CN113391420A - Lens, camera module, electronic equipment and mould - Google Patents
Lens, camera module, electronic equipment and mould Download PDFInfo
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- CN113391420A CN113391420A CN202110592379.XA CN202110592379A CN113391420A CN 113391420 A CN113391420 A CN 113391420A CN 202110592379 A CN202110592379 A CN 202110592379A CN 113391420 A CN113391420 A CN 113391420A
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- 230000003287 optical effect Effects 0.000 claims abstract description 134
- 238000003825 pressing Methods 0.000 claims abstract description 78
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- 238000003384 imaging method Methods 0.000 claims description 13
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- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 5
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- 239000004033 plastic Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 10
- 208000032826 Ring chromosome 3 syndrome Diseases 0.000 description 116
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Classifications
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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
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
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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
- G02B7/006—Filter holders
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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
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
-
- 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
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- 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
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
Abstract
The invention relates to the technical field of optical lenses, in particular to a lens, a camera module, electronic equipment and a mold. The lens comprises a lens barrel, a lens group, a pressure ring and an optical filter. The lens cone is provided with a light through hole, and the lens cone is provided with a first end surface close to the object side and a second end surface close to the image side in the axial direction of the light through hole; the lens group is accommodated in the light through hole; the pressing ring is fixedly arranged in the light through hole, abuts against one side, close to the second end face, of the lens group, and the inner wall of the pressing ring is recessed towards the outer wall of the pressing ring to form a first annular groove; the edge of the periphery of the optical filter is embedded in the first annular groove. The matching requirements among the compression ring, the optical filter and the lens barrel in the lens are low, the processing difficulty of the lens is reduced, and the yield of lens assembly is improved.
Description
Technical Field
The invention relates to the technical field of optical lenses, in particular to a lens, a camera module, electronic equipment and a mold.
Background
With the development of technology, the lens has been widely applied to various electronic devices, such as mobile devices and monitoring devices. However, the structure of the existing lens still has some disadvantages, such as assembly tolerances among the pressure ring, the optical filter and the lens barrel in the lens, which seriously affects the assembly precision of the pressure ring, the optical filter and the lens barrel and increases the processing difficulty of the lens.
Disclosure of Invention
The application discloses camera lens, cooperation between clamping ring, light filter and the lens cone in this camera lens requires lowly, has reduced the processing degree of difficulty of camera lens, has improved the yield of camera lens equipment.
In a first aspect, the present application discloses a lens barrel, comprising:
the lens barrel is provided with a light through hole, and the lens barrel is provided with a first end surface close to an object side and a second end surface close to an image side in the axial direction of the light through hole;
the lens group is accommodated in the light through hole;
the pressing ring is fixedly arranged in the light through hole, abuts against one side, close to the second end face, of the lens group, and the inner wall of the pressing ring is recessed towards the outer wall of the pressing ring to form a first annular groove;
and the peripheral edge of the optical filter is embedded in the first annular groove.
When the compression ring and the optical filter are assembled in the lens barrel, the inner wall of the compression ring is recessed towards the outer wall of the compression ring to form the first annular groove, the optical filter is embedded in the first annular groove, the optical filter is not directly assembled with the inner wall of the lens barrel, and is fixed by means of the compression ring, so that the assembling tolerance between the compression ring and the inner wall of the lens barrel only needs to be considered in the assembling process, the assembling tolerance between the optical filter and the inner wall of the lens barrel does not need to be considered, the matching requirements between the compression ring, the optical filter and the lens barrel are reduced, the processing difficulty of the lens is reduced, and the yield of lens assembly is improved.
Furthermore, the pressure ring and the optical filter are of an integrated structure, and the pressure ring and the optical filter are integrated through an insert molding process.
Wherein, clamping ring and light filter are integrated into one piece structure, on the one hand, are convenient for improve the joint strength of clamping ring and light filter, and on the other hand can reduce the quantity of spare part, is convenient for lead to the unthreaded hole with clamping ring and light filter whole assembly in, improve assembly efficiency.
Further, the second end surface is recessed towards the direction of the first end surface, so that a second annular groove is formed between the inner wall of the lens barrel and the outer wall of the pressing ring; or one surface of the pressing ring facing the second end surface is recessed towards the direction of the first end surface, so that a second annular groove is formed between the inner wall of the lens cone and the outer wall of the pressing ring; or the second end face and one face, close to the second end face, of the compression ring are both recessed towards the first end face to form a second annular groove;
the lens further comprises a connecting piece arranged in the second annular groove, and the pressing ring is connected with the lens barrel through the connecting piece.
Wherein, form the second annular groove through the inner wall of lens cone and the outer wall of clamping ring to set up the connecting piece in this second annular groove, thereby can firmly link together clamping ring and lens cone.
Further, the connecting piece is adhesive.
Because the second annular groove is formed between the inner wall of the lens cone and the outer wall of the pressing ring, the pressing ring and the lens cone can be firmly bonded together by using the adhesive through arranging the adhesive in the second annular groove. In addition, compare in directly setting up the adhesive between the outer wall of clamping ring and the inner wall of lens cone, can lead to the adhesive can spill over to the mode that the clamping ring is close to the one side of second terminal surface, and the adhesive holding is in the second annular groove between the outer wall of the inner wall of lens cone and clamping ring in this embodiment, and the adhesive is difficult for spilling over to the clamping ring and is close to the one side of second terminal surface, consequently can reduce the length of camera lens. In addition, in the first annular groove of the filter plate provided with the press ring, the path length from the adhesive to the filter plate is increased in the radial direction of the light through hole, and the adhesive is not easy to overflow onto the filter plate, so that the adhesive is prevented from being adhered to the surface of the filter plate and scattering incident light entering the filter plate.
Further, the axial direction of the light passing hole is the optical axis direction of the lens, in the radial direction along the light passing hole, a difference value between an inner diameter of the second annular groove and an outer diameter of the second annular groove is a width of the second annular groove, and the width of the second annular groove gradually increases or gradually decreases from the object side to the image side.
Because the second annular groove is from the object side to the image side, the width of the second annular groove gradually increases or gradually decreases, so that the bonding area between the adhesive and the outer wall of the pressing ring and the inner wall of the lens cone can be increased, and the connection strength between the pressing ring and the lens cone is improved.
Furthermore, in the axial direction of the light through hole, one side of the second annular groove close to the second end face is a groove bottom, one side of the second annular groove close to the first end face is a groove bottom, and the width of the groove bottom is greater than that of the groove bottom.
Wherein, the notch is the one side that second annular groove is close to the second terminal surface, and the notch is located the one side towards the outside of lens cone also, and the width of notch is greater than the width of tank bottom, therefore the processing of the second recess of being convenient for to and be convenient for beat gluey equipment and carry out some glue to the second annular groove and handle.
Furthermore, in the axial direction of the light through hole, the distance between the notch and the groove bottom is A, and A is more than or equal to 0.15 mm; and/or the width of the notch in the radial direction of the light through hole is B, wherein B is more than or equal to 0.15 mm.
When the distance between the notch and the groove bottom is greater than or equal to 0.15mm, the pressing ring and the lens barrel can be stably connected together; when the width of the notch is larger than or equal to 0.15mm, glue dispensing processing of the second annular groove is performed by glue dispensing equipment conveniently.
Furthermore, the end face of the compression ring close to the second end face is parallel to the second end face, and in the axial direction of the light through hole, the distance between the end face of the compression ring close to the second end face and the second end face is C, wherein C is larger than or equal to 0.02 mm.
When C is larger than or equal to 0.02mm, the length of the lens can be ensured to be small, and meanwhile, the damage probability of the pressure ring and the optical filter is reduced.
Furthermore, the thickness of the pressure ring is D along the axial direction of the light through hole, and D is more than or equal to 0.30 mm.
Wherein, the thickness of clamping ring is more than or equal to 0.30mm, and when the optical filter can be ensured to be embedded into the first annular groove of the clamping ring, the clamping ring can be stably molded.
Further, the optical filter is arranged in parallel with the pressure ring;
in the axial direction of the light through hole, the distance between the end face of the optical filter close to the first end face and the end face of the compression ring close to the first end face is E, and 0.5D & gtE & gt 0.3D; and/or in the axial direction of the light through hole, the distance between the end face of the optical filter close to the second end face and the end face of the compression ring close to the second end face is F, and 0.5D & gtF & gt 0.3D.
The optical filter and the press ring are arranged in parallel, so that light rays passing through the optical filter can uniformly strike the photosensitive film, and the brightness of an image is uniform and clear. In addition, when 0.5D > E > 0.3D and 0.5D > F > 0.3D, the structural strength of the pressure ring can be guaranteed to be high, when the optical filter is accommodated in the first annular groove, the part between one surface of the pressure ring close to the first end surface and the first annular groove and the part between one surface of the pressure ring close to the second end surface and the first annular groove are not prone to deformation and cracking, and the optical filter is conveniently and stably accommodated in the first annular groove.
Furthermore, the depth of the optical filter embedded into the first annular groove in the radial direction of the pressure ring is G, and G is larger than or equal to 0.10 mm.
When the depth of the optical filter embedded into the first annular groove is greater than or equal to 0.10mm, the optical filter is not easy to fall off from the first annular groove, and the optical filter is conveniently and stably accommodated in the first annular groove.
Further, the light filter is embedded in the first annular groove, so that the inner wall of the pressing ring is divided into a first pressing ring part close to the first end face and a second pressing ring part close to the second end face, the inner diameter of the first pressing ring part is gradually reduced in the direction away from the first end face in the axial direction of the light through hole, and the inner diameter of the second pressing ring part is gradually increased in the direction away from the first end face.
The incident light entering the lens barrel sequentially passes through one side of the first end face of the lens barrel, the lens group, the first pressure ring part, the optical filter, the second pressure ring part and one side of the second end face of the lens barrel, so that the inner diameter of the first pressure ring part is gradually reduced in the direction away from the first end face, the incident quantity of the incident light blocked by the first pressure ring part can be reduced, and the incident quantity of the incident light entering the optical filter is increased; simultaneously, the internal diameter of second clamping ring portion is crescent in the direction of keeping away from first terminal surface, can reduce the emergent volume that second clamping ring portion blocked the emergent ray of light filter, is convenient for make better ray pass through the light filter.
Furthermore, the optical filter is used for enabling incident light to pass through, the distance between the incident light entering the outermost side of the optical filter and one side, close to the optical filter, of the first pressure ring part is H, and H is larger than or equal to 0.05 mm; and/or the distance between the incident light entering the outermost side of the optical filter and one side of the second pressure ring part close to the optical filter is J, and the J is more than or equal to 0.05 mm.
So, can avoid the inner wall of first pressure ring portion and the inner wall of second pressure ring portion to block the light through the light filter, be convenient for make light better pass through the light filter.
Furthermore, the optical filter and one side of the lens group close to the second end face are arranged at intervals in the axial direction of the light through hole.
Wherein, separate light filter and lens group through the clamping ring, can prevent light filter and lens group contact, cause the damage of the two.
In a second aspect, the present application further discloses a camera module, including:
a lens barrel as described in the first aspect;
the photosensitive chip is arranged at the image side end of the lens and used for receiving the light rays transmitted from the lens to perform imaging.
In a third aspect, the application further discloses an electronic device, which includes the camera module of the second aspect.
In a fourth aspect, the present application further discloses a mold for embedding the optical filter in the press ring by injection molding, the mold comprising:
the optical filter comprises a first clamp and a second clamp which are arranged oppositely, wherein a gap is formed between the first clamp and the second clamp, and the first clamp and the second clamp are used for clamping the optical filter in the gap;
the module, the perpendicular to is followed to the module the direction cover of the thickness of light filter is established on the periphery wall of first anchor clamps with on the second anchor clamps periphery wall, the module first anchor clamps the junction of second anchor clamps forms the die cavity, the shape and the size of die cavity are used for matcing the shape and the size of clamping ring, the die cavity still is used for holding the week side edge of light filter, be equipped with the hole of moulding plastics on the periphery wall of module, mould plastics the hole with the die cavity intercommunication.
The mold can enable the pressure ring and the optical filter to be injected together, the pressure ring and the optical filter can be stably combined together, and the combination precision of the pressure ring and the optical filter is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electronic device in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a camera module in the embodiment of the present application;
FIG. 3 is a schematic structural diagram of a lens in an embodiment of the present application;
FIG. 4 is an exploded view of the structure of FIG. 3;
FIG. 5 is a schematic structural view of a mold in an embodiment of the present application;
FIG. 6 is a schematic structural diagram (with connectors omitted) based on an alternative embodiment of the lens barrel of FIG. 3;
FIG. 7 is a schematic structural diagram of another alternative embodiment based on the lens barrel of FIG. 3 (the connecting parts are omitted);
FIG. 8 is a schematic structural diagram of yet another alternative embodiment based on the lens barrel of FIG. 3 (the connecting member is omitted);
fig. 9 is a schematic structural view of the lens barrel in fig. 8 (the connecting member is not omitted);
FIG. 10 is an enlarged view of a portion of FIG. 8 at I;
FIG. 11 is a schematic structural diagram of the compression ring and the filter in the embodiment of the present application;
fig. 12 is a partial enlarged view at I in fig. 8 (showing light rays passing through the filter).
Reference numerals:
the camera comprises a camera module-100, a lens-10 a and a photosensitive chip-10 b;
the lens comprises a lens barrel-1, a light through hole-11, a first end face-12, a second end face-13, a lens group-2, a press ring-3, a first annular groove-31, a second annular groove-32, a notch-321, a groove bottom-322, a first press ring part-3 a, a second press ring part-3 b, an optical filter-4, a connecting piece-5, a mold-6, a first clamp-61, a second included angle-62, a module-63, an injection molding hole-631 and a cavity-64.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.
The technical solution of the present application will be further described with reference to the following embodiments and accompanying drawings.
Referring to fig. 1 and fig. 2, the present application discloses an electronic device, which includes a camera module, for example, the electronic device may be a mobile phone, a camera, a video camera, an ipad, a notebook computer, etc., as long as the electronic device has the camera module, and the specific type of the electronic device is not limited herein.
The camera module includes a lens 10a and a photosensitive chip 10b, the photosensitive chip 10b is disposed at an image side end of the lens 10a (i.e., a right side of the lens 10a in fig. 2), and the photosensitive chip 10b is configured to receive light transmitted from the lens 10a for imaging, that is, the light enters the lens 10a and irradiates the photosensitive chip 10b, so that the photosensitive chip 10b converts an optical signal into an electrical signal for imaging.
Specifically, please refer to fig. 3 and 4, in which fig. 3 is a schematic structural diagram of a lens 10a according to an embodiment of the present application, and fig. 4 is an exploded structural diagram of fig. 3. The lens 10a includes a lens barrel 1, a lens group 2, a pressure ring 3, and a filter 4. Wherein the lens barrel 1 has a light passing hole 11, and in an axial direction along the light passing hole 11 (i.e., a left-right direction in fig. 3), the lens barrel 1 has a first end surface 12 close to the object side (i.e., a left-side end surface of the lens barrel 1 in fig. 3) and a second end surface 13 close to the image side (i.e., a right-side end surface of the lens barrel 1 in fig. 3); the lens group 2 is accommodated in the light through hole 11; the press ring 3 is fixedly arranged in the light through hole 11, the press ring 3 abuts against one side, close to the second end face 13, of the lens group 2, and the inner wall of the press ring 3 is recessed towards the outer wall of the press ring to form a first annular groove 31; the peripheral side edge of the filter 4 is fitted in the first annular groove 31.
When the compression ring 3 and the optical filter 4 are assembled in the lens barrel 1, the inner wall of the compression ring 3 is recessed towards the outer wall of the compression ring, so that the first annular groove 31 is formed, the optical filter 4 is embedded in the first annular groove 31, the optical filter 4 is not directly assembled with the inner wall of the lens barrel 1, but is fixed by means of the compression ring 3, only the assembly tolerance between the compression ring 3 and the inner wall of the lens barrel 1 needs to be considered in the assembly process, the assembly tolerance between the optical filter 4 and the inner wall of the lens barrel 1 does not need to be considered, the matching requirements between the compression ring 3, the optical filter 4 and the lens barrel 1 are reduced, the processing difficulty of the lens is reduced, and the yield of lens assembly is improved.
Meanwhile, the compression ring 3 and the optical filter 4 can be assembled in advance and then assembled with the lens barrel 1, and the assembly efficiency of the lens is improved. In addition, set firmly clamping ring 3 in logical unthreaded hole 11, and clamping ring 3 supports the one side that lens group 2 is close to second terminal surface 13, also can be with lens group 2 spacing in lens cone 1, prevents that lens group 2 from taking place to rock, and the stable work that carries on of lens group 2 of being convenient for.
It should be noted that the side of the lens barrel 1 close to the object side refers to the side of the lens barrel 1 close to the object during shooting, that is, the side of the lens barrel 1 where the external incident light enters; the surface of the lens barrel 1 close to the image side refers to the surface of the lens barrel 1 close to the image, that is, the surface of the lens barrel 1 close to the photosensitive chip. In addition, the axial direction of the light passing hole 11 is also the optical axis direction of the lens.
It should be further noted that, the fact that the pressing ring 3 is fixedly arranged in the light-passing hole 11 means that the pressing ring 3 is accommodated in the lens barrel 1, and the pressing ring 3 does not protrude out of the lens barrel 1, taking fig. 3 as an example, the fact that the pressing ring 3 is fixedly arranged in the light-passing hole 11 means that one surface of the pressing ring 3 close to the image side is flush with the second end surface 13 of the lens barrel 1, or one surface of the pressing ring 3 close to the image side is located between the first end surface 12 and the second end surface 13; specifically, the pressing ring 3 is fixedly disposed in the light passing hole 11, the pressing ring 3 may be clamped in the lens barrel 1, or the pressing ring 3 and the lens barrel 1 may be connected by the connecting member 5, and specifically, since the following detailed description will be made on the connection relationship between the pressing ring and the lens barrel, the description of the application is omitted here.
Furthermore, the filter 4 is disposed at an interval with one side of the lens group 2 close to the second end face 13. Because the optical filter 4 is embedded in the first annular groove 31, and the optical filter 4 and one side of the lens group 2 close to the second end face 13 are arranged at intervals, that is, the optical filter 4 and the lens group 2 are spaced apart by the pressing ring 3, the optical filter 4 and the lens group 2 can be prevented from contacting and being damaged.
In the embodiment of the present application, the pressure ring 3 and the optical filter 4 are formed as an integral structure, and the pressure ring 3 and the optical filter 4 are formed as an integral body through an insert molding process.
Wherein, clamping ring 3 and light filter 4 are integrated into one piece structure, can improve clamping ring 3 and light filter 4's bonding strength, and the light filter 4 of being convenient for is connected steadily in clamping ring 3 to make light filter 4 work steadily, the two integrated into one piece simultaneously can reduce the quantity of spare part, and clamping ring 3 and light filter 4 can be prepared in advance and be overall structure, then assemble clamping ring 3 and light filter 4's overall structure in logical unthreaded hole 11, improve assembly efficiency.
Meanwhile, the press ring 3 and the optical filter 4 are integrally formed through an insert molding process, so that the press ring 3 and the optical filter 4 can be better in an integrally formed structure. Specifically referring to fig. 5, the pressure ring 3 and the optical filter 4 are injection molded into an integral structure by a mold 6, and the mold 6 includes: a first clamp 61 and a second clamp 62 which are oppositely arranged, wherein a gap is formed between the first clamp 61 and the second clamp 62, and the first clamp 61 and the second clamp 62 are used for clamping the filter 4 in the gap; the module 63 is sleeved on the outer peripheral wall of the first clamp 61 and the outer peripheral wall of the second clamp 62 along a direction (namely, the up-down direction in fig. 5) perpendicular to the thickness of the optical filter 4, a cavity 64 is formed at the joint of the module 63, the first clamp 61 and the second clamp 62, the shape and size of the cavity 64 are used for matching the shape and size of the press ring 3, the cavity 64 is also used for accommodating the peripheral side edge of the optical filter 4, an injection molding hole 631 is formed in the outer peripheral wall of the module 63, and the injection molding hole 631 is communicated with the cavity 64.
The shape and size of the cavity 64 are matched with those of the pressure ring 3, and the module 63 is provided with the injection hole 631 communicated with the cavity 64, so that raw materials can be injected into the cavity 64 through the injection hole 631 to fill the whole cavity 64 with the raw materials, and then the whole cavity 64 is cooled and molded, so that the integrated structure that the optical filter 4 is embedded into the pressure ring 3 is formed. In addition, the mold 6 is used to injection mold the pressure ring 3 and the optical filter 4 into an integral structure, so that the pressure ring 3 and the optical filter 4 can be stably combined together, and the combination precision of the pressure ring 3 and the optical filter 4 can be improved.
In order to stably connect the pressing ring 3 and the lens barrel 1, in some embodiments, referring to fig. 6, the second end surface 13 is recessed toward the first end surface 12 (i.e., toward the left direction in fig. 6) to form a second annular groove 32 between the inner wall of the lens barrel 1 and the outer wall of the pressing ring 3, the lens further includes a connecting member disposed in the second annular groove 32, and the pressing ring 3 and the lens barrel 1 are connected together through the connecting member. Wherein, because second annular groove 32 is located between the outer wall of clamping ring 3 and the inner wall of lens cone 1, set up the connecting piece in second annular groove 32, can not occupy the space that second terminal surface 13 and clamping ring 3 are close to second terminal surface 13, thereby be convenient for reduce the length dimension of camera lens, and then can increase the interval between second terminal surface 13 and the imaging surface, also increase the burnt size behind the machinery of camera lens, when guaranteeing to adjust the camera lens, light filter 4 can not bump with the sensitization chip that is located the imaging surface, and reduce the equipment tolerance of the spare part that is located between camera lens and the imaging surface.
The connecting piece can be an adhesive, and the pressing ring and the lens barrel can be firmly bonded together by arranging the adhesive in the second annular groove; the connecting piece can also be a ring clamping piece, and the ring clamping piece is embedded into the second annular groove, so that the ring clamping piece is in interference fit with the second annular groove, the pressing ring is abutted, and the pressing ring is prevented from being separated from the lens barrel.
In other embodiments, referring to fig. 7, one surface of the pressing ring 3 facing the second end surface 13 is recessed toward the first end surface 12 to form a second annular groove 32 between the inner wall of the lens barrel 1 and the outer wall of the pressing ring 3, the lens further includes a connecting member disposed in the second annular groove 32, and the pressing ring 3 and the lens barrel 1 are connected together through the connecting member. Similarly, because second annular groove 32 is located between the outer wall of clamping ring 3 and the inner wall of lens cone 1, set up the connecting piece in second annular groove 32, can not occupy the space that second terminal surface 13 and clamping ring 3 are close to second terminal surface 13, thereby be convenient for reduce the length dimension of camera lens, and then can increase the interval between second terminal surface 13 and the imaging surface, also increase the burnt size behind the machinery of camera lens, when guaranteeing to adjust the camera lens, light filter 4 can not collide with the sensitization chip that is located the imaging surface, and reduce the equipment tolerance of the spare part that is located between camera lens and the imaging surface.
In still other embodiments, referring to fig. 8 and 9, the second end surface 13 and one surface of the press ring 3 close to the second end surface 13 are both recessed towards the first end surface 12 to form a second annular groove 32, the lens barrel further includes a connecting member 5 disposed in the second annular groove 32, and the press ring 3 and the lens barrel 1 are connected together through the connecting member 5. Similarly, because second annular groove 32 is located between the outer wall of clamping ring 3 and the inner wall of lens cone 1, set up connecting piece 5 in second annular groove 32, can not occupy the space that second terminal surface 13 and clamping ring 3 are close to second terminal surface 13, thereby be convenient for reduce the length size of camera lens, and then can increase the interval between second terminal surface 13 and the imaging surface, also increase the burnt size behind the machinery of camera lens, when guaranteeing to adjust the camera lens, light filter 4 can not collide with the sensitization chip that is located the imaging surface, and reduce the equipment tolerance of the spare part that is located between camera lens and the imaging surface.
Further, when the connecting member 5 is an adhesive, the adhesive is disposed in the second annular groove 32, and the pressing ring 3 and the lens barrel 1 can be firmly bonded together by the adhesive, especially when the second annular groove 32 is formed by recessing from the second end surface 13 and one surface of the pressing ring 3 close to the second end surface 13 toward the first end surface 12, that is, the second annular groove 32 shown in fig. 8, the second annular groove 32 can accommodate more adhesive, and the connection between the pressing ring 3 and the lens barrel 1 can be firmer.
In addition, compared with the adhesive directly arranged between the outer wall of the pressing ring 3 and the inner wall of the lens barrel 1, the adhesive can overflow to one surface of the pressing ring 3 close to the second end surface 13 (i.e. the right side surface of the pressing ring 3 in fig. 9), and in the embodiment, the adhesive is accommodated in the second annular groove 32 between the inner wall of the lens barrel 1 and the outer wall of the pressing ring 3, and the adhesive is not easy to overflow to the surface of the pressing ring 3 close to the second end surface 13, so that the length of the lens can be reduced. In addition, the optical filter 4 is arranged in the first annular groove 31 of the press ring 3, and the path length from the adhesive to the optical filter 4 is increased in the radial direction (i.e., the up-down direction in fig. 9) of the light through hole 11, so that the adhesive is not easy to overflow to the optical filter 4, and the adhesive is prevented from being adhered to the surface of the optical filter 4 and scattering incident light entering the optical filter 4.
It should be noted that, in the related art, the pressing ring 3 is usually glued in the lens barrel 1, and then the optical filter 4 is glued in the lens barrel 1, that is, in the related art, the pressing ring 3, the optical filter 4, and the lens barrel 1 are connected by gluing twice. And this application embodiment is to inlay the light filter 4 and establishes in the first annular groove 31 of clamping ring 3 to be connected clamping ring 3 and lens cone 1 through setting up the adhesive in second annular groove 32, thereby fix clamping ring 3, light filter 4 in lens cone 1, it is connected through the three that once gluing realization clamping ring 3, light filter 4, lens cone 1 to see this application embodiment, compare correlation technique, the packaging efficiency of this application embodiment is higher, can reduce the fit tolerance between each spare part simultaneously.
In addition, when each part is installed in the lens, drying processing is usually performed once every time gluing is performed, connection among the three parts of the pressure ring 3, the optical filter 4 and the lens barrel 1 is realized through twice gluing in the related technology, that is, drying processing needs to be performed twice, and connection among the three parts of the pressure ring 3, the optical filter 4 and the lens barrel 1 can be realized through once gluing in the embodiment of the application, so that the embodiment of the application only needs to perform drying once, and compared with the related technology, the deformation probability of each part (such as the pressure ring 3, the lens barrel 1, the optical filter 4 and the like) in the lens in the embodiment of the application is low.
The adhesive may be UV glue, epoxy glue, or the like, as long as the pressing ring 3 and the lens barrel 1 can be firmly bonded together, and the present application is not particularly limited.
Referring to fig. 10, in a radial direction (up-down direction in fig. 10) of the light-passing hole 11, i.e., in a direction perpendicular to the optical axis of the lens, a difference between an inner diameter of the second annular groove 32 and an outer diameter of the second annular groove 32 is a width of the second annular groove 32, and the width of the second annular groove 32 gradually increases from the object side toward the image side.
The width of the second annular groove 32 gradually increases from the object side to the image side, so that the groove wall of the second annular groove 32 is inclined, the adhesive area between the adhesive and the outer wall of the pressing ring 3 and between the adhesive and the inner wall of the lens barrel 1 can be increased, and the connection strength between the pressing ring 3 and the lens barrel 1 is improved. In addition, the width of the second annular groove 32 gradually decreases from the object side to the image side, and similarly, the groove wall of the second annular groove 32 is inclined, so that the adhesive area between the adhesive and the outer wall of the pressing ring 3 and the inner wall of the lens barrel 1 is increased, and the connection strength between the pressing ring 3 and the lens barrel 1 is improved.
In the embodiment of the present application, in order to make the connection between the pressing ring 3 and the inner wall of the lens barrel 1 more firm, and to enable the optical filter 4 to be stably embedded in the first annular groove 31 of the pressing ring 3, detailed research and experiments are performed on specific parameters of the second annular groove 32 and the fit between the pressing ring 3 and the optical filter 4.
First, explanation is made on the structure and specific parameters of the second annular groove 32, in the embodiment of the present application, in the axial direction of the light passing hole 11, one side of the second annular groove 32 close to the second end surface 13 is a notch 321, one side of the second annular groove 32 close to the first end surface 12 is a groove bottom 322, and the width of the notch 321 is greater than the width of the groove bottom 322. The notch 321 is a surface of the second annular groove 32 close to the second end surface 13, that is, the notch 321 is located on the outward surface of the lens barrel 1, and the width of the notch 321 is greater than the width of the groove bottom 322, so that the processing of the second annular groove 32 is facilitated, and the glue dispensing device can perform the glue dispensing process on the second annular groove 32.
Furthermore, in the axial direction along the light through hole 11, the distance between the notch 321 and the groove bottom 322 is A, and A is more than or equal to 0.15 mm; the width of the notch 321 along the radial direction of the light through hole 11 is B, and B is more than or equal to 0.15 mm.
When the distance a between the notch 321 and the groove bottom 322 is greater than or equal to 0.15mm, the adhesive area between the pressing ring 3 and the lens barrel 1 can be increased in the axial direction of the light through hole 11, so that the connection strength between the pressing ring 3 and the lens barrel 1 is improved. It should be noted that the distance a between the notch 321 and the groove bottom 322 is greater than or equal to 0.15mm, and may be, specifically, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.20mm, and the like, and the present application is not limited thereto.
Still further, when the width B of the notch 321 is greater than or equal to 0.15mm, on the one hand, the surface area of the side wall of the second annular groove 32 is increased, so that the adhesive bonding area between the pressing ring 3 and the lens barrel 1 is increased, the connection strength between the pressing ring 3 and the lens barrel 1 is further increased, and on the other hand, the adhesive bonding equipment is convenient to perform adhesive bonding treatment on the second annular groove 32 from the notch 321. The width B of the notch 321 is greater than or equal to 0.15mm, and may be, specifically, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.20mm, and the like, which is not limited in this application.
In some embodiments, when the lens barrel is of a 3P structure, that is, when the lens group 2 includes 3 lenses, the inner diameter of the lens barrel 1 is 2.5mm, the outer diameter of the press ring 3 is 2.51mm, and when a is 0.15mm and B is 0.15mm, the push ring 3 located in the lens barrel 1 is subjected to a thrust test, the thrust gauge indicates 100g, and it can be seen that the adhesive strength of the press ring 3 in the lens barrel 1 meets the requirement of the reliability test.
In other embodiments, when the lens barrel is of a 4P structure, that is, when the lens group 2 includes 4 lenses, the inner diameter of the lens barrel 1 is 3mm, the outer diameter of the press ring 3 is 3.01mm, and when a is 0.15mm and B is 0.15mm, the push ring 3 in the lens barrel 1 is subjected to a thrust test, the thrust gauge displays 200g, and it can be seen that the adhesive strength of the press ring 3 in the lens barrel 1 meets the requirement of the reliability tolerance test.
In the embodiment of the present application, in the axial direction along the light passing hole 11, the end face of the pressure ring 3 close to the second end face 13 is arranged at an interval from the second end face 13.
Wherein, because the clamping ring 3 is embedded in the clear aperture 11, and the terminal surface that the clamping ring 3 is close to second terminal surface 13 sets up with second terminal surface 13 interval, also promptly the clamping ring 3 holding in lens cone 1, and does not bulge lens cone 1 to can protect optical filter 4 and clamping ring 3, reduce the impaired probability of the two, when the position of adjustment camera lens simultaneously, can prevent that the camera lens from colliding with the sensitization chip that is located second terminal surface 13 one side in the in-process of adjustment.
Furthermore, the end face of the pressure ring 3 close to the second end face 13 is arranged in parallel with the second end face 13, and the distance between the end face of the pressure ring 3 close to the second end face 13 and the second end face 13 is C along the axial direction of the light through hole 11, wherein C is more than or equal to 0.02 mm.
The end face of the pressure ring 3 close to the second end face 13 is parallel to the second end face 13, so that the optical filter 4 in the pressure ring 3 is parallel to the second end face 13, light passing through the optical filter 4 can be uniformly emitted to the photosensitive chip 10b, and brightness of a displayed image is uniform. And when C is larger than or equal to 0.02mm, the damage probability of the pressure ring 3 and the optical filter 4 is reduced while the length size of the lens is small.
It should be noted that, the distance between the end face of the pressing ring 3 close to the second end face 13 and the second end face 13 may be 0.02mm, 0.021mm, 0.022mm, 0.023mm, 0.024mm, 0.025mm, and the like, as long as the length and the size of the lens are small, and the damage probability of the pressing ring 3 and the optical filter 4 is reduced, the value of C is not specifically limited in this application.
Next, the fitting between the pressing ring 3 and the filter 4 will be explained in detail, specifically referring to FIG. 11, the thickness of the pressing ring 3 along the axial direction of the light passing hole 11 is D, and D is not less than 0.30 mm. Wherein, the thickness D of clamping ring 3 is more than or equal to 0.30mm, and when the optical filter 4 is embedded into the first annular groove 31 of the clamping ring 3, the clamping ring 3 can be stably molded.
Further, the optical filter is arranged in parallel with the pressure ring; the distance between the end face of the filter 4 close to the first end face 12 (i.e. the left side face of the filter 4 in fig. 11) and the end face of the press ring 3 close to the first end face 12 (i.e. the left side face of the press ring 3 in fig. 11) is E, and 0.5D > E > 0.3D; the distance between the end face of the filter 4 close to the second end face 13 (i.e. the right side face of the filter 4 in fig. 11) and the end face of the pressure ring 3 close to the second end face 13 is F, and 0.5D > F > 0.3D.
When the optical filter 4 is accommodated in the first annular groove 31, the part of the pressure ring 3 between one surface close to the first end surface 12 and the first annular groove 31 and the part of the pressure ring 3 between one surface close to the second end surface 13 and the first annular groove 31 are not easy to deform and crack, so that the optical filter 4 is stably accommodated in the first annular groove 31.
Referring to fig. 11, the depth of the filter 4 embedded in the first annular groove 31 along the radial direction of the pressing ring 3 is G, and G is greater than or equal to 0.10 mm. When the depth G of the optical filter 4 embedded in the first annular groove 31 is greater than or equal to 0.10mm, the optical filter 4 is not easy to fall off from the first annular groove 31, so that the optical filter 4 is stably accommodated in the first annular groove 31.
It should be noted that the depth of the first annular groove 31 may be 0.10mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.20mm, etc. The present application is not particularly limited as long as the filter 4 can be stably accommodated in the first annular groove 31.
It should be further noted that, in the radial direction of the pressure ring 3, the depth of the optical filter 4 embedded in the first annular groove 31 includes a fitting depth of the first annular groove 31 and the end face of the optical filter 4 close to the image side, and a fitting depth of the first annular groove 31 and the end face of the optical filter 4 close to the object side.
In the embodiment of the present application, the optical filter 4 is embedded in the first annular groove 31 to divide the inner wall of the pressure ring 3 into a first pressure ring portion 3a close to the first end face 12 (i.e., a portion of the pressure ring 3 on the left side of the optical filter 4 in fig. 11) and a second pressure ring portion 3b close to the second end face 13 (i.e., a portion of the pressure ring 3 on the right side of the optical filter 4 in fig. 11), and the inner diameter of the first pressure ring portion 3a gradually decreases in a direction away from the first end face 12 and the inner diameter of the second pressure ring portion 3b gradually increases in a direction away from the first end face 12 in the axial direction of the light-passing hole 11 (i.e., in the left-right direction in fig.
Since the incident light entering the lens barrel 1 passes through one side of the first end face 12 of the lens barrel 1, the lens group 2, the first ring pressing part 3a, the optical filter 4, the second ring pressing part 3b and one side of the second end face 13 of the lens barrel 1 in sequence, the inner diameter of the first ring pressing part 3a is gradually reduced in the direction away from the first end face 12, and the incident amount of the incident light blocked by the first ring pressing part 3a is reduced on the premise that the first ring-shaped groove 31 has enough depth to ensure that the optical filter 4 is stably embedded in the first ring-shaped groove 31, so that the incident amount of the incident light entering the optical filter 4 is increased; meanwhile, the inner diameter of the second press ring part 3b is gradually increased in the direction away from the first end face 12, so that the first annular groove 31 has enough depth to ensure that the optical filter 4 is stably embedded in the first annular groove 31, the emergent quantity of emergent rays of the optical filter 4 blocked by the second press ring part 3b is reduced, and more rays can pass through the optical filter 4 conveniently.
Referring to fig. 11 and 12, the optical filter 4 is used to allow incident light to pass through, a distance between the incident light entering the outermost side of the optical filter 4 and one side of the first pressure ring portion 3a close to the optical filter 4 is H, H is greater than or equal to 0.05mm, that is, a certain distance is reserved between the incident light entering the outermost side of the optical filter 4 and one side of the first pressure ring portion 3a close to the optical filter 4, and the reserved distance can prevent the inner wall of the first pressure ring portion 3a from blocking the light entering the optical filter 4, so that the light can better enter the optical filter 4.
Meanwhile, the distance between the incident light entering the outermost side of the optical filter 4 and the side, close to the optical filter 4, of the second pressure ring part 3b is J, and J is larger than or equal to 0.05 mm. A certain distance is reserved between the incident light entering the outermost side of the optical filter 4 and one side of the second pressure ring part 3b close to the optical filter 4, and the light passing through the optical filter 4 can be prevented from being blocked by the inner wall of the second pressure ring part 3b through the reserved distance, so that the light can better pass through the optical filter 4.
It should be noted that H may be 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.1mm, etc., and the present application is not limited thereto; j may be 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.1mm, etc., and the present application is not limited thereto.
The lens, the camera module, the electronic device and the mold disclosed in the embodiments of the present invention are described in detail, and the principle and the implementation manner of the present invention are explained in the present document by applying specific examples, and the description of the above embodiments is only used to help understanding the lens, the electronic device, the mold for manufacturing the lens and the core idea of the lens of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (17)
1. A lens barrel characterized by comprising:
the lens barrel is provided with a light through hole, and the lens barrel is provided with a first end surface close to an object side and a second end surface close to an image side in the axial direction of the light through hole;
the lens group is accommodated in the light through hole;
the pressing ring is fixedly arranged in the light through hole, abuts against one side, close to the second end face, of the lens group, and the inner wall of the pressing ring is recessed towards the outer wall of the pressing ring to form a first annular groove;
and the peripheral edge of the optical filter is embedded in the first annular groove.
2. The lens barrel according to claim 1, wherein the press ring and the optical filter are integrally formed, and the press ring and the optical filter are integrally formed by an insert molding process.
3. The lens barrel according to claim 1 or 2,
the second end surface is recessed towards the direction of the first end surface so as to form a second annular groove between the inner wall of the lens cone and the outer wall of the pressing ring; or one surface of the pressing ring facing the second end surface is recessed towards the direction of the first end surface, so that a second annular groove is formed between the inner wall of the lens cone and the outer wall of the pressing ring; or the second end face and one face, close to the second end face, of the compression ring are both recessed towards the first end face to form a second annular groove;
the lens further comprises a connecting piece arranged in the second annular groove, and the pressing ring is connected with the lens barrel through the connecting piece.
4. A lens barrel according to claim 3, wherein the connecting member is an adhesive.
5. The lens barrel according to claim 3, wherein an axial direction of the light-passing hole is an optical axis direction of the lens barrel, a difference between an inner diameter of the second annular groove and an outer diameter of the second annular groove in a radial direction along the light-passing hole is a width of the second annular groove, and the width of the second annular groove gradually increases or gradually decreases from the object side toward the image side.
6. The lens barrel according to claim 5, wherein in an axial direction of the light passing hole, a side of the second annular groove close to the second end surface is a notch, a side of the second annular groove close to the first end surface is a groove bottom, and a width of the notch is larger than a width of the groove bottom.
7. The lens barrel according to claim 6, wherein in the axial direction of the light passing hole, the distance between the notch and the groove bottom is A, and A is more than or equal to 0.15 mm; and/or the width of the notch in the radial direction of the light through hole is B, wherein B is more than or equal to 0.15 mm.
8. The lens barrel according to claim 1 or 2, wherein the press ring is provided at an interval from the second end surface at an end surface close to the second end surface in an axial direction of the light passing hole.
9. The lens according to claim 8, wherein an end face of the press ring close to the second end face is arranged in parallel with the second end face, and a distance between the end face of the press ring close to the second end face and the second end face is C along an axial direction of the light through hole, wherein C is greater than or equal to 0.02 mm.
10. The lens barrel according to claim 1 or 2, wherein the compression ring has a thickness D in the axial direction of the light through hole, wherein D is greater than or equal to 0.30 mm;
and/or the depth of the optical filter embedded into the first annular groove in the radial direction of the pressure ring is G, and G is more than or equal to 0.10 mm.
11. The lens barrel according to claim 10, wherein the optical filter is disposed in parallel with the pressure ring;
in the axial direction of the light through hole, the distance between the end face of the optical filter close to the first end face and the end face of the compression ring close to the first end face is E, and 0.5D & gtE & gt 0.3D; and/or in the axial direction of the light through hole, the distance between the end face of the optical filter close to the second end face and the end face of the compression ring close to the second end face is F, and 0.5D & gtF & gt 0.3D.
12. The lens barrel according to claim 1 or 2, wherein the optical filter is embedded in the first annular groove to divide an inner wall of the pressure ring into a first pressure ring portion close to the first end surface and a second pressure ring portion close to the second end surface, an inner diameter of the first pressure ring portion gradually decreases in a direction away from the first end surface and an inner diameter of the second pressure ring portion gradually increases in a direction away from the first end surface in an axial direction of the light passing hole.
13. The lens barrel according to claim 12, wherein the optical filter is configured to allow incident light to pass through, a distance between the incident light entering the outermost side of the optical filter and a side of the first press ring portion close to the optical filter is H, and H is greater than or equal to 0.05 mm; and/or the distance between the incident light entering the outermost side of the optical filter and one side of the second pressure ring part close to the optical filter is J, and the J is more than or equal to 0.05 mm.
14. The lens barrel according to claim 1 or 2, wherein the optical filter is spaced from a side of the lens group close to the second end surface in an axial direction of the light passing hole.
15. The utility model provides a camera module which characterized in that includes:
a lens barrel as claimed in any one of claims 1 to 14;
the photosensitive chip is arranged at the image side end of the lens and used for receiving the light rays transmitted from the lens to perform imaging.
16. An electronic device, characterized in that the electronic device comprises the camera module of claim 15.
17. A mold for embedding a filter in a press ring by injection molding, comprising:
the optical filter comprises a first clamp and a second clamp which are arranged oppositely, wherein a gap is formed between the first clamp and the second clamp, and the first clamp and the second clamp are used for clamping the optical filter in the gap;
the module, the perpendicular to is followed to the module the direction cover of the thickness of light filter is established on the periphery wall of first anchor clamps with on the second anchor clamps periphery wall, the module first anchor clamps the junction of second anchor clamps forms the die cavity, the shape and the size of die cavity are used for matcing the shape and the size of clamping ring, the die cavity still is used for holding the week side edge of light filter, be equipped with the hole of moulding plastics on the periphery wall of module, mould plastics the hole with the die cavity intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110592379.XA CN113391420A (en) | 2021-05-28 | 2021-05-28 | Lens, camera module, electronic equipment and mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110592379.XA CN113391420A (en) | 2021-05-28 | 2021-05-28 | Lens, camera module, electronic equipment and mould |
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| Publication Number | Publication Date |
|---|---|
| CN113391420A true CN113391420A (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110592379.XA Pending CN113391420A (en) | 2021-05-28 | 2021-05-28 | Lens, camera module, electronic equipment and mould |
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| CN (1) | CN113391420A (en) |
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| CN209167625U (en) * | 2018-12-05 | 2019-07-26 | 南昌欧菲生物识别技术有限公司 | Lens module, camera module and electronic device |
| CN212364678U (en) * | 2020-05-25 | 2021-01-15 | 南昌欧菲光电技术有限公司 | Filter assembly and camera module |
| CN112558279A (en) * | 2020-12-18 | 2021-03-26 | 湖北云泰时代光学仪器有限公司 | High-definition wide-angle lens |
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| CN201194039Y (en) * | 2008-04-22 | 2009-02-11 | 邱菊珍 | Optical filter assembly component |
| CN105807383A (en) * | 2016-05-19 | 2016-07-27 | 广东旭业光电科技股份有限公司 | Optical lens and electronic equipment applying same |
| CN206074975U (en) * | 2016-08-29 | 2017-04-05 | 昆山丘钛微电子科技有限公司 | Camera module optical filter and pedestal integrated formed structure |
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Application publication date: 20210914 |