Wide-angle optical lens

Abstract

The utility model discloses a wide-angle optical lens, which comprises a shell and a lens, the lens is arranged in the shell, the shell comprises a front lens cone, a middle lens cone and a rear lens cone, the front side of the front lens cone is provided with a protective cover, the protective cover is connected with a lens protection mechanism, one end of the middle lens cone is connected with an elastic piece, and the other end of the middle lens cone is connected with the rear lens cone. According to the lens protection mechanism, when the optical lens is not used, a glass cover of the front lens barrel can be protected through a protection plate and a protection pad, so that the glass cover is prevented from being abraded or being contaminated by sundries to affect the use of the lens; and through the arrangement of the insertion tube, when the shell is assembled, the middle lens barrel is connected with the front lens barrel, and then the rear lens barrel is in threaded connection with the middle lens barrel, so that the insertion tube expands the elastic piece, the clamping block of the elastic piece is clamped in the clamping groove of the front lens barrel, and rapid assembly of the shell is realized.

Description

Technical Field

[0001] This utility model relates to the field of wide-angle optical lens technology, and more specifically, to a wide-angle optical lens. Background Technology

[0002] A wide-angle lens is a photographic lens with a shorter focal length than a standard lens, a wider angle of view than a standard lens, a longer focal length than a fisheye lens, and a narrower angle of view than a fisheye lens. Wide-angle lenses are further divided into ordinary wide-angle lenses and ultra-wide-angle lenses. Due to their wide angle of view and large depth of field, wide-angle optical lenses are widely used in landscape photography, architectural photography, and news photography.

[0003] In the existing technology, the housing material of wide-angle lenses is mostly a single metal or plastic, which has poor impact resistance and wear resistance, making it easy to be damaged during outdoor use. In addition, the housing is not easy to disassemble, which affects the replacement or repair of internal components. At the same time, when the lens is not in use, the front glass cover is prone to wear or dirt, affecting the use of the lens.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a wide-angle optical lens to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A wide-angle optical lens includes a housing and a lens element. The lens element is disposed within the housing. The housing includes a front lens barrel, a middle lens barrel, and a rear lens barrel. A protective cover is disposed on the front side of the front lens barrel, and a lens protection mechanism is connected to the protective cover. One end of the middle lens barrel is connected to an elastic element, and a locking block is disposed on the elastic element. The middle lens barrel is connected to the front lens barrel through the locking block on the elastic element. The rear lens barrel is threadedly connected to the middle lens barrel.

[0008] Preferably, the outer shell adopts a multi-layer composite structure, which includes an outer carbon fiber layer, a middle rubber buffer layer, and an inner aluminum alloy layer.

[0009] Preferably, the inner wall of the rear lens barrel is provided with heat dissipation fins, and the rear side of the rear lens barrel is provided with honeycomb-shaped vent holes.

[0010] Preferably, the lens protection mechanism includes a limiting frame, a protective plate, a protective pad, a rotating block, and a connecting frame. The connecting frame is fixed to the bottom of the protective cover. The bottom of the limiting frame is rotatably connected to the connecting frame via a rotating shaft. The protective plate is rotatably connected to the limiting frame. The protective pad is disposed on one side of the protective plate, and the rotating block is disposed on the other side of the protective plate. The protective pad is in contact with the glass cover of the front lens barrel.

[0011] Preferably, the inner wall of the limiting frame is provided with protrusions, and the outer side of the protective plate is provided with grooves that match the protrusions.

[0012] Preferably, the inner side of the protective cover is provided with an internal thread, and the outer side of the protective plate is provided with a matching external thread.

[0013] Preferably, the rear lens barrel is connected to a connector that extends to one end of the elastic element, and the inner wall of the front lens barrel is provided with a slot that matches the locking block.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Through the lens protection mechanism, the front lens barrel glass cover can be protected by the protective plate and protective pad when the optical lens is not in use, to prevent the glass cover from being scratched or contaminated with debris, which would affect the use of the lens and improve the protection effect of the lens.

[0016] 2. By using the set insertion tube, when assembling the housing, the middle lens barrel is connected to the front lens barrel, and then the rear lens barrel is threaded onto the middle lens barrel. This allows the insertion tube to open the elastic element, so that the locking block of the elastic element is locked in the front lens barrel slot, thus achieving rapid assembly of the housing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a wide-angle optical lens according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of a lens protection mechanism for a wide-angle optical lens according to an embodiment of the present utility model;

[0020] Figure 3 This is a structural diagram of the disassembly and assembly of a wide-angle optical lens housing according to an embodiment of the present utility model;

[0021] Figure 4 This is a cross-sectional view of the housing of a wide-angle optical lens according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Outer shell; 2. Lens; 3. Front lens barrel; 4. Middle lens barrel; 5. Rear lens barrel; 6. Protective cover; 7. Lens protection mechanism; 8. Elastic element; 9. Locking block; 10. Carbon fiber layer; 11. Rubber buffer layer; 12. Aluminum alloy layer; 13. Heat dissipation fins; 14. Vent hole; 15. Limiting bracket; 16. Protective plate; 17. Protective pad; 18. Rotating block; 19. Connecting bracket; 20. Protrusion; 21. Groove; 22. Insertion tube. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a wide-angle optical lens is provided.

[0026] Example 1

[0027] like Figure 1 As shown in Figure 4, a wide-angle optical lens according to an embodiment of the present invention includes a housing 1 and a lens 2. The lens 2 is disposed inside the housing 1. The housing 1 includes a front lens barrel 3, a middle lens barrel 4, and a rear lens barrel 5. A protective cover 6 is disposed on the front side of the front lens barrel 3, and a lens protection mechanism 7 is connected to the protective cover 6. One end of the middle lens barrel 4 is connected to an elastic element 8, and a locking block 9 is disposed on the elastic element 8. The middle lens barrel 4 is connected to the front lens barrel 3 through the locking block 9 on the elastic element 8. The rear lens barrel 5 is threadedly connected to the middle lens barrel 4. The housing 1 is made of multiple layers. The composite structure comprises an outer carbon fiber layer 10, a middle rubber buffer layer 11, and an inner aluminum alloy layer 12. The outer layer is made of high-strength carbon fiber material, which is lightweight, high-strength, and impact-resistant. The middle layer is made of rubber buffer layer to absorb external impact and protect internal optical components. The inner layer is made of aluminum alloy material, which has good thermal conductivity and deformation resistance, improving the performance of the housing. The inner wall of the rear lens barrel 5 is provided with heat dissipation fins 13, and the rear side of the rear lens barrel 5 is provided with honeycomb-shaped vent holes 14 to facilitate heat dissipation inside the lens.

[0028] Example 2

[0029] like Figure 1-4 As shown, a wide-angle optical lens according to an embodiment of the present invention includes a housing 1 and a lens 2. The lens 2 is disposed inside the housing 1. The housing 1 includes a front lens barrel 3, a middle lens barrel 4, and a rear lens barrel 5. A protective cover 6 is disposed on the front side of the front lens barrel 3. A lens protection mechanism 7 is connected to the protective cover 6. An elastic element 8 is connected to one end of the middle lens barrel 4. A locking block 9 is disposed on the elastic element 8. The middle lens barrel 4 is connected to the front lens barrel 3 through the locking block 9 on the elastic element 8. The rear lens barrel 5 is threadedly connected to the middle lens barrel 4. The lens protection mechanism 7 includes a limiting bracket 15, a protective plate 16, a protective pad 17, a rotating block 18, and a connecting bracket 19. The connecting bracket 19 is fixed to the bottom of the protective cover 6. The bottom of the limiting bracket 15 is rotatably connected to the connecting bracket 19 through a rotating shaft. The protective plate 16 is rotatably connected to the limiting frame 15. The protective pad 17 is disposed on one side of the protective plate 16, and the rotating block 18 is disposed on the other side of the protective plate. The protective pad 17 is in contact with the glass cover of the front lens barrel 3. The inner wall of the limiting frame 15 is provided with a protrusion 20, and the outer side of the protective plate 16 is provided with a groove 21 that matches the protrusion 20. The inner side of the protective cover 6 is provided with an internal thread, and the outer side of the protective plate 16 is provided with a matching external thread. The limiting frame 15 is rotated on the connecting frame 19 through a rotating shaft, so that the protective plate 16 is placed in front of the protective cover 6. The rotating block 18 drives the protective plate 16 to rotate, so that the protective plate 16 is threadedly connected to the protective cover 6. The protective plate 16 and the protective pad 17 can protect the glass cover of the front lens barrel 3.

[0030] Example 3

[0031] like Figure 1-4 As shown, a wide-angle optical lens according to an embodiment of the present invention includes a housing 1 and a lens 2. The lens 2 is disposed inside the housing 1. The housing 1 includes a front lens barrel 3, a middle lens barrel 4, and a rear lens barrel 5. A protective cover 6 is disposed on the front side of the front lens barrel 3, and a lens protection mechanism 7 is connected to the protective cover 6. An elastic element 8 is connected to one end of the middle lens barrel 4, and a locking block 9 is disposed on the elastic element 8. The middle lens barrel 4 is connected to the front lens barrel 3 through the locking block 9 on the elastic element 8. The rear lens barrel 5 is screwed... The middle lens barrel 4 is connected to the rear lens barrel 5, and the insertion tube 22 is connected to the rear lens barrel 5. The insertion tube 22 extends to one end of the elastic member 8. The inner wall of the front lens barrel 3 is provided with a slot that matches the locking block 9. The middle lens barrel 4 is connected to the front lens barrel 3, and then the rear lens barrel 5 is threadedly connected to the middle lens barrel 4, so that the insertion tube 22 opens the elastic member 8, so that the locking block 9 of the elastic member 8 is locked in the slot of the front lens barrel 3, so that the middle lens barrel 4 and the front lens barrel 3 limit each other, and realize the rapid assembly of the outer shell 1.

[0032] In summary, with the help of the above-mentioned technical solution of this utility model, when using this device, during the assembly of the outer shell 1, the middle lens barrel 4 is connected to the front lens barrel 3, and then the rear lens barrel 5 is threaded onto the middle lens barrel 4, so that the insertion tube 22 opens the elastic member 8, and the locking block 9 of the elastic member 8 is locked in the locking groove of the front lens barrel 3, realizing the rapid assembly of the outer shell 1. It is also easy to operate when disassembling the outer shell 1, and convenient to replace the lens. When the optical lens is not in use, the limiting bracket 15 is rotated on the connecting bracket 19 through the rotating shaft, so that the protective plate 16 is placed on the front side of the protective cover 6. The rotating block 18 drives the protective plate 16 to rotate, so that the protective plate 16 is threaded onto the protective cover 6. The protective plate 16 and the protective pad 17 can protect the glass cover of the front lens barrel 3, prevent the glass cover from being worn or contaminated with debris, which would affect the use of the lens, and improve the protection effect of the lens.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wide-angle optical lens, comprising a housing (1) and a lens element (2), characterized in that, The lens (2) is disposed inside the housing (1). The housing (1) includes a front lens barrel (3), a middle lens barrel (4) and a rear lens barrel (5). A protective cover (6) is provided on the front side of the front lens barrel (3). A lens protection mechanism (7) is connected to the protective cover (6). An elastic element (8) is connected to one end of the middle lens barrel (4). A locking block (9) is provided on the elastic element (8). The middle lens barrel (4) is connected to the front lens barrel (3) through the locking block (9) on the elastic element (8). The rear lens barrel (5) is threadedly connected to the middle lens barrel (4).

2. A wide-angle optical lens according to claim 1, characterized in that, The outer shell (1) adopts a multi-layer composite structure, which includes an outer carbon fiber layer (10), a middle rubber buffer layer (11), and an inner aluminum alloy layer (12).

3. A wide-angle optical lens according to claim 2, characterized in that, The inner wall of the rear lens barrel (5) is provided with heat dissipation fins (13), and the rear side of the rear lens barrel (5) is provided with honeycomb-shaped vent holes (14).

4. A wide-angle optical lens according to claim 3, characterized in that, The lens protection mechanism (7) includes a limiting frame (15), a protective plate (16), a protective pad (17), a rotating block (18), and a connecting frame (19). The connecting frame (19) is fixed to the bottom of the protective cover (6). The bottom of the limiting frame (15) is rotatably connected to the connecting frame (19) via a rotating shaft. The protective plate (16) is rotatably connected to the limiting frame (15). The protective pad (17) is set on one side of the protective plate (16). The rotating block (18) is set on the other side of the protective plate. The protective pad (17) is in contact with the glass cover of the front lens barrel (3).

5. A wide-angle optical lens according to claim 4, characterized in that, The inner wall of the limiting frame (15) is provided with a protrusion (20), and the outer side of the protective plate (16) is provided with a groove (21) that matches the protrusion (20).

6. A wide-angle optical lens according to claim 5, characterized in that, The inner side of the protective cover (6) is provided with an internal thread, and the outer side of the protective plate (16) is provided with a matching external thread.

7. A wide-angle optical lens according to claim 6, characterized in that, The rear lens barrel (5) is connected to a connector (22), which extends to one end of the elastic member (8). The inner wall of the front lens barrel (3) is provided with a slot that matches the locking block (9).

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