CN113534386A - Compression ring, lens, camera module and electronic equipment - Google Patents

Compression ring, lens, camera module and electronic equipment Download PDF

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Publication number
CN113534386A
CN113534386A CN202010238509.5A CN202010238509A CN113534386A CN 113534386 A CN113534386 A CN 113534386A CN 202010238509 A CN202010238509 A CN 202010238509A CN 113534386 A CN113534386 A CN 113534386A
Authority
CN
China
Prior art keywords
lens barrel
lens
pressing ring
connecting piece
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010238509.5A
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Chinese (zh)
Inventor
胡德忠
吴俊甫
邹海荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Jingchao Optical Co Ltd
Original Assignee
Jiangxi Jingchao Optical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangxi Jingchao Optical Co Ltd filed Critical Jiangxi Jingchao Optical Co Ltd
Priority to CN202010238509.5A priority Critical patent/CN113534386A/en
Publication of CN113534386A publication Critical patent/CN113534386A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lens Barrels (AREA)

Abstract

The application discloses clamping ring, camera lens, module and electronic equipment make a video recording for camera lens includes: the pressing ring is annular and is used for pressing the lens group in the lens barrel of the lens; the adhesive part is connected with the pressing ring and extends towards the direction far away from the center of the pressing ring; the glue joint part is used for extending out of the accommodating cavity in the lens barrel and is glued with the lens barrel, so that the pressing ring is fixed on the lens barrel. Because the bonding part of the pressing ring can be bonded with the lens barrel outside the accommodating cavity of the lens barrel, the glue can not reflect stray light in the lens barrel, and the imaging effect of the lens is enhanced.

Description

Compression ring, lens, camera module and electronic equipment
Technical Field
The application relates to the technical field of make a video recording, especially relate to a clamping ring, camera lens, module and electronic equipment make a video recording.
Background
The camera shooting module comprises a lens barrel, a lens group and a compression ring. The lens cone is internally provided with an accommodating cavity, the lens group is arranged in the accommodating cavity, and the pressing ring is used for abutting against the image side face of the lens closest to the image side so as to enable the lens group to be stably positioned. The existing pressing rings are all provided with grooves in the peripheral wall, the groove body formed in the existing pressing ring can avoid burrs after the pressing ring is sheared on one hand, and on the other hand, the groove body is also used for storing glue which is used for bonding the inner wall surface of the lens cone and the pressing ring so as to realize the bonding of the pressing ring and the lens cone. According to the compression ring structure in the prior art, the glue between the lens cone and the compression ring can reflect stray light easily, so that the imaging quality of the camera module is reduced.
Disclosure of Invention
The application provides a clamping ring, camera lens, camera module and electronic equipment, can promote the imaging quality of camera module.
According to an aspect of the present application, there is provided a compression ring for a lens, including:
the pressing ring is annular and is used for pressing the lens group in the lens barrel of the lens;
the glue joint part is connected with the pressing ring and extends towards the direction far away from the center of the pressing ring;
the bonding part is used for extending out of the accommodating cavity in the lens barrel and bonding with the lens barrel, so that the pressing ring is fixed on the lens barrel.
In the above scheme, because the veneer grafting is being glued with the lens cone outside holding the chamber to the veneer, glue can not reflect and holds the miscellaneous light of intracavity, and then has promoted the imaging quality of the module of making a video recording.
According to some embodiments, the glue joint comprises:
one end of the first connecting piece is connected with the pressing ring;
the second connecting piece is connected with the other end of the first connecting piece;
the pressing ring is arranged to be installed on the lens barrel, the first connecting piece penetrates through the matching groove in the side wall of the lens barrel, and the second connecting piece is located outside the side wall of the lens barrel and is glued to the outer peripheral wall of the lens barrel.
In the above scheme, the glue that the part that splices is located the lens cone completely with the lens cone cemented outside, has further reduced the possibility that glue reflected the parasitic light, has promoted the imaging effect of camera lens.
According to some embodiments, the surface of the second connecting piece facing the pressing ring is an attaching surface, the first connecting piece is connected with the attaching surface, the attaching surface is an arc surface arranged around a central axis of the pressing ring, and the attaching surface is configured to attach to the outer peripheral wall of the lens barrel after the pressing ring is mounted on the lens barrel.
In the above scheme, the binding face can make the second connecting piece can laminate in the periphery wall of lens cone completely for the cambered surface, has promoted the second connecting piece and has glued complex steadiness with the lens cone.
According to some embodiments, the second connecting member includes a first extending portion extending from an end of the first connecting member facing away from the pressing ring in the first direction, and a second extending portion extending from an end of the first connecting member facing away from the pressing ring in the second direction;
the first direction is perpendicular to the optical axis of the lens and perpendicular to the length direction of the first connecting piece.
In the scheme, the stress on two sides of the first connecting piece is more uniform, and the limiting effect of the second connecting piece is better.
According to some embodiments, the surface of the pressing ring close to the image side end and the surface of the gluing part close to the image side end are in the same plane; and/or
The surface of the pressing ring departing from the image side end and the surface of the gluing part departing from the image side end are in the same plane.
In the scheme, the pressing ring can be formed by the plate, and the pressing ring is easier to process and manufacture.
According to some embodiments, the pressing ring includes a plurality of glue joints, each glue joint is connected to the pressing ring, and each glue joint extends out of the accommodating cavity of the lens barrel and is glued to the lens barrel.
In the scheme, the pressing ring can be fixed at multiple points, so that the positioning effect is better.
A second aspect of the present application also provides a lens barrel, including:
the lens cone defines an accommodating cavity, a matching groove is arranged on the end wall of the image side end of the lens cone, the matching groove extends towards the object side end of the lens cone, and the matching groove is communicated with the accommodating cavity;
the pressing ring comprises a pressing ring and a gluing part, the pressing ring is annular and is used for pressing the lens group in the accommodating cavity, and the gluing part is connected with the pressing ring and extends towards the direction far away from the center of the pressing ring;
wherein, the clamping ring is configured to be connected the back with the lens cone, supports the clamping ring and is located and holds the intracavity, and the portion that splices extends through the cooperation groove and holds the chamber, and the portion that splices is used for splicing with the lens cone to make the clamping ring be fixed in the lens cone.
In the above scheme, since the bonding position of the pressure ring and the lens barrel is located outside the accommodating cavity of the lens barrel, the glue bonding the pressure ring and the lens barrel does not reflect stray light in the lens barrel, so that the imaging effect of the lens is better.
According to some embodiments, the glue joint comprises:
one end of the first connecting piece is connected with the pressing ring;
the second connecting piece is connected with the other end of the first connecting piece and extends towards the image side end of the lens cone;
the pressing ring is arranged in such a way that after the pressing ring is installed on the lens barrel, the first connecting piece is positioned in the matching groove, and the end part, far away from the pressing ring, of the second connecting piece extends to the end wall of the image side end of the lens barrel and is glued with the end wall of the image side end of the lens barrel.
In the scheme, the glue is adhered to the image side end of the lens cone, so that the matching groove in the lens cone is not required to be completely opened, and the rigidity of the lens cone is improved.
According to some embodiments, the fitting groove communicates with the outer peripheral wall of the lens barrel;
the glue joint part comprises a first connecting piece and a second connecting piece, one end of the first connecting piece is connected with the pressing ring, and the other end of the first connecting piece is connected with the second connecting piece;
the pressing ring is arranged to be installed behind the lens barrel, the first connecting piece penetrates through the matching groove, and the second connecting piece is located outside the side wall of the lens barrel and is connected with the outer peripheral wall of the lens barrel in an adhesive mode.
In the above scheme, the bonding position of the pressure ring and the lens cone is positioned outside the side wall of the lens cone, so that the pressure ring and the lens cone are more conveniently bonded.
According to some embodiments, the lens barrel includes a plurality of fitting grooves, the pressing ring includes a plurality of adhesive parts, and each adhesive part is fitted with each fitting groove in a one-to-one correspondence.
In the above scheme, the bonding points of the pressure ring and the lens cone become more, so that the pressure ring and the lens cone are more stably connected.
According to some embodiments, the pressing ring is in transition fit with the inner circumferential wall of the lens barrel.
In the above scheme, the abutting connection between the pressing ring and the lens cone can be more tight, and the positioning effect of the pressing ring is enhanced.
According to some embodiments, the fitting groove extends in a direction parallel to the optical axis of the lens barrel.
In the scheme, the processing of the matching groove on the lens barrel is more convenient.
The third aspect of the present application further provides a camera module, including:
a lens barrel of any one of the above;
and the photosensitive chip is arranged at the image side end of the lens, and light rays passing through the accommodating cavity of the lens barrel irradiate the photosensitive chip.
In the module of making a video recording among the above-mentioned scheme, the formation of image effect of camera lens is better.
The fourth aspect of the present application further provides an electronic device, which includes the above-mentioned camera module.
The imaging effect of the camera module of the electronic equipment in the scheme is better.
The clamping ring in this application, because the portion that splices of clamping ring can splice with the lens cone outside the holding chamber of lens cone, so glue can not be in the lens cone internal reflection miscellaneous light, has strengthened the imaging effect of camera lens.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a rear view schematically illustrating a lens barrel according to the prior art;
FIG. 2 is a schematic full-section view of a lens in the prior art;
fig. 3 is an exploded view of a lens barrel assembly according to an embodiment of the present application;
fig. 4 is a perspective view of the lens barrel assembly of fig. 3;
FIG. 5 is a schematic full-section view of a lens barrel according to a first embodiment of the present application;
FIG. 6 is a rear view of the lens barrel of FIG. 5;
FIG. 7 is a schematic rear view of a pressure ring according to an embodiment of the present application;
FIG. 8 is a schematic full-section view of a lens barrel according to a second embodiment of the present application;
FIG. 9 is an exploded schematic view of a full section view of the lens of FIG. 8;
FIG. 10 is a rear view of the lens barrel of FIG. 8;
fig. 11 is a rear view schematically illustrating a lens barrel according to a third embodiment of the present application;
FIG. 12 is a schematic, cross-sectional view of the lens barrel of FIG. 11;
fig. 13 is a rear view schematically illustrating a lens barrel according to a fourth embodiment of the present application;
fig. 14 is a full-sectional schematic view of the lens barrel in fig. 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
As shown in fig. 1-2, in the prior art, a lens 10 'includes a lens barrel 110', a lens group 140 ', and a pressing ring 120'. The lens barrel 110 ' has an accommodating cavity 130 ' therein, the lens group 140 ' is disposed in the accommodating cavity 130 ', and the lens group 140 ' may be a single lens or a combination of multiple lenses. The pressing ring 120 ' is used for pressing the image side surface of the lens group 140 ' closest to the image side so as to position the lens group 140 ' stably. The existing press ring 120 ' is grooved on the peripheral wall thereof, and the groove body 123 ' is provided to remove the burr generated when the press ring 120 ' is cut, and to dispense. The glue bonds the inner wall surface of the lens barrel 110 'and the press ring 120' so as to realize the gluing of the press ring 120 'and the lens barrel 110'. In the prior art, the glue in the accommodating cavity 130 'is easy to reflect stray light, thereby reducing the imaging quality of the lens 10'.
In order to solve the above problem, the present embodiment provides a pressing ring 120, and the pressing ring 120 can be matched with the lens barrel 110 having a matching structure corresponding to the pressing ring 120, so as to achieve the purpose of reducing stray light in the lens barrel 110. Since the pressing ring 120 needs to be matched with the lens barrel 110, for convenience of description, a lens barrel assembly formed by combining the lens barrel 110 and the pressing ring 120 will be described together.
As shown in fig. 3 to 4, the present embodiment provides a lens barrel assembly 100, and the lens barrel assembly 100 includes a lens barrel 110 and a pressing ring 120.
The lens barrel 110 defines an accommodating cavity 130, and the accommodating cavity 130 is used for accommodating components such as the lens group 140 and the pressing ring 120. The imaging light passes through the accommodating cavity 130 of the lens barrel 110 from the object side end of the lens barrel 110 to reach the image side end of the lens barrel 110. In this embodiment, one end of the lens barrel 110 close to the object is defined as the object side end, and one end of the lens barrel 110 away from the object is defined as the image side end.
An end wall 112 of the lens barrel 110 at the image side end is provided with a matching groove 111, the matching groove 111 extends towards the object side end of the lens barrel 110, and the matching groove 111 is communicated with the accommodating cavity 130. The engagement groove 111 may extend linearly or may extend in a curve, and specifically, when the engagement groove 111 extends linearly, the extension direction of the engagement groove 111 may be parallel to the optical axis of the lens barrel 110 or may be inclined from the optical axis of the lens barrel 110.
The shape of the fitting groove 111 may be arbitrary, and only the condition of communicating with the accommodating chamber 130 is satisfied. The size of the fitting groove 111 may be determined as the actual situation, and the width of the fitting groove 111 in the radial direction of the lens barrel 110 may be smaller than the thickness of the peripheral wall of the lens barrel 110 or equal to the thickness of the peripheral wall of the lens barrel 110. In other words, the fitting groove 111 may or may not communicate with the outer peripheral wall of the lens barrel 110.
It should be noted that, in this embodiment, the space where the fitting groove 111 is located is not part of the accommodating cavity 130, that is, the space enclosed by the lens barrel 110 before the fitting groove 111 is opened is referred to as the accommodating cavity 130. The space inside the fitting groove 111 may be referred to as a space outside the receiving chamber 130.
The pressing ring 120 includes a pressing ring 121 and a gluing portion 122, and the pressing ring 121 is annular and is used for pressing the lens group 140 located in the accommodating cavity 130. That is, the pressing ring 121 in the present embodiment functions as the pressing lens group 140 'of the pressing ring 120' in the prior art, but the pressing ring 121 in the present embodiment is not glued to the inner peripheral wall of the lens barrel 110, so the outer peripheral wall of the pressing ring 121 may not be provided with a glue dispensing groove. The adhesive part 122 is connected to the pressing ring 121 and extends in a direction away from the center of the pressing ring 121. Specifically, the adhesive part 122 may be connected to the outer peripheral wall of the pressing ring 121, and the adhesive part 122 may extend in a direction perpendicular to the optical axis of the lens barrel, may also extend in a direction inclined to the optical axis, or may also extend in a direction parallel to the optical axis and then extend in a direction inclined to the optical axis.
The pressing ring 120 is configured to be assembled to the lens barrel 110, and the pressing ring 121 is located in the accommodating cavity 130 and abuts against the lens group 140 located in the lens barrel 110. The adhesive portion 122 extends to the outside of the accommodating cavity 130 through the matching groove 111, and the adhesive portion 122 is used for adhering to the lens barrel 110 outside the accommodating cavity 130, so that the pressing ring 120 is fixed to the lens barrel 110. The fitting groove 111 may or may not communicate with the outer peripheral wall of the lens barrel 110. When the matching groove 111 is not communicated with the outer peripheral wall of the lens barrel 110, the adhesive part 122 can be completely accommodated in the matching groove 111, and the adhesive part 122 is adhered to the wall of the matching groove 111 (since the space of the matching groove 111 does not belong to the accommodating cavity 130, the adhesive part 122 and the lens barrel 110 can be also referred to as being adhered outside the accommodating cavity 130), or the adhesive part 122 extends towards the image side end of the lens barrel 110 in the matching groove 111 and extends out of the lens barrel 110, and the portion of the adhesive part 122 outside the lens barrel 110 is adhered to the lens barrel 110. When the fitting groove 111 communicates with the outer peripheral wall of the lens barrel 110, the adhesive part 122 may be only located in the fitting groove 111 and adhered to the lens barrel 110 in the fitting groove 111. The adhesive portion 122 may pass through the fitting groove 111 and be adhered to the inner wall surface of the fitting groove 111 in the fitting groove 111 or the outer peripheral wall of the lens barrel 110 outside the fitting groove 111.
In the lens barrel assembly 100 of the present embodiment, since the end wall of the lens barrel 110 at the image side end is provided with the fitting groove 111, the adhesive portion 122 of the pressing ring 120 can extend out of the accommodating cavity 130 of the lens barrel 110 through the fitting groove 111. The glue part 122 and the lens barrel 110 are glued outside the accommodating cavity 130, and the glue does not reflect stray light in the accommodating cavity 130, so that the imaging quality of the lens 10 is improved. Meanwhile, the outer ring position of the pressing ring 121 in the present application is not provided with a groove for dispensing, so that the pressing ring 121 can be completely abutted against the inner wall surface of the lens barrel 110, thereby enhancing the waterproof effect of the lens 10.
As shown in fig. 2, in the prior art, in order to eliminate stray light, the inner peripheral wall of the pressing ring 120' needs to be inclined with respect to the optical axis. Since the adhesive dispensing groove 123 'is formed in the outer peripheral wall of the pressing ring 120', an inclination angle of the inner peripheral wall of the pressing ring 120 'with respect to the optical axis is limited in order to avoid the position of the adhesive dispensing groove 123'. As shown in fig. 3 to 7, in this embodiment, since no groove is formed on the outer periphery of the pressing ring 121 located in the accommodating cavity 130, the inclination angle of the inner peripheral wall of the pressing ring 121 is not limited by the dispensing groove, and the inclination angle can be made larger, which is more favorable for eliminating stray light. In particular, in order to maximize the extinction effect of the pressing ring 121, the inner circumferential wall of the pressing ring 121 may have a maximum inclination angle with respect to the optical axis, and in this case, the cross section of the pressing ring 121 perpendicular to the circumferential direction thereof may have a triangular shape.
When the glue portion 122 passes through the matching groove 111, the glue portion 122 may include a first connector 1221 and a second connector 1222, one end of the first connector 1221 is connected to the pressing ring 121, and the other end is connected to the second connector 1222. When the pressing ring 120 is assembled to the lens barrel 110, the first connector 1221 is located in the fitting groove 111, the second connector 1222 is located outside the lens barrel 110, and the second connector 1222 is glued to the outer peripheral wall. That is, in the present embodiment, a portion of the adhesive portion 122 located in the fitting groove 111 is referred to as a first connector 1221, and a portion located outside the lens barrel 110 is referred to as a second connector 1222 (when the adhesive portion 122 is completely located in the fitting groove 111, the adhesive portion 122 may not have the second connector 1222). When the glue connection portion 122 extends out of the matching groove 111, the glue connection portion 122 can be glued to the outer peripheral wall of the lens barrel 110, specifically, the second connection member 1222 is glued to the outer peripheral wall of the lens barrel 110, so that the glue is completely located outside the lens barrel 110, and the stray light problem caused by the glue is completely avoided. And because the gluing position of the second connector 1222 and the peripheral wall of the lens barrel 110 is not limited, the glue amount for gluing can be increased, so that the connection between the pressing ring 120 and the lens barrel 110 is more stable.
In order to increase the bonding area, in an embodiment, the second connector 1222 includes an attaching surface facing the first connector 1221, the attaching surface has a size such that it can attach to the outer peripheral wall of the lens barrel 110, and the larger the attaching area of the attaching surface and the outer peripheral wall of the lens barrel 110 is, the larger the pre-fixing force of the bonding portion 122 and the outer peripheral wall of the lens barrel 110 is, the more stable the connection therebetween is. In order to make the adhesive force of the adhesive portion 122 and the outer wall surface of the lens barrel 110 uniform, the first connector 1221 may be connected to the middle of the second connector 1222, specifically, to the middle of the attachment surface of the second connector 1222. It can be understood that the second connecting member 1222 includes a first extending portion and a second extending portion, the first extending portion extends from the end of the first connecting member 1221 away from the pressing ring 121 toward the first direction, the second extending portion extends from the end of the first connecting member 1221 away from the pressing ring 121 toward the second extending portion, and the connection portion of the first extending portion and the second extending portion is the middle portion of the second connecting member 1222. The first direction is perpendicular to the optical axis of the lens and perpendicular to the length direction of the first connecting member 1221. The length direction of the first connecting member 1221 is a direction in which the end of the first connecting member 1221 connected to the pressing ring 121 points away from the end of the pressing ring 121. In the above solution, the bonding areas of the portions of the bonding surfaces located at the two sides of the first connector 1221 and the outer peripheral wall of the lens barrel 110 are substantially the same, so that the bonding force between the bonding portion 122 and the outer wall of the lens barrel 110 can be uniform by uniformly applying glue to the outer periphery of the second connector 1222.
In order to facilitate the connection between the adhesive part 122 and the outer peripheral wall of the lens barrel 110, the attachment surface of the second connector 1222 may be attached to the outer peripheral wall of the lens barrel 110 or disposed at equal intervals, and the shape of the attachment surface may be determined according to the shape of the outer peripheral wall of the lens barrel 110. When the abutting surface abuts against the outer peripheral wall of the lens barrel 110, the diameter of the cylindrical surface where the abutting surface is located may be equal to the diameter of the outer peripheral wall, so that the relative positional relationship between the second connector 1222 and the lens barrel 110 is more stable. When the attaching surface and the outer peripheral wall of the lens barrel 110 are disposed at equal intervals, the diameter of the cylindrical surface where the attaching surface is located may be larger than the diameter of the outer peripheral wall, so that uniform dispensing between the attaching surface and the outer peripheral wall of the lens barrel 110 is facilitated, and the bonding force between the second connecting member 1222 and the lens barrel 110 is uniform.
When the shape of the pressing ring 121 is complicated, on the one hand, the manufacturing cost is increased, and on the other hand, the fitting with the fitting groove 111 is not facilitated. In this embodiment, the surface of the pressing ring 121 close to the image side end and the surface of the adhesive part 122 close to the image side end may be in the same plane. The surface of the pressing ring 121 facing away from the image side end and the surface of the adhesive part 122 facing away from the image side end may be in the same plane. That is, the pressing ring 121 can be regarded as a plate having a specific shape. The above-described structure of the pressing ring 121 makes the process of manufacturing thereof very simple. When the surface of the pressing ring 121 close to the object side end and the surface of the adhesive portion 122 close to the object side end are in the same plane, since the surface of the pressing ring 121 close to the object side end needs to be abutted against the image side surface of the lens group 140, the size of the fitting groove 111 pointing to the object side end of the lens barrel 110 along the image side end of the lens barrel 110 can be set without being affected by the shape of the adhesive portion 122, that is, the fitting groove 111 is designed without giving way to the adhesive portion 122, and only the design is performed by referring to the arrangement position of the lens group 140 in the lens barrel, and only the pressing ring 121 needs to be unaffected to press the lens group 140 in the lens barrel, so that the specific shape of the pressing ring 120 does not need to be considered when the fitting groove 111 on the lens barrel 110 is processed, and the processing of the fitting groove 111 is facilitated. Meanwhile, the structure of the pressing ring 120 also facilitates the integral forming, and the processing cost is reduced.
In particular, as shown in fig. 8 to 10, in one embodiment, when the width dimension of the fitting groove 111 in the radial direction of the lens barrel 110 is smaller than the thickness of the peripheral wall of the lens barrel 110, the adhesive part 122 of the pressing ring 120 is completely located in the fitting groove 111 and is adhered to the fitting groove 111. In order to prevent the glue connected between the glue part 122 and the fitting groove 111 from being in the lens barrel 110 to generate stray light, the glue part 122 may completely fill the fitting groove 111 and extend to the image side end surface of the lens barrel 110 in the axial direction of the lens barrel 110. For dispensing, a chamfer may be formed at an edge of an end surface of the glue joint portion 122 that is flush with the image-side end surface of the lens barrel 110, a space of a certain size is formed between the chamfer and the side wall surface of the matching groove 111, dispensing can be performed in the space, and during dispensing in the space, the glue does not overflow to the inner wall of the lens barrel 110, and the image quality of the lens 10 is not affected.
In the above scheme, the wall surface of the glue joint portion 122 facing the accommodating cavity 130 may be an arc surface, and the diameter of the cylindrical surface where the arc surface is located is equal to the diameter of the inner peripheral wall of the lens barrel 110, that is, the wall surface of the glue joint portion 122 facing the accommodating cavity 130 and the inner peripheral wall of the lens barrel 110 are located on the same cylindrical surface, so that the structure can reduce the reflection surface in the lens barrel 110, thereby reducing stray light.
As shown in fig. 11 to 14, in order to enable stable positioning of the pressing ring 120, the number of the fitting grooves 111 and the glue portions 122 may be plural, and the shape of each fitting groove 111 may be the same and the shape of each glue portion 122 may be the same, regardless of the shape and structure of the fitting grooves 111 and the glue portions 122 in the above-described embodiment. Specifically, the matching grooves 111 may be arranged in a circular array around the optical axis of the lens barrel 110, the glue portions 122 are respectively connected to the pressing ring 121, and the glue portions 122 are matched with the matching grooves 111 in a one-to-one correspondence manner.
The second aspect of the present application further provides a lens barrel 10, where the lens barrel 10 includes a lens group 140 and the lens barrel assembly 100 in any of the above embodiments. The lens group 140 is disposed in the accommodating cavity 130 of the lens barrel 110, and the pressing ring 121 presses against an image-side end surface of the lens group 140, so as to fix the lens group 140 in the lens barrel 110.
The third aspect of the present application also provides an electronic apparatus including the lens 10 described above. Specifically, the electronic device may be a mobile phone, a tablet, a notebook, a camera, or other devices capable of taking pictures.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (14)

1. A compression ring for a lens, comprising:
the pressing ring is annular and is used for pressing the lens group in the lens barrel of the lens;
the adhesive part is connected with the pressing ring and extends towards the direction far away from the center of the pressing ring;
when the pressing ring is connected to the rear of the lens barrel, the gluing part is used for extending out of the accommodating cavity in the lens barrel and gluing with the lens barrel, so that the pressing ring is fixed on the lens barrel.
2. A pressure ring according to claim 1, characterized in that the glue joint comprises:
one end of the first connecting piece is connected with the pressing ring;
the second connecting piece is connected with the other end of the first connecting piece;
when the pressing ring is installed behind the lens barrel, the first connecting piece is used for penetrating through the matching groove in the side wall of the lens barrel, and the second connecting piece is located outside the side wall of the lens barrel and is used for being connected with the outer peripheral wall of the lens barrel in a gluing mode.
3. A pressure ring according to claim 2,
the second connecting piece face to the surface that supports the clamping ring is the binding face, first connecting piece with the binding face is connected, just the binding face is for winding the cambered surface that supports the central axis of clamping ring and arrange, the binding face configures into and works as the clamping ring install in laminate behind the lens cone in the periphery wall of lens cone.
4. A pressure ring according to claim 3,
the second connecting piece comprises a first extending part and a second extending part, the first extending part extends from the end part of the first connecting piece, which is far away from the pressure ring, to the first direction, and the second extending part extends from the end part of the first connecting piece, which is far away from the pressure ring, to the direction, which is far away from the second extending part;
the first direction is perpendicular to the optical axis of the lens and perpendicular to the length direction of the first connecting piece.
5. A pressure ring according to claim 1,
the surface of the pressing ring close to the image side end and the surface of the gluing part close to the image side end are in the same plane; and/or
The surface of the pressing ring departing from the image side end and the surface of the gluing part departing from the image side end are in the same plane.
6. A pressure ring according to claim 1,
the clamping ring comprises a plurality of gluing parts, each gluing part is connected with the abutting ring, and each gluing part extends out of the accommodating cavity of the lens cone and is glued with the lens cone.
7. A lens barrel characterized by comprising:
the lens cone defines an accommodating cavity, a matching groove is arranged on the end wall of the image side end of the lens cone, the matching groove extends towards the object side end of the lens cone, and the matching groove is communicated with the accommodating cavity;
the pressing ring comprises a pressing ring and a gluing part, the pressing ring is annular and is used for pressing the lens group in the accommodating cavity, and the gluing part is connected with the pressing ring and extends towards the direction far away from the center of the pressing ring;
wherein, it is located to support the clamping ring hold the intracavity, the portion of gluing passes through cooperation groove and extend hold the chamber, just the portion of gluing be used for with the lens cone splices, thereby makes the clamping ring is fixed in the lens cone.
8. The lens barrel according to claim 7, wherein the glue portion includes:
one end of the first connecting piece is connected with the pressing ring;
the second connecting piece is connected with the other end of the first connecting piece and extends towards the image side end of the lens cone;
the first connecting piece is located in the matching groove, and the end part, far away from the pressing ring, of the second connecting piece extends to the end wall of the image side end of the lens barrel and is glued with the end wall of the image side end of the lens barrel.
9. The lens barrel as recited in claim 7,
the matching groove is communicated with the outer peripheral wall of the lens barrel;
the glue joint part comprises a first connecting piece and a second connecting piece, one end of the first connecting piece is connected with the pressing ring, and the other end of the first connecting piece is connected with the second connecting piece;
the first connecting piece penetrates through the matching groove, and the second connecting piece is located outside the side wall of the lens cone and is connected with the outer peripheral wall of the lens cone in an adhesive mode.
10. The lens barrel as recited in claim 7,
the lens cone comprises a plurality of matching grooves, the pressing ring comprises a plurality of gluing parts, and the gluing parts are in one-to-one correspondence with the matching grooves.
11. The lens barrel as recited in claim 7,
the outer peripheral wall of the pressing ring is in transition fit with the inner peripheral wall of the lens barrel.
12. The lens barrel as recited in claim 7,
the fitting groove extends in a direction parallel to an optical axis of the lens barrel.
13. The utility model provides a module of making a video recording which characterized in that includes:
a lens barrel as claimed in any one of claims 7 to 12;
and the photosensitive chip is arranged at the image side end of the lens, and light rays passing through the accommodating cavity irradiate towards the photosensitive chip.
14. An electronic device comprising the camera module of claim 13.
CN202010238509.5A 2020-03-30 2020-03-30 Compression ring, lens, camera module and electronic equipment Pending CN113534386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010238509.5A CN113534386A (en) 2020-03-30 2020-03-30 Compression ring, lens, camera module and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010238509.5A CN113534386A (en) 2020-03-30 2020-03-30 Compression ring, lens, camera module and electronic equipment

Publications (1)

Publication Number Publication Date
CN113534386A true CN113534386A (en) 2021-10-22

Family

ID=78087621

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010238509.5A Pending CN113534386A (en) 2020-03-30 2020-03-30 Compression ring, lens, camera module and electronic equipment

Country Status (1)

Country Link
CN (1) CN113534386A (en)

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Application publication date: 20211022