Optical lens, electronic device and vehicle

Abstract

The application discloses an optical lens, an electronic device and a vehicle. The optical lens comprises: a lens assembly, the lens assembly comprising a first lens and a second lens arranged in sequence from an object side to an image side along an optical axis, a lens sealing structure being arranged between an edge of the first lens and an edge of the second lens, the lens sealing structure being used for detachably sealingly connecting the first lens and the second lens to form a sealed cavity between the first lens and the second lens; and a humidity regulating piece, the humidity regulating piece being located in the sealed cavity, the humidity regulating piece being used for absorbing or releasing part of moisture to regulate humidity in the sealed cavity; the humidity regulating piece is fixed to the first lens and is arranged in a spaced mode along the optical axis direction from the second lens, and / or the humidity regulating piece is fixed to the second lens and is arranged in a spaced mode along the optical axis direction from the first lens. The humidity regulating piece is located in the sealed cavity, so that the moisture absorption path is shortened, the defogging efficiency is improved, and the imaging clarity of the optical lens in a temperature difference change environment is ensured.

Description

Technical Field

[0001] This invention relates to the field of optical devices, and more specifically to an optical lens, electronic device, and vehicle. Background Technology

[0002] Optical lenses are widely used in fields such as vehicle driver assistance, industrial automation inspection, and security monitoring, providing images through visual recognition. When optical lenses operate in high-temperature and high-humidity environments for extended periods, a significant amount of moisture accumulates inside. When the external temperature drops suddenly, the outermost first lens element cools down rapidly, and the moisture easily condenses into fog on the inner surface of the first lens element, thus blocking light and even severely affecting image quality.

[0003] In practical use, low water mist dissipation efficiency will directly lead to blurry images, making it impossible for drivers to obtain timely and clear image information about the vehicle's surroundings, thus affecting driving safety. Summary of the Invention

[0004] One objective of this invention is to provide an optical lens that helps to extend the anti-fogging time and improve the defogging efficiency.

[0005] Another object of the present invention is to provide an electronic device having the above-described optical lens.

[0006] Another object of the present invention is to provide a vehicle having the above-described optical lens.

[0007] To achieve at least one of the above objectives, the technical solution adopted by the present invention is as follows: an optical lens, comprising: a lens assembly, the lens assembly including a first lens and a second lens arranged sequentially from the object side to the image side along the optical axis, a lens sealing structure being provided between the edge of the first lens and the edge of the second lens, the lens sealing structure being used to detachably seal and connect the first lens and the second lens to form a sealed cavity between the first lens and the second lens; and a humidity regulating member, the humidity regulating member being located within the sealed cavity, the humidity regulating member being used to absorb or release a portion of moisture to regulate the humidity within the sealed cavity; the humidity regulating member being fixed to the first lens and spaced apart from the second lens along the optical axis, and / or the humidity regulating member being fixed to the second lens and spaced apart from the first lens along the optical axis.

[0008] As a preferred embodiment, the first lens includes a first optically effective area and a first mounting area located on the periphery of the first optically effective area, and the second lens includes a second optically effective area and a second mounting area located on the periphery of the second optically effective area. A lens sealing structure is provided between the first mounting area and the second mounting area, and a sealed cavity is formed between the first lens and the second lens through the lens sealing structure. A placement space is provided on the first mounting area and / or the second mounting area, and the placement space is used to accommodate the humidification component. In this embodiment, along the radial direction of the optical lens, the distance from the placement space to the optical axis is less than the distance from the lens sealing structure to the optical axis.

[0009] As a preferred embodiment, the lens sealing structure includes a first lens sealing structure, the second mounting area includes an upper mounting surface and an upper sealing surface, the first mounting area includes a lower mounting surface, the upper mounting surface and the lower mounting surface are spaced apart along the optical axis, the upper sealing surface protrudes from the upper mounting surface along the optical axis, and the upper sealing surface is in contact with the lower mounting surface to form the first lens sealing structure at the contact point.

[0010] As a preferred embodiment, the lens sealing structure includes a first lens sealing structure, the second mounting area includes an upper mounting surface, the first mounting area includes a lower mounting surface and a lower sealing surface, the upper mounting surface and the lower mounting surface are spaced apart along the optical axis, the lower sealing surface protrudes from the lower mounting surface along the optical axis, and the lower sealing surface is in contact with the upper mounting surface to form the first lens sealing structure at the contact point.

[0011] As a preferred embodiment, the roughness of the mating area between the first mounting area and the second mounting area is less than or equal to Ra1.6.

[0012] Preferably, the size of the mating area between the first mounting area and the second mounting area along the radial direction of the optical lens is greater than or equal to 0.3 mm.

[0013] As a preferred embodiment, the lens sealing structure includes a second lens sealing structure, the second lens sealing structure including a first sealing ring, the first sealing ring being sandwiched between the first mounting area and the second mounting area along the optical axis.

[0014] As a preferred embodiment, the lens sealing structure includes a first lens sealing structure and a second lens sealing structure. The second mounting area includes an upper mounting surface and an upper sealing surface. The first mounting area includes a lower mounting surface. The upper mounting surface and the lower mounting surface are spaced apart along the optical axis. The upper sealing surface protrudes from the upper mounting surface along the optical axis and is in contact with the lower mounting surface to form the first lens sealing structure at the contact point. Alternatively, the second mounting area includes an upper mounting surface, and the first mounting area includes a lower mounting surface and a lower sealing surface. The upper mounting surface and the lower mounting surface are spaced apart along the optical axis. The lower sealing surface protrudes from the lower mounting surface along the optical axis and is in contact with the upper mounting surface to form the first lens sealing structure at the contact point. The second lens sealing structure includes a first sealing ring, which is sandwiched between the first mounting area and the second mounting area along the optical axis. The distance from the first lens sealing structure to the optical axis is less than the distance from the second lens sealing structure to the optical axis along the radial direction of the optical lens.

[0015] As a preferred embodiment, the optical lens further includes a lens barrel having a receiving space for accommodating the lens assembly; the second mounting area includes a stepped surface for placing the first sealing ring, the stepped surface being located at the edge of the second mounting area; the lens barrel has a support surface for supporting the first lens, the support surface being located on the outer periphery of the second lens; the first sealing ring includes an integrally formed first sealing portion and a second sealing portion, the first sealing portion being clamped between the first lens and the stepped surface along the optical axis, and the second sealing portion being clamped between the first lens and the support surface along the optical axis.

[0016] As a preferred embodiment, the optical lens further includes a lens barrel and a lens barrel sealing structure, the lens barrel having a receiving space for accommodating the lens assembly; the lens barrel sealing structure is disposed between the first lens and the lens barrel along the optical axis direction, and / or disposed between the first lens and the lens barrel along the radial direction of the optical lens; the lens barrel sealing structure includes at least one of a second sealing ring and an adhesive.

[0017] As a preferred embodiment, in a plane perpendicular to the optical axis, the humidity regulating element is in the form of a ring, a "C" shape, or multiple arc segments evenly distributed around the optical axis.

[0018] As a preferred embodiment, the humidity regulating element is made of modified silane-based high-permeability adhesive or UV-cured acrylic resin.

[0019] As a preferred embodiment, by installing the humidity regulating element in the sealed cavity, under fogging test conditions, no fog-like condensation occurs in the first lens, the second lens, and the sealed cavity during the observation period, which is 10 min to 60 min.

[0020] To achieve at least one of the above objectives, the technical solution adopted by the present invention is: an electronic device, including the optical lens as described above.

[0021] To achieve at least one of the above objectives, the technical solution adopted by the present invention is: a vehicle, including the optical lens as described above.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: By forming a sealed cavity between the first and second lenses, it is beneficial to prevent moisture from other cavities in the lens barrel, as well as moisture that seeps into the lens barrel from the outside through the sealing ring, from entering the space between the first and second lenses, thereby reducing the amount of moisture in the sealed cavity. Furthermore, the humidification element is located inside the sealed cavity, which shortens the moisture absorption path, thereby improving the defogging efficiency. In addition, the smaller amount of moisture in the sealed cavity can prolong the antifogging effect, which helps to ensure the image clarity of the optical lens in environments with drastic temperature changes. Attached Figure Description

[0023] Figure 1 These are cross-sectional views of imaging lenses used in some related technologies.

[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0025] Figure 3 It is a cross-sectional view of an imaging lens in some other related technologies.

[0026] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0027] Figure 5 This is a cross-sectional view of an optical lens with a placement space disposed on the first lens according to some embodiments of this application.

[0028] Figure 6 yes Figure 5 A magnified view of point C in the middle.

[0029] Figure 7 This is a cross-sectional view of the optical lens according to Embodiment 1 of this application.

[0030] Figure 8 yes Figure 7 Enlarged view of point D in the middle.

[0031] Figure 9This is a cross-sectional view of the optical lens according to Embodiment 2 of this application.

[0032] Figure 10 yes Figure 9 Enlarged view of point E in the middle.

[0033] Figure 11 This is a cross-sectional view of the optical lens according to Embodiment 3 of this application.

[0034] Figure 12 This is a cross-sectional view of an optical lens with an adhesive barrel sealing structure according to some embodiments of this application.

[0035] Figure 13 This is a cross-sectional view of an optical lens with a second sealing ring as the lens barrel sealing structure according to some embodiments of this application.

[0036] Figure 14 This is a cross-sectional view of an optical lens having a first lens sealing structure and a second lens sealing structure according to some embodiments of this application.

[0037] Figure 15 yes Figure 14 Enlarged view of point F in the middle.

[0038] Figure 16 This is a cross-sectional view of an optical lens with a second lens sealing structure according to some embodiments of this application.

[0039] Figure 17 This is a cross-sectional view of an optical lens having a second lens sealing structure according to other embodiments of this application.

[0040] Figure 18 This is a cross-sectional view of an optical lens having a second lens sealing structure according to other embodiments of this application.

[0041] Figure 19 This is a cross-sectional view of an optical lens according to some embodiments of the present application, showing a second lens sealing structure including a first sealing portion and a second sealing portion.

[0042] Figure 20 yes Figure 19 A magnified view of point G in the middle.

[0043] Figure 21 This is a cross-sectional view of the optical lens according to Embodiment 4 of this application.

[0044] Figure 22 This is a cross-sectional view of an optical lens according to other embodiments of the present application, showing a second lens sealing structure including a first sealing portion and a second sealing portion.

[0045] Figure 23This is a schematic diagram showing the humidification element of an optical lens according to some embodiments of this application, arranged in a ring shape.

[0046] Figure 24 This is a schematic diagram of a C-shaped humidification element of an optical lens according to some embodiments of this application.

[0047] Figure 25 This is a schematic diagram of the humidification element of an optical lens according to some embodiments of this application, which is a two-segment arc.

[0048] Figure 26 This is a schematic diagram of the humidification element of an optical lens according to some embodiments of this application, which is in the form of a three-segment arc.

[0049] Figure 27 This is a photograph taken under a microscope before experimental testing of the optical lens according to Embodiment 4 of this application.

[0050] Figure 28 This is a photograph taken under a microscope after experimental testing of the optical lens according to Embodiment 4 of this application.

[0051] Figure 29 The image is a microscopic photograph of the optical lens according to the comparative example of this application prior to experimental testing.

[0052] Figure 30 The image is a microscopic photograph of the optical lens according to the comparative example of this application after experimental testing.

[0053] In the diagram: 1. Optical lens; 10. Lens assembly; 11. First lens; 111. First optically effective area; 112. First mounting area; 1121. Lower mounting surface; 12. Second lens; 121. Second optically effective area; 122. Second mounting area; 1221. Upper mounting surface; 1222. Upper sealing surface; 1223. Stepped surface; 13. Sealing cavity; 14. Placement space; 20. Lens barrel; 21. Reception space; 22. Support surface; 3 0. Humidification component; 40. Lens sealing structure; 41. First lens sealing structure; 42. Second lens sealing structure; 421. First sealing ring; 4211. First sealing part; 4212. Second sealing part; 50. Lens barrel sealing structure; 51. Second sealing ring; 52. Adhesive; 101. Imaging lens; 102. First lens; 103. Second lens; 104. Vent groove; 105. Humidification material; 106. Humidification adhesive; 107. Lens mount. Detailed Implementation

[0054] The present invention will now be further described in conjunction with specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0055] In the description of this invention, it should be noted that directional terms such as "center," "lateral," "longitudinal," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0056] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0057] like Figure 1 and Figure 2 As shown, in some related technologies, the imaging lens 101 has a moisture-regulating material 105 disposed on the outer periphery of the second lens 103. Moisture in the cavity between the first lens 102 and the second lens 103 needs to pass through the exhaust groove 104 to be absorbed by the moisture-regulating material 105. In other words, the cavity between the first lens 102 and the second lens 103 is far from the moisture-regulating material 105, resulting in a long moisture absorption path, making it difficult for moisture to be absorbed in time, and leading to low defogging efficiency. Furthermore, the moisture-regulating material 105 also needs to absorb moisture from other cavities in the lens mount 107, as well as moisture that seeps into the lens mount 107 from the outside, resulting in a large total amount of moisture that the moisture-regulating material 105 needs to absorb, easily reaching saturation and resulting in a short anti-fogging time. Figure 3 and Figure 4 As shown, in some related technologies, the imaging lens 101 uses a moisture-adjusting adhesive 106 to bond and fix the first lens 102 and the second lens 103 to prevent them from loosening and to absorb moisture. However, the moisture-adjusting adhesive 106 also needs to absorb moisture from other cavities in the lens mount 107, as well as moisture that seeps into the lens mount 107 from the outside, causing the moisture-adjusting adhesive 106 to easily reach saturation and resulting in a short anti-fogging time. Moreover, the exposed area of ​​the moisture-adjusting adhesive 106 is small, resulting in low defogging efficiency. In addition, the first lens 102 and the second lens 103 are difficult to disassemble completely after being bonded, which increases the production and maintenance costs of the imaging lens 101.

[0058] Based on the above, in order to prolong the anti-fogging effect and improve the defogging efficiency, this application provides an optical lens 1, such as... Figures 5-22As shown, it includes a lens assembly 10 and a humidity regulating element 30. Specifically, the lens assembly 10 includes a first lens 11 and a second lens 12 arranged sequentially along the optical axis from the object side to the image side. A lens sealing structure 40 is provided between the edge of the first lens 11 and the edge of the second lens 12. The lens sealing structure 40 is used to detachably seal the connection between the first lens 11 and the second lens 12 to form a sealed cavity 13 between the first lens 11 and the second lens 12. Figure 13 and Figure 21 The area outlined by the dashed line is shown in the diagram. The humidifier 30 is located within the sealed cavity 13. The humidifier 30 is used to absorb or release some moisture to regulate the humidity within the sealed cavity 13. The humidifier 30 is fixed to the first lens 11 and spaced apart from the second lens 12 along the optical axis, and / or the humidifier 30 is fixed to the second lens 12 and spaced apart from the first lens 11 along the optical axis. In some embodiments, the optical lens 1 further includes a lens barrel 20, which has a receiving space 21 for accommodating the lens assembly 10.

[0059] This should be understandable, such as Figure 5 As shown, by forming a sealed cavity 13 between the first lens 11 and the second lens 12, it is beneficial to prevent water vapor in other cavities of the lens barrel 20 and water vapor that seeps into the lens barrel 20 from the outside from entering the space between the first lens 11 and the second lens 12, thereby reducing the amount of water vapor in the sealed cavity 13. Furthermore, the humidification element 30 is located in the sealed cavity 13, that is, the humidification element 30 is located on the side of the lens sealing structure 40 close to the optical axis, which shortens the moisture absorption path, thereby improving the defogging efficiency. Moreover, the small amount of water vapor in the sealed cavity 13 can delay the humidification element 30 from reaching saturation, prolong the antifogging effect, and help ensure the imaging clarity of the optical lens 1 under drastic temperature changes.

[0060] Conventionally, to solve the problem of lens fogging, sealant can be filled between the first lens 11 and the second lens 12 to prevent moisture from entering. However, this sealing method relies on the long-term stability of the sealing material. Once the sealant ages or falls off, the lens fogging problem will recur. In this embodiment, the first lens 11 and the second lens 12 are detachably and sealed together, which facilitates the complete disassembly of the first lens 11 and the second lens 12 during the assembly of the optical lens 1 for rework or cleaning, thereby reducing scrap losses. During the maintenance of the optical lens 1, the first lens 11 and the second lens 12 can be completely separated, thereby replacing the failed humidification component 30 or performing other maintenance. This helps to avoid discarding the entire lens assembly 10 or even the entire optical lens 1, thereby extending the service life of the optical lens 1 and reducing after-sales maintenance costs, thus improving the economic efficiency of the optical lens 1.

[0061] It is worth mentioning that, such as Figures 5-10As shown, the humidifier 30 is fixed to the first lens 11 and spaced apart from the second lens 12 along the optical axis, and / or the humidifier 30 is fixed to the second lens 12 and spaced apart from the first lens 11 along the optical axis. This increases the area of ​​the humidifier 30 exposed to the air and helps ensure that the air in the sealed cavity 13 can circulate freely around the humidifier 30, so that the exposed surface of the humidifier 30 can fully contact the water vapor, thereby improving the moisture absorption efficiency and defogging efficiency.

[0062] In some embodiments, such as Figures 5-10 As shown, the first lens 11 includes a first optically effective area 111 and a first mounting area 112 located on the periphery of the first optically effective area 111. The second lens 12 includes a second optically effective area 121 and a second mounting area 122 located on the periphery of the second optically effective area 121. The first optically effective area 111 and the second optically effective area 121 are used to change the propagation path of light to achieve focusing. A lens sealing structure 40 is provided between the first mounting area 112 and the second mounting area 122, and a sealed cavity 13 is formed between the first lens 11 and the second lens 12 through the lens sealing structure 40. A placement space 14 is provided on the first mounting area 112 and / or the second mounting area 122, and the placement space 14 is used to accommodate the humidifier 30. In this case, along the radial direction of the optical lens 1, the distance from the placement space 14 to the optical axis is less than the distance from the lens sealing structure 40 to the optical axis, so that the humidifier 30 in the placement space 14 is located on the side of the lens sealing structure 40 closer to the optical axis.

[0063] It should be understood that, compared to placing the humidification element 30 on the lens barrel 20 on the outer periphery of the second lens 12, in this embodiment, the humidification element 30 is placed at the first mounting area 112 of the first lens 11 and / or at the second mounting area 122 of the second lens 12, thereby shortening the moisture absorption path and improving the defogging efficiency. Furthermore, the distance from the placement space 14 to the optical axis is less than the distance from the lens sealing structure 40 to the optical axis, allowing the humidification element 30 to be located within the sealed cavity 13, thereby reducing the amount of water vapor that the humidification element 30 needs to absorb, delaying saturation, and extending the anti-fogging effect. In addition, the placement space 14 can limit the position of the humidification element 30, reducing the difficulty of setting the humidification element 30, improving the production efficiency of the optical lens 1, and improving the positional consistency of the humidification element 30, which helps to achieve mass production.

[0064] In at least one embodiment, such as Figure 6 and Figure 10As shown, the placement space 14 is implemented as the internal space of a groove. The sidewalls of the groove limit the humidification element 30, which helps to prevent the humidification element 30 from overflowing or accidentally shifting and contaminating the first optically effective area 111 and the second optically effective area 121. Specifically, in the plane where the optical axis of the optical lens 1 is located, the cross-sectional shape of the groove is an inverted trapezoid. This arrangement allows the bottom wall and the sidewall of the groove to form an obtuse angle, thereby reducing the risk of cracks or even breakage of the lens due to stress concentration. Furthermore, it allows for a larger volume with the same groove depth, accommodating more humidification elements 30, thus extending the anti-fogging effect. It is worth mentioning that those skilled in the art can adjust the cross-sectional shape of the groove according to the actual situation. For example, the cross-sectional shape of the groove can be adjusted to a rectangle, a semi-circle, etc., and such adjustments fall within the protection scope of this application.

[0065] In at least one embodiment, the placement space 14 is defined by a bearing surface and a stop protrusion. Specifically, the first mounting area 112 and / or the second mounting area 122 have bearing surfaces, and a protruding stop protrusion is provided on one side of the bearing surface. The placement space 14 is located at the connection between the bearing surface and the stop protrusion, and the stop protrusion can limit the humidification component 30 from one side.

[0066] It is worth mentioning that the lens sealing structure 40 and the placement space 14 are located in the lens mounting area, which helps to avoid affecting the optically effective area of ​​the lens. In other words, this arrangement helps to prevent the lens sealing structure 40 and the humidity regulating element 30 from blocking the imaging optical path or introducing stray light, and ensures that the lens has a sufficiently large effective light-transmitting area, thereby ensuring the light transmission and image quality of the optical lens 1. In addition, the fact that the lens sealing structure 40 and the placement space 14 are located in the lens mounting area also helps to avoid processing damage to the optically effective area or applying contact stress to the optically effective area, thereby helping to ensure the optical accuracy and optical stability of the optical lens 1.

[0067] In some embodiments, such as Figures 5-15 As shown, the lens sealing structure 40 includes a first lens sealing structure 41, the second mounting area 122 includes an upper mounting surface 1221 and an upper sealing surface 1222, the first mounting area 112 includes a lower mounting surface 1121, the upper mounting surface 1221 and the lower mounting surface 1121 are spaced apart along the optical axis, the upper sealing surface 1222 protrudes from the upper mounting surface 1221 along the optical axis, and the upper sealing surface 1222 is in contact with the lower mounting surface 1121 to form the first lens sealing structure 41 at the contact point.

[0068] In other embodiments, the second mounting area 122 includes an upper mounting surface 1221, and the first mounting area 112 includes a lower mounting surface 1121 and a lower sealing surface (not shown). The upper mounting surface 1221 and the lower mounting surface 1121 are spaced apart along the optical axis. The lower sealing surface protrudes from the lower mounting surface 1121 along the optical axis and fits against the upper mounting surface 1221 to form a first lens sealing structure 41 at the fitting point.

[0069] It should be understood that by having the upper sealing surface 1222 of the second lens 12 protrude and fit against the lower mounting surface 1121 of the first lens 11, or by having the lower sealing surface of the first lens 11 protrude and fit against the upper mounting surface 1221 of the second lens 12, the first lens sealing structure 41 is formed. This allows for a detachable rigid seal through the precision machining of the first lens 11 and the second lens 12. This helps avoid the need for additional sealing media, thereby reducing the types of materials used in the optical lens 1 and simplifying the assembly process of the optical lens 1, which is conducive to achieving automated or semi-automated production. Furthermore, in this embodiment, the first lens sealing structure 41 is integrated into the first lens 11 and the second lens 12, thereby improving the integration and structural compactness of the optical lens 1 and contributing to the miniaturization design of the optical lens 1.

[0070] Preferably, the first lens sealing structure 41 is formed by the upper sealing surface 1222 protruding from the upper mounting surface 1221 along the optical axis and the upper sealing surface 1222 fitting against the lower mounting surface 1121. This arrangement reduces the processing difficulty of the first lens 11 and helps ensure the surface accuracy and structural integrity of the lower surface of the first lens 11, thereby improving the optical performance and structural strength of the optical lens 1. Furthermore, when the first lens sealing structure 41 is formed by the lower sealing surface protruding from the lower mounting surface 1121 along the optical axis and the lower sealing surface fitting against the upper mounting surface 1221, it helps ensure the structural integrity of the upper surface of the second lens 12 and reduces the processing difficulty of the second lens 12.

[0071] It is worth mentioning that, such as Figure 6 and Figure 10 As shown, the placement space 14 is disposed on the lower mounting surface 1121 of the first lens 11 or on the upper mounting surface 1221 of the second lens 12, and the humidification component 30 is accommodated within the placement space 14; furthermore, the lower mounting surface 1121 of the first lens 11 and the upper mounting surface 1221 of the second lens 12 are spaced apart along the optical axis, which helps to ensure that the air in the sealed cavity 13 can circulate freely around the humidification component 30, thereby allowing the exposed surface of the humidification component 30 to fully contact the water vapor, improving the moisture absorption efficiency and defogging efficiency.

[0072] Preferably, the placement space 14 is located on the upper mounting surface 1221 of the second lens 12, which facilitates the direct placement of the humidification component 30 after assembling the second lens 12, followed by the placement of the first lens 11; in other words, the optical lens 1 can be assembled from bottom to top, thereby simplifying the assembly process. Furthermore, when the placement space 14 is located on the lower mounting surface 1121 of the first lens 11, it is convenient to pre-place the humidification component 30 on the lower mounting surface 1121 before assembling the first lens 11, and then assemble the first lens 11 together with the humidification component 30 into the second lens 12, thereby reducing the step of separately placing the humidification component 30 between the lenses and further improving assembly convenience.

[0073] In at least one embodiment, the upper mounting surface 1221 of the second lens 12 is used as the bearing surface described above, and the protruding structure with the upper sealing surface 1222 is used as the stop protrusion described above, which helps to simplify the structure of the second lens 12 and reduce the processing difficulty of the second lens 12.

[0074] In some embodiments, the roughness of the mating area between the first mounting area 112 and the second mounting area 122 is less than or equal to Ra1.6; wherein, the mating area refers to the mating surface between the lower sealing surface of the first lens 11 and the upper mounting surface 1221 of the second lens 12, or the mating surface between the upper sealing surface 1222 of the second lens 12 and the lower mounting surface 1121 of the first lens 11. It should be understood that controlling the roughness of the mating area to Ra1.6 or less reduces the micro-grooves at the mating area, thereby helping to block the capillary permeation effect and making it difficult for water vapor inside the sealed cavity 13 and water vapor outside the sealed cavity 13 to diffuse into each other. In addition, this arrangement allows the first lens 11 and the second lens 12 to form a first lens sealing structure 41 by themselves, which helps to avoid the need for additional sealing media, thereby reducing the risk of internal contamination of the optical lens 1 due to aging or failure of the sealing media. This is suitable for optical lenses 1 with high cleanliness requirements and can improve the optical stability of the optical lens 1.

[0075] Specifically, the surface roughness of the mating area between the first mounting area 112 and the second mounting area 122 includes, but is not limited to: Ra1.25, Ra1.0, Ra0.8, Ra0.63, Ra0.5, Ra0.4, Ra0.32, Ra0.25, Ra0.2, Ra0.16, Ra0.125, Ra0.1, Ra0.08, and Ra0.05. Preferably, the surface roughness of the mating area between the first mounting area 112 and the second mounting area 122 is less than or equal to Ra1.6 and greater than or equal to Ra0.2, in order to balance sealing performance and processing economy.

[0076] In at least one embodiment, the roughness of the upper sealing surface 1222 of the second lens 12 is less than or equal to Ra1.6, and the roughness of the lower mounting surface 1121 of the first lens 11 is less than or equal to Ra1.6. In at least one other embodiment, the roughness of the upper sealing surface 1222 of the second lens 12 is less than or equal to Ra1.6, and the roughness of the portion of the lower mounting surface 1121 of the first lens 11 that contacts the upper sealing surface 1222 is less than or equal to Ra1.6. In other words, the entire lower mounting surface 1121 can be precision machined, or only the portion of the lower mounting surface 1121 that contacts the upper sealing surface 1222 can be precision machined, thereby balancing sealing performance and processing economy. This application does not impose specific limitations in this regard. Similarly, when the lower sealing surface of the first lens 11 protrudes and fits against the upper mounting surface 1221 of the second lens 12, the entire upper mounting surface 1221 can be precision machined, or only the part of the upper mounting surface 1221 that contacts the lower sealing surface can be precision machined, thus balancing sealing performance and processing economy. This application does not impose any specific restrictions on this.

[0077] In some embodiments, the size of the mating area between the first mounting area 112 and the second mounting area 122 is greater than or equal to 0.3 mm along the radial direction of the optical lens 1; in other words, when the lower sealing surface of the first lens 11 protrudes and is mated with the upper mounting surface 1221 of the second lens 12, the size of the lower sealing surface of the first lens 11 is greater than or equal to 0.3 mm along the radial direction of the optical lens 1; when the upper sealing surface 1222 of the second lens 12 protrudes and is mated with the lower mounting surface 1121 of the first lens 11, the size of the upper sealing surface 1222 of the second lens 12 is greater than or equal to 0.3 mm along the radial direction of the optical lens 1.

[0078] It should be understood that the size of the mating area is greater than or equal to 0.3 mm, which allows the first lens sealing structure 41 to have sufficient width, thereby increasing the creep distance and resistance of water vapor outside the sealing cavity 13 to penetrate into the sealing cavity 13, and reducing the risk of rigid seal failure.

[0079] Specifically, the dimensions of the mating area between the first mounting area 112 and the second mounting area 122 include, but are not limited to: 0.3mm, 0.32mm, 0.34mm, 0.36mm, 0.38mm, 0.4mm, 0.42mm, 0.44mm, 0.46mm, 0.48mm, 0.5mm, 0.52mm, 0.54mm, 0.56mm, 0.58mm, and 0.6mm. Preferably, the dimensions of the mating area between the first mounting area 112 and the second mounting area 122 are greater than or equal to 0.3mm and less than or equal to 0.5mm, in order to balance sealing and the radial dimension of the optical lens 1; in other words, to achieve a reliable seal while minimizing the radial dimension of the optical lens 1.

[0080] In some embodiments, the total mass of the humidity regulating element 30 in the optical lens 1 is greater than or equal to 3 mg, enabling it to quickly absorb moisture in high humidity environments or when the external temperature drops suddenly, and helping to delay saturation and extend the anti-fogging effect. Specifically, the total mass of the humidity regulating element 30 in the optical lens 1 includes, but is not limited to: 3 mg, 3.5 mg, 4 mg, 4.5 mg, 5 mg, 5.5 mg, 6 mg, 6.5 mg, 7 mg, 7.5 mg, 8 mg, 8.5 mg, and 9 mg. Preferably, the total mass of the humidity regulating element 30 in the optical lens 1 is greater than or equal to 3 mg and less than or equal to 6 mg, in order to balance sealing and the lightweight of the optical lens 1.

[0081] In at least one embodiment, the humidity regulating element 30 has a 1:3 mass water absorption ratio, meaning that 1 mg of humidity regulating element 30 can absorb 3 mg of water vapor. In at least one embodiment, the humidity regulating element 30 is made of modified silane-based high-permeability adhesive; preferably, the modified silane-based high-permeability adhesive is cured by UV exposure, heating, or static curing, thereby helping to prevent excessive changes in the volume of the humidity regulating element 30 due to water vapor absorption. In at least one embodiment, the humidity regulating element 30 is made of UV acrylic resin; preferably, the UV acrylic resin is cured by UV exposure, heating, or static curing, thereby helping to prevent excessive changes in the volume of the humidity regulating element 30 due to water vapor absorption.

[0082] In some embodiments, such as Figures 23-26 As shown, in a plane perpendicular to the optical axis, the humidifier 30 is annular, C-shaped, or has multiple segments of circumferentially distributed arcs around the optical axis. In at least one embodiment, the humidifier 30 is annular in the plane perpendicular to the optical axis, which fully utilizes the space within the sealed cavity 13 to accommodate more humidifiers 30 and forms a continuous annular exposed surface along the circumference of the sealed cavity 13, thereby enabling balanced absorption of moisture from all directions. In at least one embodiment, the humidifier 30 is C-shaped in the plane perpendicular to the optical axis, meaning that the humidifier 30 has an opening along the circumference of the sealed cavity 13, which reduces the material usage and weight of the humidifier 30. In at least one embodiment, the humidifier 30 is multi-segmented circumferentially distributed arcs in the plane perpendicular to the optical axis, including but not limited to two-segment or three-segment arcs, which helps to balance the absorption of moisture from all directions while reducing the material usage of the humidifier 30.

[0083] It is worth mentioning that, in the plane perpendicular to the optical axis, the placement space 14 can be annular to accommodate annular, "C"-shaped, or multi-segment arc-shaped humidity regulating element 30; the placement space 14 can also be "C"-shaped or multi-segment arc-shaped to accommodate corresponding annular, "C"-shaped, or multi-segment arc-shaped humidity regulating element 30; this application does not impose specific limitations in this regard.

[0084] In some embodiments, such as Figures 14-22 As shown, the lens sealing structure 40 includes a second lens sealing structure 42, and the second lens sealing structure 42 includes a first sealing ring 421. The first sealing ring 421 is sandwiched between the first mounting area 112 and the second mounting area 122 along the optical axis direction.

[0085] It should be understood that the first sealing ring 421 enables the first lens 11 and the second lens 12 to be detachably and sealed together, forming a sealed cavity 13 between the first lens 11, the second lens 12, and the first sealing ring 421. It should also be understood that the elastic deformation of the first sealing ring 421 compensates for changes in gap width caused by flatness deviations of the first lens 11 and the second lens 12 or thermal expansion and contraction, thus improving the reliability of the sealed connection. Furthermore, when the optical lens 1 is subjected to impact, the first sealing ring 421 acts as a buffer, thereby reducing the risk of breakage of the first lens 11 and the second lens 12.

[0086] It is worth mentioning that the lens sealing structure 40 of the optical lens 1 can be implemented as only the first lens sealing structure 41 described above, or only as the second lens sealing structure 42 described here, or it can be implemented as having both the first lens sealing structure 41 and the second lens sealing structure 42. This application does not impose any specific restrictions on this.

[0087] In some embodiments, such as Figure 16 , Figure 17 , Figure 19 and Figure 20 As shown, when the lens sealing structure 40 of the optical lens 1 is implemented only as the second lens sealing structure 42, the first mounting area 112 of the first lens 11 and the second mounting area 122 of the second lens 12 are spaced apart along the optical axis direction. In other words, the first lens 11 and the second lens 12 do not contact each other. Furthermore, the lens barrel 20 positions the first lens 11 along the optical axis direction; specifically, the lens barrel 20 supports the first lens 11 and the second lens 12, which helps to provide a unified positioning reference, reduce the spacing error of the first lens 11 and the second lens 12 along the optical axis direction, so that the first sealing ring 421 is effectively compressed.

[0088] It is worth mentioning that, such as Figure 16 , Figure 17 , Figure 19 and Figure 20As shown, the first sealing ring 421 and the placement space 14 are arranged radially apart along the optical lens 1; in other words, the first sealing ring 421 and the humidification element 30 are arranged radially apart along the optical lens 1 to allow the humidification element 30 to release water vapor to the side where the first sealing ring 421 is located, thereby delaying the humidification element 30 from reaching saturation, and helping to avoid the released water vapor from accumulating near the first optical effective area 111 and the second optical effective area 121.

[0089] In some embodiments, such as Figure 14 and Figure 15 As shown, when the lens sealing structure 40 of the optical lens 1 is implemented to have both the first lens sealing structure 41 and the second lens sealing structure 42 described above, the distance from the first lens sealing structure 41 to the optical axis is less than the distance from the second lens sealing structure 42 to the optical axis along the radial direction of the optical lens 1.

[0090] It should be understood that the first lens sealing structure 41 provides a rigid seal, while the second lens sealing structure 42 provides a flexible seal. Even if the first lens sealing structure 41 leaks due to damage at the joint between the first lens 11 and the second lens 12, the second lens sealing structure 42 can still reduce or prevent moisture from entering the sealed cavity 13. Similarly, even if the second lens sealing structure 42 leaks due to aging, the first lens sealing structure 41 can still reduce or prevent moisture from entering the sealed cavity 13. In other words, the redundancy in this embodiment improves the reliability of the sealing connection between the first lens 11 and the second lens 12.

[0091] Furthermore, the radial distance from the first lens sealing structure 41 to the optical axis is less than the distance from the second lens sealing structure 42 to the optical axis. This arrangement allows the first sealing ring 421 to block dust and a large amount of moisture, thereby reducing the risk of corrosion or wear at the joint between the first lens 11 and the second lens 12. This makes the optical lens 1 suitable for use in harsh conditions such as heavy rain and corrosive environments, and helps to extend the service life of the optical lens 1.

[0092] It is worth mentioning that, along the radial direction of the optical lens 1, the distance from the first lens sealing structure 41 to the optical axis can also be greater than the distance from the second lens sealing structure 42 to the optical axis. This application does not impose any specific restrictions on this.

[0093] In some embodiments, such as Figure 20As shown, the second mounting area 122 includes a stepped surface 1223 for placing the first sealing ring 421, and the stepped surface 1223 is located at the edge of the second mounting area 122; the lens barrel 20 has a support surface 22 for supporting the first lens 11, and the support surface 22 is located on the outer periphery of the second lens 12; the first sealing ring 421 includes an integrally formed first sealing part 4211 and a second sealing part 4212, the first sealing part 4211 is sandwiched between the first lens 11 and the stepped surface 1223 along the optical axis, and the second sealing part 4212 is sandwiched between the first lens 11 and the support surface 22 along the optical axis. Through the second sealing part 4212, the entry of external moisture into the lens barrel 20 can be reduced or even prevented, thereby further reducing the moisture that seeps into the sealed cavity 13 between the first lens 11 and the second lens 12, which can prolong the anti-fog effect and improve the defogging efficiency.

[0094] This should be understandable, such as Figure 20 As shown, along the optical axis of the optical lens 1, the distance from the upper mounting surface 1221 of the second lens 12 to the lower mounting surface 1121 of the first lens 11 is less than the distance from the stepped surface 1223 of the second lens 12 to the lower mounting surface 1121 of the first lens 11; in other words, there is a large gap between the second lens 12 and the stepped surface 1223 and the lower mounting surface 1121 of the first lens 11, so as to match the groove depth required by the first sealing ring 421.

[0095] It is worth mentioning that the first sealing part 4211 and the second sealing part 4212 of the first sealing ring 421 can seal the connection between the first lens 11 and the second lens 12, as well as seal the connection between the first lens 11 and the lens barrel 20. This can reduce the types of materials used in the optical lens 1 and simplify the assembly process of the optical lens 1, which helps to achieve automated or semi-automated production.

[0096] In at least one embodiment, such as Figure 20 As shown, the support surface 22 and the step surface 1223 are coplanar, allowing for deviations caused by machining or assembly errors. It should be understood that this arrangement reduces the difficulty of setting the first sealing ring 421 and helps to achieve a uniform compression ratio throughout the first sealing ring 421, thus preventing localized overpressure aging or underpressure leakage and improving sealing reliability.

[0097] In at least one embodiment, such as Figure 21 and Figure 22As shown, within the plane containing the optical axis of the optical lens 1, the cross-sectional shapes of the first sealing portion 4211 and the second sealing portion 4212 are different. For example, the cross-sectional shape of the first sealing portion 4211 is rectangular, and the cross-sectional shape of the second sealing portion 4212 is circular; or the cross-sectional shape of the first sealing portion 4211 is circular, and the cross-sectional shape of the second sealing portion 4212 is rectangular. In at least one embodiment, such as Figure 19 and Figure 20 As shown, within the plane containing the optical axis of the optical lens 1, the first sealing part 4211 and the second sealing part 4212 have the same cross-sectional shape, for example, both are circular. Those skilled in the art can adjust the cross-sectional shape of the first sealing part 4211 and the second sealing part 4212 according to actual conditions, and such adjustments all fall within the protection scope of this application.

[0098] In some embodiments, such as Figures 11-14 As shown, the optical lens 1 also includes a lens barrel sealing structure 50, which is disposed between the first lens 11 and the lens barrel 20 along the optical axis direction, and / or disposed between the first lens 11 and the lens barrel 20 along the radial direction of the optical lens 1; the lens barrel sealing structure 50 includes at least one of a second sealing ring 51 and an adhesive 52.

[0099] It should be understood that by providing a lens barrel sealing structure 50 along the optical axis and / or radially between the first lens 11 and the lens barrel 20, the entry of external moisture into the lens barrel 20 can be reduced or even prevented, thereby further reducing the moisture that seeps into the sealed cavity 13 between the first lens 11 and the second lens 12, which can prolong the anti-fog effect and improve the defogging efficiency.

[0100] In at least one embodiment, such as Figure 11 and Figure 13 As shown, the first lens 11 and the lens barrel 20 are sealed together by a second sealing ring 51, which facilitates the complete disassembly of the first lens 11 during the assembly of the optical lens 1 and during subsequent maintenance for cleaning or replacement. This helps to avoid discarding the entire lens assembly 10 or even the entire optical lens 1, thereby reducing scrap losses.

[0101] It is worth mentioning that the wire diameter of the first sealing ring 421 and the wire diameter of the second sealing ring 51 can be the same; or the wire diameters of the first sealing ring 421 and the second sealing ring 51 can be different, for example, the wire diameter of the second sealing ring 51 is larger than that of the first sealing ring 421. Within the plane containing the optical axis of the optical lens 1, the cross-sectional shape of the first sealing ring 421 and the cross-sectional shape of the second sealing ring 51 can be the same, for example, both being circular; or the cross-sectional shape of the first sealing ring 421 and the second sealing ring 51 can be different, for example, one having a circular cross-sectional shape and the other a rectangular cross-sectional shape. Those skilled in the art can adjust the cross-sectional shape, wire diameter, and diameter of the first sealing ring 421 and the second sealing ring 51 according to actual circumstances, and such adjustments all fall within the protection scope of this application.

[0102] In at least one embodiment, such as Figure 12 As shown, the first lens 11 and the lens barrel 20 are sealed together by adhesive 52. It should be understood that adhesive 52 can fix the first lens 11 to the lens barrel 20 while playing a sealing role, thereby improving the drop impact resistance of the optical lens 1 and helping to prevent the first lens 11 from shifting or tilting inside the lens barrel 20.

[0103] In some embodiments, by providing a humidity regulating element 30 in the sealed cavity 13, under fogging test conditions, no fog-like condensate is generated in the first lens 11, the second lens 12, and the sealed cavity 13 during the observation period, wherein the observation period is 10 min to 60 min.

[0104] In at least one embodiment, the fogging test conditions are as follows: the optical lens 1 is placed in a temperature and humidity test chamber at 85°C and 85%RH for 500 hours, then removed and heated, followed by ice application to create water mist inside the lens. Exemplarily, the heating time can be 10-30 minutes, the heating temperature can be in the range of 95°C-115°C, the ice application can be 15-60 seconds, and the ice application temperature can be in the range of 0°C-8°C.

[0105] In at least one embodiment, the fogging test conditions are as follows: the optical lens 1 is placed in a temperature and humidity test chamber at 85°C and 85%RH for 500 hours, then removed after returning to normal temperature and humidity, and then heated to 50°C and kept at a constant temperature.

[0106] Example 1 The structure of the optical lens 1 in Embodiment 1 is as follows: Figure 7 and Figure 8As shown. The optical lens 1 includes a lens assembly 10, a lens barrel 20, and a humidifier 30. Specifically, the lens assembly 10 includes a first lens 11, a second lens 12, and a plurality of other lenses arranged sequentially along the optical axis from the object side to the image side. The upper sealing surface 1222 of the second lens 12 protrudes and fits against the lower mounting surface 1121 of the first lens 11 to form a first lens sealing structure 41; a placement space 14 is formed on the upper mounting surface 1221 of the second lens 12; the humidifier 30 is housed within the placement space 14, and the total mass of the humidifier 30 is 3 mg. Furthermore, a second sealing ring 51 is provided between the first lens 11 and the lens barrel 20 along the optical axis to seal the connection between the first lens 11 and the lens barrel 20.

[0107] In this embodiment, the object side of the first optically effective region 111 of the first lens 11 is convex, and the image side of the first optically effective region 111 is concave; the object side of the second optically effective region 121 of the second lens 12 is convex.

[0108] In this embodiment, the optical lens 1 was placed in a temperature and humidity test chamber at 85°C and 85%RH for 500 hours. After returning to normal temperature and humidity, it was taken out and then heated to 50°C and kept at a constant temperature. The fogging situation was observed under a microscope.

[0109] In this embodiment, no fog-like condensation was observed in the first lens 11, the second lens 12, and the sealed cavity 13 within 40 minutes. This indicates that the humidification element 30 in this embodiment can absorb water vapor in the sealed cavity 13 in a relatively short time, thus achieving high defogging efficiency.

[0110] Example 2 The structure of the optical lens 1 in Example 2 is as follows: Figure 9 and Figure 10 As shown. The optical lens 1 includes a lens assembly 10, a lens barrel 20, and a humidifier 30. Specifically, the lens assembly 10 includes a first lens 11, a second lens 12, and a plurality of other lenses arranged sequentially along the optical axis from the object side to the image side. The upper sealing surface 1222 of the second lens 12 protrudes and fits against the lower mounting surface 1121 of the first lens 11 to form a first lens sealing structure 41; a placement space 14 is formed on the upper mounting surface 1221 of the second lens 12; the humidifier 30 is housed within the placement space 14, and the total mass of the humidifier 30 is 5 mg. Furthermore, a second sealing ring 51 is provided between the first lens 11 and the lens barrel 20 along the optical axis to seal the connection between the first lens 11 and the lens barrel 20.

[0111] In this embodiment, the object side of the first optically effective region 111 of the first lens 11 is convex, and the image side of the first optically effective region 111 is concave; the object side of the second optically effective region 121 of the second lens 12 is convex.

[0112] In this embodiment, the optical lens 1 was placed in a temperature and humidity test chamber at 85°C and 85%RH for 500 hours. After returning to normal temperature and humidity, it was taken out and then heated to 50°C and kept at a constant temperature. The fogging situation was observed under a microscope.

[0113] In this embodiment, no fog-like condensate was observed in the first lens 11, the second lens 12, and the sealed cavity 13 within 40 minutes. It should be understood that the difference between this embodiment and Embodiment 1 is that the total mass of the humidification component 30 in this embodiment is 5 mg. By increasing the total mass of the humidification component 30, the time required to absorb water vapor in the sealed cavity 13 can be further shortened, thereby improving the defogging efficiency.

[0114] Example 3 The structure of the optical lens 1 in Example 3 is as follows: Figure 11 As shown. The optical lens 1 includes a lens assembly 10, a lens barrel 20, and a humidifier 30. Specifically, the lens assembly 10 includes a first lens 11, a second lens 12, and a plurality of other lenses arranged sequentially along the optical axis from the object side to the image side. The upper sealing surface 1222 of the second lens 12 protrudes and fits against the lower mounting surface 1121 of the first lens 11 to form a first lens sealing structure 41; a placement space 14 is formed on the upper mounting surface 1221 of the second lens 12; the humidifier 30 is housed within the placement space 14, and the total mass of the humidifier 30 is 5 mg. Furthermore, a second sealing ring 51 is provided between the first lens 11 and the lens barrel 20 along the optical axis to seal the connection between the first lens 11 and the lens barrel 20.

[0115] In this embodiment, the object side of the first optically effective region 111 of the first lens 11 is convex, and the image side of the first optically effective region 111 is concave; the object side of the second optically effective region 121 of the second lens 12 is concave.

[0116] In this embodiment, the optical lens 1 was placed in a temperature and humidity test chamber at 85°C and 85%RH for 500 hours. After returning to normal temperature and humidity, it was taken out and then heated to 50°C and kept at a constant temperature. The fogging situation was observed under a microscope.

[0117] In this embodiment, no fog-like condensation was observed in the first lens 11, the second lens 12, and the sealed cavity 13 within 40 minutes. It should be understood that the difference between this embodiment and Embodiment 2 is that the object-side surface of the second optically effective area 121 in this embodiment is concave, and the volume of the sealed cavity 13 between the first lens 11 and the second lens 12 is larger. However, the humidification element 30 can still absorb water vapor in the sealed cavity 13 within a relatively short time, thus achieving higher defogging efficiency.

[0118] Example 4 The structure of the optical lens 1 in Example 4 is as follows: Figure 21As shown. The optical lens 1 includes a lens assembly 10, a lens barrel 20, and a humidifier 30. Specifically, the lens assembly 10 includes a first lens 11, a second lens 12, and multiple other lenses arranged sequentially along the optical axis from the object side to the image side. The first lens 11 and the second lens 12 are sealed together by a first sealing portion 4211 and a second sealing portion 4212 of a first sealing ring 421; a placement space 14 is formed on the upper mounting surface 1221 of the second lens 12; the humidifier 30 is housed within the placement space 14, and the total mass of the humidifier 30 is 5 mg. Furthermore, a second sealing ring 51 is provided between the first lens 11 and the lens barrel 20 along the optical axis to seal the connection between the first lens 11 and the lens barrel 20.

[0119] In this embodiment, the optical lens 1 was placed in a temperature and humidity test chamber at 85°C and 85%RH for 500 hours. After returning to normal temperature and humidity, it was taken out and then heated to 50°C and kept at a constant temperature. The fogging situation was observed under a microscope.

[0120] In this embodiment, no fog-like condensation occurred in the first lens 11, the second lens 12, and the sealed cavity 13 within 40 minutes. Specifically, before the experimental test, the actual image of the optical lens 1 of Example 4 under a microscope is shown below. Figure 27 As shown, all components of optical lens 1 are clearly visible, with no water mist accumulation. Following experimental testing, the actual image of optical lens 1 in Example 4 under a microscope is shown below. Figure 28 As shown, all components of optical lens 1 remain clearly visible, with no water mist accumulation.

[0121] Comparative Example The comparative model employs an imaging lens 101 from related technologies, such as... Figure 1 and Figure 2 As shown, the first lens 102 of the imaging lens 101 is sealed to the lens mount 107 through a sealing member, and the humidity regulating material 105 is disposed on the lens mount 107 and located inside the sealing member; an exhaust groove 104 is provided between the first lens 102 and the second lens 103.

[0122] In this comparative example, the imaging lens 101 was placed in a temperature and humidity test chamber at 85℃ and 85%RH for 500 hours. After returning to normal temperature and humidity, it was taken out and then heated to 50℃ and kept at a constant temperature. The fogging situation was observed under a microscope, and the time for the water fog to dissipate was recorded.

[0123] In this comparative example, fog-like condensation was observed in the first lens 102, the second lens 103, and the space between them. This fogging lasted for more than 10 seconds. Specifically, before the experimental test, a microscopic image of the imaging lens 101 in the comparative example is shown below. Figure 29As shown, all components of the imaging lens 101 are clearly visible, with no water mist accumulation. Following the experimental test, a comparative image of the imaging lens 101 taken under a microscope is shown below. Figure 30 As shown, the area near the edge of the imaging lens 101 appears blurry and foggy, indicating the accumulation of water vapor.

[0124] An electronic device includes the aforementioned optical lens 1. It should be understood that using the aforementioned optical lens 1 helps prevent image blurring or glare caused by condensation and fogging on the inner surface of the first lens 11, thereby enabling the electronic device to stably output high-quality images. Furthermore, the aforementioned optical lens 1 has a long anti-fogging time and high defogging efficiency, making the electronic device equipped with the optical lens 1 suitable for use as an outdoor photography device, video doorbell, etc., and able to withstand high temperature and high humidity environments, thus helping to extend the service life of the electronic device.

[0125] A vehicle includes the aforementioned optical lens 1. It should be understood that the aforementioned optical lens 1 has high defogging efficiency, which helps to keep the inner surface of the first lens 11 dry and clean in rainy, snowy, or alternating hot and cold weather, thereby providing clear and accurate image information for driver assistance systems or autonomous driving systems and improving driving safety.

[0126] The basic principles, main features, and advantages of this invention have been described above. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made without departing from the spirit and scope of the invention, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection claimed by this invention is defined by the appended claims and their equivalents.

Claims

1. An optical lens, characterized in that, include: A lens assembly, comprising a first lens and a second lens arranged sequentially along the optical axis from the object side to the image side, wherein a lens sealing structure is provided between the edge of the first lens and the edge of the second lens, the lens sealing structure being used to detachably seal and connect the first lens and the second lens to form a sealed cavity between the first lens and the second lens; as well as A humidity regulating element is located within the sealed cavity. The humidity regulating element is used to absorb or release a portion of the moisture to regulate the humidity within the sealed cavity. The humidity regulating element is fixed to the first lens and spaced apart from the second lens along the optical axis, and / or the humidity regulating element is fixed to the second lens and spaced apart from the first lens along the optical axis.

2. The optical lens according to claim 1, characterized in that, The first lens includes a first optically effective area and a first mounting area located on the periphery of the first optically effective area. The second lens includes a second optically effective area and a second mounting area located on the periphery of the second optically effective area. The lens sealing structure is provided between the first mounting area and the second mounting area, and the sealing cavity is formed between the first lens and the second lens through the lens sealing structure. The first installation area and / or the second installation area are provided with a placement space for accommodating the humidity regulating component; Wherein, along the radial direction of the optical lens, the distance from the placement space to the optical axis is less than the distance from the lens sealing structure to the optical axis.

3. The optical lens according to claim 2, characterized in that, The lens sealing structure includes a first lens sealing structure, the second mounting area includes an upper mounting surface and an upper sealing surface, the first mounting area includes a lower mounting surface, the upper mounting surface and the lower mounting surface are spaced apart along the optical axis, the upper sealing surface protrudes from the upper mounting surface along the optical axis, and the upper sealing surface is in contact with the lower mounting surface to form the first lens sealing structure at the contact point.

4. The optical lens according to claim 2, characterized in that, The lens sealing structure includes a first lens sealing structure, the second mounting area includes an upper mounting surface, the first mounting area includes a lower mounting surface and a lower sealing surface, the upper mounting surface and the lower mounting surface are spaced apart along the optical axis, the lower sealing surface protrudes from the lower mounting surface along the optical axis, and the lower sealing surface is in contact with the upper mounting surface to form the first lens sealing structure at the contact point.

5. The optical lens according to claim 3 or 4, characterized in that, The roughness of the mating area between the first mounting area and the second mounting area is less than or equal to Ra1.

6.

6. The optical lens according to claim 3 or 4, characterized in that, Along the radial direction of the optical lens, the dimension of the mating area between the first mounting area and the second mounting area is greater than or equal to 0.3 mm.

7. The optical lens according to claim 2, characterized in that, The lens sealing structure includes a second lens sealing structure, which includes a first sealing ring. The first sealing ring is sandwiched between the first mounting area and the second mounting area along the optical axis.

8. The optical lens according to claim 2, characterized in that, The lens sealing structure includes a first lens sealing structure and a second lens sealing structure. The second mounting area includes an upper mounting surface and an upper sealing surface. The first mounting area includes a lower mounting surface. The upper mounting surface and the lower mounting surface are spaced apart along the optical axis. The upper sealing surface protrudes from the upper mounting surface along the optical axis. The upper sealing surface is in contact with the lower mounting surface to form the first lens sealing structure at the contact point. Alternatively, the second mounting area includes an upper mounting surface, and the first mounting area includes a lower mounting surface and a lower sealing surface. The upper mounting surface and the lower mounting surface are spaced apart along the optical axis. The lower sealing surface protrudes from the lower mounting surface along the optical axis. The lower sealing surface is in contact with the upper mounting surface to form the first lens sealing structure at the contact point. The second lens sealing structure includes a first sealing ring, which is sandwiched between the first mounting area and the second mounting area along the optical axis. Wherein, along the radial direction of the optical lens, the distance from the first lens sealing structure to the optical axis is less than the distance from the second lens sealing structure to the optical axis.

9. The optical lens according to claim 7 or 8, characterized in that, The optical lens also includes a lens barrel having a receiving space for accommodating the lens assembly; The second mounting area includes a stepped surface for placing the first sealing ring, the stepped surface being located at the edge of the second mounting area; The lens barrel has a support surface for supporting the first lens, and the support surface is located on the outer peripheral side of the second lens; The first sealing ring includes an integrally formed first sealing part and a second sealing part. The first sealing part is sandwiched between the first lens and the stepped surface along the optical axis, and the second sealing part is sandwiched between the first lens and the support surface along the optical axis.

10. The optical lens according to claim 1, 2, 3, 4, 7, or 8, characterized in that, The optical lens further includes a lens barrel and a lens barrel sealing structure. The lens barrel has a receiving space for accommodating the lens assembly. The lens barrel sealing structure is disposed between the first lens and the lens barrel along the optical axis, and / or disposed between the first lens and the lens barrel along the radial direction of the optical lens. The lens barrel sealing structure includes at least one of a second sealing ring and an adhesive.

11. The optical lens according to claim 1, 2, 3, 4, 7, or 8, characterized in that, In a plane perpendicular to the optical axis, the humidity regulating element is in the form of a ring, a "C" shape, or multiple arcs evenly distributed around the optical axis.

12. The optical lens according to claim 1, 2, 3, 4, 7, or 8, characterized in that, The humidity regulating component is made of modified silane-based high-permeability adhesive or UV-cured acrylic resin.

13. The optical lens according to any one of claims 1, 2, 3, 4, 7, or 8, characterized in that, By installing the humidity regulating element in the sealed cavity, under fogging test conditions, no fog-like condensation is observed in the first lens, the second lens, and the sealed cavity during the observation period, which is 10 min to 60 min.

14. An electronic device, characterized in that, Includes the optical lens as described in any one of claims 1-13.

15. A vehicle, characterized in that, Includes the optical lens as described in any one of claims 1-13.

Images