A vibration reduction lens suitable for mounting a metasurface lens and a conventional lens group

Abstract

The present invention discloses a vibration reduction lens suitable for installing a metasurface lens and a traditional lens group, comprising a metasurface lens fixing ring, a lens barrel body and a lens barrel outer wall, wherein the metasurface lens fixing ring is used to fix the metasurface lens and perform the first-level vibration reduction, the lens barrel body provides a traditional lens group installation space and performs the second-level vibration reduction, and the lens barrel outer wall is used to limit the position of the metasurface lens fixing ring to ensure the stability of the connection of the two lens barrel inner walls constituting the lens barrel body. The vibration reduction lens provided by the present invention uses a metasurface lens fixing ring and a buffer part to perform secondary vibration reduction on the metasurface lens, thereby avoiding the problem that a single vibration reduction method has insufficient vibration reduction ability and is difficult to simultaneously protect the metasurface lens substrate and microstructure. The combined installation of the metasurface lens and the traditional lens group is also realized.

Description

Technical Field

[0001] The present invention belongs to the field of optical lenses, and more specifically, relates to a vibration reduction lens suitable for installing a super-surface lens and a traditional lens group. Background Art

[0002] With the development of science and technology, people's requirements for imaging quality have also increased. Aberration correction, as the main means to improve imaging quality, often requires sacrificing system complexity (such as using aspheric mirrors and complex optical systems) to achieve it. The use of metasurface lenses can achieve wavefront control efficiently, simply and at low cost. Combined with traditional lens groups, it can greatly reduce the complexity of the imaging system while ensuring high-quality imaging quality.

[0003] However, the current lens installation technology is not suitable for the installation of metasurface lenses and traditional lens groups, which has the following problems:

[0004] First, the current shock-absorbing lenses cannot meet the protection requirements of metasurface lenses. Metasurface lenses are fragile, and their microstructures are delicate and easily damaged. They require effective shock-absorbing designs to avoid damage caused by various mechanical destructive behaviors during use. The currently commonly used shock-absorbing solution is to use a buffer layer to wrap the entire system or a single lens. The utility model patent "An optical lens with anti-fall function" (grant number: CN207650477U, grant announcement date: July 24, 2018) achieves shock absorption by creating a cavity between the inner shell and the outer shell to wrap the entire lens barrel; while the utility model patent "A mobile phone imaging lens" (grant number: CN208421367U, grant announcement date: January 22, 2019) achieves shock absorption by using buffer rubber on the surface of the installation. This shock absorption method has a single structure and cannot meet the protection requirements for more fragile lens components;

[0005] Second, the non-detachable structure used by traditional lenses has high maintenance costs, which easily leads to material waste and increases the cost of use. Metasurface lenses are high-precision devices. If traditional fixed lenses are used, their maintenance costs will increase significantly, and they will cause material waste and are not environmentally friendly. Currently, there is no detachable installation structure specifically for metasurface lenses;

[0006] Third, the current lens is only suitable for the installation of traditional lens groups, and cannot achieve the joint installation of metasurface lenses and traditional lens groups. Summary of the invention

[0007] In view of the defects of the prior art, the purpose of the present invention is to provide a shock-absorbing lens suitable for installing a metasurface lens and a traditional lens group, aiming to use a buffer coating and a spring to reduce the shock of the metasurface lens and reduce maintenance costs through detachable installation.

[0008] The present invention firstly utilizes a super-surface lens fixing ring containing a buffer material coating to perform the first-level shock reduction on the super-surface lens, and places buffer rubber on each wall of the lens groove to reduce the shock of the traditional lens group. The sliding part of the super-surface lens fixing ring is finally placed on the buffer part to perform the second-level shock reduction on the super-surface lens to meet the requirements of shock reduction on the super-surface lens. At the same time, the first-level fixation is performed by the joint installation of the concave mold and the convex mold between the inner walls of the two lens barrels; the second-level fixation is performed by the outer wall of the lens barrel to protect the lens barrel body and the components installed thereon.

[0009] To achieve the above-mentioned purpose, the present invention provides a vibration reduction lens suitable for installing a metasurface lens and a traditional lens group, wherein the vibration reduction lens comprises, from the outside to the inside, an outer wall of a lens barrel, a lens barrel body and a metasurface lens fixing ring, wherein a buffer coating is disposed between the metasurface lens fixing ring and the metasurface lens. The metasurface lens fixing ring is used to fix the metasurface lens and perform the first-level vibration reduction, the lens barrel body provides a space for installing a traditional lens group and performs the second-level vibration reduction, and the outer wall of the lens barrel is used to limit the position of the metasurface lens fixing ring, so as to ensure the stability of the joint of the two inner walls of the lens barrel constituting the lens barrel body.

[0010] Furthermore, the metasurface lens fixing ring is composed of two groups of shock-absorbing fixing rings with the same structure connected up and down, and each joint side has two groups of positioning connection convex molds and positioning connection concave molds for connecting the two groups of shock-absorbing fixing rings with the same structure. The metasurface lens is fixed in the middle of the two, and two sliding parts are symmetrically provided on the edge of each shock-absorbing fixing ring.

[0011] Furthermore, the connection line of the two groups of positioning and connecting convex dies and the connection line of the two groups of positioning and connecting concave dies are perpendicular to each other.

[0012] Furthermore, the lens barrel body is composed of four threaded holes on the barrel wall from top to bottom, a first damping fixing ring slide groove and a buffer part, a second damping fixing ring slide groove and a buffer part, a stop ring and a lens groove formed by the space between the stop rings, and four threaded holes on the barrel wall. The lens barrel body is composed of two groups of lens barrel inner walls with the same structure symmetrically joined, and two groups of lens barrel convex molds and lens barrel concave molds are provided on the joint sides for connection. The first damping fixing ring slide groove, the second damping fixing ring slide groove, the super surface lens buffer part and three stop rings are provided on each group of lens barrel inner walls. One end of the first damping fixing ring slide groove and the second damping fixing ring slide groove is used to place the sliding part of the damping fixing ring, and the other end is provided with a super surface lens buffer part above and below for damping the super surface lens fixing ring; the three stop rings form two lens grooves for placing the traditional lens group. The buffer part is located at the end point of clockwise rotation along the slide groove, and is composed of a buffer unit and a mounting column. The lower surface of the upper limiting ring of the lens slot, the upper surface of the lower limiting ring and the inner surface of the inner wall of the lens barrel between the two limiting rings are also provided with a buffer rubber layer. The outer wall of the lens barrel is composed of two first slot filling outer walls and two second slot filling outer walls. The convex mold of the first slot filling outer wall is spliced ​​with the concave mold of the second slot filling outer wall, and the convex mold of the second slot filling outer wall is spliced ​​with the concave mold of the first slot filling outer wall. From top to bottom, the outer wall of the lens barrel is a light-transmitting hole, an upper outer wall threaded hole, an upper slot filling part, a lower slot filling part and a lower outer wall threaded hole.

[0013] The super-surface lens fixing ring of the vibration-absorbing lens provided by the present invention matches the groove shapes at the sliding part and the buffer part of the first vibration-absorbing fixing ring and the second vibration-absorbing fixing ring.

[0014] In the present invention, the male and female dies of the fixing ring positioning connection portion are distributed alternately at intervals of 90° with respect to the center of the ring.

[0015] In the present invention, the rubber pads at the front ends of the upper and lower springs of the buffer part should abut against the sliding part of the fixing ring, that is, the distance between the rubber pads at the ends of the two springs when not abutted should be less than the groove width.

[0016] In the present invention, the threaded holes on the barrel wall correspond to the threaded holes on the outer wall.

[0017] Furthermore, the shape of the super-surface lens fixing ring punch, the sliding groove, and the groove filling outer wall filling groove portion are all fan-shaped ring columns or are composed of fan-shaped ring columns.

[0018] Furthermore, the sliding portion of the super-surface lens fixing ring and the concave mold group or the convex mold group in the connecting portion are on the same diameter.

[0019] Furthermore, the length of the limiting ring meets the lens spacing requirement.

[0020] Furthermore, the limiting ring is fixedly connected to the inner wall of the lens barrel.

[0021] Furthermore, the buffer rubber is bonded to the limit ring and the inner wall of the lens barrel, and the buffer material is bonded to the super-surface lens fixing ring.

[0022] Furthermore, the convex mold and the inner wall of the lens barrel, and the positioning connection convex mold and the shock-absorbing fixing ring are welded.

[0023] Compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

[0024] (1) The metasurface lens is different from the traditional lens. It is composed of a thin substrate and a precise microstructure, so the substrate and the microstructure need to be damped at the same time. The damping lens provided by the present invention uses a metasurface lens fixing ring and a buffer part to perform secondary damping on the metasurface lens, avoiding the problem that the damping ability of a single damping method is insufficient and it is difficult to simultaneously protect the metasurface lens substrate and the microstructure. The metasurface lens fixing ring adopts a damping scheme of a buffer material layer, which has a light structure and a large buffering area, reduces the contact pressure between the metasurface lens and the fixing ring, and effectively protects the thin metasurface lens substrate from deformation under external force; the buffer part can adopt a spring damping scheme to ensure that the precise microstructure of the metasurface lens is not damaged under a smaller buffering area. The above two-level damping scheme protects the substrate and microstructure of the metasurface lens at the same time, meeting the requirements of the metasurface lens for damping.

[0025] (2) The detachable installation method used in the present invention effectively reduces the cost of replacement and maintenance. The structures such as the punch, die, slide, sliding part and threaded hole ensure the detachable connection between the main components, avoiding the problems of being unable to replace and high maintenance costs caused by direct gluing.

[0026] (3) The present invention realizes the joint installation of the metasurface lens and the traditional lens group. The metasurface lens fixing ring is used to install the metasurface lens, which solves the problem that the metasurface lens is incompatible with the traditional lens barrel. The lens barrel body and the outer wall of the lens barrel enable the fixing ring on which the metasurface lens is installed to be installed together with the traditional lens group. The buffer rubber realizes the shock absorption of the traditional lens group in a relatively simple way, thereby realizing the joint installation of the metasurface lens and the traditional lens group at a relatively low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional exploded schematic diagram of a vibration reduction lens provided by an embodiment of the present invention;

[0028] Figure 2 is a front view of the relative installation position in an embodiment of the present invention;

[0029] Figure 3 is a schematic diagram of the back side of the relative installation position in an embodiment of the present invention;

[0030] Figure 4 is a schematic diagram of the structure of a metalens fixing ring in an embodiment of the present invention;

[0031] Figure 5is a side view of the lens barrel body in an embodiment of the present invention;

[0032] Figure 6 is a schematic diagram of the outer side of the outer wall of the lens barrel in an embodiment of the present invention;

[0033] Figure 7 is a schematic diagram of the inner side of the outer wall of the lens barrel in an embodiment of the present invention;

[0034] Figure 8 is a schematic diagram of the inner side of the first slot filling outer wall and the second slot filling outer wall in an embodiment of the present invention;

[0035] Figure annotation:

[0036] 1. Super surface lens fixing ring; 11. Shock-absorbing fixing ring; 111. Sliding part; 112. Positioning connection convex mold; 113. Positioning connection concave mold; 114. Buffer coating; 2. Lens barrel body; 21. Inner wall of lens barrel; 211. First shock-absorbing fixing ring slide groove; 212. Second shock-absorbing fixing ring slide groove; 213. Super surface lens buffer part; 214. Limiting ring; 215. Lens groove; 216. Lens barrel convex mold; 217. Lens barrel concave mold; 218. Buffer rubber layer; 219. Thread on barrel wall Hole; 2131, mounting column; 2132, shock absorbing unit; 2141, upper limit ring; 2142, middle limit ring; 2143, lower limit ring; 3, outer wall of lens barrel; 31, first slot-filling outer wall; 32, second slot-filling outer wall; 301 outer wall punch; 302, outer wall die; 303, outer wall threaded hole; 304, light-through hole; 311, first slot-filling part; 321, second slot-filling part; 4, traditional lens group; 41, first positive lens; 42, second positive lens; 5, metasurface lens. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] It should be understood that, although the terms used herein first, second, etc. can describe each element, these elements should not be limited by these terms. These terms are only used to distinguish an element from another element. These terms do not necessarily mean a specific order or arrangement of elements. Therefore, without departing from the description and teaching of each embodiment, the first element described below can be referred to as the second element. In addition, the term "comprising" and any variation thereof are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0039] In the drawings, the shapes and sizes of elements may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or similar elements. Here, the thickness, size and shape of elements have been slightly exaggerated for convenience of description.

[0040] Combination Figure 1As shown, the present invention provides a detachable shock-absorbing lens suitable for installing a metasurface lens and a traditional lens group, comprising a metasurface lens fixing ring 1, a lens barrel body 2, a lens barrel outer wall 3, a first positive lens 41, a second positive lens 42, and a metasurface lens 5. The metasurface lens fixing ring 1 is composed of two shock-absorbing fixing rings 11 joined up and down. The metasurface lens 5 is placed in the accommodating space between the two shock-absorbing fixing rings 11. A sliding portion 111 is provided on the edge of the shock-absorbing fixing ring 11, and the two fixing rings should each have two sets of positioning connection convex molds 112 and positioning connection concave molds 113 on the close side to determine the joining position of the two shock-absorbing fixing rings 11 when installing. A buffer coating 114 is provided between the metasurface lens fixing ring 1 and the metasurface lens 5 to reduce the shock of the metasurface lens 5. The lens barrel body 2 is composed of two lens barrel inner walls 21 joined left and right, and a first shock-absorbing fixed ring slide groove 211 and a second shock-absorbing fixed ring slide groove 212 are provided on each lens barrel inner wall. One end of the first shock-absorbing fixed ring slide groove 211 and the second shock-absorbing fixed ring slide groove 212 is used to place the sliding part 111 of the shock-absorbing fixed ring 11, and the upper and lower ends of the other ends are provided with a super-surface lens buffer part 213, which is used to shock the super-surface lens fixed ring 1 and the inner super-surface lens 5. Each buffer part includes two mounting posts 2131 and a shock-absorbing unit 2132. The two buffer parts 213 are symmetrically distributed about the first shock-absorbing fixed ring slide groove 211 and the second shock-absorbing fixed ring slide groove 212, and the two springs of each shock-absorbing unit 2132 are respectively installed on the two mounting posts 2131. There are three stop rings 214 at the lower end of the lens barrel, and the space between two adjacent stop rings forms two lens grooves 215. The stop ring 214 is composed of an upper stop ring 2141, an intermediate stop ring 2142, and a lower stop ring 2143. The lower surface of the upper stop ring 2141, the upper surface of the lower stop ring 2143, and the upper and lower surfaces of the intermediate stop ring 2142 are all provided with a buffer rubber layer 218 to buffer the first positive lens 41 and the second positive lens 42. The first positive lens 41 is placed between the upper stop ring 2141 and the intermediate stop ring 2142, and the second positive lens 42 is placed between the intermediate stop ring 2142 and the lower stop ring 2143. The two sides of the inner walls 21 of the two lens barrels are close to each other, and there are two groups of lens barrel convex molds 216 and correspondingly engaged lens barrel concave molds 217 for engagement between the inner walls of the lens barrels during installation. Each inner wall of the lens barrel is provided with two groups of barrel wall threaded holes 219 at the upper and lower sides. There is a lens barrel outer wall 3 on the outside of the lens barrel body, which is composed of two first groove-filling outer walls 31 and two second groove-filling outer walls 32 connected front and back. The first groove-filling outer wall 31 has a first groove-filling portion 311 on the inner side corresponding to the first shock-absorbing fixed ring groove 211 and its super-surface lens buffer portion 213, and the second groove-filling outer wall 32 has a first groove-filling portion 321 on the inner side corresponding to the second shock-absorbing fixed ring groove 212 and its super-surface lens buffer portion 213.The upper slot filling outer wall 31 and the lower slot filling outer wall are both provided with an outer wall convex mold 301 on one side and a corresponding outer wall concave mold 302 on the other side. The lens barrel outer wall 3 is composed of the outer wall convex mold 301 of the first slot filling outer wall 31 and the outer wall concave mold 302 of the second slot filling outer wall 32 spliced ​​radially; the outer wall convex mold 301 of the second slot filling outer wall 32 and the outer wall concave mold 302 of the first slot filling outer wall 31 are spliced ​​radially. The first slot filling outer wall 31 and the second slot filling outer wall 32 are both provided with outer wall threaded holes 303 corresponding to the barrel wall threaded holes 219 at positions corresponding to the barrel wall threaded holes 219. After the splicing is completed, the lens barrel body 2 and the lens barrel outer wall 3 can be fixed as a whole to ensure the stability of the overall structure. At the top of the lens barrel outer wall is a light hole 304 surrounded by the top protrusions of the two first slot filling outer walls 31 and the two second slot filling outer walls 32.

[0041] In this embodiment, the vibration reduction lens is used to install a metasurface lens, a first positive lens, a second positive lens, the positive lens frame is used as a vignetting stop, and the front surface of the metasurface lens is used as an aperture stop.

[0042] The shape of the supersurface fixing ring sliding part 111 is a fan ring, which can limit the radial relative movement of the inner walls of the two barrels after installation. The positioning connection convex mold 112 and the positioning connection concave mold 113 are both rectangular parallelepiped to facilitate the determination of the position of the sliding part 111.

[0043] The first shock-absorbing fixed ring groove 211 and the second shock-absorbing fixed ring groove 212 are both fan-shaped, and the center distance is the same as the center distance of the upper and lower punches after the two fixed rings are joined to ensure that the supersurface lens fixed ring sliding part 111 can be placed in the upper fixed ring groove 211 and the lower fixed ring groove 212 and can slide freely.

[0044] The width of the slide groove at the corresponding position of the buffer part 213 is slightly larger than the remaining slide groove to provide the space required for the deformation of the spring and rubber pad during shock absorption, providing a certain buffer space. The shock absorbing unit 2132 is installed on the mounting column 2131 and is composed of a rubber pad and a spring. After the installation is completed, the rubber pads at the front end of the upper and lower springs of the buffer unit should be against the sliding part 111 of the fixed ring, that is, the distance between the rubber pads at the ends of the two springs when they are not against should be less than the groove width, to ensure the position of the super surface lens fixing ring 1 in the absence of vibration and the shock absorbing effect of the shock absorbing unit 2132 on the super surface lens fixing ring 1 when there is vibration.

[0045] The width of the middle limiting ring 2142 of the limiting ring 214 is slightly smaller than that of the upper limiting ring 2141 and the lower limiting ring 2143 . The two lenses are installed in the two lens grooves with the convex surfaces of the first positive lens 41 and the second positive lens 42 facing each other.

[0046] The connecting line of the two axial threaded holes 219 and the outer wall threaded hole 303 on the inner wall 21 of each lens barrel is parallel to the semicircular ring column generatrix of the inner wall 21 of the lens barrel, and the connecting line of the two transversely distributed threaded holes 219 on the inner wall 21 of each lens barrel is perpendicular to each generatrix and the angle between them about the center of the circle is 90°.

[0047] The geometric shapes of the raised parts in the first slot filling part 311 and the second slot filling part 312 are both fan-shaped to ensure that they match the shapes of the upper fixed ring slot 211, the lower fixed ring slot 212 and the buffer part 213, and their ring widths are slightly smaller than the ring widths of the slot parts.

[0048] The outer wall punch 301 and the outer wall die 302 are cylinders with a sector ring cross section, and the lens barrel punch 216 and the lens barrel die 217 are rectangular parallelepiped.

[0049] Furthermore, one end of the spring in the buffer unit 2132 is glued or clamped on the mounting column 2131, and the rubber pad is glued to the other end of the spring.

[0050] Furthermore, the middle limiting ring 2142 should have a concave fillet near the convex surface of the first positive lens 41 and the second positive lens 42 to reduce deformation caused by the edge of the limiting ring cylinder exerting force on the first positive lens 41 and the second positive lens 42 during installation.

[0051] Furthermore, the height 2142 of the intermediate limiting ring column is determined by the convex surface spacing between the first positive lens 41 and the second positive lens 42 required during design.

[0052] Furthermore, the connecting line of the fixing ring positioning connection convex die 112 and the connecting line of the positioning connection concave die 113 on the same shock-absorbing fixing ring 11 are located on two perpendicular diameters.

[0053] Furthermore, the mounting posts 2131 are all in a frustum shape, which facilitates the clamping of the spring in the buffer unit 2132 .

[0054] Furthermore, the positioning connection convex die 112 and the fixing ring sliding portion 111 are on the same diameter.

[0055] Furthermore, the mounting post 2131 is fixed to the buffer portion by welding.

[0056] Furthermore, the limiting ring 214 is fixedly connected to the inner side of the inner wall 21 of the lens barrel.

[0057] Furthermore, the buffer rubber 218 and the limiting ring 214 and the inner wall of the lens barrel inner wall 21 are bonded together, and the buffer coating 114 and the metasurface lens fixing ring 1 are bonded together.

[0058] Furthermore, there is a certain angle between the plane where the outer wall punch 301 of the first slot filling outer wall 31 is located and the plane where the punch 216 of the lens barrel inner wall 21 is located, so as to prevent the first slot filling outer wall 31 and the second slot filling outer wall 32 from being separated from the two lens barrel inner walls 21 at the same time during disassembly.

[0059] The installation method of this embodiment is:

[0060] 1. Place the metasurface lens in the metasurface lens fixing ring, that is, place the metasurface lens in the second shock-absorbing fixing ring, and connect the first shock-absorbing fixing ring with the second shock-absorbing fixing ring;

[0061] 2. Fix the buffer unit on the upper and lower mounting columns;

[0062] 3. Place the sliding part of the super surface lens fixing ring in the sliding groove on the inner wall of the lens barrel, and place the first positive lens and the second positive lens in the two lens grooves;

[0063] 4. Join the inner wall of another lens barrel to the inner wall of the lens barrel;

[0064] 5. Separate the upper and lower buffer unit rubber pads and slide the sliding part from the slide groove to the slide groove where the buffer part is located;

[0065] 6. Assemble the first slot-filling outer wall and the second slot-filling outer wall radially; and fix them on the lens barrel body with screws.

[0066] The disassembly method of this embodiment is:

[0067] 1. Remove the screws on the outer wall of the lens barrel and separate the first slot filling outer wall and the second slot filling outer wall one by one;

[0068] 2. Lay the lens barrel flat and remove the wall of the second lens barrel.

[0069] 3. Remove the metasurface lens fixing ring or the traditional lens.

[0070] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibration reduction lens suitable for mounting a metasurface lens and a conventional lens group, characterized in that: The invention comprises a metasurface lens fixing ring (1), a lens barrel body (2) and a lens barrel outer wall (3), wherein the metasurface lens fixing ring (1) is used to fix the metasurface lens and perform first-stage shock absorption, the lens barrel body (2) provides a conventional lens group installation space and performs second-stage shock absorption, and the lens barrel outer wall (3) is used to limit the position of the metasurface lens fixing ring (1) and ensure the stability of the connection between the two lens barrel inner walls constituting the lens barrel body (2); The metasurface lens fixing ring (1) is composed of two groups of shock-absorbing fixing rings (11) with the same structure joined up and down, and each joining side has two groups of positioning connection convex molds (112) and positioning connection concave molds (113) for connecting the two groups of shock-absorbing fixing rings (11), and the metasurface lens is fixed between the two groups, and the edge of each shock-absorbing fixing ring (11) is symmetrically provided with two sliding parts (111); The lens barrel body (2) is composed of two groups of lens barrel inner walls (21) of the same structure symmetrically joined, and each joining side is provided with two groups of lens barrel convex molds (216) and lens barrel concave molds (217) for connection. A first shock-absorbing fixed ring sliding groove (211), a second shock-absorbing fixed ring sliding groove (212), a super-surface lens buffer portion (213) and three limiting rings (214) are provided on each group of lens barrel inner walls (21). One end of the first shock-absorbing fixed ring sliding groove (211) and the second shock-absorbing fixed ring sliding groove (212) is used to accommodate a sliding portion (111) of the shock-absorbing fixed ring (11), and the other end is provided with a super-surface lens buffer portion (213) above and below for shock-absorbing the super-surface lens fixed ring (1); the three limiting rings (214) form two lens grooves (215) for accommodating a conventional lens group.

2. The vibration reduction lens according to claim 1, characterized in that: The interior of the super-surface lens fixing ring (1) is coated with a buffer material layer (114).

3. The vibration reduction lens according to claim 1, wherein: The connecting line of the two groups of positioning connection convex dies (112) and the connecting line of the two groups of positioning connection concave dies (113) are perpendicular to each other.

4. The vibration reduction lens according to claim 1, wherein: The lens barrel outer wall (3) is composed of two groups of first slot-filling outer walls (31) with the same structure and two groups of second slot-filling outer walls (32) with the same structure, which are spliced ​​together. The spliced ​​parts are provided with an outer wall convex mold (301) and an outer wall concave mold (302) for connection. The inner side of the first slot-filling outer wall (31) includes a first slot-filling portion (311), and the inner side of the second slot-filling outer wall (32) includes a second slot-filling portion (321). The first slot-filling portion (311) and the second slot-filling portion (321) correspond to a first damping fixing ring sliding groove (211) and its super-surface lens buffer portion (213), and a second damping fixing ring sliding groove (212) and its super-surface lens buffer portion (213), respectively.

5. The vibration reduction lens according to claim 1, wherein: Buffer rubber is arranged on the bottom surface of the ring column above the lens groove (215), the top surface of the ring column below, and the inner side surface of the inner wall (21) of the lens barrel between the upper and lower ring columns for shock absorption of a conventional lens group.

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