

Publication number: CN213986964U
Application number: CN202022525380.4U
Authority: CN
Inventors: 胡德忠
Original assignee: Jiangxi Jingchao Optical Co Ltd
Current assignee: Jiangxi Jingchao Optical Co Ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-08-17
Anticipated expiration: 2030-11-04

Abstract

The utility model relates to a technical field of make a video recording specifically discloses a spacer ring, camera lens module and electronic equipment. The space ring includes: the annular main body is a light-transmitting main body and comprises an object side surface, an image side surface and a first inclined surface, the first inclined surface is arranged on the inner side of the annular main body, and the first inclined surface extends from the image side surface to the inner part of the annular main body to be connected with the object side surface; and the light-tight layer is arranged on the object side surface and/or the image side surface and is used for absorbing the emitted stray light. The utility model provides a barrier ring's luminousness is high, has certain stray light's of absorption ability, consequently, when installing the barrier ring of this application in the camera lens module, the barrier ring need not be sheltered from by the anti-dazzling screen completely to the adjustment space when barrier ring installs is bigger. Meanwhile, the utility model provides a space ring's structural strength is high, and the atress effect is better, helps promoting the packaging stability and the reliability of camera lens module.

Description

Spacer ring, lens module and electronic equipment

Technical Field

The utility model relates to a technical field that makes a video recording especially relates to a space ring, camera lens module and electronic equipment.

Background

In recent years, users have more and more strict requirements on mobile phone cameras, especially on stray light, so that the extinction process of accessories inside the cameras is continuously innovated and broken through to improve the stray light. The existing stray light of the space ring is basically avoided or made into a special-shaped structure or reduced in surface reflectivity, and the structure is black, so that the effect of weakening or eliminating the stray light is achieved.

The conventional space ring has a black surface, and stray light reflected from an infrared filter (IR) to an inclined plane of the space ring can be eliminated only by reducing the reflectivity of the inclined plane of the space ring or hiding the space ring below a light shielding plate (IRIS), so that the stray light coming from the infrared filter is shielded by the light shielding plate and cannot reach the inclined plane of the space ring. The space ring structure is influenced by stray light, the structure is hidden under the shading sheet as far as possible, so that the stray light cannot hit the space ring, and the space ring structure also plays a role in connecting lenses at two sides, so that the effective bearing surfaces of the space ring and the front lens are limited, the stress, the assembly stability and the lens reliability are influenced, and the stray light and the stress of the space ring are difficult to simultaneously take into consideration.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a space ring, camera lens module and electronic equipment, wherein, the luminousness of space ring is high, has certain stray light's of absorption ability, and intensity is high, helps promoting the packaging stability and the reliability of camera lens module.

In order to realize the above-mentioned purpose, the embodiment of the utility model discloses a space ring, include:

the annular main body is a light-transmitting main body and comprises an object side surface, an image side surface and a first inclined surface, the first inclined surface is arranged on the inner side of the annular main body, and the first inclined surface extends from the image side surface to the inner part of the annular main body to be connected with the object side surface; and

and the light-tight layer is arranged on the object side surface and/or the image side surface and is used for absorbing stray light.

The utility model discloses a not euphotic layer's effect can absorb and penetrate stray light, specifically, behind the first inclined plane of stray light directive, partial stray light takes place the reflection, at this moment, adjusts through the contained angle to between first inclined plane and the object side, can make the effective imaging region of non-on the stray light directive camera lens module imaging surface of this reflection, can not influence the imaging quality of camera lens module. After the other part of the stray light passes through the annular body, the other part of the stray light can penetrate through the annular body and be absorbed, or the stray light is continuously reflected in the annular body and is absorbed and eliminated through the action of the light-tight layer. When installing the space ring of this application in the camera lens module, the space ring need not be sheltered from by anti-glare shield (IRIS) completely to adjustment space when the space ring installation is bigger, is convenient for more install in the camera lens module. Meanwhile, the design of the first inclined plane and the non-light-transmitting layer on the space ring can increase the effective bearing length of the space ring and the thickness of the bearing position, so that the structural strength of the space ring can be improved, the stress effect of the space ring is better, and the assembly stability and the reliability of the lens module are improved.

As an optional implementation manner, in the embodiment of the utility model, the space ring still includes the antireflection coating, the antireflection coating set up at least in first inclined plane is in order to be used for reducing the reflectivity on first inclined plane through the effect of antireflection coating, can increase stray light penetrability, weakens the reflectivity of stray light on first inclined plane, can prevent further that miscellaneous light from reflecting to the effective photosensitive area of camera lens module imaging surface on, guarantees the formation of image quality of camera lens module.

As an alternative, in an embodiment of the present invention, the longitudinal section of the first inclined plane is a straight line, an arc line, a step line or a sawtooth line. Through setting up the longitudinal section on first inclined plane into straight line, pitch arc, ladder line or sawtooth line, can design and select according to the actual use demand of lens module, at the in-process of actual processing space ring, require lowly to the processing of space ring, be convenient for reduce the manufacturing cost of space ring.

As an alternative implementation manner, in the embodiment of the present invention, the antireflection film includes MgF₂Film, SiO₂Film, TiO₂Film, Ti₃O₅Film or Al₂O₃And (3) a membrane. By setting the antireflection film to MgF₂Film, SiO₂Film, TiO₂Film, Ti₃O₅Film or Al₂O₃And the film can reduce the reflectivity of the first inclined plane and increase the light transmittance of the first inclined plane.

As an alternative, in the embodiment of the present invention, the light-impermeable layer is a black material layer. The black material layer can absorb light of all colors and has strong performance of absorbing stray light.

As an optional implementation manner, in an embodiment of the present invention, a second inclined plane is disposed on the non-light-transmissive layer, the second inclined plane is flush and flush with the first inclined plane and is butted to form a butt-joint inclined plane, and a ratio of a line length formed by the longitudinal section of the second inclined plane to a line length formed by the longitudinal section of the butt-joint inclined plane is 0 to 0.8 on the longitudinal section of the butt-joint inclined plane, and specifically, a spacer ring may be disposed according to the stray light path and the light-shielding sheet in the lens module.

As an alternative implementation, in an embodiment of the present invention, an included angle between the first inclined plane and an axis of the annular main body is 30 ° to 85 °. The included angle between the first inclined plane and the axis of the annular main body and the included angle between the second inclined plane and the axis of the annular main body are set to be 30-85 degrees, the effect of eliminating stray light is good, and during specific design, the inclined angles of the first inclined plane and the second inclined plane are selected according to actual requirements.

As an optional implementation manner, in the embodiment of the present invention, the light-tight layer and the annular main body are integrally injection-molded, so that the structural strength is high, and the use stability and the sealing performance of the spacer ring are improved.

According to the utility model discloses an on the other hand, the embodiment of the utility model provides a still discloses a lens module, the lens module includes foretell space ring. The utility model discloses a space ring includes non-light tight annular main part and non-euphotic layer and/or antireflection coating, during the use, through antireflection coating and non-euphotic layer's effect, can increase stray light penetrability, avoids stray light to take place the reflection, can absorb stray light simultaneously to can prevent that stray light from reflecting to the effective photosensitive area of camera lens module imaging surface. In addition, when installing the space ring of this application in the camera lens module, the space ring need not be sheltered from by anti-glare shield (IRIS) completely to adjustment space when the space ring installation is bigger, is convenient for install in the camera lens module more. Meanwhile, the design of the non-light-transmitting layer and/or the anti-reflection film can increase the structural strength of the space ring, so that the stress effect of the space ring is better, and the assembly stability and reliability of the lens module are improved.

According to the utility model discloses a further aspect, the embodiment of the utility model provides a still disclose an electronic equipment, electronic equipment includes foretell camera lens module.

Compared with the prior art, the utility model discloses a space ring, camera lens module have following beneficial effect at least:

the utility model discloses a space ring includes non-light tight annular main part and non-light tight layer, during the use, through the effect of non-light tight layer, can absorb and penetrate stray light. Specifically, after the stray light is emitted to the first inclined plane, part of the stray light is reflected, and at the moment, the included angle between the first inclined plane and the object side surface is adjusted, so that the reflected stray light can be emitted to a non-effective imaging area on the imaging surface of the lens module, and the imaging quality of the lens module cannot be influenced. After the other part of the stray light passes through the annular body, the other part of the stray light can penetrate through the annular body and be absorbed, or the stray light is continuously reflected in the annular body and is absorbed and eliminated through the action of the light-tight layer. In addition, when installing the space ring of this application in the camera lens module, the space ring need not be sheltered from by anti-glare shield (IRIS) completely to adjustment space when the space ring installation is bigger, is convenient for install in the camera lens module more. Meanwhile, the design of the non-light-transmitting layer and/or the anti-reflection film can increase the structural strength of the space ring, so that the stress effect of the space ring is better, and the assembly stability and reliability of the lens module are improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a first spacer ring disclosed in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second space ring disclosed in the first embodiment of the present invention;

FIG. 3 is a side view of the cage of FIG. 2;

FIG. 4 is a cross-sectional view of the spacer of FIG. 2;

fig. 5 is a schematic structural diagram of a third space ring disclosed in the first embodiment of the present invention;

FIG. 6 is a side view of the cage in FIG. 5;

FIG. 7 is a cross-sectional view of the spacer of FIG. 5;

fig. 8 is a schematic structural diagram of a first lens module according to a second embodiment of the present invention;

FIG. 9 is an enlarged view of the area M in FIG. 8;

fig. 10 is a schematic structural diagram of a second lens module according to the second disclosure of the present invention;

fig. 11 is an enlarged view of the region N in fig. 10;

fig. 12 is a front view of an electronic device disclosed in the third embodiment of the present invention.

Icon: 10. a space ring; 11. an annular body; 111. a first inclined plane; 112. an object side surface; 113. an image side; 12. a light-impermeable layer; 121. a second inclined plane; 13. an anti-reflection film; 20. a lens barrel; 21. a stopper step surface; 22. a light through hole; 30. a lens group; 31. a first lens; 32. a second lens; 33. a third lens; 34. a fourth lens; 35. a fifth lens; 40. a shading sheet; 50. an infrared filter; 60. an imaging plane; 200. a lens module; 300. an electronic device; 301. a housing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the particular nature and configuration of which may be the same or different, and not intended to indicate or imply the relative importance or importance of the indicated device, element, or component.

As described in the background art, the conventional spacer has a black surface, and stray light reflected from the infrared filter (IR) to the inclined surface of the spacer can be eliminated only by reducing the reflectivity of the inclined surface of the spacer, or by hiding the spacer under a light shielding plate (IRIS) to shield the stray light coming from the infrared filter, so that the stray light cannot hit the inclined surface of the spacer. The space ring structure is influenced by stray light, the structure is hidden under the shading sheet as far as possible, so that the stray light cannot hit the space ring, and the space ring structure also plays a role in connecting lenses at two sides, so that the effective bearing surfaces of the space ring and the front lens are limited, the stress, the assembly stability and the lens reliability are influenced, and the stray light and the stress of the space ring are difficult to simultaneously take into consideration. Therefore, the utility model provides a space ring, module and electronic equipment make a video recording, the utility model provides a stray light processing and atress effect can be compromise simultaneously to the space ring.

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

Example one

Referring to fig. 1 to 4, according to an embodiment of the present invention, a spacer 10 is provided, where the spacer 10 is suitable for use in a lens module and an electronic device such as a mobile phone, a computer, a wearable device, and the like. The space ring 10 in this embodiment includes an annular main body 11, and an antireflection film 13 and/or an opaque layer 12. Specifically, the annular body 11 may be provided with only the antireflection film 13 (as shown in fig. 1) or the opaque layer 12 (as shown in fig. 2 to 4), or may be provided with both the antireflection film 13 and the opaque layer 12 (not shown).

In this embodiment, the annular body 11 is a light-transmitting body, the annular body 11 includes an object side surface 112 and an image side surface 113, the object side surface 112 and the image side surface 113 are respectively located on an upper surface and a lower surface of the annular body 11, a first inclined surface 111 is disposed on an inner side of the annular body 11, and the first inclined surface 111 extends from the image side surface 113 toward an inner portion of the annular body 11 to be engaged with the object side surface 112, that is, the first inclined surface 111 in this embodiment extends and inclines from the object side surface 112 toward the inner portion of the annular body 11, that is, a side of the first inclined surface 111 engaged with the image side surface 113 is closer to an outer edge of the annular body 11, so as to ensure that the optical reflected from the lens module can be emitted to the first inclined surface 111 without being blocked by the image side surface 113; in actual processing, the antireflection film 13 is at least disposed on the first inclined surface 111 for reducing the reflectivity of the first inclined surface 111, and the opaque layer 12 is disposed on the object-side surface 112 and/or the image-side surface 113 of the annular main body 11 for absorbing stray light.

It is understood that the annular body 11 may be a circular annular body, a square annular body, a polygonal annular body, or other shaped annular body, etc.

When only the antireflection film 13 is disposed on the annular main body 11, after the stray light is emitted to the first inclined plane 111, the reflection rate of the first inclined plane 111 can be reduced by the antireflection film 13 on the first inclined plane 111, and the light transmittance of the first inclined plane 111 of the annular main body 11 is improved, so that the light emitted to the first inclined plane 111 can penetrate through the annular main body 11 as much as possible, thereby preventing the stray light from being reflected to the effective photosensitive area of the imaging surface of the lens module.

When the antireflection film 13 is not disposed on the first inclined plane 111 and only the opaque layer 12 is disposed, part of the stray light is reflected after the stray light is emitted to the first inclined plane 111, and at this time, by setting the inclination angle of the first inclined plane 111, the reflected stray light can be emitted to the non-effective imaging area on the imaging surface of the lens module, without affecting the imaging quality of the lens module. Another part of the stray light can penetrate the annular body 11 after the action of the annular body 11, or is continuously reflected in the annular body 11 and eliminated by the action of the opaque layer 12.

When setting up antireflection coating 13 and non-euphotic layer 12 simultaneously on annular main part 11, through antireflection coating 13 and non-euphotic layer 12's combined action, can increase stray light's penetrability, avoid stray light to take place the reflection, can absorb stray light simultaneously to can prevent that stray light from reflecting to the effective photosensitive area of camera lens module imaging surface on.

In addition, since the light emitted to the first inclined plane 111 can penetrate the annular main body 11 as much as possible, or be eliminated by the opaque layer 12, when the spacer ring 10 of the present application is installed in the lens module, the spacer ring 10 is not completely shielded by the light shielding plate (IRIS) (the first inclined plane 111 may protrude from the inner hole of the light shielding plate), and the adjustment space for installing the spacer ring 10 is larger, which is more convenient for installing in the lens module. Meanwhile, the design of the first inclined plane 111, the antireflection film 13 and/or the opaque layer 12 on the spacer ring 10 can increase the effective bearing length and the thickness of the bearing position of the spacer ring 10, so that the structural strength of the spacer ring 10 can be improved, the stress effect of the spacer ring 10 is better, and the assembly stability and reliability of the lens module can be improved.

The space ring 10 has the advantages that the structure is simple, the requirements on the forming of the space ring 10 and the extinction process of the first inclined plane 111 on the space ring 10 are lower, the die machining is easier, the production efficiency is high, and the extinction effect is better.

In practical design, the longitudinal section of the first inclined surface 111 in the present embodiment may be a straight line, an arc line, a step line, or a sawtooth line, and here, the longitudinal section of the first inclined surface 111 refers to a section obtained by cutting the first inclined surface 111 of the annular main body 11 along the axial direction of the annular main body 11, and the section of the first inclined surface 111 at this time is a straight line. Through setting up the longitudinal section of first inclined plane 111 into straight line, pitch arc, ladder line or sawtooth line, can design and select according to the actual use demand of lens module, at the in-process of actual processing space ring 10, require lowly to the processing of space ring 10, be convenient for reduce the manufacturing cost of space ring 10.

Illustratively, the antireflection film 13 in the present embodiment includes MgF₂Film, SiO₂Film, TiO₂Film, Ti₃O₅Film or Al₂O₃Films, etc. by setting the antireflection film 13 to MgF₂Film, SiO₂Film, TiO₂Film, Ti₃O₅Film orAl is₂O₃And a film capable of reducing the reflectivity of the first slope 111 and increasing the light transmittance of the first slope 111.

In some embodiments of the present invention, besides the first inclined plane 111 of the annular main body 11 is provided with the antireflection film 13, other outer surfaces of the annular main body 11 may also be provided with the antireflection film 13.

In order to ensure the appearance integrity of the space ring 10, the opaque layer 12 in this embodiment is provided with a second inclined surface 121 which is flush with and butt against the first inclined surface 111 to form a butt inclined surface. It is understood that the first inclined plane 111 and the second inclined plane 121 are in flush butt joint, which means that the first inclined plane 111 and the second inclined plane 121 are inclined at the same angle and are connected in the same plane at the butt joint position, and the inclination angle of the first inclined plane 111 and the second inclined plane 121 is the angle between the first inclined plane 111 and the second inclined plane 121 and the horizontal plane when the annular body 11 is placed horizontally. Specifically, when the first inclined plane 111 and the second inclined plane 121 are planes, the included angle is an included angle between the planes and a horizontal plane, when the first inclined plane 111 and the second inclined plane 121 are arc planes, the included angle is an included angle between a tangent line at a joint of the first inclined plane 111 and the second inclined plane 121 with the object side plane 112 and the object side plane 112, and when the first inclined plane 111 and the second inclined plane 121 are stepped planes or sawtooth planes, the included angle is an included angle between a line in an inclined direction of the stepped planes or the sawtooth planes and the horizontal plane. Through setting up second inclined plane 121 and the butt joint of first inclined plane 111 parallel and level, can guarantee the clean and tidy nature on space ring 10 surface, avoid the apparent edge to appear in the surface of space ring 10.

Alternatively, on the longitudinal section of the abutting inclined surface, the ratio of the linear length formed by the longitudinal section of the second inclined surface 121 to the linear length formed by the longitudinal section of the abutting inclined surface is 0 to 0.8, for example, 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, or 0.8, and the like, and it is understood that the longitudinal section of the abutting inclined surface here is a section obtained by cutting the abutting inclined surface of the annular body 11 along the axial direction of the annular body 11, and the longitudinal section of the abutting inclined surface at this time is a line, and specifically, the spacer 10 may be provided according to the stray light path and the light shielding sheet in the lens module.

In the process of actually designing the space ring 10, the adjustment of the stray light path can be realized by adjusting the inclination angles of the first inclined surface 111 and the second inclined surface 121. Optionally, the included angle between the first inclined surface 111 and the second inclined surface 121 in this embodiment and the axis of the annular body 11 is 30 ° to 85 °, for example, 30 °, 35 °, 40 °, 45 °, 50 °, 55 °, 60 °, 65 °, 70 °, 80 °, 85 °, or the like. The included angle between the first inclined plane 111 and the second inclined plane 121 and the axis of the annular main body 11 is set to be 30-85 degrees, so that the stray light can be well eliminated, and the inclined angles of the first inclined plane 111 and the second inclined plane 121 are selected according to actual requirements during specific design.

Alternatively, the annular body 11 in this embodiment may be made of glass, transparent plastic, or the like. The glass and the plastic have good light transmission performance, and the plastic can be materials with light transmission of over 90% such as K26R (polyolefin plastic), APEL5514 (cyclic olefin copolymer), EP5000 (epoxy 5000), EP6000 (epoxy 6000), E48R (polyolefin plastic), and the like, so that stray light can be effectively reduced from being reflected to an effective photosensitive area of an imaging surface to form stray light. When the stray light is emitted to the first inclined plane 111, the stray light is transmitted to the opaque layer 12 after being refracted and reflected in the annular main body 11, and then is eliminated by the opaque layer 12 or penetrates through the annular main body 11.

Referring to fig. 2 to 4, in some embodiments of the present invention, the opaque layer 12 is disposed on the object side 112, and when the stray light is transmitted from the first inclined plane 111 to the object side 112, the stray light can be eliminated by the opaque layer 12.

Referring to fig. 5 to 7, in other embodiments of the present invention, the opaque layer 12 is disposed on the image side 113 opposite to the object side 112, and the stray light can be eliminated by the opaque layer 12 when the stray light is transmitted from the first inclined plane 111 to the image side 113.

In other embodiments of the present invention, which are not shown in the drawings, the opaque layer 12 may be disposed on both the object side surface 112 and the image side surface 113, and the stray light can be eliminated by the opaque layer 12 when the stray light is transmitted from the first inclined surface 111 to the object side surface 112 and the image side surface 113.

Further, the opaque layer 12 of the present invention is a black material layer. The black material layer can absorb light of all colors and has strong performance of absorbing stray light. Optionally, the opaque layer 12 in this embodiment is a metal layer, which may be, for example, a black metal layer of iron, manganese, chromium, vanadium, titanium, or other metal alloys with black light absorption performance, and the opaque layer 12 is set as a metal layer, which not only has light absorption performance, but also improves the structural strength of the spacer ring 10, so that the spacer ring 10 has better stress effect, and is helpful to improve the assembly stability and reliability of the lens module. In other embodiments of the present invention, the opaque layer 12 can be further configured as a black plastic layer, and the black material that can absorb stray light is within the protection scope of the present invention.

In some embodiments of the present invention, the opaque layer 12 and the annular main body 11 are integrally formed by injection molding, so that the structural strength is high, and the use stability and the sealing performance of the spacer ring 10 in this embodiment are improved. Alternatively, the opaque layer 12 and the annular body 11 may be integrally connected by bonding or the like.

To sum up, the utility model discloses a space ring 10 includes non-light tight annular main part 11 and non-light tight layer 12 and/or antireflection coating 13, during the use, through antireflection coating 13 and non-light tight layer 12's effect, can increase stray light's penetrability, avoids stray light to take place the reflection, can absorb stray light simultaneously to can prevent that stray light from reflecting to the effective photosensitive area of camera lens module imaging surface. In addition, when the spacer ring 10 of the present application is installed in a lens module, the spacer ring 10 is not completely shielded by a light shielding film (IRIS), and an adjustment space when the spacer ring 10 is installed is larger, which is more convenient for installation in the lens module. Meanwhile, the design of the opaque layer 12 and/or the antireflection film 13 can increase the structural strength of the spacer ring 10, so that the spacer ring 10 has a better stress effect, and the assembly stability and reliability of the lens module are improved.

Example two

Referring to fig. 8 and 9, the present embodiment provides a lens module, which includes a lens barrel 20, a lens group 30, a spacer 10, a light-shielding sheet 40, and an infrared filter 50, wherein the spacer 10 is the spacer 10 in the first embodiment.

Specifically, the lens barrel 20 is provided with a light through hole 22, an inner side wall surface of the light through hole 22 is provided with a stop step surface 21, the lens group 30 is disposed in the light through hole 22, the lens group 30 includes a plurality of lenses, and the lenses of the lens group 30 are stopped on the stop step surface 21 and then are fixedly connected to the stop step surface 21 through glue or the like. Of course, in other embodiments of the present invention, the lenses of the lens assembly 30 can also be fixed on the inner sidewall surface of the light through hole 22 by a fastening connection, or a welding connection.

As shown in fig. 8 and 9, the lens group 30 of the present embodiment includes a first lens element 31, a second lens element 32, a third lens element 33, a fourth lens element 34 and a fifth lens element 35 disposed in order from an object side to an image side of the lens module. The first lens 31, the second lens 32, the third lens 33, the fourth lens 34, and the fifth lens 35 may be plastic lenses, and the plastic lenses may be formed by injection molding of polyolefin resin, polycarbonate resin, acrylic resin, or the like. The first lens 31, the second lens 32, the third lens 33, the fourth lens 34, and the fifth lens 35 may also be glass lenses. The first lens 31, the second lens 32, the third lens 33, the fourth lens 34, and the fifth lens 35 may also be a combination of a plastic lens and a glass lens. When the design is specific, the selection and the collocation can be carried out according to the actual requirements. In other embodiments of the present invention, the lens assembly 30 may further include two to four lenses or more than five lenses.

Further, the space ring 10 in the present embodiment is sandwiched between two adjacent lenses, and the space ring 10 is disposed between the third lens 33 and the fourth lens 34 in the present embodiment. Specifically, the spacer 10 is provided between the third lens 33 and the fourth lens 34, which facilitates adjustment of the separation distance between the third lens 33 and the fourth lens 34.

The image side of the spacer ring 10 is provided with a light shielding sheet 40, the light shielding sheet 40 is an annular light shielding sheet, which may be a circular light shielding sheet, a square annular light shielding sheet, a polygonal annular light shielding sheet, or other special-shaped annular light shielding sheets, and the light shielding sheet 40 is disposed inside the lens barrel 20 and around the periphery of the fourth lens 34, so that the stray light entering the light passing hole 22 can only pass through the middle part of the fourth lens 34, and the stray light is prevented from affecting the imaging quality. Further, the light shielding sheet 40 in this embodiment is an annular sheet having an opening portion therein, and the main material is PET, which is an abbreviation of Polyethylene terephthalate, and is abbreviated as PET or PETP. The Chinese means that the poly-p-phthalic acid plastic. The light-shielding sheet 40 has a light-tight light-shielding property, and functions to adjust the incident range of incident light, thereby preventing the transmission of light causing flare or ghost.

Alternatively, the light shielding sheet 40 in this embodiment may be fixed in the light passing hole 22 by an adhesive or the like. In other embodiments of the present invention, the light shielding sheet 40 can also be fixed in the light-passing hole 22 through the connection modes such as the buckle connection, the fastener connection or the welding connection, as long as it is in the utility model discloses an other deformation modes under the concept are all within the protection scope.

Further, the ir filter 50 in the present embodiment is disposed on the image side of the lens assembly 30, and the image side of the ir filter 50 has an image plane 60. The infrared filter 50 is disposed at the image side of the lens group 30, and facilitates filtering of stray infrared light, so that the stray infrared light entering the imaging plane is visible light.

As shown in fig. 8 and 9, in some embodiments of the present invention, the ir filter 50 is close to the non-light-pervious layer 12, and part of the stray light reflected from the ir filter 50 is reflected, so that the non-effective imaging area on the imaging surface of the lens module can be shot, and the imaging quality of the lens module is not affected, and another part of the stray light can penetrate the annular main body 11 after the action of the annular main body 11, or continuously reflect in the annular main body 11 and eliminate the stray light through the action of the non-light-pervious layer 12.

Referring to fig. 10 and 11, in other embodiments of the present invention, the ir filter 50 is disposed near the ring body 11, and a portion of the stray light reflected from the ir filter 50 can be emitted to the first inclined plane 111 of the spacer 10, and can be eliminated by the opaque layer 12 or penetrate through the ring body 11 to hit the ineffective photosensitive area after being transmitted in the ring body 11 by the first inclined plane 111.

EXAMPLE III

Referring to fig. 12, the present invention provides an electronic device 300, where the electronic device 300 may be, for example, a mobile phone, a tablet computer, a telephone watch, and the like, the electronic device includes a lens module 200 and a housing 301, and the lens module 200 is disposed on the housing 301. The lens module 200 in this embodiment is the lens module 200 in the second embodiment.

The space ring, the lens module and the electronic device disclosed by the embodiment of the invention are described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above embodiments is only used for helping to understand the space ring, the lens module and the electronic device and the core idea thereof; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, and in summary, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A cage, comprising:

2. The space ring according to claim 1, further comprising an antireflection film disposed on at least the first inclined surface for reducing the reflectivity of the first inclined surface.

3. The spacer of claim 1 wherein the longitudinal cross-section of the first inclined surface is straight, curved, stepped or serrated.

4. The cage of claim 2, wherein the antireflective film comprises MgF₂Film, SiO₂Film, TiO₂Film, Ti₃O₅Film or Al₂O₃And (3) a membrane.

5. The spacer of claim 1, wherein the light impermeable layer is a layer of black material.

6. The space ring according to claim 1, wherein the light-impermeable layer is provided with a second inclined surface which is flush with and butted against the first inclined surface to form a butted inclined surface, and a ratio of a line length formed by a longitudinal section of the second inclined surface to a line length formed by a longitudinal section of the butted inclined surface is 0 to 0.8 in a longitudinal section of the butted inclined surface.

7. The spacer of any one of claims 1 to 6 wherein the first chamfer is at an angle of 30 ° to 85 ° to the axis of the annular body.

8. The spacer of any of claims 1-6, wherein the light impermeable layer is injection molded integrally with the annular body.

9. A lens module comprising the spacer as claimed in any one of claims 1 to 8.

10. An electronic apparatus, characterized in that the electronic apparatus comprises a lens module as claimed in claim 9.