Optical device, lens, and lens adjusting system

Abstract

An optical device, a lens, and a lens adjusting system. The optical device comprises a deformable light-transmitting film, a housing, and a light-transmitting structure arranged on the housing. The deformable light-transmitting film, the housing, and the light-transmitting structure form at least two cavities suitable for containing liquids, and the deformable light-transmitting film is arranged between two adjacent cavities. The light-transmitting structure and the deformable light-transmitting film jointly form a light path for light to pass through. The two adjacent cavities are suitable for containing liquids having different refractive indexes, each cavity is provided with at least one through hole, and the through holes are suitable for being communicated with a control structure, so as to change the amount of the liquids in the cavities.

Description

Optical device, lens and lens adjustment system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on November 30, 2023, with application number 202323273897.9 and titled “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 optical lenses, and in particular, to an optical device, a lens, and a lens adjustment system. Background Art

[0004] In related technologies, liquid lenses usually place the liquid medium in a liquid storage tank and encapsulate it with an elastic membrane. During use, the liquid lens may need to be moved or flipped according to usage requirements. At this time, the liquid medium flows under the influence of gravity, causing local deformation of the elastic membrane, resulting in unstable optical axis of the liquid lens, affecting imaging quality and imaging stability.

[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 improve the stability of the optical axis during use and enable 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] Deformable light-transmitting film;

[0009] a housing; and

[0010] A light-transmitting structure is arranged on the shell, the deformable light-transmitting film, the shell and the light-transmitting structure construct at least two chambers suitable for accommodating liquid, the deformable light-transmitting film is arranged between two adjacent chambers, the light-transmitting structure and the deformable light-transmitting film together form a light path for light to pass through, the two adjacent chambers are suitable for accommodating liquids with different refractive indices, each of the chambers is provided with at least one through hole, and the through hole is suitable for communicating with a control structure to change the amount of liquid in the chamber.

[0011] Optionally, the at least two chambers are arranged sequentially along a first direction, and the light-transmitting structure includes a first light-transmitting portion located at a first end of the shell along the first direction and a second light-transmitting portion located at a second end opposite to the first end, the first direction is perpendicular to the first light-transmitting portion or the second light-transmitting portion, and the central axis of the deformable light-transmitting film is parallel to the first direction.

[0012] Optionally, the shell includes a first plate, a second plate and a third plate located between the first plate and the second plate, a first seal is provided between the first plate and the third plate, a second seal is provided between the second plate and the third plate, the first plate, the third plate and the first seal, and the second plate, the third plate and the second seal each form a chamber, the first light-transmitting portion is provided on the first plate, the second light-transmitting portion is provided on the second plate, the deformable light-transmitting film is provided on the third plate, and at least one through hole is provided on the first seal and the second seal.

[0013] 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.

[0014] Optionally, a radial dimension of the first light-transmitting hole and / or the second light-transmitting hole is not less than 30 mm.

[0015] Optionally, a length of at least one of the first sealing member and the second sealing member along the first direction is not less than one fifth of a diameter of the deformable light-transmitting film.

[0016] Optionally, the first plate body and the second plate body are connected via a connecting assembly, so that the third plate body, the first sealing member, and the second sealing member can be clamped between the first plate body and the second plate body.

[0017] Optionally, the connection assembly includes a plurality of clamping members arranged at circumferential intervals around the first plate body or the second plate body, the clamping members are respectively connected to the first plate body and the second plate body, and the clamping members can optionally pass through the third plate body.

[0018] Optionally, the through hole is opened on the shell.

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

[0020] Optionally, the density of the liquid in each chamber is the same.

[0021] According to a third aspect of the present disclosure, a lens adjustment system is provided, which includes the above-mentioned lens and the control structure.

[0022] Optionally, the control structure includes a liquid quantity control component and a pressure detection component, both of which are connected to each of the chambers. The liquid quantity control component is used to adjust the amount of liquid in each of the chambers to adjust the curvature radius of the deformable transparent film. The pressure detection component is used to detect the pressure in each of the chambers so that the liquid quantity control component can adjust the amount of liquid in each of the chambers.

[0023] Optionally, the liquid quantity control component includes a liquid circulation pipeline and a pumping device, each of the chambers is connected to the liquid circulation pipeline, each of the liquid circulation pipelines is connected to the pumping device, or each of the liquid circulation pipelines is connected to the same pumping device.

[0024] Optionally, each of the chambers is connected to a discharge pipeline, the pressure detection assembly includes a plurality of pressure detection devices, and the pressure detection devices are provided on the discharge pipeline or the liquid circulation pipeline.

[0025] Optionally, a discharge valve is provided on the discharge pipeline.

[0026] Through the above technical solution, liquid can be arranged on both sides of the deformable light-transmitting film, so that the two liquids can restrict and support each other, so as to reduce the degree of local deformation of the elastic film caused by the influence of gravity as in the related art, and improve the stability of the optical axis. As a result, the imaging quality and imaging stability are improved, and the user experience is improved. In addition, the lens can change the amount of liquid on both sides of the deformable light-transmitting film through the control structure to deform the deformable light-transmitting film, thereby changing the curvature radius of the deformable light-transmitting film to achieve focal length adjustment.

[0027] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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:

[0029] FIG1 is a schematic diagram of the overall structure of an optical device provided in an exemplary embodiment of the present disclosure.

[0030] FIG. 2 is a schematic diagram of an exploded structure of an optical device provided in an exemplary embodiment of the present disclosure.

[0031] FIG3 is a schematic diagram of a convex structure of a deformable light-transmitting film provided in an exemplary embodiment of the present disclosure.

[0032] FIG4 is a schematic diagram of a concave structure of a deformable light-transmitting film provided in an exemplary embodiment of the present disclosure.

[0033] FIG5 is a schematic structural diagram of a lens adjustment system provided in an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] 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.

[0035] In this disclosure, for ease of description, a first direction is defined for optical devices, where "X" represents the first direction. 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 meaning. In the following description, when referring to the accompanying drawings, identical numbers in different drawings represent identical or similar elements, unless otherwise indicated.

[0036] The optical device, lens, and lens adjustment system in exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings.

[0037] According to a first aspect of the present disclosure, referring to Figures 1 to 4, the present disclosure provides an optical device, including a deformable light-transmitting film 1, a shell 2, and a light-transmitting structure 3 arranged on the shell 2. The deformable light-transmitting film 1, the shell 2, and the light-transmitting structure 3 construct at least two chambers 21 suitable for accommodating liquids. The deformable light-transmitting film 1 is arranged between two adjacent chambers 21. The light-transmitting structure 3 and the deformable light-transmitting film 1 jointly form a light path for light to pass through. The two adjacent chambers 21 are suitable for accommodating liquids with different refractive indices. Each chamber 21 is provided with at least one through hole 22, which is suitable for communicating with the control structure 4 to change the amount of liquid in the chamber 21.

[0038] Through this technical solution, liquid can be arranged on both sides of the deformable transparent film 1, so that the two liquids can restrict and support each other, so as to reduce the degree of local deformation of the elastic film caused by gravity as in the related art, and improve the stability of the optical axis. As a result, the imaging quality and imaging stability are improved, and the user experience is improved. In addition, the optical device can change the amount of liquid on both sides of the deformable transparent film 1 by controlling the structure 4 to deform the deformable transparent film 1, thereby changing the curvature radius of the deformable transparent film 1 to achieve focal length adjustment. The deformable transparent film 1 has a certain elasticity and light transmittance, and can be, for example, PDMS, PE film, etc. The two adjacent chambers 21 are suitable for filling with liquids, one of which can be a transparent oily liquid, such as silicone oil, germanium oil, dimethyl silicone oil or optical fluid, and the other liquid can be 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. Specifically, the optical device includes chambers 21 for containing liquid. This allows light to pass through the light-transmitting structure 3 provided on the housing 2, the liquid contained in each chamber 21, and the light path formed by the deformable light-transmitting film 1, and then converge or diverge. Furthermore, each chamber 21 is provided with at least one through-hole 22, which allows the amount of liquid within the chamber 21 to be adjusted via a control structure 4. Because both sides of the deformable light-transmitting film 1 can be filled with liquid, the deformable light-transmitting film 1 can deform evenly during adjustment, thereby changing the radius of curvature of the deformable light-transmitting film 1, thereby adjusting the focal length and enabling precise focusing.

[0039] In which, the present disclosure exemplarily sets the number of chambers 21 to be two. When the optical device is filled with liquid to be used as a liquid lens, as shown in FIG3 , after adding liquid to the lower chamber 21 through the control structure 4, and reducing liquid from the upper chamber 21 through the control structure 4, the deformable light-transmitting film 1 is deformed into a convex shape to form a positive lens, and light rays pass through the upper light-transmitting structure 3, the liquid in the upper chamber 21, the deformable light-transmitting film 1, the liquid in the lower chamber 21, and the lower light-transmitting structure 3 from top to bottom and converge. In other embodiments, as shown in FIG4 , after adding liquid to the lower chamber 21 through the control structure 4, the deformable light-transmitting film 1 is deformed into a convex shape to form a positive lens. After the structure 4 adds liquid to the upper chamber 21 and the liquid is reduced from the lower chamber 21 by controlling the structure 4, the deformable light-transmitting film 1 is concavely deformed to form a negative lens, and the light passes through the upper light-transmitting structure 3, the liquid in the upper chamber 21, the deformable light-transmitting film 1, the liquid in the lower chamber 21 and the lower light-transmitting structure 3 from top to bottom and then diverges. It can be understood that the amount of liquid in each chamber 21 can still be adjusted by controlling the structure 4 to make the deformable light-transmitting film 1 further deformed, and then the curvature radius of the deformable light-transmitting film 1 changes to achieve focal length adjustment.

[0040] In addition, in some other possible embodiments not shown in the accompanying drawings, specifically, the number of chambers 21 can be set to multiple, and a deformable light-transmitting film 1 is arranged between two adjacent chambers 21. The amount of liquid in each chamber 21 is adjusted by the control structure 4 to make the deformable light-transmitting film 1 deform upwardly convex or downwardly concave, so that the light converges or diverges accordingly after passing through the lens. At the same time, the amount of liquid in each chamber 21 can be adjusted by the control structure 4 to make the deformable light-transmitting film 1 further deformed, and then the curvature radius of the deformable light-transmitting film 1 changes, thereby realizing a wider range of adjustment of the focal length and improving the applicability of the lens. The present disclosure does not limit this.

[0041] In some embodiments, as shown in Figures 1 and 2, two chambers 21 are arranged sequentially along a first direction, and the light-transmitting structure 3 can be configured in any suitable manner to cooperate with the chambers 21 and the deformable light-transmitting membrane 1. For example, the light-transmitting structure 3 can include a first light-transmitting portion 31 located at a first end of the housing 2 along the first direction, and a second light-transmitting portion 32 located at a second end opposite the first end. In this way, light sequentially passes through the first light-transmitting portion 31, the liquid in the upper chamber 21, the deformable light-transmitting membrane 1, the liquid in the lower chamber 21, and the second light-transmitting portion 32 along the first direction, and then converges or diverges.

[0042] Among them, the first light-transmitting portion 31 and the second light-transmitting portion 32 can have different construction methods. For example, the central axis of the deformable light-transmitting film 1 can be parallel to the first direction. In this case, the first light-transmitting portion 31 and the second light-transmitting portion 32 can be selectively constructed to be perpendicular to or not perpendicular to the first direction. Alternatively, the central axis of the deformable light-transmitting film 1 can also be not parallel to the first direction. In this case, the first light-transmitting portion 31 and the second light-transmitting portion 32 can also be perpendicular to or not perpendicular to the first direction. The central axis of the deformable light-transmitting film 1 here can be understood as the axis that passes through the center of the deformable light-transmitting film 1 and is perpendicular to the deformable light-transmitting film 1 when the deformable light-transmitting film 1 is in a flat state (when no deformation such as convexity or concave occurs). Therefore, the first light-transmitting portion 31 and the second light-transmitting portion 32 cooperate with the deformable light-transmitting film 1 through different construction methods to adjust the light path of the light, but the present disclosure is not limited to this.

[0043] The through hole 22 can be optionally provided on the shell 2. For example, in some embodiments, as shown in Figures 1 to 4, the shell 2 includes a first plate 23, a second plate 24 and a third plate 25 located between the first plate 23 and the second plate 24. A first seal 26 is provided between the first plate 23 and the third plate 25, and a second seal 27 is provided between the second plate 24 and the third plate 25. A chamber 21 is formed between the first plate 23, the third plate 25 and the first seal 26, and between the second plate 24, the third plate 25 and the second seal 27. The first light-transmitting portion 31 is provided on the first plate 23, the second light-transmitting portion 32 is provided on the second plate 24, the deformable light-transmitting film 1 is provided on the third plate 25, and at least one through hole 22 is provided on the first seal 26 and the second seal 27.

[0044] The number of the third plates 25 may be one or more. For example, when there is one third plate 25, the optical device includes two chambers 21. When there are multiple third plates 25, a third sealing member (not shown) may be provided between two adjacent third plates 25. The third sealing member and the two adjacent third plates 25 may enclose a chamber 21. For example, when there are two third plates 25, the optical device may include three chambers 21, and when there are three third plates 25, the optical device may include four chambers 21. This is not specifically limited in the present disclosure.

[0045] Specifically, the first seal 26 and the second seal 27 can be constructed as a hollow cylindrical plate body so as to form a space inside for accommodating liquid, wherein the material of the first plate body 23, the second plate body 24, the third plate body 25, the first seal 26, and the second seal 27 can be, for example, ABS, PS, PE, etc. At the same time, a reserved groove for adjacent seals to be plugged or embedded can be formed on the plate body, so that the seal can cooperate with the plate body to achieve better sealing of the chamber 21.

[0046] In some embodiments, as shown in Figures 1 and 2, a first light-transmitting hole 231 is provided on the first plate body 23, and the first light-transmitting portion 31 is configured as a first optical lens 311 covering the first light-transmitting hole 231, and / or a second light-transmitting hole 241 is provided on the second plate body 24, and the second light-transmitting portion 32 is configured as a second optical lens 321 covering the second light-transmitting hole 241, wherein the first optical lens 311 and the second optical lens 321 may have the same or different materials, specifically, the materials of the first optical lens 311 and the second optical lens 321 may be optical materials such as glass, plastic, etc., so that the light converges or diverges after passing through the first optical lens 311, the liquid in the upper chamber 21, the deformable light-transmitting film 1, the liquid in the lower chamber 21 and the second optical lens 321 in the first direction. In addition, a reserved groove for the first optical lens 311 to be embedded is formed on the first plate body 23. Similarly, a reserved groove for the second optical lens 321 to be embedded is formed on the second plate body 24. The first optical lens 311 and the second optical lens 321 can be fixed in the corresponding reserved grooves by bonding.

[0047] It should be noted that the light-transmitting aperture can be adjusted by changing the inner diameter of the first light-transmitting hole 231 and the second light-transmitting hole 241. Therefore, in some other possible embodiments not shown in the accompanying drawings, the first plate 23 and the first optical lens 311 and the second plate 24 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 23 and the first optical lens 311 and the second plate 24 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 23 and the second plate 24 and reinstalling them on the first plate 23 with first light-transmitting holes 231 of different sizes and the second plate 24 with second light-transmitting holes 241 of different sizes. It can be understood that the inner diameter of the first light-transmitting hole 231 and the second light-transmitting hole 241 can be the aperture of the optical device or the lens including the optical device. For example, compared with the related art, the lens provided by the present disclosure can achieve precise zooming of large-aperture lenses. For example, the radial dimension of the first light-transmitting hole 231 and / or the second light-transmitting hole 241 can be no less than 30 mm, that is, the lens provided by the present disclosure can achieve precise zooming of large-aperture lenses above 30 mm, for example, it can achieve precise zooming of lenses with apertures of 50 mm, 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, 350 mm, 400 mm, 450 mm, 500 mm, etc.

[0048] In some embodiments, the length of at least one of the first seal 26 and the second seal 27 along the first direction is not less than one-fifth of the diameter of the deformable light-transmitting film 1. In this way, by ensuring the length of the first seal 26 and the second seal 27 along the first direction, the deformable light-transmitting film 1 can have a larger deformation space in the chamber 21, thereby widening the zoom range of the lens.

[0049] In some embodiments, as shown in Figures 1 and 2, the first plate 23 and the second plate 24 are connected by a connecting assembly 5, so that the third plate 25, the first seal 26, and the second seal 27 can be clamped between the first plate 23 and the second plate 24. It is understood that the connecting assembly 5 can connect the first plate 23 and the second plate 24 to clamp and fix the third plate 25, the first seal 26, the second seal 27, and the third seal (if any) therebetween.

[0050] In some embodiments, as shown in Figures 1 and 2, the connection assembly 5 includes a plurality of clamping members 51 spaced circumferentially around the first plate 23 or the second plate 24. The clamping members 51 are connected to the first plate 23 and the second plate 24, respectively, and the clamping members 51 optionally extend through the third plate 25. Specifically, the clamping members 51 can be configured in any suitable manner. For example, the clamping members 51 can be configured as fastening bolts and fastening nuts. The fastening bolts can pass through the first and second plates 23 and 24, and the fastening nuts can then threadably lock the corresponding fastening bolts. It is understood that the fastening bolts can pass through the third plate 25 to restrict movement of the third plate 25. Alternatively, the fastening bolts can be positioned outside the third plate 25. Accordingly, a reserved groove for embedding adjacent sealing members can be formed on the third plate 25 to restrict movement of the third plate 25.

[0051] In some other possible embodiments not shown in the accompanying drawings, the clamping member 51 may also include a support rod arranged between the first plate body 23 and the second plate body 24. The multiple support rods may be connected to the first plate body 23 and the second plate body 24 by bonding or clamping. Similarly, the support rods may or may not pass through the third plate body 25, and this disclosure does not impose any restrictions on this.

[0052] According to a second aspect of the present disclosure, a lens is provided, comprising the above-mentioned optical device and a liquid filled in the chamber 21 of the optical device. The lens has all the beneficial effects of the above-mentioned optical device, for example, it can improve the stability of the optical axis during use, and can accurately focus, and can be suitable for large-aperture lenses. The present disclosure will not be repeated here.

[0053] In some embodiments, the density of the liquid in each chamber 21 is the same. Thus, when the lens is not positioned vertically, the liquid in the chamber 21 is not affected by gravity and does not flow significantly. This prevents the deformable light-transmitting film 1 from being squeezed and affecting its surface shape. The optical axis is relatively stable, resulting in better imaging quality and stability. As used herein, "surface shape" refers to the convex, concave, or flush shape of the deformable light-transmitting film 1 after the amount of liquid in each chamber 21 is adjusted by the control structure 4.

[0054] According to a third aspect of the present disclosure, a lens adjustment system is provided, as shown in FIG5 , comprising a lens and a control structure 4. In some embodiments, the control structure 4 comprises a liquid quantity control component 41 and a pressure detection component 42 connected to each chamber 21. The liquid quantity control component 41 is used to adjust the amount of liquid in each chamber 21 to adjust the curvature radius of the deformable light-transmitting film 1. The pressure detection component 42 is used to detect the pressure in each chamber 21 so as to enable the liquid quantity control component 41 to adjust the amount of liquid in each chamber 21. In this way, the liquid amount control component 41 is used to add or reduce the amount of liquid in each chamber 21, thereby deforming the deformable light-transmitting film 1. At the same time, when the liquid amount control component 41 adds or reduces the amount of liquid in the chamber 21, the pressure detection component 42 is used to detect the pressure in each chamber 21. Specifically, the lens can be calibrated before use. For example, first, a certain amount of corresponding liquid is added or reduced in each chamber 21 by the liquid amount control component 41, and the pressure value in each chamber 21 is recorded by the pressure detection component 42. Based on this, the pressure difference between different chambers 21, for example, between two adjacent chambers 21, is obtained, and the measured focal length value is recorded. Then, the amount of liquid added or reduced is changed, and the above recording process is repeated to complete the recording of the pressure difference and focal length value in different chambers 21 when different amounts of liquid are added or reduced. A corresponding relationship is established between the pressure difference and the focal length value, that is, the lens calibration is completed, so that the surface shape of the deformable light-transmitting film 1 can be determined by the pressure difference. Then, during the use of the lens, after the required focal length value is determined, a certain amount of corresponding liquid is added or reduced to each chamber 21 through the liquid quantity control component 41. The pressure detection component 42 monitors that the pressure value in the corresponding chamber 21 or the difference in pressure values ​​in different chambers 21 reaches the pressure value or air pressure difference corresponding to the focal length value during the calibration process, and stops adding or reducing the liquid. At this time, the focal length value of the lens is adjusted to meet the usage requirements and can be used normally.

[0055] In some embodiments, as shown in FIG5 , the liquid volume control assembly 41 includes a liquid circulation pipeline 411 and a pumping device 412. Each chamber 21 is connected to a liquid circulation pipeline 411. Each liquid circulation pipeline 411 can be connected to a pumping device 412. For example, the pumping device 412 can be a mechanical peristaltic pump. Alternatively, each liquid circulation pipeline 411 can be connected to the same pumping device 412. For example, the pumping device 412 can be a syringe pump. The syringe pump includes multiple syringes. Each chamber 21 can be connected to a syringe through a liquid circulation pipeline 411. In this way, the pumping device 412 can pump liquid into or out of the chamber 21 through the liquid circulation pipeline 411, and the pumping or pumping out of liquids in different chambers 21 does not interfere with each other. It can be understood that, for example, when the deformable light-transmitting film 1 needs to be convexly deformed to form a positive lens, the pumping device 412 connected to the lower chamber 21 is turned on and the liquid is pumped into the lower chamber 21 through the liquid circulation pipe 411. At this time, the pumping device 412 connected to the upper chamber 21 is turned on and the liquid is pumped out of the upper chamber 21 through the liquid circulation pipe 411, wherein the liquid circulation pipe 411 can be, for example, a rubber hose, and the pumping device 412 can be, for example, a mechanical peristaltic pump or a syringe pump.

[0056] In some embodiments, as shown in FIG. 5 , each chamber 21 may be connected to a discharge line 421 , and the discharge line 421 may be used to discharge gas in the chamber 21 when liquid is injected into the chamber 21 .

[0057] The pressure detection assembly 42 includes multiple pressure detection devices 422. Each pressure detection device 422 is provided on the discharge line 421 or the liquid circulation line 411 to detect the pressure within the chamber 21. Furthermore, the discharge line 421 is provided with a discharge valve 4211. For example, if the pressure detection device 422 is provided on the discharge line 421, the connection between the pressure detection device 422 and the discharge line 421 is located between the discharge valve 4211 and the chamber 21. During initial liquid filling, the discharge valve 4211 on the discharge line 421 is opened, and then liquid is added to each chamber 21 via the liquid volume control assembly 41. Once the liquid is fully filled, the discharge valve 4211 is closed, simultaneously stopping the liquid injection process by the liquid volume control assembly 41.

[0058] After the liquid filling is completed, the lens needs to be calibrated. First, a certain amount of corresponding liquid is added or reduced to each chamber 21 through the liquid quantity control component 41, and the pressure detection device 422 is used to record the pressure value in each chamber 21 and the pressure value difference in different chambers 21. At the same time, the measured focal length value is recorded, and then the amount of added or reduced liquid is changed, and the above recording process is repeated to complete the recording of the pressure value difference and focal length value data in different chambers 21 when different amounts of liquid are added or reduced, and accordingly establish the connection between the pressure value difference and the focal length value, that is, complete the calibration of the lens, so that the surface shape of the deformable transparent film 1 can be determined by the pressure value difference. During lens use, after determining the desired focal length, the liquid volume control assembly 41 adds or removes a certain amount of the corresponding liquid from each chamber 21. The pressure detection device 422 monitors the pressure difference within each chamber 21. When the pressure difference reaches the pressure difference corresponding to the focal length value during calibration, or the pressure difference calculated from the calibration data, the addition or removal of liquid is stopped. At this point, the lens focal length is adjusted to meet the desired use and can be used normally. The discharge line 421 can be, for example, a rubber hose, and the pressure detection device 422 can be, for example, a pressure gauge.

[0059] In addition, it should be noted that during the liquid filling process, the discharge valve 4211 is opened to discharge the gas inside the cavity, the liquid circulation pipeline 411 and the discharge pipeline 421. After the exhaust is completed, during the lens calibration and subsequent lens use, the discharge valve 4211 is in a normally closed state.

[0060] The present disclosure exemplarily illustrates the installation and use process of an optical device, a lens, and a lens adjustment system.

[0061] First, arrange the first plate 23, the first seal 26, the third plate 25, the second seal 27, and the second plate 24 in sequence, then pass the fastening bolts through the second plate 24, the third plate 25, and the first plate 23 in sequence, and lock them with the fastening nuts to complete the installation of the optical device, and then connect the liquid circulation pipeline 411 and the discharge pipeline 421 to the corresponding chamber 21 through the through hole 22.

[0062] Then, the liquid is filled, the discharge valve 4211 is opened, and the liquid is pumped into the corresponding chamber 21 through the pumping device 412 and the liquid circulation pipeline 411. After the liquid is filled, the discharge valve 4211 is closed, and then the lens is calibrated. Liquid is pumped into one of the chambers 21 to increase a certain amount, and at the same time, the liquid in the other chamber 21 is pumped out by the same amount, and the pressure detection device 422 is used to record the pressure value and the difference in the two chambers 21, and the measured focal length value is recorded at the same time. Then, the amount of pumped and pumped out liquid is changed, and the above recording process is repeated to complete the recording of the pressure value difference and focal length value data in the two chambers 21 when pumping and pumping out different amounts of liquid, and accordingly establish the relationship between the pressure value difference and the focal length value, that is, complete the calibration of the lens, so that the surface shape of the deformable transparent film 1 can be determined by the pressure value difference.

[0063] When using the lens, if the deformable light-transmitting film 1 needs to be deformed convexly to form a positive lens, the pumping device 412 connected to the lower chamber 21 is opened and pumps liquid into the lower chamber 21 through the liquid circulation pipeline 411. At the same time, the pumping device 412 connected to the upper chamber 21 pumps out an equal amount of liquid from the upper chamber 21 through the liquid circulation pipeline 411 until the positive lens formed by the convex deformation of the deformable light-transmitting film 1 meets the focal length adjustment requirements.

[0064] When the deformable light-transmitting film 1 needs to be deformed concavely to form a negative lens, the pumping device 412 connected to the upper chamber 21 is opened and pumps liquid into the upper chamber 21 through the liquid circulation pipeline 411. At the same time, the pumping device 412 connected to the lower chamber 21 pumps out an equal amount of liquid from the lower chamber 21 through the liquid circulation pipeline 411 until the negative lens formed by the deformable light-transmitting film 1 deforming concavely meets the focal length adjustment requirements.

[0065] In addition, the present disclosure exemplarily shows the specific structural parameters and focal length adjustment ranges of some lenses.

[0066] Example 1: The diameters of the first light-transmitting hole 231 and the second light-transmitting hole 241 are both 50 mm, the length of the first seal 26 and the second seal 27 along the first direction is 50 mm, the thickness of the deformable light-transmitting film 1 is 1 mm, and the material is PDMS, whose refractive index is 1.411 and the Abbe number is 40.0. The upper layer liquid is a NaCl aqueous solution with a refractive index of 1.33 and an Abbe number of 55.8. The lower layer liquid is colorless transparent silicone oil with a refractive index of 1.65 and an Abbe number of 62.8. Through calculation, the shortest negative focal length of the lens is -75.5 mm, and the shortest positive focal length is 75.8 mm.

[0067] Example 2: The diameters of the first light-transmitting hole 231 and the second light-transmitting hole 241 are both 100 mm, the lengths of the first seal 26 and the second seal 27 along the first direction are 100 mm, the thickness of the deformable light-transmitting film 1 is 1 mm, the material is PDMS, its refractive index is 1.411, and its Abbe number is 40.0. The upper layer liquid is a NaCl aqueous solution with a refractive index of 1.33 and an Abbe number of 55.8. The lower layer liquid is colorless transparent silicone oil with a refractive index of 1.65 and an Abbe number of 62.8. By calculation, the shortest negative focal length of the lens is -151.2 mm, and the shortest positive focal length is 151.5 mm.

[0068] Example 3: The diameters of the first light-transmitting hole 231 and the second light-transmitting hole 241 are both 200 mm, the lengths of the first seal 26 and the second seal 27 along the first direction are 200 mm, the thickness of the deformable light-transmitting film 1 is 1 mm, the material is PDMS, its refractive index is 1.411, and its Abbe number is 40.0. The upper layer liquid is a NaCl aqueous solution with a refractive index of 1.33 and an Abbe number of 55.8. The lower layer liquid is colorless transparent silicone oil with a refractive index of 1.65 and an Abbe number of 62.8. By calculation, the shortest negative focal length of the lens is -302.5 mm, and the shortest positive focal length is 302.8 mm.

[0069] 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.

[0070] 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.

[0071] 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: Deformable light-transmitting film (1); Housing (2); as well as A light-transmitting structure (3) is arranged on the shell (2); the deformable light-transmitting film (1), the shell (2) and the light-transmitting structure (3) form at least two chambers (21) suitable for containing liquid; the deformable light-transmitting film (1) is arranged between two adjacent chambers (21); the light-transmitting structure (3) and the deformable light-transmitting film (1) together form a light path for light to pass through; the two adjacent chambers (21) are suitable for containing liquids with different refractive indices; each chamber (21) is provided with at least one through hole (22); the through hole (22) is suitable for communicating with a control structure (4) to change the amount of liquid in the chamber (21).

2. The optical device according to claim 1, characterized in that The at least two chambers (21) are arranged in sequence along a first direction, the light-transmitting structure (3) comprises a first light-transmitting portion (31) located at a first end of the shell (2) along the first direction and a second light-transmitting portion (32) located at a second end opposite to the first end, the first direction is perpendicular to the first light-transmitting portion (31) or the second light-transmitting portion (32), and the central axis of the deformable light-transmitting film (1) is parallel to the first direction.

3. The optical device according to claim 2, characterized in that The shell (2) comprises a first plate (23), a second plate (24) and a third plate (25) located between the first plate (23) and the second plate (24); a first sealing member (26) is arranged between the first plate (23) and the third plate (25); a second sealing member (27) is arranged between the second plate (24) and the third plate (25); the first plate (23), the third plate (25) and the first sealing member (26) and the second plate (24), the third plate (25) and the second sealing member (27) respectively form the chamber (21); the first light-transmitting portion (31) is arranged on the first plate (23), the second light-transmitting portion (32) is arranged on the second plate (24); the deformable light-transmitting film (1) is arranged on the third plate (25); and the first sealing member (26) and the second sealing member (27) are each provided with at least one through hole (22).

4. The optical device according to claim 3, characterized in that A first light-transmitting hole (231) is provided on the first plate body (23), and the first light-transmitting portion (31) is configured as a first optical lens (311) covering the first light-transmitting hole (231), and / or a second light-transmitting hole (241) is provided on the second plate body (24), and the second light-transmitting portion (32) is configured as a second optical lens (321) covering the second light-transmitting hole (241).

5. The optical device according to claim 4, characterized in that The radial dimension of the first light-transmitting hole (231) and / or the second light-transmitting hole (241) is not less than 30 mm.

6. The optical device according to claim 4 or 5, characterized in that The length of at least one of the first sealing member (26) and the second sealing member (27) along the first direction is not less than one fifth of the diameter of the deformable light-transmitting film (1).

7. The optical device according to any one of claims 3 to 6, characterized in that: The first plate body (23) and the second plate body (24) are connected via a connecting assembly (5) so that the third plate body (25), the first sealing member (26), and the second sealing member (27) can be clamped between the first plate body (23) and the second plate body (24).

8. The optical device according to claim 7, characterized in that The connecting assembly (5) comprises a plurality of clamping members (51) arranged at circumferential intervals around the first plate body (23) or the second plate body (24), wherein the clamping members (51) are respectively connected to the first plate body (23) and the second plate body (24), and the clamping members (51) can selectively pass through the third plate body (25).

9. The optical device according to any one of claims 1 to 8, characterized in that: The through hole (22) is formed on the housing (2).

10. A lens, characterized in that: The optical device comprises the optical device according to any one of claims 1 to 9 and a liquid filled in the chamber (21).

11. The lens according to claim 10, characterized in that: The density of the liquid in each chamber (21) is the same.

12. A lens adjustment system, characterized in that: It comprises the lens as claimed in claim 10 or 11 and the control structure (4).

13. The lens adjustment system according to claim 12, characterized in that: The control structure (4) comprises a liquid quantity control component (41) and a pressure detection component (42) which are connected to each of the chambers (21); the liquid quantity control component (41) is used to adjust the quantity of liquid in each of the chambers (21) so as to adjust the radius of curvature of the deformable light-transmitting membrane (1); and the pressure detection component (42) is used to detect the pressure in each of the chambers (21) so as to enable the liquid quantity control component (41) to adjust the quantity of liquid in each of the chambers (21).

14. The lens adjustment system according to claim 13, characterized in that: The liquid quantity control component (41) comprises a liquid circulation pipeline (411) and a pumping device (412), each of the chambers (21) is connected to the liquid circulation pipeline (411), each of the liquid circulation pipelines (411) is connected to the pumping device (412), or each of the liquid circulation pipelines (411) is connected to the same pumping device.

15. The lens adjustment system according to claim 14, characterized in that: Each of the chambers (21) is connected to a discharge pipeline (421), and the pressure detection assembly (42) includes a plurality of pressure detection devices (422). The pressure detection devices (422) are arranged on the discharge pipeline (421) or the liquid circulation pipeline (411).

16. The lens adjustment system according to claim 15, characterized in that: The discharge pipeline (421) is provided with a discharge valve (4211).

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