CN223815457U - Lenses, camera modules and terminals - Google Patents
Lenses, camera modules and terminalsInfo
- Publication number
- CN223815457U CN223815457U CN202520334187.2U CN202520334187U CN223815457U CN 223815457 U CN223815457 U CN 223815457U CN 202520334187 U CN202520334187 U CN 202520334187U CN 223815457 U CN223815457 U CN 223815457U
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- lens
- elastic ring
- ring
- lenses
- optical axis
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Abstract
本申请涉及镜头技术领域，具体公开一种镜头、摄像头模组及终端。镜头包括：镜筒，开设有沿光轴的方向延伸的通光孔；多个镜片，设置于通光孔内；锁附环，设置于通光孔内且与镜筒的物侧和/或像侧螺纹连接；隔环，设置于通光孔内且设置于相邻的两个镜片之间；弹性环，设置于通光孔内，弹性环为圆环形，弹性环的泊松比为0.4~0.5，弹性环设置于相邻的两个镜片之间，或者，弹性环设置于锁附环和与锁附环相邻设置的镜片之间，或者，弹性环设置于隔环和与隔环相邻设置的镜片之间。本申请的镜头，通过设置弹性环，实现对镜头的场曲的调整，使镜头的场曲保持一致性。
This application relates to the field of lens technology, specifically disclosing a lens, a camera module, and a terminal. The lens includes: a lens barrel with a light-transmitting aperture extending along the optical axis; multiple lens elements disposed within the light-transmitting aperture; a locking ring disposed within the light-transmitting aperture and threadedly connected to the object side and/or image side of the lens barrel; a spacer ring disposed within the light-transmitting aperture and between two adjacent lens elements; and an elastic ring disposed within the light-transmitting aperture. The elastic ring is annular and has a Poisson's ratio of 0.4 to 0.5. The elastic ring is disposed between two adjacent lens elements, or between the locking ring and a lens adjacent to the locking ring, or between the spacer ring and a lens adjacent to the spacer ring. The lens of this application, by incorporating the elastic ring, achieves adjustment of the field curvature of the lens, ensuring consistent field curvature.
Description
Technical Field
The application relates to the technical field of lenses, in particular to a lens, a camera module and a terminal.
Background
When the lens is assembled, as the number of lenses in the lens is increased, the accumulated tolerance of parts is increased, the variable is increased, the influence on the yield of the lens after assembly is larger, the consistency of field curves after the lens assembly of the same batch is poor, and the field curve difference of the lens assembly of different batches is large.
Disclosure of utility model
In view of the foregoing, it is necessary to provide a lens, a camera module and a terminal, which can adjust the curvature of field of the lens to maintain the consistency of curvature of field of the lens.
In a first aspect, an embodiment of the present application provides a lens, including:
a lens barrel provided with a light-transmitting hole extending in the direction of the optical axis;
a plurality of lenses arranged in the light-passing holes;
The locking ring is arranged in the light transmission hole and is in threaded connection with the object side and/or the image side of the lens barrel;
the spacer ring is arranged in the light passing hole and between two adjacent lenses;
The elastic ring is arranged in the light passing hole, the elastic ring is in a circular ring shape, the Poisson ratio of the elastic ring is 0.4-0.5, the elastic ring is arranged between two adjacent lenses, or the elastic ring is arranged between the locking ring and the lenses arranged adjacent to the locking ring, or the elastic ring is arranged between the spacing ring and the lenses arranged adjacent to the spacing ring.
According to the lens, the elastic ring is arranged, when the field curvature of the lens is larger or smaller, the locking ring is rotated to control all parts on the object side or the image side of the elastic ring, such as the lens and the spacing ring, to move along the direction of the optical axis, so that the air gap between adjacent lenses is adjusted, the effect of adjusting the field curvature is achieved, the field curvature of the lens is adjusted, and the field curvature of the lens is kept consistent. In addition, the elastic ring can provide pre-pressure for the lens, so that the lens is prevented from loosening, the assembly stability of the lens is ensured, the locking force of the locking ring can be prevented from being transmitted to the lens which is easy to crack, the lens is prevented from cracking, the stability of the lens is ensured, the friction force between the elastic ring and adjacent parts such as the lens, the locking ring and the spacing ring can be increased, vibration in the process of transporting and using the lens is reduced, the radial movement of the parts is reduced, the optical effect of the lens is influenced, the elastic ring can play a role of buffering between the two adjacent lenses, direct contact between the lenses is avoided, the ink coating on the lens is prevented from cracking, and when a gap is generated in the lens, the elastic ring pushes other parts to move to block the gap through self deformation, so that a relatively airtight space is formed, and the waterproof and dustproof effects of the lens are improved. By rationally configuring the poisson's ratio of the elastomeric ring, in the first aspect, the elastomeric ring is made to provide reasonable pre-compression to the components, and in the second aspect, fracturing of the lens is avoided.
In one embodiment, at least one of the object side and the image side of the elastic ring is provided with a notch recessed along the direction of the optical axis.
According to the lens, the grooves recessed along the direction of the optical axis are formed in at least one of the object side and the image side of the elastic ring, and the elastic ring can achieve the effects of water vapor dissipation, gas circulation and the like through the grooves.
In one embodiment, when the object side and the image side of the elastic ring are both provided with the cutting grooves, the cutting grooves are arranged on the elastic ring at intervals around the direction of the optical axis.
According to the lens, the object side and the image side of the elastic ring are limited to form the cutting grooves at intervals, and the elasticity and the structural strength of the elastic ring are guaranteed.
In one embodiment, a distance between a groove bottom of the groove formed on the object side or the image side of the elastic ring and the image side or the object side of the elastic ring along the direction of the optical axis is greater than or equal to 0.05mm.
According to the lens, the distance between the groove bottom of the limiting groove and the image side or the object side is more than or equal to 0.05mm, so that the structural strength of the elastic ring is ensured.
In one embodiment, the outer peripheral side of the elastic ring is provided with a side groove recessed in a direction perpendicular to the optical axis.
According to the lens, the side grooves recessed along the direction perpendicular to the optical axis are formed in the outer peripheral side of the elastic ring, and the elastic ring can achieve the effects of water vapor dissipation, gas circulation and the like through the side grooves.
In one embodiment, a distance between a bottom of the side groove and an inner circumferential side of the elastic ring in a direction perpendicular to the optical axis is 0.05mm or more.
According to the lens, the distance from the bottom of the limiting side groove to the inner peripheral side is greater than or equal to 0.05mm, so that the structural strength of the elastic ring is ensured.
In one embodiment, a supporting portion is disposed in the light passing hole, one of the lenses is abutted to an object side or an image side of the supporting portion, and/or two adjacent lenses are respectively abutted to the object side and the image side of the supporting portion, and the number of the elastic rings is two, wherein one of the elastic rings is disposed between the supporting portion and the lens disposed adjacent to the supporting portion.
According to the lens, one elastic ring is limited to be arranged between the bearing part and the lens adjacent to the bearing part, so that the lens is prevented from being directly connected with the bearing part, and the lens is prevented from being broken.
In one embodiment, the cross section of the elastic ring along the direction of the optical axis and passing through the geometric center is circular, semicircular, elliptical or polygonal in shape.
According to the lens, the shape of the cross section of the elastic ring is limited, and the surfaces on the two sides of the elastic ring along the direction of the optical axis can be in plane contact with the corresponding lens, the locking ring and the spacing ring after the elastic ring is compressed, so that the stress of the lens is uniform.
In a second aspect, an embodiment of the present application further provides a camera module, including a housing, a photosensitive chip, and a lens according to any one of the above technical solutions, where the photosensitive chip is installed in the housing, the housing is provided with an installation hole, the lens is installed in the installation hole, and the lens and the photosensitive chip are coaxially disposed along a direction of an optical axis.
According to the camera module, the elastic ring is arranged, when the field curvature of the lens is larger or smaller, the locking ring is rotated to control all parts on the object side or the image side of the elastic ring, such as the lens and the spacing ring, to move along the direction of the optical axis, so that the air gap between the adjacent lenses is adjusted, the effect of adjusting the field curvature is achieved, the field curvature of the lens is adjusted, and the field curvature of the lens is kept consistent. In addition, the elastic ring can provide pre-pressure for the lens, so that the lens is prevented from loosening, the assembly stability of the lens is ensured, the locking force of the locking ring can be prevented from being transmitted to the lens which is easy to crack, the lens is prevented from cracking, the stability of the lens is ensured, the friction force between the elastic ring and adjacent parts such as the lens, the locking ring and the spacing ring can be increased, vibration in the process of transporting and using the lens is reduced, the radial movement of the parts is reduced, the optical effect of the lens is influenced, the elastic ring can play a role of buffering between the two adjacent lenses, direct contact between the lenses is avoided, the ink coating on the lens is prevented from cracking, and when a gap is generated in the lens, the elastic ring pushes other parts to move to block the gap through self deformation, so that a relatively airtight space is formed, and the waterproof and dustproof effects of the lens are improved. By rationally configuring the poisson's ratio of the elastomeric ring, in the first aspect, the elastomeric ring is made to provide reasonable pre-compression to the components, and in the second aspect, fracturing of the lens is avoided.
In a third aspect, an embodiment of the present application further provides a terminal, including a camera module set according to the above technical scheme.
According to the terminal, in the lens of the camera module, the elastic ring is arranged, when the field curvature of the lens is larger or smaller, the locking ring is rotated to control all parts such as the lens and the spacing ring on the object side or the image side of the elastic ring to move along the direction of the optical axis, so that the air gap between the adjacent lenses is adjusted, the effect of adjusting the field curvature is achieved, the field curvature of the lens is adjusted, and the field curvature of the lens is kept consistent. In addition, the elastic ring can provide pre-pressure for the lens, so that the lens is prevented from loosening, the assembly stability of the lens is ensured, the locking force of the locking ring can be prevented from being transmitted to the lens which is easy to crack, the lens is prevented from cracking, the stability of the lens is ensured, the friction force between the elastic ring and adjacent parts such as the lens, the locking ring and the spacing ring can be increased, vibration in the process of transporting and using the lens is reduced, the radial movement of the parts is reduced, the optical effect of the lens is influenced, the elastic ring can play a role of buffering between the two adjacent lenses, direct contact between the lenses is avoided, the ink coating on the lens is prevented from cracking, and when a gap is generated in the lens, the elastic ring pushes other parts to move to block the gap through self deformation, so that a relatively airtight space is formed, and the waterproof and dustproof effects of the lens are improved. By rationally configuring the poisson's ratio of the elastomeric ring, in the first aspect, the elastomeric ring is made to provide reasonable pre-compression to the components, and in the second aspect, fracturing of the lens is avoided.
Drawings
Fig. 1 is a schematic cross-sectional view of a lens barrel along an optical axis according to a first embodiment of the present application.
Fig. 2 is a schematic structural view of an elastic ring in the lens shown in fig. 1.
Fig. 3 is a schematic cross-sectional view of a lens barrel along an optical axis according to a second embodiment of the present application.
Fig. 4 is a schematic structural view of an elastic ring in the lens shown in fig. 2.
Fig. 5 is a schematic cross-sectional view of a lens barrel according to a third embodiment of the present application along an optical axis.
Fig. 6 is a schematic structural view of an elastic ring in the lens shown in fig. 3.
Fig. 7 is a schematic cross-sectional view of a lens barrel according to a fourth embodiment of the present application along an optical axis.
Fig. 8 is a schematic cross-sectional view of a lens barrel according to a fifth embodiment of the present application along an optical axis.
Fig. 9 is a schematic cross-sectional view of a lens barrel according to a sixth embodiment of the present application along an optical axis.
The main reference numerals indicate lenses 1, 2, 3, 4, 5, 6, a lens barrel 10, a light-transmitting hole 11, a bearing portion 12, a lens 20, a locking ring 30, a spacer ring 40, an elastic ring 50, a notch 51, a side groove 52, a filter 60, and an optical axis 70.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it should be understood that the terms "orientation" or "positional relationship" as used herein are merely for convenience of description and to simplify the description of the present application, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, it is to be noted that the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, unless explicitly stated and limited otherwise, the term "connected" shall be interpreted as broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, or communicable with each other, directly connected, indirectly connected through an intermediary, or connected internally of two elements or the interaction relationship of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present application provides a lens 1. The lens 1 includes a barrel 10, a plurality of lenses 20, a locking ring 30, a spacer ring 40, and an elastic ring 50. The lens 1 has an object side and an image side, wherein the object side is understood as a side where an object to be imaged is located, and the image side is understood as a side where an image of the object to be imaged is located.
The lens barrel 10 is provided with a light-transmitting hole 11 extending along the direction of the optical axis 70, the inner side of the lens barrel 10 extends towards the direction of the light-transmitting hole 11 and is provided with a bearing part 12, the bearing part 12 protrudes from the inner wall of the lens barrel 10 along the direction perpendicular to the optical axis 70, in this embodiment, the bearing part 12 is located at the object side of the light-transmitting hole 11, and the bearing part 12 is used for abutting against the bearing lens 20. Wherein, the inner wall of the lens barrel 10 is provided with an internal thread near the image side.
The lenses 20 are disposed in the light-passing holes 11. In the present embodiment, the number of the lenses 20 is five, the five lenses 20 are respectively disposed at intervals, and the object side of the lenses 20 located at the object side among the five lenses 20 is abutted against the image side of the bearing portion 12.
The locking ring 30 is disposed in the light-transmitting hole 11 and is screwed to the object side and/or the image side of the lens barrel 10. In the present embodiment, the external thread is provided on the outer side of the lock ring 30, and the lock ring 30 is screwed to the image side of the lens barrel 10 by the engagement of the external thread of the lock ring 30 with the internal thread of the lens barrel 10.
The spacer ring 40 is disposed in the light-passing hole 11 and between two adjacent lenses 20. In the present embodiment, the number of the spacer rings 40 is four, and the four spacer rings 40 are respectively disposed in the five lenses 20, which can also be understood that each spacer ring 40 is disposed between two adjacent lenses 20. The thickness of the spacer ring 40 along the direction of the optical axis 70 may be set according to practical needs, which is not particularly limited in the embodiment of the present application. It will be appreciated that the bearing 12 may also correspond to a spacer ring 40.
The elastic ring 50 is disposed in the light-passing hole 11, the elastic ring 50 is in a circular ring shape, the elastic ring 50 has elasticity, the elastic ring 50 can be elastically compressed along the direction of the optical axis 70, that is, the elastic ring 50 can be compressed to generate pre-compression force, and the elastic ring 50 can be elastically restored after the compression force is removed. The elastic ring 50 is disposed between two adjacent lenses 20, or the elastic ring 50 is disposed between the locking ring 30 and the lens 20 disposed adjacent to the locking ring 30, or the elastic ring 50 is disposed between the spacer ring 40 and the lens 20 disposed adjacent to the spacer ring 40. In the present embodiment, the elastic ring 50 is disposed between the middle lens 20 and the spacer ring 40 disposed adjacent to the object side of the middle lens 20.
In the lens 1 of the present embodiment, by arranging the elastic ring 50 between the spacer ring 40 and the lens 20, when the field curvature of the lens 1 is larger or smaller, by rotating the locking ring 30, each component on the object side or the image side of the elastic ring 50, such as the lens 20 and the spacer ring 40, is controlled to move along the direction of the optical axis 70, so as to adjust the air gap between the adjacent lenses 20, thereby achieving the effect of adjusting the field curvature, and realizing the adjustment of the field curvature of the lens 1, so that the field curvature of the lens 1 is kept consistent. In addition, through the arrangement of the elastic ring 50, the elastic ring 50 can also provide pre-stress for the lens 20, so that the looseness of the lens 20 is avoided, the assembly stability of the lens 1 is ensured, through the arrangement of the elastic ring 50, the locking force of the locking ring 30 can be prevented from being transmitted to the lens 20 which is easy to crack, the lens 20 is prevented from cracking, the stability of the lens 1 is ensured, and through the arrangement of the elastic ring 50, the friction force between the elastic ring 50 and adjacent parts such as the lens 20 and the spacer ring 40 can be increased, the vibration of the lens 1 in the transportation and use processes is reduced, and the radial movement of the parts is reduced, so that the optical effect of the lens 1 is influenced.
In this embodiment, the poisson ratio of the elastic ring 50 is 0.4 to 0.5, for example, 0.4, 0.41, 0.42, 0.43, 0.44, 0.45, 0.46, 0.47, 0.48, 0.49, 0.5, etc. The material of the elastic ring 50 may be rubber, silica gel, glue, latex, polyurethane elastomer, or other elastic materials. Thus, by reasonably configuring the poisson's ratio of the elastomeric ring 50, in a first aspect, the elastomeric ring 50 is caused to provide a reasonable pre-compression of the components, and in a second aspect, the lens 20 is prevented from fracturing. However, when the Poisson's ratio of the elastic ring 50 is less than 0.4, the elastic ring 50 is hard and easily cracks the lens 20, and when the Poisson's ratio of the elastic ring 50 is greater than 0.5, the elastic ring 50 is radially deformed more when compressed, resulting in insufficient elasticity of the elastic ring 50 and an inability to effectively provide reasonable pre-compression force to each component.
Referring to fig. 2, in the present embodiment, two slots 51 recessed along the direction of the optical axis 70 are formed on the object side and the image side of the elastic ring 50, and four slots 51 are disposed on the elastic ring 50 at intervals around the direction of the optical axis 70. The object side and the image side of the elastic ring 50 can also be understood as the object side and the image side of the elastic ring 50. Thus, by opening the slit 51 on the object side and the image side of the elastic ring 50, the elastic ring 50 can achieve the effects of moisture dissipation, gas circulation, and the like through the slit 51. In addition, by providing the slit 51 on both the object side and the image side of the elastic ring 50, the elasticity and the structural strength of the elastic ring 50 are ensured. It will be appreciated that in other embodiments, the slits 51 may be formed only on the object side or the image side of the elastic ring 50, and the number of slits 51 may be one, two, three, four or more.
In the present embodiment, the bottom of the slot 51 is a plane, and the distance between the bottom of the slot 51 opened on the object side or the image side of the elastic ring 50 and the image side or the object side of the elastic ring 50 along the direction of the optical axis 70 is greater than or equal to 0.05mm, for example, 0.05mm, 0.06 mm, 0.07mm, 0.08 mm, 0.09 mm, 1 mm, and the like. In this way, by defining the distance between the bottom of the slit 51 and the image side or the object side to be equal to or greater than 0.05mm, the structural strength of the elastic ring 50 is ensured.
It is understood that in other embodiments, the bottom of the slot 51 may be curved, serrated, wavy, etc., and the minimum distance between the bottom of the slot 51 and the corresponding image side or object side is greater than or equal to 0.05mm.
In this embodiment, the cross section of the elastic ring 50 along the direction of the optical axis 70 and passing through the geometric center is circular and semicircular in shape. In this way, by defining the shape of the cross section of the elastic ring 50, the surfaces on both sides of the elastic ring 50 in the direction of the optical axis 70 after being compressed can be in planar contact with the corresponding lens 20 and the spacer ring 40, so that the stress of the lens 20 is uniform.
It will be appreciated that in other embodiments, the cross-section of the elastic ring 50 along the direction of the optical axis 70 and through the geometric center may also be elliptical or polygonal in shape, such as quadrilateral, hexagonal, octagonal, etc.
In this embodiment, the lens 1 further includes an optical filter 60. The optical filter 60 is disposed on a side of the locking ring 30 facing away from the plurality of lenses 20. Thus, by providing the above-mentioned optical filter 60, the lens 1 has an optical filtering function, and the photographing performance of the lens 1 is improved.
Referring to fig. 3, a lens 2 is provided according to a second embodiment of the present application. The lens 2 according to the second embodiment is substantially similar to the lens 1 according to the first embodiment, except that in the present embodiment, the number of lenses 20 is four, and two lenses 20 in the middle are connected together. The bearing portion 12 of the lens barrel 10 is located inside the light-passing hole 11, and the bearing portion 12 abuts against and is supported between the two lenses 20 on the object side. The number of the locking rings 30 is two, and the two locking rings 30 are respectively screwed on the object side and the image side of the lens barrel 10. The number of the spacing rings 40 is one, and the spacing rings 40 are arranged between the two lenses 20 on the image side. The elastic ring 50 is provided between the image side of the bearing portion 12 and the lens 20 that abuts against the image side of the bearing portion 12. The filter 60 is disposed on the image-side locking ring 30. In this embodiment, the bearing portion 12 may also correspond to one spacer ring 40.
By arranging the elastic ring 50 between the bearing part 12 and the lens 20 adjacent to the bearing part 12, the lens 20 is prevented from being directly connected with the bearing part 12, so that the situation that the lens 20 is broken is avoided, by arranging the elastic ring 50, when the field curvature of the lens 2 is bigger or smaller, the locking ring 30 is rotated to control each part on the object side or the image side of the elastic ring 50, such as the lens 20 and the spacing ring 40, to move along the direction of the optical axis 70, so that the air gap between the adjacent lenses 20 is adjusted, the effect of adjusting the field curvature is achieved, the field curvature of the lens 2 is adjusted, and the field curvature of the lens 2 is kept consistent. In addition, through the arrangement of the elastic ring 50, the elastic ring 50 can also provide pre-stress for the lens 20, so that the looseness of the lens 20 is avoided, the assembly stability of the lens 2 is ensured, through the arrangement of the elastic ring 50, the locking force of the locking ring 30 can be prevented from being transmitted to the lens 20 which is easy to crack, the lens 20 is prevented from cracking, the stability of the lens 2 is ensured, and through the arrangement of the elastic ring 50, the friction force between the elastic ring 50 and adjacent parts such as the lens 20 and the spacer ring 40 can be increased, the vibration of the lens 2 in the transportation and use processes is reduced, and the radial movement of the parts is reduced, so that the optical effect of the lens 2 is influenced.
Referring to fig. 4, in the present embodiment, four side grooves 52 recessed in a direction perpendicular to the optical axis 70 are formed on the outer peripheral side of the elastic ring 50, and the four side grooves 52 are disposed at equal intervals. The outer circumferential side of the elastic ring 50 can be understood as the outer circumferential side of the elastic ring 50. Thus, by providing the side groove 52 on the outer peripheral side of the elastic ring 50, the elastic ring 50 can achieve the effects of water vapor dissipation, gas circulation, and the like through the side groove 52.
In this embodiment, the bottom of the side groove 52 is a plane. The distance between the bottom of the side groove 52 and the inner peripheral side of the elastic ring 50 in the direction perpendicular to the optical axis 70 is 0.05mm or more. The inner peripheral side of the elastic ring 50 can be understood as the inner peripheral side of the elastic ring 50. For example 0.05mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 1mm, etc. Thus, by defining the distance between the bottom of the side groove 52 and the inner peripheral side to be 0.05mm or more, the structural strength of the elastic ring 50 is ensured.
It will be appreciated that in other embodiments, the bottom of the side groove 52 may be curved, serrated, wavy, etc., with a minimum distance between the bottom of the side groove 52 and the inner peripheral side of 0.05mm or more.
Referring to fig. 5, a third embodiment of the present application provides a lens 3. The lens 3 according to the third embodiment is substantially similar to the lens 2 according to the second embodiment in that the elastic ring 50 is disposed between the image-side locking ring 30 and the lens 20 adjacent to the image-side locking ring 30. Referring to fig. 6, in the present embodiment, the elastic ring 50 has a circular shape. Thus, by arranging the elastic ring 50 between the locking ring 30 and the lens 20, when the field curvature of the lens 3 is larger or smaller, by rotating the locking ring 30, the components on the object side or the image side of the elastic ring 50, such as the lens 20 and the spacer ring 40, are controlled to move along the direction of the optical axis 70, so that the air gap between the adjacent lenses 20 is adjusted, the effect of adjusting the field curvature is achieved, the adjustment of the field curvature of the lens 3 is achieved, and the field curvature of the lens 3 is kept consistent. In addition, through the arrangement of the elastic ring 50, the elastic ring 50 can also provide pre-stress for the lens 20, so that the looseness of the lens 20 is avoided, the assembly stability of the lens 3 is ensured, through the arrangement of the elastic ring 50, the locking force of the locking ring 30 can be prevented from being transmitted to the lens 20 which is easy to crack, the lens 20 is prevented from cracking, the stability of the lens 3 is ensured, through the arrangement of the elastic ring 50, the friction force between the elastic ring 50 and adjacent parts such as the lens 20 and the spacer ring 40 can be increased, the vibration of the lens 3 in the transportation and use process is reduced, the radial movement of the parts is reduced, the optical effect of the lens 3 is influenced, and through the arrangement of the elastic ring 50, when a gap is generated on the image side of the lens 3, the elastic ring 50 pushes other parts to move to block the gap through self deformation, so that a relatively airtight space is formed, and the waterproof and dustproof effects of the lens 3 are improved.
Referring to fig. 7, a fourth embodiment of the present application provides a lens 4. The lens 4 according to the fourth embodiment is substantially similar to the lens 2 according to the second embodiment, except that in the present embodiment, the elastic ring 50 is located between the object side of the spacer ring 40 and the lens 20 adjacent to the object side of the spacer ring 40.
Thus, by arranging the elastic ring 50 between the spacer ring 40 and the lens 20, when the field curvature of the lens 4 is larger or smaller, the locking ring 30 is rotated to control each component on the object side or the image side of the elastic ring 50, such as the lens 20 and the spacer ring 40, to move along the direction of the optical axis 70, so as to adjust the air gap between the adjacent lenses 20, thereby achieving the effect of adjusting the field curvature, realizing the adjustment of the field curvature of the lens 4, and keeping the field curvature of the lens 4 consistent. In addition, through the arrangement of the elastic ring 50, the elastic ring 50 can also provide pre-stress for the lens 20, so that the looseness of the lens 20 is avoided, the assembly stability of the lens 4 is ensured, through the arrangement of the elastic ring 50, the locking force of the locking ring 30 can be prevented from being transmitted to the lens 20 which is easy to crack, the lens 20 is prevented from cracking, the stability of the lens 4 is ensured, and through the arrangement of the elastic ring 50, the friction force between the elastic ring 50 and adjacent parts such as the lens 20 and the spacer ring 40 can be increased, the vibration of the lens 4 in the transportation and use processes is reduced, and the radial movement of the parts is reduced, so that the optical effect of the lens 4 is influenced.
Referring to fig. 8, a fifth embodiment of the present application provides a lens 5. The lens 5 according to the fifth embodiment is substantially similar to the lens 1 according to the first embodiment, and is different in that, in the present embodiment, the bearing portion 12 of the lens barrel 10 is located at the image side, the two lenses 20 at the object side are connected together, the number of the spacer rings 40 is three, and the three spacer rings 40 are disposed between the four lenses 20 at the image side. The locking ring 30 has an internal thread, the object side of the lens barrel 10 has an external thread, and the locking ring 30 is in threaded connection with the object side of the lens barrel 10. The elastic ring 50 is disposed between the two lenses 20 on the object side. Wherein, be provided with the coating on two lenses 20 of thing side, through setting up elastic ring 50 between two lenses 20 that have the coating, avoid direct contact between two lenses 20, avoid the coating on the lens 20 to break, guarantee the normal use of camera lens 5. Thus, by providing the elastomeric ring 50 between the lenses 20, the elastomeric ring 50 also serves as a buffer between two adjacent lenses 20, avoiding direct contact between the lenses 20, and avoiding cracking of the ink coating on the lenses 20.
Referring to fig. 9, a sixth embodiment of the present application provides a lens 6. The lens 6 according to the sixth embodiment is substantially similar to the lens 1 according to the first embodiment in that the number of elastic rings 50 is two, one elastic ring 50 is disposed between the lens 20 on the object side and the bearing portion 12, and the other elastic ring 50 is disposed between the object side of the middle lens 20 and the spacer ring 40 adjacent to the object side of the middle lens 20.
In this way, by arranging the elastic ring 50 between the spacer ring 40 and the lens 20 and between the lens 20 and the bearing portion 12, when the curvature of field of the lens 6 is larger or smaller, by rotating the locking ring 30, each component on the object side or the image side of the elastic ring 50, such as the lens 20 and the spacer ring 40, is controlled to move along the direction of the optical axis 70, so as to adjust the air gap between the adjacent lenses 20, thereby achieving the effect of adjusting the curvature of field, realizing the adjustment of the curvature of field of the lens 6, and keeping the curvature of field of the lens 6 consistent. In addition, through the arrangement of the elastic ring 50, the elastic ring 50 can also provide pre-stress for the lens 20, so that the looseness of the lens 20 is avoided, the assembly stability of the lens 6 is ensured, through the arrangement of the elastic ring 50, the locking force of the locking ring 30 can be prevented from being transmitted to the lens 20 which is easy to crack, the lens 20 is prevented from cracking, the stability of the lens 6 is ensured, through the arrangement of the elastic ring 50, the friction force between the elastic ring 50 and adjacent parts such as the lens 20 and the spacer ring 40 can be increased, the vibration of the lens 6 in the transportation and use processes is reduced, the radial movement of the parts is reduced, the optical effect of the lens 6 is influenced, through the arrangement of the elastic ring 50, the elastic ring 50 can also play a buffering role between the two adjacent lenses 20, the direct contact between the lenses 20 is avoided, the ink coating on the lenses 20 is prevented from cracking, through the arrangement of the elastic ring 50, when gaps are generated in the lens 6, the elastic ring 50 pushes other parts to move to block the gaps through deformation of the elastic ring 50, so that a relatively airtight space is formed, when gaps are generated on the object side of the lens 6, the lens 6 is lifted, the dustproof effect of the lens 6 moves to push the other parts to move to the other parts to block the waterproof space, so that the relatively airtight effect is formed.
A seventh embodiment of the present application provides a camera module (not shown). The camera module of the present embodiment includes the lens according to any one of the first to sixth embodiments, the present embodiment is described with reference to the lens 1 of the first embodiment, the camera module of the present embodiment includes a housing (not shown), a photosensitive chip (not shown) and a lens 1, the photosensitive chip is mounted in the housing, a mounting hole (not shown) is provided in the housing, the lens 1 is mounted in the mounting hole, and the lens 1 and the photosensitive chip are coaxially disposed along the direction of the optical axis 70. The photosensitive chip is used for receiving the optical signal passing through the lens 1 and converting the optical signal into an electrical signal for imaging.
In this way, in the above-mentioned camera module, in the lens 1, by arranging the elastic ring 50, when the field curvature of the lens 1 is larger or smaller, by rotating the locking ring 30, each component on the object side or the image side of the elastic ring 50, such as the lens 20 and the spacer ring 40, is controlled to move along the direction of the optical axis 70, so as to adjust the air gap between the adjacent lenses 20, thereby achieving the effect of adjusting the field curvature, realizing the adjustment of the field curvature of the lens 1, and keeping the field curvature of the lens 1 consistent. In addition, through the arrangement of the elastic ring 50, the elastic ring 50 can also provide pre-stress for the lens 20, so that the looseness of the lens 20 is avoided, the assembly stability of the lens 1 is ensured, through the arrangement of the elastic ring 50, the locking force of the locking ring 30 can be prevented from being transmitted to the lens 20 which is easy to crack, the lens 20 is prevented from cracking, the stability of the lens 1 is ensured, through the arrangement of the elastic ring 50, the friction force between the elastic ring 50 and adjacent parts such as the lens 20, the locking ring 30 and the spacing ring 40 can be increased, the vibration of the lens 1 in the transportation and use processes is reduced, the radial movement of the parts is reduced, the optical effect of the lens 1 is influenced, through the arrangement of the elastic ring 50, the elastic ring 50 can also play a buffering role between the two adjacent lenses 20, the direct contact between the lenses 20 is avoided, the ink coating on the lenses 20 is prevented from cracking, and through the arrangement of the elastic ring 50, when gaps are generated in the lens 1, the elastic ring 50 pushes other parts to move to block the gaps through self deformation, so that a relatively airtight space is formed, and the dustproof effect of the lens 1 is improved. By reasonably configuring the poisson's ratio of the elastomeric ring 50, in a first aspect, the elastomeric ring 50 is caused to provide reasonable pre-compression of the components, and in a second aspect, the lens 20 is prevented from fracturing.
The eighth embodiment of the present application also provides a terminal (not shown). The terminal of the present embodiment includes the camera module described in the seventh embodiment, and the terminal of the present embodiment may be an automobile, and the camera module may be a vision sensor. It will be appreciated that in other embodiments, the terminal may be a vehicle-mounted recorder, a security monitoring device, an AR device, a VR device, a mobile phone, a tablet computer, a smart watch, or other devices with the lens 1.
In the above-mentioned terminal, in the lens 1 of the camera module, by setting the elastic ring 50, when the field curvature of the lens 1 is larger or smaller, by rotating the locking ring 30, each component on the object side or the image side of the elastic ring 50, such as the lens 20 and the spacer ring 40, is controlled to move along the direction of the optical axis 70, so as to adjust the air gap between the adjacent lenses 20, thereby achieving the effect of adjusting the field curvature, realizing the adjustment of the field curvature of the lens 1, and keeping the field curvature of the lens 1 consistent. In addition, through the arrangement of the elastic ring 50, the elastic ring 50 can also provide pre-stress for the lens 20, so that the looseness of the lens 20 is avoided, the assembly stability of the lens 1 is ensured, through the arrangement of the elastic ring 50, the locking force of the locking ring 30 can be prevented from being transmitted to the lens 20 which is easy to crack, the lens 20 is prevented from cracking, the stability of the lens 1 is ensured, through the arrangement of the elastic ring 50, the friction force between the elastic ring 50 and adjacent parts such as the lens 20, the locking ring 30 and the spacing ring 40 can be increased, the vibration of the lens 1 in the transportation and use processes is reduced, the radial movement of the parts is reduced, the optical effect of the lens 1 is influenced, through the arrangement of the elastic ring 50, the elastic ring 50 can also play a buffering role between the two adjacent lenses 20, the direct contact between the lenses 20 is avoided, the ink coating on the lenses 20 is prevented from cracking, and through the arrangement of the elastic ring 50, when gaps are generated in the lens 1, the elastic ring 50 pushes other parts to move to block the gaps through self deformation, so that a relatively airtight space is formed, and the dustproof effect of the lens 1 is improved. By reasonably configuring the poisson's ratio of the elastomeric ring 50, in a first aspect, the elastomeric ring 50 is caused to provide reasonable pre-compression of the components, and in a second aspect, the lens 20 is prevented from fracturing.
It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present application without departing from the spirit and scope of the technical solution of the present application.
Claims (10)
1. A lens, comprising:
a lens barrel provided with a light-transmitting hole extending in the direction of the optical axis;
a plurality of lenses arranged in the light-passing holes;
The locking ring is arranged in the light transmission hole and is in threaded connection with the object side and/or the image side of the lens barrel;
the spacer ring is arranged in the light passing hole and between two adjacent lenses;
The elastic ring is arranged in the light passing hole, the elastic ring is in a circular ring shape, the Poisson ratio of the elastic ring is 0.4-0.5, the elastic ring is arranged between two adjacent lenses, or the elastic ring is arranged between the locking ring and the lenses arranged adjacent to the locking ring, or the elastic ring is arranged between the spacing ring and the lenses arranged adjacent to the spacing ring.
2. The lens of claim 1, wherein at least one of an object side and an image side of the elastic ring is provided with a slit recessed in a direction of an optical axis.
3. The lens of claim 2, wherein when the slit is formed on both the object side and the image side of the elastic ring, the slit is formed on the elastic ring at intervals around the direction of the optical axis.
4. A lens as claimed in claim 2 or 3, wherein a distance between a bottom of the slit formed in the object side or the image side of the elastic ring and the image side or the object side of the elastic ring along the optical axis is 0.05mm or more.
5. The lens barrel as claimed in claim 1, wherein an outer peripheral side of the elastic ring is provided with a side groove recessed in a direction perpendicular to the optical axis.
6. The lens barrel as claimed in claim 5, wherein a distance between a bottom of the side groove and an inner peripheral side of the elastic ring in a direction perpendicular to the optical axis is 0.05mm or more.
7. The lens as claimed in claim 1, wherein a bearing portion is disposed in the light-transmitting hole, wherein one of the lenses is abutted against an object side or an image side of the bearing portion, and/or wherein two adjacent lenses are respectively abutted against the object side and the image side of the bearing portion, and the number of the elastic rings is two, wherein one of the elastic rings is disposed between the bearing portion and the lens disposed adjacent to the bearing portion.
8. The lens barrel according to claim 1, wherein a cross section of the elastic ring in a direction of the optical axis and passing through the geometric center has a circular, semicircular, elliptical or polygonal shape.
9. A camera module, characterized by comprising a shell, a photosensitive chip and the lens according to any one of claims 1-8, wherein the photosensitive chip is installed in the shell, a mounting hole is formed in the shell, the lens is installed in the mounting hole, and the lens and the photosensitive chip are coaxially arranged along the direction of an optical axis.
10. A terminal comprising the camera module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520334187.2U CN223815457U (en) | 2025-02-28 | 2025-02-28 | Lenses, camera modules and terminals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520334187.2U CN223815457U (en) | 2025-02-28 | 2025-02-28 | Lenses, camera modules and terminals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223815457U true CN223815457U (en) | 2026-01-20 |
Family
ID=98423597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520334187.2U Active CN223815457U (en) | 2025-02-28 | 2025-02-28 | Lenses, camera modules and terminals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223815457U (en) |
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2025
- 2025-02-28 CN CN202520334187.2U patent/CN223815457U/en active Active
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