Optical apparatus, lens and lens adjusting system

Abstract

An optical apparatus, a lens and a lens adjusting system. The optical apparatus comprises a housing and a light-transmitting structure arranged on the housing. The housing and the light-transmitting structure define a chamber adapted to accommodate a first liquid and a second liquid that have different refractive indexes and are immiscible with each other. The chamber comprises a first wall configured to provide surface energy that limits the movement of the first liquid, and a second wall configured to provide surface energy that limits the movement of the second liquid. The first wall and the second wall are each provided with at least one through hole leading to a control component, so as for an adjustment of the amount of the first liquid and the second liquid to change the radius of curvature of the interface of the first liquid and the second liquid.

Description

Optical device, lens and lens adjustment system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application number 202323273085.4, filed with the China Patent Office on November 30, 2023, entitled “Optical device, lens and lens adjustment system,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the technical field of liquid lenses, and in particular, to an optical device, a lens, and a lens adjustment system. Background Art

[0004] Among related technologies, the more mature liquid lens is a variable-focus optical lens that utilizes the principle of electrowetting on a medium. Electrowetting refers to the phenomenon in which a droplet deforms and displaces by applying a voltage between the upper and lower substrates to change the contact angle. This type of liquid lens is specifically constructed by encapsulating two liquids in a cylindrical container with both sides transparent. One of the liquids is a conductive aqueous solution, and the other is a non-conductive oil solution. The focal length can be changed by changing the curvature radius of the interface between the two liquids through electric field drive. However, the electrowetting phenomenon will increase energy consumption, and there are safety risks such as leakage during the use of the liquid lens.

[0005] Summary of the Invention

[0006] The purpose of the present disclosure is to provide an optical device, a lens, and a lens adjustment system, which can reduce energy consumption, improve safety, and achieve precise focusing, so as to at least partially solve the above technical problems.

[0007] In order to achieve the above object, according to a first aspect of the present disclosure, an optical device is provided, comprising:

[0008] housing; and

[0009] A light-transmitting structure is arranged on the shell, and the shell and the light-transmitting structure construct a chamber suitable for accommodating a first liquid and a second liquid with different refractive indices and immiscible with each other. The light-transmitting structure is used to form a light path for light to pass through together with the first liquid and the second liquid. The chamber includes a first wall for contacting the first liquid and a second wall for contacting the second liquid. The first wall is configured to provide surface energy for limiting the movement of the first liquid, and the second wall is configured to provide surface energy for limiting the movement of the second liquid. At least one through hole is provided on each of the first wall and the second wall, and the at least one through hole is used to communicate with a control component to adjust the amount of the first liquid and the second liquid through the control component to change the curvature radius of the interface between the first liquid and the second liquid.

[0010] Optionally, at least a portion of the first wall is configured as a hydrophilic and oleophobic structure, and at least a portion of the second wall is configured as an oleophilic and hydrophobic structure.

[0011] Optionally, the first wall includes a first composite layer, the first composite layer includes a first supporting layer and a hydrophilic and oleophobic structure stacked on an inner side of the first supporting layer; and / or,

[0012] The second wall includes a second composite layer, and the second composite layer includes a second supporting layer and an oleophilic and hydrophobic structure stacked and arranged inside the second supporting layer.

[0013] Optionally, the first wall includes a first plate and a first seal, the second wall includes a second plate and a second seal, the first seal is connected to the second seal and is located between the first plate and the second plate, the light-transmitting structure includes a first light-transmitting portion connected to the first plate and a second light-transmitting portion connected to the second plate, the first seal, the second seal, the first plate, the second plate, the first light-transmitting portion and the second light-transmitting portion together form the chamber, the first seal includes the hydrophilic and oleophobic structure, and the second seal includes the oleophilic and hydrophobic structure.

[0014] Optionally, at least one of the first light-transmitting portion and the second light-transmitting portion is perpendicular to the central axis of the interface.

[0015] Optionally, a first light-transmitting hole is provided on the first plate body, and the first light-transmitting portion is constructed as a first optical lens covering the first light-transmitting hole, and / or a second light-transmitting hole is provided on the second plate body, and the second light-transmitting portion is constructed as a second optical lens covering the second light-transmitting hole.

[0016] Optionally, a radial dimension of the first light-transmitting hole and / or the second light-transmitting hole is not less than 30 mm.

[0017] Optionally, the inner diameters of the first seal and the second seal are the same, and the length of at least one of the first seal and the second seal along the central axis of the interface is not less than one-fifth of the inner diameter of the first seal or the second seal.

[0018] Optionally, the first plate body and the second plate body are connected via a connecting assembly, so that the first sealing member and the second sealing member are clamped between the first plate body and the second plate body.

[0019] According to a second aspect of the present disclosure, a lens is provided, comprising the above-mentioned optical device and a first liquid and a second liquid filled in the chamber.

[0020] Optionally, the first liquid is a hydrophilic medium, and the second liquid is an oleophilic medium.

[0021] Optionally, the first liquid and the second liquid have the same density.

[0022] According to a third aspect of the present disclosure, a lens adjustment system is provided, comprising a lens and the control assembly.

[0023] Optionally, the control component includes a first liquid quantity control structure and a second liquid quantity control structure, the first liquid quantity control structure including a first liquid inlet pipe connected to the through hole on the first wall and a first pumping device arranged on the first liquid inlet pipe; the second liquid quantity control structure includes a second liquid inlet pipe connected to the through hole on the second wall and a second pumping device arranged on the second liquid inlet pipe.

[0024] Optionally, the control assembly further includes a first liquid outlet pipe, a second liquid outlet pipe and a liquid storage structure, wherein the first liquid outlet pipe is connected to another through hole on the first wall, and the second liquid outlet pipe is connected to another through hole on the second wall;

[0025] Wherein, the first liquid outlet pipe is connected to the liquid storage structure, and both the first liquid inlet pipe and the second liquid outlet pipe are provided with a stop valve; or

[0026] The second liquid outlet pipe is connected to the liquid storage structure, and both the second liquid inlet pipe and the first liquid outlet pipe are provided with stop valves.

[0027] Optionally, the control assembly includes a pumping device, which is connected to the through hole on the first wall through a first liquid pipeline, and the pumping device is connected to the through hole on the second wall through a second liquid pipeline.

[0028] Through the above technical solution, the amount of the first liquid and the second liquid can be changed by the control component to change the curvature radius of the interface between the first liquid and the second liquid, thereby achieving focal length adjustment, wherein the first wall of the chamber provides surface energy to limit the movement of the first liquid, and the second wall of the chamber provides surface energy to limit the movement of the second liquid, so that when the amount of the first liquid and the second liquid is changed by the control component, part of the first liquid close to the first wall and part of the second liquid close to the second wall are not easy to flow, and the remaining liquid of the first liquid away from the first wall and the remaining liquid of the second liquid away from the second wall flow, so that the surface shape of the interface between the first liquid and the second liquid changes to convex or concave, and then the curvature radius changes, so as to reduce energy consumption, improve safety and achieve precise focusing.

[0029] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0031] FIG1 is a schematic diagram of the overall structure of an optical device provided in an exemplary embodiment of the present disclosure.

[0032] FIG. 2 is a schematic diagram of an exploded structure of an optical device provided in an exemplary embodiment of the present disclosure.

[0033] FIG3 is a schematic diagram of a convex structure at the interface between the first liquid and the second liquid provided in an exemplary embodiment of the present disclosure.

[0034] FIG4 is a schematic diagram of a structure in which the interface between the first liquid and the second liquid is concave in an exemplary embodiment of the present disclosure.

[0035] FIG5 is a schematic structural diagram of a lens adjustment system provided in an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0037] In this disclosure, unless otherwise specified, "inside" and "outside" refer to the inside and outside of the corresponding component's outline; "far" and "near" refer to the spatial distance of the corresponding component relative to another component. Furthermore, the terms "first," "second," and so on, used in this disclosure, are intended to distinguish one element from another and do not convey sequential or significant meanings. In the following description, unless otherwise indicated, identical numerals in different figures represent identical or similar elements.

[0038] The lens and lens adjustment system in exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings.

[0039] According to a first aspect of the present disclosure, with reference to Figures 1 to 4, the present disclosure provides an optical device, comprising a shell 1 and a light-transmitting structure 3 arranged on the shell 1, the shell 1 and the light-transmitting structure 3 construct a chamber 2 suitable for accommodating a first liquid and a second liquid having different refractive indices and being immiscible with each other, the light-transmitting structure 3 being used to form an optical path for light to pass through together with the first liquid and the second liquid, the chamber 2 comprising a first wall 21 for contacting the first liquid and a second wall 22 for contacting the second liquid, the first wall 21 being configured to provide surface energy for limiting the movement of the first liquid, the second wall 22 being configured to provide surface energy for limiting the movement of the second liquid, and at least one through hole 23 being provided on each of the first wall 21 and the second wall 22, the at least one through hole 23 being used to communicate with a control component 4 so as to adjust the amount of the first liquid and the second liquid through the control component 4 so as to change the curvature radius of the interface between the first liquid and the second liquid. Among them, surface energy is an important property of the interaction between material particles, which refers to the increase in the free enthalpy of the system per unit increase in surface area. In the present disclosure, surface energy can be understood as being able to describe the interaction between liquids (first liquid and second liquid) and solids (first wall 21 and second wall 22), that is, the first wall 21 in the above description is constructed to provide surface energy for restricting the movement of the first liquid and the second wall 22 is constructed to provide surface energy for restricting the movement of the second liquid, which is specifically manifested as the retention phenomenon of the first liquid on the first wall 21 and the second liquid on the second wall 22.

[0040] Through this technical solution, when the optical device is filled with the first liquid and the second liquid to be used as a lens, the amount of the first liquid and the second liquid can be changed by the control component 4 to change the curvature radius of the interface between the first liquid and the second liquid, thereby achieving focal length adjustment, wherein the first wall 21 of the chamber 2 provides surface energy to limit the movement of the first liquid, and the second wall 22 of the chamber 2 provides surface energy to limit the movement of the second liquid, so that when the amount of the first liquid and the second liquid is changed by the control component 4, part of the first liquid close to the first wall 21 and part of the second liquid close to the second wall 22 are not easy to flow, and the remaining liquid of the first liquid away from the first wall 21 and the remaining liquid of the second liquid away from the second wall 22 flow, so that the surface shape of the interface between the first liquid and the second liquid changes to convex, flat or concave, and then the curvature radius changes, so as to reduce energy consumption, improve safety, and enable precise focusing. For liquid lenses based on the electrowetting principle, as the aperture of the liquid lens increases, the applied voltage needs to be significantly increased to meet the zoom requirements. As a result, on the one hand, energy consumption is greatly increased, and on the other hand, there are safety risks such as leakage during the use of the liquid lens. There are even cases where increasing the applied voltage cannot meet the zoom requirements during the use of large-aperture liquid lenses. Therefore, the use of liquid lenses based on the electrowetting principle is limited in the field of large-aperture liquid lenses. The lens provided by the present disclosure can achieve, but is not limited to, zooming of large-aperture liquid lenses.

[0041] At the same time, the optical device provided by the present disclosure does not use an elastic light-transmitting film, thereby avoiding the impact of problems such as uneven deformation or surface roughness of the elastic light-transmitting film on lens performance such as imaging quality and imaging stability.

[0042] The present disclosure herein exemplarily illustrates some embodiments of a chamber 2 for accommodating two liquid media, a first liquid and a second liquid. In some embodiments, as shown in FIG3 , the second liquid is added to the lower portion of the chamber 2 by the control component 4, and the first liquid is reduced from the upper portion of the chamber 2 by the control component 4. The interface between the first liquid and the second liquid is convex to form a positive lens, and light rays sequentially pass through the light-transmitting structure 3, the first liquid, and the second liquid provided on the shell 1, and converge. In other embodiments, as shown in FIG4 , the first liquid is added to the upper portion of the chamber 2 by the control component 4, and the second liquid is reduced from the lower portion of the chamber 2 by the control component 4. The interface between the first liquid and the second liquid is concave to form a negative lens, and light rays sequentially pass through the light-transmitting structure 3, the first liquid, and the second liquid provided on the shell 1, and diverge. It is understandable that the amount of the first liquid and the second liquid inside the chamber 2 can still be adjusted by the control component 4 to change the radius of curvature of the interface between the first liquid and the second liquid, thereby adjusting the focal length.

[0043] The first wall 21 is configured to provide a surface energy for restricting the movement of the first liquid. It can be understood that the material or structure of the first wall 21 can be defined so that the first wall 21 has a property that can provide a surface energy for restricting the movement of the first liquid. Similarly, the second wall 22 is configured to provide a surface energy for restricting the movement of the second liquid. It can be understood that the material or structure of the second wall 22 can be defined so that the second wall 22 has a property that can provide a surface energy for restricting the movement of the second liquid. For example, in some embodiments, referring to Figures 1 to 4, the first wall 21 can be at least partially configured to have a hydrophilic-oleophobic structure. Accordingly, the first liquid can be a hydrophilic medium, such as a salt solution or an alcohol solution, such as an aqueous solution of sodium chloride, potassium chloride, sodium sulfate, or ethylene glycol, propylene glycol, propylene carbonate, etc., to provide a surface energy for restricting the movement of the first liquid through the hydrophilic-oleophobic structure. The second wall 22 can be at least partially configured to have an oleophilic-hydrophobic structure. Accordingly, the second liquid can be an oleophilic medium, such as a transparent oily liquid, such as silicone oil, germanium oil, dimethyl silicone oil, or optical fluid, to provide a surface energy for restricting the movement of the oleophilic medium through the oleophilic-hydrophobic structure. It can be understood that the first wall 21 can be composed entirely of a hydrophilic and oleophobic material, and the second wall 22 can be composed entirely of an oleophilic and hydrophobic material, or the side of the first wall 21 close to the hydrophilic medium is provided with a hydrophilic and oleophobic material, and the side of the second wall 22 close to the oleophilic medium is provided with an oleophilic and hydrophobic material. The hydrophilic and oleophobic material can be a fluoroalkyl acrylic oligomer, modified polypropylene, etc., and the oleophilic and hydrophobic material can be an alkyl vinyl polymer fiber, a long-chain alkyl methacrylate fiber, etc.In this way, when the amount of the first liquid and the second liquid in the chamber 2 is adjusted by the control component 4, for example, the second liquid can be added to the lower part of the chamber 2 through the control component 4, and the first liquid can be reduced from the upper part of the chamber 2 through the control component 4. At this time, the hydrophilic and oleophobic structure on the first wall 21 provides a surface energy that limits the first liquid, i.e., the hydrophilic medium, and the oleophilic and hydrophobic structure on the second wall 22 provides a surface energy that limits the second liquid, i.e., the oleophilic medium. Therefore, part of the first liquid close to the first wall 21 and part of the second liquid close to the second wall 22 are not easy to flow due to surface tension, and the remaining liquid of the first liquid away from the first wall 21 and the remaining liquid of the second liquid away from the second wall 22 flow, and then the boundary between the first liquid and the second liquid is formed. The surface is convex to form a positive lens. Similarly, the first liquid can be added to the upper part of the chamber 2 through the control component 4, and the second liquid can be reduced from the lower part of the chamber 2 through the control component 4. At this time, the hydrophilic and oleophobic structure on the first wall 21 provides a surface energy that limits the first liquid, i.e., the hydrophilic medium, and the oleophilic and hydrophobic structure on the second wall 22 provides a surface energy that limits the second liquid, i.e., the oleophilic medium. Therefore, part of the first liquid close to the first wall 21 and part of the second liquid close to the second wall 22 are not easy to flow due to surface tension, and the remaining liquid of the first liquid away from the first wall 21 and the remaining liquid of the second liquid away from the second wall 22 flow, and then the interface between the first liquid, i.e., the hydrophilic medium and the second liquid, i.e., the oleophilic medium, is concave to form a negative lens.

[0044] It can be understood that in other embodiments, the first liquid can also be an oleophilic medium, then the second liquid can be a hydrophilic medium, accordingly, the first wall 21 is at least partially constructed as an oleophilic hydrophobic structure, the oleophilic hydrophobic structure is used to provide surface energy to limit the movement of the oleophilic medium, the second wall 22 is at least partially constructed as a hydrophilic oleophobic structure, the hydrophilic oleophobic structure is used to provide surface energy to limit the movement of the hydrophilic medium, the first liquid and the second liquid must meet the requirements of different refractive indices and be immiscible with each other, and the change of the position contained in the chamber 2 will not affect the function of the lens, and the present disclosure does not impose any restrictions on this.

[0045] In some embodiments, referring to Figures 1 to 4, the first wall 21 includes a first composite layer 211, the first composite layer 211 includes a first support layer and a hydrophilic-oleophobic structure stacked on the inner side of the first support layer; and / or, the second wall 22 includes a second composite layer 221, the second composite layer 221 includes a second support layer and an oleophilic-hydrophobic structure stacked on the inner side of the second support layer. The stacking arrangement of the first support layer and the hydrophilic-oleophobic structure can be understood as the first support layer and the hydrophilic-oleophobic structure being attached and the first support layer being located on the side of the hydrophilic-oleophobic structure facing away from the chamber 2. Similarly, the stacking arrangement of the second support layer and the oleophilic-hydrophobic structure can be understood as the second support layer and the oleophilic-hydrophobic structure being attached and the second support layer being located on the side of the oleophilic-hydrophobic structure facing away from the chamber 2. Thus, the first wall 21 supports the hydrophilic-oleophobic structure on the inside through the first supporting layer, so as to provide a mounting carrier for the hydrophilic-oleophobic structure, and the hydrophilic-oleophobic structure provides a surface energy that limits the first liquid, i.e., the hydrophilic medium. Similarly, the second wall 22 supports the oleophilic-hydrophobic structure on the inside through the second supporting layer, so as to provide a mounting carrier for the oleophilic-hydrophobic structure, and the oleophilic-hydrophobic structure provides a surface energy that limits the second liquid, i.e., the oleophilic medium. The hydrophilic-oleophobic structure and the first supporting layer, as well as the oleophilic-hydrophobic structure and the second supporting layer, can be fixed by bonding. Specifically, the material of the first supporting layer and the second supporting layer can be plastics such as ABS, PS, PE, etc. to provide structural support. The material of the hydrophilic-oleophobic structure can be fluoroalkyl acrylic oligomers, modified polypropylene, etc., and the material of the oleophilic-hydrophobic structure can be alkyl vinyl polymer fibers, long-chain alkyl methacrylate fibers, etc.

[0046] In some embodiments, referring to Figures 1 to 4, the first wall 21 includes a first plate 212 and a first seal 213, and the second wall 22 includes a second plate 222 and a second seal 223. The first seal 213 and the second seal 223 are docked and located between the first plate 212 and the second plate 222. The first seal 213 and the second seal 223 can be fixed by bonding. A reserved groove for plugging or embedding the first seal 213 can be formed on the first plate 212. Similarly, a reserved groove for plugging or embedding the second seal 223 can be formed on the second plate 222, so that the chamber 2 can be better sealed. The material of the first plate 212 and the second plate 222 can be plastics such as ABS, PS, and PE. The first seal 213 includes a hydrophilic and oleophobic structure, and the second seal 223 includes an oleophilic and hydrophobic structure. Specifically, the first seal 213 and the second seal 223 can be constructed as a central control columnar plate so as to form a space inside for accommodating the first liquid and the second liquid. For example, in some embodiments, the first seal 213 can be the above-mentioned first composite layer 211, that is, the first seal 213 can include a first support layer and a hydrophilic and oleophobic structure stacked on the inner side of the first support layer, and the second seal 223 can be the above-mentioned second composite layer 221, that is, the second seal 223 can include a second support layer and an oleophilic and hydrophobic structure stacked on the inner side of the second support layer. In addition, in other embodiments, the first seal 213 can also be directly used as a hydrophilic and oleophobic structure, that is, the material of the first seal 213 can be, for example, fluoroalkyl acrylic oligomer, modified polypropylene, etc. Similarly, the second seal 223 can also be directly used as an oleophilic and hydrophobic structure, that is, the material of the second seal 223 can be alkyl vinyl polymer fiber, long-chain alkyl methacrylate fiber, etc., and the present disclosure does not impose any restrictions on this.

[0047] Furthermore, the light-transmitting structure 3 can be constructed in any suitable manner. For example, the light-transmitting structure 3 can include a first light-transmitting portion 31 connected to the first plate 212 and a second light-transmitting portion 32 connected to the second plate 222. The first seal 213, the second seal 223, the first plate 212, the second plate 222, the first light-transmitting portion 31, and the second light-transmitting portion 32 together form the chamber 2. In this way, light rays sequentially pass through the first light-transmitting portion 31, the first liquid and the second liquid in the chamber 2, and the second light-transmitting portion 32, and then converge or diverge.

[0048] Optionally, at least one of the first light-transmitting portion 31 and the second light-transmitting portion 32 may be perpendicular to the central axis of the interface between the first liquid and the second liquid, so as to simplify the focusing process of the lens. Of course, the first light-transmitting portion 31 and the second light-transmitting portion 32 may not be perpendicular to the central axis of the interface, and may also be reasonably arranged according to the application requirements of the light path. Among them, the central axis of the interface between the first liquid and the second liquid can be understood as the axis that passes through the center of the interface between the first liquid and the second liquid and is perpendicular to the interface between the first liquid and the second liquid when the interface between the first liquid and the second liquid is in a flat state (no deformation such as convexity or concaveness occurs).

[0049] The first plate 212 is provided with a first light-transmitting hole 2121, and the first light-transmitting portion 31 is configured as a first optical lens 311 covering the first light-transmitting hole 2121. Alternatively, the second plate 222 is provided with a second light-transmitting hole 2221, and the second light-transmitting portion 32 is configured as a second optical lens 321 covering the second light-transmitting hole 2221. The first optical lens 311 and the second optical lens 321 may be made of the same or different materials. Specifically, the first optical lens 311 and the second optical lens 321 may be made of optical materials such as glass or plastic. In this way, light rays converge or diverge after sequentially passing through the first optical lens 311, the first liquid in the chamber 2, the first liquid, and the second optical lens 321. Furthermore, a reserved groove is formed on the first plate 212 for the first optical lens 311 to be inserted into. Similarly, a reserved groove is formed on the second plate 222 for the second optical lens 321 to be inserted into. The first optical lens 311 and the second optical lens 321 may be fixed to the corresponding reserved grooves by bonding.

[0050] It should be noted that the light-transmitting aperture can be adjusted by changing the inner diameters of the first light-transmitting hole 2121 and the second light-transmitting hole 2221. Therefore, in some other possible embodiments not shown in the accompanying drawings, the first plate 212 and the first optical lens 311 as well as the second plate 222 and the second optical lens 321 can be constructed as an integrated modular structure, that is, when the light-transmitting aperture needs to be adjusted, the first plate 212 and the first optical lens 311 as well as the second plate 222 and the second optical lens 321 can be replaced as a whole without removing the first optical lens 311 and the second optical lens 321 from the first plate 212 and the second plate 222 and reinstalling them on the first plate 212 with first light-transmitting holes 2121 of different sizes and the second plate 222 with second light-transmitting holes 2221 of different sizes, and the adjustment process is more convenient. It can be understood that the inner diameter of the first light-transmitting hole 2121 and the second light-transmitting hole 2221 is the aperture of the lens. For example, compared with the prior art, the lens provided by the present disclosure can achieve precise zoom of large-aperture liquid lenses. For example, the radial dimension of the first light-transmitting hole and / or the second light-transmitting hole can be no less than 30 mm, that is, the lens provided by the present disclosure can achieve precise zoom of large-aperture lenses above 30 mm, for example, it can achieve precise zoom of large-aperture lenses such as 50 mm, 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, 350 mm, 400 mm, 450 mm, and 500 mm.

[0051] In some embodiments, the inner diameters of the first seal 213 and the second seal 223 are the same, and the length of at least one of the first seal 213 and the second seal 223 along the central axis of the interface is not less than one-fifth of the inner diameter of the first seal 213 or the second seal 223. In this way, the accommodation space in the chamber 2 can be increased, that is, it can accommodate more first liquid and second liquid, and the interface between the first liquid and the second liquid has a larger deformation space, thereby widening the zoom range of the lens. In addition, ensuring the length of the first seal 213 and the second seal 223 along the central axis of the interface can also increase the contact area between the hydrophilic and oleophobic structure and the hydrophilic medium, and the oleophilic and hydrophobic structure and the oleophilic medium, so as to enhance the surface energy of the hydrophilic and oleophobic structure to restrict the flow of the hydrophilic medium, and the surface energy of the oleophilic and hydrophobic structure to restrict the flow of the oleophilic medium.

[0052] In some embodiments, as shown in Figures 1 and 2, the first plate 212 and the second plate 222 are connected by a connecting assembly 5, so that the first seal 213 and the second seal 223 are clamped between the first plate 212 and the second plate 222. The connecting assembly 5 can be constructed in any suitable manner. For example, the connecting assembly 5 can be constructed as a plurality of fastening bolts and fastening nuts. The fastening bolts can pass through the first plate 212 and the second plate 222, and the fastening nuts can be threadedly locked with the corresponding fastening bolts to clamp and fix the first plate 212 and the second plate 222. In some other possible embodiments not shown in the drawings, the connecting assembly 5 can also include a plurality of support rods arranged between the first plate 212 and the second plate 222. The plurality of support rods can be connected between the first plate 212 and the second plate 222 by bonding or clamping. This is not limited by the present disclosure.

[0053] According to a second aspect of the present disclosure, a lens is provided, comprising the above-mentioned optical device and a first liquid and a second liquid filled in a chamber 2 of the optical device. The lens has all the advantages of the above-mentioned optical device.

[0054] The first liquid can match the structure of the first wall 21. For example, the first wall 21 can be at least partially constructed as a hydrophilic and oleophobic structure. Accordingly, the first liquid can be a hydrophilic medium, such as a salt solution or an alcohol solution, such as an aqueous solution of sodium chloride, potassium chloride, sodium sulfate, etc., or ethylene glycol, propylene glycol, propylene carbonate, etc., so as to provide surface energy that limits the movement of the first liquid through the hydrophilic and oleophobic structure.

[0055] Similarly, the second liquid can match the structure of the second wall 22. For example, the second wall 22 can be at least partially constructed as an oleophilic and hydrophobic structure. Accordingly, the second liquid can be an oleophilic medium, such as a transparent oily liquid, such as silicone oil, germanium oil, dimethyl silicone oil or optical fluid, etc., so as to provide surface energy for limiting the movement of the oleophilic medium through the oleophilic and hydrophobic structure.

[0056] In some embodiments, the densities of the first liquid and the second liquid can be the same. In this way, when the lens is not placed vertically, the first liquid and the second liquid in the chamber 2 will not be affected by gravity and will not flow significantly, so that the surface shape of the interface between the first liquid and the second liquid is relatively stable, and thus the optical axis is relatively stable, and the imaging effect and imaging stability are better. Among them, the "surface shape" used in this disclosure refers to the convex, concave and flat shape of the interface between the first liquid and the second liquid after the amount of the first liquid and the second liquid in the chamber 2 is adjusted by the control component 4.

[0057] According to a third aspect of the present disclosure, a lens adjustment system is provided, comprising a lens and a control assembly 4 .

[0058] As shown in Figure 4, the control component 4 may include a first liquid quantity control structure 41 and a second liquid quantity control structure 42. The first liquid quantity control structure 41 includes a first liquid inlet pipe 411 connected to the through hole 23 on the first wall 21 and a first pumping device 412 arranged on the first liquid inlet pipe 411; the second liquid quantity control structure 42 includes a second liquid inlet pipe 421 connected to the through hole 23 on the second wall 22 and a second pumping device 422 arranged on the second liquid inlet pipe 421. In this way, the first liquid can be pumped into or out of the chamber 2 through the first pumping device 412 and the first liquid inlet pipe 411, and the second liquid can be pumped into or out of the chamber 2 through the second pumping device 422 and the second liquid inlet pipe 421. For example, when the interface between the first liquid and the second liquid is required to be convex to form a positive lens, the second pumping device 422 is turned on and the second liquid is pumped into the chamber 2 through the second liquid inlet pipe 421. At this time, the first pumping device 412 is turned on and the first liquid is pumped out of the chamber 2 through the first liquid inlet pipe 411. As a result, the interface between the first liquid and the second liquid is convex to form a positive lens, wherein the first liquid inlet pipe 411 and the second liquid inlet pipe 421 can be, for example, rubber hoses, and the first pumping device 412 and the second pumping device 422 can be, for example, mechanical peristaltic pumps.

[0059] Alternatively, in another embodiment not shown, the control assembly 4 includes a pumping device, which is connected to the through-hole 23 in the first wall 21 via a first liquid pipeline, and is connected to the through-hole 23 in the second wall 22 via a second liquid pipeline. The pumping device can be, for example, a syringe pump, which includes a first syringe and a second syringe. The first syringe can be connected to the through-hole 23 in the first wall 21 via the first liquid pipeline to pump the first liquid in and out, and the second syringe can be connected to the through-hole 23 in the second wall 22 via the second liquid pipeline to pump the second liquid in and out.

[0060] Taking the control component 4 as an example, which may include a first liquid quantity control structure 41 and a second liquid quantity control structure 42, as shown in FIG4 , the control component 4 also includes a first liquid outlet pipe 43, a second liquid outlet pipe 44 and a liquid storage structure 45, wherein the first liquid outlet pipe 43 is connected to another through hole 23 on the first wall 21, and the second liquid outlet pipe 44 is connected to another through hole 23 on the second wall 22; wherein the first liquid outlet pipe 43 is connected to the liquid storage structure 45, and a stop valve 46 is provided on the first liquid inlet pipe 411 and the second liquid outlet pipe 44. In this way, during the filling process of the first liquid and the second liquid, the stop valve 46 on the second liquid outlet pipe 44 is first opened, and at this time, the stop valve 46 on the first liquid inlet pipe 411 is in a closed state, and the second pumping device 422 is opened and The second liquid is pumped into the chamber 2 through the second liquid inlet pipe 421. When the liquid level of the second liquid is consistent with the length of the second sealing component 223 along the central axis of the interface, the second pumping device 422 and the stop valve 46 on the second liquid outlet pipe 44 are closed. Then, the stop valve 46 on the first liquid inlet pipe 411 is opened, the first pumping device 412 is opened, and the first liquid inlet pipe 411 is pumped into the chamber 2. When the liquid level of the first liquid is consistent with the length of the first sealing component 213 along the central axis of the interface and a certain amount of the first liquid is filled in the liquid storage structure 45, the first pumping device 412 and the stop valve 46 on the first liquid inlet pipe 411 are closed to complete the filling process of the first liquid and the second liquid.

[0061] It is understandable that the second liquid outlet pipe 44 can also be connected to the liquid storage structure 45, and a stop valve 46 can be provided on the second liquid inlet pipe 421 and the first liquid outlet pipe 43. In this way, the filling process of the first liquid and the second liquid is relatively similar to the above situation, and this disclosure will not go into details.

[0062] The present disclosure exemplarily illustrates the installation and use process of an optical device, a lens, and a lens adjustment system.

[0063] First, the first plate 212, the first seal 213, the second seal 223 and the second plate 222 are bonded in sequence, and then the fastening bolts are passed through the first plate 212 and the second plate 222 in sequence and locked by fastening nuts to complete the installation of the optical device, and then the first pumping device 412 and the first liquid inlet pipe 411, the second pumping device 422 and the second liquid inlet pipe 421, the first liquid outlet pipe 43 and the second liquid outlet pipe 44 are connected to the chamber 2 through the through hole 23.

[0064] Then the liquid is filled. First, the stop valve 46 on the second liquid outlet pipe 44 is opened. At this time, the stop valve 46 on the first liquid inlet pipe 411 is in a closed state. The second pumping device 422 is opened and the second liquid is pumped into the chamber 2 through the second liquid inlet pipe 421. When the liquid level of the second liquid is consistent with the length of the second sealing member 223 along the central axis of the interface, the second pumping device 422 is closed and the stop valve 46 on the second liquid outlet pipe 44. Then, the stop valve 46 on the first liquid inlet pipe 411 is opened. The first pumping device 412 is opened and the first liquid inlet pipe 411 is pumped into the chamber 2. When the liquid level of the first liquid is consistent with the length of the first sealing member 213 along the central axis of the interface and a certain amount of the first liquid is filled in the liquid storage structure 45, the first pumping device 412 and the stop valve 46 on the first liquid inlet pipe 411 are closed to complete the filling process of the first liquid and the second liquid.

[0065] When using the lens, when the interface between the first liquid and the second liquid needs to be convex to form a positive lens, the second pumping device 422 is turned on and the second liquid is pumped into the chamber 2 through the second liquid inlet pipe 421, and the first liquid away from the hydrophilic and oleophobic structure and the second liquid away from the oleophilic and hydrophobic structure flow. At this time, the first liquid flows into the liquid storage structure 45, and then the interface between the first liquid and the second liquid is convex to form a positive lens. Pumping continues until the focal length adjustment requirements are met.

[0066] When the interface between the first liquid and the second liquid needs to be concave to form a negative lens, the second pumping device 422 is turned on and the second liquid is pumped out from the chamber 2 through the second liquid inlet pipe 421, and the first liquid away from the hydrophilic and oleophobic structure and the second liquid away from the oleophilic and hydrophobic structure flow. At this time, the first liquid flows into the chamber 2 from the liquid storage structure 45, and then the interface between the first liquid and the second liquid is concave to form a negative lens. Pumping continues until the focal length adjustment requirements are met.

[0067] In addition, the present disclosure exemplarily shows the specific structural parameters and focal length adjustment ranges of some lenses.

[0068] Example 1: The diameter of the first light-transmitting hole 2121 and the second light-transmitting hole 2221 are both 50 mm. The length of the first seal 213 and the second seal 223 along the direction parallel to the central axis of the interface between the first liquid and the second liquid is 50 mm. The first liquid is colorless and transparent silicone oil with a refractive index of 1.65 and an Abbe number of 62.8. Accordingly, the material of the first seal 213 is alkyl vinyl polymer fiber. The second liquid is a NaCl aqueous solution with a refractive index of 1.33 and an Abbe number of 55.8. Accordingly, the material of the second seal 223 is a fluoroalkyl acrylic oligomer. Through calculation, the shortest negative focal length of the lens is -75.5 mm, and the shortest positive focal length is 75.8 mm.

[0069] Example 2: The diameters of the first light-transmitting hole 2121 and the second light-transmitting hole 2221 are both 100 mm. The lengths of the first seal 213 and the second seal 223 along the direction parallel to the central axis of the interface between the first liquid and the second liquid are 100 mm. The first liquid is colorless and transparent silicone oil with a refractive index of 1.65 and an Abbe number of 62.8. Accordingly, the material of the first seal 213 is alkyl vinyl polymer fiber. The second liquid is a NaCl aqueous solution with a refractive index of 1.33 and an Abbe number of 55.8. Accordingly, the material of the second seal 223 is a fluoroalkyl acrylic oligomer. Calculation shows that the shortest negative focal length of the lens is -151.2 mm, and the shortest positive focal length is 151.5 mm.

[0070] Example 3: The diameters of the first light-transmitting hole 2121 and the second light-transmitting hole 2221 are both 200 mm. The lengths of the first seal 213 and the second seal 223 along the direction parallel to the central axis of the interface between the first liquid and the second liquid are 200 mm. The first liquid is colorless and transparent silicone oil with a refractive index of 1.65 and an Abbe number of 62.8. Accordingly, the material of the first seal 213 is alkyl vinyl polymer fiber. The second liquid is a NaCl aqueous solution with a refractive index of 1.33 and an Abbe number of 55.8. Accordingly, the material of the second seal 223 is a fluoroalkyl acrylic oligomer. Calculation shows that the shortest negative focal length of the lens is -302.5 mm, and the shortest positive focal length is 302.8 mm.

[0071] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0072] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0073] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An optical device, characterized in that: include: Housing (1); and A light-transmitting structure (3) is arranged on the shell (1); the shell (1) and the light-transmitting structure (3) form a chamber (2) suitable for accommodating a first liquid and a second liquid having different refractive indices and being immiscible with each other; the light-transmitting structure (3) is used to form, together with the first liquid and the second liquid, a light path for light to pass through; the chamber (2) comprises a first wall (21) for contacting the first liquid and a second wall (22) for contacting the second liquid; the first wall (21) is configured to provide surface energy for limiting the movement of the first liquid; the second wall (22) is configured to provide surface energy for limiting the movement of the second liquid; and the first wall (21) and the second wall (22) are both provided with at least one through hole (23); the at least one through hole (23) is used to communicate with a control component (4) so ​​as to adjust the amount of the first liquid and the second liquid through the control component (4) so ​​as to change the radius of curvature of the interface between the first liquid and the second liquid.

2. The optical device according to claim 1, characterized in that At least part of the first wall (21) is configured as a hydrophilic and oleophobic structure, and at least part of the second wall (22) is configured as an oleophilic and hydrophobic structure.

3. The optical device according to claim 1 or 2, characterized in that: The first wall (21) comprises a first composite layer (211), wherein the first composite layer (211) comprises a first supporting layer and a hydrophilic and oleophobic structure stacked and arranged inside the first supporting layer; and / or, The second wall (22) comprises a second composite layer (221), wherein the second composite layer (221) comprises a second supporting layer and an oleophilic and hydrophobic structure stacked and arranged inside the second supporting layer.

4. The optical device according to claim 2 or 3, characterized in that: The first wall (21) comprises a first plate body (212) and a first sealing member (213); the second wall (22) comprises a second plate body (222) and a second sealing member (223); the first sealing member (213) and the second sealing member (223) are connected to each other and are located between the first plate body (212) and the second plate body (222); the light-transmitting structure (3) comprises a first light-transmitting portion (31) connected to the first plate body (212) and a second light-transmitting portion (32) connected to the second plate body (222); the first sealing member (213), the second sealing member (223), the first plate body (212), the second plate body (222), the first light-transmitting portion (31) and the second light-transmitting portion (32) together enclose the chamber (2); the first sealing member (213) comprises the hydrophilic-oleophobic structure; and the second sealing member (223) comprises the oleophilic-hydrophobic structure.

5. The optical device according to claim 4, characterized in that At least one of the first light-transmitting portion (31) and the second light-transmitting portion (32) is perpendicular to the central axis of the interface.

6. The optical device according to claim 4 or 5, characterized in that A first light-transmitting hole (2121) is provided on the first plate body (212), and the first light-transmitting portion (31) is configured as a first optical lens (311) covering the first light-transmitting hole (2121), and / or a second light-transmitting hole (2221) is provided on the second plate body (222), and the second light-transmitting portion (32) is configured as a second optical lens (321) covering the second light-transmitting hole (2221).

7. The optical device according to claim 6, characterized in that The radial dimension of the first light-transmitting hole (2121) and / or the second light-transmitting hole (2221) is not less than 30 mm.

8. The optical device according to claim 6 or 7, characterized in that: The inner diameters of the first seal (213) and the second seal (223) are the same, and the length of at least one of the first seal (213) and the second seal (223) along the central axis of the interface is not less than one fifth of the inner diameter of the first seal (213) or the second seal (223).

9. The optical device according to any one of claims 4 to 8, characterized in that: The first plate body (212) and the second plate body (222) are connected via a connecting assembly (5) so that the first sealing member (213) and the second sealing member (223) are clamped between the first plate body (212) and the second plate body (222).

10. A lens, characterized in that: The optical device comprises the optical device according to any one of claims 1 to 9, and a first liquid and a second liquid filled in the chamber (2).

11. The lens according to claim 10, characterized in that: The first liquid is a hydrophilic medium, and the second liquid is a lipophilic medium.

12. The lens according to claim 10 or 11, characterized in that: The first liquid and the second liquid have the same density.

13. A lens adjustment system, characterized in that: It comprises the lens as described in any one of claims 10 to 12 and the control component (4).

14. The lens adjustment system according to claim 13, characterized in that: The control assembly (4) comprises a first liquid quantity control structure (41) and a second liquid quantity control structure (42); the first liquid quantity control structure (41) comprises a first liquid inlet pipe (411) connected to a through hole (23) on the first wall (21) and a first pumping device (412) arranged on the first liquid inlet pipe (411); the second liquid quantity control structure (42) comprises a second liquid inlet pipe (421) connected to the through hole (23) on the second wall (22) and a second pumping device (422) arranged on the second liquid inlet pipe (421).

15. The lens adjustment system according to claim 14, characterized in that: The control assembly (4) further comprises a first liquid outlet pipe (43), a second liquid outlet pipe (44) and a liquid storage structure (45), wherein the first liquid outlet pipe (43) is connected to another through hole (23) on the first wall (21), and the second liquid outlet pipe (44) is connected to another through hole (23) on the second wall (22); Wherein, the first liquid outlet pipe (43) is connected to the liquid storage structure (45), and the first liquid inlet pipe (411) and the second liquid outlet pipe (44) are both provided with a stop valve (46); or, The second liquid outlet pipe (44) is connected to the liquid storage structure (45), and both the second liquid inlet pipe (421) and the first liquid outlet pipe (43) are provided with stop valves (46).

16. The lens adjustment system according to any one of claims 13 to 15, characterized in that: The control assembly (4) comprises a pumping device, which is connected to the through hole (23) on the first wall (21) through a first liquid pipeline, and the pumping device is connected to the through hole (23) on the second wall (22) through a second liquid pipeline.

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