Lens assembly and optical device

Abstract

The utility model belongs to the technical field of lenses, and particularly discloses a lens assembly and an optical device, and the lens assembly comprises an electrochromic part which is provided with a first connecting surface; the dioptric lens is provided with a curvature fixing surface and a dioptric surface which are oppositely arranged, the curvature fixing surface is connected to the first connecting surface, and the curvature of the curvature fixing surface is the same as that of the first connecting surface; the curvature of the refractive surface is different from the curvature of the curvature-fixed surface. The technical problem that in the prior art, it is difficult to attach electrochromic parts to different refractive lenses can be solved.

Description

Technical Field

[0001] The present application belongs to the field of lens technology, and specifically relates to a lens assembly and an optical device. Background Art

[0002] Attaching electrochromic components to the lenses of ordinary glasses can create a color-changing effect. However, the difficulty of attaching electrochromic components to different types of glasses varies depending on the shape of the lenses. Refractive glasses, such as those for myopia and hyperopia, typically have curved lenses. Furthermore, refractive lenses require different diopters based on individual vision, and these lenses require different curvatures. Therefore, attaching electrochromic components to lenses with varying diopters is challenging. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a lens assembly and an optical device to solve the technical problem in the prior art of the difficulty in attaching electrochromic components to different refractive lenses.

[0004] To achieve the above-mentioned objectives, an embodiment of the first aspect of the present application provides a lens assembly, comprising: an electrochromic component having a first connecting surface; a refractive lens having a curvature-fixed surface and a refractive surface arranged opposite to each other, the curvature-fixed surface being connected to the first connecting surface, the curvature of the curvature-fixed surface being the same as the curvature of the first connecting surface; and the curvature of the refractive surface being different from the curvature of the curvature-fixed surface.

[0005] In some embodiments, the curvature-fixed surface is a cylinder or a plane.

[0006] In some embodiments, the electrochromic element further has a second connecting surface opposite to the first connecting surface; the lens assembly further includes a light-transmitting element, the light-transmitting element having a first protective surface, the first protective surface being connected to the second connecting surface, and the curvature of the first protective surface is the same as the curvature of the second connecting surface.

[0007] In some embodiments, the curvature of the first protective surface is the same as the curvature of the curvature-fixing surface, and the curvature radius of the first protective surface is greater than or equal to 50 mm.

[0008] In some embodiments, the lens assembly further includes: a first optical adhesive layer disposed between the first connecting surface and the curvature fixing surface, and the opposite sides of the first optical adhesive layer are respectively bonded to the first connecting surface and the curvature fixing surface; and / or, the lens assembly further includes: a second optical adhesive layer disposed between the second connecting surface and the first protective surface, and the opposite sides of the second optical adhesive layer are respectively bonded to the second connecting surface and the first protective surface.

[0009] In some embodiments, the lens assembly also includes a first sealant layer, which is arranged between the curvature-fixed surface and the first protective surface, and is sealed and bonded to the curvature-fixed surface and the first protective surface; the first sealant layer, the curvature-fixed surface, and the first protective surface form a first sealed space, and the electrochromic component is accommodated in the first sealed space.

[0010] In some embodiments, the lens assembly further comprises a water vapor barrier layer, which is disposed on the curvature-fixed surface and / or the first protective surface.

[0011] In some embodiments, the electrochromic element includes a first substrate layer, a first conductive layer, an electrochromic material layer, an electrolyte layer, an ion storage layer, a second conductive layer, and a second substrate layer stacked in sequence; the first connecting surface is formed on a side of the first substrate layer away from the second substrate layer; or, the first connecting surface is formed on a side of the second substrate layer away from the first substrate layer.

[0012] In some embodiments, the electrochromic component also includes a second sealant layer, which is arranged between the first substrate layer and the second substrate layer, and is sealed and bonded to the first substrate layer and the second substrate layer; the second sealant layer and the first substrate layer and the second substrate layer form a second sealed space, and the electrochromic material layer, the electrolyte layer, and the ion storage layer are accommodated in the second sealed space.

[0013] An embodiment of the second aspect of the present application provides an optical device, comprising the lens assembly of any one of the embodiments of the first aspect.

[0014] In some embodiments, the optical device includes at least two lens components, and the curvatures of the curvature-fixing surfaces of the two lens components are the same, and the curvatures of the refractive surfaces of the two lens components are the same or different.

[0015] The lens assembly and optical device provided by the present application have the following advantages: by setting the curvature-fixing surface on the refractive lens that connects to the electrochromic element to a fixed curvature, that is, by setting the first connecting surface on the curvature-fixing surface of the refractive lens, the refractive surface can be set to a fixed diopter according to the refractive lens's diopter requirements. By simply setting the shape of the electrochromic element according to the curvature-fixing surface, it is possible to adapt to myopia lenses and hyperopia lenses of different diopters, thereby facilitating the placement of the electrochromic element on either the myopia lens or the hyperopia lens. The connection process between the refractive lens and the electrochromic element is the same for different refractive lenses and electrochromic elements, enabling the electrochromic element to be connected to different refractive lenses using the same process or equipment, making it easy to connect the electrochromic element to different refractive lenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 Schematic diagram of lens assembly provided in some embodiments of the present application Figure 1 ;

[0018] Figure 2 Schematic diagram of lens assembly provided in some embodiments of the present application Figure 2 ;

[0019] Figure 3 Schematic diagram of lens assembly provided in some embodiments of the present application Figure 3 ;

[0020] Figure 4 for Figure 2 Schematic diagram of the internal structure of the middle lens assembly Figure 1 ;

[0021] Figure 5 for Figure 2 Schematic diagram of the internal structure of the middle lens assembly Figure 2 ;

[0022] Figure 6 for Figure 2 Schematic diagram of the internal structure of the middle lens assembly Figure 3 ;

[0023] Figure 7 for Figure 2 Schematic diagram of the internal structure of the middle lens assembly Figure 4 .

[0024] Among them, the reference numerals in the figures are:

[0025] 100. Lens assembly;

[0026] 10. Refractive lens; 11. Curvature fixed surface; 12. Refractive surface;

[0027] 20. Electrochromic element; 21. First substrate layer; 22. Electrochromic layer assembly; 221. First conductive layer; 222. Electrochromic material layer; 223. Electrolyte layer; 224. Ion storage layer; 225. Second conductive layer; 23. Second substrate layer; 24. Second sealant layer; 25. First connecting surface; 26. Second connecting surface;

[0028] 30. Light-transmitting member; 31. First protective surface; 32. Second protective surface;

[0029] 40. First sealant layer;

[0030] 50. First optical adhesive layer;

[0031] 60. Second optical adhesive layer;

[0032] 70. Water vapor barrier. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0034] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0037] Embodiments of the present application provide a lens assembly and an optical device for changing the color of light passing through a refractive lens.

[0038] The embodiment of the first aspect of the present application provides a lens assembly, which is used in myopia glasses or hyperopia glasses to adjust the light and adapt to people with different degrees of myopia. Figures 1 to 3The lens assembly 100 includes an electrochromic element 20 and a diopter lens 10. The electrochromic element 20 has a first connecting surface 25. The diopter lens 10 has a curvature-fixed surface 11 and a diopter surface 12 that are oppositely disposed. The curvature-fixed surface 11 is connected to the first connecting surface 25. The curvature of the curvature-fixed surface 11 is the same as that of the first connecting surface 25. The curvature of the diopter surface 12 is different from that of the curvature-fixed surface 11.

[0039] Electrochromic element 20 can change the optical properties of its internal electrochromic material in response to changes in the applied electric field. This change in optical properties allows electrochromic element 20 to transmit different light rays. Electrochromic element 20 is a flexible electrochromic film that can be bent into a desired curve.

[0040] Refractive lenses 10 refract light and change its direction. These lenses, including myopia lenses and hyperopia lenses, can correct nearsightedness or farsightedness. Typical myopia or hyperopia lenses have a fixed curvature on the surface facing away from the eye. The curvature of the surface facing closer to the eye is adjusted to change the lens's diopter.

[0041] The refractive lens 10 has a fixed curvature surface 11. That is, in different electrochromic elements 20, the fixed curvature surfaces 11 of different refractive lenses 10 have the same curvature. The fixed curvature surface 11 can be a spherical surface, a cylindrical surface, a flat surface, or another curved surface. The curvature of the fixed curvature surface 11 is the same as that of the first connecting surface 25. That is, the minimum distance between each position on the first connecting surface 25 and the fixed curvature surface 11 is the same.

[0042] The refractive surface 12 refers to a surface that can be configured with different curvatures in different refractive lenses 10. The curvatures of the refractive surfaces 12 of different refractive lenses 10 can be the same or different. When the curvatures of the refractive surfaces 12 of different refractive lenses 10 are different, the refractive lenses 10 can be configured with different diopters. When the curvatures of the refractive surfaces 12 of different refractive lenses 10 are the same, the refractive lenses 10 can be configured with the same diopters. Optionally, the refractive surface 12 can be a plane, a cylindrical surface, a spherical surface, or other curved surface.

[0043] The refractive power of the refractive lens 10 is related to the curvature of the curvature-fixed surface 11 and the curvature of the refractive surface 12. Since the curvature of the curvature-fixed surface 11 of different refractive lenses 10 is the same, the refractive power of different refractive lenses 10 can be changed by changing the curvature of the refractive surface 12, so that the electrochromic element 20 can adapt to refractive lenses 10 with different refractive powers.

[0044] The beneficial effects of the embodiments of the present application are as follows: by setting the curvature fixing surface 11 of the refractive lens 10 that connects to the electrochromic element 20 to a fixed curvature, that is, by setting the first connecting surface 25 on the curvature fixing surface 11 of the refractive lens 10, the refractive surface 12 can be set to a fixed diopter according to the refractive power requirements of the refractive lens 10. Simply by adjusting the shape of the electrochromic element 20 according to the curvature fixing surface 11, it is possible to adapt to myopia lenses and hyperopia lenses of different diopters, thereby facilitating the placement of the electrochromic element 20 on either myopia lens or hyperopia lens. The connection process between the refractive lens 10 and the electrochromic element 20 is the same for different refractive lenses 10 and electrochromic elements 20. The electrochromic element 20 can be connected to different refractive lenses 10 using the same process or equipment, making it easy to connect the electrochromic element 20 to different refractive lenses 10.

[0045] In some embodiments, please refer to Figures 1 to 3 , the curvature fixed surface 11 is a cylinder or a plane.

[0046] It can be understood that the curvature fixed surface 11 can be a cylindrical surface or a flat surface.

[0047] The cylinder is a curved surface formed by the moving straight line moving parallel to a fixed curve. The moving straight line forming the curvature fixed surface 11 can extend along the length direction of the curvature fixed surface 11 or along the width direction of the curvature fixed surface 11.

[0048] The beneficial effect of the embodiment of the present application is that: when the electrochromic element 20 is in the form of a flexible film, wrinkles are easily generated when the electrochromic element 20 is attached to a spherical surface. The embodiment of the present application sets the curvature-fixed surface 11 to a cylindrical surface or a plane, which makes it convenient to preheat and bend the soft film-shaped electrochromic element 20 into a shape similar to the curvature-fixed surface, and then attach it to the curvature-fixed surface 11 without easily generating wrinkles.

[0049] In some embodiments, please refer to Figures 1 to 3 The electrochromic element 20 also has a second connecting surface 26 opposite to the first connecting surface 25; the lens assembly 100 also includes a light-transmitting element 30, which has a first protective surface 31, which is connected to the second connecting surface 26, and the curvature of the first protective surface 31 is the same as the curvature of the second connecting surface 26.

[0050] The second connecting surface 26 is opposite to the first connecting surface 25 , that is, the second connecting surface 26 is located on the side of the electrochromic element 20 away from the refractive lens 10 , and light can pass through the electrochromic element 20 via the second connecting surface 26 and the first connecting surface 25 .

[0051] The light-transmitting element 30 is light-transmitting. Optionally, the light-transmitting element 30 comprises a light-transmitting film, a light-transmitting lens, or the like. Optionally, the light-transmitting element 30 is configured as a cylindrical lens. When the light-transmitting element 30 is a light-transmitting film, the overall thickness of the lens assembly 100 is reduced. When the light-transmitting element 30 is a light-transmitting lens, the shape of the light-transmitting element 30 is fixed, facilitating connection to the electrochromic element 20.

[0052] The first protective surface 31 is connected to the side of the electrochromic element 20 facing away from the dioptric lens 10. Specifically, the electrochromic element 20 is sandwiched between the translucent element 30 and the dioptric lens 10. The curvature of the first protective surface 31 is identical to that of the second connecting surface 26. In other words, the minimum distance between each position on the first protective surface 31 and the second connecting surface 26 is equal. Because the electrochromic element 20 is a flexible electrochromic film, it can be bonded to the translucent element 30 first, and then to the dioptric lens 10, improving the manufacturing efficiency of the lens assembly 100.

[0053] The curvature of the first connecting surface 25 and the curvature of the second connecting surface 26 can be the same or different; when the curvature of the first connecting surface 25 is the same as the curvature of the second connecting surface 26, the curvature of the first protective surface 31 is the same as the curvature of the curvature fixing surface 11; when the curvature of the first connecting surface 25 and the curvature of the second connecting surface 26 are different, the curvature of the first protective surface 31 is different from the curvature of the curvature fixing surface 11.

[0054] The refractive lens 10 needs to be configured according to different vision conditions. The surface of the light-transmitting element 30 opposite the first protective surface 31 is defined as the second protective surface 32. The refractive power of the light-transmitting element 30 is related to the curvature of the first protective surface 31 and the curvature of the second protective surface 32. Optionally, the second protective surface 32 can be a spherical surface, a cylindrical surface, a plane, or other curved surface. The refractive power of the lens assembly 100 is related to the refractive power of the refractive lens 10 and the light-transmitting element 30. Optionally, the second protective surface 32 has the same curvature as the first protective surface 31 and the curvature fixing surface 11. Optionally, the light-transmitting element 30 is configured as a flat lens.

[0055] During the manufacturing process of the lens assembly 100, the electrochromic element 20 and the light-transmitting element 30 are bonded and fixed according to the refractive power of the lens assembly 100, and then connected to the refractive lens 10 of a specific refractive power; in this way, the assembly in which the electrochromic element 20 and the light-transmitting element 30 are connected together can be pre-fabricated, and after the refractive lens 10 is prepared, it can be quickly connected to the electrochromic element 20 and the light-transmitting element 30, thereby facilitating the production of the lens assembly 100.

[0056] The beneficial effects of the embodiments of the present application are as follows: the light-transmitting member 30 can shield the electrochromic member 20 from one side of the refractive lens 10, reducing wear on the electrochromic member 20. The curvature of the first protective surface 31 is identical to that of the second connecting surface 26, allowing the light-transmitting member 30 to fit tightly against the second connecting surface 26, effectively protecting the second connecting surface 26. The light-transmitting member 30 can also function as a refractive lens. When combined with the refractive lens 10, the light-transmitting member 30 facilitates flexible configuration of the diopter of the lens assembly 100.

[0057] In some embodiments, the light-transmitting element 30 includes a light-transmitting lens.

[0058] The light-transmitting lens is a lens that can transmit light. Optionally, the light-transmitting lens can be a cylindrical mirror or a plane mirror. The first protective surface 31 of the cylindrical mirror or the plane mirror is cylindrical or flat, which facilitates the attachment of the soft film-like electrochromic element 20 to the light-transmitting element 30. In addition, the cylindrical mirror can also reduce reflections.

[0059] The beneficial effect of the embodiment of the present application is that: compared with the transparent film, the shape of the first protective surface 31 of the transparent lens is stable, which facilitates the connection between the transparent component 30 and the electrochromic component 20, thereby facilitating the arrangement of the electrochromic component 20 on the refractive lens.

[0060] In some embodiments, the curvature of the first protective surface 31 is the same as the curvature of the curvature fixing surface 11 , and the curvature radius of the first protective surface 31 is greater than or equal to 50 mm.

[0061] The curvature of the first protective surface 31 is the same as that of the curvature-fixing surface 11. That is, the curvatures of the curvature-fixing surface 11, the first connecting surface 25, the second connecting surface 26, and the first protective surface 31 are the same. Because the first protective surface 31 of the light-transmitting member 30 is the same as the curvature-fixing surface 11, after the electrochromic element 20 is bonded to the first protective surface 31, a surface identical to the curvature-fixing surface 11 is formed. Therefore, the light-transmitting member 30 can be adapted to refractive lenses 10 of different diopters simply by matching the first protective surface 31 to the curvature-fixing surface 11 of the refractive lens 10.

[0062] The curvature radius of the first protective surface 31 is greater than or equal to 50 mm, that is, the curvature radius of the curvature fixing surface 11 , the curvature radius of the first connecting surface 25 and the curvature radius of the second connecting surface 26 are greater than or equal to 50 mm.

[0063] The beneficial effect of the embodiment of the present application is that the curvatures of the first connecting surface 25 and the second connecting surface 26 are the same, so the thickness of the electrochromic element 20 is uniform, which facilitates the manufacture of the electrochromic element 20. The radius of curvature of the first protective surface 31 is greater than or equal to 50 mm. The large radius of curvature and the small degree of curvature of the first protective surface 31 facilitate the attachment of the soft film-like electrochromic element 20 to the first protective surface 31 and the curvature fixing surface 11.

[0064] In some embodiments, please refer to Figure 4 and Figure 5 The lens assembly 100 also includes: a first optical adhesive layer 50 arranged between the first connecting surface 25 and the curvature fixing surface 11, and the opposite sides of the first optical adhesive layer 50 are respectively bonded to the first connecting surface 25 and the curvature fixing surface 11; and / or, the lens assembly 100 also includes: a second optical adhesive layer 60 arranged between the second connecting surface 26 and the first protective surface 31, and the opposite sides of the second optical adhesive layer 60 are respectively bonded to the second connecting surface 26 and the first protective surface 31.

[0065] The first optical adhesive layer 50 is a removable and light-transmitting adhesive layer, which is less likely to leave adhesive residue when removed. The curvature of the side of the first optical adhesive layer 50 bonded to the first connecting surface 25 is the same as that of the first connecting surface 25, and the curvature of the side of the first optical adhesive layer 50 bonded to the curvature fixing surface 11 is the same as that of the curvature fixing surface 11. The thickness of the first optical adhesive layer 50 is uniform or substantially uniform, and the directions of light in the first optical adhesive layer 50 and light transmitted through the first optical adhesive layer 50 are the same or substantially the same. The first optical adhesive layer 50 is bonded to the first connecting surface 25 and the curvature fixing surface 11. In other words, the refractive lens 10 and the electrochromic element 20 are bonded via the first optical adhesive layer 50. Optionally, the first optical adhesive layer 50 is an optically clear adhesive (OCA) that is removable, has high light transmittance, and strong adhesion.

[0066] The second optical adhesive layer 60 is a peelable and light-transmitting adhesive layer, and is unlikely to leave adhesive residue when the second optical adhesive layer 60 is removed. The curvature of the side of the second optical adhesive layer 60 bonded to the second connecting surface 26 is the same as the curvature of the second connecting surface 26, and the curvature of the side of the second optical adhesive layer 60 bonded to the first protective surface 31 is the same as the curvature of the first protective surface 31. The thickness of the second optical adhesive layer 60 is uniform or approximately uniform, and the direction of light in the second optical adhesive layer 60 and the direction of light transmitted through the second optical adhesive layer 60 are the same or approximately the same. The second optical adhesive layer 60 is bonded to the second connecting surface 26 and the first protective surface 31. In other words, the light-transmitting component 30 and the electrochromic component 20 are bonded via the second optical adhesive layer 60. Optionally, the second optical adhesive layer 60 is an optically clear adhesive (OCA) that is peelable, has high light transmittance, and strong adhesion.

[0067] A first optical adhesive layer 50 may be provided between the first connecting surface 25 and the curvature fixing surface 11, and a second optical adhesive layer 60 may not be provided between the second connecting surface 26 and the first protective surface 31; or the first optical adhesive layer 50 may not be provided between the first connecting surface 25 and the curvature fixing surface 11, and a second optical adhesive layer 60 may be provided between the second connecting surface 26 and the first protective surface 31; or the first optical adhesive layer 50 may be provided between the first connecting surface 25 and the curvature fixing surface 11, and a second optical adhesive layer 60 may be provided between the second connecting surface 26 and the first protective surface 31.

[0068] The beneficial effects of the embodiments of the present application are as follows: the electrochromic component 20 and the refractive lens 10 are bonded together by the first optical adhesive layer 50, which facilitates the separation of the electrochromic component 20 from the refractive lens 10; the light-transmitting component 30 and the electrochromic component 20 are bonded together by the second optical adhesive layer 60, which facilitates the separation of the electrochromic component 20 from the light-transmitting component 30; the first optical adhesive layer 50 and the second optical adhesive layer 60 enable the lens assembly 100 to have good light transmittance, and facilitate the replacement of the electrochromic component 20, the light-transmitting component 30 and the refractive lens 10 in the lens assembly 100.

[0069] In some embodiments, please refer to Figure 4 and Figure 5 The lens assembly 100 also includes a first sealing layer 40, which is arranged between the curvature fixing surface 11 and the first protective surface 31, and is sealed and bonded to the curvature fixing surface 11 and the first protective surface 31; the first sealing layer 40, the curvature fixing surface 11, and the first protective surface 31 form a first sealed space, and the electrochromic component 20 is accommodated in the first sealed space, reducing external water vapor from entering the electrochromic component 20, thereby preventing water vapor from accelerating the failure of the electrochromic component 20.

[0070] The first sealant layer 40, the curvature fixed surface 11 and the first protective surface 31 form a first sealed space. Since the curvature fixed surface 11 and the first protective surface 31 are spaced apart, the first sealant layer 40 is an annular structure, forming an annular wall of the first sealed space.

[0071] The electrochromic element 20 is housed in the first sealed space, that is, the first sealed space isolates the electrochromic element 20 from the outside. The first sealant layer 40 can be spaced apart from the electrochromic element 20 or connected to the electrochromic element 20.

[0072] The beneficial effects of the embodiments of the present application are as follows: the first sealant layer 40 can protect the side wall of the electrochromic component 20 located between the first connecting surface 25 and the second connecting surface 26; the first sealant layer 40 is connected to the refractive lens 10 and the light-transmitting component 30 to protect various positions of the electrochromic component 20, protecting the electrochromic component 20 from damage and preventing water vapor from entering the electrochromic component 20.

[0073] In some embodiments, please refer to Figure 4 The lens assembly 100 further includes a water vapor barrier layer 70 , which is disposed on the curvature fixed surface 11 and / or the first protective surface 31 .

[0074] The water vapor barrier layer 70 is used to prevent water vapor from penetrating and includes a water vapor barrier film, a coating or plating layer formed of a water vapor barrier material, a dense oxide film, or an organic film.

[0075] It can be understood that the water vapor barrier layer 70 can be provided on the curvature fixed surface 11 or on the first protective surface 31 , and the water vapor barrier layer 70 can also be provided on both the curvature fixed surface 11 and the first protective surface 31 .

[0076] Optionally, the water vapor transmission rate (WVTR) of the water vapor barrier layer 70 is less than 1*10 -2 g / ㎡ / day, with good water vapor barrier effect.

[0077] The water vapor transmission rates of the refractive lens 10 and the light-transmitting element 30 of different materials are different. When the refractive lens 10 and the light-transmitting element 30 are made of polycarbonate (PC) or other materials with a water vapor transmission rate less than 1*10 -1 When the material is made of a material with a density of g / m2 / day, the refractive lens 10 and the light-transmitting member 30 have a poor water vapor barrier effect. When the temperature is greater than or equal to 40°C and the humidity is greater than or equal to 95%, water vapor can easily pass through the refractive lens 10 or the light-transmitting member 30 and enter the electrochromic member 20. Providing a water vapor barrier layer 70 on the curvature-fixed surface 11 can prevent water vapor from passing through the refractive lens and entering the electrochromic member 20. Providing a water vapor barrier layer 70 on the first protective surface 31 can also prevent water vapor from passing through the light-transmitting member 30 and entering the electrochromic member 20, thereby reducing the risk of water vapor entering the electrochromic member 20 and causing damage to the electrochromic member 20.

[0078] In some embodiments, please refer to Figure 6 and Figure 7 The electrochromic element 20 includes a first substrate layer 21, a first conductive layer 221, an electrochromic material layer 222, an electrolyte layer 223, an ion storage layer 224, a second conductive layer 225 and a second substrate layer 23 stacked in sequence; the first connecting surface 25 is formed on a side of the first substrate layer 21 away from the second substrate layer 23; or, the first connecting surface 25 is formed on a side of the second substrate layer 23 away from the first substrate layer 21.

[0079] The first substrate layer 21 and the second substrate layer 23 are substrates that support the first conductive layer 221 , the electrochromic material layer 222 , the electrolyte layer 223 , and the ion storage layer 224 .

[0080] The first connection surface 25 is formed on the side of the first substrate layer 21 away from the second substrate layer 23; alternatively, the first connection surface 25 is formed on the side of the second substrate layer 23 away from the first substrate layer 21. That is, the first connection surface 25 can be formed on the side of the first substrate layer 21 away from the second substrate layer 23, with the first substrate layer 21 connected to the curvature-fixed surface 11, and the second connection surface 26 can be formed on the side of the second substrate layer 23 away from the first substrate layer 21, with the second substrate layer 23 connected to the first protective surface 31. Alternatively, the first connection surface 25 can be formed on the side of the second substrate layer 23 away from the first substrate layer 21, with the second substrate layer 23 connected to the curvature-fixed surface 11, and the second connection surface 26 can be formed on the side of the first substrate layer 21 away from the second substrate layer 23, with the first substrate layer 21 connected to the first protective surface 31.

[0081] Optionally, the first substrate layer 21 and the second substrate layer 23 include polyethylene terephthalate (PTE), which has good light transmittance and insulation properties and can provide insulation protection for the electrochromic layer group 22. Optionally, a barrier film is provided on the first substrate layer 21 and the second substrate layer 23 to prevent water vapor and oxygen from entering the first conductive layer 221 and the second conductive layer 225.

[0082] The first conductive layer 221 and the second conductive layer 225 include conductive materials and are used to connect the positive and negative electrodes of an external power source to form an electric field. Optionally, the first conductive layer 221 and the second conductive layer 225 can be made of indium tin oxide (ITO), which can form a current path and has good light transmittance.

[0083] The electrochromic material layer 222 includes an electrochromic material. Optionally, the electrochromic material layer 222 may include tungsten trioxide, molybdenum oxide, etc., which can change color between dark and light colors.

[0084] The electrolyte layer 223 includes an electrolyte capable of transporting ions. Optionally, the electrolyte layer 223 includes a lithium salt, a cobalt metal complex, or the like.

[0085] The ion storage layer 224 can store ions. Optionally, the ion storage layer 224 includes titanium dioxide, niobium pentoxide, etc., which have good ion storage performance and stability.

[0086] Under the action of the electric field, ions in the ion storage layer 224 are transferred from the electrolyte layer 223 to the electrochromic material layer 222, and the electrochromic material changes color after a reaction; after the electric field is removed, ions in the electrochromic material layer 222 are transferred from the electrolyte layer 223 to the ion storage layer 224, and the electrochromic material is restored.

[0087] The beneficial effect of the embodiment of the present application is that the structure of the electrochromic element 20 can change color when connected to a power source, thereby changing the optical properties of the lens assembly 100.

[0088] In some embodiments, please refer to Figure 6 and Figure 7 The electrochromic element 20 also includes a second sealant layer 24, which is arranged between the first substrate layer 21 and the second substrate layer 23, and is sealed and bonded to the first substrate layer 21 and the second substrate layer 23; the second sealant layer 24 and the first substrate layer 21 and the second substrate layer 23 form a second sealed space, and the electrochromic material layer 222, the electrolyte layer 223, and the ion storage layer 224 are accommodated in the second sealed space.

[0089] For ease of description, the electrochromic material layer 222, the electrolyte layer 223, and the ion storage layer 224 are defined as comprising the electrochromic layer assembly 22. The second sealant layer 24 may be a light-opaque sealant. If the second sealant layer 24 is light-opaque, it may be disposed along the edge of the electrochromic layer assembly 22 without affecting the light transmission effect of the electrochromic layer assembly 22.

[0090] The second sealant layer 24 may also be a light-transmitting sealant. In the case where the second sealant layer 24 is light-transmitting, the second sealant layer 24 may be disposed along the edge of the electrochromic layer assembly 22 or at any position on the electrochromic layer assembly 22 without affecting the light-transmitting effect of the electrochromic layer assembly 22.

[0091] The second sealant layer 24 , the first substrate layer 21 and the second substrate layer 23 form a second sealed space. Since the first substrate layer 21 and the second substrate layer 23 are spaced apart, the second sealant layer 24 is an annular structure, forming an annular wall of the second sealed space.

[0092] The electrochromic layer assembly 22 is housed in the second sealed space, that is, the second sealed space isolates the electrochromic layer assembly 22 from the outside. The second sealant layer 24 can be spaced apart from the electrochromic layer assembly 22 or connected to the electrochromic layer assembly 22.

[0093] Optionally, the electrochromic element 20 further includes a lead-out structure connected to the first conductive layer 221 and the second conductive layer 225 , and the lead-out structure is used to electrically connect the first conductive layer 221 and the second conductive layer 225 to a power source.

[0094] The beneficial effect of the embodiment of the present application is that the first sealant layer 40 is connected to the first substrate layer 21 and the second substrate layer 23 to form a second sealed space, which can protect various positions of the electrochromic layer group 22 and prevent water vapor from entering the electrochromic layer group 22.

[0095] An embodiment of the second aspect of the present application provides an optical device, comprising the lens assembly 100 of any one of the embodiments of the first aspect.

[0096] Optionally, the optical device includes glasses, cameras, lenses, etc.

[0097] The beneficial effect of the embodiments of the present application is that by applying the lens assembly 100 of the first embodiment to optical devices, the electrochromic element 20 can be conveniently connected to different optical devices, thereby having all the advantages of the lens assembly 100.

[0098] In some embodiments, the optical device includes at least two lens assemblies 100 , and the curvature of the curvature-fixing surfaces 11 of the two lens assemblies 100 is the same, and the curvature of the refractive surfaces 12 of the two lens assemblies 100 is the same or different.

[0099] The optical device may include two lens assemblies 100 , or may include more than two lens assemblies 100 .

[0100] The curvature of the curvature fixing surface 11 of the two lens assemblies 100 is the same. When the refractive powers of the refractive lenses 10 in the two lens assemblies 100 are different, the two refractive surfaces 12 can be set to different curvatures; when the refractive powers of the refractive lenses 10 in the two lens assemblies 100 are the same, the two refractive surfaces 12 can be set to the same curvature.

[0101] The beneficial effect of the embodiment of the present application is that the refractive lenses 10 in different lens assemblies 100 in the optical device can be connected to the same electrochromic component 20, which reduces the difficulty of connecting different refractive lenses 10 and the electrochromic component 20 in the optical device.

[0102] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A lens assembly, characterized in that: include: an electrochromic element having a first connection surface; A refractive lens comprises a curvature-fixing surface and a refractive surface which are arranged opposite to each other, wherein the curvature-fixing surface is connected to the first connecting surface, and the curvature of the curvature-fixing surface is the same as that of the first connecting surface; and the curvature of the refractive surface is different from that of the curvature of the curvature-fixing surface.

2. The lens assembly according to claim 1, wherein The curvature fixed surface is a cylindrical surface or a flat surface.

3. The lens assembly according to claim 1, wherein: The electrochromic element further has a second connecting surface opposite to the first connecting surface; The lens assembly further includes a light-transmitting member having a first protective surface connected to the second connecting surface, and a curvature of the first protective surface is the same as a curvature of the second connecting surface.

4. The lens assembly according to claim 3, wherein: The curvature of the first protective surface is the same as the curvature of the curvature fixing surface, and the curvature radius of the first protective surface is greater than or equal to 50 mm.

5. The lens assembly according to claim 3, wherein: The lens assembly further includes: a first optical adhesive layer disposed between the first connecting surface and the curvature fixing surface, wherein opposite sides of the first optical adhesive layer are respectively bonded to the first connecting surface and the curvature fixing surface; and / or, The lens assembly further includes: a second optical adhesive layer disposed between the second connecting surface and the first protective surface, wherein opposite sides of the second optical adhesive layer are respectively adhered to the second connecting surface and the first protective surface.

6. The lens assembly according to claim 3, wherein: The lens assembly further includes a first sealant layer, which is disposed between the curvature fixing surface and the first protective surface and is sealed and bonded to the curvature fixing surface and the first protective surface; The first sealant layer, the curvature fixing surface, and the first protective surface form a first sealed space, and the electrochromic component is accommodated in the first sealed space.

7. The lens assembly according to claim 3, wherein: The lens assembly further comprises a water vapor barrier layer, which is arranged on the curvature fixed surface and / or the first protective surface.

8. The lens assembly according to any one of claims 1 to 7, wherein: The electrochromic element comprises a first substrate layer, a first conductive layer, an electrochromic material layer, an electrolyte layer, an ion storage layer, a second conductive layer and a second substrate layer which are stacked in sequence; The first connecting surface is formed on a side of the first substrate layer away from the second substrate layer; or, The first connecting surface is formed on a side of the second substrate layer away from the first substrate layer.

9. An optical device, characterized in that: A lens assembly comprising the lens assembly according to any one of claims 1 to 8.

10. The optical device according to claim 9, wherein The optical device includes at least two lens components, and the curvatures of the curvature-fixing surfaces of the two lens components are the same, and the curvatures of the refractive surfaces of the two lens components are the same or different.

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