An active lens adapted to correct abnormal refraction of the wearer's eyeball

Abstract

An ophthalmic lens intended to be worn in front of a wearer's eye, the ophthalmic lens having at least one activatable optical element, having a first optical function based on the wearer's prescription that corrects anomalous refraction of the wearer's eye, wherein in a first state the at least one activatable optical element, together with the remainder of the lens, contributes to focusing an image of a distant object on the retina, and in a second state the at least one activatable optical element does not focus an image on the retina of the wearer's eye and has a second optical function that slows the progression of anomalous refraction of the eye.

Description

Technical Field

[0001] The present invention relates to a lens adapted to correct abnormal refraction of the wearer's eye. More specifically, the present invention relates to an active lens having a first optical function based on the wearer's prescription so as to correct the abnormal refraction of the wearer's eye, and a second activatable optical function that forms an image outside the retina of the wearer's eye to prevent or at least delay the progression of the abnormal refraction of the eye.

Background Art

[0002] Myopia of the eye is characterized by the eye forming an image of a distant object in front of the retina, and hyperopia is characterized by the eye forming an image of a distant object behind the retina. Myopia is usually corrected using a concave lens that provides a negative refractive power, and hyperopia is usually corrected using a convex lens that provides a positive refractive power.

[0003] It has been observed that people, especially children, whose vision is corrected using a conventional single-focus optical lens, form an inaccurate image when looking at an object located at a short distance, i.e., in a near vision state. Even for myopic children with corrected hyperopia, due to the poor imaging, the image of an object nearby is also formed behind the retina, and in extreme cases, in the foveal region.

[0004] The poor imaging as described above can affect the progression of myopia of an individual as described above. In the majority of these people, it can be seen that the degree of myopia tends to deteriorate over time, partly due to close work that requires concentration for a long time.

[0005] In particular, studies conducted on monkeys have revealed that significant poor imaging of light behind the retina occurring at locations away from the foveal region can elongate the eye and thus worsen the degree of myopia.

[0006] The management of the progression of abnormal refraction of the eye is generally carried out through a passive optical lens that is disposed on one of its surfaces and includes an optical element that prevents or at least delays the progression of abnormal refraction of the eye such as myopia or hyperopia.

[0007] The use of passive optical lenses containing optical elements has provided good results in preventing and delaying the progression of abnormal refraction of the eye, but there can be several drawbacks to the use of such lenses.

[0008] In fact, the optical elements disposed on the surface of the ophthalmic lens may generate a plurality of blurred images that can overlap with the sharp image generated by the ophthalmic lens on the retina. Such an overlap between the sharp image and the blurred image can reduce the wearer's optical performance and / or their comfort. Furthermore, the optical elements on the surface of the ophthalmic lens can narrow the field of view, induce a loss of contrast sensitivity, and induce distortion that may lead to headaches.

[0009] Furthermore, passive optical lenses containing optical elements cannot adjust the amount of abnormal refraction progression control, and when not necessary, cannot deactivate the abnormal refraction progression control function either. SUMMARY OF THE INVENTION PROBLEMS TO BE SOLVED BY THE INVENTION

[0010] Therefore, it is necessary to provide an ophthalmic lens that corrects the abnormal refraction of the wearer's eye while controlling the function of preventing or at least delaying the progression of the abnormal refraction of the wearer's eye. MEANS FOR SOLVING THE PROBLEMS

[0011] For this purpose, the present invention is an ophthalmic lens intended to be worn in front of the wearer's eye having a first optical function based on the prescription of the wearer for correcting the abnormal refraction of the wearer's eye and comprising at least one activatable optical element, In the first state, at least one activatable optical element, together with the remaining part of the lens, contributes to forming an image of a distant object on the retina. In the second state, at least one activatable optical element has a second optical function of, for example, forming an image outside the retina of the wearer's eye, thereby not forming an image on the retina of the wearer's eye and delaying the progression of refractive errors of the eye, and provides an ophthalmic lens.

[0012] Advantageously, having an ophthalmic lens having a controllable optical function of, for example, forming an image outside the retina of the wearer's eye and thereby not forming an image on the retina of the wearer's eye allows for easily adjusting the balance between preventing or delaying refractive errors of the wearer's eye and loss of the user's visual comfort or performance.

[0013] In other words, the ophthalmic lens of the present invention can manage the optical function of optimally preventing or delaying refractive errors of the wearer's eye and limit the adverse effects of the function on the visual comfort and performance of the wearer.

[0014] According to further embodiments that can be considered alone or in combination, - In the second state, at least one activatable optical element has a second optical function of forming an image outside the retina of the wearer's eye, and / or - The refractive error of the wearer's eye corresponds to myopia, and the activatable optical element forms an image of light rays in front of the user's retina, and / or - The refractive error of the wearer's eye corresponds to hyperopia, and the activatable optical element forms an image of light rays behind the user's retina, and / or - The second optical function is supported by a plurality of at least three activatable optical elements, and / or - At least one of the activatable optical elements has a spherical power, and / or - At least one of the activatable optical elements has an aspherical power, and / or - The activatable optical elements are woven in concentric rings on at least one surface of the substrate of the ophthalmic lens, and / or - The average refractive power of the activatable optical element is uniform across at least one concentric ring of the activatable optical element and / or - The average refractive power of at least a portion of the activatable optical element varies from the center to the edge of the ophthalmic lens and / or - The average refractive power of at least a portion of the activatable optical element decreases from the center to the edge of the ophthalmic lens and / or - The average refractive power of at least a portion of the activatable optical element increases from the center to the edge of the ophthalmic lens and / or - The average spherical and / or average cylindrical power of at least a portion of the optical element increases from a first point of a section of the lens towards the periphery of the section and decreases from a second point of the section towards the periphery of the section, the second point being closer to the periphery of the section than the first point and / or - At least a portion of the activatable optical element is continuous and / or - The ophthalmic lens includes a first substrate having a first refractive index and a second substrate having the first refractive index, the second substrate facing the first substrate and being arranged to form a cavity between the first substrate and the second substrate, an electroactive material arranged between the first substrate and the second substrate, the electroactive material having a refractive index equal to that of the substrates in a first state, a first conductive layer arranged on the surface of the first substrate facing the electroactive material, and a second conductive layer arranged on the surface of the second substrate facing the electroactive material. At least one of the surfaces of the substrates facing the electroactive material includes at least one activatable optical element. In the first state, the first and second substrates, the electroactive material, and the at least one activatable optical element have the same refractive index and participate in a first optical function. In the second state, the refractive index of the electroactive material is changed, thereby activating a second optical function of the at least one activatable optical element and / or - The electroactive material is a liquid crystal and / or - The at least one activatable optical element includes a thermo-optical material whose refractive index changes with temperature and / or - The refractive index of the thermo-optical material changes with temperature at a rate of 10 -3 / °C or more, and / or - The ophthalmic lens further comprises at least one electrode arranged to change the temperature of the thermo-optical material, and / or - At least one electrode is made of a conductive material having more than 80%, preferably more than 90%, more preferably more than 95% of Transmittance and / or - The conductive material corresponds to ITO and / or PEDOT and / or ATO and / or AZO, and / or - The thickness of the thermo-optical element is 5 μm or more, and / or - The thickness of the thermo-optical element is 500 μm or less, and / or - The ophthalmic lens includes a first substrate having a first refractive index, and a second substrate having the first refractive index, the second substrate facing the first substrate and being arranged to form a cavity between the first substrate and the second substrate, a first liquid arranged between the first substrate and the second substrate, the first liquid having a first refractive index equal to the refractive indices of the first and second substrates, a first liquid, and an activatable pump arranged between the two substrates, at least one of the surfaces of the substrates facing the first liquid being provided with at least one activatable optical element, in a first state, the first and second substrates, the first liquid, and the at least one activatable optical element have the same refractive index and participate in a first optical function, in a second state, the activatable pump switches the first liquid to a second liquid having a second refractive index different from the refractive indices of the first and second substrates, thereby activating a second optical function of the at least one activatable optical element, and / or - The ophthalmic lens includes a first substrate having a first refractive index, a second substrate having the first refractive index, the second substrate facing the first substrate and being arranged to form a cavity between the first substrate and the second substrate, a second substrate, an ultrathin deformable film disposed between the first substrate and the second substrate and comprising at least one activatable optical element, a first liquid disposed between the first substrate and the ultrathin deformable film, the first liquid having the first refractive index, a first liquid, a second liquid disposed between the second substrate and the ultrathin deformable film, the second liquid having a second refractive index different from the first refractive index, a second liquid, and an activatable pump disposed between the first substrate and the second substrate. In the first state, at least one activatable optical element has the same curvature as the front surface of the ophthalmic lens. In the second state, the activatable pump changes the pressure of the second liquid to deform the ultrathin film and change the curvature of at least one activatable optical element, thereby activating the second optical function of the activatable optical element, and / or - The ophthalmic lens further comprises a first substrate having a first refractive index, a second substrate having the first refractive index, the second substrate facing the first substrate and being arranged to form a cavity between the first substrate and the second substrate, a first dielectric liquid arranged between the first substrate and the second substrate, the first liquid having the first refractive index, a second dielectric liquid that is immiscible with the first dielectric liquid and is arranged between the first substrate and the second substrate, the second liquid having a first refractive index different from the first refractive index and a dielectric constant lower than that of the first liquid, at least one conductive layer arranged on at least one surface of the first and second substrates facing the second dielectric liquid forming droplets, the first dielectric forming a surrounding, and at least one conductive layer. In the first state, at least one conductive layer generates an electric field that shapes the second dielectric liquid into droplets having the same curvature as the front surface of the ophthalmic lens. In the second state, at least one conductive layer creates a non-uniform electric field that generates a dielectric force that forces at least one activatable optical element having a surface curvature different from the surface curvature of the ophthalmic lens to be formed in the second dielectric liquid that shrinks towards a region having a weaker electric field, and / or - The ophthalmic lens further comprises a substrate having a first refractive index, at least one holographic optical element arranged on the surface of the substrate facing the user's eyeball, and at least one activatable image source. In the first state, the substrate and at least one holographic optical element have the same refractive index and participate in the first optical function. In the second state, at least one image source is reflected by at least one holographic optical element and directed towards the user's eyeball, thereby generating light that activates the second optical function of at least one activatable optical element, and / or - The ophthalmic lens further comprises a varnish element arranged on at least one of its surfaces, and / or - The ophthalmic lens further comprises receiving means configured to receive data, and the transition between the first state and the second state of the ophthalmic lens is driven in real time based on the received data, and / or - The received data is activity data related to activities performed by the wearer, and / or - The received data is related to the line of sight, and / or - The received data is related to the viewing angle, and / or - The received data is related to environmental data.

[0015] Here, for several embodiments of the present invention, as just one example, the following drawings will be referred to for explanation.

Brief Explanation of Drawings

[0016]

Figure 1

Figure 2

Figure 3A

Figure 3B

Figure 4A

Figure 4B

Figure 5A

Figure 5B

Figure 6A

Figure 6B

Figure 7

Best Mode for Carrying Out the Invention

[0017] The elements in the drawings are not necessarily drawn to scale in order to show the elements simply and clearly. For example, in order to make the embodiments of the present invention easier to understand, the sizes of some elements in the figure may be exaggerated compared to other elements.

[0018] The present invention relates to an ophthalmic lens intended to be worn in front of the eye of a wearer and having a first optical function based on a prescription for the wearer to correct abnormal refraction of the wearer's eye, the ophthalmic lens comprising at least one activatable optical element, for example a plurality of at least three activatable optical elements.

[0019] In a first state, at least one activatable optical element, together with the rest of the lens, contributes to forming an image of a distant object on the retina. In a second state, at least one activatable optical element has a second optical function of not forming an image on the retina of the wearer's eye and delaying the progression of the abnormal refraction of the wearer's eye.

[0020] According to one embodiment of the present disclosure, in the second state, at least one activatable optical element forms an image of a distant object outside the retina of the wearer's eye and has a second optical function of delaying the progression of the abnormal refraction of the wearer's eye. This particular embodiment corresponds to any embodiment encompassed by the present invention, particularly any embodiment described in relation to FIGS. 1 to 7.

[0021] As shown in FIG. 1, an ophthalmic lens 2 according to the present invention includes a holder 4, and the holder 4 includes a refractive region 6 and a plurality of activatable optical elements 8.

[0022] The holder 4 can be, for example, a single substrate made of a polycarbonate material. Alternatively, the holder 4 can be made of a plurality of substrates, preferably two substrates, arranged facing each other to form an ophthalmic lens.

[0023] The holder 4 has a refractive region 6 having a first optical function of forming an image of a distant object on the retina of the eye of the wearer of the ophthalmic lens.

[0024] The first optical function is based on the prescription of the eye of the wearer for whom the ophthalmic lens is adapted. The prescription is adapted to correct the refractive anomaly of the eye of the wearer.

[0025] The term "prescription" is to be understood as meaning a set of optical properties of refractive power, astigmatism, and prism deviation determined by an ophthalmologist or optometrist, for example using a lens placed in front of the eye of the individual, to correct the visual defects of the eye. For example, the prescription for a myopic eye includes the values of refractive power and astigmatism along the axis of distance vision.

[0026] For example, the shape of the refractive region 6 is spherical. The shape of the other surface of the ophthalmic lens is configured such that the refractive region has the first optical function of forming an image on the retina.

[0027] For example, the shape of the second surface is sphero-torical. Advantageously, the shape of the second surface of the ophthalmic lens is aspherical and calculated by optical optimization so that any light beam incident on the refractive region 6 forms an image on the retina of the wearer when the lens is worn.

[0028] According to various embodiments of the present disclosure, the refractive anomaly of the eye is myopia, hyperopia, or astigmatism.

[0029] The ophthalmic lens 2 according to the present invention further includes at least one activatable optical element 8. Preferably, the ophthalmic lens 2 includes a plurality of at least three activatable optical elements 8.

[0030] The at least one activatable optical element 8 can change between a plurality of states, preferably two states, having different optical functions. The at least one activatable optical element 8 changes the state of the activatable optical element.

[0031] In the first state, at least one activatable optical element 8 has an optical function of forming an image of a distant object on the retina of the wearer's eye. In other words, at least one activatable optical element 8 contributes to the first optical function together with the refractive region 6 of the ophthalmic lens.

[0032] At least one activatable optical element 8 can switch to a second state having a second optical function of not forming an image of a distant object on the retina of the wearer's eye.

[0033] According to one embodiment of the present disclosure, in the second state, at least one activatable optical element 8 can switch to a second state having a second optical function of forming an image of a distant object outside the retina of the wearer's eye.

[0034] When the abnormal refraction of the wearer's eye corresponds to myopia, in one embodiment, at least one activatable optical element 8 has an optical function of forming an image in front of the retina of the wearer's eye.

[0035] When the abnormal refraction of the wearer's eye corresponds to hyperopia, at least one activatable optical element 8 has an optical function of forming an image behind the retina of the wearer's eye.

[0036] At least one activatable optical element 8 is smaller than the pupil of the wearer's eye.

[0037] Advantageously, with the arrangement of at least one activatable optical element 8, an image of a distant object is formed simultaneously outside the retina and the retina of the wearer of the ophthalmic lens, enabling the object to be seen completely, and preventing or delaying the abnormal refraction of the wearer's eye.

[0038] According to one embodiment of the present invention, at least one activatable optical element 8 in the second state does not form an image of a distant object on the retina of the wearer's eye, and in a specific embodiment, is configured to form an image of transmitted light outside the retina of the wearer's eye.

[0039] The second optical function can be supported by a plurality of at least three activatable optical elements. For example, at least one of the activatable optical elements has a spherical power and / or at least one of the activatable optical elements has an aspherical power.

[0040] The activatable optical elements can be woven in concentric rings on the ophthalmic lens, for example, on at least one surface of the substrate of the ophthalmic lens.

[0041] By having activatable optical elements woven in concentric rings on the ophthalmic lens, the aesthetics of the lens are improved and the comfort of the wearer is improved.

[0042] The average refractive power of the activatable optical elements can be uniform across at least one concentric ring of the activatable optical elements.

[0043] The average refractive power of at least a portion of the activatable optical elements can vary from the center to the edge of the ophthalmic lens.

[0044] The average refractive power of at least a portion of the activatable optical elements can decrease from the center to the edge of the ophthalmic lens. Further, the average refractive power of at least a portion of the activatable optical elements can increase from the center to the edge of the ophthalmic lens.

[0045] The average sphere and / or average cylinder power of at least a portion of the optical elements increases from a first point of a section of the lens towards the periphery of the section and decreases from a second point of the section towards the periphery of the section, the second point being closer to the periphery of the section than the first point.

[0046] At least a portion of the activatable optical elements can be continuous. In the sense of the present invention, two optical elements are continuous if there is a path connecting the two optical elements and along a part of the path, the refractive power based on the prescription of the wearer's eyeball cannot be measured.

[0047] At least one of the activatable optical elements can have a spherical power.

[0048] At least one activatable optical element may have an aspheric power.

[0049] As shown in FIG. 2, the ophthalmic lens may comprise a substrate 10 having a first refractive index. For example, the substrate 10 is made of polycarbonate.

[0050] The ophthalmic lens may further comprise at least one electrode 12. The at least one electrode 12 can preferably be divided into a plurality of sub - electrodes forming a plurality of pixels arranged in a line / column matrix or a concentric pattern and can be driven independently or by line / column or concentric electrodes. The at least one electrode 12 is disposed on the surface of the substrate 10. The at least one electrode is disposed on the surface of the substrate so as to form a specific pattern. The at least one electrode 12 is preferably disposed on the surface of the substrate. For example, the at least one electrode can be disposed on the first surface of the substrate facing the wearer's eyeball. Alternatively, the at least one electrode can be disposed on the second surface of the substrate opposite to the first surface. Preferably, the ophthalmic lens comprises a plurality of electrodes 12 disposed on both the first and second surfaces of the holder.

[0051] The at least one electrode 12 is made of a conductive material having more than 80%, preferably more than 90%, more preferably more than 95% Transmittance For example, the conductive material of the electrode corresponds to ITO (indium tin oxide) and / or PEDOT (poly(3,4 - ethylenedioxythiophene) polystyrene sulfonate) and / or ATO (antimony tin oxide) and / or AZO (aluminum zinc oxide).

[0052] According to one embodiment of the present invention, the ophthalmic lens further comprises a thermo - optical material disposed on the at least one electrode 12.

[0053] The refractive index of the thermo - optical material may vary with temperature. For example, the refractive index of the thermo - optical element is 10 -3It changes at a rate of / ℃ or more. The thickness of the thermo-optical element can be 5 μm or more and / or 500 μm or less.

[0054] The thermo-optical material forming at least one activatable optical element can change between different states having different optical functions, preferably two states. For example, in the first state, the thermo-optical material has a first refractive index equal to the refractive index of the substrate at a temperature of, for example, 15 °C or more and 25 °C or less, and contributes to the first optical function together with the rest of the lens. In the second state, the thermo-optical material has a second optical function and at least a second refractive index different from the refractive index of the substrate at a temperature of, for example, 30 °C or more and 55 °C or less.

[0055] At least one electrode 12 can be made of an electrically resistive material that can generate heat in the electrode when an electric current flows through it.

[0056] For example, in the first state, a current of the first intensity flows through at least one electrode, thereby generating a first amount of heat that brings the thermo-optical material to the first temperature. At the above first temperature, the thermo-optical material has, for example, the same first refractive index as the refractive index of the holder. In this first state, the thermo-optical material has the first optical function and participates in the first optical function of the ophthalmic lens.

[0057] In the second state, a current of the second intensity flows through at least one electrode, thereby generating a second amount of heat that brings the thermo-optical element to the second temperature. The change in temperature changes the refractive index of the thermo-optical material, thereby changing its optical function. In this second state, the thermo-optical material has the second optical function.

[0058] The second optical function of the activatable optical element can depend on the temperature generated by the intensity of the current flowing through at least one electrode that can be subdivided into a plurality of electrodes in some cases. The current gradient can be obtained through the gradient of the applied voltage generated by a plurality of sub-electrodes constituting at least one electrode to generate a temperature gradient and provide a specific second optical function.

[0059] Furthermore, the second optical function of the activatable optical element may depend on the configuration of at least one electrode and the thermo-optical material. In other words, a particular pattern of electrodes disposed on the surface of the substrate may correspond to a particular second optical function.

[0060] According to one embodiment, at least one electrode 12 is configured on the surface of the substrate 10 such that the second optical function of at least one activatable optical element is a spherical function.

[0061] Similarly, at least one electrode 12 may be configured on the surface of the substrate 10 such that the second optical function of at least one activatable optical element is an aspherical function.

[0062] The thermo-optical material may be covered by a varnish element 14. The varnish element may provide mechanical protection to the thermo-optical material. Furthermore, the varnish element may serve as a thermal buffer to the thermo-optical material. In other words, the varnish element separates the thermo-optical material from the rest of the ophthalmic lens to protect it from the effects of heat.

[0063] Furthermore, the ophthalmic lens may include an anti-reflection coating element 16. The anti-reflection coating element is preferably disposed on the varnish element 14 so as to be at least partially insulated from the heat generated by at least one electrode 12. Advantageously, the anti-reflection coating element is capable of suppressing or at least reducing parasitic effects resulting from light reflection on both sides of the ophthalmic lens.

[0064] The anti-reflection coating element preferably has thermal expansion resistance. For example, the anti-reflection coating element may be a sol-gel anti-reflection element. Alternatively, the anti-reflection coating element may be composed of a low refractive index hybrid multilayer.

[0065] According to another embodiment of the present invention, the ophthalmic lens further includes an electroactive element disposed on at least one electrode 12.

[0066] The refractive index of the electroactive element can vary according to the applied electric field. In particular, the orientation of the element forming the electroactive material changes when an electric field is applied, and thus the refractive index experienced by the light passing through the ophthalmic lens also changes.

[0067] The electroactive element forming at least one activatable element can change between different states, preferably two states, having different optical functions.

[0068] For example, in a first state, the electroactive element has a first refractive index equal to the refractive index of the substrate, and in a second state, the electroactive element has a second refractive index different from the refractive index of the substrate and the second optical function.

[0069] At least one electrode 12 can be made of a conductive material that is divided into a plurality of electrodes arranged in a line-column pattern that forms electrical pixels in some cases. The plurality of electrodes are connected to a power source such as the applied voltage of each pixel and can be controlled individually or by lines and columns.

[0070] For example, in a first state, a first applied voltage flows through all the pixels of at least one electrode, thereby generating a first electric field. At the above current applied voltage, the electroactive element has, for example, a first refractive index identical to the refractive index of the holder. In this first state, the electroactive element has a first optical function and participates in the first optical function of the ophthalmic lens.

[0071] In a second state, a plurality of applied voltages are applied to the plurality of pixels forming at least one electrode, thereby generating a second electric field distribution. The second electric field distribution changes the refractive index of the electroactive element, thereby changing its optical function. In this second state, at least one active optical element has a second optical function.

[0072] Furthermore, the second optical function of the activatable optical element can depend on the arrangement of at least one electrode and the electroactive element. In other words, a specific pattern of electrodes arranged on the surface of the substrate can correspond to a specific second optical function.

[0073] According to one embodiment, at least one electrode 12 is woven onto the surface of the substrate 10 such that the second optical function of at least one activatable optical element is a spherical function.

[0074] Similarly, at least one electrode 12 can be woven onto the surface of the substrate 10 such that the second optical function of at least one activatable optical element is an aspherical function.

[0075] According to one embodiment of the present invention, at least one activatable optical element can include an array of electroactive cells. The array of electroactive cells is preferably arranged on the surface of a holder. Each cell of the array of cells can be filled with an active electro-material such that the refractive index can vary at each pixel independently of one another.

[0076] As shown in FIG. 3A, an ophthalmic lens 2 according to one embodiment of the present invention can include a first substrate 20a and a second substrate 20b. The second substrate 20b is arranged to face the first substrate and form a cavity 22 between the two substrates. The first substrate 20a has a first refractive index, and the second substrate 20b has a second refractive index that is the same as the first refractive index.

[0077] The two substrates can be made of the same material, for example, polycarbonate.

[0078] The ophthalmic lens 2 can further include an electroactive material 24 disposed between the first substrate and the second substrate and within the cavity 22.

[0079] The electroactive material 24 can change between a plurality of states having different refractive indices, preferably between two states. For example, in the first state, the electroactive material 24 has a first refractive index that is the same as the refractive index of the substrate, and in the second state, the electroactive material 24 has a second refractive index that is different from the refractive index of the substrate.

[0080] The electroactive material 24 can be a liquid crystal, such as a cholesteric liquid crystal material or a blue phase liquid crystal in the case of a polarization-independent material.

[0081] The ophthalmic lens 2 may further include a first conductive layer 26a and a second conductive layer 26b. The first conductive layer 26a is disposed on the surface of the first substrate 20a facing the cavity 22 and the electroactive material 24. The second conductive layer 26b is disposed on the surface of the second substrate 20b facing the cavity 22 and the electroactive material 24.

[0082] The first and second conductive layers may be transparent conductive ITO electrodes.

[0083] At least one of the surfaces of the substrates facing the cavity 22 includes at least one structure forming at least one activatable optical element 8. The at least one activatable optical element 8 may have a concave or convex shape on at least one surface of the substrate facing the electroactive material.

[0084] According to one embodiment of the present invention, the at least one activatable optical element has a discontinuity such as a discontinuous surface having a convergent (similar to convex) or divergent (similar to concave) phase profile. The discontinuous surface can be a Fresnel height lens profile, a binary lens profile, a π-Fresnel lens profile, a diffractive element, a metasurface.

[0085] In the first state, the substrates 20a, 20b, and the electroactive material 24 have similar refractive indices that render the at least one activatable optical element 8 invisible. The ophthalmic lens 2 in the first state has a substantially constant refractive index over its thickness, thereby providing a constant refractive power over its surface. The refractive power is based on the wearer's prescription so as to correct the abnormal refraction of the wearer's eye by forming an image on the retina of the wearer's eye.

[0086] As shown in FIG. 3B, the ophthalmic lens 2 according to the present invention can be in a second state different from the first state.

[0087] In the second state, a voltage is applied through the conductive layers 26a, 26b to generate a local electric field that changes the refractive index of the electroactive material 24 to a second refractive index. Since the second refractive index of the electroactive material in the second state is different from the refractive index of the substrate, at least one activatable optical element 8 formed on at least one surface of the substrate facing the electroactive element 24 is optically activated.

[0088] In this second state, the at least one activatable optical element 8 has a second refractive power different from the refractive power of the ophthalmic lens and has a second optical function that does not image on the retina of the wearer's eye. In certain embodiments, the at least one activatable optical element 8 has a second optical function that images outside the retina of the wearer's eye.

[0089] The orientation of the electroactive material changes upon application of an electric field, and thus the refractive power experienced by light passing through the ophthalmic lens also changes.

[0090] The at least one activatable optical element 8 may have a concave shape on at least one surface of the substrate. When the second refractive index of the electroactive material 24 in the second state is higher than the first refractive index of the electroactive material in the first state, the at least one activatable optical element 8 has an optical function of imaging light in front of the retina of the wearer's eye. Alternatively, when the refractive index in the second state is smaller than the refractive index in the first state, the at least one activatable optical element 8 has an optical function of imaging light behind the retina of the wearer's eye.

[0091] The at least one activatable optical element 8 may have a concave shape on at least one surface of the substrate. When the second refractive index of the electroactive material 24 in the second state is higher than the first refractive index of the electroactive material in the first state, the at least one activatable optical element 8 has an optical function of imaging light behind the retina of the wearer's eye. Alternatively, when the refractive index in the second state is smaller than the refractive index of the electroactive material in the first state, the at least one activatable optical element 8 has an optical function of imaging light in front of the retina of the wearer's eye.

[0092] As shown in FIG. 4A, an ophthalmic lens 2 according to another embodiment of the present invention may include a first substrate 30a and a second substrate 30b. The second substrate 30b is disposed facing the first substrate so as to form a cavity 32 between the two substrates. The first substrate 30a has a first refractive index, and the second substrate 30b has a second refractive index that is the same as the first refractive index.

[0093] At least one of the surfaces of the substrate facing the cavity 32 includes at least one activatable optical element 8, for example, a plurality of at least three optical elements 8.

[0094] The two substrates may be made of the same material, for example, polycarbonate.

[0095] The ophthalmic lens 2 may further include a first liquid 34a disposed between the first substrate and the second substrate and disposed within the cavity 32. The first liquid 34a has a first refractive index equal to the refractive indices of the first and second substrates.

[0096] The ophthalmic lens 2 may further include an activatable pump 36. Preferably, the activatable pump 36 is disposed between the two substrates.

[0097] In the first state, the substrates 30a, 30b, and the first liquid 34 have similar refractive indices that render at least one activatable optical element 8 invisible. The ophthalmic lens 2 in the first state has a substantially constant refractive index over its thickness, thereby providing a constant refractive power over its surface. The refractive power is based on the wearer's prescription so as to correct the abnormal refraction of the wearer's eye by forming an image on the retina of the wearer's eye.

[0098] As shown in FIG. 4B, the ophthalmic lens 2 according to the present invention may be in a second state different from the first state.

[0099] In the second state, the activatable pump 36 is activated to replace the first liquid 34a with the second liquid 34b having a second refractive index. Since the second refractive index of the second liquid 34b is different from the refractive index of the substrate, at least one activatable optical element 8 formed on at least one surface of the substrate facing the second liquid 34b is optically activated.

[0100] In this second state, the at least one activatable optical element 8 has a second refractive power different from the refractive power of the ophthalmic lens and has a second optical function that does not image on the retina of the wearer's eye. In certain embodiments, the at least one activatable optical element 8 has a second optical function that images outside the retina of the wearer's eye.

[0101] The at least one activatable optical element 8 may have a concave shape on at least one surface of the substrate or may have a discontinuity such as a discontinuous surface that generates a converging (similar to a convex shape) or diverging (similar to a concave shape) phase profile. The discontinuous surface can be a Fresnel height lens profile, a binary lens profile, a π - Fresnel lens profile, a diffractive element, a metasurface.

[0102] When the refractive index of the second liquid 34b is higher than the refractive index of the first liquid 34a, the at least one activatable optical element 8 has an optical function of imaging light in front of the retina of the wearer's eye. Alternatively, when the refractive index of the second liquid 34b is smaller than the refractive index of the first liquid 34a, the at least one activatable optical element 8 has an optical function of imaging light behind the retina of the wearer's eye.

[0103] The at least one activatable optical element 8 may have a convex shape on at least one surface of the substrate. When the refractive index of the second liquid 34b is higher than the refractive index of the first liquid 34a, the at least one activatable optical element 8 has an optical function of imaging light behind the retina of the wearer's eye. Alternatively, when the refractive index of the second liquid 34b is smaller than the refractive index of the first liquid 34a, the at least one activatable optical element 8 has an optical function of imaging light in front of the retina of the wearer's eye.

[0104] As shown in FIG. 5A, an ophthalmic lens 2 according to another embodiment of the present invention may include a first substrate 40a and a second substrate 40b. The second substrate 40b is disposed facing the first substrate so as to form a cavity 42 between the two substrates. The first substrate 40a has a first refractive index, and the second substrate 40b has a second refractive index. Preferably, the second refractive index of the second substrate is the same as the first refractive index.

[0105] The two substrates may be made of the same material, for example, polycarbonate.

[0106] The ophthalmic lens 2 may further include an ultrathin deformable film 46 on which the first substrate 40a and the second substrate 40b are disposed. The ultrathin deformable film 46 includes at least one deformable zone corresponding to at least one activatable optical element 8.

[0107] The ophthalmic lens 2 may further include a first liquid 44a disposed within the cavity 42 and between the first substrate 40a and the ultrathin film 46, and a second liquid 44b disposed within the cavity 42 and between the second substrate 40b and the ultrathin film 46.

[0108] The refractive index n of the first liquid 44a 1 is preferably the refractive index n of the second liquid 44b 2 and is different. Advantageously, the refractive index of the ultrathin deformable film is, in order to minimize reflection,

Number

[0109] The ophthalmic lens 2 may further comprise an activatable pump 48. Preferably, the activatable pump 48 is disposed between the substrate and the ultrathin film 46 and contacts only one of the first or second liquids.

[0110] In the first state, the surfaces of the substrates 40a, 40b, and the ultrathin deformable film 46 have the same curvature corresponding to the basic curvature of the ophthalmic lens. The pressures of the first liquid 44a and the second liquid 44b are maintained the same so as to maintain the curvature of the ultrathin deformable film 46. The ophthalmic lens 2 in the first state has a constant surface refractive power, thereby providing a constant refractive power across its surface. The refractive power is based on the wearer's prescription so as to correct the abnormal refraction of the wearer's eye by forming an image on the retina of the wearer's eye.

[0111] As shown in FIG. 5B, the ophthalmic lens 2 according to the invention can be in a second state different from the first state.

[0112] In the second state, the activatable pump 46 is activated to change the pressure of the second liquid 44b. The change in the pressure of the second liquid 44b deforms the ultrathin deformable film 46 by the arrangement of at least one activatable optical element 8, thereby changing the surface curvature of the activatable optical element. Such a change in the curvature of at least one activatable optical element 8 is optically activated.

[0113] In this second state, at least one activatable optical element 8 has a second refractive index different from the refractive index of the ophthalmic lens and has a second optical function that does not form an image on the retina of the wearer's eye.

[0114] In a particular embodiment, at least one activatable optical element 8 has a second optical function that forms an image outside the retina of the wearer's eye.

[0115] The relative deformation of the ultrathin deformable film from the first state where the film is flat to the second state where the ultrathin deformable film is curved is related by the relationship:

Number

[0116] According to another embodiment, the ophthalmic lens 2 further comprises a support on which the ultra-thin deformable film 46 is disposed. The support comprises holes that, together with the ultra-thin deformable film, define a plurality of activatable optical elements 8.

[0117] Preferably, the support is rigid. Advantageously, the support deforms when the compression of the second liquid changes. The support can be flat. Preferably, the support has the same curvature as the curvature of the substrate, for example, the support is spherical.

[0118] Advantageously, the refractive index of the support is equal to the refractive index of the first liquid 44a in order to avoid any refraction and reflection.

[0119] As shown in FIG. 6A, the ophthalmic lens 2 according to another embodiment of the present invention may comprise a first substrate 50a and a second substrate 50b. The second substrate 50b is disposed facing the first substrate so as to form a cavity 52 between the two substrates. The first substrate 50a has a first refractive index, and the second substrate 50b has a second refractive index that is the same as the first refractive index.

[0120] The two substrates can be made of the same material, for example, polycarbonate.

[0121] The ophthalmic lens 2 may further comprise a first dielectric liquid 54a disposed within the cavity 52 and between the first substrate and the second substrate. The first dielectric liquid 54a has a first refractive index.

[0122] The ophthalmic lens 2 may further include a second dielectric liquid 54b disposed within the cavity 52 and between the first substrate and the second substrate. The second dielectric liquid 54b is immiscible with the first dielectric liquid 54a and has a second refractive index different from the refractive index of the first dielectric liquid 54b. The dielectric constant of the second dielectric liquid 54b is lower than the dielectric constant of the first dielectric liquid 54a.

[0123] The ophthalmic lens 2 may further include at least one conductive layer 56 disposed on at least one surface of the first and second substrates facing the cavity.

[0124] In the first state, at least one conductive layer 56 subdivided into a plurality of electrodes generates an electric field that maintains the second liquid in a specific configuration. In this first state, the second dielectric liquid is shaped by the electric field to form one droplet having the same surface curvature as the front surface curvature of the ophthalmic lens 2. The first dielectric liquid 54a having a dielectric constant higher than that of the second dielectric liquid 54b fills the remaining portion of the cavity 52 and surrounds the second dielectric liquid 54b. The ophthalmic lens 2 in the above first state has a constant surface refractive power, thereby providing a constant refractive power across its surface. The refractive power is based on the wearer's prescription so as to correct the refractive error of the wearer's eye by forming an image on the retina of the wearer's eye.

[0125] As shown in FIG. 6B, the ophthalmic lens 2 according to the invention can be in a second state different from the first state.

[0126] In the second state, at least one conductive layer 56 divided into a plurality of electrodes generates a non-uniform horizontal electric field that forces the second dielectric liquid 54b with the lowest dielectric constant to contract towards a region with a weaker electric field. The second dielectric liquid 54b shaped by the non-uniform electric field forms at least one activatable optical element 8. Since the shape of the second dielectric liquid 54b is changed, the curvature of the surface of the liquid forming at least one activatable optical element is also changed and is different from the surface curvature of the ophthalmic lens 2. Such a change in the curvature of at least one activatable optical element 8 is optically activated.

[0127] In this second state, at least one activatable optical element 8 has a second refractive index different from the refractive index of the ophthalmic lens and has a second optical function that does not form an image on the retina of the wearer's eye.

[0128] In a particular embodiment, at least one activatable optical element 8 has a second optical function that forms an image outside the retina of the wearer's eye.

[0129] According to another embodiment of the present invention shown in FIG. 7, the ophthalmic lens may further include a substrate 60 having a first refractive index.

[0130] The ophthalmic lens may further include at least one holographic optical element disposed on the surface of the substrate facing the wearer's eye. Preferably, the ophthalmic lens includes a plurality of at least three holographic optical elements disposed on the surface of the substrate facing the wearer's eye.

[0131] In this particular embodiment, at least one holographic optical element forms at least one activatable optical element 8 of the ophthalmic lens 2.

[0132] The ophthalmic lens may further include at least one activatable image source 62. Alternatively, the activatable image source may be incorporated into the ophthalmic lens 2 in the Soeda eyewear device.

[0133] In the first state, the substrate and at least one holographic optical element have the same refractive index and participate in the first optical function of the ophthalmic lens. The ophthalmic lens in the first state has a certain surface refractive power, thereby providing a certain refractive power across its surface. The refractive power is based on the prescription of the wearer so as to correct the refractive error of the wearer's eye by forming an image on the retina of the wearer's eye.

[0134] In the second state, at least one image source is deflected onto at least one holographic optical element on the user's eyeball, thereby generating light that activates a second optical function of at least one activatable optical element. In this second state, at least one activatable optical element 8 formed by at least one holographic optical element has a second optical function that does not image on the retina of the wearer's eyeball.

[0135] In certain embodiments, at least one activatable optical element 8 has a second optical function that images outside the retina of the wearer's eyeball.

[0136] The ophthalmic lens 2 may comprise a varnish element disposed on at least one of its surfaces. The varnish element may provide mechanical protection to the surface of the ophthalmic lens that it covers.

[0137] Furthermore, the ophthalmic lens may comprise an anti-reflection coating element. The anti-reflection coating element is preferably disposed on at least one of the surfaces of the ophthalmic lens. Advantageously, the anti-reflection coating element is such that it can suppress or at least reduce parasitic effects resulting from light reflection on both sides of the ophthalmic lens.

[0138] The anti-reflection coating element preferably has thermal expansion resistance. For example, the anti-reflection coating element may be a sol-gel anti-reflection element. Alternatively, the anti-reflection coating element may be composed of a low refractive index hybrid multilayer.

[0139] According to one embodiment of the present invention, the ophthalmic lens 2 further comprises receiving means configured to receive data.

[0140] The transition of the ophthalmic lens 2 from one state to another state can be driven in real time by the received data.

[0141] The received data may be related to activity data. In the context of the present invention, activity data may directly identify an activity performed by the wearer of the ophthalmic lens or be data that enables such an activity to be specified, for example, an instruction that enables the wearer's activity to be specified from a database and / or a lookup table. The activity data may be provided directly by the wearer himself / herself, for example, by selecting an activity in an activity list.

[0142] For example, the ophthalmic lens may be in a first state in which the activatable optical element contributes to the function of forming an image on the retina of the wearer's eye together with the rest of the lens. When the ophthalmic lens receives activity data indicating that the wearer is reading a book, the ophthalmic lens may transition to a second state in which the activatable optical element has an optical function that does not form an image of light on the retina of the wearer's eye and that prevents or at least delays the progression of the abnormal refraction of the eye.

[0143] Alternatively, the ophthalmic lens may be in a second state in which the activatable optical element has an optical function that does not form an image of light on the retina of the wearer's eye and that prevents or at least delays the progression of the abnormal refraction of the eye.

[0144] In certain embodiments, at least one activatable optical element 8 has a second optical function of forming an image outside the retina of the wearer's eye.

[0145] When the ophthalmic lens receives activity data indicating that the wearer is driving a vehicle, the ophthalmic lens may transition to a first state in which the activatable optical element contributes to the function of forming an image on the retina of the wearer's eye together with the rest of the lens.

[0146] The received data may be related to the viewing distance. In the context of the present invention, the viewing distance corresponds to the distance between the eye of the wearer wearing the ophthalmic lens and the object that the wearer is looking at.

[0147] For example, while the wearer is looking at a far viewing distance, the ophthalmic lens can be in a first state where the activatable optical element contributes to the function of forming an image on the retina of the wearer's eyeball together with the rest of the lens. When the ophthalmic lens receives viewing distance data indicating that the wearer is looking at a near viewing distance, the ophthalmic lens has an optical function in which the activatable optical element does not form an image on the retina of the wearer's eyeball, and in a specific embodiment, has an optical function of forming an image outside the retina of the wearer's eyeball, and can transition to a second state that prevents or at least delays the progression of the abnormal refraction of the eyeball.

[0148] According to an embodiment of the present invention, the ophthalmic lens 2 further includes a distance sensor that measures the viewing distance and transmits the measured viewing distance to a receiving means of the ophthalmic lens.

[0149] The received data may be related to the viewing angle. In the context of the present invention, the viewing angle corresponds to the angle between the direction connecting the wearer's eyeball and the object being viewed by the wearer wearing the ophthalmic lens and the horizontal direction passing through the geometric center of the lens and the geometric center of the wearer's eyeball.

[0150] For example, the ophthalmic lens can be in a first state where the activatable optical element contributes to the function of forming an image on the retina of the wearer's eyeball together with the rest of the lens while the wearer is looking at the center of the lens. When the ophthalmic lens receives viewing angle data indicating that the wearer is looking at, for example, the lower part of the ophthalmic lens, the ophthalmic lens has an optical function in which the activatable optical element does not form an image on the retina of the wearer's eyeball, and in a specific embodiment, has an optical function of forming an image outside the retina of the wearer's eyeball, and can transition to a second state that prevents or at least delays the progression of the abnormal refraction of the eyeball.

[0151] Alternatively, while the wearer is looking away from the center of the lens, the ophthalmic lens can be in a first state in which the activatable optical element, together with the rest of the lens, contributes to the function of forming an image on the retina of the wearer's eye. When the ophthalmic lens receives viewing angle data indicating that the wearer is looking at the central zone of the ophthalmic lens, the ophthalmic lens has an optical function in which the activatable optical element does not form an image on the retina of the wearer's eye, and in certain embodiments, an optical function of forming an image outside the retina of the wearer's eye, and can transition to a second state that prevents or at least delays the progression of the abnormal refraction of the eye.

[0152] According to one embodiment of the present invention, the ophthalmic lens 2 further comprises an azimuth sensor that measures the viewing angle and transmits the measured viewing angle to the receiving means of the ophthalmic lens.

[0153] The received data can correspond to the direction of gaze. In the sense of the invention, the direction of gaze corresponds to the position of the optical axis of the eye. The optical axis of the eye corresponds to an axis passing through the center of rotation of the eye and the center of the pupil of the eye.

[0154] According to one embodiment of the present invention, the activatable optical elements included within the visual zone are in a first state and contribute to the first optical function of the ophthalmic lens together with the rest of the lens. The activatable optical elements outside the visual zone are in a second state and have a second optical function.

[0155] Alternatively, the activatable optical elements included within the visual zone can be in a second state and can have a second optical function. The activatable optical elements outside the visual zone are in a first state and contribute to the first optical function of the ophthalmic lens together with the rest of the lens.

[0156] Vision corresponds to a circular zone defined by the intersection of the center with the actual direction of gaze of the wearer's eye and the surface of the ophthalmic lens, for example, the surface of the ophthalmic lens facing the wearer's eye. The visual zone can have a diameter of 5 mm to 20 mm, preferably 5 mm to 15 mm, more preferably 5 mm to 10 mm.

[0157] According to an embodiment of the present invention, the ophthalmic lens 2 further comprises a fixation direction sensor that identifies the fixation direction and transmits the fixation direction to the receiving means of the ophthalmic lens.

[0158] Advantageously, the identified fixation direction is transmitted to the receiving means in real time to immediately adapt the state of the activatable optical element according to the actual fixation direction of the wearer's eyeball.

[0159] The received data may be related to environmental data. In the context of the present invention, environmental data relates to any parameter of the wearer's environment that can affect the wearer's vision. For example, the environmental data may be related to the spectral characteristics and intensity of the light received by the wearer. Further, the environmental data may be related to the temperature and / or humidity of the wearer's environment, the amount and / or type of allergens and / or pollutants contained in the wearer's environment, and / or an indication of the wearer's location such as indoors or outdoors.

[0160] For example, when the intensity of the light received by the wearer is too significant, the ophthalmic lens may be in a first state in which the activatable optical element contributes to the function of forming an image on the retina of the wearer's eyeball together with the rest of the lens. When the ophthalmic lens receives environmental data indicating that the intensity of the light is lower than a predefined threshold, the ophthalmic lens may transition to a second state in which the activatable optical element has an optical function that does not form an image on the retina of the wearer's eyeball, and in a particular embodiment, an optical function that forms an image outside the retina of the wearer's eyeball, and that prevents or at least delays the progression of the abnormal refraction of the eyeball.

[0161] According to an embodiment of the present invention, the ophthalmic lens 2 further comprises an environmental sensor configured to measure environmental data and transmit the measured environmental data to the receiving means of the ophthalmic lens.

Claims

1. A contact lens having a holder with a refractive region having a first optical function based on a prescription of the wearer for correcting abnormal refraction of the wearer's eyes, intended to be worn in front of the wearer's eyes, and comprising a plurality of activatable optical elements smaller than the pupil of the wearer's eyes, In a first state, the activatable optical elements contribute, together with the rest of the contact lens, to forming an image of a distant object on the retina and providing a sharp image to the wearer, In a second state, the activatable optical elements do not form an image on the retina of the wearer's eye, and by virtue of the refractive region having the first optical function, provide a sharp image to the wearer and have a second optical function of delaying the progression of the abnormal refraction of the eye, The contact lens, wherein the second optical function is supported by at least three activatable optical elements arranged in concentric rings.

2. The contact lens according to claim 1, wherein in the second state, the activatable optical elements have a second optical function of forming an image outside the retina of the wearer's eye.

3. The contact lens according to claim 1 or 2, wherein the activatable optical elements have spherical power.

4. The contact lens according to any one of claims 1 to 3, wherein the activatable optical elements have aspherical power.

5. The activatable optical element has a refractive index that changes with temperature at a rate of 10 －３ / °C or more. The ophthalmic lens according to any one of claims 1 to 4, comprising a thermo-optical material that changes at a rate of / °C or more.

6. Further comprising at least one electrode arranged to change the temperature of the thermo-optical material, the at least one electrode being made of a conductive material having a transmittance of more than 80%, the contact lens according to claim 5.

7. A first substrate having a first refractive index, A second substrate having the first refractive index, the second substrate facing the first substrate and arranged to form a cavity between the first substrate and the second substrate, An electroactive material arranged between the first substrate and the second substrate, the electroactive material having a refractive index equal to that of the substrate in a first state, A first conductive layer arranged on the surface of the first substrate facing the electroactive material, A second conductive layer arranged on the surface of the second substrate facing the electroactive material, Further comprising, At least one of the surfaces of the substrate facing the electroactive material includes at least one activatable optical element, In the first state, the first substrate, the second substrate, the electroactive material, and the at least one activatable optical element have the same refractive index and participate in the first optical function. In the second state, the refractive index of the electroactive material is changed, thereby activating the second optical function of the at least one activatable optical element. The ophthalmic lens according to any one of claims 1 to 4.

8. A first substrate having a first refractive index, A second substrate having the first refractive index, wherein the second substrate faces the first substrate and is arranged to form a cavity between the first substrate and the second substrate. A first liquid disposed between the first substrate and the second substrate, the first liquid having a first refractive index equal to the refractive index of the first substrate and the refractive index of the second substrate. An activatable pump disposed between the first substrate and the second substrate, further comprising At least one of the surfaces of the substrate facing the first liquid comprises at least one activatable optical element. In the first state, the first substrate, the second substrate, the first liquid, and the at least one activatable optical element have the same refractive index and participate in the first optical function. In the second state, the activatable pump switches the first liquid to a second liquid having a second refractive index different from the refractive index of the first substrate and the refractive index of the second substrate, thereby activating the second optical function of the at least one activatable optical element. The ophthalmic lens according to any one of claims 1 to 4.

9. A first substrate having a first refractive index, A second substrate having the first refractive index, wherein the second substrate faces the first substrate and is arranged to form a cavity between the first substrate and the second substrate. An ultrathin deformable film disposed between the first substrate and the second substrate and comprising at least one activatable optical element. A first liquid disposed between the first substrate and the ultrathin deformable film, the first liquid having a first refractive index. A second liquid disposed between the second substrate and the ultrathin deformable film, the second liquid having a second refractive index different from the first refractive index. An activatable pump disposed between the first substrate and the second substrate, further comprising, In a first state, the at least one activatable optical element has the same curvature as the front surface of the ophthalmic lens, In a second state, the activatable pump changes the pressure of the second liquid to deform the ultrathin deformable film and change the curvature of the at least one activatable optical element, thereby activating the second optical function of the activatable optical element. The ophthalmic lens according to any one of claims 1 to 4.

10. A first substrate having a first refractive index, A second substrate having the first refractive index, the second substrate facing the first substrate and being arranged to form a cavity between the first substrate and the second substrate, A first dielectric liquid disposed between the first substrate and the second substrate, the first dielectric liquid having a first refractive index, A second dielectric liquid that is immiscible with the first dielectric liquid and is disposed between the first substrate and the second substrate, the second dielectric liquid having a second refractive index different from the first refractive index and a dielectric constant lower than the dielectric constant of the first dielectric liquid, At least one conductive layer disposed on at least one surface of the first substrate and the second substrate facing the second dielectric liquid forming droplets, the first dielectric liquid forming a surrounding, further comprising, In a first state, the at least one conductive layer generates an electric field that shapes the second dielectric liquid into droplets having the same curvature as the front surface of the ophthalmic lens. In a second state, the at least one conductive layer generates a non-uniform electric field that generates a dielectric force that forces the activatable optical element having a surface curvature different from the surface curvature of the ophthalmic lens to be formed in the second dielectric liquid that shrinks toward a region having a weaker electric field. The ophthalmic lens according to any one of claims 1 to 4.

11. A substrate having a first refractive index, At least one holographic optical element disposed on the surface of the substrate facing the wearer, At least one activatable image source, further comprising, In the first state, the substrate and the at least one holographic optical element have the same refractive index and participate in the first optical function. In the second state, the at least one activatable image source is reflected by the at least one holographic optical element towards the eye of the wearer, thereby generating light that activates the second optical function of the activatable optical element. The ophthalmic lens according to claim 1 or 2.

12. The abnormal refraction of the eye of the wearer corresponds to myopia, and in myopia, the activatable optical element does not form an image of a light ray on the retina of the wearer. The ophthalmic lens according to any one of claims 1 to 11.

13. The abnormal refraction of the eye of the wearer corresponds to myopia, and in myopia, the activatable optical element forms an image of a light ray in front of the retina of the wearer. The ophthalmic lens according to any one of claims 1 to 12.

14. Further comprising receiving means configured to receive data, and the transition between the first state and the second state of the ophthalmic lens is driven in real time based on the data received by the receiving means. The ophthalmic lens according to any one of claims 1 to 13.

15. The data received by the receiving means is related to the viewing distance or the viewing angle. The ophthalmic lens according to claim 14.

Images