CN109633910B - AR/VR contact lens, manufacturing method thereof and electronic equipment - Google Patents
AR/VR contact lens, manufacturing method thereof and electronic equipment Download PDFInfo
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Abstract
The invention provides AR/VR contact lenses, methods of making and uses thereof. The contact lens includes: the near-eye film is arranged between the far-eye film and the near-eye film, and the intermediate layer comprises a capacitive sensor and a signal converter electrically connected with the capacitive sensor; the capacitive sensor is used for sensing the variation of capacitance at a preset position detected by the capacitive sensor during eyeball movement and outputting the variation of the capacitance at the preset position to the signal converter, and the signal converter is used for converting the variation of the capacitance at the preset position into a radio wave signal and sending the radio wave signal out. Therefore, the AR/VR contact lens can be used for experiencing two scenes of AR and VR without the heaviness of the lens frame, the oppressive feeling of the AR or VR glasses on the eyes can be eliminated, and the experience effect of an experiencer can be greatly improved.
Description
Technical Field
The invention relates to the technical field of glasses, in particular to AR/VR contact lenses and a manufacturing method and application thereof.
Background
With the development of science and technology, the VR (virtual reality) technology is a computer simulation system capable of creating and experiencing a virtual world, which uses a computer to generate a simulation environment, is a system simulation of multi-source information fusion, interactive three-dimensional dynamic views and entity behaviors, and can immerse a user in the simulation environment; the AR (augmented reality) technology is a new technology for seamlessly integrating real world information and virtual world information, and is characterized in that entity information (visual information, sound, taste, touch and the like) which is difficult to experience in a certain time space range of the real world originally is overlapped after simulation through scientific technologies such as computers and the like, virtual information is applied to the real world and is perceived by human senses, so that the sense experience beyond reality is achieved, namely real environment and virtual objects are overlapped to the same picture or space in real time. However, people must wear corresponding AR glasses or VR glasses when experiencing AR or VR technology, and the glasses frames of the AR glasses or the VR glasses are heavy and long-term, which brings strong oppression to the eyes of the experience person and seriously affects the experience effect and mood of the experience person.
Therefore, research on AR glasses or VR glasses is awaited.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide an AR/VR contact lens which has the function of experiencing AR or VR, eliminates the oppressive feeling of the glasses frame of the existing AR glasses or VR glasses to the eyes of an experiencer, or improves the experience effect of AR or VR of the experiencer.
In one aspect of the invention, the invention provides an AR/VR contact lens. According to an embodiment of the invention, the contact lens comprises: the eye protection device comprises a far-eye membrane, a near-eye membrane and an intermediate layer arranged between the far-eye membrane and the near-eye membrane, wherein the intermediate layer comprises a capacitive sensor and a signal converter electrically connected with the capacitive sensor; the capacitive sensor is used for sensing the variation of capacitance at a preset position detected by the capacitive sensor during eyeball movement and outputting the variation of the capacitance at the preset position to the signal converter, and the signal converter is used for converting the variation of the capacitance at the preset position into a radio wave signal and sending the radio wave signal. Therefore, the AR/VR contact lens can be matched with an external system for experiencing AR or VR and a display device for use, namely the system for experiencing AR or VR can receive radio wave signals formed by a signal converter in the AR/VR contact lens, obtain a preset picture to be output by processing and analyzing the radio wave signals and display the preset picture through the display device, so that the AR/VR contact lens can realize the effect of experiencing virtual reality or picture enhancement; moreover, compared with AR glasses or VR glasses in the prior art, the AR/VR contact lenses provided by the invention can be used for experiencing two scenes, namely AR and VR, and have no heavy feeling of the lens frame, so that the oppressive feeling of the AR glasses or VR glasses in the prior art brought to eyes and the surrounding of the eyes can be eliminated, and the experience effect of an experiencer can be greatly improved.
According to an embodiment of the invention, the outer circumference of the distal membrane and the outer circumference of the proximal membrane both extend beyond the outer circumference of the intermediate layer and are in sealing contact.
According to an embodiment of the invention, the hardness of the near-eye membrane is smaller than the hardness of the far-eye membrane.
According to an embodiment of the invention, the capacitive sensor comprises: a first transparent electrode disposed on the near-eye membrane; and the second transparent electrode is arranged on the far-eye film, is opposite to the first transparent electrode and is insulated from the first transparent electrode.
According to an embodiment of the present invention, there is a gap between the first transparent electrode and the second transparent electrode, and the gap between the first transparent electrode and the second transparent electrode is a vacuum.
According to the embodiment of the invention, the minimum distance of the gap between the first transparent electrode and the second transparent electrode is 0.2-0.3 mm.
According to an embodiment of the present invention, the far-eye membrane and the near-eye membrane are each divided into a pupil region and a non-pupil region, and the first transparent electrode and the second transparent electrode are each disposed in the non-pupil region.
According to an embodiment of the invention, the first transparent electrode is annularly arranged around the pupil region and the second transparent electrode is annularly arranged around the pupil region.
According to an embodiment of the present invention, the material forming the near-eye membrane is selected from at least one of polyimide, polyethylene terephthalate, and polymethyl methacrylate; the material forming the far eye film is selected from at least one of polyimide, polyethylene terephthalate and polymethyl methacrylate; the material forming the first transparent electrode is selected from indium tin oxide and graphene; the material forming the second transparent electrode is selected from indium tin oxide and graphene.
According to an embodiment of the present invention, the signal converter includes a nano-antenna, and a material forming the nano-antenna is selected from a silver nano-material and a carbon nano-material.
According to an embodiment of the present invention, the nano-antenna is electrically connected to the second transparent electrode.
According to an embodiment of the present invention, the first transparent electrode has a thickness of 0.1 to 0.15 micrometers; the thickness of the second transparent electrode is 0.1-0.15 micron; the thickness of the nano antenna is 0.1-0.15 micron.
In another aspect of the invention, an AR/VR display system is provided. According to an embodiment of the present invention, the display system includes: the AR/VR contact lenses described above; a wireless signal receiving system for receiving the radio wave signal output by the signal converter in the AR/VR contact lens; the signal processing system is electrically connected with the wireless signal receiving system and is used for converting the wireless signals into electrical signals; the image output system is electrically connected with the signal processing system and outputs a preset picture according to the electrical signal; and the display device is electrically connected with the image output system and is used for displaying the preset picture. Therefore, an experiencer can experience scenes of virtual reality or picture enhancement only by wearing the AR/VR contact lenses and using the wireless signal receiving system, the signal processing system, the image output system, the display device and other systems and devices in a matching mode.
In yet another aspect of the invention, the invention provides a method of making the AR/VR contact lens described above. According to an embodiment of the invention, the method of making a contact lens comprises: forming an intermediate layer on a surface of at least one of the periocular substrate and the distal ocular substrate; performing film forming pressing on the far-eye film substrate and the near-eye film substrate obtained after the intermediate layer is formed, so that the far-eye film substrate and the near-eye film substrate have shapes matched with eyeballs; and adhering the outer periphery of the far-eye film substrate and the outer periphery of the near-eye film substrate after film forming and pressing, and performing curing and forming treatment to obtain the AR/VR contact lens. Therefore, the method for manufacturing the contact lenses is simple, easy to operate, mature in process and easy for industrial mass production; the AR/VR contact lens manufactured by the method can be matched with an external system and a display device for experiencing AR or VR, namely the system for experiencing AR or VR can receive radio wave signals formed by a signal converter in the contact lens, process and analyze the radio wave signals to obtain a preset picture to be output, and display the preset picture through the display device, so that the AR/VR contact lens can achieve the effect of experiencing virtual reality or picture enhancement; moreover, compared with AR glasses or VR glasses in the prior art, the AR/VR contact lenses provided by the invention can be used for experiencing two scenes, namely AR and VR, and have no heavy feeling of the lens frame, so that the oppressive feeling of the AR glasses or VR glasses in the prior art brought to eyes and the surrounding of the eyes can be eliminated, and the experience effect of an experiencer can be greatly improved.
Drawings
FIG. 1 is a schematic partial cross-sectional view of an AR/VR contact lens in accordance with an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of an AR/VR contact lens in accordance with another embodiment of the invention.
Fig. 3 is a schematic structural view of an AR/VR contact lens in a further embodiment of the invention, where (a) in fig. 3 is a schematic plan view of a near-eye membrane and a first transparent electrode, and (b) in fig. 3 is a cross-sectional view of the AR/VR contact lens.
Fig. 4 is a schematic structural view of an AR/VR contact lens in a further embodiment of the invention, where (a) in fig. 4 is a schematic plan view of a near-eye membrane and a first transparent electrode, and (b) in fig. 4 is a cross-sectional view of the AR/VR contact lens.
FIG. 5 is a schematic cross-sectional view of an AR/VR contact lens in accordance with yet another embodiment of the invention.
FIG. 6 is a schematic diagram of an AR/VR display system in accordance with yet another embodiment of the invention.
FIG. 7 is a flow chart of a structure for making an AR/VR contact lens in accordance with yet another embodiment of the present invention.
FIG. 8 is a flow chart of a structure for making an AR/VR contact lens in accordance with yet another embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail. The following examples are illustrative only and are not to be construed as limiting the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.
In one aspect of the invention, the invention provides an AR/VR contact lens. According to an embodiment of the present invention, referring to FIG. 1, the AR/VR contact lens 100 includes: the far-eye film 10, the near-eye film 30 and the intermediate layer 20 arranged between the far-eye film 10 and the near-eye film 30, wherein the intermediate layer 20 comprises a capacitive sensor and a signal converter electrically connected with the capacitive sensor; the capacitive sensor is used for sensing the variation of capacitance at a preset position detected by the capacitive sensor when an eyeball moves and outputting the variation of the capacitance at the preset position to the signal converter, and the signal converter is used for converting the variation of the capacitance at the preset position into a radio wave signal and sending the radio wave signal. Therefore, the AR/VR contact lens can be matched with an external system for experiencing AR or VR and a display device for use, namely the system for experiencing AR or VR can receive radio wave signals formed by a signal converter in the AR/VR contact lens, obtain a preset picture to be output by processing and analyzing the radio wave signals and display the preset picture through the display device, so that the AR/VR contact lens can realize the effect of experiencing virtual reality or picture enhancement; moreover, compared with AR glasses or VR glasses in the prior art, the AR/VR contact lenses provided by the invention can be used for experiencing two scenes, namely AR and VR, and have no heavy feeling of the lens frame, so that the oppressive feeling of the AR glasses or VR glasses in the prior art brought to eyes and the surrounding of the eyes can be eliminated, and the experience effect of an experiencer can be greatly improved.
When the contact lens is worn, the film layer close to the eyeball is a near-to-eye film, and the film layer far away from the eyeball is a far-to-eye film; the "eye movement" mainly includes the rotation of the eyeball and the contraction and contraction of the pupil.
According to an embodiment of the present invention, the principle of the capacitive sensor detecting the amount of change in capacitance at a predetermined position according to eye movement is: when the eyeball of the human eye observes an object, due to the difference between the distance of the object to be observed and the observation angle, the eyeball may move, such as the rotation of the eyeball and the contraction and expansion of the pupil, different eyeball movements may generate different degrees of pressure and stress to a predetermined position (the predetermined position is changed along with the eyeball movement), the change of the pressure and the stress may cause the near-eye membrane of the AR/VR contact lens to generate mechanical deformation, the deformation may cause the capacitance at the predetermined position in the capacitive sensor to change, and the capacitive sensor outputs the sensed change of the capacitance at the predetermined position to the signal converter. Then, the variable quantity of the capacitance at the preset position is converted into a radio wave signal through a signal converter, then an external system for experiencing AR or VR can receive the radio wave signal, process and analyze the radio wave signal, obtain a preset image to be output according to the visual angle watched by eyes, the rotating direction of the eyeball, the distance of the object to be watched and the like, namely the image to be watched by the eyes in the state, and display the preset image through a display device, thereby realizing the function of experiencing AR or VR. For example, when the eyes look down, the capacitance sensor detects the variation of the capacitance at the predetermined position according to the eyeball motion, the signal sensor converts the variation of the capacitance at the predetermined position into a radio wave signal, and then the external system for experiencing AR or VR can receive the radio wave signal, process and analyze the radio wave signal to obtain a picture corresponding to the downward-looking eyes, and display the picture (i.e. the predetermined picture) through the display device. According to an embodiment of the present invention, in order to prevent the intermediate layer from contacting the eyeball and protect the eyeball from being injured, referring to fig. 2, the outer peripheral edge of the distal membrane 10 and the outer peripheral edge of the proximal membrane 30 both exceed the outer peripheral edge of the intermediate layer 20, and the outer peripheral edges of the distal membrane 10 and the proximal membrane 30 are in sealing contact. Therefore, the contact of the middle layer with the eyeball can be avoided, and the eyeball can be protected from being damaged by the middle layer; moreover, the middle layer can be prevented from being influenced by external environment (such as water vapor, tiny particles and the like), and the use function of the middle layer is further protected. In the embodiment of the present invention, there is no limitation on the specific method for sealing and contacting the outer periphery of the far-eye membrane 10 and the outer periphery of the near-eye membrane 30, and a person skilled in the art can flexibly select the method according to actual requirements, select a hot-pressing process to attach the outer periphery of the near-eye membrane and the outer periphery of the far-eye membrane together, and closely attach the outer periphery of the far-eye membrane 10 and the outer periphery of the near-eye membrane 30 together through the hot-pressing process; the outer periphery of the distal membrane 10 and the outer periphery of the proximal membrane 30 may also be bonded together with glue that does not cause any damage to the eyeball.
According to an embodiment of the present invention, in order to further protect the eyeball, the hardness of the near-eye membrane is smaller than that of the far-eye membrane, or the near-eye membrane is a soft membrane layer, and the far-eye membrane is a hard membrane layer. Therefore, the soft film layer is close to the eyeball, so that the eyeball can be further protected from being injured, and the soft film layer is used as the near-to-eye film, so that the soft film layer can be quickly and sensitively deformed correspondingly when the eyeball moves, and the sensitivity of the capacitance sensor for sensing the capacitance variation can be further improved; the hard film layer is used as a far-eye film, so that the shape stability of the contact lens can be effectively kept, and the AR/VR contact lens can be taken by a user more conveniently.
According to the embodiment of the present invention, there is no particular requirement on the softness of the soft film layer and the hardness of the hard film layer as long as the following conditions are satisfied: the soft film layer has softness enough to enable the near-eye film to deform under the action of eyeball motion, and the hard film layer has hardness enough to keep the far-eye film not to deform under the action of eyeball motion.
According to an embodiment of the present invention, in order to ensure the usability and safety performance of the AR/VR contact lens, the material forming the near-eye film is selected from at least one of polyimide, polyethylene terephthalate and polymethyl methacrylate; the material forming the far-eye film is selected from at least one of polyimide, polyethylene terephthalate and polymethyl methacrylate. Therefore, the hard glasses have better service performance and higher safety. It should be noted that, when the near-eye membrane is a soft membrane layer and the far-eye membrane is a hard membrane layer, the near-eye membrane and the far-eye membrane can be prepared from the same material, and the difference in hardness between the near-eye membrane and the far-eye membrane is realized by changing the manufacturing process or parameter setting, and the specific manufacturing process has no limitation requirement, and a person skilled in the art can flexibly select a conventional technical means according to actual requirements without limitation.
According to an embodiment of the present invention, in order to improve sensitivity of a capacitive sensor to sensing a variation in capacitance at a predetermined position, referring to fig. 3, the capacitive sensor includes: a first transparent electrode 21, the first transparent electrode 21 being disposed on the near-eye film 30; and a second transparent electrode 22, wherein the second transparent electrode 22 is arranged on the far-eye film 10, is opposite to the first transparent electrode 21, and is insulated from the first transparent electrode 21. Therefore, when a human eye watches a picture, according to the difference of the visual angle and the distance of an object to be observed, the eyeball can move to a certain extent, and the eyeball movement can cause the near-eye membrane to deform in different degrees (as mentioned above, the near-eye membrane adopts a soft membrane layer, so that the near-eye membrane can deform sensitively under the action of the eyeball movement), so that the distance between the first transparent electrode and the second transparent electrode changes, and the capacitance between the first transparent electrode and the second transparent electrode is further changed, and thus, the capacitance sensor can sense the variation of the capacitance according to different eyeball movements.
According to the embodiment of the invention, the insulation arrangement mode of the first transparent electrode and the second transparent electrode has no limitation requirement, and a person skilled in the art can flexibly select the insulation arrangement mode according to actual requirements. In some embodiments of the present invention, the first transparent electrode and the second transparent electrode are spaced apart to achieve the purpose of insulation. In addition, in order to realize the requirement of insulation without introducing other insulating materials, and because the near-eye membrane and the far-eye membrane are arranged at intervals, a gap is formed between the first transparent electrode and the second transparent electrode, and in order that the gap does not influence the propagation route of light rays in the AR/VR contact lens, the gap between the first transparent electrode and the second transparent electrode is vacuum.
Embodiments according to the present invention do not further ensure that the first transparent electrode and the second transparent electrode do not contact when the near-eye membrane deforms, and the minimum distance of the gap between the first transparent electrode and the second transparent electrode is 0.2-0.3 mm, such as 0.2 mm, 0.22 mm, 0.24 mm, 0.26 mm, 0.28 mm, or 0.3 mm. Thus, the spacing may be sufficient to ensure that the first transparent electrode and the second transparent electrode do not contact when the near-eye membrane is deformed to maintain the first transparent electrode and the second transparent electrode in a pre-insulating disposition.
According to an embodiment of the present invention, although the first and second transparent electrodes are transparent electrodes, the refractive index and the reflectivity of the first transparent electrode and the second transparent electrode still affect the path of light, and further affects the sight line of the human eye to some extent, in order to prevent the first transparent electrode and the second transparent electrode from affecting the sight line, referring to fig. 3 (a) shows only a plan view of the near-eye membrane 30 and the first transparent electrode 21 provided on the surface thereof, the far-eye membrane 10 and the second transparent electrode 22 provided on the surface thereof are provided in the same manner as the near-eye membrane and the first transparent electrode, and no illustration is given), the far-eye membrane 10 and the near-eye membrane 30 may be each divided into a pupil region 13 and a non-pupil region (excluding the pupil region, i.e., the non-pupil region), and the first transparent electrode 21 and the second transparent electrode 22 are each disposed on the surface of the non-pupil region. Therefore, the influence of the first transparent electrode and the second transparent electrode on the view line of the picture can be avoided. The "pupil area" refers to an area of the AR/VR contact lens corresponding to the pupil of the eyeball when the AR/VR contact lens is worn.
According to an embodiment of the present invention, a material forming the first transparent electrode is selected from indium tin oxide and graphene; the material forming the second transparent electrode is selected from indium tin oxide and graphene. Therefore, the capacitance type sensor has better use performance, and can sensitively detect the variation of the capacitance according to the eyeball motion.
According to an embodiment of the present invention, in order to ensure that the capacitive sensor can detect the variation amount of capacitance at a predetermined position according to the movement of the eyeball (such as upward rotation, downward rotation, left rotation, or right rotation) in different orientations, the first transparent electrode is annularly disposed around the pupil area, and the second transparent electrode is annularly disposed around the pupil area. The following will describe the arrangement of the first transparent electrode in detail as an example:
in some embodiments of the present invention, referring to fig. 3, the first transparent electrode and the second transparent electrode are both sheet electrodes, annularly disposed around the pupil region; in other embodiments of the present invention, the first transparent electrode and the second transparent electrode are both sheet electrodes and are annularly disposed around the pupil region, wherein an edge of at least one of the first transparent electrode and the second transparent electrode (including an edge near the pupil region and an edge far from the pupil region) is gear-shaped; in other embodiments of the present invention, referring to fig. 4, the first transparent electrode 21 includes a plurality of sub-transparent electrodes arranged in a ring shape and spaced apart from each other, and the second transparent electrode is a sheet electrode; in still other embodiments of the present invention, referring to fig. 5, each of the first transparent electrode and the second transparent electrode includes a plurality of sub-transparent electrodes arranged in a ring shape and spaced apart from each other, and preferably, the plurality of sub-transparent electrodes in the first transparent electrode and the plurality of sub-transparent electrodes in the second transparent electrode are arranged in a one-to-one correspondence. Therefore, diversified designs of the first transparent electrode and the second transparent electrode can be realized to meet different design requirements. According to the embodiment of the invention, the arrangement of the sub transparent electrode can enable the capacitive sensor to monitor the variation of the capacitance at the preset position more sensitively.
According to the embodiment of the invention, in order to better convert the variation of the capacitance detected by the capacitive sensor into a radio wave signal, the signal converter comprises the nano antenna, so that the nano antenna has a small volume and a thin thickness, the whole thickness of the AR/VR contact lens cannot be thicker, the variation of the capacitance detected by the capacitive sensor can be well converted into the radio wave signal, and the radio wave signal is transmitted to an external system and equipment, so as to realize the function of the AR or VR contact lens.
According to an embodiment of the present invention, the material forming the nano-antenna is selected from a silver nano-material and a carbon nano-material. Therefore, the service performance is better, and specifically: the silver nano material has no harm to eyes, so that the safety of the eyes can be better ensured, and the requirement on the conductivity of the nano antenna can be met; the carbon nano material can meet the conductivity requirement of the nano antenna, and the preparation process of the carbon nano material is mature, so that the nano antenna can be made thinner. According to the embodiment of the present invention, since the nano-antenna has a small thickness and a small width, the nano-antenna may be disposed on the surface of the near-eye membrane close to the far-eye membrane, or on the surface of the far-eye membrane close to the near-eye membrane, or in the pupillary region, or in the non-pupillary region, as long as the nano-antenna is disposed at a position that does not affect the operation of the sensor.
According to the embodiment of the invention, in order to prevent the nano antenna from being adversely affected when the near-eye membrane is deformed, the nano antenna is electrically connected with the second transparent electrode. Therefore, the arrangement mode can ensure that the conversion of the signals is realized, and the stability and the accuracy of the signal conversion can be further improved.
According to an embodiment of the present invention, in order to ensure the comfort of the eyeball of the user without affecting the overall thickness of the contact lens, the overall thickness of the contact lens is 0.8-1.0mm, wherein the thicknesses of the far-eye film and the near-eye film are both in the micrometer range, the maximum thickness of the gap between the near-eye film and the far-eye film is 0.5 mm-0.7 mm, such as 0.5mm, 0.57mm, 0.59mm, 0.6mm, 0.62mm, 0.64mm, 0.66mm, 0.68mm, or 0.7mm, the thickness of the first transparent electrode is 0.1-0.15 μm, the thickness of the second transparent electrode is 0.1 micrometer-0.15 micrometer, such as 0.1 micrometer, 0.11 micrometer, 0.12 micrometer, 0.13 micrometer, 0.14 micrometer, or 0.15 micrometer, and the thickness of the nanoantenna is 0.1-0.15 μm, such as 0.1 micrometer, 0.11 micrometer, 0.12 micrometer, 0.13 micrometer, 0.14 micrometer, or 0.15 micrometer. Therefore, the requirement on the thickness of the contact lens can be met, and the comfort level of eyes of a user is guaranteed.
In another aspect of the invention, an AR/VR display system is provided. According to an embodiment of the present invention, referring to fig. 6, the display system includes: the AR/VR contact lens 100 described above; a wireless signal receiving system 200, the wireless signal receiving system 200 is used for receiving the radio wave signal 110 output by the converter in the AR/VR contact lens 100; the signal processing system 300, the signal processing system 300 is electrically connected with the wireless signal receiving system 200, and is used for converting the wireless signal 110 into an electrical signal; the image output system 400, the image output system 400 is electrically connected with the signal processing system 300, and outputs a predetermined picture according to the electrical signal; and the display device 500, wherein the display device 500 is electrically connected with the image output system 400 and is used for displaying a preset picture. Therefore, an experiencer can experience scenes of virtual reality or picture enhancement only by wearing the AR/VR contact lenses and using the wireless signal receiving system, the signal processing system, the image output system, the display device and other systems and devices in a matching mode.
According to the embodiment of the invention, the specific process of experiencing an AR or VR scene by using the AR/VR display system is as follows: an AR or VR scene to be watched is set in advance through an image output system, after an experiencer wears an AR/VR contact lens, a capacitance sensor in the AR/VR contact lens senses the variation of capacitance at a preset position detected by the capacitance sensor according to eyeball movement (such as upward eyeball movement) and transmits the variation of the capacitance to a signal converter, the signal converter converts the variation of the capacitance into a radio wave signal and outputs the radio wave signal, a radio signal receiving system receives the radio wave signal output by the capacitance variation contact lens at the preset position and transmits the radio wave signal to a signal processing system, the signal processing system processes and edits the radio wave signal to form a new calculation language, namely, an electrical signal, and then the signal processing system transmits the electrical signal to the image output system, the image output system analyzes the condition of the initial eyeball movement (analyzes the initial upward eyeball movement) according to the electrical signal, further outputs a preset picture to be watched by the eyeball under the state (namely, the picture to be watched by the upward eyeball rotation), and displays the preset picture through the display device, so that the AR or VR scene can be experienced.
According to the embodiment of the present invention, there is no limitation on the specific types of the wireless signal receiving system, the signal processing system, the image output system, and the display device, and those skilled in the art can flexibly select them according to the actual requirements, and there is no limitation here as long as the above functions can be implemented.
In yet another aspect of the invention, the invention provides a method of making the AR/VR contact lens described above. According to an embodiment of the present invention, a method of making a contact lens comprises:
s100: an intermediate layer is formed on a surface of at least one of the periocular substrate and the distal ocular substrate.
According to an embodiment of the invention, the intermediate layer comprises a capacitive sensor and a signal converter, the step of forming the capacitive sensor and the signal converter comprising:
s1: forming a first transparent electrode on a first surface of a periocular substrate;
s2: and forming a second transparent electrode on the second surface of the far-eye film substrate, wherein the first transparent electrode and the second transparent electrode jointly form the capacitive sensor.
According to an embodiment of the present invention, the method for forming the first transparent electrode and the second transparent electrode includes, but is not limited to, chemical vapor deposition or physical vapor deposition, and specifically, referring to fig. 7 (taking the periocular substrate and the first transparent electrode as an example, the step of forming the second transparent electrode is the same as the first transparent electrode, and is not shown):
cutting to obtain the near-eye membrane substrate 3 with the required size, and cleaning the first surface 31 of the near-eye membrane substrate 3; forming a lithographic pattern 40 on the first surface 31; depositing a transparent electrode sheet 23 on the first surface and on the surface of the photolithographic pattern by a Plasma Enhanced Chemical Vapor Deposition (PECVD) process in a vacuum chamber; and removing the photoetching pattern by using etching liquid, simultaneously removing the transparent electrode plate on the surface of the photoetching pattern, and cleaning to obtain the first transparent electrode 21.
S3: a nano-antenna is formed on the first surface or on the second surface to obtain a signal converter (not shown in the figure).
Methods of forming nano-antennas according to embodiments of the present invention include, but are not limited to, chemical vapor deposition, physical vapor deposition (such as magnetron sputtering), or vacuum evaporation. Therefore, the process is mature and convenient to implement.
S200: the far-eye film substrate (not shown) and the near-eye film substrate 3 obtained after the formation of the intermediate layer are subjected to film-forming pressing so that the far-eye film substrate and the near-eye film substrate have shapes matching with the eyeball, and the structural schematic diagram refers to fig. 8. Specifically, the method comprises the following steps: placing the near-to-eye membrane substrate 3 obtained in the step S100 into a groove in a film-forming pressing device 50, wherein the first transparent electrode 21 is placed facing the groove, and pressing to obtain a near-to-eye membrane; the base material of the far-eye film obtained in step S100 is placed in a groove in the film-forming pressing device 50, wherein the second transparent electrode is placed opposite to the groove, and the far-eye film (not shown in the figure) is obtained by pressing.
S300: the outer peripheral edge of the film-forming pressed far-eye film substrate and the outer peripheral edge of the near-eye film substrate are bonded together, and a curing molding treatment is performed to obtain the AR/VR contact lens, and the schematic structural diagram refers to (b) in fig. 3. The specific process of attaching the outer periphery of the film-formed and pressed far-eye film substrate and the outer periphery of the near-eye film substrate together can adopt a hot pressing process, and the curing method can adopt ultraviolet curing, so that the intermediate layer can be tightly sealed between the near-eye film and the far-eye film.
According to the embodiment of the invention, the method for manufacturing the AR/VR contact lens is simple, easy to operate, mature in process and easy for industrial mass production; the AR/VR contact lens manufactured by the method can be matched with an external system for experiencing AR or VR and a display device for use, namely the system for experiencing AR or VR can receive radio wave signals formed by a signal converter in the AR/VR contact lens, process and analyze the radio wave signals to obtain a preset picture to be output, and display the preset picture through the display device, so that the AR/VR contact lens can realize the effect of experiencing virtual reality or picture enhancement; moreover, compared with AR glasses or VR glasses in the prior art, the AR/VR contact lenses provided by the invention can be used for experiencing two scenes, namely AR and VR, and have no heavy feeling of the lens frame, so that the oppressive feeling of the AR glasses or VR glasses in the prior art brought to eyes and the surrounding of the eyes can be eliminated, and the experience effect of an experiencer can be greatly improved.
According to the embodiments of the present invention, the above-mentioned method for manufacturing an AR/VR contact lens can be used for manufacturing the above-mentioned AR/VR contact lens, wherein the requirements for the arrangement of the near-eye membrane, the far-eye membrane, the signal converter, the capacitive sensor, and the like, and the requirements for the formation materials, and the like, are the same as those described above, and thus, the description thereof is omitted.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An AR/VR contact lens, comprising:
the eye protection device comprises a far-eye membrane, a near-eye membrane and an intermediate layer arranged between the far-eye membrane and the near-eye membrane, wherein the intermediate layer comprises a capacitive sensor and a signal converter electrically connected with the capacitive sensor;
the capacitive sensor includes: a first transparent electrode disposed on the near-eye membrane; a second transparent electrode disposed on the far-eye membrane, opposite to the first transparent electrode, and insulated from the first transparent electrode, wherein the far-eye membrane and the near-eye membrane are divided into a pupil region and a non-pupil region, the first transparent electrode and the second transparent electrode are disposed in the non-pupil region, a gap is formed between the first transparent electrode and the second transparent electrode, the gap between the first transparent electrode and the second transparent electrode is a vacuum, and the minimum distance between the first transparent electrode and the second transparent electrode is 0.2-0.3 mm,
the capacitive sensor is used for sensing the variation of capacitance at a preset position detected by the capacitive sensor during eyeball movement and outputting the variation of the capacitance at the preset position to the signal converter, and the signal converter converts the variation of the capacitance at the preset position into a radio wave signal and sends the radio wave signal.
2. The AR/VR contact lens of claim 1, wherein an outer perimeter of the distal membrane and an outer perimeter of the proximal membrane each extend beyond an outer perimeter of the intermediate layer, and wherein the outer perimeters of the distal membrane and the proximal membrane are in sealing contact.
3. The AR/VR contact lens of claim 1, wherein a hardness of the near-eye membrane is less than a hardness of the far-eye membrane.
4. The AR/VR contact lens of claim 1, wherein the first transparent electrode is annularly disposed about the pupillary region and the second transparent electrode is annularly disposed about the pupillary region.
5. The contact lens of claim 1, wherein the near-eye membrane is formed from a material selected from the group consisting of at least one of polyimide, polyethylene terephthalate, and polymethyl methacrylate; the material forming the far eye film is selected from at least one of polyimide, polyethylene terephthalate and polymethyl methacrylate; the material forming the first transparent electrode is selected from indium tin oxide and graphene; the material forming the second transparent electrode is selected from indium tin oxide and graphene.
6. The AR/VR contact lens of claim 1, wherein the signal converter comprises a nano-antenna formed from a material selected from a group consisting of silver nano-materials and carbon nano-materials.
7. The AR/VR contact lens of claim 6, wherein the nano-antenna is electrically connected to the second transparent electrode.
8. The AR/VR contact lens of claim 6, wherein the first transparent electrode has a thickness of 0.1-0.15 microns; the thickness of the second transparent electrode is 0.1-0.15 micron; the thickness of the nano antenna is 0.1-0.15 micron.
9. An AR/VR display system, comprising:
the AR/VR contact lens of any one of claims 1-8;
a wireless signal receiving system for receiving the radio wave signal output by the signal converter in the AR/VR contact lens;
the signal processing system is electrically connected with the wireless signal receiving system and is used for converting the wireless signals into electrical signals;
the image output system is electrically connected with the signal processing system and outputs a preset picture according to the electrical signal;
and the display device is electrically connected with the image output system and is used for displaying the preset picture.
10. A method of making the AR/VR contact lens of any of claims 1-8, comprising:
forming an intermediate layer on a surface of at least one of the periocular substrate and the distal ocular substrate;
performing film forming pressing on the far-eye film substrate and the near-eye film substrate obtained after the intermediate layer is formed, so that the far-eye film substrate and the near-eye film substrate have shapes matched with eyeballs;
bonding the outer peripheral edge of the far-eye film substrate and the outer peripheral edge of the near-eye film substrate after film forming and pressing, and performing curing molding treatment to obtain the AR/VR contact lens,
wherein the intermediate layer comprises a capacitive sensor and a signal converter, the step of forming the capacitive sensor comprising:
forming a first transparent electrode on a first surface of the periocular substrate;
forming a second transparent electrode on a second surface of the distal ocular membrane substrate, the first transparent electrode and the second transparent electrode collectively constituting the capacitive sensor,
the far-eye membrane and the near-eye membrane are divided into a pupil area and a non-pupil area, the first transparent electrode and the second transparent electrode are arranged in the non-pupil area, a gap is formed between the first transparent electrode and the second transparent electrode, the gap between the first transparent electrode and the second transparent electrode is vacuum, and the minimum distance between the first transparent electrode and the second transparent electrode is 0.2-0.3 mm.
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