Curved-surface optical lens

Abstract

The utility model relates to the technical field of optical lenses, and discloses a curved-surface optical lens, which comprises a lens main body, protective film main bodies serving as protective surfaces are symmetrically adhered to the outer wall of the lens main body, a tearing sticker easy to tear is integrally formed on the outer wall of each protective film main body, and the tearing sticker is semicircular. The protection assembly for protecting the lens main body is arranged on the edge of the outer wall of the lens main body, so that the lens main body can be protected through the protection assembly in the use process, and the condition that the edge is damaged due to collision in the transportation or storage process is avoided; the protection assembly is composed of four same main protection frames, telescopic auxiliary protection frames are further arranged in the main protection frames, and the auxiliary protection frames can be matched with the main protection frames so that annular connection of the main protection frames can be achieved, omni-directional protection of the lens body can be achieved, and the lens body can be reused.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lenses, and specifically, to a curved optical lens. Background Art

[0002] Flat optical lenses are processed from optical materials through specific processes. Their surfaces have curvature and can change the propagation direction and properties of light. According to different surface processing, lenses can be divided into two categories: spherical lenses and aspherical lenses. Curved optical lenses are widely used in various fields such as optical instruments, optical measurements, optical sensors, medical, communication, and military. For example, in optical instruments such as optical microscopes, telescopes, and projectors, curved lenses can achieve efficient light focusing and imaging.

[0003] During the transportation of optical lenses, most use simple hard shell packaging or fixed frames, which often struggle to balance protection and flexibility. When dealing with the diverse collisions that lenses may encounter during transportation and storage, they appear inadequate, especially in the vulnerable area of the lens edge, which is extremely prone to damage. Some existing protection designs often lack sufficient adaptability, and many protection materials lose their original properties after single use and cannot be reused, which not only increases the use cost but also does not conform to the environmental protection concept. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a curved optical lens to solve the problems that when dealing with the diverse collisions that lenses may encounter during transportation and storage, it appears inadequate, especially in the vulnerable area of the lens edge, which is extremely prone to damage. Some existing protection designs often lack sufficient adaptability, and many protection materials lose their original properties after single use and cannot be reused, which not only increases the use cost but also does not conform to the environmental protection concept.

[0005] The utility model provides the following technical solution: a curved optical lens, including a lens body. On the outer wall of the lens body, a protective film body serving as a protective surface is symmetrically adhered. On the outer wall of the protective film body, a tearable sticker that is easy to tear is integrally formed, and the tearable sticker is semicircular. On the outer wall edge of the lens body, a protective component for protecting it is provided.

[0006] As a preference of the above technical solution, the protective component includes a main protective frame annularly arrayed on the outer wall of the lens body. Arc-shaped first inner grooves and second inner grooves are respectively formed inside the main protective frame. A secondary protective frame is slidably connected inside the second inner groove. An elastic clamping ring is fixedly connected to the end of the secondary protective frame. A limiting post that is clamped with the elastic clamping ring is fixedly connected to the inner side wall of the first inner groove.

[0007] As a preference of the above technical solution, an anti - detachment protrusion is integrally formed at one end of the auxiliary protective frame away from the elastic snap ring. An intercepting protrusion is integrally formed on the inner side wall of the main protective frame inside the second inner groove, and the intercepting protrusion limits and blocks the anti - detachment protrusion.

[0008] As a preference of the above technical solution, an arc - shaped outer limiting groove is formed at the position of the outer wall of the main protective frame corresponding to the second inner groove. A finger - pushing plate for facilitating the sliding of the auxiliary protective frame is fixedly connected to the outer side wall of the auxiliary protective frame at the position of the anti - detachment protrusion, and the finger - pushing plate extends to the outer wall of the main protective frame and is slidably connected with the outer limiting groove.

[0009] As a preference of the above technical solution, a limiting card slot for restricting the position of the lens body is formed on the inner side wall of the main protective frame.

[0010] As a preference of the above technical solution, a complete limiting ring is formed after several main protective frames and auxiliary protective frames are combined, and is limited and clamped on the outer wall of the lens body.

[0011] As a preference of the above technical solution, when the elastic snap ring and the limiting post are in a clamped state, the anti - detachment protrusion is in contact with the intercepting protrusion.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, by providing a protection component, during the use process, the lens body can be protected by the protection component, avoiding the situation that the edge is damaged due to collision during transportation or storage. The protection component is composed of four identical main protective frames, and an extendable auxiliary protective frame is also provided inside the main protective frame. The auxiliary protective frame can cooperate with the main protective frame to realize the annular connection of the main protective frame, providing all - around protection for the lens body and enabling its reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a curved optical lens;

[0015] Figure 2 It is a schematic disassembled structural diagram of the lens body and the protective film body in a curved optical lens;

[0016] Figure 3 It is a schematic structural diagram of the protection component in a curved optical lens;

[0017] Figure 4 It is a schematic sectional view of the main protective frame in a curved optical lens.

[0018] In the figure: 1, lens body; 2, main protective frame; 21, auxiliary protective frame; 211, anti - detachment protrusion; 22, outer limit groove; 23, finger - pushing plate; 24, first inner groove; 241, limit post; 25, second inner groove; 251, interception protrusion; 26, limit card slot; 27, elastic snap ring; 3, protective film body; 31, tear - off sticker. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0020] As Figure 1 and Figure 2 shown, the present utility model provides a technical solution: a curved optical lens, including a lens body 1, on the outer wall of the lens body 1, a protective film body 3 serving as a protection surface is symmetrically bonded. On the outer wall of the protective film body 3, a tear - off sticker 31 that is easy to tear is integrally formed, and the tear - off sticker 31 is semi - circular. At the edge of the outer wall of the lens body 1, a protective component for protecting it is provided.

[0021] By adopting the above - mentioned technical solution, by symmetrically bonding the protective film body 3 on the outer wall of the lens body 1, this design effectively adds a physical barrier to the lens, which can resist scratches, dust, and minor impacts that may be encountered during daily use, thus greatly extending the service life of the lens. The integrally formed semi - circular tear - off sticker 31 on the protective film body 3 enables users to easily and accurately find the starting point for tearing when replacing or cleaning the protective film, avoiding the problems that traditional protective films are difficult to remove or prone to leaving residual glue. The edge is often the most vulnerable and easily damaged part of the lens. The addition of the protective component can effectively resist edge collisions and squeezes, protect the lens from unnecessary damage, and at the same time improve the aesthetic appearance and use safety of the lens.

[0022] As Figure 3 and Figure 4As shown in the figure, the protection component includes a main protection frame 2 arranged in an annular array on the outer wall of the lens body 1. An arc-shaped first inner groove 24 and a second inner groove 25 are respectively formed inside the main protection frame 2. A secondary protection frame 21 is slidably connected inside the second inner groove 25. An elastic snap ring 27 is fixedly connected to the end of the secondary protection frame 21. A limiting post 241 that is snap-connected to the elastic snap ring 27 is fixedly connected to the inner side wall of the first inner groove 24. An anti-disengagement protrusion 211 is integrally formed at one end of the secondary protection frame 21 away from the elastic snap ring 27. An intercepting protrusion 251 is integrally formed on the inner side wall of the main protection frame 2 inside the second inner groove 25, and the intercepting protrusion 251 limits and blocks the anti-disengagement protrusion 211. An arc-shaped outer limiting groove 22 is formed on the outer wall of the main protection frame 2 corresponding to the position of the second inner groove 25. A finger-pushing plate 23 for facilitating the sliding of the secondary protection frame 21 is fixedly connected to the outer side wall of the secondary protection frame 21 at the position of the anti-disengagement protrusion 211, and the finger-pushing plate 23 extends to the outer wall of the main protection frame 2 and is slidably connected to the outer limiting groove 22.

[0023] With the above technical solution, through the combined design of the main protection frame 2 and the secondary protection frame 21, a multi-level protection system is constructed. The main protection frame 2 serves as the first layer of protection, providing basic structural support and edge protection. The secondary protection frame 21, through the sliding connection, realizes the further reinforcement and buffering of the lens edge, effectively resists the impact and extrusion from the side, and significantly improves the overall protection ability of the lens. The snap connection design between the elastic snap ring 27 and the limiting post 241 not only simplifies the installation and disassembly process of the secondary protection frame 21 but also ensures its stability during operation, avoiding the risk of loosening and damage that may be brought by the traditional screw fixing method. At the same time, it is also convenient for users to quickly adjust or replace the secondary protection frame 21 according to needs. The combined use of the anti-disengagement protrusion 211 and the intercepting protrusion 251 effectively prevents the accidental disengagement of the secondary protection frame 21 when subjected to external forces, further enhancing the reliability of the protection component.

[0024] As Figure 3 and Figure 4 As shown in the figure, a limiting card slot 26 for restricting the position of the lens body 1 is formed on the inner side wall of the main protection frame 2. When several main protection frames 2 and secondary protection frames 21 are combined, a complete limiting ring is formed and is snap-connected to the outer wall of the lens body 1. When the elastic snap ring 27 and the limiting post 241 are in a snap-connected state, the anti-disengagement protrusion 211 is in contact with the intercepting protrusion 251.

[0025] With the above technical solution, the design of the limit card slot 26 enables the lens body 1 to be accurately placed inside the main protective frame 2, ensuring its stable position in various usage scenarios. This not only improves the safety performance of the lens but also avoids visual blurring and discomfort caused by lens shaking or deviation. At the same time, the complete limit ring formed by combining several main protective frames 2 and auxiliary protective frames 21 provides all-round and uniform support for the lens body 1, effectively dispersing the pressure on the edge of the lens and extending the service life of the lens.

[0026] Working principle: When in use, place the lens body 1 at the position of the limit card slot 26 on the outer wall of one of the main protective frames 2, and then connect the remaining main protective frames 2 to the outer wall of the lens body 1 through the limit card slot 26. To enhance the protection effect of the lens body 1, the user needs to move the finger-pushing plate 23 to drive the auxiliary protective frame 21 to move. The auxiliary protective frame 21 moves in an arc inside the second inner groove 25. As the auxiliary protective frame 21 continues to move, the end of the auxiliary protective frame 21, namely the elastic snap ring 27, will enter the limit card slot 26 at the end of another main protective frame 2 and gradually contact the limit post 241. The elastic snap ring 27 has a certain elasticity and can cooperate with the limit post 241 to achieve snap connection. At this time, the anti-detachment protrusion 211 will also not continue to move due to the blocking of the intercepting protrusion 251, thereby protecting the edge of the lens body 1 in this way. When the lens body 1 needs to be used, move the finger-pushing plate 23 again to drive the auxiliary protective frame 21 to retract into the second inner groove 25. At this time, the elastic snap ring 27 and the limit post 241 are no longer snap-connected, and the user can then remove the main protective frame 2 from the outer wall of the lens body 1. Then, remove the protective film body 3 from the outer wall of the lens body 1 through the tearing sticker 31. The protective film body 3 can protect the lens body 1, and the user can then use the lens body 1. The disassembled main protective frame 2 can be reused, avoiding waste.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them.

Claims

1. A curved optical lens, comprising a lens body (1), characterized in that: On the outer wall of the lens body (1), a protective film body (3) serving as a protective surface is adhesively bonded symmetrically. An easily tearable tear sticker (31) is integrally formed on the outer wall of the protective film body (3), and the tear sticker (31) is semi-circular. A protective component for protecting the outer wall edge of the lens body (1) is provided. The protective component includes a main protective frame (2) arranged in an annular array on the outer wall of the lens body (1). Arc-shaped first inner grooves (24) and second inner grooves (25) are respectively formed inside the main protective frame (2). A secondary protective frame (21) is slidably connected inside the second inner groove (25). An elastic clamping ring (27) is fixedly connected to the end of the secondary protective frame (21). A limiting post (241) that is clamped with the elastic clamping ring (27) is fixedly connected to the inner side wall of the first inner groove (24).

2. The aspherical optical lens according to claim 1, wherein: An anti-detachment protrusion (211) is integrally formed at one end of the secondary protective frame (21) away from the elastic clamping ring (27). An intercepting protrusion (251) is integrally formed on the inner side wall of the main protective frame (2) inside the second inner groove (25), and the intercepting protrusion (251) limits and blocks the anti-detachment protrusion (211).

3. The aspherical optical lens according to claim 1, wherein: An arc-shaped outer limiting groove (22) is formed on the outer wall of the main protective frame (2) corresponding to the position of the second inner groove (25). A finger-pushing plate (23) for facilitating the sliding of the secondary protective frame (21) is fixedly connected to the outer side wall of the secondary protective frame (21) at the position of the anti-detachment protrusion (211), and the finger-pushing plate (23) extends to the outer wall of the main protective frame (2) and is slidably connected to the outer limiting groove (22).

4. A curved optical lens according to claim 1, characterized in that: A limiting card slot (26) for restricting the position of the lens body (1) is formed on the inner side wall of the main protective frame (2).

5. A curved optical lens according to claim 1, characterized in that: A complete limiting ring is formed by combining a plurality of the main protective frames (2) and the secondary protective frames (21), and it is limit-connected to the outer wall of the lens body (1).

6. The aspheric optical lens according to claim 2, wherein: When the elastic clamping ring (27) and the limiting post (241) are in a clamped state, the anti-detachment protrusion (211) is in contact with the intercepting protrusion (251).

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