CN101395520A - An improved device and method for manufacturing an electro-active spectacle lens involving a mechanically flexible integration insert - Google Patents
An improved device and method for manufacturing an electro-active spectacle lens involving a mechanically flexible integration insert Download PDFInfo
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- CN101395520A CN101395520A CNA2007800070892A CN200780007089A CN101395520A CN 101395520 A CN101395520 A CN 101395520A CN A2007800070892 A CNA2007800070892 A CN A2007800070892A CN 200780007089 A CN200780007089 A CN 200780007089A CN 101395520 A CN101395520 A CN 101395520A
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Abstract
An improved device and method for manufacturing electro-active spectacle lenses comprising electronic, electro-active optical, and bulk refractive optical elements is presented. In this method, electronic and electro-active optical elements are mounted to an optically transparent and mechanically flexible integration insert which is separate from any bulk refractive optical element(s). This method is advantageous for the manufacture of such spectacle lenses in that it allows for the mass production of many of the individual elements and enables the integration of the insert with the bulk refractive optical element(s) by multiple means. One such approach involves attaching the insert with a transparent adhesive to a rigid optical substrate and then encapsulating it by means of surface casting. Alternatively, the insert may be placed between the surfaces of a mold filled with an optical resin and encapsulated within the bulk refractive element as the resin is cured.
Description
Related application referring to
[0001] the application require following provisional application right of priority and this with referring to mode introduce its whole content:
The name of submitting on January 10th, [0002] 2006 is called the U.S. Patent application 60/757,382 of the improvement manufacture method (Improved method for manufacturing anelectro-active spectacle lens involving a mechanically flexible integrationinsert) of the electro-active spectacles eyeglass of mechanical bend integrated plugin " but comprise "; With
The name of submitting on January 19th, [0003] 2006 is called the U.S. Patent application 60/759,814 of the improvement manufacture method (Improved method for manufacturing anelectro-active spectacle lens involving a mechanically flexible integrationinsert) of the electro-active spectacles eyeglass of mechanical bend integrated plugin " but comprise ".
Technical field
[0004] the present invention relates to a kind of electro-active spectacles eyeglass and manufacture method thereof.
Background technology
[0005] presbyopia is the inefficacy that human lens is regulated, and, causes focusing on the state of near objects that is.The tool master that is used for correct presbyopia is the multifocal spectacles eyeglass.Multifocal lens is the eyeglass that has greater than a focal length (being refractive power), and its purpose is used for proofreading and correct focus issues in distance range.Work in the relatively large subregion of the correction long sight error (if present) of multifocal spectacles eyeglass by dividing eyeglass and near the subregion that reduces that is positioned at the eyeglass lower limb, and the influence with correct presbyopia of extra refractive power is provided.Transition between myopia and the distance vision correction zone can be sudden change, as in the situation of ultex and trifocal lens, perhaps can be level and smooth continuous, as in the situation of progressive lenses.These two kinds of methods exist may make the unsatisfied relevant issues of some patients.The visible separatrix that bifocus is relevant is unsatisfactory aesthetically, and the transitional region that progressive lenses is relevant can cause the video of fuzzy distortion, and this may cause some patient body discomforts.And, near-sighted correcting area is arranged near the eyeglass lower limb, need patient to adapt to and look sensation target nearby not too naturally down.
[0006] in order to address these problems, will need to develop the multifocal spectacles eyeglass, wherein for fear of distortion, myopia correction zone is big and be set to more near center of lens, and does not have visible edge.This proposition be, optical element is embedded in the traditional eyewear eyeglass, but this optical element switch and make it that addition power be not provided under starting state basically and required addition power is provided when starting.Though can adopt many technology to solve described problem, the form factors and the low power consumption of the strictness restriction of glasses require to have limited its feasibility.
[0007] optical device based on liquid crystal is the solution that attracts people's attention, and this is because the refraction coefficient of liquid crystal can change by form electric field on liquid crystal.Such electric field forms by the voltage more than 1 volt being applied to the electrode that is positioned on liquid crystal double-sided.Liquid crystal also can provide the necessary required scope of correct presbyopia addition power (zero diopter to+3.00D).At last, liquid crystal can be used for making having and avoids the major diameter optical device (greater than 10mm) that the uncomfortable institute of user must minimum dimension.
[0008] thin layer of liquid crystal (less than 10 μ m) can be used for constructing electricity activation multifocal optical device.When adopting thin layer, the shape and size of electrode are used in and form specific optical effect in the eyeglass.For example, by using the pattern electrodes of concentric ring shape, can in liquid crystal, dynamically form diffraction grating.This grating can and put on the voltage range of different rings respectively and produces addition power based on the width of the radius of described ring, described ring.Alternately, electrode can " pixelation ", and wherein electrode forms certain figure to form the array (being pixel) that can apply the free voltage figure.Such pel array can for example be arranged as cartesian array or six square arrays.Though this pel array can be used for forming addition power by the concentric ring electrode structure of simulated diffraction, but it also can be used for the eye deviation that is used for proofreading and correct in the mode of the positive atmospheric boil effect of ground-based astronomy lieutenant colonel higher degree with similar.This technology, i.e. adaptability optical device, can be refraction type or diffraction-type, and known in the prior art.Under arbitrary above-mentioned situation, the required operating voltage that is used for this liquid crystal thin layer is very low, usually less than 5 volts.Alternately, single continuous electrode can use with the special optical structure that is known as surface relief optics.This optical device comprises the physics substrate, and described physics substrate forms certain figure to have fixing refractive power and/or offset correction.By voltage is put on liquid crystal by electrode, refractive power/offset correction can be opened and turn-off by the mismatch and the coupling of refraction coefficient respectively.
[0009] thin layer of liquid crystal (usually〉50? m) also can be used for constructing electricity and activate multifocal optical device.For example, can adopt modal lens to form diffractive optical devices.Known in the prior artly be, modal lens comprise single low continuously conduction circular electrode and around and electrically contact to the single high conducting loop-shaped electrode of described single low continuously conduction circular electrode.When single voltage being put on high conducting ring electrode, low conductive electrode, promptly the resistor network of radial symmetry roughly forms voltage gradient on liquid crystal layer, and it causes the refractive index gradient in the liquid crystal subsequently.Liquid crystal layer with refractive index gradient will activate eyeglass and will be focused into the light that is mapped on it as electricity.Regardless of thickness of liquid crystal layer, electrode geometry or eye error that electric active element is proofreaied and correct, such electro-active spectacles eyeglass can be made by the mode that is similar to very much LCD, and, will benefit from ripe prior art like this.
[0010] commercialization of electro-active spectacles eyeglass needs the highly manufacture process of specialty.For manufacture process, desirable is to have the least possible individual components and these parts are produced in batches as much as possible.This is desirable, because it had both simplified assembling process, has reduced the required quantity of stock-keeping unit number (SKU) of individual components again.Reduce problem particular importance when handling eyeglass of SKU, this is because must consider large-scale variable, for example, and ball-post addition power, prismatic addition power, astigmatism axis and interocular distance.And manufacture process should adapt to different product structure (that is, patient's indication, framework type and framework size), is used to adapt to required total cost and the processing capacity of given patient indication with minimizing.Below the manufacturing process of Xiang Shuing focuses on this two problems, and so that a kind of manufacture method to be provided, its non-presbyopia for patient is proofreaied and correct insensitive and by using a spot of batch process parts to reduce the quantity of required SKU.
[0011] the present invention described here will allow effectively to make high-quality optical devices in the mode of very easily reproducing.The electricity that the invention provides disclosed herein activates eyeglass, and it proofreaies and correct traditional refraction error by the refractive power that forms ball, post or the two array mode in one embodiment.In another embodiment of the present invention, change by refractive power that forms ball, post or the two array mode and other part with refractive power of proofreading and correct the higher degree deviation, electricity activates the deviation of the higher degree of lenses which correct except conventional refractive error.In each case, embodiments of the invention recoverable presbyopia or simple long sight.It should be noted, embodiments of the invention disclose at this and have made that the electricity consumption activating part is positive by forming, spherical addition power and correct presbyopia is used for proofreading and correct traditional refraction error by the static state refraction addition power of ball, post or the two array mode but not electricity activates lens component.Further, the electricity that comprises in electric active element by layout of embodiments of the invention described here activates pel array or changes the deviation of proofreading and correct higher degree by the part in the non-electric activating part of lens blank.
Summary of the invention
[0012] in the first embodiment of the present invention, a kind of electro-active spectacles eyeglass comprises: optical element is used to provide first refractive power.The electro-active spectacles eyeglass further comprises the plug-in unit that is arranged in the optical element.At last, the electro-active spectacles eyeglass further comprises electric active element, and itself and optical element optical link, and is positioned at plug-in unit, and being used for provides second refractive power and refractive power is not provided when stopping to activate basically when activating.
[0013] in the second embodiment of the present invention, a kind of manufacture method of electro-active spectacles eyeglass comprises: electric active element is positioned in the plug-in unit to form assembled insert.The manufacture method of described electro-active spectacles eyeglass further comprises: by optically clear adhesive lens blank is placed on first of assembled insert, thereby forms first optical surface of electro-active spectacles eyeglass.The manufacture method of described electro-active spectacles eyeglass further comprises: mould is positioned on opposite with first second of assembled insert, thereby forms the chamber between mould and lens blank.The manufacture method of described electro-active spectacles eyeglass further comprises: fill described chamber with optical resin.The manufacture method of described electro-active spectacles eyeglass further comprises: solidify optical resin, thereby form second optical surface of electro-active spectacles eyeglass.
[0014] in the third embodiment of the present invention, a kind of manufacture method of electro-active spectacles eyeglass comprises: electric active element is positioned in the plug-in unit to form assembled insert.The manufacture method of described electro-active spectacles eyeglass further comprises: assembled insert is installed in the mold gasket.The manufacture method of described electro-active spectacles eyeglass further comprises: first mould and second mould are positioned on the mold gasket, and wherein first mould is relative to second mould to form the chamber between first mould and second mould.The manufacture method of described electro-active spectacles eyeglass further comprises: fill described chamber with optical resin.The manufacture method of described electro-active spectacles eyeglass further comprises: solidify optical resin, thereby form first and second optical surfaces of electro-active spectacles eyeglass.
Description of drawings
[0015] Fig. 1 illustrates to comprise that electronics, electricity activate the vertical view of the complete electro-active spectacles eyeglass of optics and whole refraction optical element;
[0016] but Fig. 2 is the vertical view that illustrates mechanical bend and optically transparent integrated plugin;
[0017] Fig. 3 is the vertical view that illustrates the integrated plugin that is added with transparent electrical lead;
[0018] Fig. 4 is the vertical view that illustrates the integrated plugin that is added with transparent electrical lead and driver ic electron device;
[0019] Fig. 5 is the enlarged drawing of the one arm of integrated plugin, wherein demonstrates two power supply lead wires and nine driver signals lead-in wires that are connected to integrated circuit;
[0020] Fig. 6 a is the vertical view of complete electric active element, and wherein electric active element is made of two substrates with concentric ring pattern electrodes and substrate with single continuous electrode;
[0021] Fig. 6 b is the vertical view with substrate of concentric ring pattern electrodes;
[0022] Fig. 6 c is the vertical view with substrate of single continuous electrode;
[0023] Fig. 6 d is that complete electric active element among Fig. 6 a is along the exploded view of axis A-A;
[0024] Fig. 6 e is the vertical view of alternative complete electric active element, and wherein electric active element constitutes by having coated with two substrates of the surface relief diffractive structure of single continuous electrode and substrate with single continuous electrode;
[0025] Fig. 6 f is the vertical view coated with the substrate of the surface relief diffractive structure of single continuous electrode of having that is used for alternative electric active element;
[0026] Fig. 6 g is the vertical view with substrate of single continuous electrode;
[0027] Fig. 6 h is that complete alternative electric active element among Fig. 6 e is along the exploded view of axis A-A;
[0028] Fig. 6 i is the vertical view of alternative complete electric active element, and wherein electric active element is made of two substrates with electrodes modal lens and substrate with single continuous electrode;
[0029] Fig. 6 j is the vertical view that is used for the substrate with electrodes modal lens of alternative electric active element;
[0030] Fig. 6 k is the vertical view with substrate of single continuous electrode;
[0031] Fig. 6 l is that complete alternative electric active element among Fig. 6 i is along the exploded view of axis A-A;
[0032] Fig. 7 a has shown the vertical view of the integrated plugin after the assembling.
[0033] Fig. 7 b has shown among Fig. 7 a along the exploded view of axis A-A, and wherein electric active element physics is placed in the integrated plugin and forms between electric active element and integrated plugin and be electrically connected;
[0034] Fig. 8 a is the vertical view of the integrated plugin after assembling fully, comprising all electrical leads, drive electronics and electric active element, the figure concentric ring electrode that described electric active element has is arranged in a certain way and is used to provide addition power to produce the diffraction eyeglass;
[0035] Fig. 8 b is the vertical view of the integrated plugin after assembling fully, comprising all electrical leads, drive electronics and electric active element, the graphical pixel polarizing electrode that described electric active element has is arranged in a certain way to proofread and correct opthalmic optics's error arbitrarily;
[0036] Fig. 9 a has shown complete assembled insert and finished lens blank, as the first step in first method of making the electro-active spectacles eyeglass;
[0037] Fig. 9 b has shown that complete assembled insert is laminated to finished lens blank, as second step in first method of making the electro-active spectacles eyeglass;
[0038] Fig. 9 c has shown that mould to the complete assembled insert that is attached to inverted combination and finished lens blank carries out resin and fills, as the third step in first method of making the electro-active spectacles eyeglass;
[0039] Fig. 9 d has shown the complete assembled insert and the finished lens blank of the combination after resin solidification and mould remove, as the 4th step in first method of making the electro-active spectacles eyeglass;
[0040] Fig. 9 e has shown in the alternative first step in first method of making the electro-active spectacles eyeglass when complete assembled insert is laminated to half finished lens blank the complete assembled insert and half finished lens blank of the combination after resin solidification and mould remove;
[0041] Figure 10 a has shown that complete assembled insert is positioned in the mold gasket, as the first step in second method of making the electro-active spectacles eyeglass;
[0042] Figure 10 b has shown that the surface of first mould limits the finished lens blank that is attached to mold gasket, as second step in second method of making the electro-active spectacles eyeglass;
[0043] Figure 10 c shown second mold attachment to mold gasket and also after this each mould be filled with resin, as the third step in second method of making the electro-active spectacles eyeglass;
[0044] Figure 10 d has shown the complete assembled insert and the finished lens blank of the combination after resin solidification and mould and mold gasket remove, as the 4th step in second method of making the electro-active spectacles eyeglass;
[0045] Figure 10 e has shown in the second alternative step in second method of making the electro-active spectacles eyeglass when the electro-active spectacles eyeglass is cast into half finished lens blank the complete assembled insert and half finished lens blank of the combination after resin solidification and mould and mold gasket remove;
Embodiment
[0046] passes through vertical view that electricity that the method that proposed makes activates (EA) eyeglass 100 as shown in fig. 1.This eyeglass comprises integrated plugin 110, and integrated plugin 110 has clear films formula signal electrical lead 120 and battery electrical leads 130, and electricity activates (EA) optical element 150 and integrated circuit 140 is attached to electrical lead 120 and 130.Fig. 2 has shown the integrated plugin of applied film electrical lead not or integrated circuit.The center ring 180 of integrated plugin 110 and " arm " 190 are used for providing physical support when introducing EA element 150 in the whole refraction optical element 160, and provide platform with transparent electrical lead 120 and 130 and to operate the required integrated circuit 140 of EA element attached.The EA element can have flat surfaces, curved surface and maybe can be designed to make one to have an even surface and another surface curvature.In most of the cases but be not in all cases, these surfaces are equidistant mutually.Integrated plugin 110 comprises the alignment edges 170 that is positioned at center ring 180 makes plug-in unit aim at EA element 150 with auxiliary.Plug-in unit must be optically transparent (for an obvious ornamental reason) and can be suitable for the various eyeglass radius-of-curvature that exist at the indication of different long sights.If plug-in unit is not suitable for the eyeglass radius-of-curvature at the long sight indication, then will form thicker eyeglass, this will be unacceptable for the wearer.Like this, plug-in unit can be formed by the flexible sheet cutting or the compacting of glass or plastics, and its thickness is in the scope of 50 μ m to 150 μ m.Does obtainable glass sheet have little thickness (Schott to 30 μ m on market? D 263 T and AF 45), and the many dissimilar plastics that thickness is suitable also can obtain therewith.Comprise center ring 180 with opening and the discrete arm 190 that radially extends from described ring though integrated plugin is shown as at this, but plug-in unit needn't be this shape.In other specific embodiment, plug-in unit can adopt any suitable form, comprising the opening that is used for the EA element and around the material of opening with support film formula signal electrical lead, diaphragm type battery electrical lead and integrated circuit.In the scheme as example only, plug-in unit can be the flat, annular shape, wherein has central opening and alignment edges.
[0047] electrical lead 120 and 130 can be by transparent conductive oxide (for example ITO, ZnO, SnO
2) or the film of conducting polymer (for example polyaniline, PEDOT:PSS) make, and put on the surface of plug-in unit 110, as shown in Figure 3.Electrical lead can be added on the plug-in unit by adding or deleting to handle.Add to handle and to comprise (for example) serigraphy or thin film deposition by the electrical lead material mask.Delete that processing will comprise (for example) with the plug-in unit part or all coated with desirable material, and remove redundance by the figure resist or the laser ablation process of writing direct afterwards.In an embodiment of the present invention, the thickness of the material of structure lead-in wire can be 1? m or littler, in a preferred embodiment, this thickness is 100nm or littler.In other embodiments of the invention, lead-in wire can be arranged on plug-in unit two-sided.
[0048] electrical lead makes that comprising the drive electronics that is used for the EA element can directly be installed to plug-in unit at interior integrated circuit (IC) 140, as shown in Figure 4.The enlarged drawing of one of described arm as shown in Figure 5, wherein, for example, two power supplys (for example battery) electrical lead 130 (1 pressure-wire and 1 ground wire) is shown as with 9 bars electrical leads 120 (8 being used for each other driver signal line of level and 1 ground wire mutually) and is connected to IC.IC can be provided to each signal electrical lead with different voltages based on desirable phase rank.The quantity of signal electrical lead depends on the structure (this will discuss hereinafter) of EA element and can be for example few to 34 of 3 or as many as.The width of lead-in wire depends on the width in free space, required number of leads and the required internal lead of electrical isolation space.For example, 100? the lead-in wire that m is wide and 100? the wide space of m can be used for signal electrical lead, and 300? the lead-in wire that m is wide and 300? the wide space of m can be used for battery electrical leads.Signal electrical lead is by electrically contacting the pattern electrodes that is connected to the EA element.At the EA element is to have in the embodiment of the invention of diffraction eyeglass of figure concentric ring electrode, and the relative size of the pattern electrodes in element (radius and width) limits the addition power of diffraction grid structure.Put on the different voltage amplitudes of unlike signal electrical lead (and thereby put on pattern electrodes) by IC, determine phase profile that in liquid crystal layer, forms and the diffraction efficiency of so determining the EA element (focusing on the part of incident light).Like this, the single IC design that is assigned single SKU quantity can be used for driving any EA element, regardless of its addition power that provides.In the embodiment of the invention of EA element pixelation, patterned electrode device, refractive power and/or offset correction are dynamic fully and definite by the voltage graph that is addressed to pel array.At the EA element is in the embodiment of the invention of modal lens, and the amplitude that puts on the voltage of high conductivity ring electrode limits addition power, and wherein, usually, the voltage that is applied is high more, and then the amount of addition power is big more.At the EA element is in the embodiment of the invention of surface relief optics, and refractive power/offset correction is revised by the figure that is sent to substrate, but this optical device is made for to form refraction coefficient coupling and mismatch by applying voltage dynamically.
[0049] for ease of plug-in unit 110 is connected to external power, little electric connector (not shown) also can be attached to plug-in unit.Compare with contacting of thin film battery electrical leads 130 with forming after eyeglass is assembled fully, such connector is much will be on entity firm and will help to reduce the quantity of manufacturing step.If such connector is made by the combination of materials of enough soft electrical isolation and conduction, then can be designed to use existing sword cutting tool by machine work and concordant with lens edge and acceptable the electrical connection still be provided.For example, connector can be the plastics of fritter, and its refraction coefficient strictness is matched with the refraction coefficient of Integrated lens material, and this Integrated lens material comprises the lead that the suitable mode of use such as electroconductive binder is attached to copper (or soft metal) system of battery lead.After Integrated lens (also being made of plastics) forms around plug-in unit and connector, the machining steps that is generally used for forming the outer peripheral edge of finished lens can easily be cut plastics fritter and copper conductor, wherein manifest lead to be connected to power supply subsequently.
[0050] integrated plugin 110 has been designed to have a plurality of installation sites, make IC 140 can be set to the center of EA element 150 at a distance of different radial distances, to be adapted to the available spectacle lens frame of different size.Like this, IC always can be installed to be center with the EA element at a distance of the radial distance that is fit to, thereby it can not be cut off when eyeglass is cut to just size by sword.Three IC are shown as and are installed to plug-in unit, and this only is used for illustrative purpose; It should be essential that an IC in fact, is only arranged.And, only make single plug-in unit with a plurality of IC installation site, reduced the quantity of stock-keeping unit (SKU).
[0051] EA element 150 and component parts thereof are as shown in Fig. 6 a-6c.The EA element comprises substrate, and it for example can be made by inorganic material such as glass or sapphire or the organic material such as acrylate, that is, the material that is generally used for forming lens by a class is made.In an embodiment of the present invention, three substrates can be used for constructing the EA element altogether.In such embodiments, two substrates 200 have litho pattern transparency electrode 220 (Fig. 6 b) on a surface, and substrate 210 has the single continuous transparency electrode (Fig. 6 c) as benchmark (ground connection) on two surfaces.In another embodiment of the present invention, only use two substrates.In such embodiments, a substrate 200 has litho pattern transparency electrode 220 (Fig. 6 b) on a surface, and substrate 210 has the single continuous transparency electrode (Fig. 6 c) as benchmark (ground connection) on a surface.As previously mentioned, electrode can be the concentric ring figure with generation addition power (with correct presbyopia), or is any optical errors of pel array figure with the correction eyes, comprises for example presbyopia and height tolerance.
[0052] in the embodiment of the invention with figure concentric ring electrode 220, EA element addition power, thereby pattern electrodes 220 is used for being limited to the multi-level diffactive lens chip architecture of liquid crystal thin layer.When using multi-level diffraction optical device, each signal electrical lead is used to drive a plurality of figure concentric ring electrodes, to produce correct phase profile in liquid crystal layer.Though for simply only shown 10 pattern electrodes (Fig. 6 a), common eyeglass can comprise for example 3000 discrete electrodes of as many as, do these electrodes have for example from 1? m to 100? the different in width of m.In the embodiment of the invention with pixelation EA element (Fig. 8 b), the quantity of pixel is can be for example few to 100 or as many as 1,000,000.The size difference of each pixel, and for example can be in 1? in the scope of m to 1mm.
[0053] in another embodiment of the present invention, shown alternative EA element 151 (Fig. 6 e), its use has two substrates 400 of the surface relief optics 420 (only being shown as the diffraction eyeglass by example at this) coated with single continuous electrode (not shown), has the flat substrate 200 of pattern electrodes 220 to substitute.In this alternate embodiments, known in the prior art surface relief optics produces the refractive power of desired amount, and liquid crystal layer is as refraction coefficient Dynamic matching material.Apply under the voltage first, there is not refraction basically in the refraction coefficient of the refraction coefficient of liquid crystal and substrate 400 roughly the same (coupling).But incident light has only experienced single refraction coefficient, just look like the EA element be the flatness layer of homogeneous material.Apply under the voltage second, the refraction coefficient of liquid crystal different with the refraction coefficient of substrate 400 (mismatches) causes existing the incident light refraction owing to the coefficient mismatch forms to differ.In the preferred embodiment of the present invention, when no-voltage puts on the EA element and when it was lost efficacy safely (apply zero addition power is zero under the voltage), the refraction coefficient coupling is achieved.The eyeglass that non-safety lost efficacy does not wish to adopt, and this may be dangerous because of introducing refractive power suddenly in the non-suitable time (for example when driving) for the wearer.The surface relief optics that produces addition power only shows that as example in other embodiments, it can be used for producing the phase profile, and these phase profiles are similar to the phase profile that can be produced by the pixelation EA element with pattern electrodes.
[0054] alternative EA element 151 constitutes by having the substrate 210 (Fig. 6 g) as benchmark (ground connection) that has single continuous transparency electrode coated with two substrates 400 (Fig. 6 f) of the surface relief optics 420 of single continuous electrode with on two-sided.A substrate 210 (Fig. 6 g) that has single continuous transparency electrode on two-sided is identical with the substrate 210 of the EA element that is used to have pattern electrodes.The exploded view along axis A-A of Fig. 6 e is presented among Fig. 6 h, and wherein, surface relief diffractive structure is high-visible.The benefit of this embodiment is, because the inside surface of each substrate only comprises single continuous electrode now, thereby the quantity of electric contact 230 reduces to four, and two are used for connecting electrical ground, and two are used to form actuator voltage and connect.In another embodiment of the present invention, only use two substrates.In such an embodiment, a substrate 400 has surface relief optics 420 (Fig. 6 f) on a surface, and substrate 210 has the single continuous transparency electrode (Fig. 6 g) as benchmark (ground connection) on a surface.
[0055] in another embodiment of the present invention, alternative EA element 152 by having electrodes modal lens two substrates 500 (Fig. 6 j) and a substrate 210 (Fig. 6 k) that has single continuous electrode on two-sided as benchmark (ground connection) constitute.Electrodes modal lens comprises: have the single continuous circular electrode 520 of low electric conductivity material and the single continuous loop electrode 521 with high conductivity material.A substrate (Fig. 6 k) that has single continuous transparency electrode on two-sided is identical with the substrate 210 of the EA element that is used to have pattern electrodes.The exploded view along axis A-A of Fig. 6 i is presented among Fig. 6 l, wherein, has shown being electrically connected between low electric conductivity electrode 520 and high conductivity electrode 521.The benefit of this embodiment is, because the inside surface of each substrate only needs to electrically contact with the single of high conductivity ring electrode now, thereby the quantity of electric contact 230 reduces to four, and two are used to form electrical ground and connect, and two are used to form actuator voltage and connect.For example being electrically connected between contact 230 and high conductivity ring electrode 521 forms by transparent membrane electrode or conductive adhesion lead-in wire (not shown).In another embodiment of the present invention, only use two substrates.In such an embodiment, a substrate 500 has electrodes modal lens (Fig. 6 j) on a surface, and substrate 210 has the single continuous transparency electrode (Fig. 6 k) as benchmark (ground connection) on a surface.
[0056] substrate 200,400 and 500 has electric contact 230 near periphery, in order to using conductive film bus system (not shown) to be connected respectively to pattern electrodes 220,420 and 521, and be designed to be arranged on integrated plugin 110 on signal electrical lead 120 aim at.Comprise in the EA element in the embodiment of the invention of two substrates 200,400 or 500, plug-in unit can have the signal electrical lead that is arranged on two-sided, can be used for forming with the lip-deep electric contact 230 of two substrates 200,400 or 500 contacting.In such embodiments, an integrated circuit 410 can be arranged on each side of integrated plugin 110, perhaps, can form by the electric pathway in the plug-in unit from an integrated circuit to the two-sided electrical connection of plug-in unit.Electric pathway is known in the art, and is made of the physically opening in the electrical insulation material layer, and described physically opening comprises conductive material, connects to realize the discrete electric of passing electrically insulating material thickness.Being electrically connected between benchmark (ground connection) substrate and integrated plugin for example forms by wire-bonds or conductive epoxy resin trace line, as shown in Fig. 7 a-7b.Along the periphery of reference substrate 210 and the alignment edges 171 of aliging, help making the EA element correct orientation in the integrated plugin with counter structure 170 on the integrated plugin 110.Preferably, integrated plugin and EA element design are for rotating symmetry with respect to its alignment edges.Therefore, being electrically connected between EA element and integrated plugin can form along any integrated plugin alignment edges 170 with adjacent signals electrical lead terminal, or can form along any EA element alignment edge 170 with electric contact.
[0057] in order to assemble EA element 150, each substrate surface that comprises electrode is provided with liquid crystal alignment layers (not shown, but known in the prior art), thereby forms given liquid crystal alignment direction.Like this, substrate 200 will have the surface that comprises the pattern electrodes that is provided with liquid crystal alignment layers, and substrate 210 will have two surfaces that comprise the single continuous electrode that is provided with liquid crystal alignment layers.Liquid crystal alignment layers is the film (thickness is less than 100nm usually) of polyimide material, and it is applied to directly contact the surface of liquid crystal.The surface of these films before assembling EA element by the fabric such as velvet along a direction friction or polishing (technique known in the prior art).When liquid crystal molecule directly contacts this when surface, described molecule deflection ground is in the plane of substrate and along the direction that polyimide layer is rubbed to be arranged.No matter use concentric ring electrode, pixellated electrodes, electrodes modal lens or surface relief structure, this process is all identical for all EA elements.
[0058] in the embodiment of the invention of using nematic crystal, must use the problem (that is, the light of different polarization by material time have different refraction coefficient) of three substrates to overcome the nematic crystal polarization sensitivity.After the preparation alignment, three substrates pile up then to allow to form two liquid crystal cells (this element have liquid crystal layer and have liquid crystal layer is defined in therebetween two substrate surfaces).For clarity, liquid crystal layer is not shown in the drawings.Two substrates 200 with pattern electrodes are arranged on the both sides of the substrate 210 that comprises single continuous electrode, make to have the substrate surface of pattern electrodes towards the substrate surface with continuous electrode.Like this, the inside surface of two unit all has reference electrode and pattern electrodes.Described substrate piles up in given unit in a certain way, the aligning direction antiparallel (direction differs 180 degree) of the liquid crystal that forms by two alignment, and but, the aligning direction of a unit is perpendicular to the aligning direction of Unit second.Antiparallel with vertical the arranging of this alignment can be worked the EA element with nematic crystal in unpolarized ambient light.The EA element of this embodiment assembling can be as shown in Fig. 6 a according to the present invention.Fig. 6 d has shown the exploded view along axis A-A of Fig. 6 a.The polarization sensitivity of nematic crystal is independent of all aforementioned structure of EA element, no matter uses concentric ring electrode, pixellated electrodes, electrodes modal lens or surface relief structure, and all EA elements all need to use the layer of two homeotropic alignments.
[0059] in another embodiment of the present invention, use Polarization-Sensitive cholesteryl liquid crystal will not need second layer liquid crystal, in this case, will only need two substrates, one has pattern electrodes and another has continuous benchmark (ground connection) electrode.Cholesteryl liquid crystal is and the similar class material of nematic crystal that its something in common is, constitute molecule and be easy to along the single direction orientation, and its difference is that the orientation preferred orientations is reversed along the given axis in the material.If the value of the degree of reversing (along the distance of described axis, wherein being orientated preferred orientations along described axis 360 degree rotations) is equal to or less than light wavelength, then the refraction coefficient of described light is independent of its polarization substantially.For the EA element with nematic crystal, alignment is arranged on the substrate surface that comprises electrode.But, needn't aim at substrate again and make alignment antiparallel.In addition, because a unit is only arranged, thereby the vertical relation between the unit is unnecessary or impossible.In a preferred embodiment of the invention, the alternative EA combination of elements of Polarization-Sensitive cholesteryl liquid crystal and the employing surface undulation diffraction eyeglass shown in Fig. 6 e-6h is used.Preferably, this embodiment only needs electric active material and two electric contacts of two substrates (substrate 400 and a substrate 210), simple layer, has greatly simplified the manufacturing of EA element.No matter use concentric ring electrode, pixellated electrodes, electrodes modal lens or surface relief structure, this process is all identical for all EA elements.
[0060] assembling the gross thickness of EA element fully should be less than 200 μ m (can be suitable with the thickness of integrated plugin), with the thickness of the EA eyeglass that reduces to complete.For example, when structure had the Polarization-Sensitive EA element of nematic crystal layer of two 5 μ m, the thickness of three independent substrates should be less than 60 μ m (3 x, 60 μ m+2 x, 5 μ m=190 μ m).The gross thickness of EA element can be 200 in more preferred embodiment of the present invention? m or littler is to allow simpler manufacturing.For example, when structure had the Polarization-Sensitive EA element of nematic crystal layer of two 5 μ m, the thickness of three independent substrates should be less than 196 μ m (3x 196 μ m+2 x 5 μ m=598 μ m).The independent EA element of making different focal (addition power) also helps further to make manufacture process simply effective.Be independent of integrated plugin and make the EA element, reduced SKU quantity, this is because do not need now for addition power and IC position each to be combined to form the SKU number; Only need to be used for the SKU number of plug-in unit, IC and each addition power value, that is, adopt additional calculation rather than multiplication to calculate.
[0061] assembling EA element is arranged on the center of integrated plugin 110, make the electric contact 230 on the substrate aim at (Fig. 7 a-7b) with the corresponding electrical lead 120 on integrated plugin 110, wherein alignment edges 171 on the reference substrate 210 and the alignment edges 170 on the integrated plugin help to realize this process.Being electrically connected between EA element and the plug-in unit can be passed through accomplished in many ways, comprises (but being not limited only to) conductive adhesion, metal bump combination and wire-bonds.The EA element is set in the plug-in unit and can be accomplished in several ways.In the assembling example that shows in Fig. 8 a, the EA element with figure concentric ring electrode is set in the integrated plugin.In the assembling example that shows in Fig. 8 b, the EA element with graphical pixel polarizing electrode is set in the integrated plugin.No matter use concentric ring electrode, pixellated electrodes, electrodes modal lens or surface relief structure, this process is all identical for all EA elements.
[0062] in the one embodiment of the present of invention with three substrates, reference substrate 210 is arranged on the center of plug-in unit, and electric contact is formed between reference substrate and the ground signalling electrical lead.Then, the substrate 200 with pattern electrodes is attached to the both sides of reference substrate 210 by the optically clear adhesive such as NOA65 (Norland Products), makes electrode surface face mutually.Before attached substrate, apply liquid crystal alignment layers, and make described unit orientation as previously mentioned.Described unit can be filled then with liquid crystal and by contact 230 and be connected to signal electrical lead on the plug-in unit, regardless of the sequencing of the two.No matter use concentric ring electrode, pixellated electrodes, electrodes modal lens or surface relief structure, this process is all identical for all EA elements.
[0063] in another embodiment of the present invention, one (comprising a reference substrate 210 and a substrate 200 with pattern electrodes) assembled (as previously mentioned) only arranged in two unit and be electrically connected to plug-in unit with three substrates.Subsequently, have second substrate, 200 correct orientations of pattern electrodes and be attached to the opposition side of reference electrode, and form and be electrically connected.In this embodiment, described unit can be filled with liquid crystal when it is assembled or after two unit are all assembled.No matter use concentric ring electrode, pixellated electrodes, electrodes modal lens or surface relief structure, this process is all identical for all EA elements.
[0064] in having another not preferred embodiment of the present invention of three substrates, by making the crooked or otherwise temporary transient physical deformation of plug-in unit make the EA element be assemblied in the opening, the EA element is all assembled fully and is included in the flexible integrated plugin regardless of its structure.
[0065] comprise in the embodiment of the invention of EA element of Polarization-Sensitive cholesteryl liquid crystal in employing, only need two substrates, one has reference electrode and another has pattern electrodes.In such embodiments, greatly simplified the introducing step of two substrate EA elements, this is because the EA element can be assembled before processing fully, only is remaining treatment step and form with being electrically connected of plug-in unit.No matter use concentric ring electrode, pixellated electrodes, electrodes modal lens or surface relief structure, this process is all identical for all EA elements.
[0066] in the assembling of integrated plugin, uses multi-part will need to use and seal bonding agent or resin, thereby make complete assembled insert (it comprises the EA element) physically stable and form at least one finished surface of final eyeglass.Be to be noted that and use term " finished lens blank " expression, completed on two-sided and have the optical device of definite refractive power.Half finished lens blank has completed on single face and has not had definite refractive power.Finished lens blank may not be half finished blank or all not completions of both sides.Half finished lens blank or the finished lens blank that approach can be represented in term " wafer ".At last, the term base substrate represents that such lens article is not cut or be configured as the net shape of spectacle lens frame as yet by sword.
What [0067] be further noted that is, finished lens is made by this way proofreading and correct traditional ball and post optical parallax, or with creative method manufacturing to proofread and correct the deviation of higher degree.The ball that the manufacturing correction is traditional and the eyeglass of post refraction error are known in the art.In order to proofread and correct the human eye deviation of higher degree, the refractive power of eyeglass will be formed into to have localized optical power and changes to proofread and correct the deviation of higher degree, is specially at least a in type, refractive power and the position deviation.In most of the cases, the deviation of proofreading and correct higher degree is determined by the wavefront analysis to the wearer's of described completion electro-active spectacles eyeglass eyes.The deviation of proofreading and correct higher degree can realize by local change of the refractive power that forms described lens blank, and can realize by the exposed surface of not pasting electric active coating is carried out machine work.It should be understood that machine work can comprise that lens surface is handled and the process of polishing.Alternately, local change can realize in the following manner, that is, the thin resin layer that comprises in the described lens blank solidified and cause taking place in the lens blank that refraction coefficient is local changes.Described local the change also can be achieved when adding electric active coating in the lens blank,, is solidified to form described local the change by making the surperficial foundry resin layer between the contiguous place of described lens blank and electric active coating that is.The deviation of proofreading and correct higher degree also can realize by using the pixilated optic as shown in Fig. 8 b.
[0068] is used for integrated plugin 110 is introduced two kinds of methods of whole refracting element 160 as shown in Fig. 9 a-9e and Figure 10 a-10e.First method adopted near central authorities, have flat site 310 plastic, finished lens base substrate 300 (Fig. 9 a), assembled insert 110 by the optically clear adhesive stratification to flat site 310 (Fig. 9 b).To help to limit any possibility bending of the EA element 150 that can make the liquid crystal layer distortion and cause performance decline near the flat site 310 of centre.Mould 330 is inverted and is placed to this sub-component then, and wherein mould 330 limits other finished surface of eyeglass.Mould 330 is filled with UV or heat sensitive resin 320 then and is solidified (Fig. 9 c).After resin 320 solidified, eyeglass shifted out (Fig. 9 d) and prepares any other processing so that it is assembled in the suitable spectacle lens frame from mould 330." surface casting " technology that is used for the optical quality surface is known in the prior art.It should be noted to be different from used material in the surperficial cast layer 320 though make the material of finished lens blank 300 or half finished lens blank 340, but two kinds of materials should have roughly the same refraction coefficient.
[0069] lens blank that is adopted in said method can be finished blank or half finished blank.Plug-in unit is combined with finished blank 300, the optical surface mechanical polishing/polishing behind the stratification, but need patient's indication information and framework shape (that is tailor-made product).Use the mechanical polishing/polishing step after half finished blank 340 (Fig. 9 e) will need stratification, but without any need for patient's indication information.Because but half finished lens direct marketing is to producing factory in batches, thereby this will be a kind of method for optimizing, and, will can not hinder goods from lens manufacturer to patient and the information flow that has built up like this.
[0070] as the alternative scheme of stratification method, integrated plugin 110 can be cast in the volume of the cured resin that forms hyperopic lens.The technology that is used for casting from liquid resin whole eyeglass is known in the prior art.Casting EA eyeglass can realize in the following manner that promptly, at first the arm 190 with plug-in unit 110 is installed to rigidity installing ring/mold gasket 400, as shown in Figure 10 a.Stiffening ring 400 (temporarily) then is installed to mould 420, and the surface of mould 420 defines one of finished surface of EA eyeglass (Figure 10 b).Second mould 430 is installed to stiffening ring 400 then in a similar manner to form the chamber, and wherein integrated plugin 110 is suspended at (Figure 10 c) between two die surfaces.Described chamber is filled with the resin 410 that is fit to then and is cured.After resin 410 solidifies, mould 420 and 430 and stiffening ring 400 be removed, the eyeglass that the result forms is prepared any other processing it is assembled to (Figure 10 d) in the suitable spectacle lens frame.For ease of manufacture process, rigidity installing ring/mold gasket 400 can be made by the material of inexpensive and injection moldable, thereby this material can disposablely use.In the stratification method, can use molded half finished blank 440 (Figure 10 e) to substitute molded finished blank.The EA eyeglass of completion or half completion can be made by this method, wherein, and based on foregoing former thereby preferably make half finished lens.
[0071] benefit of these two kinds of methods is, the parameter of assembling the EA element fully all is independent of the requirement of patient's long sight and/or astigmatism correction and these is required insensitive.Make finished lens (by stratification or casting) though need patient to indicate, but the rotation symmetry of plug-in unit is orientated it in a certain way, is independent of patient's astigmatism axis and acceptable aesthetically position thereby IC is arranged on.Make half finished lens (by stratification or casting, seeing Fig. 9 e and Figure 10 e) even easier, this is to be increased after the eyeglass manufacturing because of distance/astigmatism correction.Independence between the rotational symmetry of near, distance vision correction and integrated plugin allows to adopt ripe existing eyeglass manufacturing and treatment technology, and only needs carry out little modification to EA introducing technology.By arbitrary foregoing method manufacturing half finished blank, allow to use the technology that is known as free forming, to form finished lens from half finished blank.Free forming is a kind of computer numerical controlled (CNC) machine work form, is used for indicating polishing and being polished to half finished lens blank surface according to patient, and this is known in the art.The advantage of free forming is, though it is used to form the distance vision correction surface, in certain embodiments of the invention, it also can be used for forming the surface of proofreading and correct the higher degree deviation.
[0072] though these two kinds of methods provides many benefits for making the EA eyeglass, but its effect depends on the matching capacity with the refraction coefficient of all related optical materials and parts.Does (error span exist if refraction coefficient is unequal? 0.02 interior), then the edge of integrated plugin and EA element can be visual, this product for patient with unacceptable.Fortunately, have many optical materials, its can demonstrate wide region refractive index values and with the different disposal technical compatibility.But, a kind of being limited in uses traditional photoetching (and relevant organic solvent) to limit figure EA electrode, makes inorganic material more be applicable to backing material.For example, the inorganic material that is fit to comprises glass and sapphire, and wherein, because sapphire expensive, thereby glass will be preferred, rather than sapphire.And, for the suitable processing and selection of the solvent that is used to handle electrode, can use the organic material the film that forms such as acrylate to make the EA element.The glass manufacturer of optics industry, for example Schott, Hoya and Ohara, the glass of its supply have from a little less than 1.50 to a little more than 2.00 refraction coefficient scope, and this numerical range has covered the required scope of ophthalmology industry fully.The refraction coefficient of different monomer (resin) and polymkeric substance (plastics) has also covered the value of wide region, but does not reach the high numerical value of optical glass at present.Usually, " greatly " refraction coefficient of commercial optical resin and plastics is in 1.60 to 1.70 magnitude, and this numerical range is mainly driven by the ophthalmology industry.Under the overlapping situation of wide region, the coupling of refraction coefficient requires it seems and does not have very big problem in the refractive index values of different materials.But, the preferable range that has refraction coefficient.Many optical materials are easy to have and approach 1.50 refraction coefficient, and in one embodiment of the invention, the refractive index values of each parts is matched to and approaches 1.50.If use refraction coefficient to approach 1.66 Polarization-Sensitive cholesteryl liquid crystal, then in another embodiment of the present invention, the refractive index values of each parts is matched to and approaches 1.66.In order to reduce coupling each required number of components of refraction coefficient, in certain embodiments of the invention, when using stratification method construct eyeglass, one of substrate that is used to construct the EA element can be replaced by finished lens blank or half finished lens blank.In such embodiments, the structure of complete integrated plugin will comprise completion or half finished lens blank.
[0073] summarized the method for making the EA eyeglass more than, wherein the EA eyeglass passes through the dynamic electricity activation lenses which correct presbyopia of use based on liquid crystal, and this dynamically electric activation eyeglass embeds and provides in the traditional eyewear eyeglass of distance vision correction.Though the object of the invention is correct presbyopia, but the method that is proposed also can be used for constructing eyeglass to proofread and correct other collimation errors, for example the eye deviation of higher degree.
Claims (26)
1. electro-active spectacles eyeglass comprises:
Optical element is used to provide first refractive power;
Plug-in unit, it is arranged in the described optical element; With
The electricity active element, itself and described optical element optical link, and are positioned to contact with described plug-in unit, thereby second refractive power are provided when activating and refractive power is not provided when stopping to activate basically.
2. eyeglass as claimed in claim 1, wherein, described optical element comprises:
Finished lens blank is used to form the first surface of described optical element; With
The shaping optical resin is used to form described optical element and described first surface opposed second surface.
3. eyeglass as claimed in claim 1, wherein, described optical element comprises:
Half finished lens blank is used to form the first surface of described optical element; With
The shaping optical resin is used to form the second surface of described optical element, and described second surface is opposite with described first surface.
4. eyeglass as claimed in claim 1, wherein, described optical element comprises:
The shaping optical resin is used to form the first surface and the second surface of described optical element, and wherein, described second surface is opposite with described first surface.
5. eyeglass as claimed in claim 1, wherein, described first refractive power is selected from:
The zero diopter refractive power, spherical refractive power, cylindricality refractive power, and ball-post refractive power;
Wherein, described second refractive power is selected from:
Zero diopter refractive power and spherical refractive power.
6. eyeglass as claimed in claim 1, wherein, the visual problem that described first optical power correction is selected from the group that comprises following problem:
Myopia, long sight, presbyopia, and astigmatism;
Wherein, the visual problem from the group that comprises following problem, selected of described second optical power correction:
Myopia, long sight, and presbyopia.
7. eyeglass as claimed in claim 1, wherein, described optical element is suitable for proofreading and correct the deviation of the higher degree of eyes.
8. eyeglass as claimed in claim 1, wherein, described electric active element is suitable for proofreading and correct the deviation of the higher degree of eyes.
9. eyeglass as claimed in claim 1, wherein, described plug-in unit comprises:
Center ring is used to locate described electric active element;
Periphery material, it radially is provided with around described center ring; With
Power path, it is positioned on the described periphery material, is used to provide the electric connection along described periphery material to described center ring.
10. plug-in unit as claimed in claim 9, wherein, described periphery material comprises a plurality of arms that radially are provided with around described center ring.
11. plug-in unit as claimed in claim 9, wherein, described power path comprises:
A plurality of signal electrical lead, it is arranged in the described center ring and along described periphery material and extends;
Integrated circuit, it is electrically connected to described signal electrical lead, is used for electric power is provided to described electric active element; With
A pair of battery signal lead-in wire, it is electrically connected to described integrated circuit and is arranged to away from the described a plurality of signal electrical lead along described periphery material.
12. eyeglass as claimed in claim 1, wherein, described electric active element comprises:
First substrate;
A plurality of pattern electrodes, it is arranged on the surface of described first substrate;
Second substrate, it is arranged on described first substrate;
Electrode, it is arranged on the surface of described second substrate; With
Liquid crystal, it is arranged between described pattern electrodes and the described electrode.
13. eyeglass as claimed in claim 1, wherein, described electric active element comprises:
First substrate;
A plurality of first pattern electrodes, it is arranged on the surface of described first substrate;
Second substrate, it is arranged on described first substrate;
First electrode, it is arranged on the first surface of described second substrate;
Second electrode, it is arranged on the second surface of described second substrate, and wherein said second surface is opposite with described first surface;
The 3rd substrate, it is arranged on described second substrate;
A plurality of second graph electrodes, it is arranged on the surface of described the 3rd substrate;
First liquid crystal, it is arranged between described a plurality of first pattern electrodes and described first electrode; With
Second liquid crystal, it is arranged between described a plurality of second graph electrode and described second electrode.
14. eyeglass as claimed in claim 1, wherein, described electric active element is suitable for providing addition power.
15. eyeglass as claimed in claim 1, wherein, described electric active element is a diffraction concentric ring electricity active element.
16. eyeglass as claimed in claim 1, wherein, described electric active element is a pixelation electricity active element.
17. eyeglass as claimed in claim 1, wherein, described electric active element is a surface undulation electricity active element.
18. eyeglass as claimed in claim 1, wherein, described electric active element is a modal lens electricity active element.
19. the manufacture method of an electro-active spectacles eyeglass, described method comprises:
Electric active element is positioned in the plug-in unit to form assembled insert;
By optically clear adhesive lens blank is placed on first of described assembled insert, thereby forms first optical surface of described electro-active spectacles eyeglass;
Mould is positioned at described assembled insert with described first opposite second on, thereby between described mould and described lens blank, form the chamber;
Fill described chamber with optical resin; With
Solidify described optical resin, thereby form second optical surface of described electro-active spectacles eyeglass.
20. as the method for manufacturing lens of claim 19, wherein, described lens blank comprises finished lens blank.
21. as the method for manufacturing lens of claim 19, wherein, described lens blank comprises half finished lens blank.
22. the manufacture method of an electro-active spectacles eyeglass, described method comprises:
Electric active element is positioned in the plug-in unit to form assembled insert;
Described assembled insert is installed in the mold gasket;
First mould and second mould are positioned on the described mold gasket, and wherein said first mould is relative to described second mould to form the chamber between described first mould and described second mould;
Fill described chamber with optical resin; With
Solidify described optical resin, thereby form first and second optical surfaces of described electro-active spectacles eyeglass.
23. as the method for manufacturing lens of claim 22, wherein, described first optical surface comprises finished lens blank.
24. as the method for manufacturing lens of claim 22, wherein, described first optical surface comprises half finished lens blank.
25. as half finished lens blank of claim 21 or 24, wherein, described half finished lens blank is further processed to form finished lens blank.
26. eyeglass as claimed in claim 1, wherein, described electric active element comprises:
First substrate;
Second substrate; With
Can change the material of refraction coefficient by electric mode, it is arranged between described first substrate and described second substrate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75738206P | 2006-01-10 | 2006-01-10 | |
| US60/757,382 | 2006-01-10 | ||
| US60/759,814 | 2006-01-19 |
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| Publication Number | Publication Date |
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| CN101395520A true CN101395520A (en) | 2009-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800070892A Pending CN101395520A (en) | 2006-01-10 | 2007-01-10 | An improved device and method for manufacturing an electro-active spectacle lens involving a mechanically flexible integration insert |
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| CN (1) | CN101395520A (en) |
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