CN220584429U - Optical system for adjusting light ray outgoing path, focal length adjusting device and optical imaging device - Google Patents

Abstract

The embodiment of the utility model provides an optical system for adjusting a light ray emergent path, a focal length adjusting device and an optical imaging device, wherein the optical system comprises: at least one deformable chamber and actuating the adjustment element; wherein the deformable chamber is controlled in response to adjustment of the actuation adjustment element such that at least one of a type and a focal length of the optical system is changed. The optical system capable of adjusting the light emergent path can realize free control of fluid zooming, meet application requirements of different occasions, effectively reduce spherical aberration of the optical system and remarkably improve imaging quality.

Description

Optical system for adjusting light ray outgoing path, focal length adjusting device and optical imaging device

Technical Field

The utility model relates to the technical field of optical devices, in particular to an optical system for adjusting a light emergent path, a focal length adjusting device and an optical imaging device.

Background

Focal length adjustment is a fundamental function of camera imaging. The conventional zoom optical system is composed of a series of solid lenses with fixed focal lengths, and zooming is achieved by combining complex movements of optical elements. In the zooming process, the motion trail of the lens group needs to be precisely controlled, the operation is complex, the reliability is low, the size is large, the cost is high, and the imaging requirement of machine vision in intelligent manufacturing equipment is difficult to meet.

Therefore, in recent years, research on liquid lenses has received a great deal of attention. The liquid lens realizes the control of the deflection angle of the emergent light by changing the surface curvature of the liquid, thereby achieving the purpose of zooming. Compared with the traditional mechanical zoom lens, the liquid lens has the advantages of simple structure, small volume, high response speed, small noise, low cost, high integration level and the like, and has important application value in the fields of biomedical treatment, robotics, intelligent manufacturing and the like.

However, liquid lenses currently on the market are composed of an elastic thin 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 thin film lens, so that a zooming effect is realized. However, since the difference in optical performance between the elastic thin film lens and the hard substrate lens is large, and the hard substrate lens itself has poor optical performance, aberration is easily deteriorated, and imaging effect is poor, the zooming effect of the liquid lens is limited, and it is difficult to achieve a focal length required for imaging.

Disclosure of Invention

In order to solve the problems in the related art, embodiments of the present utility model provide an optical system, a focal length adjusting device and an optical imaging device for adjusting a light exit path, so as to overcome the defects of the liquid lens in the prior art.

In a first aspect, an embodiment of the present utility model provides an optical system for adjusting a light exit path, where the optical system is adaptable to various imaging technologies as an optical component.

Specifically, the optical system includes: at least one deformable chamber and actuating the adjustment element; wherein the deformable chamber is controlled in response to adjustment of the actuation adjustment element such that at least one of a type and a focal length of the optical system is changed.

With reference to the first aspect, in a first implementation manner of the first aspect, the deformable cavity is formed by sealing a deformable optical film group.

With reference to the first implementation manner of the first aspect, in a second implementation manner of the first aspect, the deformable chamber further includes a side cover plate configured to support and seal the deformable optical film group.

With reference to the first and second implementation manners of the first aspect, in a third implementation manner of the first aspect, the deformable optical film group includes a plurality of flexible films, the flexible films are arranged in a first direction in a lamination manner, and a hollow cavity is formed between adjacent flexible films, wherein the first direction is a longitudinal direction perpendicular to a surface of the flexible films.

With reference to the third implementation manner of the first aspect, in a fourth implementation manner of the first aspect, the deformable optical film group includes two or more layers of flexible films; and/or the number of the groups of groups,

the number of the hollow cavities is one or more.

With reference to the fourth implementation manner of the first aspect, in a fifth implementation manner of the first aspect, the number of the flexible films is three or more; and/or the number of the hollow cavities is two or more.

With reference to the third implementation manner of the first aspect, in a sixth implementation manner of the first aspect, the hollow cavity stores a fluid medium.

With reference to the fourth to sixth implementation manners of the first aspect, in a seventh implementation manner of the first aspect, the number of the flexible films is four, and the four flexible films are stacked and sealed along the first direction to form a first hollow cavity, a second hollow cavity and a third hollow cavity which are sequentially arranged from top to bottom.

With reference to the seventh implementation manner of the first aspect, in an eighth implementation manner of the first aspect, the present utility model controls the incident light to penetrate through the deformable optical film group along the first direction, so that the lens is used as at least one of a convex lens, a concave lens, a biconvex lens, a biconcave lens, a meniscus lens, or a plano-concave lens.

With reference to the third implementation manner of the first aspect, in a ninth implementation manner of the first aspect, the actuation adjustment element is sealingly engaged to the upper and lower surfaces of the deformable membrane group, and is configured to control parameters of the first fluid medium contained in the first hollow cavity and the third hollow cavity, and/or adjust parameters of the second fluid medium inside the second hollow cavity, so as to cause bending deformation of the flexible membrane, thereby adjusting at least one of a type and a focal length of the optical system.

With reference to the ninth implementation manner of the first aspect, in a tenth implementation manner of the first aspect, 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 medium or liquid medium.

With reference to the seventh implementation manner of the first aspect, in an eleventh implementation manner of the first aspect, the optical system further includes a first channel formed in the second hollow cavity.

With reference to the eleventh implementation manner of the first aspect, in a twelfth implementation manner of the first aspect, the first channel is transverse to the second direction and penetrates through the second hollow cavity.

With reference to the twelfth implementation manner of the first aspect, in a thirteenth implementation manner of the first aspect, the first channel is configured as a total reflection channel, a semi-reflection channel or a directional exit channel of the incident light.

With reference to eleventh to thirteenth implementation forms of the first aspect, in a fourteenth implementation form of the first aspect, in response to the actuation of the adjustment element, incident light that is incident into the first channel at a preset angle of incidence in a second direction perpendicular to the first direction may be caused to undergo total reflection within the second hollow cavity without penetrating the first and third hollow cavities, such that the optical system is used as a total reflection mirror; or semi-reflecting is performed in the second hollow cavity to partially penetrate the first hollow cavity and the third hollow cavity, so that the optical system is used as a half mirror.

With reference to the eleventh implementation manner of the first aspect, in a fifteenth implementation manner of the first aspect, in response to the actuation of the adjusting element, incident light that enters the first channel at a preset incident angle in a second direction different from the first direction may be directed and/or emitted from a specific location.

With reference to the first aspect, in a sixteenth implementation manner of the first aspect, the actuation adjustment element is a micro-stationary pump.

In a second aspect, an embodiment of the present utility model provides a focal length adjustment device of an optical system, where the adjustment device includes the optical system according to any one of the foregoing embodiments.

In a third aspect, an embodiment of the present utility model provides an optical imaging apparatus, where the apparatus includes a receiver, a processor, a controller, and an optical system, where the receiver, the processor, and the controller are electrically connected, and the controller is connected to the optical system, where the receiver is one or more communication interfaces for receiving a focusing signal, and the processor includes one or more processing units for performing analog processing on the received signal and sending the signal to the controller, and the controller adjusts an optical characteristic of the optical system in response to a received control instruction, and the optical system is the optical system according to any one of the previous embodiments.

The technical scheme provided by the embodiment of the utility model can have the following beneficial effects:

the optical system capable of adjusting the light emergent path can realize free control of fluid zooming, form a convex lens, a concave lens or a total reflection mirror and the like as required, and meet the application requirements of different occasions; the focusing range is wide, the adjusting precision is high, the nano-level precision can be achieved, the spherical aberration of the optical system is effectively reduced, and the imaging quality is obviously improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.

Drawings

Other features, objects and advantages of the present utility model will become more apparent from the following detailed description of non-limiting embodiments, taken in conjunction with the accompanying drawings. In the drawings:

fig. 1 shows a schematic configuration of an optical system according to an embodiment of the present utility model;

FIG. 2 shows a schematic diagram of a state of an optical system according to an embodiment of the utility model;

fig. 3 shows a schematic structural view of an optical system according to another embodiment of the present utility model;

FIG. 4 shows a schematic diagram of a state of an optical system according to another embodiment of the utility model;

FIG. 5 shows a second state diagram of an optical system according to another embodiment of the present utility model;

FIG. 6 shows a third state diagram of an optical system according to another embodiment of the utility model;

fig. 7 shows a state diagram four of an optical system according to another embodiment of the present utility model;

fig. 8 shows a state diagram five of an optical system according to another embodiment of the present utility model;

fig. 9 shows a state diagram six of an optical system according to another embodiment of the present utility model;

fig. 10 shows a state diagram seven of an optical system according to another embodiment of the present utility model;

fig. 11 shows a state diagram eight of an optical system according to another embodiment of the utility model;

fig. 12 shows a state diagram nine of an optical system according to another embodiment of the present utility model;

fig. 13 shows a state diagram of an optical system according to another embodiment of the present utility model.

Wherein, the specific reference numerals are as follows:

10-a deformable optical film stack; 101-a flexible film; 11-a first hollow cavity; 12-a second hollow cavity; 13-a third hollow cavity; 20-side cover plates; 30-actuating the adjustment element; 120-first pass.

It should be understood that the dimensions of the various elements shown in the figures are not drawn to actual scale. Further, the same or similar reference numerals denote the same or similar members.

Detailed Description

Hereinafter, exemplary embodiments of the present utility model 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, portions irrelevant to description of the exemplary embodiments are omitted in the drawings.

In the present utility model, it should be understood that terms such as "comprises" or "comprising," etc., are intended to indicate the presence of features, numbers, steps, acts, components, portions, or combinations thereof disclosed in the present specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, acts, components, portions, or combinations thereof are present or added.

In addition, it should be noted that, without conflict, the embodiments of the present utility model and the features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As mentioned above, most of the existing liquid lenses are composed of an elastic thin film lens, a liquid chamber lens and a hard substrate lens, and the liquid lens of this structure has various problems such as aberration and poor imaging effect; in addition, there are liquid zoom systems on the market that employ driving such as piezoelectric drivers and shape memory alloys, which are prone to cause difficulty in precise control and assurance of lens focal length variation due to the hysteresis and creep phenomena of driving response, and poor zoom repetition accuracy.

To solve the above problems, an embodiment of the present utility model provides an optical system capable of adjusting a light exit path, the optical system including: at least one deformable chamber and actuating the adjustment element; wherein the deformable chamber is controlled in response to adjustment of the actuation adjustment element such that at least one of a type and a focal length of the optical system is changed. Through designing the deformable optical film group, simultaneously fusing the actuating and adjusting unit to control the fluid medium parameters, the free control of fluid zooming can be realized, the zooming range is wide, the response is sensitive, the adjusting precision is high, and the imaging quality can be obviously improved.

Fig. 1 shows a schematic configuration of an optical system according to an embodiment of the present utility model.

As shown in fig. 1, an optical system capable of adjusting the light emitting path can be used as an optical component to be matched with various imaging technologies, such as SEM, STEM and other focusing electron microscopy, or used in fluorescence microscopy and other optical microscopy, and can of course also be applied to the fields of biomedical, robotics, intelligent manufacturing and the like. The optical system of the present utility model includes at least one deformable chamber and an actuation adjustment element, wherein the deformable chamber is controlled in response to adjustment of the actuation adjustment element to vary at least one of a type and a focal length of the optical system. Specifically:

the deformable chamber of the present utility model is made of a deformable optical film assembly 10 and a side cover 20 sealed. Wherein the deformable optical film group 10 has adjustable optical property attributes;

a side cover plate 20 configured to fixedly encapsulate the deformable optical film group 10, wherein the deformable optical film group 10 and the side cover plate 20 jointly enclose a plurality of hollow cavities 11, 12, and the hollow cavities are filled with a fluid medium;

actuating the adjustment element 30 is sealingly engaged to the upper and lower surfaces of the deformable optical film stack 10 and is configured to control parameters of the fluid medium to vary at least one of the type, focal length, or other optical characteristics of the optical system to effect the adjustability of the light exit path.

The actuation adjustment element 30 of the present utility model comprises at least a pressure control unit, such as a micro-stationary pump.

The utility model can realize the free control of the zooming of the optical system by actuating the adjusting element to adjust the optical characteristics of the deformable optical film group, can reduce the spherical aberration, improve the imaging quality, form various optical devices according to the requirement and has high imaging precision.

In the embodiment of the present utility model, the deformable optical module 10 is formed by stacking a plurality of flexible films 101 along a first direction (Y-axis or vertical direction), and hollow cavities 11, 12 are formed between adjacent flexible films 101, and fluid medium is stored in the hollow cavities. The hollow cavity of the utility model can be filled with the same or different fluid media, and the fluid media can be gas media or liquid media. For example, it may be a transparent liquid or gaseous medium having a certain refractive index (refractive index greater than 1.5), such as an air medium, a polyacrylamide and/or sodium chloride solution, or the like. The type of fluid medium is not particularly limited in the present utility model, and any filling fluid suitable for manufacturing a fluid optical system (e.g., a lens) in the prior art falls within the scope of the present utility model.

The flexible film material adopts the polydimethylsiloxane elastomer, the thickness of the flexible film is smaller than 0.2 mu m, the light transmittance is larger than 90%, the tensile strength is larger than 3.0MPa, the applicable temperature range is-45 ℃ to 200 ℃, and the flexible film material is nontoxic. Good light transmittance and tensile strength can ensure the imaging effect of the optical system.

Further, the deformable optical film set 10 of the present utility model may include two or more layers of flexible film 101; or three or more layers of flexible film 101, and accordingly, the number of hollow cavities formed may be one or more, or may be two or more.

As shown in fig. 1, the deformable optical film stack 10 of the present utility model may include three layers of flexible film 101. The three layers of flexible films 101 are laminated and packaged at the side cover plate 20, and two hollow cavities, namely a hollow upper cavity 11 and a hollow lower cavity 12, are formed between the adjacent flexible films 101. The hollow upper cavity 11 may be filled with a first fluid medium, the hollow lower cavity 12 may be filled with a first fluid medium or a second fluid medium, the first fluid medium may be a gas, and the second fluid medium may be a liquid. Actuating the tuning element 30 is sealingly engaged to the upper and lower surfaces of the deformable optical membrane assembly 10, and the focal length of the optical system is adjusted by actuating the tuning element 30 to control parameters of the fluid medium.

As shown in fig. 1, the hollow upper cavity 11 is filled with a gas medium, the hollow lower cavity 12 is filled with a gas medium, and the pressure parameters of the gas medium are adjusted by actuating the adjusting element 20, so that the gas pressures in the hollow upper cavity and the hollow lower cavity are equal, namely p1=p2, so as to form an optical system as shown in fig. 1; when the hollow upper cavity is filled with a liquid medium, the hollow lower cavity is filled with a gas medium, and the pressure of the hollow upper cavity and the pressure of the hollow lower cavity are adjusted so that p1=p2, and the varifocal convex lens shown in fig. 2 can be formed.

According to the embodiment of the utility model, the hollow cavity is formed by enclosing the flexible film, so that the zooming of the optical system can be freely controlled, various optical devices can be formed according to the requirements, the imaging quality is high, the accuracy is improved, and the manufacturing cost of the optical system is greatly reduced.

According to an embodiment of the present utility model, a method for manufacturing an optical system having three layers of flexible films is disclosed, including the steps of:

providing three layers of flexible films, respectively pre-stretching the three layers of flexible films at a preset stretching rate, and then placing the pre-stretched flexible films in a laminated manner;

the flexible film positioned in the middle layer and the flexible film positioned in the bottom layer are in sealing joint with the side cover plate, for example, an adhesive mode or other sealing connection modes can be adopted, and then the top layer flexible film is covered for sealing, so that a hollow upper cavity is formed between the top layer flexible film and the middle layer flexible film, and a hollow lower cavity is formed between the bottom layer flexible film and the middle layer flexible film;

providing an actuation adjustment element in sealing engagement with the top flexible film and the bottom flexible film, respectively, wherein the sealing engagement means includes, but is not limited to, gluing and the like;

and injecting a preset amount of fluid medium into the hollow upper cavity and the hollow lower cavity, thereby obtaining the optical system with the three-layer flexible film.

The use method of the optical system comprises the following steps: the incident light is controlled to pass through the optical system along a first direction (Y-axis direction or longitudinal direction), and the pressure change of fluid media in the hollow upper cavity and the hollow lower cavity is regulated by the pressure control unit to freely form convex lenses or concave lenses with different shapes and curvatures.

According to another embodiment of the present utility model, as shown in FIG. 3, the deformable optical film stack 10 of the present utility model may comprise four flexible films 101.

The four flexible films 101 are laminated and sealed on the side cover 20, and a first hollow cavity 11, a second hollow cavity 12 and a third hollow cavity 13 are sequentially formed between the adjacent flexible films 101 from top to bottom, 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 media can be a gas medium or a liquid medium.

Preferably, the first hollow cavity 11 and the third hollow cavity 13 of the present utility model store therein a first fluid medium and the second hollow cavity 12 stores therein 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, velocity, and fluid properties. While fluid properties are used to characterize the fluid's own characteristic properties, which may include, for example, but not limited to, fluid refractive index, density, light transmittance, and the like.

More preferably, in this embodiment, the first fluid medium is a gaseous medium and the second fluid medium is a liquid medium. That is, in a preferred embodiment, the first hollow chamber 11 and the third hollow chamber 13 of the present utility model are filled with a gaseous medium, and the second hollow chamber 12 is filled with a liquid medium.

The actuating adjustment member 30 of the present utility model is configured to control a parameter of the first fluid medium, such as gas pressure, contained in the first hollow cavity 11 and the third hollow cavity 13, respectively, while adjusting a parameter of the second fluid medium, such as liquid pressure, inside the second hollow cavity 12, so that the flexible film constituting the deformable optical module undergoes an adapted bending deformation, thereby adjusting the optical characteristics of the optical system, such as changing the type, and/or changing the focal length, etc.

As shown in fig. 4 to 11, by controlling the pressure changes inside the first hollow chamber, the second hollow chamber, and the third hollow chamber, that is, the pressure changes of P1, P2, and P3 by actuating the adjusting action of the adjusting element, it is possible to realize freely forming concave lenses, convex lenses, lenticular lenses, total reflection mirrors, and the like of different shapes and curvatures.

Illustratively, adjusting p1=p2 > P3, a variable-focus concave lens can be easily implemented; adjusting p1=p2 < P3, a variable-focus convex lens can be easily realized; adjusting p1 > p3=p2, the lens state shown in fig. 9 can be easily realized; by adjusting p1 < p3=p2, the lens state shown in fig. 10 can be realized relatively easily.

According to an embodiment of the present utility model, the optical system further includes a first channel 120 formed in the second hollow cavity 12, as shown in fig. 3, the first channel 20 is formed in the second hollow cavity 12 transversely and through in the second direction (i.e., X-direction or axial direction) and is configured as a total reflection channel or a directional exit channel of the incident light. Conventional zoom lenses allow only incident light to enter the lens along the light-receiving surface (i.e., upper or lower surface) of the lens, and then refractive focusing or divergent emission of the light occurs. The optical system of the embodiment of the utility model not only allows the incident light A to penetrate through the flexible film along the longitudinal direction, but also enables the incident light B to penetrate through the flexible film along the transverse direction of the optical system, so that total reflection, half reflection and/or refraction are performed to emit directionally or non-directionally, thereby meeting more application scenes.

Illustratively, as shown in fig. 4 to 8, the incident light is controlled to pass through the deformable optical film group along the first direction (longitudinal direction or Y-axis direction), and at least one of convex lens, concave lens, biconvex lens, biconcave lens, concave-convex lens or plano-concave lens with different shapes and curvatures can be freely formed under the adjustment control of the pressure of the upper, middle and lower three middle cavities by actuating the adjusting element, and the incident light refracts the lens and then is emitted from the lower surface of the lens for zooming purposes. The method solves the problems that in the prior art, the electric performance parameters such as conductivity, dielectric constant and the like affect the zooming process, and the traditional mechanical driving type liquid zooming system is affected by an external integrated device on the liquid pressure control degree in the lens cavity. The zoom lens has the advantages of simple structure, small volume, high response speed and low cost.

Compared with two or three layers of films, the four-layer flexible film structure is adopted, so that four optical interfaces exist, the controllability of light path change is improved, and the light path change range is wider for light rays incident in the first direction perpendicular to the flexible film; and for the light rays incident along the second direction parallel to the flexible film, the preset emergent angle bidirectional light transmission can be realized.

The optical system according to the embodiment of the present utility model can also control the incident light to be incident into 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 properties (such as light transmittance, refractive index, density, etc.) of the fluid medium in the first hollow cavity and the third hollow cavity by actuating the adjusting element, while controlling the fluid pressures of the first hollow cavity, the second hollow cavity, and the third hollow cavity, so that the incident light is totally reflected in the first channel without penetrating the upper and lower cavities, thereby making the zoom lens be used as a total reflection mirror. Further, by adjusting the shape or curvature of the third hollow cavity, or adjusting the angle of incidence, it may be achieved that incident light passing through the first channel is directed to exit from a specific location through the third hollow cavity.

In summary, the optical system with four layers of flexible films according to the embodiment of the utility model not only can realize zooming of incident light from the conventional longitudinal direction perpendicular to the upper and lower surfaces of the flexible films of the optical system, but also can realize total reflection, half reflection and/or refraction after the incident light is incident from the transverse direction different from the conventional cognitive lenses of people, can realize free control of the reflection and/or penetration positions of the incident light, can control the light to exit only at specific positions, can meet the requirements of different application occasions, and can increase the suitability and flexibility of the optical system.

According to another embodiment of the present utility model, the present utility model further provides an optical system focal length adjusting device, where the adjusting device includes an optical system, and the specific structure of the optical system is the optical system described in any one of the foregoing embodiments, and the structure of the optical system is not described herein.

According to still another embodiment of the present utility model, there is provided an optical imaging apparatus including 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 a zoom lens, the optical system of the embodiment is the optical system described in any one of the foregoing embodiments, and a structure of the optical system is not described herein; the receiver is one or more communication interfaces for receiving the focusing signals, and the processor comprises one or more processing units for performing analog-to-digital processing on the received signals and sending the signals to the controller, and the controller responds to the received control instructions to adjust the optical characteristics of the optical system.

In still another embodiment of the present utility model, there is provided a manufacturing method of an optical system, the manufacturing method including the steps of:

step S1, providing a plurality of flexible films, pre-stretching the flexible films, and placing the pre-stretched flexible film stacks; the utility model prestretches the flexible film in advance, which can better improve the activity of the flexible film and the response sensitivity of the flexible film;

step S2, providing a side cover plate, and sealing and jointing the edge of the flexible film to form a deformable optical film group and a plurality of hollow cavities forming an optical system;

step S3, providing an actuating and adjusting element, and communicating and sealing and engaging the actuating and adjusting element with at least part of the hollow cavity; for example, the actuation adjustment element may be sealingly engaged with the upper and lower surfaces of the deformable optical film stack; the actuating regulating element of the present utility model comprises at least a pressure control unit and a fluid medium regulating module for regulating a fluid property;

and S4, injecting a fluid medium into the hollow cavity, so as to obtain the optical system.

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, the second fluid medium is injected into the second hollow cavity, and the actuation adjustment element is configured to adjust parameters of the first fluid medium and the second fluid medium to cause a change in an optical characteristic of the deformable optical film group.

In an embodiment of the present utility model, there is provided a method of using the optical system according to any one of the preceding embodiments, including the following method of using:

so that the optical system provides a deformable optical film group formed by stacking four layers of flexible films, which are connected with each other to form three hollow cavities from top to bottom, and at least one of the type and the focal length of the optical system is adjusted by actuating an adjusting element to adjust the fluid medium parameters in the hollow cavities; wherein,

when the incident light is emitted to the optical system along a first direction perpendicular to the flexible film, the pressure, the direction or the speed change of the fluid medium in the hollow cavity is regulated by actuating the regulating element, so that at least one of a varifocal convex lens, a concave lens, a biconvex lens, a biconcave lens, a meniscus lens or a plano-concave lens with different shapes and curvatures is freely formed; or,

when incident light is directed to the optical system at a preset incident angle along a second direction perpendicular to the first direction, the incident light can be totally reflected, semi-reflected or directed and/or emitted from a specific position in the hollow cavity by actuating the adjusting element to adjust at least one of the pressure, direction, speed or medium property of the fluid medium in the hollow cavity.

As shown in fig. 11, 12 and 13, when the incident light beam is incident into the optical system through the first channel at a certain preset angle parallel to the flexible film, at this time, the physical parameters of the fluid medium in each hollow cavity, such as pressure, direction, speed or medium property, can be dynamically adjusted by adjusting the actuation parameters (such as pressure) of the actuation adjusting element, so that the incident light beam can be totally reflected, semi-reflected or directionally emergent after passing through the first channel along the second direction.

The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in the present utility model is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present utility model (but not limited to) having similar functions are replaced with each other.

Claims (19)

1. An optical system for adjusting a light exit path, the optical system comprising: at least one deformable chamber and actuating the adjustment element; wherein the deformable chamber is controlled in response to adjustment of the actuation adjustment element such that at least one of a type and a focal length of the optical system is changed.

2. The optical system of claim 1, wherein the deformable chamber is hermetically formed by a deformable optical film stack.

3. The optical system of claim 2, wherein the deformable chamber further comprises a side cover plate configured to support and seal the deformable optical membrane assembly.

4. An optical system according to claim 2 or 3, wherein the deformable optical film group comprises a plurality of flexible films, the flexible films being arranged one above the other along a first direction, and hollow cavities being formed between adjacent flexible films, wherein the first direction is a longitudinal direction perpendicular to the surfaces of the flexible films.

5. The optical system of claim 4, wherein the deformable optical film group comprises two or more layers of flexible film; and/or the number of the groups of groups,

the number of the hollow cavities is one or more.

6. The optical system of claim 5, wherein the number of flexible films is three or more; and/or the number of the hollow cavities is two or more.

7. The optical system of claim 4, wherein the hollow cavity has a fluid medium stored therein.

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

9. The optical system of claim 8, wherein: the deformable optical film group is penetrated by controlling incident light in the first direction such that the optical system is used as at least one of a convex lens, a concave lens, a biconvex lens, a biconcave lens, a meniscus lens, or a plano-concave lens.

10. The optical system of claim 8, wherein the actuation adjustment element is sealingly engaged to the upper and lower surfaces of the deformable optical membrane assembly and is configured to control parameters of the first fluid medium contained in the first and third hollow cavities, respectively, and/or adjust parameters of the second fluid medium inside the second hollow cavity to cause bending deformation of the flexible membrane to adjust at least one of a type and a focal length of the optical system.

11. The optical system of claim 10, wherein 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 medium or liquid medium.

12. The optical system of claim 8, further comprising a first channel formed in the second hollow cavity.

13. The optical system of claim 12, wherein the first channel is transverse to and extends through the second hollow cavity in a second direction, wherein the second direction is parallel to the transverse direction of the flexible film.

14. The optical system of claim 13, wherein the first channel is configured as a total reflection channel, a half reflection channel, or a directional exit channel of incident light.

15. The optical system of any one of claims 12 to 14, wherein in response to the actuation of the adjustment element, incident light entering the first channel at a predetermined angle of incidence in a second direction perpendicular to the first direction is caused to undergo total reflection within the second hollow cavity without penetrating the first and third hollow cavities, such that the optical system is used as a total mirror; or semi-reflecting is performed in the second hollow cavity to partially penetrate the first hollow cavity and the third hollow cavity, so that the optical system is used as a half mirror.

16. An optical system according to any one of claims 12 to 14, wherein in response to actuation of the adjustment element, incident light entering the first channel at a predetermined angle of incidence in a second direction different from the first direction is caused to be directed and/or emitted from a specific location.

17. An optical system according to claim 1, characterized in that: the actuation adjustment element is a miniature fixed pump.

18. A focal length adjustment device of an optical system, characterized in that the adjustment device comprises an optical system according to any of the preceding claims 1 to 17.

19. An optical imaging apparatus, characterized in that the apparatus comprises a receiver, a processor, a controller and an optical system, the receiver, the processor and the controller being electrically connected, the controller being connected to the optical system, wherein the receiver is one or more communication interfaces for receiving a focusing signal, the processor comprises one or more processing units for performing an electro-analogue processing of the received signal and transmitting to the controller, the controller adjusting an optical characteristic of the optical system in response to a received control instruction, the optical system being an optical system as claimed in any one of claims 1 to 17.