Self-adaptive glasses and control method of self-adaptive glasses pair

Abstract

The invention relates to a pair of adaptive eyeglasses (1) comprising a first lens (100a), a second lens (100b), first electronic control means (40) comprising a first wireless communication device (45) and second electronic control means (50) comprising a second wireless communication device (55); the first wireless communication device (45) and the second wireless communication device (55) are configured to exchange data sets therebetween; the first electronic control device (40) and the second electronic control device (50) are further configured to change the focal power of the first lens (100a) and the focal power of the second lens (100b), respectively, according to the data set. The invention also relates to a method for controlling such an adaptive eyeglass pair (1).

Description

Technical Field

[0001] The present invention relates to a pair of adaptive glasses including two lenses, and a control method for controlling such a pair of adaptive glasses. Background Art

[0002] The present invention relates to the field of adaptive glasses. Generally, such adaptive glasses are used in the field of optical correction, especially for patients with eye accommodation problems (presbyopia, accommodative spasm, after cataract surgery, etc.). However, this application is not restrictive, as such adaptive glasses can be used, for example, in the field of virtual reality or augmented reality.

[0003] The prior art has proposed various solutions to compensate for the insufficient accommodation ability of presbyopic patients, such as glasses, contact lenses or intraocular lenses. Patients can wear bifocal glasses, which include bifocal lenses with inserts at the lower part that ensure near vision when the user looks down. These bifocal glasses are essentially reading glasses, and their disadvantage is the poor quality of intermediate vision. Progressive lenses can also be chosen, which achieve continuous correction from the lower part (for reading) to the upper part and allow a certain intermediate vision. However, the intermediate vision is only clear within a narrow area called the vision "channel", while the outside is blurred. In addition, the limitation of progressive lenses is that they severely distort the image by bending straight lines. Considering that for a person with fully developed presbyopia, 3 diopters are required to obtain perfect vision between hyperopia and myopia, there are still problems with the image quality of progressive lenses.

[0004] For contact lenses or intraocular lenses, there is a treatment method called "monovision", which adjusts the contact lenses for the left and right eyes at two different distances. This is obviously a compromise and may cause discomfort, but the user can wear compensatory glasses for a given fixed object distance (reading, medium distance or far distance). Another option is based on so-called multifocal optics: projecting multiple images corresponding to close and far distances onto the retina. The multifocal scheme allows reading and viewing at close and far distances, but the image quality will always decline. When using this scheme, blurred images may cause problems, such as when driving at night.

[0005] Finally, it is known from the prior art that using adaptive glasses including electronic components allows the optical power of corrective lenses to be corrected. A large proportion of electronic glasses (or "Smart eye-wears" according to the established Anglo-Saxon terminology) or virtual reality or augmented reality headsets place all or part of the electronic components in one or more temple arms of the glasses. In some applications, such active functions are simulated so as to perform projection or optical functions only on one side. However, other more complex glasses require both eyes to perform optical functions in a coordinated manner simultaneously (for example, focusing for presbyopia). In the case of presbyopia, it is desirable to synchronously adjust the focusing correction function for both eyes. In the case of video or music content, it is clearly desirable for the content on both sides of the pair of glasses to be perfectly synchronized. One solution to obtain such synchronization is to use separate wires in the form of conductive sheets or conductive tracks on a flexible element to transmit information or optical power from one side of the pair of glasses to the other side.

[0006] Although this structure is satisfactory as it allows the optical power and information to be transmitted from one side of the pair of glasses to the other side, it makes it difficult to precisely balance the electrical quality of the embedded electronic components. In addition, the design and production of the glasses model may become complex due to the positioning and connection of the electronic components embedded in the glasses, especially when the information or optical power is transmitted to the front through conductors. Summary of the Invention

[0007] The object of the present invention is to propose a solution to solve all or part of the above problems.

[0008] This object can be achieved by implementing the following: a pair of adaptive glasses, comprising:

[0009] - A front part, including a first lens and a second lens;

[0010] - A first temple arm, extending between a first free end and a first connection end, and the first temple arm mates with the front part at the first connection end;

[0011] - A second temple arm, separated from the first temple arm, extending between a second free end and a second connection end, and the second temple arm mates with the front part at the second connection end on the opposite side of the first temple arm relative to the front part;

[0012] - A first electronic control device, including a first computer, a first battery, and a first wireless communication device;

[0013] - A second electronic control device, separated from the first electronic control device, including a second computer, a second battery, and a second wireless communication device.

[0014] The first wireless communication device and the second wireless communication device are configured to exchange data sets with each other, which include at least one parameter selected from the following: at least the distance between the adaptive spectacle pair and an external object, the focusing distance, a command of a user of the adaptive spectacle pair, the dioptric power value of the first lens, and the dioptric power value of the second lens. The first electronic control device and the second electronic control device are further configured to change the dioptric power of the first lens and the dioptric power of the second lens respectively according to the data set.

[0015] The above settings allow for an adaptive spectacle pair with variable dioptric power to be proposed, wherein the coordination between the first lens and the second lens is carried out by wireless communication devices. Thus, the correction provided by the lenses (which can be variable ophthalmic lenses for example) can be adjusted and coordinated without the need for wires passing through the front.

[0016] Generally, when referring to the "dioptric power" applied to the first lens, applied to the second lens, or the synchronous dioptric power, it should be understood as referring to the dioptric power increased by the first lens or the second lens. In other words, the terms "dynamic dioptric power" or "increased dioptric power" or "dynamic increase" can also be used instead of the term "dioptric power".

[0017] The adaptive spectacle pair may also have one or more of the following features, which are adopted individually or in combination.

[0018] According to one embodiment, the data set includes any data or parameter useful for the function of the electro - variable lens, such as: eye convergence or pupil size, the pupil position of the wearer of the adaptive spectacle pair, brightness data, environmental perception, an indirect measurement of temperature.

[0019] According to one embodiment, the first electronic control device and the second electronic control device are configured to change the dioptric power of the first lens and the dioptric power of the second lens respectively according to the data set by using a liquid - crystal technology.

[0020] According to one embodiment, the electronic control device is configured to change the dioptric power of at least one of the first lens and the second lens through a correction member including liquid crystal, and the correction member is configured to allow the orientation of the liquid crystal by applying an electric field to change the refractive index of at least one of the lenses.

[0021] Those skilled in the art may refer to, for example, the following document: "Li, Guoqiang, et al., 'Switchable electro-optic diffractive lens with high efficiency for ophthalmic applications.' Proceedings of the National Academy of Sciences of the United States of America 103.16 (2006): 6100-6104", which describes a technique for changing the optical power of a lens using liquid crystals.

[0022] According to one embodiment, at least one lens selected from the first lens and the second lens is an ophthalmic lens.

[0023] According to one embodiment, the optical power value of the first lens exchanged between the first wireless communication device and the second wireless communication device is determined by a computer selected from the first computer and the second computer. For example, the optical power value of the first lens may be proportional to the reciprocal of the distance between the first temple and the external object.

[0024] According to one embodiment, the optical power value of the second lens exchanged between the first wireless communication device and the second wireless communication device is determined by a computer selected from the first computer and the second computer. For example, the optical power value of the second lens may be proportional to the reciprocal of the distance between the second temple and the external object.

[0025] According to one embodiment, the optical power value of the second lens is equal to the optical power value of the first lens.

[0026] For example, the optical power values of the first lens and the second lens may be proportional to the reciprocal of the minimum distance between the distance separating the first temple from the external object and the distance separating the second temple from the same or another external object. In the specific case of an ophthalmic lens, the result of calculating the reciprocal of the distance expressed in meters may be limited by the patient's add power, which is expressed in diopters. The patient's add power quantifies their need for optical power correction during accommodation and represents the progression of presbyopia. Generally, a low add power indicates the onset of presbyopia, while a high power (3D) indicates the end of the presbyopia progression.

[0027] According to one embodiment, the adaptive spectacle pair is configured to correct presbyopia.

[0028] According to one embodiment, the adaptive spectacle pair is a virtual reality or augmented reality headset.

[0029] It can be understood that the above settings allow the first wireless communication device and the second wireless communication device to communicate with each other without necessarily being connected to elements external to the glasses, such as a smartphone or any other type of control unit.

[0030] According to one embodiment, the adaptive glasses pair is symmetric about a plane passing through the front nose. Accordingly, any technical features of the first temple, the first lens, and the first electronic control device can be applied to the second temple, the second lens, and the second electronic control device.

[0031] Generally, the first electronic control device is disposed on the first temple, and the second electronic control device is disposed on the second temple.

[0032] In this way, the first temple and the second temple can operate in an energy-autonomous manner. This allows for providing a pair of adaptive glasses in which each lens is controlled by a related electronic control device. Specifically, in the case where data sets can no longer be exchanged between the first wireless communication device and the second wireless communication device, the adaptive glasses pair can continue to operate in a degraded mode, or each temple of the adaptive glasses pair is autonomous.

[0033] Advantageously, the arrangement of the first electronic control device on the first temple and the arrangement of the second electronic control device on the second temple allow for designing more types of styles for the front, especially when it comes to the front nose between the first lens and the second lens disposed at the user's nose. In fact, setting connection lines in the front places restrictions on the material, shape, and attachments of the nose. Therefore, the adaptive glasses pair does not have such restrictions.

[0034] In addition, the arrangement of the first electronic control device on the first temple and the arrangement of the second electronic control device on the second temple allow for ensuring a good balance of the electrical quality between the first electronic control device and the second electronic control device.

[0035] According to one embodiment, at least one lens selected from the first lens and the second lens includes:

[0036] - A main glass, including a first transparent material and having a first main surface and a second main surface, the main glass being configured to transmit light between the first main surface and the second main surface;

[0037] - A secondary glass, including a second transparent material and having a first secondary surface and a second secondary surface, the secondary glass being configured to transmit light between the first secondary surface and the second secondary surface;

[0038] - A main cavity, defining a main volume between the second main surface and the first secondary surface; and

[0039] - A membrane, including a deformable part, the deformable part being at least partially contained in the main cavity and completely separating the main cavity into at least a first lens cavity and a second lens cavity. The first lens cavity is configured to include at least one main fluid, and the second lens cavity is configured to include at least one secondary fluid. The first lens cavity is between the second main surface and the deformable part, and the second lens cavity is between the deformable part and the first secondary surface.

[0040] According to one embodiment, those skilled in the art can infer the overall structure and operation of the at least one lens from the document WO2018 / 007425.

[0041] According to one embodiment, the at least one lens selected from the first lens and the second lens includes: a main fluid channel, including a main pipe configured to convey the main fluid and leading to the first lens cavity; and a secondary fluid channel, including a secondary pipe configured to convey the secondary fluid and leading to the second lens cavity.

[0042] According to one embodiment, an electronic control device is configured to change the optical power of the at least one lens selected from the first lens and the second lens through a fluid displacement member, and the fluid displacement member is configured to:

[0043] - Allow the main fluid to flow through the main fluid channel into or out of the first lens cavity; and / or

[0044] - Allow the secondary fluid to flow through the secondary fluid channel into or out of the second lens cavity.

[0045] According to one embodiment, the fluid displacement member is an electrostatic drive device of the type described in the embodiment of document WO2018 / 041866.

[0046] According to one embodiment, the adaptive eyewear accessory includes at least one measurement system configured to detect the presence of an external object and transmit a distance value between the at least one measurement system and the external object to at least one electronic control device selected from the first electronic control and control device and the second electronic control device.

[0047] According to one embodiment, the data set includes the distance values separated between the measurement system and the external object.

[0048] According to one embodiment, the data set includes an estimated value of the focusing distance. For example, such an estimated value of the focusing distance can be determined by an eye tracking system (or in the established Anglo-Saxon term "Eye-Tracking").

[0049] According to one embodiment, the at least one measurement system is a time-of-flight sensor (or "Time of Flight", ToF according to the established Anglo-Saxon terminology).

[0050] According to one embodiment, the at least one measurement system is a distance sensor.

[0051] According to one embodiment, the at least one measurement system includes at least one perspective sensor configured to determine a distance value separating the at least one measurement system from the external object by means of an angle measurement.

[0052] According to one embodiment, at least one measurement system is provided on at least one connection end selected from the first connection end and the second connection end.

[0053] According to one embodiment, the adaptive spectacle frame includes: a first measurement system provided on the first temple, for example at the first connection end; and a second measurement system provided on the second temple, for example at the second connection end.

[0054] According to one embodiment, the measurement system is configured to detect the presence of an external object when the external object is disposed within the detection volume of the measurement system. For example, the detection volume is delimited by a cone whose apex coincides with the measurement system and whose guiding line points in the observation direction when using the adaptive spectacle frame. In other words, the detection volume faces the front of the adaptive spectacle frame.

[0055] According to one embodiment, the first electronic control device and the first measurement system are provided on the first temple, and the second electronic control device and the second measurement system are provided on the second temple, such that there are no electronic components on the front.

[0056] In this way, spectacle manufacturers can design and conceive new frames for the adaptive spectacle frame while retaining the possibility of controlling the lenses by means of the first and second electronic control devices provided on the first and second temples.

[0057] According to one embodiment, at least a part of the first temple is configured to pivot relative to the front by means of a first hinge, at least a part of the second temple is configured to pivot relative to the front by means of a second hinge, a first wireless communication device and a second wireless communication device are respectively electrically connected to a first antenna and a second antenna, the first antenna and the second antenna being configured to allow the exchange of data sets between the first wireless communication device and the second wireless communication device; the first antenna is included in the first hinge and the second antenna is included in the second hinge.

[0058] According to one embodiment, the first antenna and the second antenna are respectively provided at the first connection end and the second connection end.

[0059] In this way, very low radio power can be used to exchange data sets to establish communication between the first wireless communication device and the second wireless communication device. In addition, the positioning of the first antenna and the second antenna at the front minimizes the amount of waves absorbed by the user's head of the pair of adaptive glasses. Generally, the sufficient power radiated by the first antenna or the second antenna is about 50 μW, which is several orders of magnitude lower than the current standard transmission power.

[0060] Advantageously, including the first antenna in the first hinge allows for simplification of the construction of the first wireless communication device.

[0061] According to one embodiment, the first computer includes a first microcontroller.

[0062] According to one embodiment, the second computer includes a second microcontroller.

[0063] According to one embodiment, at least one antenna selected from the first antenna and the second antenna is electrically connected to at least one electronic control device selected from the first electronic control device and the second electronic control device through a flexible circuit to allow transmission of data sets.

[0064] According to one embodiment, the first hinge and the second hinge comprise a metallic material.

[0065] According to one embodiment, the first hinge and the second hinge have an elongated shape along an axis parallel to the hinge axis such that the first hinge is parallel to the second hinge.

[0066] Therefore, advantageously, the fact that the first hinge and the second hinge are positioned as two parallel segments separated by a few centimeters allows for optimization of the coupling between the first antenna and the second antenna.

[0067] According to one embodiment, the first hinge forms the first antenna, and / or the second hinge forms the second antenna.

[0068] Therefore, it is well understood that the first hinge and / or the second hinge is used as an antenna to allow for data exchange between the first wireless communication device and the second wireless communication device. Thus, the design of the pair of adaptive glasses is simplified.

[0069] According to one embodiment, the first antenna is provided at the first connection end, and the second antenna is provided at the second connection end.

[0070] According to one embodiment, the first wireless communication device and the second wireless communication device are configured to exchange data sets therebetween through a wireless transmission technology. For example, the wireless transmission technology includes Bluetooth Low Energy, near-field magnetic communication, near-field communication, ultrasonic waves, electromagnetic waves of other frequencies, or any other means.

[0071] According to one embodiment, at least one electronic control device selected from the first electronic control device and the second electronic control device includes a user interface configured to receive at least one command from a user of the adaptive eyewear pair, and the at least one command is configured to be included in a data set.

[0072] The object of the present invention can also be achieved by implementing a control method for controlling an adaptive eyewear pair of the above type, and the control method includes:

[0073] - A receiving step, in which a data set is received by at least one electronic control device selected from the first electronic control device and the second electronic control device, and the data set includes at least one parameter selected from the following: the distance between the adaptive eyewear pair and an external object, the focusing distance, a user command of the adaptive eyewear pair, the optical power value of the first lens, and the optical power value of the second lens;

[0074] - An exchanging step, in which the data set is exchanged between the first wireless communication device and the second wireless communication device by a wireless transmission technology;

[0075] - An optical power correction step, in which the optical power of the first lens and the optical power of the second lens are corrected according to the data set.

[0076] The above arrangement allows for the provision of a control method for controlling an adaptive eyewear pair so as to adapt the correction provided by the eyewear pair with respect to the data set received by the adaptive eyewear pair. This method particularly allows for the correction of presbyopia or the coordination of vision provided by virtual reality glasses. In the case of optical correction, the advantage of this method is that it allows for the optical correction of the two ophthalmic lenses in a coordinated manner.

[0077] The control method may also have one or more of the following features, which are employed individually or in combination.

[0078] According to one embodiment, during the optical power correction step, the optical power of at least one lens selected from the first lens and the second lens is corrected by applying an electric field to change the refractive index of the at least one lens.

[0079] According to one embodiment, the exchanging step includes the following steps, which may be implemented simultaneously or non-simultaneously:

[0080] - A first sending step, in which the first wireless communication device sends at least a first parameter of the data set to the second wireless communication device;

[0081] - A second sending step, in which the second wireless communication device sends at least one second parameter of the data set to the first wireless communication device;

[0082] - A first receiving step, in which a first wireless communication device receives the at least one second parameter of a data set transmitted by a second wireless communication device;

[0083] - A second receiving step, in which a second wireless communication device receives the at least one first parameter of a data set transmitted by a first wireless communication device.

[0084] According to one embodiment, an optical power correction step is implemented to make the optical power values of the first lens and the second lens tend to the same optical power value. In this way, the optical correction applied to the two lenses at the end of the optical power correction step is the same, thereby improving the user's viewing comfort.

[0085] According to one embodiment, the control method includes a step of determining a synchronous optical power, whereby the optical power correction step includes correcting the optical powers of the first lens and the second lens such that the optical powers of the lenses are equal to the synchronous optical power thus determined.

[0086] According to one embodiment, the step of determining the synchronous optical power includes at least one of the following steps:

[0087] - A first calculation step that calculates a first desired optical power value, which is equal to the reciprocal of the first distance between the adaptive spectacle frame and an external object;

[0088] - A second calculation step that calculates a second desired optical power value, which is equal to the reciprocal of the second distance between the adaptive spectacle frame and the external object;

[0089] - A synchronous optical power selection step, in which the synchronous optical power is determined such that it is equal to the maximum value of the first desired optical power value and the second desired optical power value.

[0090] According to one embodiment, the optical power correction step is implemented within a correction period that is strictly less than 2 s, in particular less than or equal to 1 s.

[0091] In this way, the optical powers of the two lenses can be synchronized within a correction period comparable to the adaptation time of the focus or the convergence time of the eyes.

[0092] According to one embodiment, during the optical power correction step, the optical power of at least one lens selected from the first lens and the second lens is corrected by deforming the deformable part of the membrane to a correction position, and the correction position corresponds to the deformation of the deformable part, thereby changing the volume of the first lens cavity and the volume of the second lens cavity.

[0093] According to one embodiment, the optical power correction step is implemented such that the optical power of the first lens is substantially equal to the optical power of the second lens.

[0094] According to one embodiment, the deformation of the deformable portion of the membrane is achieved by a change in capacitance between two electrodes offset with respect to the membrane. Thus, the optical power correction step may include a capacitance value establishment step, in which a capacitance change value is determined. For example, the capacitance change value that needs to be corrected may be determined by a correspondence table recorded in the memory of the first electronic control device and / or the second electronic control device. The correspondence table is configured to associate the optical power value to be applied to the lens with the capacitance value to be applied between the two electrodes. Then, the step of correcting the optical power may include the step of applying the capacitance change value between the two electrodes so as to cause displacement of the deformable portion of the membrane.

[0095] According to one embodiment, the control method includes a step of updating the correspondence table.

[0096] According to one embodiment, the adaptive spectacle frame includes at least one measurement system configured to detect the presence of an external object, wherein the step of receiving the data set includes:

[0097] - a measurement step, in which the distance between the measurement system and the external object is measured, and

[0098] - a communication step, in which the measurement system transmits the distance to at least one electronic control device selected from the first electronic control device and the second electronic control device, and the data set thus includes the distance.

[0099] According to one embodiment, the first electronic control device is electrically connected to the first measurement system, the second electronic control device is electrically connected to the second measurement system, and the measurement step includes: a first measurement step, in which the first distance between the first measurement system and the external object is measured; and a second measurement step, in which the second distance between the second measurement system and the external object is measured; the communication step thus includes transmitting the first distance from the first measurement system to the first electronic control device and transmitting the second distance from the second measurement system to the second electronic control device, and the data set thus includes the first distance and the second distance.

[0100] Thus, advantageously, the optical power correction step not only allows the correction performed in this step to always remain synchronized between the first lens and the second lens, but also allows the exchange of a data set including data measured by the first measurement system and the second measurement system respectively provided on the first temple and the second temple. This is particularly advantageous for improving the correction of the adaptive spectacle frame because the first measurement system and the second measurement system measure different data on the first temple and the second temple. In a collaborative manner, measuring the first distance by the first measurement system and measuring the second distance by the second measurement system allows for measurement redundancy, thereby making the measurement more reliable.

[0101] According to one embodiment, the control method further includes a data encryption step implemented before the exchange step, wherein the data set is encrypted and the exchange step thus includes exchanging the encrypted data set between the first wireless communication device and the second wireless communication device.

[0102] In this way, it is possible to avoid two pairs of adaptive glasses close to each other from exchanging their data sets with each other. In addition, it is also possible to prevent any other detection system from accessing the data set. BRIEF DESCRIPTION OF THE DRAWINGS

[0103] Other aspects, objects, advantages and features of the present invention will become better apparent by reading the following detailed description of the preferred embodiments given by way of non-limiting examples and with reference to the accompanying drawings, in which:

[0104] Figure 1 is a top view schematic diagram of a pair of adaptive glasses according to an embodiment of the present invention.

[0105] Figure 2 is a perspective view schematic diagram of a pair of adaptive glasses according to an embodiment of the present invention.

[0106] Figure 3 is a cross-sectional view schematic diagram of a lens of a pair of adaptive glasses according to an embodiment of the present invention.

[0107] Figure 4 is a schematic diagram of a fluid displacement member according to an embodiment of the present invention.

[0108] Figure 5 is a schematic diagram of a control method according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0109] In the drawings and the rest of the specification, the same reference numerals represent the same or similar elements. In addition, for the sake of clarity of the drawings, the various elements are not drawn to scale. Furthermore, different embodiments and variants are not mutually exclusive and can be combined with each other.

[0110] As Figure 1 and Figure 2 shown, the present invention relates to a pair of adaptive glasses 1. The pair of adaptive glasses 1 includes a front face 3, which includes a first lens 100a and a second lens 100b. The first lens 100a is generally contained within a first ring, which is connected to a second ring including the second lens 100b by a bridge portion that forms all or part of the nose portion 5 of the front face 3.

[0111] The adaptive spectacle sub - assembly 1 further includes a first temple 10 that extends between a first free end portion 11 (also referred to as a first sleeve) and a first connecting end portion 12. The first temple 10 mates with the front 3 at the first connecting end portion 12. For example, at least a portion of the first temple 10 is configured to pivot relative to the front 3 via a first hinge 14. More specifically, the entirety of the first temple 10 can be pivotally mated with the front 3 via the first hinge 14. The first hinge 14 includes a first tenon that is fixed to the outer end of a first ring that is opposite the nose portion 5 relative to a second ring. The adaptive spectacle sub - assembly 1 further includes a second temple 30 that is separated from the first temple 10 and extends between a second free end portion 31 (also referred to as a second sleeve) and a second connecting end portion 32. The second temple 30 then mates with the front 3 at the second connecting end portion 32 on the opposite side of the first temple 10 relative to the front 3. In the same manner as the first temple 10, the second temple 30 can be pivotally mated with the front 3 via a second hinge 34. For example, the second hinge 34 can include a second tenon that is fixed to the outer end of a second ring that is opposite the nose portion 5 relative to the first ring. Generally, the first hinge 14 and / or the second hinge 34 have a relatively large size of about several centimeters and contain a metallic material.

[0112] As Figure 1 shown, the adaptive spectacle sub - assembly 1 can be symmetric about a plane marked "X" that passes through the nose portion 5 of the front 3. Thus, in the remainder of the specification, any technical features of the first temple 10 or elements associated therewith and the first lens 100a can be applied to the second temple 30 and the second lens 100b.

[0113] Generally, the first electronic control device 44 and the second electronic control device 45 are configured to change the optical power of the first lens 100a and the optical power of the second lens 100b respectively according to the data set via a correction member 701 or a fluid displacement member 700.

[0114] Thus, according to a first variant, the electronic control devices 44, 45 are configured to change the optical power of at least one lens selected from the first lens 100a and the second lens 100b via a correction member 701 that includes liquid crystal. The correction member 701 can be particularly configured to allow the orientation of the liquid crystal by applying an electric field to change the refractive index of the at least one lens.

[0115] Those skilled in the art can refer to, for example, the following document: "Li, Guoqiang, et al., 'Switchable electro-optic diffractive lens with high efficiency for ophthalmic applications.' Proceedings of the National Academy of Sciences of the United States of America 103.16 (2006): 6100-6104", which describes a technique for changing the optical power of a lens using liquid crystals.

[0116] According to the second variant example, as Figure 3 shown, at least one lens selected from the first lens 100a and the second lens 100b is an ophthalmic lens corresponding to one of the embodiments described in Document WO2018 / 007425.

[0117] Generally, the first lens 100a and the second lens 100b have the same structure and include a main glass 120, a sub-glass 160, a main cavity 140, a film 400, a main fluid, and a sub-fluid.

[0118] The main glass 120 may include a first transparent material and have a first main surface 210 and a second main surface 220. These surfaces may be configured to transmit light from one side or end to the other side or end. More precisely, the main glass 120 may be configured to transmit light from the first main surface 210 to the second main surface 220 through the first transparent material. The light may propagate further and may pass through the main cavity 140 and the film 400 to reach the sub-glass 160. The sub-glass 160 may include a second transparent material and may have a first sub-surface 610 and a second sub-surface 620. These surfaces may also be configured to transmit light from one side or end to the other side or end. More precisely, the sub-glass 160 may be configured to transmit light from the first sub-surface 610 to the second sub-surface 620 through the second transparent material.

[0119] The main cavity 140 defines a main volume contained between the second main surface 220 and the first sub-surface 610, and the main cavity 140 may be defined between the second main surface 220 and the first sub-surface 610.

[0120] The film 400 includes a deformable portion 470 that is at least partially located in the main cavity 140 and divides the main cavity 140 into at least a first lens cavity 110 and a second lens cavity 115. The first lens cavity 110 may be configured to contain the main fluid and may be contained between the second main surface 220 and the deformable portion 470. On the other side of the film 400, located between the deformable portion 470 and the first sub-surface 610 is the second lens cavity 115, which may be configured to contain the sub-fluid.

[0121] In Figure 3 the embodiment shown, at least one lens selected from the first lens 100a and the second lens 100b includes a main fluid channel 111, which includes a main pipe configured to convey a main fluid and lead to a first lens cavity 110; and a secondary fluid channel 121, which includes a secondary pipe configured to convey a secondary fluid and lead to a second lens cavity 115. The main fluid channel 111 and the secondary fluid channel 121 can be configured to be in fluid communication with a fluid displacement member 700 described later.

[0122] Referring again to Figure 1 and Figure 2 , the adaptive glasses sub-assembly includes:

[0123] - A first electronic control device 40, including a first computer 41, a first battery 43, and a first wireless communication device 45; and

[0124] - A second electronic control device 50, separated from the first electronic control device 40, including a second computer 51, a second battery 53, and a second wireless communication device 55.

[0125] The first wireless communication device 45 and the second wireless communication device 55 are also configured to exchange a data set therebetween, which includes at least one parameter selected from the following: at least the distance between the adaptive glasses sub-assembly 1 and an external object, the focusing distance, a user command of the adaptive glasses sub-assembly 1, the optical power value of the first lens 100a, and the optical power value of the second lens 100b.

[0126] As described in detail later, the first lens 100a and the second lens 100b are each characterized by an optical power value that can vary between an initial optical power value and a final optical power value. Thus, initially, the first lens 100a is characterized by a first initial optical power value, and the second lens is characterized by a second initial optical power value. These optical power values can be included in the data set and can be exchanged between the first electronic control device 40 and the second electronic control device 50. Subsequently, the first computer 41 and the second computer 51 can determine the synchronized optical power values to be exchanged between the first electronic control device 40 and the second electronic control device 50 in order to change the initial optical power value towards a final optical power value that tends towards the synchronized optical power value.

[0127] According to one embodiment, the first computer 41 includes a first microcontroller, and the second computer 51 includes a second microcontroller.

[0128] Generally, the first electronic control device 40 is disposed on the first temple 10, and the second electronic control device 50 is disposed on the second temple 30. Figure 1In particular, an embodiment is shown in which the first computer 41 and the first wireless communication device 45 are provided on an electronic card at the central position of the first temple 10 and are electrically connected to the first battery 43 provided at the first sleeve, that is, at the first free end 11. Symmetrically, the second computer 51 and the second wireless communication device 55 are provided on an electronic card at the central position of the second temple 30 and are electrically connected to the second battery 53 provided at the second sleeve, that is, at the second free end 31.

[0129] Advantageously, the arrangement of the first electronic control device 40 on the first temple 10 and the arrangement of the second electronic control device 50 on the second temple 30 allow for a greater variety of styles to be designed for the front 3. In fact, the setting of the connection lines in the front 3 imposes restrictions on the material, shape, and attachments of the nose portion 5. For the adaptive spectacle pair 1 that is the subject of the present invention, such restrictions do not exist.

[0130] Furthermore, the arrangement of the first electronic control device 40 on the first temple 10 and the arrangement of the second electronic control device 50 on the second temple 30 allow for ensuring a good balance of the electrical quality between the first electronic control device 40 and the second electronic control device 50, and also allow for balancing the weight borne by the adaptive spectacle pair 1.

[0131] In addition, the presence of the first battery 43 and the second battery 53 allows the first temple 10 and the second temple 30 to operate in an energy-autonomous manner. This allows for providing a pair of adaptive spectacles 1 in which each lens 100a, 100b is controlled by the relevant electronic control devices 40, 50.

[0132] Specifically, in the case where it is no longer possible to exchange data sets between the first wireless communication device 45 and the second wireless communication device 55, the adaptive spectacle pair 1 can continue to operate in a degraded mode, or each temple 10, 30 of the adaptive spectacle pair 1 is autonomous.

[0133] It is well understood that the above arrangements allow the first wireless communication device 45 and the second wireless communication device 55 to communicate with each other without necessarily being connected to elements external to the spectacles, such as a smartphone or any other type of control unit.

[0134] Generally, the first wireless communication device 45 and the second wireless communication device 55 are electrically connected to the first antenna 16 and the second antenna 36 respectively. These first antenna 16 and second antenna 36 are configured to allow for the exchange of data sets between the first wireless communication device 45 and the second wireless communication device 55. The first antenna 16 and the second antenna 36 can be electrically connected to the first electronic control device 40 and the second electronic control device 50 respectively through flexible circuits, thereby allowing for the transmission of data sets.

[0135] As Figure 1 andFigure 2 As shown, the first antenna 16 can be included in the first hinge 14, and the second antenna 36 can be included in the second hinge 34. More specifically, the first hinge 14 constitutes the first antenna 16, and the second hinge 34 constitutes the second antenna 36. Thus, it is well understood that the first hinge 14 and / or the second hinge 34 function as antennas to allow data exchange between the first wireless communication device 45 and the second wireless communication device 55. Therefore, the design of the adaptive glasses pair 1 is simplified.

[0136] The above arrangement allows the first antenna 16 and the second antenna 36 to be arranged at the first connection end 12 and the second connection end 32 respectively. In this way, a data set can be exchanged using extremely low radio power to establish communication between the first wireless communication device 45 and the second wireless communication device 55. In addition, the positioning of the first antenna 16 and the second antenna 36 at the front 3 minimizes the amount of waves absorbed by the user's head of the adaptive glasses pair 1. Generally, the sufficient power radiated by the antenna is about 50 μW, which is several orders of magnitude lower than the current standard of 20 mW for the transmission power.

[0137] According to one embodiment, the first hinge 14 and the second hinge 34 have an elongated shape along an axis parallel to the hinge axis, such that the first hinge 14 is parallel to the second hinge 34. Thus, advantageously, the fact that the first hinge 14 and the second hinge 34 are positioned as two parallel segments separated by a few centimeters allows optimizing the coupling between the first antenna 16 and the second antenna 36.

[0138] The first wireless communication device 45 and the second wireless communication device 55 are configured to exchange a data set therebetween by wireless transmission technology. For example, the wireless transmission technology includes low-power Bluetooth (referred to as Bluetooth Low Energy or BLE in established Anglo-Saxon terms), near-field magnetic communication (referred to as "NFMI" or "Near-Field Magnetic Induction communication" in established Anglo-Saxon terms), near-field communication (referred to as "NFC" or "Near Field Communication" in established Anglo-Saxon terms), ultrasonic waves, electromagnetic waves of other frequencies, or any other means.

[0139] The first electronic control device 40 and the second electronic control device 50 are also configured to change the optical power of the first lens 100a and the optical power of the second lens 100b respectively according to the data set. For this purpose, it can be stipulated that the electronic control devices 40, 50 are configured to implement all or part of the steps of the control method described later.

[0140] According to one embodiment, the optical powers of the first lens 100a and the second lens 100b can vary according to the distance between the adaptive eyewear unit 1 and an external object. To this end, the adaptive eyewear unit 1 can include at least one measurement system 47, 57 configured to detect the presence of the external object and transmit a distance value separating the at least one measurement system 47, 57 from the external object to at least one electronic control device selected from the first electronic control device 40 and the second electronic control device 50. In this case, the data set includes the distance value separating the measurement systems 47, 57 from the external object. As Figure 1 and Figure 2 shown, the at least one measurement system 47, 57 is provided on at least one connection end selected from the first connection end 12 and the second connection end 32. To provide a pair of symmetric adaptive eyewear 1 and make the distance measurement more reliable, it is generally provided that the at least one measurement system 47, 57 includes a first measurement system 47 provided on the first temple 10, for example at the first connection end 12, and a second measurement system 57 arranged on the second temple 30, for example at the second connection end 32. According to this non-limiting variant, the first electronic control device 40 and the first measurement system 47 are provided on the first temple 10, and the second electronic control device 50 and the second measurement system 57 are arranged on the second temple 30, such that there are no electronic components on the front 3. In this way, the eyewear manufacturer can design and conceive new frames for the adaptive eyewear unit 1 while retaining the possibility of controlling the lenses 100a, 100b by means of the first electronic control device 40 and the second electronic control device 50 provided on the first temple 10 and the second temple 30.

[0141] The type of measurement system 47, 57 used is not limited and can include, for example, a time-of-flight sensor (referred to as "Time of Flight" or ToF according to the established Anglo-Saxon terminology); or a perspective sensor configured to determine the value of the distance separating the at least one measurement system 47, 57 from the external object by means of an angle measurement; or any other type of system or sensor capable of measuring distance. Specifically, the measurement systems 47, 57 are configured to detect the presence of the external object when the external object is located within the detection volume of the measurement systems 47, 57. For example, the detection volume is delimited by a cone whose apex coincides with the measurement systems 47, 57 and whose guiding line points in the observation direction when using the adaptive eyewear unit 1. In other words, the detection volume points towards the front of the adaptive eyewear unit 1. As will be described later, and particularly with reference to the control method of the adaptive eyewear unit 1, the distances measured by the measurement systems 47, 57 will be added to the data set in order to correct the optical power values of the lenses 100a, 100b according to these distances.

[0142] As described above, the optical power value to be applied to the first lens 100a and the optical power value to be applied to the second lens 100b can be determined by a computer selected from the first computer 41 and the second computer 51. For example, the optical power value to be applied to the first lens 100a can be proportional to the reciprocal of the first distance between the first temple 10 and the external object. This first distance can be measured by the first measurement system 47. In addition, the optical power value to be applied to the second lens 100b can be proportional to the reciprocal of the second distance between the first temple 10 and the external object. This second distance can be measured by the second measurement system 57.

[0143] However, for the comfort of the user of the adaptive eyewear pair 1, it is particularly advantageous to correct both eyes synchronously. Therefore, after determining the reciprocals of the first distance and the second distance, this data can be exchanged between the first wireless communication device 45 and the second wireless communication device 55. Then the optical power values to be applied to the first lens 100a and the second lens 100b are fixed to be equal to the synchronous optical power value, which is proportional to the reciprocal of the minimum distance among the first distance and the second distance. In this case, the final optical power value of the second lens 100b is equal to the final optical power value of the first lens 100a and is equal to the synchronous optical power value.

[0144] Then, each electronic control device 45, 55 can be configured to change the optical power of the first lens 100a and the second lens 100b through at least one fluid displacement member 700, and this fluid displacement member is configured to:

[0145] - Allow the main fluid to flow through the main fluid channel 111 to or out of the first lens cavity 110; and / or

[0146] - Allow the secondary fluid to flow through the secondary fluid channel 121 to or out of the second lens cavity 115.

[0147] Advantageously, at least one fluid displacement member 700 includes a first fluid displacement member provided on the first temple 10 associated with the first lens 100a, and a second fluid displacement member provided on the second temple 30 associated with the second lens 100b.

[0148] According to one embodiment, the fluid displacement member 700 is an electrostatic drive device of the type described in the embodiment described in the document WO2018 / 041866.

[0149] Figure 4An example of the fluid displacement member 700 is shown. The fluid displacement member 700 is described below and is used to move the main fluid and the secondary fluid between the fluid displacement member 700 and the first lens 100a. However, it is well understood that a similar second fluid displacement member 700 can be implemented in the same manner to allow the fluid to move between the second fluid displacement member 700 and the second lens 100b. As Figure 4 shown, the fluid displacement member 700 includes a first buffer chamber 710 configured to contain the main fluid and a second buffer chamber 720 configured to contain the secondary fluid. The main fluid can be configured to pass through the main fluid channel 111 leading to the first buffer chamber 710, and the first buffer chamber 710 is in fluid communication with the main fluid channel 111 of the first lens 100a. The secondary fluid can be configured to pass through the secondary fluid channel 121 that is in fluid communication with the secondary fluid channel 121 of the first lens 100a. Therefore, it is well understood that the first buffer chamber 710 is in communication with the first lens chamber 110 through the main fluid channel 111, and the second buffer chamber 720 is in communication with the second lens chamber 115 through the secondary fluid channel 121.

[0150] The first buffer chamber 710 can be at least partially defined by the main partition wall 200, and the main partition wall 200 includes a plurality of main fluid channel holes 230 configured to allow the main fluid to pass through. The second buffer chamber 720 can be at least partially defined by the secondary partition wall 300, and the secondary partition wall 300 includes a plurality of secondary fluid channel holes 330 configured to allow the secondary fluid to pass through.

[0151] The electrode chamber 500 can then be located between the first buffer chamber 710 and the second buffer chamber 720, and in particular, is at least partially defined by the main partition wall 200 and the secondary partition wall 300. The electrode chamber can include a deformable electrode 600 disposed in the electrode chamber 500 to form a first electrode chamber 615 and a second electrode chamber 625 that are isolated from each other, such that no fluid can pass through the deformable electrode 600. On the other hand, the first electrode chamber 615 can be in fluid communication with the first buffer chamber 710 via at least one main fluid channel hole 230, and the second electrode chamber 625 can be in fluid communication with the second buffer chamber 720 via at least one secondary fluid channel hole 330.

[0152] The fluid displacement member 700 can also include electrodes that are part of the main partition wall 200 and the secondary partition wall 300. These electrodes can then be configured to cooperate with the deformable electrode 600 to actuate the deformable electrode 600 between different positions, thereby moving the main fluid and the secondary fluid. The movement of the fluid at the fluid displacement member causes the fluid to move at the first lens 100a as well, to change the position of the film 400 of the first lens 100a, and thus allows the focal length value of the first lens 100a to change.

[0153] Finally, according to an embodiment (not shown), at least one electronic control device selected from the first electronic control device 40 and the second electronic control device 50 includes a user interface configured to receive at least one command from a user of the adaptive eyewear pair 1, and the at least one command is configured to be included in a data set. For example, the command may correspond to an instruction from the user to stop the correction provided by the adaptive eyewear pair 1 or to manually fix the synchronous diopter value to be applied to the first lens 100a or the second lens 100b.

[0154] The above arrangement allows for providing a pair of adaptive glasses 1 with variable diopters, wherein the coordination between the first lens 100a and the second lens 100b is carried out via the wireless communication devices 45, 55. Thus, the corrections provided by the lenses 100a, 100b can be adjusted and coordinated. For example, the lenses can be variable ophthalmic lenses without the presence of wires passing through the front face 3. Therefore, the adaptive eyewear pair 1 can be configured to correct presbyopia or configured as a mask for virtual reality or augmented reality.

[0155] The present invention also relates to a control method for controlling an adaptive eyewear pair 1 of the above type. Figure 5 An embodiment of such a control method is shown.

[0156] The control method first includes a receiving step E1, in which a data set is received by at least one electronic control device selected from the first electronic control device 40 and the second electronic control device 50. The data set includes at least one parameter selected from the following: the distance between the adaptive eyewear pair 1 and an external object, the focusing distance, a command from a user of the adaptive eyewear pair 1, the diopter value of the first lens 100a, and the diopter value of the second lens 100b. It is well understood that this list is not restrictive and, according to the embodiment, the data set may include any data or parameter useful for the operation of the electro-variable lens, such as: eye convergence or pupil size, the pupil position of the wearer of the adaptive eyewear pair, brightness data, environmental perception, an indirect measurement of temperature.

[0157] As Figure 5 shown, according to a variant in which the adaptive eyewear pair 1 includes at least one measurement system 47, 57 configured to detect the presence of an external object, the receiving step E1 of the data set includes:

[0158] - a measuring step E10, in which the distance between the measurement systems 47, 57 and the external object is measured, and

[0159] - a communication step E13, in which the distance is transmitted via the measurement systems 47, 57 to at least one electronic control device selected from the first electronic control device 40 and the second electronic control device 50, and the data set thus includes the distance.

[0160] More specifically, if the first adaptive eyewear unit 1 includes a first measurement system 47 electrically connected to the first electronic control device 40 and a second measurement system 57 electrically connected to the second electronic control device 50, the measurement step E10 includes a first measurement step E11 in which a first distance between the first measurement system 47 and an external object is measured, and a second measurement step E12 in which a second distance between the second measurement system 57 and the external object is measured.

[0161] In this case, the communication step E13 thus includes transmitting the first distance from the first measurement system 47 to the first electronic control device 40 and transmitting the second distance from the second measurement system 57 to the second electronic control device 50, and the data set thus includes the first distance and the second distance.

[0162] The control method further includes an exchange step E3 in which the data set is exchanged between the first wireless communication device 45 and the second wireless communication device 55 by means of a wireless transmission technology. According to a non-limiting variant, the control method may include a data encryption step E2 implemented before this exchange step E3. During this encryption step E2, the data set is encrypted according to any encryption method that can be carried out by a person skilled in the art. In this case, the exchange step E3 then includes exchanging the encrypted data set between the first wireless communication device 45 and the second wireless communication device 55. In this way, it is possible to prevent two adjacent adaptive eyewear units 1 from exchanging their data sets with each other. In addition, it is also possible to prevent any other detection system from accessing the data set.

[0163] Generally, the exchange step E3 includes the following steps, which may be implemented simultaneously or non-simultaneously:

[0164] - A first transmission step E31 in which the first wireless communication device 45 transmits at least a first parameter of the data set to the second wireless communication device 55;

[0165] - A second transmission step E33 in which the second wireless communication device 55 transmits at least one second parameter of the data set to the first wireless communication device 45;

[0166] - A first reception step E32 in which the first wireless communication device 45 receives the at least one second parameter of the data set transmitted by the second wireless communication device 45;

[0167] - A second reception step E34 in which the second wireless communication device 55 receives the at least one first parameter of the data set transmitted by the first wireless communication device 55.

[0168] For example, if the control method includes a first measurement step E11, the first transmission step E31 may include transmitting a first distance from the first wireless communication device 45 to the second wireless communication device 55. If the control method includes a second measurement step E12, the reverse process may be implemented in the other direction.

[0169] Once data has been exchanged between the electronic control devices 45, 55, the control method may include a step E4 of determining the synchronous diopter, implemented for example by the first computer 41 and / or the second computer 51. The step E4 of determining the synchronous diopter includes at least one of the following steps:

[0170] - A first calculation step E41 of calculating a first desired diopter value equal to the reciprocal of the first distance between the adaptive lens pair 1 and the external object;

[0171] - A second calculation step E42 of calculating a second desired diopter value equal to the reciprocal of the second distance between the adaptive lens pair 1 and the external object;

[0172] - A synchronous diopter selection step E43, in which the synchronous diopter is determined such that it is equal to the maximum of the first desired diopter value and the second desired diopter value.

[0173] Thus, at the end of the step E4 of determining the synchronous diopter, the synchronous diopter value is determined.

[0174] Then, the control method includes a diopter correction step E5, in which the diopter of the first lens 100a and the diopter of the second lens 100b are corrected according to the data set. As described above, before implementing the diopter correction step E5, the first lens 100a may be characterized by a first initial diopter value, and the second lens may be characterized by a second initial diopter value. After implementing the diopter correction step E5, the diopter values of the lenses 100a, 100b change to reach a first final diopter value of the first lens 100a and a second final diopter value of the second lens 100b. It is particularly advantageous to implement the diopter correction step E5 to fix the first final diopter value and the second final diopter value to the same value, in particular towards the synchronous diopter value determined during the step E4 of determining the synchronous diopter. In this way, the optical correction performed on the two lenses 100a, 100b at the end of the diopter correction step E5 is the same, and the viewing comfort of the user is improved. Generally, the diopter correction step E5 is implemented within a correction period that is strictly less than 1 s, in particular less than or equal to 2 s. In this way, the diopters of the two lenses 100a, 100b can be synchronized within a correction period that is comparable to the adaptation time of the eye's focus.

[0175] To implement the diopter correction step E5, different solutions may be considered.

[0176] According to a first variant in which the adaptive spectacle sub - assembly includes a correction member, the optical power correction step E5 can be achieved by applying an electric field to change the refractive index of one or both of the first lens 100a and the second lens 100b.

[0177] According to a second variant using the fluid displacement member 700, the optical power of at least one of the first lens 100a and the second lens 100b can be corrected by deforming the deformable part 470 of the membrane 400 to a correction position. This correction position corresponds, for example, to the deformation of the deformable part 470, thereby changing the volume of the first lens chamber 110 and the volume of the second lens chamber 115. For example, such a change can be implemented by actuating the fluid displacement member 700 in the manner described above. In other words, the deformation of the deformable part 470 of the membrane 400 can be achieved by a change in capacitance between two electrodes offset relative to the membrane 400. These electrodes can be included in the main partition 200 and the sub - partition 300. Thus, the optical power correction step E5 can include a step E51 of establishing a capacitance value, in which the capacitance change value is determined. For example, the capacitance change to be made for correction can be determined by a correspondence table recorded in the memory of the first electronic control device 40 and / or the second electronic control device 50. The correspondence table is configured to associate the optical power values to be applied to the lenses 100a, 100b with the capacitance values to be applied between the two electrodes.

[0178] An example of the correspondence table is given in Table 1 below, where the optical power is expressed in hundredths of a diopter and the capacitance applied between the electrodes is in picofarads.

[0179] [Table 1]

[0180]

[0181] Table 1: Correspondence between the optical power of the lens and the capacitance applied between the two electrodes of the fluid displacement member 700. By convention, when a voltage is applied to the electrode allowing the low - refractive - index (or high - refractive - index) liquid to be pushed, a negative sign (or positive sign) will be adopted for the capacitance.

[0182] Then, the optical power correction step E5 can include an application step E52 of applying the capacitance change value between the two electrodes in order to cause the movement of the deformable part 470 of the membrane 400.

[0183] Thus, advantageously, the optical power correction step E5 allows not only for the correction performed in this step to be synchronized at any time between the first lens 100a and the second lens 100b, but also for the exchange of data sets measuring the data measured by the first measurement system 47 and the second measurement system 57 respectively provided on the first temple 10 and the second temple 30. This is particularly advantageous for improving the correction of the adaptive spectacle pair 1, since the first measurement system 47 and the second measurement system 57 measure different data on the first temple 10 and the second temple 30. In a synergistic manner, the measurement of the first distance by the first measurement system 47 and the measurement of the second distance by the second measurement system 57 allow for measurement redundancy to be obtained, thus making the measurement more reliable.

[0184] Finally, the control method may include a step E6 of updating the correspondence table, wherein the correspondence table is updated in order to provide a more refined or more suitable correction for the adaptive spectacle pair 1.

[0185] The above settings allow for a control method for controlling the adaptive spectacle pair 1 to be proposed in order to adjust the correction provided by the adaptive spectacle pair 1 according to the data set received by the adaptive spectacle pair 1. Such a method can in particular correct presbyopia or coordinate the vision provided by virtual reality glasses. In the case of optical correction, the advantage of this control method is that it can provide optical correction by focusing on the two ophthalmic lenses 100a, 100b and in a coordinated manner.

Claims

1. Adaptive spectacle frame (1), comprising: - A front (3), which includes a first lens (100a) and a second lens (100b); - A first temple (10), which extends between a first free end (11) and a first connecting end (12), and the first temple (10) cooperates with the front (3) at the first connecting end (12); - A second temple (30), which is separated from the first temple (10), extends between a second free end (31) and a second connecting end (32), and the second temple (30) cooperates with the front (3) at the second connecting end (32) on the opposite side of the first temple (10) with respect to the front (3); - A first electronic control device (40), which includes a first computer (41), a first battery (43) and a first wireless communication device (45); - A second electronic control device (50), which is separated from the first electronic control device (40), includes a second computer (51), a second battery (53) and a second wireless communication device (55); The first wireless communication device (45) and the second wireless communication device (55) are configured to exchange data sets with each other, the data sets including at least one parameter selected from the following: at least the distance between the adaptive spectacle frame (1) and an external object, the focusing distance, a command of a user of the adaptive spectacle frame (1), the diopter value of the first lens (100a) and the diopter value of the second lens (100b), and the first electronic control device (40) and the second electronic control device (50) are further configured to change the diopter of the first lens (100a) and the diopter of the second lens (100b) respectively according to the data sets.

2. The adaptive spectacle frame (1) according to claim 1, wherein, The electronic control devices (45, 55) are configured to change the diopter of at least one lens selected from the first lens (100a) and the second lens (100b) through a correction member (701) including liquid crystal, and the correction member (701) is configured to allow the orientation of the liquid crystal to be changed by applying an electric field so as to change the refractive index of the at least one lens.

3. The adaptive eyewear accessory (1) according to claim 1, wherein, At least one lens selected from the first lens (100a) and the second lens (100b) includes: - A main glass (120), which includes a first transparent material and has a first main surface (210) and a second main surface (220), and the main glass (120) is configured to transmit light between the first main surface (210) and the second main surface (220); - A sub - glass (160), which includes a second transparent material and has a first sub - surface (610) and a second sub - surface (620), and the sub - glass (160) is configured to transmit light between the first sub - surface (610) and the second sub - surface (620); - A main cavity (140), which defines a main volume including between the second main surface (220) and the first sub - surface (610); and - A membrane (400) including a deformable portion (470), the deformable portion (470) being at least partially contained in the main cavity (140) and completely partitioning the main cavity (140) into at least a first lens cavity (110) and a second lens cavity (115), the first lens cavity (110) being configured to contain at least one main fluid, the second lens cavity (115) being configured to contain at least one secondary fluid, the first lens cavity (110) being contained between the second main surface (220) and the deformable portion (470), and the second lens cavity (115) being contained between the deformable portion (470) and the first secondary surface (610).

4. The adaptive eyewear accessory (1) according to claim 3, wherein, The at least one lens selected from the first lens (100a) and the second lens (100b) includes: a main fluid channel (111), the main fluid channel including a main pipe configured to convey the main fluid and lead into the first lens cavity (110); and a secondary fluid channel (121), the secondary fluid channel including a secondary pipe configured to convey the secondary fluid and lead into the second lens cavity (115).

5. The adaptive eyewear accessory (1) according to claim 4, wherein, The electronic control device (45, 55) is configured to change the optical power of the at least one lens selected from the first lens (100a) and the second lens (100b) by a fluid displacement member (700), the fluid displacement member being configured to: - allow the main fluid to flow through the main fluid channel (111) into or out of the first lens cavity (110); and / or - allow the secondary fluid to flow through the secondary fluid channel (121) into or out of the second lens cavity (115).

6. The adaptive spectacle frame (1) according to any one of claims 1 to 5, including at least one measurement system (47, 57), the measurement system being configured to detect the presence of an external object and transmit a distance value between the at least one measurement system (47, 57) and the external object to at least one electronic control device selected from the first electronic control device (40) and the second electronic control device (50).

7. The adaptive eyewear accessory (1) according to claim 6, wherein, The at least one measurement system (47, 57) is provided on at least one connection end selected from the first connection end (12) and the second connection end (32).

8. The adaptive spectacle frame (1) according to any one of claims 1 to 7, wherein, At least a portion of the first temple (10) is configured to pivot relative to the front (3) by a first hinge (14), wherein at least a portion of the second temple (30) is configured to pivot relative to the front (3) by a second hinge (34), and wherein the first wireless communication device (45) and the second wireless communication device (55) are respectively electrically connected to a first antenna (16) and a second antenna (36), the first antenna (16) and the second antenna (36) being configured to allow the exchange of the data set between the first wireless communication device (45) and the second wireless communication device (55); The first antenna (16) is included in the first hinge (14), and the second antenna (36) is included in the second hinge (34).

9. The adaptive eyewear accessory (1) according to claim 8, wherein, The first hinge (14) forms the first antenna (16), and / or wherein the second hinge (34) forms the second antenna (36).

10. The adaptive spectacle frame (1) according to any one of claims 8 or 9, wherein, The first antenna (16) is disposed at the first connection end portion (12), and the second antenna (36) is disposed at the second connection end portion (32).

11. The adaptive spectacle frame (1) according to any one of claims 1 to 10, wherein, At least one of the first electronic control device (40) and the second electronic control device (50) includes a user interface configured to receive at least one command from the user of the adaptive glasses pair (1), and the at least one command is configured to be included in the data set.

12. A control method for controlling the adaptive glasses pair (1) according to any one of claims 1 to 11, the control method comprising: - A receiving step (E1), wherein a data set is received by at least one of the first electronic control device (40) and the second electronic control device (50), the data set including at least one parameter selected from: the distance between the adaptive glasses pair (1) and an external object, the focusing distance, the command of the user of the adaptive glasses pair (1), the optical power value of the first lens (100a), and the optical power value of the second lens (100b); - An exchanging step (E3), wherein the data set is exchanged between the first wireless communication device (45) and the second wireless communication device (55) by a wireless transmission technology; - An optical power correction step (E5), wherein the optical power of the first lens (100a) and the optical power of the second lens (100b) are corrected according to the data set.

13. The control method according to claim 12, which is used to control the adaptive spectacle frame (1) according to claim 2, wherein, During the optical power correction step (E5), the optical power of at least one of the first lens (100a) and the second lens (100b) is corrected by applying an electric field to change the refractive index of the at least one lens.

14. The control method according to claim 12, which is used to control the adaptive spectacle frame (1) according to any one of claims 3 to 5, wherein, During the optical power correction step (E5), the optical power of at least one of the first lens (100a) and the second lens (100b) is corrected by deforming the deformable portion (470) of the film (400) to a correction position, and the correction position corresponds to the deformation of the deformable portion (470), thereby changing the volume of the first lens cavity (110) and the volume of the second lens cavity (115).

15. The control method according to any one of claims 12 to 14, wherein, The adaptive glasses pair (1) includes at least one measurement system (47, 57) configured to detect the presence of an external object, and the receiving step (E1) of the data set includes: - A measuring step (E10), wherein the distance between the measurement system (47, 57) and the external object is measured, and - Communication step (E13), in which the distance is transmitted to at least one electronic control device selected from the first electronic control device (40) and the second electronic control device (50) by means of the measurement system (47, 57), and the data set thus includes the distance.

16. The control method according to any one of claims 12 to 15, further comprising a data encryption step (E2) implemented before the exchange step (E3), in which the data set is encrypted, and the exchange step (E3) thus includes exchanging the encrypted data set between the first wireless communication device (45) and the second wireless communication device (55).

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