Optical system for adjusting light emitting path, manufacturing method of optical system and using method of optical system

Abstract

The embodiment of the invention provides an optical system for adjusting a light emitting path, a manufacturing method of the optical system and a using method of the optical system. The optical system comprises at least one deformable cavity and an actuating adjusting element. Wherein the deformable chamber responds to the adjustment control of the actuating adjustment element, so that at least one of the type and the focal length of the optical system is changed. According to the optical system capable of adjusting the light emitting path, fluid zooming can be freely controlled, the application requirements of different occasions are met, the spherical aberration of the optical system is effectively reduced, and the imaging quality is remarkably improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of optical devices, and in particular to an optical system for adjusting a light emission path, a method for manufacturing the optical system, and a method for using the optical system. Background Art

[0002] Focus adjustment is a basic function of camera imaging. The traditional zoom optical system consists of a series of solid lenses with fixed focal lengths, which use optical elements combined with complex motion to achieve zoom. The zoom process requires precise control of the movement trajectory of the lens group, which is complex to operate, has low reliability, large size and high cost, and is difficult to meet the imaging needs of machine vision in intelligent manufacturing equipment.

[0003] Therefore, research on liquid lenses has received a lot of attention in recent years. Liquid lenses control the deflection angle of the outgoing light by changing the surface curvature of the liquid to achieve the purpose of zooming. Compared with traditional mechanical zoom lenses, liquid lenses have the advantages of simple structure, small size, fast response speed, low noise, low cost, and high integration. They have important application value in biomedicine, robotics, intelligent manufacturing and other fields.

[0004] However, the liquid lenses currently available on the market are all composed of an elastic film lens, a liquid chamber lens and a hard substrate lens, and the focal length of the liquid lens is adjusted by changing the surface curvature radius of the elastic film lens to achieve a zoom effect. However, due to the large difference in optical properties between the elastic film lens and the hard substrate lens, and the hard substrate lens itself has poor optical properties, this can easily lead to poor aberrations and poor imaging effects, thus limiting the zoom effect of the liquid lens, making it difficult to achieve the focal length required for imaging. Summary of the invention

[0005] In order to solve the problems in the related art, the embodiments of the present disclosure provide an optical system capable of adjusting the light emission path, a method for manufacturing the optical system, and a method for using the optical system to overcome the shortcomings of the liquid lens in the prior art.

[0006] In a first aspect, an optical system for adjusting the light emission path is provided in an embodiment of the present disclosure, and as an optical component, it can be adapted to various imaging technologies.

[0007] Specifically, the optical system includes: at least one deformable chamber and an actuating adjustment element; wherein the deformable chamber responds to the adjustment control of the actuating adjustment element so that at least one of the type and focal length of the optical system changes.

[0008] In combination with the first aspect, in a first implementation of the first aspect of the present disclosure, the deformable chamber is formed by sealing a deformable optical film group.

[0009] In combination with the first implementation of the first aspect, in a second implementation of the first aspect of the present disclosure, the deformable chamber further includes a side cover plate configured to support and seal the deformable optical film group.

[0010] In combination with the first and second implementations of the first aspect, in the third implementation of the first aspect of the present disclosure, the deformable optical film group includes a plurality of flexible films, the flexible films are stacked on each other along a first direction, and hollow cavities are formed between adjacent flexible films, wherein the first direction is a longitudinal direction perpendicular to the surface of the flexible film.

[0011] In combination with the third implementation of the first aspect, in a fourth implementation of the first aspect of the present disclosure, the deformable optical film assembly includes two or more flexible films; and / or,

[0012] The number of the hollow cavity is one or more.

[0013] In combination with the fourth implementation manner of the first aspect, in a fifth implementation manner of the first aspect of the present disclosure, the number of the flexible films is three or more; and / or the number of the hollow cavities is two or more.

[0014] In combination with the third implementation manner of the first aspect, in a sixth implementation manner of the first aspect of the present disclosure, a fluid medium is stored in the hollow cavity.

[0015] In combination with the fourth to sixth implementations of the first aspect, the present disclosure discloses a seventh implementation of the first aspect, wherein the number of the flexible films is four, and the four flexible films are stacked and sealed along a first direction to form a first hollow cavity, a second hollow cavity, and a third hollow cavity arranged in sequence from top to bottom.

[0016] In combination with the seventh implementation method of the first aspect, in the eighth implementation method of the first aspect of the present disclosure, by controlling the incident light to penetrate the deformable optical film group along the first direction, the lens is used as at least one of a convex lens, a concave lens, a double convex lens, a double concave lens, a concave-convex lens or a plano-concave lens.

[0017] In combination with the third implementation manner of the first aspect, in the ninth implementation manner of the first aspect of the present disclosure, the actuating adjustment element is sealingly engaged with the upper and lower surfaces of the deformable membrane group, and is configured to respectively control the parameters of the first fluid medium contained in the first hollow cavity and the third hollow cavity, and / or adjust the parameters of the second fluid medium inside the second hollow cavity, so that the flexible film is bent and deformed, thereby adjusting at least one of the type and focal length of the optical system to change.

[0018] In combination with the ninth implementation manner of the first aspect, in the tenth implementation manner of the first aspect of the present disclosure, the first fluid medium and the second fluid medium are the same or different fluid media; and / or, the first fluid medium and the second fluid medium are gas media or liquid media.

[0019] In combination with the seventh implementation manner of the first aspect, in an eleventh implementation manner of the first aspect of the present disclosure, the optical system further includes a first channel formed in the second hollow cavity.

[0020] In combination with the eleventh implementation manner of the first aspect, in a twelfth implementation manner of the first aspect of the present disclosure, the first channel is horizontally disposed along the second direction and penetrates the second hollow cavity.

[0021] In combination with the twelfth implementation manner of the first aspect, in the thirteenth implementation manner of the first aspect of the present disclosure, the first channel is configured as a total reflection channel, a semi-reflection channel or a directional emission channel of the incident light.

[0022] In combination with the eleventh to thirteenth implementations of the first aspect, in the fourteenth implementation of the first aspect of the present disclosure, in response to the actuating adjustment element, the incident light entering the first channel along a second direction perpendicular to the first direction at a preset incident angle can be totally reflected in the second hollow cavity without penetrating the first hollow cavity and the third hollow cavity, so that the optical system is used as a total reflection mirror; or semi-reflected in the second hollow cavity and partially penetrated the first hollow cavity and the third hollow cavity, so that the optical system is used as a semi-reflecting mirror.

[0023] In combination with the eleventh to thirteenth implementations of the first aspect, in the fifteenth implementation of the first aspect of the present disclosure, in response to the actuating adjustment element, incident light entering the first channel at a preset incident angle along a second direction different from the first direction can be directed and / or emitted from a specific position.

[0024] In combination with the first aspect, in a sixteenth implementation manner of the first aspect of the present disclosure, the actuating adjustment element is a micro fixed pump.

[0025] In a second aspect, an embodiment of the present disclosure provides a focus adjustment device for an optical system, wherein the adjustment device comprises the optical system described in any one of the aforementioned embodiments.

[0026] In a third aspect, an optical imaging device is provided in an embodiment of the present disclosure, wherein the device includes a receiver, a processor, a controller and an optical system, wherein the receiver, the processor and the controller are electrically connected, and the controller is connected to the optical system, wherein the receiver is one or more communication interfaces for receiving focusing signals, and the processor includes one or more processing units for performing analog electronic processing on the received signals and sending them to the controller, and the controller adjusts the optical characteristics of the optical system in response to the received control instructions, and the optical system is the optical system described in any one of the aforementioned embodiments.

[0027] In a fourth aspect, an embodiment of the present disclosure provides a method for manufacturing an optical system, wherein the optical system is the optical system described in any one of the preceding embodiments, and the manufacturing method comprises the following steps:

[0028] Step S1: providing a plurality of flexible films, pre-stretching the flexible films, and stacking the pre-stretched flexible films;

[0029] Step S2: providing a side cover plate, and sealingly joining the edge of the flexible film to the side cover plate to form a deformable optical film group and a plurality of hollow cavities constituting an optical system;

[0030] Step S3: providing an actuating adjustment element, connecting the actuating adjustment element to at least a portion of the hollow cavity and sealingly engaging the actuating adjustment element;

[0031] Step S4: injecting a fluid medium into the hollow cavity to obtain the optical system.

[0032] In combination with the fourth aspect, in a first implementation of the fourth aspect of the present disclosure, in step S2, the deformable optical film group includes four layers of flexible films, and the hollow cavity includes at least a first hollow cavity, a second hollow cavity and a third hollow cavity.

[0033] In combination with the first implementation method of the fourth aspect, in the second implementation method of the fourth aspect of the present disclosure, a first fluid medium is injected into the first hollow cavity and the third hollow cavity, and a second fluid medium is injected into the second hollow cavity, and the actuating adjustment element is configured to adjust the parameters of the first fluid medium and the second fluid medium so that the optical properties of the deformable optical film group change.

[0034] In a fifth aspect, an embodiment of the present disclosure provides a method for using an optical system, wherein the optical system is the optical system described in any one of the preceding embodiments, and the method comprises the following steps:

[0035] The optical system provides a deformable optical film group composed of four layers of flexible films, which are connected to each other to form three hollow cavities from top to bottom, and at least one of the type and focal length of the optical system is adjusted by adjusting the parameters of the fluid medium in the hollow cavity by actuating the adjusting element; wherein,

[0036] When incident light is directed toward the optical system along a first direction perpendicular to the flexible film, the pressure, direction or speed of the fluid medium in the hollow cavity is adjusted by actuating the adjusting element to freely form at least one of a variable focus convex lens, a concave lens, a biconvex lens, a biconcave lens, a concave-convex lens or a plano-concave lens of different shapes and curvatures; or,

[0037] When the incident light is directed toward the optical system at a preset incident angle along a second direction perpendicular to the first direction, the pressure, direction, speed or at least one of the medium properties of the fluid medium in the hollow cavity is adjusted by actuating the adjusting element, so that the incident light can be totally reflected, semi-reflected or directed and / or emitted from a specific position in the hollow cavity.

[0038] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0039] The optical system disclosed in the present invention, which is capable of adjusting the light emission path, can realize free control of fluid zoom, and form, for example, convex lenses, concave lenses, or total reflection mirrors as required, to meet the application requirements of different occasions; it can achieve a wide focusing range and high adjustment accuracy, which can reach nanometer-level accuracy, and the spherical aberration of the optical system is effectively reduced, and the imaging quality is significantly improved.

[0040] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Other features, objectives and advantages of the present disclosure will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0042] Figure 1 A schematic diagram showing the structure of an optical system according to an embodiment of the present disclosure is shown;

[0043] Figure 2 A schematic diagram showing a state of an optical system according to an embodiment of the present disclosure Figure 1 ;

[0044] Figure 3 A schematic structural diagram of an optical system according to another embodiment of the present disclosure is shown;

[0045] Figure 4 A schematic diagram showing a state of an optical system according to another embodiment of the present disclosure Figure 1 ;

[0046] Figure 5 A schematic diagram showing a state of an optical system according to another embodiment of the present disclosure Figure 2 ;

[0047] Figure 6 A schematic diagram showing a state of an optical system according to another embodiment of the present disclosure Figure 3 ;

[0048] Figure 7 A schematic diagram showing a state of an optical system according to another embodiment of the present disclosure Figure 4 ;

[0049] Figure 8 A schematic diagram showing a state of an optical system according to another embodiment of the present disclosure Figure 5 ;

[0050] Fig. 9 A schematic diagram showing a state of an optical system according to another embodiment of the present disclosure Figure 6 ;

[0051] Fig.10 A schematic diagram showing a state of an optical system according to another embodiment of the present disclosure Figure 7 ;

[0052] Fig.11 A schematic diagram showing a state of an optical system according to another embodiment of the present disclosure Figure 8 ;

[0053] Fig.12 A schematic diagram showing a state of an optical system according to another embodiment of the present disclosure Figure 9 ;

[0054] Fig.13 A schematic diagram showing a state of an optical system according to another embodiment of the present disclosure Figure 10 .

[0055] Among them, the specific drawings are marked as:

[0056] 10-deformable optical film group; 101-flexible film; 11-first hollow cavity; 12-second hollow cavity; 13-third hollow cavity; 20-side cover plate; 30-actuating adjustment element; 120-first channel.

[0057] It should be understood that the size of each component shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0058] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. In addition, for the sake of clarity, parts not related to the description of the exemplary embodiments are omitted in the accompanying drawings.

[0059] In the present disclosure, it should be understood that terms such as "include" or "have" are intended to indicate the presence of features, numbers, steps, behaviors, components, parts, or a combination thereof disclosed in the present specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, behaviors, components, parts, or a combination thereof exist or are added.

[0060] It should also be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0061] As mentioned above, most of the existing liquid lenses are composed of elastic film lenses, liquid chamber lenses and hard substrate lenses. Liquid lenses with this structure have many problems such as aberrations and poor imaging effects. In addition, there are also liquid zoom systems on the market that are driven by piezoelectric drivers and shape memory alloys. Due to the hysteresis and creep of the drive response, it is easy to make it difficult to accurately control and ensure the change of lens focal length, and the zoom repeatability accuracy is also poor.

[0062] To solve the above problems, an embodiment of the present disclosure provides an optical system capable of adjusting the light emission path, the optical system comprising: at least one deformable chamber and an actuating adjustment element; wherein the deformable chamber responds to the adjustment control of the actuating adjustment element, so that at least one of the type and focal length of the optical system changes. By designing a deformable optical film group and integrating the actuating adjustment unit to control the fluid medium parameters, free control of fluid zoom can be achieved, with a wide zoom range, sensitive response, and high adjustment accuracy, and the imaging quality can be significantly improved.

[0063] Figure 1 A schematic structural diagram of an optical system according to an embodiment of the present disclosure is shown.

[0064] like Figure 1 As shown, an optical system capable of adjusting the light emission path can be used as an optical component to cooperate with various imaging technologies, such as focusing electron microscopy technologies such as SEM and STEM, or used in optical microscopy technologies such as fluorescence microscopy, and of course can also be applied to biomedicine, robotics and intelligent manufacturing. The optical system disclosed in the present invention includes at least one deformable chamber and an actuating adjustment element, wherein the deformable chamber responds to the adjustment control of the actuating adjustment element to change at least one of the type and focal length of the optical system. Specifically:

[0065] The deformable chamber disclosed in the present invention is made of a deformable optical film group 10 and a side cover plate 20. The deformable optical film group 10 has adjustable optical properties;

[0066] The side cover plate 20 is configured to fix and package the deformable optical film group 10, wherein the deformable optical film group 10 and the side cover plate 20 together enclose a plurality of hollow cavities 11 and 12, and the hollow cavities are filled with a fluid medium;

[0067] The actuating adjustment element 30 is sealed to the upper and lower surfaces of the deformable optical film group 10 and is configured to control the parameters of the fluid medium so as to change at least one of the type, focal length or other optical characteristics of the optical system, thereby achieving the adjustable light emission path.

[0068] The actuation adjustment element 30 of the present disclosure at least includes a pressure control unit, such as a micro stationary pump.

[0069] The present invention can adjust the optical properties of the deformable optical film group by actuating the adjusting element, so as to realize free control of the zoom of the optical system, reduce spherical aberration, improve imaging quality, and form various types of optical devices according to requirements with high imaging accuracy.

[0070] In the embodiment of the present disclosure, the deformable optical module 10 is composed of a plurality of flexible films 101 stacked one on another along a first direction (Y-axis or vertical direction), and hollow cavities 11 and 12 are formed between adjacent flexible films 101, and a fluid medium is stored in the hollow cavity. The hollow cavity of the present disclosure can be filled with the same or different fluid media, and the fluid medium can be a gas medium or a liquid medium. For example, it can be a transparent liquid or gas medium with a certain refractive index (refractive index greater than 1.5), such as an air medium, polyacrylamide and / or a sodium chloride solution. The present disclosure does not impose any particular restrictions on the type of fluid medium, and the filling fluids suitable for making fluid optical systems (such as lenses) in the prior art all fall within the protection scope of the present disclosure.

[0071] The flexible film material disclosed herein uses polydimethylsiloxane elastomer, and the thickness of the flexible film is less than 0.2 μm, the transmittance is greater than 90%, the tensile strength is greater than 3.0 MPa, the applicable temperature range is -45°C-200°C, and it is non-toxic. Good transmittance and tensile strength can ensure the imaging effect of the optical system.

[0072] Furthermore, the deformable optical film group 10 of the present disclosure may include two or more layers of flexible films 101; or three or more layers of flexible films 101, and accordingly, the number of hollow cavities formed may be one or more, or may be two or more.

[0073] like Figure 1As shown, the deformable optical film group 10 of the present disclosure may include three layers of flexible films 101. The three layers of flexible films 101 are stacked and packaged at the side cover plate 20, and two hollow cavities are formed between adjacent flexible films 101, namely, a hollow upper cavity 11 and a hollow lower cavity 12. Among them, the hollow upper cavity 11 can be filled with a first fluid medium, and the hollow lower cavity 12 can be filled with a first fluid medium or a second fluid medium. The first fluid medium can be a gas, and the second fluid medium can be a liquid. The actuating adjustment element 30 is sealed and joined to the upper and lower surfaces of the deformable optical film group 10, and the focal length of the optical system is adjusted by controlling the parameters of the fluid medium by actuating the adjustment element 30.

[0074] like Figure 1 As shown, the hollow upper cavity 11 is filled with gas medium, and the hollow lower cavity 12 is filled with gas medium. The pressure parameters of the gas medium are adjusted by actuating the adjusting element 20 so that the gas pressures in the hollow upper and lower cavities are equal, that is, P1=P2, so as to form a Figure 1 The optical system shown in FIG. 1 ; when the hollow upper cavity is filled with liquid medium and the hollow lower cavity is filled with gas medium, the pressure of the hollow upper and lower cavities is adjusted so that P1 = P2, a structure such as Figure 2 The zoom convex lens shown.

[0075] According to the embodiments of the present disclosure, by enclosing a hollow cavity formed by a flexible film and filling it with fluid media of different properties or adjusting the parameters of the fluid medium in the hollow cavity, the zoom of the optical system can be freely controlled to form various types of optical devices as required, with high imaging quality and improved precision, and the production cost of the optical system is greatly reduced.

[0076] According to an embodiment of the present disclosure, a method for manufacturing an optical system having a three-layer flexible film is disclosed, comprising the following steps:

[0077] Providing three layers of flexible films, pre-stretching the three layers of flexible films at a preset stretching rate, and then stacking the pre-stretched flexible films. In the present disclosure, pre-stretching the flexible films in advance can better improve the activity of the flexible films and increase their response speed;

[0078] The flexible film located at the middle layer and the flexible film at the bottom layer are sealed and joined to the side cover plate, for example, by gluing or other sealing connection methods, and then the top flexible film is covered and sealed, so that a hollow upper cavity is formed between the top flexible film and the middle flexible film, and a hollow lower cavity is formed between the bottom flexible film and the middle flexible film;

[0079] Providing an actuating adjustment element, and sealingly engaging the actuating adjustment element with the top flexible film and the bottom flexible film respectively, wherein the sealing engagement method includes but is not limited to gluing, etc.;

[0080] A preset amount of fluid medium is injected into the hollow upper cavity and the hollow lower cavity, thereby obtaining the optical system with three layers of flexible films according to the embodiment of the present disclosure.

[0081] The method for using the optical system includes: controlling the incident light to pass through the optical system along a first direction (Y-axis direction or longitudinal direction), adjusting the pressure change of the fluid medium in the hollow upper cavity and the hollow lower cavity through a pressure control unit, and freely forming convex lenses or concave lenses of different shapes and curvatures.

[0082] According to another embodiment of the present disclosure, Figure 3 As shown, the deformable optical film group 10 of the present disclosure may include four layers of flexible films 101 .

[0083] The four layers of flexible films 101 are laminated and sealed on the side cover plate 20, and a first hollow cavity 11, a second hollow cavity 12 and a third hollow cavity 13 are formed from top to bottom between adjacent flexible films 101, wherein the first hollow cavity 11, the second hollow cavity 12 and the third hollow cavity 13 store the same or different fluid media, and the fluid medium can be a gas medium or a liquid medium.

[0084] Preferably, the first hollow cavity 11 and the third hollow cavity 13 of the present disclosure store a first fluid medium, and the second hollow cavity 12 stores a second fluid medium, wherein the first fluid medium has a first fluid medium parameter, and the second fluid medium has a second fluid medium parameter, and the fluid medium parameters include but are not limited to fluid pressure, direction, speed and fluid properties. Fluid properties are used to characterize the characteristic performance of the fluid itself, for example, they may include but are not limited to fluid refractive index, density, light transmittance, etc.

[0085] More preferably, in this embodiment, the first fluid medium is a gas medium, and the second fluid medium is a liquid medium. That is, as a preferred technical solution, the first hollow cavity 11 and the third hollow cavity 13 of the present disclosure are filled with a gas medium, and the second hollow cavity 12 is filled with a liquid medium.

[0086] The actuating adjustment element 30 disclosed in the present invention is configured to control the parameters of the first fluid medium contained in the first hollow cavity 11 and the third hollow cavity 13, such as gas pressure, respectively, and simultaneously adjust the parameters of the second fluid medium inside the second hollow cavity 12, such as liquid pressure, so that the flexible film constituting the deformable optical module undergoes adaptive bending deformation, thereby adjusting the optical properties of the optical system, such as changing the type, and / or changing the focal length, etc.

[0087] like Figures 4 to 11As shown, by controlling the pressure changes inside the first hollow cavity, the second hollow cavity and the third hollow cavity, that is, the pressure changes of P1, P2 and P3, the concave lenses, convex lenses, double convex lenses and total reflection mirrors of different shapes and curvatures can be freely formed.

[0088] For example, by adjusting P1=P2>P3, a variable-focus concave lens can be easily realized; by adjusting P1=P2<P3, a variable-focus convex lens can be easily realized; by adjusting P1>P3=P2, an additional lens can be easily realized. Fig. 9 The state of the lens shown in FIG. 1 is shown in FIG. 1 ; if P1 is adjusted to P3 = P2, the attachment can be easily realized. Fig.10 The state of the lens is shown.

[0089] According to an embodiment of the present disclosure, the optical system further includes a first channel 120 formed in the second hollow cavity 12. Figure 3 As shown, the first channel 20 is horizontally arranged along the second direction (i.e., the X direction or the axial direction) and is formed through the second hollow cavity 12, and is configured as a total reflection channel or a directional emission channel for the incident light. The conventional zoom lens only allows the incident light to enter the lens along the light receiving surface (i.e., the upper or lower surface) of the lens, and then the light is refracted and focused or scattered out. The optical system of the embodiment of the present disclosure not only allows the incident light A to penetrate the flexible film in the longitudinal direction, but also allows the incident light B to pass through the flexible film in the transverse direction of the optical system, and be emitted in a directional or non-directional manner by total reflection, semi-reflection and / or refraction, so as to meet more application scenarios.

[0090] For example, Figures 4 to 8 As shown, the incident light is controlled to pass through the deformable optical film group along the first direction (longitudinal or Y-axis direction), and under the pressure adjustment control of the upper, middle and lower intermediate cavities by the actuating adjustment element, at least one of convex lenses, concave lenses, biconvex lenses, biconcave lenses, concave-convex lenses or plano-concave lenses of different shapes and curvatures can be freely formed, and the incident light refracts the above lenses and then emits from the lower surface of the lens to achieve the purpose of zooming. This is to solve the influence of electrical property parameters such as conductivity and dielectric constant on the zooming process in the electrical drive method in the prior art, and the influence of the external integrated device on the control degree of the liquid pressure in the lens cavity in the traditional mechanical drive liquid zoom system. The zoom lens disclosed in the present invention has a simple structure, a small size, a fast response speed and a low cost.

[0091] Moreover, compared with two or three layers of film, the present invention adopts a four-layer flexible film structure, which allows the existence of four optical interfaces, thereby increasing the controllability of the optical path change. For light incident in a first direction perpendicular to the flexible film, the optical path variation range is wider; and for light incident in a second direction parallel to the flexible film, bidirectional light transmission at a preset exit angle can be achieved.

[0092] The optical system of the embodiment of the present disclosure can also control the incident light to enter the first channel of the second hollow cavity at a preset incident angle along the second direction (X axis or lateral direction) perpendicular to the first direction, and adjust the fluid medium properties (such as transmittance, refractive index, density, etc.) in the first hollow cavity and the third hollow cavity by actuating the adjustment element, and at the same time control the fluid pressure of the first hollow cavity, the second hollow cavity and the third hollow cavity, so that the incident light can be totally reflected in the first channel without penetrating the upper and lower cavities, so that the zoom lens is used as a total reflection mirror. Further, by adjusting the shape or curvature of the third hollow cavity, or adjusting the incident angle, it can be achieved that the incident light passing through the first channel is directionally penetrated through the third hollow cavity and emitted from a specific position.

[0093] In summary, the optical system with four layers of flexible films in the embodiment of the present disclosure can not only realize the zooming of the incident light from the conventional longitudinal direction perpendicular to the upper and lower surfaces of the flexible film of the optical system, but also realize total reflection, semi-reflection and / or refraction after the incident light is incident from a lateral direction different from the lens conventionally known to people, and realize free control of the reflection and / or penetration position of the incident light, and control the light to be emitted only at a specific position, thereby meeting the needs of different application scenarios and increasing the adaptability and flexibility of the optical system.

[0094] According to another embodiment of the present disclosure, the present disclosure further provides an optical system focal length adjustment device, which includes an optical system. The specific structure of the optical system is the optical system described in any of the aforementioned embodiments. This embodiment will not repeat the structure of the optical system.

[0095] According to another embodiment of the present disclosure, an optical imaging device is provided, which includes a receiver, a processor, a controller and an optical system, wherein the receiver, the processor and the controller are electrically connected to each other, and the controller is connected to the zoom lens. The optical system of this embodiment is the optical system described in any one of the aforementioned embodiments, and the structure of the optical system is not repeated in this embodiment; the receiver is one or more communication interfaces for receiving focusing signals, the processor includes one or more processing units for performing analog electronic processing on the received signals and sending them to the controller, and the controller adjusts the optical characteristics of the optical system in response to the received control instructions.

[0096] In another disclosed embodiment, a method for manufacturing an optical system is provided, the method comprising the following steps:

[0097] Step S1: providing a plurality of flexible films, pre-stretching the flexible films, and stacking the pre-stretched flexible films; in the present disclosure, pre-stretching the flexible films can better improve the activity of the flexible films and enhance their response sensitivity;

[0098] Step S2: providing a side cover plate, and sealingly joining the edge of the flexible film to form a deformable optical film group and a plurality of hollow cavities constituting an optical system;

[0099] Step S3: providing an actuating adjustment element, connecting the actuating adjustment element to at least a portion of the hollow cavity and sealingly engaging the actuating adjustment element; for example, the actuating adjustment element may be sealingly engaged with the upper and lower surfaces of the deformable optical film assembly; the actuating adjustment element of the present disclosure at least includes a pressure control unit and a fluid medium adjustment module for adjusting fluid properties;

[0100] Step S4: injecting a fluid medium into the hollow cavity to obtain an optical system.

[0101] In step S2, the deformable optical film group includes four layers of flexible films, and the hollow cavity includes at least a first hollow cavity, a second hollow cavity and a third hollow cavity; the first fluid medium is injected into the first hollow cavity and the third hollow cavity, and the second fluid medium is injected into the second hollow cavity, and the actuating adjustment element is configured to adjust the parameters of the first fluid medium and the second fluid medium so that the optical properties of the deformable optical film group change.

[0102] In one embodiment of the present disclosure, a method for using an optical system is provided, wherein the optical system described in any one of the above embodiments is used, and the method includes the following method of use:

[0103] The optical system provides a deformable optical film group composed of four layers of flexible films, which are connected to each other to form three hollow cavities from top to bottom, and at least one of the type and focal length of the optical system is adjusted by adjusting the parameters of the fluid medium in the hollow cavity by actuating the adjusting element; wherein,

[0104] When incident light is directed toward the optical system along a first direction perpendicular to the flexible film, the pressure, direction or speed of the fluid medium in the hollow cavity is adjusted by actuating the adjusting element to freely form at least one of a variable focus convex lens, a concave lens, a biconvex lens, a biconcave lens, a concave-convex lens or a plano-concave lens of different shapes and curvatures; or,

[0105] When the incident light is directed toward the optical system at a preset incident angle along a second direction perpendicular to the first direction, the pressure, direction, speed or at least one of the medium properties of the fluid medium in the hollow cavity is adjusted by actuating the adjustment element, so that the incident light can be totally reflected, semi-reflected or directed and / or emitted from a specific position in the hollow cavity.

[0106] like Fig.11 , 12As shown in 13, when the incident light enters the optical system through the first channel at a preset angle parallel to the flexible film, the physical parameters of the fluid medium in each hollow cavity, such as pressure, direction, speed or medium properties, can be dynamically adjusted by adjusting the actuation parameters (such as pressure) of the actuation adjustment element, so that the incident light can be totally reflected, semi-reflected or directionally emitted after passing through the first channel along the second direction.

[0107] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present disclosure is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other.

Claims

1. An optical system for adjusting the light emission path, characterized in that: The optical system comprises: at least one deformable chamber and an actuating and adjusting element; wherein the deformable chamber responds to the adjustment control of the actuating and adjusting element so that at least one of the type and focal length of the optical system changes.

2. The optical system according to claim 1, characterized in that The deformable chamber is formed by sealing a deformable optical film group.

3. The optical system according to claim 2, characterized in that in, The deformable chamber also includes a side cover plate configured to support and seal the deformable optical film group.

4. The optical system according to claim 2 or 3, characterized in that: The deformable optical film group includes a plurality of flexible films, which are stacked one on another along a first direction and a hollow cavity is formed between adjacent flexible films, wherein the first direction is a longitudinal direction perpendicular to the surface of the flexible films.

5. The optical system according to claim 4, characterized in that The deformable optical film group includes two or more flexible films; and / or, The number of the hollow cavity is one or more.

6. The optical system according to claim 5, characterized in that in, The number of the flexible films is three or more; and / or the number of the hollow cavities is two or more.

7. The optical system according to claim 4, characterized in that The hollow cavity stores a fluid medium.

8. The optical system according to any one of claims 5 to 7, characterized in that in, The number of the flexible films is four, and the four flexible films are stacked and sealed along a first direction to form a first hollow cavity, a second hollow cavity and a third hollow cavity which are arranged in sequence from top to bottom.

9. The optical system according to claim 8, characterized in that: By controlling the incident light to penetrate the deformable optical film group along the first direction, the optical system is used as at least one of a convex lens, a concave lens, a double convex lens, a double concave lens, a concave-convex lens or a plano-concave lens.

10. The optical system according to claim 4, characterized in that The actuating adjustment element is sealed and joined to the upper and lower surfaces of the deformable optical film group, and is configured to respectively control the parameters of the first fluid medium contained in the first hollow cavity and the third hollow cavity, and / or adjust the parameters of the second fluid medium inside the second hollow cavity, so that the flexible film is bent and deformed, thereby adjusting at least one of the type and focal length of the optical system to change.

11. The optical system according to claim 10, characterized in that The first fluid medium and the second fluid medium are the same or different fluid media; and / or the first fluid medium and the second fluid medium are gaseous media or liquid media.

12. The optical system according to claim 8, characterized in that The optical system also includes a first channel formed in the second hollow cavity.

13. The optical system according to claim 12, wherein the first channel is disposed transversely along the second direction and penetrates the second hollow cavity, wherein: The second direction is parallel to the lateral direction of the flexible film.

14. The optical system according to claim 13, wherein the first channel is configured as a total reflection channel, a semi-reflection channel or a directional output channel for incident light.

15. The optical system according to any one of claims 12 to 14, characterized in that In response to the actuation adjustment element, incident light incident into the first channel at a preset incident angle along a second direction perpendicular to the first direction can be totally reflected in the second hollow cavity without penetrating the first hollow cavity and the third hollow cavity, so that the optical system is used as a total reflection mirror; Alternatively, semi-reflection is achieved in the second hollow cavity while partially penetrating the first hollow cavity and the third hollow cavity, so that the optical system is used as a semi-reflective mirror.

16. The optical system according to any one of claims 12 to 14, characterized in that In response to the actuation of the adjustment element, incident light entering the first channel at a preset incident angle along a second direction different from the first direction may be directed and / or emitted from a specific position.

17. The optical system according to claim 1, characterized in that: The actuating and adjusting element is a micro fixed pump.

18. A focus adjustment device for an optical system, characterized in that: The adjustment device comprises an optical system as claimed in any one of the preceding claims 1 to 17.

19. An optical imaging device, characterized in that: The device includes a receiver, a processor, a controller and an optical system, wherein the receiver, the processor and the controller are electrically connected, and the controller is connected to the optical system, wherein the receiver is one or more communication interfaces for receiving focusing signals, the processor includes one or more processing units for performing analog electronic processing on the received signals and sending them to the controller, and the controller adjusts the optical characteristics of the optical system in response to the received control instructions, and the optical system is the optical system as described in any one of claims 1 to 17.

20. A method for manufacturing an optical system, characterized in that: The optical system is an optical system as claimed in any one of claims 1 to 17, and the manufacturing method comprises the following steps: Step S1: providing a plurality of flexible films, pre-stretching the flexible films, and stacking the pre-stretched flexible films; Step S2: providing a side cover plate, and sealingly joining the edge of the flexible film to the side cover plate to form a deformable optical film group and a plurality of hollow cavities constituting an optical system; Step S3: providing an actuating adjustment element, connecting the actuating adjustment element to at least a portion of the hollow cavity and sealingly engaging the actuating adjustment element; Step S4: injecting a fluid medium into the hollow cavity to obtain the optical system.

21. The method for manufacturing an optical system according to claim 20, characterized in that: In step S2, the deformable optical film group includes four layers of flexible films, and the hollow cavity includes at least a first hollow cavity, a second hollow cavity and a third hollow cavity.

22. The method for manufacturing an optical system according to claim 21, characterized in that: A first fluid medium is injected into the first hollow cavity and the third hollow cavity, and a second fluid medium is injected into the second hollow cavity. The actuating adjustment element is configured to adjust parameters of the first fluid medium and the second fluid medium so that the optical properties of the deformable optical film group change.

23. A method for using an optical system, characterized in that: The optical system is the optical system according to any one of claims 1 to 17, and the method of use comprises the following steps: The optical system provides a deformable optical film group composed of four layers of flexible films, which are connected to each other to form three hollow cavities from top to bottom, and at least one of the type and focal length of the optical system is adjusted by adjusting the parameters of the fluid medium in the hollow cavity by actuating the adjusting element; wherein, When incident light is directed toward the optical system along a first direction perpendicular to the flexible film, the pressure, direction or speed of the fluid medium in the hollow cavity is adjusted by actuating the adjusting element to freely form at least one of a variable focus convex lens, a concave lens, a biconvex lens, a biconcave lens, a concave-convex lens or a plano-concave lens of different shapes and curvatures; or, When the incident light is directed toward the optical system at a preset incident angle along a second direction perpendicular to the first direction, the pressure, direction, speed or at least one of the medium properties of the fluid medium in the hollow cavity is adjusted by actuating the adjusting element, so that the incident light can be totally reflected, semi-reflected or directed and / or emitted from a specific position in the hollow cavity.

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