WO2022183495A1 - Lens barrel, lens, camera module, and electronic device - Google Patents

Abstract

A lens barrel (10), a lens (100), a camera module, and an electronic device (200). The lens barrel (10) comprises an object-side end (11), an image-side end (12), and a light-passing hole (13) passing through the object-side end (11) and the image-side end (12). The object-side end (11) is provided with at least one light extinction surface (14, 15) surrounding the light-passing hole (13). A plurality of light extinction grooves (16) are formed on the light extinction surface (14, 15). Each light extinction groove (16) comprises at least one reflecting surface (161), and the reflecting surface (161) is used for multiple reflections of the light incident into the light extinction groove (16) from the object-side end (11). In this way, even if the light reflected from the light extinction grooves (16) enters a lens in the barrel, the influence on final imaging is also small. Therefore, the imaging quality of the lens is improved, and the super-black appearance effect of the surface of the object-side end (11) can be achieved.

Description

Lens barrels, lenses, camera modules and electronic equipment technical field

The present application relates to the technical field of optical imaging, and in particular, to a lens barrel, a lens, a camera module and an electronic device.

Background technique

In recent years, with the continuous development of science and technology, electronic devices are constantly developing towards intelligence. In addition to digital cameras, portable electronic devices such as tablet computers and mobile phones are also equipped with lens components. Now the camera window on the mobile phone will be very large, which will ensure that the lens does not look white from the outside. Therefore, the appearance surface will be processed to ensure that when the lens is assembled in the mobile phone, the lens seen from the opening of the mobile phone will be black.

At present, in the prior art, the outer surface of the lens barrel is usually coated with a black film to ensure that when the lens is assembled in the mobile phone, the lens seen from the opening of the mobile phone is black. In the process of realizing the present application, the inventor found that there are at least the following problems in the prior art: since the appearance surface of the lens barrel is composed of several planes with different angles, the color of each plane will be different during coating, making the lens Different colors can be seen from the open window of the mobile phone, so it is impossible to be beautiful at the same time as matting.

SUMMARY OF THE INVENTION

In view of this, it is necessary to provide a lens barrel, a lens, a camera module and an electronic device to solve the above problems.

An embodiment of the present application provides a lens barrel, which includes an object-side end, an image-side end, and a light-passing hole penetrating the object-side end and the image-side end, and the object-side end is provided with a light-passing hole disposed around the light-passing hole. At least one extinction surface, a plurality of extinction grooves are formed on the extinction surface, each of the extinction grooves includes at least one reflection surface, and the reflection surface is used to reflect the light entering the extinction groove from the object side end. The light is reflected multiple times.

The above-mentioned lens barrel is provided with a plurality of extinction grooves on the extinction surface of the object side end, and the reflective surface of each extinction groove can reflect the light incident from the object side end multiple times, reducing the intensity of the reflected light, so that the Even if the light reflected in the extinction groove enters the lens in the barrel, it has little effect on the final image, thereby improving the image quality of the lens, and can realize the appearance effect of super black surface on the object side.

The embodiments of the present application also provide a lens, including the above-mentioned lens barrel.

The above-mentioned lens includes a lens barrel, and the lens barrel is provided with a plurality of extinction grooves on the extinction surface of the object side end, and the reflective surface of each extinction groove can reflect the light incident from the object side end multiple times, reducing the reflected light. Therefore, even if the light reflected from the extinction groove enters the lens in the barrel, it has little effect on the final image, thereby improving the image quality of the lens, and realizing the super-black appearance effect of the surface on the object side. .

The embodiment of the present application also proposes a camera module including the above pair of lenses.

The above-mentioned camera module includes a lens barrel, and the lens barrel is provided with a plurality of extinction grooves on the extinction surface of the object side end, and the reflection surface of each extinction groove can reflect the light entering from the object side end multiple times to reduce reflection. The intensity of the outgoing light, so that the light reflected from the extinction groove will have little effect on the final image even if it enters the lens in the barrel, thereby improving the imaging quality of the lens, and realizing the super-black appearance of the surface on the object side. Effect.

The embodiment of the present application also proposes an electronic device, including the above-mentioned camera module.

The above-mentioned electronic equipment includes a lens barrel, and the lens barrel is provided with a plurality of extinction grooves on the extinction surface of the object side end, and the reflection surface of each extinction groove can reflect the light incident from the object side end multiple times, reducing the reflected light. Therefore, even if the light reflected from the extinction groove enters the lens in the barrel, it has little effect on the final image, thereby improving the image quality of the lens, and realizing the super-black appearance effect of the surface on the object side. .

Description of drawings

FIG. 1 is a schematic three-dimensional structural diagram of a lens barrel provided by a first embodiment of the present application.

FIG. 2 is a schematic cross-sectional structure diagram of the lens barrel provided by the first embodiment of the present application.

FIG. 3 is a schematic three-dimensional structural diagram of a lens barrel provided by a second embodiment of the present application.

FIG. 4 is a schematic cross-sectional structure diagram of a lens barrel provided by a second embodiment of the present application.

FIG. 5 is a schematic three-dimensional structural diagram of a lens barrel provided by a third embodiment of the present application.

FIG. 6 is a schematic cross-sectional structure diagram of a lens barrel provided by a third embodiment of the present application.

FIG. 7 is a schematic three-dimensional structural diagram of a lens barrel provided by a fourth embodiment of the present application.

FIG. 8 is a schematic cross-sectional structure diagram of a lens barrel provided by a fourth embodiment of the present application.

FIG. 9 is a schematic three-dimensional structural diagram of a lens barrel according to a fifth embodiment of the present application.

FIG. 10 is a schematic cross-sectional structure diagram of a lens barrel according to a fifth embodiment of the present application.

FIG. 11 is a schematic three-dimensional structural diagram of a lens barrel provided by a sixth embodiment of the present application.

FIG. 12 is a schematic cross-sectional structure diagram of a lens barrel provided by a sixth embodiment of the present application.

FIG. 13 is a schematic structural diagram of a lens provided by an embodiment of the present application.

FIG. 14 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Description of main component symbols

Lens barrel 10

Object side 11

Image side 12

Clear hole 13

The first extinction surface 14

Second matting surface 15

Extinction groove 16

The first reflecting surface 161

first side 1611

Second side 1612

The second reflector 162

The third side 1621

Fourth side 1622

First truncation 163

Frontline 1631

Second line 1632

Second truncation 164

Third line 1641

Fourth line 1642

Flat part 165

The third reflector 166

Third truncation 167

Fourth reflective surface 168

Fifth reflective surface 169

The first axis 17

Second axis 18

Lens 100

Electronic equipment 200

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

Referring to FIGS. 1 and 2 , a first embodiment of the present application provides a lens barrel 10 , including an object side end 11 , an image side end 12 , and a light-passing hole 13 penetrating the object side end 11 and the image side end 12 .

The object-side end 11 is provided with a first matte surface 14 and a second matt surface 15 disposed around the light-passing hole 13 . The first extinction surface 14 and the second extinction surface 15 are both flat surfaces. The first extinction surface 14 is inclined with respect to the optical axis and faces the optical axis; the second extinction surface 15 is located outside the first extinction surface 14 and is perpendicular to the optical axis, one of the first extinction surface 14 and the second extinction surface 15 A plurality of matting grooves 16 are formed thereon.

It can be understood that, in other embodiments, one of the first extinction surface 14 and the second extinction surface 15 may be omitted, that is, only the first extinction surface 14 or only the second extinction surface 14 is provided at the object side end 11 Matt surface 15.

The extinction grooves 16 are arranged in a circular array around the light-passing hole 13 , that is, the extinction grooves 16 are arranged at the same center of the circle, and the diameter of the extinction groove 16 is smaller as it is closer to the optical axis. It should be noted that the co-center setting refers to each of the extinction grooves 16 on the first extinction surface 14 or each of the extinction grooves 16 on the second extinction surface 14 .

Each extinction slot 16 includes a first reflection surface 161 , and the first reflection surface 161 is used for multiple reflections of the light entering the extinction slot 16 from the object side end 11 . Specifically, the first reflecting surface 161 is a curved surface, and the cross-sectional shape of the reflecting surface of the extinction groove 16 is a partial elliptical shape, and the cross-section is a cross-section taken by a plane passing through the optical axis.

Among them, the long radius A of the partial elliptical shape, that is, half of the long axis, is 0.05mm-0.13mm; the short radius B, that is, half of the short axis, is 0.05mm-0.15mm, so that the extinction effect can be guaranteed, and It is beneficial to demoulding after processing.

The first reflection surface 161 of the extinction groove 16 of the lens barrel 10 can reflect the light incident from the object side end 11 multiple times, thereby reducing the intensity of the reflected light, so that the light reflected from the extinction groove 16 is even The lens entering the barrel has little effect on the final imaging, thereby improving the imaging quality of the lens, and realizing the super-black appearance effect of the surface of the object-side end 11 .

Referring to FIGS. 3 and 4 , a second embodiment of the present application provides a lens barrel 10. The lens barrel 10 in the second embodiment has substantially the same structure as the lens barrel 10 in the first embodiment, and the differences are:

The respective extinction grooves 16 are arranged in a circular array around the light-passing hole 13 . The extinction groove 16 includes a first reflection surface 161 and a second reflection surface 162 that intersect. The cross-sectional shape of the extinction groove 16 is an angular structure, and the cross-section is a cross-section taken with a plane passing through the optical axis.

The first reflective surface 161 intersects with the cross section to form a first truncated edge 163, the second reflective surface 162 intersects with the cross section to form a second truncated edge 164, the first reflective surface 161 is away from the optical axis relative to the second reflective surface 162, and the first truncated edge The length of 163 is greater than the length of the second truncated edge 164 .

The angle A between the first truncated edge 163 and the first axis 17 is 6°-25°, wherein the first axis 17 is a straight line parallel to the optical axis and passing through the intersection of the first truncated edge 163 and the second truncated edge 164 . In this way, the matting effect can be ensured, and the mold release after processing is facilitated.

The included angle B between the second truncated edge 164 and the first axis 17 is 6°-25°. In this way, the matting effect can be ensured and the mold release after processing is facilitated.

The maximum depth C of the extinction groove 16 in the direction of the first axis 17 is 0.05mm-0.13mm. In this way, the light incident from the object-side end 11 can be guaranteed to be reflected multiple times in the extinction groove 16 .

A plane portion 165 parallel to the first extinction surface 14 is provided between an extinction groove 16 close to the optical axis and the light through hole 13, and the distance between the plane portion 165 and the first extinction surface 14 in the axial direction is D, D<C , in this way, it is favorable for the light to enter into the extinction groove 16 and perform multiple reflections.

The first reflection surface 161 and the second reflection surface 162 of the extinction groove 16 of the lens barrel 10 can reflect the light incident from the object side end 11 multiple times, reducing the intensity of the reflected light, so that the extinction groove 16 Even if the internally reflected light enters the lens in the barrel, it has little effect on the final image, thereby improving the image quality of the lens, and realizing the super-black appearance effect of the surface of the object side end 11 .

Referring to FIGS. 5 and 6 , a third embodiment of the present application provides a lens barrel 10. The lens barrel 10 in the third embodiment and the lens barrel 10 in the second embodiment have substantially the same structure, except that:

The first reflective surface 161 is a curved surface bent toward the second reflective surface 162. It is understood that the first truncated edge 163 is a folded line; Understandably, the second truncated edge 164 is a broken line.

Specifically, the first reflective surface 161 includes a first surface 1611 and a second surface 1612 connected to each other, the first surface 1611 and the second surface 1612 form a bent surface, and the first surface 1611 is close to the extinction groove 16 relative to the second surface 1612 groove bottom.

The first truncated edge 163 includes a first line 1631 and a second line 1632 connected to each other, the first line 1631 and the second line 1632 form a broken line, the first line 1631 is the intersection of the first surface 1611 and the cross section, and the second line 1632 is the second surface The intersection of 1612 with the section.

The second reflecting surface 162 includes a connected third surface 1621 and a fourth surface 1622, the third surface 1621 and the fourth surface 1622 form a bending surface, and the third surface 1621 is closer to the groove of the extinction groove 16 than the fourth surface 1622 end.

The second truncated edge 164 includes connecting the third line 1641 and the fourth line 1642, the third line 1641 and the fourth line 1642 form a broken line, the third line 1641 is the intersection of the third surface 1621 and the cross section, and the fourth line 1642 is the fourth surface The intersection of 1622 and the cross section, the third line 1641 and the first line 1631 intersect at one point.

The angles between the first line 1631, the second line 1632, the third line 1641 and the fourth line 1642 and the first axis 17 are respectively A, B, C, D, and A, B, C, D are all 6°-25°, where C is greater than D and B is greater than A. In this way, it is favorable for the light to be reflected multiple times in the extinction groove 16 .

The maximum depth E of the extinction groove 16 in the axial direction is 0.05 mm-0.13 mm, so that the light can be reflected at least twice in the first extinction groove 16, and the mold release after processing can be ensured.

The first reflection surface 161 and the second reflection surface 162 of the extinction groove 16 of the lens barrel 10 are both curved surfaces, which can make the light incident from the object side end 11 reflect multiple times and reduce the intensity of the reflected light. Therefore, even if the light reflected from the extinction groove 16 enters the lens in the barrel, it has little effect on the final image, thereby improving the image quality of the lens, and realizing the super-black appearance effect of the surface of the object side end 11 .

Referring to FIGS. 7 and 8, a fourth embodiment of the present application provides a lens barrel 10. The lens barrel 10 in the fourth embodiment has substantially the same structure as the lens barrel 10 in the first embodiment, and the differences are:

The respective extinction grooves 16 are arranged in a circular array around the light-passing hole 13 . The extinction groove 16 includes a first reflection surface 161 , a second reflection surface 162 and a third reflection surface 166 which are disposed opposite to each other.

The first reflection surface 161 is disposed opposite to the second reflection surface 162 , and the first reflection surface 161 is close to the optical axis relative to the second reflection surface 162 . From the notch of the extinction groove 16 to the groove bottom direction of the extinction groove 16 , the distance between the first reflection surface 161 and the second reflection surface 162 gradually decreases.

The third reflection surface 166 is the groove bottom of the extinction groove 16 and is connected to the first reflection surface 161 and the second reflection surface 162 respectively. The third reflection surface 166 is inclined with respect to the optical axis and faces the optical axis. Specifically, the third reflection surface 166 is disposed in parallel with the first extinction surface 14 .

The first reflective surface 161 intersects the section to form a first truncated edge 163 , and the second reflective surface 162 intersects the section to form a second truncated edge 164 . An acute angle is formed between the first reflection surface 161 and the third reflection surface 166 , and an obtuse angle is formed between the second reflection surface 162 and the third reflection surface 166 .

The first reflective surface 161 intersects with the cross section to form a first truncated edge 163, the second reflective surface 162, the second reflective surface 162 intersects with the section to form a second truncated edge 164, and the third reflective surface 166 intersects with the section to form a third section Both ends of the edge 167 and the third truncated edge 167 are respectively connected with one end of the first truncated edge 163 and one end of the second truncated edge 164 .

The angle B between the first truncated edge 163 and the second axis 18 is 6°-25°, wherein the second axis 18 is a straight line parallel to the optical axis and passing through the intersection of the extension lines of the first truncated edge 163 and the second truncated edge 164 . In this way, the matting effect can be ensured, and the mold release after processing is facilitated.

The included angle C between the second truncated edge 164 and the second axis 18 is 6°-25. In this way, the matting effect can be ensured, and the mold release after processing is facilitated.

The distance D between the end of the second truncated edge 164 away from the third truncated edge 167 and the end of the third truncated edge 167 away from the second truncated edge 164 is 0.05mm-0.13mm. In this way, it can be ensured that the light is reflected multiple times in the extinction groove 16 to achieve the extinction effect.

The length E of the third truncated edge 167 is 0.02mm-0.05mm. In this way, it can be ensured that the light is reflected multiple times in the extinction groove 16 to achieve the extinction effect.

The included angle between the third truncated edge 167 and the second truncated edge 164 is 130°-180°. In this way, it can be ensured that the light is reflected multiple times in the extinction groove 16 to achieve the extinction effect.

The first reflecting surface 161, the second reflecting surface 162 and the third reflecting surface 166 of the extinction groove 16 of the lens barrel 10 can reflect the light incident from the object side end 11 multiple times, thereby reducing the intensity of the reflected light. Therefore, even if the light reflected from the extinction groove 16 enters the lens in the barrel, it has little effect on the final image, thereby improving the image quality of the lens, and realizing the super-black appearance effect of the surface of the object side end 11 .

Referring to FIGS. 9 and 10 , a fifth embodiment of the present application provides a lens barrel 10. The lens barrel 10 in the fifth embodiment and the lens barrel 10 in the fourth embodiment have substantially the same structure, except that:

The extinction groove 16 also includes a fourth reflecting surface 168 and a fifth reflecting surface 169 arranged oppositely. The fourth reflecting surface 168 and the fifth reflecting surface 169 are respectively connected between the first reflecting surface 161 and the second reflecting surface 162, and both It is connected to the third reflection surface 166, that is to say, the extinction groove 16 is surrounded by the third reflection surface 166, and the first reflection surface 161, the second reflection surface 162, the fourth reflection surface 161, the second reflection surface 162, and the third reflection surface 166. The reflection surface 168 and the fifth reflection surface 169 are formed. From the notch of the extinction groove 16 to the groove bottom direction of the extinction groove 16 , the distance between the fourth reflection surface 168 and the fifth reflection surface 169 gradually decreases.

An acute angle is formed between the first reflection surface 161 and the third reflection surface 166 , and an obtuse angle is formed between the second reflection surface 162 and the third reflection surface 166 .

The first reflection surface 161 , the second reflection surface 162 , the third reflection surface 166 , the fourth reflection surface 168 and the fifth reflection surface 169 of the extinction groove 16 of the lens barrel 10 can make the light incident from the object side end 11 more diffuse. The secondary reflection reduces the intensity of the reflected light, so that even if the light reflected from the extinction groove 16 enters the lens in the barrel, it has little effect on the final image, thereby improving the image quality of the lens, and can realize the object side The surface of the end 11 has a super black appearance effect.

Referring to FIGS. 11 and 12, a sixth embodiment of the present application provides a lens barrel 10. The lens barrel 10 in the sixth embodiment and the lens barrel 10 in the fourth embodiment have substantially the same structure, with the following differences:

The extinction groove 16 also includes a fourth reflecting surface 168 and a fifth reflecting surface 169 arranged oppositely. The fourth reflecting surface 168 and the fifth reflecting surface 169 are respectively connected between the first reflecting surface 161 and the second reflecting surface 162, and both It is connected to the third reflection surface 166, that is to say, the extinction groove 16 is surrounded by the third reflection surface 166, and the first reflection surface 161, the second reflection surface 162, the fourth reflection surface 161, the second reflection surface 162, and the third reflection surface 166. The reflection surface 168 and the fifth reflection surface 169 are formed. From the notch of the extinction groove 16 to the groove bottom direction of the extinction groove 16 , the distance between the fourth reflection surface 168 and the fifth reflection surface 169 gradually decreases. An acute angle is greater than the complement of an obtuse angle.

The included angle D between the first truncated edge 163 and the second axis 18 is 0°-20°. The included angle E between the second truncated edge 164 and the second axis 18 is 30°-60°. In this way, smooth demolding of the lens barrel 10 after processing can be ensured.

The maximum depth F of the extinction groove 16 in the direction of the second axis 18 is 0.03mm-0.10mm.

The first reflection surface 161 , the second reflection surface 162 , the third reflection surface 166 , the fourth reflection surface 168 and the fifth reflection surface 169 of the extinction groove 16 of the lens barrel 10 can make the light incident from the object side end 11 more diffuse. The secondary reflection reduces the intensity of the reflected light, so that even if the light reflected from the extinction groove 16 enters the lens in the barrel, it has little effect on the final image, thereby improving the image quality of the lens, and can realize the object side The surface of the end 11 has a super black appearance effect.

Referring to FIG. 13 , an embodiment of the present application provides a lens 100 including the lens barrel 10 in any of the above embodiments.

The above-mentioned lens 100 includes a lens barrel 10. The lens barrel 10 is provided with a plurality of extinction grooves 16 on the extinction surface of the object side end 11, and the reflection surface of each extinction groove 16 can make the light incident from the object side end 11. Multiple reflections are performed to reduce the intensity of the reflected light, so that even if the light reflected from the extinction groove 16 enters the lens in the cylinder, it has little effect on the final image, thereby improving the image quality of the lens, and can achieve The appearance effect of the surface of the object side end 11 is super black.

The embodiment of the present application proposes a camera module including the above pair of lenses 100 .

The above-mentioned camera module includes a lens barrel 10. The lens barrel 10 is provided with a plurality of extinction grooves 16 on the extinction surface of the object side end 11. The light is reflected multiple times to reduce the intensity of the reflected light, so that even if the light reflected from the extinction groove 16 enters the lens in the cylinder, it has little effect on the final imaging, thereby improving the imaging quality of the lens, and can The super-black appearance effect of the surface of the object-side end 11 is achieved.

Referring to FIG. 14 , an embodiment of the present application proposes an electronic device 200 including the above-mentioned camera module.

The above-mentioned electronic device 200 includes a lens barrel 10. The lens barrel 10 is provided with a plurality of extinction grooves 16 on the extinction surface of the object side end 11. The light is reflected multiple times to reduce the intensity of the reflected light, so that even if the light reflected from the extinction groove 16 enters the lens in the cylinder, it has little effect on the final imaging, thereby improving the imaging quality of the lens, and can The super-black appearance effect of the surface of the object-side end 11 is achieved.

The above embodiments are only used to illustrate the technical solutions of the present application rather than limitations. Although the present application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced. Neither should depart from the spirit and scope of the technical solutions of the present application. Those skilled in the art can also make other changes within the spirit of the present application, etc. to be used in the design of the present application, as long as they do not deviate from the technical effects of the present application. These changes made in accordance with the spirit of the present application should all be included within the scope of protection claimed in the present application.

Claims (21)

1. A lens barrel is characterized in that it comprises an object side end, an image side end and a light-passing hole passing through the object-side end and the image-side end, and the object-side end is provided with at least a an extinction surface, a plurality of extinction grooves are formed on the extinction surface, each of the extinction grooves includes at least one reflection surface, and the reflection surface is used for the light entering the extinction groove from the object side end Do multiple reflections.
2. The lens barrel of claim 1, wherein the extinction groove is an annular structure, the extinction groove includes a first reflection surface, and the first reflection surface is a curved surface.
3. The lens barrel according to claim 2, wherein the cross-sectional shape of the reflection surface of the extinction groove is a partial elliptical shape, and the cross-section is a cross-section taken by a plane passing through the optical axis, and the length of the partial elliptical shape is The radius is 0.05mm-0.13mm, and the short radius of the partial oval shape is 0.05mm-0.15mm.
4. The lens barrel of claim 1, wherein the extinction groove comprises a first reflection surface and a second reflection surface, and the first reflection surface and the second reflection surface cooperate with each other so that the object can be transmitted from the object The light entering the extinction groove from the side end is reflected multiple times between the two.
5. The lens barrel according to claim 1, wherein the extinction groove is an annular structure, the cross-sectional shape of the extinction groove is an angular structure, and the cross-section is a cross-section taken by a plane passing through the optical axis, and the first A reflective surface intersects with the cross section to form a first truncated edge, the second reflective surface intersects with the cross section to form a second truncated edge, and the first reflective surface is away from the optical axis relative to the second reflective surface, The length of the first truncated edge is greater than the length of the second truncated edge.
6. The lens barrel of claim 5, wherein the angle between the first truncated edge and the first axis and the angle between the second truncated edge and the first axis are both 6°-25°, wherein the first axis is a straight line parallel to the optical axis and passing through the intersection of the first truncated edge and the second truncated edge, and the extinction groove is in the direction of the first axis The maximum depth is 0.05mm-0.13mm.
7. The lens barrel according to any one of claims 4 to 6, wherein the first reflecting surface is a bending surface bent toward the second reflecting surface, and the second reflecting surface is a surface facing away from the The bending surface on which the second reflecting surface is bent.
8. The lens barrel according to claim 4, wherein the extinction groove further comprises a third reflection surface, the first reflection surface and the second reflection surface are disposed opposite to each other, and the first reflection surface is opposite to the second reflection surface. The second reflection surface is far away from the optical axis, and the third reflection surface is the groove bottom of the extinction groove, and is respectively connected to the first reflection surface and the second reflection surface.
9. The lens barrel according to claim 8, wherein the distance between the first reflection surface and the second reflection surface gradually increases from the notch of the extinction groove to the groove bottom direction of the extinction groove decrease.
10. The lens barrel of claim 8, wherein the third reflection surface is inclined with respect to the optical axis and faces the optical axis.
11. The lens barrel according to claim 8, wherein the first reflective surface intersects with the cross section to form a first truncated edge, the cross section is the plane where the optical axis is located, and the second reflective surface intersects the cross section A second truncated edge is formed, the third reflective surface intersects with the section to form a third section, the angle between the first truncated edge and the second axis, and the second truncated edge and the second The included angles between the axes are all 6°-25°, the second axis is a straight line parallel to the optical axis and passing through the intersection of the extension lines of the first truncated edge and the second truncated edge, the second truncated edge The distance between one end of the edge away from the third truncated edge and the end of the third truncated edge away from the second truncated edge is 0.05mm-0.13mm, the length of the third truncated edge is 0.02mm-0.05mm, and the The included angle between the third truncated edge and the second truncated edge is 130°-180°.
12. The lens barrel according to any one of claims 8 to 11, wherein the extinction groove is an annular structure.
13. The lens barrel according to any one of claims 8 to 11, wherein the extinction groove further comprises a fourth reflection surface and a fifth reflection surface arranged oppositely, the fourth reflection surface and the fifth reflection surface The surfaces are respectively connected between the first reflecting surface and the second reflecting surface, and both are connected with the third reflecting surface.
14. The lens barrel according to claim 13, wherein the included angle between the first reflection surface and the third reflection surface is an acute angle, and the angle between the second reflection surface and the third reflection surface is an acute angle. The included angle is an obtuse angle.
15. 15. The lens barrel of claim 14, wherein the acute angle is greater than a supplementary angle of the obtuse angle.
16. The lens barrel according to claim 15, wherein the angle between the first truncated edge and the second axis is 0°-20°, and the angle between the second truncated edge and the second axis is 0°-20°. The angle is 30°-60°, and the maximum depth of the extinction groove in the direction of the second axis is 0.03mm-0.10mm.
17. The lens barrel according to claim 13, wherein the distance between the fourth reflection surface and the fifth reflection surface gradually increases from the notch of the extinction groove to the groove bottom direction of the extinction groove decrease.
18. The lens barrel of claim 1, wherein the object-side end is provided with a first extinction surface and a second extinction surface disposed around the light-passing hole, and the first extinction surface is relative to the optical axis Inclined and facing the optical axis, the second extinction surface is located outside the first extinction surface, and is perpendicular to the optical axis, and the extinction groove is provided on the first extinction surface and the second extinction surface at least one of the matte surfaces.
19. A lens, characterized by comprising the lens barrel according to any one of claims 1 to 18.
20. A camera module, characterized by comprising the lens according to claim 19 .
21. An electronic device, comprising the camera module according to claim 20 .

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