CN107783313A - Variable optical Ophthalmoligic instrument including liquid crystal cell - Google Patents

Variable optical Ophthalmoligic instrument including liquid crystal cell Download PDF

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Publication number
CN107783313A
CN107783313A CN201710770588.2A CN201710770588A CN107783313A CN 107783313 A CN107783313 A CN 107783313A CN 201710770588 A CN201710770588 A CN 201710770588A CN 107783313 A CN107783313 A CN 107783313A
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CN
China
Prior art keywords
liquid crystal
layer
variable optical
insert
material layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710770588.2A
Other languages
Chinese (zh)
Inventor
S.R.比顿
L.德斯奥
F.A.弗里特施
P.潘多吉劳
R.B.普格
J.D.里亚尔
S.塞拉克
N.V.塔比里安
A.托纳
O.尤斯科瓦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson and Johnson Vision Care Inc
Original Assignee
Johnson and Johnson Vision Care Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US15/245,532 external-priority patent/US10386653B2/en
Application filed by Johnson and Johnson Vision Care Inc filed Critical Johnson and Johnson Vision Care Inc
Publication of CN107783313A publication Critical patent/CN107783313A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/08—Auxiliary lenses; Arrangements for varying focal length
    • G02C7/081—Ophthalmic lenses with variable focal length
    • G02C7/083—Electrooptic lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/101—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having an electro-optical light valve
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes

Abstract

Entitled " the variable optical Ophthalmoligic instrument for including liquid crystal cell " of the invention.The invention discloses be used to providing variable optical insert into the method and apparatus in ophthalmic lens as previously described.Energy source can be the variable optical insert power supply being included in ophthalmic lens.In some embodiments, ophthalmic lens are formed by silicone hydrogels casting molding.Various ophthalmic lens entities may include electroactive liquid-crystal layer so as to electric control refracting characteristic.

Description

Variable optical Ophthalmoligic instrument including liquid crystal cell
The cross reference of related application
The power for the U.S. Provisional Patent Application Serial No. 61/878,723 that patent application claims September in 2013 is submitted on the 17th Benefit.
Background technology
1. technical field
The present invention describes the ophthalmic lens device with variable optical ability, and more specifically, in some embodiment party In case, ophthalmic lens of the manufacture with the variable optical insert using liquid crystal cell are described.
2. the discussion of association area
Traditionally, the ophthalmic lens of such as haptic lens or intraocular lens provide predetermined optical quality.For example, connect Tactile eyeglass can provide one or more of following functions：Vision correction feature, beauty humidification and therapeutic effect；But It is that one group of vision correction function is only provided.Every kind of function is provided by the physical characteristic of eyeglass.Substantially, refractive properties are combined Design into eyeglass provides vision correction function.The pigment being attached in eyeglass can provide beauty humidification.It is attached to mirror Activating agent in piece can provide treatment function.
So far, the optical characteristics of ophthalmic lens is designed in the physical characteristic of eyeglass.In general, optical design has been It is determined, and then in the manufacture of eyeglass, for example, being imparted to by casting molding or lathe process in eyeglass.Once Eyeglass is formed, and the optical characteristics of eyeglass keeps constant.However, wearer may be it is sometimes found that be available for them to make with more than one Focal power is favourable to provide visual accommodation.Eyeglass wearer can change optical correction by changing glasses, with Unlike eyeglass wearer, haptic lens wearer or intraocular lens wearer need to pay and largely make great efforts that it could be changed The optical characteristics of vision correction.
The content of the invention
Therefore, the present invention includes being related to the innovation of the variable optical insert with liquid crystal cell, and the variable optical is inserted Entering thing can be powered and be attached in Ophthalmoligic instrument, and it can change the optical quality of eyeglass.The example of such Ophthalmoligic instrument can wrap Include haptic lens or intraocular lens.Further it is proposed that for forming the eye with the variable optical insert for including liquid crystal cell The method and apparatus of section's eyeglass.Some embodiments can also be included with rigidity or the energization insert that can be formed (its other bag Include variable optical part) casting molding silicone hydrogels haptic lens, wherein the insert is in a manner of biocompatibility It is included in ophthalmic lens.
Therefore, the present invention includes the ophthalmic lens with variable optical insert, inserted for being formed with variable optical The equipment of the ophthalmic lens of thing and its disclosure of manufacture method.Energy source can be deposited on variable optical insert, and And the insert can be positioned to close to one or both of the first mold component and the second mold component.By reactive monomer Mixture is placed between the first mold component and the second mold component.First mold component is positioned adjacent to the second mold Part, so as to form lens cavities, wherein energization dielectric insert and at least some reactive monomer mixtures is placed in lens cavities；Institute Reactive monomer mixture is stated exposed to actinic radiation to form ophthalmic lens.By controlling reactive monomer mixture to be exposed In actinic radiation form eyeglass.In some embodiments, ophthalmic lens shirt rim or insert encapsulated layer can include standard Hydrogel ophthalmology lens formulation.With can be qualified matching the exemplary materials of the characteristic of a variety of insert materials may include for example Na Lafeikang races (including Na Lafeikang A and Na Lafeikang B), etafilcon race (including etafilcon A), Calais phenanthrene health A and match Nuo Feikang A.
It is various embodiments to form the method for variable optical insert with liquid crystal cell and the insert of gained Importance.In some embodiments, liquid crystal can be located between two aligned layers, and the aligned layer can set the tranquillization of liquid crystal Orientation.The two aligned layers and energy source electricity can be made logical by the electrode being deposited on the basalis containing variable optical part Letter.Can be by being connected to the intermediate interconnection part of energy source or directly electrode being powered by the part in embedded insert.
The energization of aligned layer can cause liquid crystal to be orientated from tranquillization orientation transition to be powered.Horizontal with two kinds of energizations of on-off In the embodiment of operation, liquid crystal can only have a kind of be powered to be orientated.In other alternative embodiments, according to energy water In the case that flat scale is powered, liquid crystal can have a variety of be powered to be orientated.
The molecular alignments and orientation of gained can influence the light through liquid crystal layer, so as to cause the change of variable optical insert Change.For example, refracting characteristic can be acted on incident light by alignment and orientation.In addition, the effect may include the change of the polarization of light.One A little embodiments may include variable optical insert, wherein the focus characteristics for the change eyeglass that is powered.
In some embodiments, dielectric substance can be deposited between aligned layer and electrode.Such embodiment can Including the dielectric substance with three-dimensional character such as preforming shape.Other embodiments may include the second dielectric material The bed of material, wherein region in across the optics area of the thickness of the first dielectric material layer and change, so as to cause across liquid crystal material layer Electric field changes.In alternative embodiment, ophthalmic lens device may include the first dielectric material layer, its can be with Similar optical characteristics and the compound of two kinds of materials of different low frequency dielectric characteristic.
Brief description of the drawings
The more specific detail of the preferred embodiment of the invention according to following Figure, the present invention are above-mentioned and other Feature and advantage will be evident.
Fig. 1 shows the exemplary mold component devices part available for some embodiments for implementing the present invention.
Fig. 2A and Fig. 2 B show the exemplary energized ophthalmic lens with variable optical insert embodiment.
Fig. 3 shows the front curve part and rear curved surface of the sectional view of variable optical insert, wherein variable optical insert Part can have different curvature, and wherein variable optical part can include liquid crystal.
Fig. 4 shows the sectional view of the ophthalmic lens device embodiment with variable optical insert, wherein can darkening The department of the Chinese Academy of Sciences point can include liquid crystal.
Fig. 5 shows the exemplary of variable optical insert, and wherein variable optical part can include liquid crystal.
Fig. 6 shows the alternative exemplary of variable optical insert, and wherein variable optical part can include Liquid crystal.
Fig. 7 shows the method and step for forming the ophthalmic lens with the variable optical insert that can include liquid crystal.
Fig. 8 shows the equipment for being placed on the variable optical insert comprising liquid crystal in ophthalmic lens mold part The example of part.
Fig. 9 shows the processor available for some embodiments for implementing the present invention.
Figure 10 shows the alternative exemplary of variable optical insert, and wherein variable optical part can include Liquid crystal.
Figure 11 shows the alternative exemplary of variable optical insert, and wherein variable optical part can include Liquid crystal.
Figure 12 A-B show the alternative exemplary of variable optical insert, and wherein variable optical part can Include liquid crystal.
Figure 13 A-C show the alternative exemplary of variable optical insert, and wherein variable optical part can Include liquid crystal.
Figure 14 A-B show the alternative exemplary of variable optical insert, and wherein variable optical part can Include liquid crystal.
Figure 15 shows the alternative exemplary of variable optical insert, and wherein variable optical part can include Liquid crystal.
Figure 16 A-B show the alternative exemplary of variable optical insert, and wherein variable optical part can Include liquid crystal.
Figure 17 A-B show the alternative exemplary of variable optical insert, and wherein variable optical part can Include liquid crystal.
Figure 17 C, D, E show the alternative example of the aligned layer of the exemplary for variable optical insert Property embodiment, wherein variable optical part can include liquid crystal.Figure 17 F show the alternative exemplary of variable optical insert Embodiment, wherein variable optical part can include liquid crystal, and formula the advantages of show this type of implementation.
Figure 18 and 18A shows liquid crystal patterned exemplary and shown from the device of the type Example property optical results.
Figure 19 A and 19B show will can be coupled to it is liquid crystal patterned alternative exemplary in variable optical insert Embodiment.
Figure 20 shows the closely figure of the embodiment of type shown in Figure 19.
Figure 21,21A, 21B and 21C show the alternative exemplary of variable optical insert, wherein variable Opticator can include liquid crystal.
Figure 22,22A, 22B and 22C show the alternative exemplary of variable optical insert, wherein variable Opticator can include liquid crystal.
Figure 23 shows the alternative exemplary of variable optical insert, and wherein variable optical part can include Liquid crystal, and show that polarized light component can affected mode when through this embodiment.
Embodiment
The present invention includes being used for the method and apparatus for manufacturing the ophthalmic lens with variable optical insert, wherein can darkening Department of the Chinese Academy of Sciences's subpackage contains liquid crystal.In addition, the present invention includes the ophthalmic lens with variable optical insert, the variable optical insert bag Containing the liquid crystal being attached in ophthalmic lens.
According to the present invention, ophthalmic lens are formed by embedded insert and energy source, and the energy source such as stores up as energy The electrochemical cell or battery of cryopreservation device.In some example embodiments, can be by the material package comprising energy source simultaneously With placing being environmentally isolated for ophthalmic lens.
The adjusting apparatus that wearer controls can be used to change opticator.The adjusting apparatus may include for example for increasing Or reduce the electronic installation or passive device of voltage output.Some exemplaries may also include automatic regulating apparatus with root Variable optical part is changed by automatic equipment according to the parameter of measurement or wearer's input.Wearer input may include for example by The switch of wireless device controls.It is wireless to may include such as radio frequency control, magnetic force switching and inductance switching.In other examples In property embodiment, it may be in response to biological function or line activating entered in the measurement in response to the sensing element in ophthalmic lens.As Non-limiting example, the activation that other exemplaries are available from the change in by ambient lighting conditions and triggered.
In some example embodiments, insert also includes the variable optical part comprising liquid crystal layer.When electrode leads to The electric field that is formed of electricity cause to realign in liquid crystal layer so that molecule from tranquillization orientation transition for be powered orientation when, focal power It can change.In other alternative exemplaries, it is powered using by electrode caused by change liquid crystal layer Different effect, such as the rotation of the angle of polarization.
In with some of liquid crystal layer exemplaries, may be present in the non-optical zones part of ophthalmic lens can The element being powered, and other exemplaries need not can be powered.In the embodiment without energization, liquid crystal Certain external factor (such as environment temperature or ambient light) can be based on and passively changed.
Liquid crystal lens can provide the refractive index of electrically variable to the polarised light incided in its main body.Wherein polarization axle is Lens element is allowed to change environment non-polarized light relative to the combination of two kinds of eyeglasses of the first eyeglass rotation in two eyeglasses Refractive index.
Electric field can be applied and controlled physics by spaning electrode by by electroactive liquid-crystal layer and electrode combination, can obtain Entity.If dielectric layer be present on liquid crystal layer periphery, then be combined into across the field of dielectric layer and across the field of liquid crystal layer The field of spaning electrode.In 3D shape, it can be estimated based on electrodynamic principle and the geometry of dielectric layer and liquid crystal layer Across the property of the combination of the field of each layer.If the dielectric layer of effective electric thickness is made in a non-uniform manner, then spaning electrode The effect of field can produce the variations in refractive index of dimension shape according to dielectric valid shape " shaping " and in liquid crystal layer.One In a little exemplaries, such shaping can produce the eyeglass that can use variable focus characteristic.
When the physical optic element comprising liquid crystal layer makes its own be configured to have different focus characteristics, can obtain another The exemplary of choosing.Then, the electric power of liquid crystal layer can be utilized based on the electric field applied by using electrode across liquid crystal layer Variable refractive index introduces the change of the focus characteristics of eyeglass.The shape and rear receiving that preceding receiving surface is formed with liquid crystal layer The shape that surface is formed with liquid crystal layer can determine that the one-level focus characteristics of system.
In with lower part, the detailed description of the exemplary of the present invention will be provided.The preferred reality of described in the text Apply scheme and alternative embodiment is merely illustrative embodiment, and it is to be understood that the modification shape of these embodiments Formula, modification and change can be obvious for those skilled in the art.It is it will thus be appreciated that of the invention Exemplary is without limitation on scope of the invention below.
Nomenclature
In the described and claimed for the present invention, used each term is defined as follows：
Aligned layer：As used herein, the influence adjacent with liquid crystal layer and the orientation of the molecule to align in liquid crystal layer are referred to Layer.The molecular alignments and orientation of gained can influence the light through liquid crystal layer.For example, alignment and orientation can act on refracting characteristic Incident light.In addition, the effect may include the change of the polarization of light.
Telecommunication：As used herein, refer to be influenceed by electric field.For conductive material, the influence can be drawn by electric current flowing Rise, or electric current flowing can be caused.In other materials, the influence can be the electric potential field having an impact, and such as permanent molecules are even The extremely trend of son and sensing molecular dipole along such as field line orientation.
It is powered：As used herein, it is to refer to provide electric current or the state of electric energy is stored in it.
Be powered orientation：As used herein, refer to that liquid crystal divides when the effect by the potential field powered by energy source is when influenceing The orientation of son.For example, if energy source is operated with the state that is turned on or off, the device comprising liquid crystal can have a kind of energization to take To.In other embodiments, the orientation that is powered can change along the scale influenceed by the amount of the energy applied.
Energy：As used herein, be instigate physical system do work ability.Many purposes in the present invention can relate to described Ability is able to carry out electro ultrafiltration in acting.
Energy source：As used herein, it is to refer to energize or bio-medical instrument is in the device of "on" position.
Energy collecting device：As used herein, be refer to from environment extract energy and by the energy conversion extracted into The device of electric energy.
Intraocular lens：As used herein, the ophthalmic lens being embedded in eyes are referred to.
Eyeglass forms mixture or reactive mixture or reactive monomer mixture (RMM)：As used herein, referring to can It is cured and is crosslinked or can be crosslinked and form the monomer or prepolymer material of ophthalmic lens.Each embodiment may include have The eyeglass of one or more additives forms mixture, and the additive is included for example：UV blocking agents, colouring agent, light trigger Or catalyst, and people may want other additives for adding in the ophthalmic lens (such as haptic lens or intraocular lens).
Eyeglass forms surface：As used herein, the surface for molding eyeglass is referred to.In some embodiments, it is any Such surface can have optical quality surface finish, and this represents its smooth enough and is formed so that lens surface in optics On be qualified, the lens surface forms the polymerization of mixture to be formed by the eyeglass that is contacted with molded surface.In addition, In some embodiments, eyeglass, which forms surface, can have to be applied to geometric form necessary to the desired optical characteristics of lens surface Shape, including such as spherical shape, aspherical shape and the cylinder number of degrees, wave-front aberration correction and corneal topographic correction.
Liquid crystal：As used herein, refer to that there is the states of matter of the attribute between conventional liquid and solid crystals.Liquid crystal can not be with Solid characterizes, but its molecule displays goes out alignment to a certain degree.As used herein, liquid crystal is not limited to specific phase or structure, but Liquid crystal can have specific tranquillization orientation.The orientation and phase of liquid crystal can be manipulated by external force, such as temperature, magnetic force or electric power, tool Body depends on the classification of liquid crystal.
" lithium ion battery "：As used herein, refer to that wherein lithium ion moves through battery to generate the electrochemistry of electric energy Battery.The electrochemical cell (it is commonly referred to as battery) can be re-energised or recharged with its canonical form.
Dielectric insert or insert：As used herein, it is to refer to support the formable of energy source in ophthalmic lens Or rigid substrate.In some example embodiments, dielectric insert also includes one or more variable optical parts.
Mould：As used herein, refer to can be used for the rigidity or semi-rigid object for forming eyeglass by uncured preparation.Some Preferable mould includes forming front curve mold piece and two mold components of back curve mold part.
Ophthalmic lens：As used herein, refer to reside in any Ophthalmoligic instrument in eyes or on eyes.These devices can To provide optical correction, or it can be beauty.For example, term eyeglass can refer to for correcting or improving eyesight or for strengthening eye Portion's physiology beauty (such as iris color) and the haptic lens without prejudice to eyesight, intraocular lens, covers eyeglass, ophthalmic insert, Optical inserts or other similar devices.In some example embodiments, preferred eyeglass of the invention is by organosilicon bullet Soft contact lenses made of property body or hydrogel, wherein hydrogel include such as water-setting hydrogel and fluorine-containing hydrogel.
Optics area：As used herein, the ophthalmic lens region for referring to ophthalmic lens wearer can pass through and watching.
As used herein, " power " refers to the work(done in the unit interval or the energy of transmission.
Rechargeable can be powered again：As used herein, it is to refer to be restored to the shape being operated with superior performance State.Multiple use in the scope of the invention can relate to the recovery for the ability for making electric current flow a certain reconstruction time section with given pace Ability.
It is powered or recharges again：As used herein, refer to make energy source return to the state with compared with high workload capacity.This Numerous uses in invention can be related to device and recover to make electric current within a certain period reset with the property of a certain speed flowing Energy.
From mould separating：As used herein, refer to that eyeglass is kept completely separate with mould, or be only loosely attached so that make it It can take out or be pushed away with cotton swab by gently rocking.
Tranquillization is orientated：As used herein, refer to the molecule of liquid-crystal apparatus is oriented in its tranquillization, non-power status.
Variable optical：As used herein, refer to change the focal power of optical property such as eyeglass or the ability of the angle of polarization.
Ophthalmic lens
Referring to Fig. 1, the equipment 100 for the Ophthalmoligic instrument to form the insert including being sealed and being encapsulated illustrated therein is.If The standby back curve mold 101 including exemplary front curve mold 102 and matching.The variable optical insert 104 of Ophthalmoligic instrument It can be located at main body 103 inside front curve mold 102 and back curve mold 101.In some example embodiments, hydrogel The material of main body 103 can be hydrogel material, and variable optical insert 104 can be surrounded on all surface by the material.
Variable optical insert 104 may include multiple liquid crystal layers 109 and 110.Other exemplaries may include list Individual liquid crystal layer, some of which will discuss in part below.Equipment 100 can be used for establishing new Ophthalmoligic instrument, the new ophthalmology Device is made up of the combination of the element with multiple sealing areas.
In some example embodiments, the eyeglass with variable optical insert 104 may include the soft skirt of rigid central Side is designed, and preceding surface and rear table are corresponded to air and respectively including the central rigid optical element of liquid crystal layer 109 and 110 Anterior corneal surface on face directly contacts.The soft shirt rim of lens materials (being usually hydrogel material) is attached to rigid optical element Periphery, and energy and function can also be added to the ophthalmic lens of gained by rigid optical element.
Referring to Fig. 2A and Fig. 2 B, the exemplary of variable optical insert is shown at 200 and 250 respectively Figure and sectional view top down.In the drawing, peripheral part 211 of the display of energy source 210 positioned at variable optical insert 200 In.Energy source 210 may include for example rechargeable film lithium ion battery or the battery based on alkaline battery.Energy source 210 Interconnected connectable to interconnection structure 214 with realizing.For example, energy source 210 can be connected to by the additional interconnection part at 225 and 230 Circuit, such as entry 205.In other exemplaries, insert can have the interconnection structure of deposition in its surface.
In some example embodiments, variable optical insert 200 may include flex substrate.The flex substrate can lead to Cross and foregoing similar mode or be formed as the shape for being similar to representative ophthalmic lens form by other means.However, in order to increase Additional pliability, variable optical insert 200 may include additional shape feature, for example, radial slot along its length.It can deposit In multiple electronic units, such as (such as integrated circuit, discreet component, passive component and it also is included in by 205 parts represented Interior such device).
It also show variable optical part 220.Can according to order by be applied across the electric current of variable optical insert come Change variable optical part.In some example embodiments, variable optical part 220 includes being located at two layers of transparent substrates Between liquid crystal thin layer.Many power actives may be present and control the mode of variable optical component, generally pass through electronic circuit 205 Action.Electronic circuit reception signal and can be connected to sensing element in a variety of ways, and the sensing element may be alternatively located at In insert (such as, entry 215).In some embodiments, variable optical insert can be encapsulated into eyeglass shirt rim 255, The shirt rim can be made up of to form ophthalmic lens hydrogel material or other suitable materials.In these exemplaries, Ophthalmic lens may include the ophthalmic lens insert 200 of ophthalmology shirt rim 255 and encapsulation, and the ophthalmic lens insert may include itself Liquid crystal material layer or region or the layer comprising liquid crystal material or region.
Variable optical insert including liquid crystal cell
Referring to Fig. 3, entry 300, the diagram of the eyeglass effect of two eyeglass parts of different shapes can be observed.Such as preceding institute State, can be by the way that electrode and liquid crystal layer system be encapsulated in two eyeglass parts of different shapes to form the variable of field of the present invention Optical inserts.Electrode and liquid crystal layer system can occupy the space between eyeglass part, as shown in 350.It is considerable at 320 Front curve part is observed, and at 310, rear curved surface part can be observed.
In a non-limiting example, front curve part 320 can have the concave surface to be interacted with space 350.At some In embodiment, this shape can be further characterized as with the radius of curvature and focus 335 for being shown as 330.Led in the present invention Other more complicated shapes with different parameters feature can be formed in the range of domain；But in order to illustrate, it can show simple Spherical form.
According to similar and other nonrestrictive mode, rear curved surface part 310 can have what is interacted with space 350 Convex surface.In some embodiments, this shape can be further characterized as with the radius of curvature and focus for being shown as 340 345.Other more complicated shapes with different parameters feature can be formed in the range of field of the present invention；But in order to illustrate It is bright, simple spherical form can be shown.
In order to explain how the eyeglass for the type for being shown as 300 can operate, including the material of entry 310 and 320 can have in advance The first natural refractive index of determination value, in a non-limiting example, liquid crystal layer may be selected in space 350 to match the pre- of refractive index The value first determined.Therefore, when light ray passes through eyeglass part 310 and 320 and space 350, they will not be focused on special with adjustment The mode of property acts on various interfaces.In its function, unshowned optic portion can activate the energization of all parts, thus may be used Cause the liquid crystal layer in space 350 that incident light rays are presented with different refractive indexes.In a non-limiting example, gained can be reduced Refractive index.Now, at each material interface, the path of light can be modeled as focus characteristics based on surface and refractive index Change and change.
This model can be based on Snell's law：sin(θ1)/sin(θ2)=n2/n1.For example, interface can be by part 320 and space 350 form.θ1It can be the angle that incident ray is formed with surface normal in interface.θ2Can be ray when leaving interface and table The modeling angle that face normal is formed.n2Can representation space 350 refractive index, and n1The refractive index of part 320 can be represented.Work as n1No Equal to n2When, then angle, θ1And θ2Also by difference.Therefore, when the liquid crystal layer in space 350 electrically variable refraction index changing When, light ray will also change in the path taken in interface.
Referring to Fig. 4, the ophthalmic lens 400 with embedded variable optical insert 410 are shown.Ophthalmic lens 400 can With preceding curved surface 401 and rear curved surface 402.Insert 410 can have the variable optical part 403 for including liquid crystal layer 404. In some exemplaries, insert 410 can have multiple liquid crystal layers 404 and 405.The part of insert 410 can be with eye The optics area overlapping of section's eyeglass 400.
Referring to Fig. 5, the variable optical part 500 with liquid crystal layer 530 in pluggable ophthalmic lens is shown.Can darkening The department of the Chinese Academy of Sciences points 500 can have such as the similar material diversity and structure connection discussed in the other parts of this specification Property.In some example embodiments, transparency electrode 545 can be placed in the first transparent substrates 550.First lens surface 540 may include dielectric film, and in some example embodiments, it may include it can be placed in first transparency electrode 545 Aligned layer.In such exemplary, the shape of the dielectric layer of the first lens surface 540 can be situated between in shown electricity The shape that forming region changes in matter thickness.The shape of such regional change can be that lens element is introduced more than described in reference picture 3 Geometric effect additional focusing ability.In some embodiments, for example, shaping layer can be by first transparency electrode 545 Substrate 550 combines upper injection molding and formed.
In some example embodiments, first transparency electrode 545 and second transparency electrode 520 can in a variety of ways into Shape.In some instances, shaping can result in individually different regions, and the region has the energization individually applied.At other In example, electrode can be shaped as pattern, for example, the spiral shape from center of lens to periphery, the pattern can be applied across liquid crystal layer 530 Add variable electric field.In either case, in addition to the shaping of the dielectric layer on electrode or such shaping can be replaced and held The such electrode forming of row.The electrode forming of these modes can also introduce the additional focusing ability of lens element under operation.
Liquid crystal layer 530 can be between first transparency electrode 545 and second transparency electrode 525.Second transparency electrode 525 can Top substrate layer 510 is attached to, wherein may include ophthalmology from the device that top substrate layer 510 is formed to bottom substrate 550 The variable optical part 500 of eyeglass.Two aligned layers may be alternatively located at 540 on dielectric layer and 525 and can surround liquid crystal Layer 525.Aligned layer at 540 and 525 can play a part of limiting the tranquillization orientation of ophthalmic lens.In some exemplary embodiment party In case, electrode layer 525 and 545 can with the telecommunication of liquid crystal layer 530 and can produce from tranquillization orientation at least one be powered be orientated Orientation change.
Referring to Fig. 6, the variable optical insertion with two liquid crystal layers 620 and 640 in pluggable ophthalmic lens is shown The alternative form of thing 600.Each layer of each aspect around liquid crystal region can have similar diversity, such as relative to Fig. 5 In variable optical insert 500 described in.In some example embodiments, aligned layer can introduce polarization sensitivity single In the function of liquid crystal cell.By the element based on the first liquid crystal that will be formed by the first substrate 610, (it is surrounded in space 620 and second the interlayer of substrate 630 can have the first polarization to select) with being formed by the second surface in the second substrate 630 Based on the second liquid crystal element (in space around 640 and the 3rd substrate 650 interlayer have second polarization select) combine, Combination can be formed, the combination can allow the focus characteristics of the electrically variable of eyeglass, and the eyeglass is for light incident thereon It is insensitive in terms of polarization.
At exemplary elements 600, can using three basalises come formed have it is related to the example at 500 various types of The combination of type and multifarious two electroactive liquid-crystal layers.In other examples, device can pass through the combination of four different bases Formed.In such example, intermediate base bottom 630 is divided into two layers.If substrate is combined in the time later, work(can be obtained The device of entry 600 can be similar to.The combination of four layers can provide convenient example for the manufacture of element, wherein 620 can be surrounded The device similar with 640 liquid crystal layers construction, wherein processing difference can be with step of the restriction for the alignment feature structure of liquid crystal cell Rapid part is relevant.In other embodiments, if the lens element around single liquid crystal layer being shown at 500 is in rotation 90 To be spherically symmetric or symmetrical when spending, then can by by two parts before assembly relative to each other rotated ninety degrees by this two Individual part is assembled into the structure with type shown in 600.
Material
Microinjection molding embodiment may include, for example, poly- (the amyl- 1- alkene of 4- methyl) copolymer resin is used to be formed directly Footpath about 6mm between 10mm and front surface radius in about 6mm between 10mm, and rear surface radius is in about 6mm and 10mm Between, and eyeglass of the center thickness between about 0.050mm and 1.0mm.Some exemplaries include diameter about 8.9mm, front surface radius about 7.9mm, rear surface radius about 7.8mm, center thickness about 0.200mm and edge thickness are about 0.050mm insert.
Variable optical insert 104 can be placed in for being formed in the mold component 101 and 102 of ophthalmic lens.Mold Part 101 and the material of mold component 102 may include the polyolefin of such as one or more of：Polypropylene, polystyrene, poly- second Alkene, polymethyl methacrylate and improved polyalkene.Other moulds may include ceramics or metal material.
Preferable alicyclic co-polymer includes two kinds of different Examples of alicyclic polymers.The various grades of alicyclic co-polymer can With the glass transition temperature in the range of 105 DEG C to 160 DEG C.
In some example embodiments, mould of the invention can include such as polypropylene, polyethylene, polystyrene, The polymer of improved polyalkene and cyclic polyolefin in polymethyl methacrylate, main chain containing alicyclic moiety.This blending Thing can be used on any half or two halves mould, wherein it is preferred that this blend is used for rear curved surface, and front curve includes Alicyclic co-polymer.
Some method for optimizing of mould 100 are being prepared according to the present invention, injection molding is carried out according to known technology； However, exemplary can also include the mould shaped with other technologies, the other technologies are included for example：Lathe adds Work, diamond turning or laser cutting.
Generally, eyeglass is formed at least one surface of two mold components 101 and 102.It is however, exemplary at some In embodiment, a surface of eyeglass can be formed by mold component 101 or 102, and another surface of eyeglass can use car Bed processing method or other method are formed.
In some example embodiments, preferable lens materials include the component containing organosilicon." the group containing organosilicon Point " it is the component that at least one [- Si-O-] unit is included in monomer, macromonomer or prepolymer.Preferably, by containing The total molecular weight meter of the component of machine silicon, all silicon and the oxygen that is connected are and more preferably big to be greater than about 20 percentage by weights It is present in the amount of 30 percentage by weights in the component containing organosilicon.The available component containing organosilicon preferably includes polymerizable Functional group, such as acrylate, methacrylate, acrylamide, Methacrylamide, vinyl, N- vinyl lactams, N- vinylamides and styryl functional groups.
In some example embodiments, around insert ophthalmic lens shirt rim (also referred to as insert encapsulated layer) It can be made up of standard hydrogel ophthalmic lens preparation.With the exemplary of qualified matching properties can be formed with a variety of insert materials Material may include but be not limited to Narafilcon races (including Narafilcon A and Narafilcon B) and etafilcon race (bag Include etafilcon A).Pair material character consistent with this area is hereafter subjected to more fully technical discussion.Skill in this area Art personnel can be appreciated that the other materials in addition to those materials discussed can also form sealing and encapsulation insert Qualified packaging part or partial encapsulation part, and should be regarded as meeting and being included within the scope of the claims.
Suitably the component containing organosilicon includes the compound of Formulas I
Wherein
R1Independently selected from monovalence reactive group, univalent alkyl or monovalence aryl, any foregoing group can also include choosing From following functional group：Hydroxyl, amino, oxa-, carboxyl, alkyl carboxyl, alkoxy, amide groups, carbamic acid root, carbonate, The combination of halogen or these groups；And the monovalence siloxane chain of 1 to 100 Si-O repeat unit is included, the monovalence silica Alkane chain can also include and be selected from following functional group：Alkyl, hydroxyl, amino, oxa-, carboxyl, alkyl carboxyl, alkoxy, amide groups, The combination of carbamic acid root, halogen or these groups；
Wherein b=0 to 500, when b is not 0, it should be understood that b is the distribution that mode is equal to setting value；
Wherein at least one R1For monovalence reactive group, and in some embodiments, the R between one and three1 Including monovalence reactive group.
As used herein, " monovalence reactive group " is that can undergo Raolical polymerizable and/or cationic polymerization Group.The non-limiting example of free-radical reactive group includes (methyl) acrylate, styryl, vinyl, ethene Base ether, (methyl) acrylic acid C1-6Arrcostab, (methyl) acrylamide, C1-6Acyl in alkyl (methyl) acrylamide, N- vinyl Amine, N- vinylamides, C2-12Alkenyl, C2-12Alkenyl phenyl, C2-12Alkenyl naphthyl, C2-6Alkenyl phenyl, C1-6Alkyl, O- ethene Aminocarbamic acid ester and O- vinylcarbonates.The non-limiting example of cationoid reaction group includes vinyl ethers or epoxy Group and their mixture.In one embodiment, radical reaction group includes (methyl) acrylate, propylene Acyloxy, (methyl) acrylamide and their mixture.
Suitable univalent alkyl and aromatic yl group include unsubstituted monovalence C1-C16Alkyl, C6-C14Aryl, such as substitute And unsubstituted methyl, ethyl, propyl group, butyl, 2- hydroxypropyls, propoxypropyl, polyethylene oxygen propyl group, combinations thereof Deng.
In one embodiment, b zero, a R1For monovalence reactive group, and at least three R1Selected from 1 to The univalent alkyl of 16 carbon atoms, and in another embodiment, selected from the univalent alkyl with 1 to 6 carbon atom.The reality Apply the organosilicon composition of scheme non-limiting example include 2- methyl -, 2- hydroxyls -3- [3- [1,3,3,3- tetramethyl -1- [(trimethyl silyl) epoxide] disiloxane base] propoxyl group] propyl diester (" SiGMA "),
(trimethylsiloxy) silane of 2- hydroxy-3-methyl acryloxies propoxypropyl-three,
3- methacryloxypropyls three (trimethylsiloxy) silane (" TRIS "),
Double (trimethylsiloxy) methyl-monosilanes of 3- methacryloxypropyls and
3- methacryloxypropyl pentamethyl disiloxanes.
In another embodiment, b is 2 to 20,3 to 15, or is 3 to 10 in some embodiments；It is at least one End R1Including monovalence reactive group, and remaining R1Selected from the univalent alkyl with 1 to 16 carbon atom, and another The univalent alkyl with 1 to 6 carbon atom is selected from one embodiment.In still another embodiment, b be 3 to 15, one End R1Including monovalence reactive group, another end R1Including the univalent alkyl with 1 to 6 carbon atom, and it is remaining R1Including the univalent alkyl with 1 to 3 carbon atom.The non-limiting example of the silicone resin component of the present embodiment include (one- (2- hydroxy-3-methyls acryloxypropyl) ether capped dimethyl silicone polymer of-propyl group (400-1000MW)) (" OH- MPDMS "), monomethyl acryloxypropyl end-blocking-n- a butyl end-cappings dimethyl silicone polymer (800-1000MW), (“mPDMS”)。
In another embodiment, b is 5 to 400 or 10 to 300, two end R1Include monovalence reactivity base Group, and remaining R1Independently selected from the univalent alkyl with 1 to 18 carbon atom, this univalent alkyl is between carbon atom There may be ehter bond, and halogen can also be included.
In the embodiment that one needs organic silicone hydrogel lenses, eyeglass of the invention will be by reactive mixture system Into wherein by the gross weight meter for the activated monomer component for preparing polymer according to this, reactive mixture includes at least about 20 weights The % component containing organosilicon is measured, preferably in about 20 weight % between 70 weight %.
In another embodiment, one to four R1Vinylcarbonates or carbamate including following formula：
Formula II
Wherein：Y represents O-, S- or NH-；
R represents hydrogen or methyl；D is 1,2,3 or 4；And q is 0 or 1.
Vinylcarbonates or vinyl carbamate monomer containing organosilicon specifically include：1,3- double [4- (ethylene oxies Base carbonyl epoxide) butyl- 1- yls] tetramethyl-disiloxane, 3- (ethylene oxy carbonyl sulfenyl) propyl group-[three (trimethyl silyls Epoxide) silane], 3- [three (trimethylsiloxy) silicyls] allyl carbamate, 3- [three (trimethyls Siloxy) silicyl] propyl vinyl carbamate, carbonic acid trimethylsilylethyl vinyl ester, carbonic acid three Methyl silicane ylmethyl vinyl acetate, and
In the case where it is expected biologic medical equipment with about less than 200 modulus, only one R1A covalent reaction will be included Property group, and remaining R1Monovalent siloxane group group will be included by being no more than two in group.
The another kind of component containing organosilicon is included with the polyurethane macromers of following formula：
Formula IV-VI
(*D*A*D*G)a*D*D*E1；
E(*D*G*D*A)a*D*G*D*E1Or
E(*D*A*D*G)a*D*A*D*E1
Wherein：
D represents alkane diyl, alkyl-cycloalk diyl, cycloalkanes diyl, fragrant diyl or alkyl virtue two with 6 to 30 carbon atoms Base；
G represent with 1 to 40 carbon atom and can in main chain the alkane diyl containing ehter bond, thio key or amine key, ring Alkane diyl, alkyl-cycloalk diyl, fragrant diyl or alkyl virtue diyl；
* carbamate or urea groups key are represented；
A is at least 1；
A represents the divalence polymerization base being expressed from the next：
Formula VII
R11Alkyl or fluoroalkyl group with 1 to 10 carbon atom are independently represented, it can contain between carbon atom There is ehter bond；Y is at least 1；And p provides 400 to 10,000 fractional weight；E and E1Each of independently represent under The polymerizable unsaturated organic group that formula represents：
Formula VIII
Wherein：R12For hydrogen or methyl；R13Alkyl or-CO-Y-R for hydrogen, with 1 to 6 carbon atom15Base, wherein Y for- O-, Y-S- or-NH-；R14For the divalent group with 1 to 12 carbon atom；X representative-CO- or-OCO-；Z representative-O- or- NH-；Ar represents the aromatic group with 6 to 30 carbon atoms；W is 0 to 6；X is 0 or 1；Y is 0 or 1；And z is 0 or 1.
It is preferably polyurethane macromers containing organosilicon composition, it is expressed from the next：
Formula IX
Wherein R16It is that diisocyanate is biradical after isocyanate groups are removed, such as isophorone diisocyanate It is biradical.Suitably macromonomer containing organosilicon is by fluorine ether, hydroxy-end capped dimethyl silicone polymer, isophorone two for other Isocyanates and isocyanatoethyl react the Formula X compound to be formed, and (wherein x+y is the number in the range of 10 to 30 Value).
Formula X
Include suitable for other components comprising organosilicon of the present invention：Include polysiloxanes, polyalkylene ether, two isocyanides Acid esters, poly- fluorohydrocarbon, the macromonomer of Polyfluoroether and polysaccharide group；With polar fluorinated graft or pendant groups (in end two Hydrogen atom is attached with fluorinated carbon atoms) polysiloxanes；Hydrophilic siloxanyl methyl-prop comprising ehter bond and siloxanes key Olefin(e) acid ester and the crosslinkable monomers comprising polyethers and polysiloxane group.Foregoing any polysiloxanes also is used as the present invention In contain organosilicon composition.
Liquid crystal material
Many materials can with the characteristic for meeting liquid crystal channel type as described herein may be present.It is contemplated that have The liquid crystal material of sharp toxicity can be preferable, and the cholesteryl liquid crystal material of natural source can be available.In other examples In, the material of encapsulation technology and ophthalmology insert can allow wide in range selection material, and the material may include LCD display correlation material Material, the LCD display associated materials generally can be and nematic or cholesteric N* or smectic type C* liquid crystal or liquid crystal compound phase The broad categories of pass.Commercially available mixture (the Merck such as TN, VA, PSVA, IPS and FFS application Specialty chemicals Licristal mixtures) and other commercially available mixtures can be formed material selection To form liquid crystal layer.
In non-limiting sense, mixture or preparation can include following liquid crystal material：1- (trans -4- ethyls ring second Base) -4- isothiocyanic acid benzene liquid crystal including (4- octyl benzoic acids and 4- ethyl benzoates) benzoic acid compounds including (4 ' - Amyl group -4- biphenyl nitrile, 4 '-octyl group -4- biphenyl nitrile, 4 '-(octyloxy) -4- biphenyl nitriles, 4 '-(hexyloxy) -4- biphenyl nitriles, 4- (trans -4- pentylcyclohexyls) benzonitrile, 4 '-(amoxy) -4- biphenyl nitriles, 4 '-hexyl -4- biphenyl nitrile) nitrile compound with And 4,4 '-azoxy methyl phenyl ethers anisole.
In non-limiting sense, the preparation that can be described as W1825 can be used as liquid crystal layer formation material.W1825 is available from BEAM Engineering for Advanced Measurements Co.(BEAMCO)。
The liquid crystal material of other classifications available for this paper inventive concepts may be present.For example, ferroelectric liquid crystals can provide for The function of electric field orientation liquid crystal embodiment, but can also introduce other effects, such as magnetic field interaction.Electromagnetic radiation and material Interaction also can be different.
Align layer material
In the multiple exemplaries described, the liquid crystal layer in ophthalmic lens can be needed in insert boundary Alignd in a variety of ways.Alignment for example can be parallel or perpendicular to insert border, and can pass through the suitable of each surface This alignment is obtained when processing.Processing can relate to by the substrate of insert of the aligned layer coating comprising liquid crystal (LC).Those are right Neat layer is described herein.
The technology generally implemented in various types of devices based on liquid crystal can be friction techniques.These technologies may be adapted to Illustrate curved surface, such as the curved surface for the insert for closing liquid crystal.In one example, polyvinyl alcohol can be passed through (PVA) layer carrys out coating surface.For example, PVA layers can carry out spin coating using 1 weight % aqueous solutions.Can be by 1000rpm backspins The time of painting such as about 60 seconds applies solution, is then dried.Then, drying layer then can be wiped with soft cloth.Non- In limitative examples, soft cloth can be velvet.
Light alignment can be another technology for preparing aligned layer on liquid crystal packaging part.In some exemplary embodiment party In case, light alignment can be desirable due to its non-contact property and the ability manufactured on a large scale.In a non-limiting example, liquid The light aligned layer used in brilliant variable optical part can be made up of dichroic azobenzene dye (azo dyes), and the dyestuff can be led To be alignd on the direction of the polarization of the linearly polarized photon perpendicular to usual UV wavelength.Such alignment can be the trans-suitable of repetition The result of formula-trans photoisomerization process.
As an example, PAAD series azobenzene dye can be from the solution of 1 weight % in DMF spin coating 30 at 3,000 rpm Second.Then, the layer of acquisition can be exposed to UV wavelength (such as 325nm, 351nm, 365nm) or even visible wavelength (400- Linear polarized beam 500nm).Light source can use various forms.In some example embodiments, light may originate from for example swashing Light source.Other light sources (such as LED, halogen and incandescent source) can be other non-limiting examples.Being regarded in various forms of light needs Before or after being polarized in various patterns, it can collimate light in various manners, such as by using optical lens device.Example Such as, collimation can be inherently associated with by carrying out the light of self-excitation light source.
A variety of Photoinduced Optical Anisotropy materials are currently known, the Photoinduced Optical Anisotropy material azo-based benzene polymerization Thing, polyester, the photic crosslinkable polymer liquid crystal etc. with mesomorphic 4- (4- methoxycinnamates acyloxy) Biphenyl Group.It is such The example of material includes sulfo group bisazo dye SD1 and other azobenzene dyes (specifically, derived from BEAM Engineering For Advanced Measurements Co. (BEAMCO) PAAD series materials), poly- (vinyl cinnamate) and Other materials.
In some example embodiments, it may be desirable to molten using the aqueous solution or alcohol of PAAD series azo dyes Liquid.Some azobenzene dyes (such as methyl red) can be used for carrying out light alignment by direct doped liquid crystal layer.By azobenzene dye Azo dyes diffusion is may be such that exposed to polarised light and is attached in the most of liquid crystal material layer and liquid crystal material layer in boundary layer, So as to form required aligned condition.
Azobenzene dye (such as methyl red) can be also used in combination with polymer (such as PVA).Can be it is qualified can It is currently known to strengthen other Photoinduced Optical Anisotropy materials of adjacent liquid crystal layer alignment.These examples may include to be based on cumarin Material, polyester, have mesomorphic 4- (4- methoxycinnamates acyloxy)-Biphenyl Group photic crosslinkable polymer liquid crystal, Poly- (vinyl cinnamate) and other materials.Embodiment of the light alignment techniques for the patterned orientation including liquid crystal For can be favourable.
In another exemplary of aligned layer is prepared, by by silica vacuum moulding machine in insert substrate On obtain aligned layer.For example, SiO2Can be in low pressure (such as~10-6Mbar deposited under).It can be provided pair with nano-grade size Neat feature structure, the alignment feature structure are injected and are molded onto wherein with the formation of preceding insert and rear insert.These Molded structure can variously be coated with the material or other materials mentioned, the material can directly with physical alignment feature Structural interaction and alignment pattern is transferred in the alignment orientation of liquid crystal molecule.
Other exemplary can relate to be formed the physical alignment feature knot of insert after insert is formed Structure.It can be performed on molded surface and be common in the friction techniques in other liquid crystal type fields to produce physics groove.These surfaces Also the processing of post moulding impressing can be subjected to, to produce little groove shape feature thereon.Other exemplaries may originate from etching The use of technology, the etching technique can relate to various types of optical patterning techniques.
Dielectric substance
Dielectric film and dielectric are described herein.In a manner of non-limiting example, for LC variable optics Dielectric film or dielectric in part have the characteristic for being suitable for invention described herein.Dielectric may include to use individually or together Make dielectric one or more material layers.Multiple layers can be used to realize better than single dielectric dielectric properties.
Dielectric can allow the zero defect under the thickness (such as between 1 and 10 μm between) needed for discrete variable opticator Insulating barrier.Defect can be referred to as pin hole, as known in the art as the hole in dielectric, so as to allow to be situated between by electricity The electricity and/or chemical contact of matter.Dielectric under given thickness can meet the needs of for breakdown voltage, such as dielectric should It is subjected to 100 volts or higher.
Dielectric can allow to be fabricated onto bending, taper, spherical and composite three-dimensional surface (for example, curved surface or non-flat Face surface) on.The typical method of dip-coating or spin coating can be used, or other method can be used.
Dielectric can resist in variable optical part chemicals (for example, liquid crystal or liquid crystal compound, solvent, acid and Alkali or the other materials that may be present in the formation of liquid crystal region) infringement.Dielectric can be resisted from infrared ray, purple Outside line and the damage of visible ray.Undesirable damage may include degraded to parameters, for example, breakdown voltage and optics Transmission.Dielectric can resist the infiltration of ion.Dielectric can for example be attached to bottom electrode and/or base using adhesion-promoting layer Bottom.The technique for allowing low stain, low surface defect, conformal coating and low surface roughness can be used to be made for dielectric.
Dielectric can have relative permitivity or the electrically operated compatible dielectric constant with system, for example, relatively low is relative Capacitivity, to reduce the electric capacity of given electrode zone.Dielectric can have high resistivity, so as to even apply electricity using higher Allow very small electric current flowing in the case of pressure.Dielectric can have the property needed for Optical devices, for example, high-transmission, low Refractive index in scattered and particular range.
Exemplary, non-limiting, dielectric substance includes Parylene-C, Parylene-HT, silica, nitrogen One or more of SiClx and Teflon AF.
Electrode material
Electrode is described herein, and it is used to apply the potential for realizing electric field across liquid crystal region.Electrode generally wraps Include the one or more material layers for being used as electrode individually or together.
Electrode perhaps adhesion promoter (for example, methacryloxypropyl trimethoxy silane) can be used to be attached to bottom Other objects in layer substrate, dielectric coating or system.Electrode can form beneficial native oxide or can be through handling with shape Into beneficial oxide skin(coating).Electrode can be transparent, substantial transparent or opaque, so as to high light transmittance and low anti- Penetrating property.Known processing method can be used by electrode patterning or etching.For example, lithographic patterning and/or stripping can be used in electrode Technique is evaporated, sputter or plating.
Electrode is designed to the suitable resistivity being used in electrical system described herein, for example, meeting given several The demand of resistance in what shape construction.
Electrode can be made up of any suitable material, the material include indium tin oxide (ITO), gold, stainless steel, chromium, One or more of graphene, the layer of graphene doping and aluminium come.It should be appreciated that this is not full list.
Process
The example of technique of the following method and step as that can implement according to certain aspects of the invention is provided.It should manage Solution, the order of the method and step presented is not restricted, and other order can also be used for implementing the present invention.In addition, not institute It is all that implementation is essential to the invention to have step, may include other steps in each exemplary of the invention.Ability Technical staff in domain can be it is clear that other exemplaries can be actual, and these methods are all being weighed completely In the range of sharp claim.
Referring to Fig. 7, flow chart is shown available for the illustrative steps for implementing the present invention.At 701, the first substrate is formed Layer, the first basalis may include rear curved surface and have top surface, and the top surface, which has, may differ from other basalises Surface configuration the first kind shape, and at 702, form the second basalis, the second basalis may include preceding bent table A part for face or intermediate surface or intermediate surface for more complicated device.At 703, electrode layer can be deposited on to the first base On bottom.Deposition can be carried out for example by being vapor-deposited or electroplating.In some example embodiments, the first basalis can be A part for insert with the region in the region and non-optical zones in optics area.In a more exemplary embodiment, Electrode deposition technique can limit interconnection feature simultaneously.
At 704, the first basalis can be further handled so that aligned layer is added on the electrode layer previously deposited.It can incite somebody to action Aligned layer is deposited on the top layer in substrate, and then (for example, friction techniques) are handled to produce table in the standard fashion Levy the notch feature of standard alignment layer or by being handled exposed to high energy particle or light.Work can be handled using exposure The thin layer of property mesomorphic is to form the aligned layer with various characteristics.
At 705, the second basalis can be further handled.Electrode layer can be deposited according to step 703 similar mode On the second basalis.Then in some example embodiments, at 706, dielectric layer can be applied to the second substrate On electrode layer on layer.Dielectric layer is formed as having variable thickness across its surface.For example, dielectric layer can be molded first On basalis.Alternatively, the dielectric layer being previously formed may adhere on the electrode surface of the second base part.
At 707, aligned layer can be formed on the second basalis according to the mode similar to the processing step at 704. After 707, can form at least one of two single basalises of ophthalmic lens insert can engage at any time.708 In some exemplaries at place, the two parts can be made close to each other, then the filling liquid crystal material between the two parts. At 709, the two parts can be made adjacent to each other, then sealing forms the varying optical elements with liquid crystal.
In some example embodiments, two parts of the type formed at step 709 can pass through repetition methods Step 701 produces to 709, the focal power that wherein aligned layer is offset from one another to allow eyeglass to can adjust non-polarized light.Such In exemplary, the two variable optical layers can be combined to form single variable optical insert.At 710, it can incite somebody to action Variable optical is partially attached to energy source, and can place intermediate member or attachment component thereon.
At 711, the variable optical insert that step 710 place obtains can be placed in mold component.Variable optical is inserted Entering thing and can containing or can be free of has one or more parts.In some preferred embodiments, being placed by machinery can Become optical inserts to be placed in mold component.Machinery, which is placed, may include such as robot or other automatics, for example, ability The known device for being used for placement surface installing component in domain.The artificial placement of variable optical insert is also covered by the model in the present invention In enclosing.Therefore, can use effectively can be placed on variable optical insert in casting die part together with energy source Any machinery is placed or automatics so that the polymerization for the reactive mixture that mold component is accommodated will make variable optical part bag Include in the ophthalmic lens of gained.
In some example embodiments, variable optical insert is placed in the mold component for being attached to substrate. Energy source and one or more parts are also attached to substrate, and with variable optical insert telecommunication.Element may include for example with Apply in control to the circuit of the electric power of variable optical insert.Therefore, in some example embodiments, element includes control Mechanism processed is for activating variable optical insert, so as to change one or more optical characteristics, such as the first focal power and the State change between two focal powers.
In some example embodiments, may also placed in can darkening for processor device, MEMS, NEMS or miscellaneous part Learn in insert and made electrical contact with energy source.At 712, reactive monomer mixture can be deposited in mold component.713 Variable optical insert, can be positioned to haptoreaction mixture by place.In some example embodiments, placement can darkening The order for learning part and deposited monomer mixture can reverse execution.At 714, the first mold component is put adjacent to the second mold component Put, to form the chamber of eyeglass, and at least some reactive monomer mixtures and variable optical insert are located in chamber.As above Text discussed, preferred embodiment including also be located at intracavitary and with the energy source of variable optical insert telecommunication and one or Multiple parts.
At 715, it polymerize the reactive monomer mixture of intracavitary.Such as can be by exposed to actinic radiation and hankering One or both polymerize to realize.At 716, ophthalmic lens are taken out from mold component, wherein variable optical insert is attached Or be encapsulated in the insert encapsulation polymeric material of composition ophthalmic lens.
Although the present invention can be used for providing by any of lens materials or be adapted to manufacture rigidity or Soft contact eyeglass Material made from rigidity or Soft contact eyeglass, it is preferable that the present invention eyeglass be that water content is about 0 to about 90% Soft contact eyeglass.It is highly preferred that lens are made up of the monomer containing hydroxyl, carboxyl or both, or by poly- containing organosilicon Compound (such as siloxanes, hydrogel, silicone-hydrogel and combinations thereof) is made.Material available for the eyeglass for forming the present invention Material can pass through the reaction of the blend and the additive of such as initiators for polymerization of macromonomer, monomer and combinations thereof It is made.Suitable material includes but is not limited to the silicone hydrogels made of silicone macromolecule monomer and hydrophilic monomer.
Equipment
Referring now to Fig. 8, the automatic equipment 810 with one or more coffrets 811 is shown.Wrapped on pallet 813 The multiple mold components for respectively coming with associated variable optical insert 814 are included, these parts are sent to coffret 811.Embodiment may include for example individually placed variable optical insert 814 individual interface or simultaneously by it is multiple can darkening Insert 814 is learned to be placed into multiple mold components and be placed in some embodiments multiple in each mold component Interface (not shown).It can be placed by the vertical shift 815 of coffret 811.
The other side of some embodiments of the present invention includes being used to the main body of ophthalmic lens being molded into this The equipment for supporting variable optical insert 814 when around a little parts.In some embodiments, the He of variable optical insert 814 Energy source is attachable to the holding point in lens mold (not shown).Holding point is attachable polymeric material, and the polymeric material can For the same type that will be formed into eyeglass main body.Other exemplaries include the pre-polymer layer in mold component, It is attachable on the mold component to have variable optical insert 814 and energy source.
Included processor in insert device
Referring now to Fig. 9, the controller 900 in some exemplaries available for the present invention illustrated therein is. Controller 900 includes processor 910, and it may include the one or more processors part for being connected to communicator 920.At some In embodiment, controller 900 can be used for transmitting energy to the energy source being placed in ophthalmic lens.
Controller 900 may include coupled to be configured to via communication channel come one of communicator of transmission energy or Multiple processors.Communicator can be used for being placed into ophthalmic lens variable optical insert or transmitting operation variable optical One or more of order of device is electronically controlled.
Communicator 920 can be additionally used in for example with one or more controller equiments or manufacturing equipment component communication.
Processor 910 also communicates with storage device 930.Storage device 930 may include any appropriate information-storing device, Including magnetic memory apparatus (for example, tape and hard disk drive), light storage device and/or semiconductor memory system (for example, with Machine accesses memory (RAM) device and read-only storage (ROM) device) combination.
Storage device 930 can store the program 940 for control processor 910.The finger of the configuration processor 940 of processor 910 Order, is operated thus according to the present invention.For example, processor 910 can receive the placement of description variable optical insert, processing unit The information of placement etc..Storage device 930 can also store the related data of ophthalmology in one or more databases 950,960. Database 950 and 960 may include the specific control logic for controlling the energy for commuting variable optical eyeglass.
Variable optical insert including liquid crystal cell and forming electrolyte layer
The various embodiments of liquid crystal material can be deployed to the insert with the insert layer shaped as shown in Figure 3 In.However, one group of alternative exemplary can be used and include electrode and the insert of forming electrolyte part is formed.Referring to Figure 10, show the variable optical part 1000 with liquid crystal layer 1025 in pluggable ophthalmic lens.Variable optical part 1000 can have such as the similar material diversity and structural relationship discussed in the other parts of this specification.One In a little exemplaries, transparency electrode 1050 can be placed in the first transparent substrates 1055.First lens element 1040 It can be made up of dielectric film, it can be placed in first transparency electrode 1050.In such embodiment, the first lens element The shape of 1040 dielectric layer can in shown dielectric thickness forming region change shape.In some embodiments In, shaping layer can by the first transparency electrode 1050 injection molding formed.
Various types of liquid crystal layers 1025 can be between first transparency electrode 1050 and second transparency electrode 1015.Second Transparency electrode 1015 is attached to top substrate layer 1010, wherein formed from top substrate layer 1010 to bottom substrate 1055 Device can include the variable optical part 1000 of ophthalmic lens.Two aligned layers 1030 and 1020 can surround liquid crystal layer 1025.It is right Neat layer 1030 and 1020 can play a part of limiting the tranquillization orientation of ophthalmic lens.In some example embodiments, electrode Layer 1015 and 1050 and can cause orientation to be orientated from tranquillization orientation transition at least one be powered with the telecommunication of liquid crystal layer 1025.
In the embodiment of some exemplary alternatives, the variable optical part 1000 of ophthalmic lens can not have aligned layer 1020 and 1030 but transparency electrode 1015 and 1050 and the direct communication of liquid crystal layer 1025.In such exemplary, The energization of liquid crystal layer 1025 can cause the phase transformation of liquid crystal, so as to change the optics matter of the variable optical part 1000 of ophthalmic lens Amount.
Referring to Figure 11, replacing for the variable optical part 1100 with liquid crystal layer 1125 in pluggable ophthalmic lens is shown For form.It is similar to the variable optical part 1000 in Figure 10, the layering of substrate 1135 and 1155 and the first lens element 1145 and second the dielectric substance on both of lens element 1140 can produce the three of the optical property that can influence liquid crystal layer 1125 Tie up shape.On first basalis 1155 of the variable optical part 1100 that first transparency electrode 1150 can be located at ophthalmic lens.
Because each layer 1135,1155,1145 and 1140 included in variable optical part 1100 is respectively provided with three-dimensional spy Property, therefore the property of top substrate layer 1110 and bottom substrate 1155 is based on than planar optics embodiment or more typically The embodiment of liquid crystal is more complicated.In some example embodiments, the shape of top substrate layer 1110 may differ from bottom Basalis 1155.Some exemplaries include the first lens element 1145 and the second mirror formed by dielectric substance Piece element 1140.Second lens element 1140 can have the dielectric characteristic for being different from the first lens element 1145 at low frequency, But can be with terms of matching in spectrum with the first lens element 1145.The material of second lens element 1140 may include example The waterborne liquid such as matched with the optical property of the first lens element 1145.
Variable optical part 1100 may include middle basalis 1135, and the middle basalis may be formed at and can deposit thereon The superficial layer of liquid crystal layer 1125.In some example embodiments, if second lens element 1140 is in liquid shape Formula, then middle basalis 1135 may also function as the effect for including second lens element 1140.Some exemplary embodiment party Case may include the liquid crystal layer 1125 between the first aligned layer 1130 and the second aligned layer 1120, wherein the second aligned layer 1120 It is placed in second transparency electrode 1115.Top substrate layer 1110 may include to form the combination of the layer of variable optical part 1100, The variable optical part may be in response to the electric field applied across its electrode 1150 and 1115.Aligned layer 1120 and 1130 can be by each Kind mode influences the optical characteristics of variable optical part 1100.
Include the liquid-crystal apparatus of nano grade polymer dispersing liquid crystal layer
Referring to Figure 12 A and 12B, the variable optical part (Figure 12 A) in pluggable ophthalmic lens, the variable optical are shown Part has polymeric layer 1235 and is shown in the nano grade polymer dispersed LCD droplet at multiple positions (for example, 1230) place.It is poly- Close region can assign membrane structure definition and shape, and rich in liquid crystal material can be for being transmitted through this for droplet (such as 1230) The light of layer has significant optical effect.
Nanoscale droplet is available, because they have sufficiently small size so that for scattering process, be powered and Refractive index change between droplet and adjacent layer under non-power status can be inapparent.
Liquid crystal is constrained to nanoscale droplet and may be such that rotation of the molecule in droplet is more difficult.The effect can cause to make Liquid crystal molecule is aligned to "on" position with larger electric field.Equally, the engineering of the chemical constitution of liquid crystal molecule also assists in limit Surely allow to establish the condition of the relatively existing fringing field needed for aligned condition.
It may be present to be formed the various ways of the polymer dispersed liquid crystal layer of type shown in 1200.In the first example In, the mixture of monomer and liquid crystal molecule can be formed, homogenization mixture is heated to form wherein combining.Then, will can mix Compound applies to front curve insert 1210 and then by adding rear curved surface or intermediate insert 1245 by the mixture It is encapsulated in lens insert.Then, the insertion for including liquid crystal compound can be cooled down under controlled and predetermined speed Thing.When mixture cools down, the precipitable droplet in droplet or layer in region of relatively pure liquid crystal monomer.Then can perform to It is catalyzed the subsequent processing steps of monomer polymerization.In some instances, actinic radiation can be applied on mixture, to trigger polymerization Reaction.
In another example, the mixing of liquid crystal and liquid crystal monomer also can perform.In this example, mixture can be applied To front curve part 1210 or rear curved surface part or median curved surface part 1245, additional part then can be applied.The mixture of application can Polymerisation can be triggered comprising component.Or actinic radiation can direct projection trigger polymerization on the mixture.Using monomer and The certain material selection of initiator, polymerisation can be carried out with special speed and ad hoc fashion, the mode to be formed with The area with high mercury of the similar liquid crystal monomer of droplet in the converging network of droplet or material.These droplets can be by also comprising certain The polymeric material of the liquid crystal molecule of amount surrounds.These liquid crystal molecules can before polymeric matrix polymerize completely in the matrix from By moving, and the orientation effect in its adjacent area may also be enough perceived, wherein adjacent area can be applied by liquid crystal compound Other liquid crystal molecules or alignment feature structure on insert surface added to.Aligned region can determine that the liquid in polymer matrix body The quiescent condition of brilliant molecule and the fixed orientation that the liquid crystal molecule in the zone of convergency can be determined after significantly polymerization occurs.Together Sample, the alignment liquid crystal molecule in polymer also can apply orientation effect to the liquid crystal molecule in droplet or liquid crystal molecule droplet.Cause This, before insert is formed using liquid crystal intermediate layer, have combination the zone of convergency and including the layer in droplet region can be with Natural aligned condition is present, and the natural aligned condition is predefined by the alignment feature structure being included on insert.
Many modes may be present so that liquid crystal molecule is attached in polymerization or gelation zone.Described in being previously described Some modes.However, any method for producing polymer dispersed liquid crystal layer may include technology in the scope of the present invention and Available for producing Ophthalmoligic instrument.Previous example is referred to using monomer to produce the polymer layer around liquid crystal molecule droplet.Polymerization The state of monomer can be polymeric material crystal form, or in other embodiments can also polymerized monomer gel shape Formula is present.
Variable optical part in Figure 12 A can have other aspects, and other described aspects can be by as in this specification Similar diversity material and structural relationship discussed in other parts limit.In some example embodiments, can incite somebody to action Transparency electrode 1220 is placed in the first transparent substrates 1210.First lens surface can be by dielectric film (and in some examples Property embodiment in, the aligned layer that can be placed in first transparency electrode 1220) form.In such exemplary, The shape of the dielectric layer of first lens surface can in dielectric thickness forming region change shape.Such regional change Shape can be that lens element introduces the additional focusing ability for exceeding the geometric effect described in reference picture 3.In some exemplary implementations In scheme, for example, shaping layer can be formed by combining injection molding in the substrate 1210 of first transparency electrode 1220.
In some example embodiments, first transparency electrode 1220 and second transparency electrode 1240 can be variously Shaping.In some instances, the independent different zones that shaping can result in can individually apply energization.In other examples, it is electric Pole is formed as each pattern, and such as from center of lens to the spiral on periphery, the spiral can apply across liquid crystal layer 1230 and 1235 can Changed electric field.In either case, in addition to the shaping of the dielectric layer on electrode or such shaping can be replaced and perform this Class electrode forming.The electrode forming of these modes can also introduce the additional focusing ability of lens element under operation.
Polymer dispersed liquid crystal layer 1230 and 1235 can be located at first transparency electrode 1220 and second transparency electrode 1240 it Between.Second transparency electrode 1240 is attached to bottom substrate 1245, wherein from top substrate layer 1210 to bottom substrate 1245 devices formed may include the variable optical part of ophthalmic lens.Two aligned layers may be alternatively located on dielectric layer and Liquid crystal layer 1230 and 1235 can be surrounded.Aligned layer can play a part of limiting the tranquillization orientation of ophthalmic lens.In some embodiment party In case, electrode layer 1220 and 1240 can with the telecommunication of liquid crystal layer 1230,1235, and cause orientation from tranquillization orientation transition be at least One kind, which is powered, to be orientated.
In Figure 12 B, the energization effect of electrode layer is shown.Being powered can cause to establish electricity across the device as shown in 1290 .Electric field can cause liquid crystal molecule to realign itself with the electric field formed.As shown in 1260, the micro- of liquid crystal is being included In drop, molecule can realign, as shown in current vertical curve.
Referring to Figure 13 A-C, the alternative form of the variable optical insert 1300 in pluggable ophthalmic lens is shown, it has There is the liquid crystal layer of the droplet 1330 including the zone of convergency 1320 and rich in liquid crystal.The various elements that can be limited to around liquid crystal region Each aspect can have as relative to the similar diversity described in the variable optical insert in Figure 12 A-B.Therefore, may be present Preceding optical element 1310 and rear optical element 1340, wherein in some exemplaries, these optical elements can for example exist There is one or more of electrode, dielectric layer and aligned layer thereon.Referring to Figure 13 A, the overall situation of droplet position can be observed Pattern, as can be as shown in dotted line 1305.The zone of convergency 1320 of surrounding can be formed such that shortage or relative shortage droplet, and Droplet such as 1330 can be formed at other positions.It can be limited using variable by the shaped profile of the droplet shown in the border at 1305 The additional mode of the liquid crystal layer forming apparatus of optical inserts.The optical radiation of liquid crystal layer is passed through by with interacting therewith The accumulation effect in droplet region.Therefore, the part for providing light the layer of the droplet of comparatively high amts will be to light effectively with higher Effective refractive index.In alternative interpretation, the thickness of liquid crystal layer can be effectively treated as the presence limited is less micro- The border 1305 of drop and change.Referring to Figure 13 B, droplet can be nano level, and in some example embodiments can shape Into in the layer without externally-oriented aspect.As shown in 1350, for the liquid crystal molecule in droplet, droplet can have There is non-alignment and random state.Figure 13 C are proceeded to, the potential of the electrode of the either side by being applied to liquid crystal layer applies Electric field 1370 can cause the alignment of the liquid crystal molecule in droplet, as shown in the example of entry 1360.This alignment will cause to have Imitate the change of refractive index, so that the light beam near droplet will be subjected to this change.This and the droplet region in liquid crystal layer Variable density exists and is combined the focusing effect that can form electrically variable, the focusing effect of the electrically variable be by including The change of effective refractive index in the appropriate shaped region of droplet containing liquid crystal molecule is realized.Although the shaping with droplet The exemplary in region be shown to have form liquid crystal layer nanoscale droplet, but may be present because droplet have it is larger Size and caused additional embodiment, and aligned layer can be used to produce it in the case where larger droplet region be present His exemplary.
Include the liquid-crystal apparatus of liquid crystal polymer dispersing liquid crystal layer
Referring to Figure 14 A, it illustrates in pluggable ophthalmic lens there is liquid crystalline polymer layer 1430 and polymer to disperse The variable optical part of liquid crystal layer 1440.Liquid crystal polymer dispersing liquid crystal layer can be by being rich in liquid crystal in other zones of convergency 1430 The drop of the separation of molecule 1440 is formed.The zone of convergency can assign membrane structure definition and shape, and be rich in the drop of liquid crystal material There can be notable optical effect to the light for being transmitted through layer.
It can be used for being formed in the application of variable optical component in the index of refraction effects of liquid crystal layer, the processing zone of convergency causes greatly Amount combine liquid crystal molecule be included in gelling or can be useful in the zone of convergency.This combination can allow orientation effect from knot The liquid crystal components that the aligned layer in the surface of insertion apparatus is delivered in polymer dispersion liquid drop are closed, in Figure 14 A diagram, By showing that the liquid crystal molecule of alignment is incorporated in both the zone of convergency and drop across parallel lines existing for these regions.This Outside, the liquid crystal molecule being attached in polymeric material or binder materials can allow polymer when in quiescent condition and in electric field The relative matching of the reflectivity of region and droplet area.The relative matching of refractive index between both components of liquid crystal layer can be most The scattering of the light of interface between the two regions of smallization.
It may be present to be formed the various ways of the liquid crystal polymer dispersing liquid crystal layer of type shown in Figure 14 A.First In example, the mixture of monomer and liquid crystal molecule can be formed, wherein combination is heated to form homogenization mixture.Then, may be used Mixture is applied to front curve insert 1410 and then by adding rear curved surface or intermediate insert 1460 and mixes this Compound is encapsulated in lens insert.Then, can be cooled down under controlled and predetermined speed includes liquid crystal compound Insert.When mixture cools down, the precipitable droplet in droplet or layer in region of relatively pure liquid crystal monomer.Then can hold Go to trigger the subsequent processing steps that monomer polymerize.In some instances, actinic radiation can direct projection to drawing on the mixture Hair polymerization.
And for example, the mixture of liquid crystal and liquid crystal monomer can also be formed.In this example, mixture can be applied to front curve Part 1410 or rear curved surface part or median curved surface part 1460, then can apply additional curved-surface piece.The mixture of application may be Including component with catalytic polymerization.Or actinic radiation can direct projection trigger polymerization on the mixture.Utilize monomer and catalysis The certain material selection of agent, polymerisation can be carried out with special speed and ad hoc fashion, and the mode causes and droplet or material Converging network in the similar liquid crystal monomer of droplet area with high mercury.These droplets can also be included a certain amount of liquid crystal point The polymeric material of son surrounds.These liquid crystal molecules can be moved freely in polymer matrix body until it reaches the specific shape of polymerization State.These liquid crystal molecules may also enough perceive the orientation effect in its adjacent area, and wherein adjacent area can be liquid crystal compound Other liquid crystal molecules or alignment structures on insert surface be applieding to.Aligned region can determine that the liquid in polymer matrix body The quiescent condition of brilliant molecule.Equally, the alignment liquid crystal molecule in polymer also can be to the liquid crystal molecule or liquid crystal molecule in droplet Droplet applies orientation effect.Therefore, before insert is formed using liquid crystal intermediate layer, have combination the zone of convergency and including Droplet region layer can natural aligned condition exist, the natural aligned condition is by the alignment feature that is included on insert Structure predefines.
Many modes may be present so that liquid crystal molecule is attached in polymerization or gelation zone.Described in being previously described Some modes.However, any method for producing polymer dispersed liquid crystal layer may include technology in the scope of the present invention and Available for producing Ophthalmoligic instrument.Previous example is referred to using monomer to produce the polymer layer around liquid crystal molecule droplet.Polymerization The state of monomer can be polymeric material crystal form, or in other embodiments can also polymerized monomer gel shape Formula is present.
Variable optical part at Figure 14 A can have other aspects, other described aspects can by such as this specification its Similar diversity material and structural relationship discussed in his part limit.In some example embodiments, can be by thoroughly Prescribed electrode 1450 is placed in the first transparent substrates 1460.First lens surface 1445 may include dielectric film, and at some In exemplary, it may include the aligned layer that can be placed in first transparency electrode 1450.In such exemplary embodiment party In case, the shape of the dielectric layer of the first lens surface 1445 can forming region changes in shown dielectric thickness shape Shape.The shape of such regional change can be that lens element introduces the additional focusing ability for exceeding the geometric effect described in reference picture 3. In some example embodiments, for example, shaping layer can be by injecting in the combination of the substrate 1450 of first transparency electrode 1445 Mold and formed.
In some example embodiments, first transparency electrode 1445 and second transparency electrode 1425 can be variously Shaping.In some instances, the independent different zones that shaping can result in can individually apply energization.In other examples, it is electric Pole is formed as pattern, can apply across liquid crystal layer 1430 and 1440 variable to the spiral on periphery, the spiral such as from center of lens Electric field.In either case, in addition to the shaping of the dielectric layer on electrode or such shaping can be replaced and performed such Electrode forming.The electrode forming of these modes can also introduce the additional focusing ability of lens element under operation.
Polymer dispersed liquid crystal layer 1430 and 1440 can be located at first transparency electrode 1450 and second transparency electrode 1420 it Between.Second transparency electrode 1420 is attached to top substrate layer 1410, wherein from top substrate layer 1410 to bottom substrate 1450 devices formed may include the variable optical part 1400 of ophthalmic lens.Two aligned layers may be alternatively located on dielectric layer 1445 and 1425 at and can surround liquid crystal layer 1430 and 1440.Aligned layer at 1445 and 1425 can play restriction ophthalmology The effect of the tranquillization orientation of eyeglass.In some embodiments, electrode layer 1420 and 1450 can be logical with the electricity of liquid crystal layer 1430,1440 Letter, and cause orientation to be orientated from tranquillization orientation transition at least one be powered.
In Figure 14 B, the energization effect of electrode layer is shown.Being powered can cause to establish electricity across the device as shown in 1490 .Electric field can cause liquid crystal molecule to realign itself with the electric field formed.Such as the molecule in the polymeric part of layer At 1470 and in the droplet comprising liquid crystal 1480 shown in, molecule can realign, as shown in current vertical curve.
Referring to Figure 15, it illustrates the variable optical with two liquid crystal layers 1520 and 1550 in pluggable ophthalmic lens The alternative form of insert 1500, in two liquid crystal layers can be each liquid crystal and polymer dispersed liquid crystal layer, such as reference chart 14A and 14B are discussed.Each of aspect in the various layers of liquid crystal region can have such as relative to Figure 14 A and figure The similar diversity described in variable optical insert in 14B.In some example embodiments, aligned layer can be by polarization spirit Sensitivity is introduced into the function of single liquid crystal cell.By the way that the element based on the first liquid crystal formed by the first substrate 1510 (is enclosed Around 1520 and second substrate 1530 space in wherein interbed can have first polarization preference) with by the second substrate 1540 Second surface formed based on the second liquid crystal element (around 1550 and the 3rd substrate 1560 space in intermediate layer have the Two polarization preferences) combination, combination can be formed, the combination can allow the insensitive eyeglass of the polarization aspect to the incident light on eyeglass Electrically variable focus characteristics.Point feature structure in the diagram in region 1550 can show alignment liquid crystal molecule, its align with The alignment of alignment molecule at 1520 in said layer is vertical.The electric field applied at 1590 is shown across two liquid crystal layers Any one of electric field can induce liquid crystal molecule realigning in droplet region.In some example embodiments, There can be independent ability to apply electric field across any one of liquid crystal region 1520 and 1550, as shown in Figure 15.At it In his exemplary, two layers can be made while be powered by applying electrical potentials to the electrode of Ophthalmoligic instrument.
At exemplary elements 1500, using four basalises 1510,1530,1540 and 1560 formed with Figure 14 A and The all kinds and the combination of multifarious two electroactive liquid-crystal layers that example in 14B is associated.In other examples, device It can be formed by the combination of three different bases, wherein intermediate base bottom may be from the shown combination of 1530 and 1540.Four The use of base part can provide convenient example for the manufacture of element, wherein it is similar with 1550 liquid crystal layers construction to surround 1520 The step of device, wherein processing difference can be with limiting the alignment feature structure for liquid crystal cell part is relevant.In other examples In, if the lens element around single liquid crystal layer being shown at the 1400 of Figure 14 A in rotated ninety degrees to be spherically symmetric or Symmetrically, then can be by the way that two single inserts made of each two base parts of freedom be revolved relative to each other before assembly Turn 90 degree of structures that the two parts are assembled into four base parts with type shown in 1500.
Include the Ophthalmoligic instrument of the liquid crystal layer with different anchoring strengths
Referring to Figure 16 A, the graphical representation of exemplary for including the Ophthalmoligic instrument of the liquid crystal layer with different anchoring strengths can be observed. Ophthalmology insert may include the front curve part 1620 that front curve electrode layer 1610 and rear curved surface electrode layer 1615 are placed thereon With rear curved surface part 1625.In some example embodiments, anchoring material layer can be added on the surface of electrode layer or It is added in some cases on the dielectric layer on electrode layer.The surface of anchor layer can chemically or physically be changed with various Enter so that can be spatially varying with the surface interaction with after-applied liquid crystal layer 1605 across the surface of processing.In scale and In the exemplary manner that physical phenomenon is not illustrated with actual scale, anchoring strength can be shown at 1630,1640 and 1650.If The adhesion strength represented by three anchoring bonds of anchorage point at 1630 strengthens, then liquid crystal molecule is anchored at into surface region On influence can be transferred into adjacent liquid crystal molecule through whole layer.Surface region 1640 is shown by two anchoring bonds Adhesion strength can be less strong compared with region 1630, but also than 1650 at surface region it is strong, the surface district at 1650 The anchoring strength in domain is shown by single anchoring bond.Under static and non-through power mode, the liquid crystal of liquid crystal layer 1605 can be by by liquid Preferred embodiment alignment shown in the rod diagram of brilliant molecule, the liquid crystal molecule exist in a manner of with surface topography general parallel orientation.
In the presence of an electrical field, shown at 1690, liquid crystal molecule can interact with electric field and have thereon Power is with along the electric field orientation established.As previously mentioned, liquid crystal layer can be transmitted through by anchoring the intensity of interaction And cause the different skews of the liquid crystal molecular orientation at the diverse location in neighbouring surface anchoring site.It is for example, strong mutual The zone of action can have the liquid crystal molecule not almost being present in by the disturbance of electric field 1690 at 1635.However, most weak anchorage zone It can be alignd at 1655 with electric field 1690.In addition, as shown in 1645, orientation can be presented on the area of intermediate anchor intensity 1640 The intermediateness alignd at domain with electric field 1690.
Therefore, spatially the molecule in uniform molecularly oriented such as Figure 16 A is present such as electric field shown in fig. 16b In the case of the orientation of variable area can be presented.Because liquid crystal molecule can be presented pair based on its alignment relative to incident radiation The different refractive indexes of incident radiation, can be in electrode come the ability of the orientation of control area change based on the processing to anchor layer 1615 and 1625 optical effects for being energized to allow to have programmed during generation electric field 1690 are activated.Moreover, refractive index is in space The details of change in meaning may be based on the intensity of applied electric field and smooth change.This can be applied by spaning electrode layer again The electric field potential or the level of voltage that add controls.Therefore, including it the Optical devices of liquid crystal layer of anchor layer are applied to can cause Device has the bistable character of the index distribution spatially changed in the case where "on" position is to non-power status, the anchoring Layer has the different intensity limited by region from liquid crystal layer anchoring interaction, or alternatively, may be present makes electrode be energized to change Continuous optical characteristics caused by the potential or voltage of change.
Include the Ophthalmoligic instrument of the liquid crystal layer with different anchorings direction (pre-tilt)
Reference picture 17A-B, the class of the spatial variations of alignment for designing the liquid crystal layer between electrode zone can be observed Like but alternative exemplary.In Figure 17 A, the eye for including the liquid crystal layer of the alignment orientation with change can be observed The graphical representation of exemplary of section's device.Ophthalmology insert may include to be placed with front curve electrode layer 1715 and rear curved surface electrode layer thereon 1720 front curve part 1705 and rear curved surface part 1710.In some example embodiments, molecule can be made in liquid crystal layer The material layer of aligned adjacent can be added on the surface of electrode layer or be added in some cases electricity Jie on electrode layer On matter layer.Aligned layer 1725 can by by it is various chemically and physically handle in a manner of formed after be formed or handle so that Form the layer that wherein its molecule is orientated in a manner of variable but sequencing across its surface.Some orientations in these orientations can induce Liquid crystal molecule is aligned to along first orientation as shown in 1735 near the aligned layer at 1730 may be exactly perpendicularly to the The orientation of two alignment orientations 1735, the first alignment orientation 1735 can be shown at 1745 of the molecule near the aligned layer at 1740 Go out.
Orientation of the molecule that this discussion is concentrated in aligned layer at first surface, but in fact, with front curve and In the ophthalmology insert of rear curved surface, carried out on each surface that the processing of aligned layer can be in surface.At some exemplary places In reason, the pattern being spatially varying on front curve part can have the space pattern of the equal restriction on rear curved surface part.At this In the case of a little, it is uniform that the orientation of the molecule in liquid crystal layer, which can be shown as cross-layer, and orientation can be along face component in space Middle change, as shown in Figure 17 A.In other examples embodiment, with forming the rear curved surface part in ophthalmology insert device On aligned layer on space pattern when comparing, different space patterns may be formed in the aligned layer on front curve part.It is such Embodiment can cause the alignment of the change of the liquid crystal molecule on the surface by across ophthalmology insert device to control, and pass through In a controlled manner from the alignment at the given locus on the surface of the orientation across the preceding optical element of liquid crystal layer to rear optical element Additional change control.
Reference picture 17B, show the diagram of effect of the applied electric field on the molecularly oriented in liquid crystal layer.1701 Place, establishes electric field, the two electrodes are located at front curve part respectively by applying electrical potentials to two electrodes 1760 and 1765 1710 and rear curved surface part 1705 on.It can be observed, can not be by applying by the orientation of the molecule of the aligned layer shown in 1770 and 1780 Added electric field 1701 and changed in graphical representation of exemplary.However, the interaction of electric field and liquid crystal molecule may be such that it can branch pairing The interaction of neat layer, and therefore the molecule in liquid crystal layer can align with electric field, as shown in entry 1775 and 1785.It can also note Anticipate and arrive, the diagram can represent the simplification of actual conditions, because in the region of very close aligned layer, it is understood that there may be not with that can show The orientation being aligned as going out, but can estimate that the effect of the set of the liquid crystal molecule as an entirety is similar to molecule across sky Between position and electric field relatively uniform shown effect of aliging.
Some modes may be present to be formed with the aligned layer shown in exemplary approach at 1725, or thus herein Any one in the aligned layer referred in various embodiments.In one example, including the chemical backbone of azo-based benzene The dye materials of molecule can be applied on electrode layer or on electrode layer on cambial dielectric.Idol based on chemical part Pyridine can exist with anti-configuration and cis-configuration.In many examples, anti-configuration can be the thermodynamics in two kinds of configurations More stable state, and therefore at a temperature of such as 30 degrees centigrades, most of molecule of azo benzene layer can be trans It is orientated under state.Due to the electronic structure of different molecular configuration, both configurations can absorb the light of different wave length.Therefore, pass through Irradiation, on illustrative sense, in the case of the light with the nano level wavelength of 300-400, the trans shape of azobenzene molecule Formula can be isomerized to cis form.Cis form can relatively quickly be back to anti-configuration, but two kinds of conversions can cause Molecule is converting physical motion when occurring.In the presence of polarised light, the absorption of light can be more or less likely to be dependent on Trans-azobenzene molecule is relative to the polarization vector of light and the orientation of incidence angle for irradiating it.With specific polarization and incidence Azobenzene molecule can be orientated by the gained effect of the radiation at angle relative to incident polarization axle and plane of incidence.Therefore, by by occasionally The aligned layer of pyridine molecule irradiates into appropriate wavelength and is predefining and under the polarization and incidence angle of spatial variations, can formed The layer of spatial variations in the alignment with azobenzene molecule.Azobenzene molecule in static meaning also with the liquid in its environment Brilliant interaction of molecules, so as to form the liquid crystal molecule of different alignment as shown in Figure 17 A.
Due under the trans and cis state as schematically shown in Figure 17 C-E in acquisition face orientation and out-of-plane orientation Chance, azobenzene material can also be allowed for other chances in modulation anchoring direction.These materials are sometimes referred to as layer order. Liquid crystal aligning modulation for such material can also be obtained by spatially modulating photochemical luminous intensity.Referring to Figure 17 C, Azobenzene molecule at 1742 can be orientated by anti-configuration while also be anchored to surface.In the configuration, liquid crystal molecule can be such as Orientation shown in 1741.In alternative cis-configuration, azobenzene molecule 1743 can influence liquid crystal molecule and be taken as shown in 1740 To.Reference picture 17E, the combination of liquid crystal aligning are shown as may conform to this paper inventive concepts.
Other aligned layers can be formed by different way, such as, be based on using polarized incident radiation by local polarized incident light The preferred orientation of the polymerization of induction controls the spatial alignment of polymer layer.
Reference picture 17F, show the expression of gradient-index optics part.Anchoring principle and ginseng shown in reference picture 16A and B It can be used for producing refractive index with radial distance according to the exemplary related to aligned layer shown in Figure 17 A, B and C Parabola changes.Mathematically represent that the relation that refractive index n (r) changes to radial distance r such parabola is found in 1796 Place.A kind of figure of phenomenon for flat eyeglass object represents to be found at 1790, wherein the refractive index at 1791 can be can The of a relatively high refractive index represented by the density of the black in diagram.With such as in the radially change of refractive index shown in 1792 Change, the refractive index can be the density for the reduction that relatively low refractive index can also be shown as black.Optical element can be formed Change with refractive index with the parabola of radial distance, and can be the skew of incident radiation phase to the effect of light to cause light Focusing, as shown in 1793.The mathematics estimation of the focus characteristics of this gradient-index optics part can be shown at 1795.
Include the Ophthalmoligic instrument of cycloid wave plate eyeglass
The polarization holograms of Special Category；That is, cycloid diffraction wave plate (CDW) generally provides absolutely diffraction effect Rate and can be spectral width band.The structure for the cycloid diffraction wave plate being illustrated schematically in Figure 18 includes anisotropic material film 1810, wherein continuously rotated in the plane of film of the direction of optic axis in film 1810 as shown in pattern 1820.From such wave plate Typical optical result refers to 1830 and 1840 and found.For visible wavelength, generally at about one micron Almost realize under the conditions of the half-wave phase delay met in (0.001mm) thick liquid crystal polymer (LCP) film and absolutely imitate Rate.Reference picture 18A, the closely diagram that the orientation programming in cycloid wave plate designs can occur are found at 1890.Given Axial direction on, such as 1885, pattern can from the change in orientation parallel to axial direction 1860, pass through towards and axial direction 1870 These orientations of vertical orientation, and pass through the parallel-oriented axial direction turned again at 1880.
Can by consider the linearly polarized light beam for being λ along wavelength of the z-axis vertical incidence on birefringent film in x, y plane come Understand that wherein slim grating is shown with such unique situation in efficient optics.If the thickness L of film and film Optical anisotropy Δ n is chosen to L Δ n=λ/2, and the optical axis of film is orientated relative to the polarization direction of inputs light beam Cheng Sishi five (45) spends (angle α), then the polarization of inputs light beam is by rotation 90 (90) degree (angle beta).Here it is half-wave wave plate to act as Mode.Po-larization rotational angular (β=2 α) at the output of such wave plate depends on orientation d=(dx, dy)=(cos of optical axis α, sin α).Combinations of low molecular weight liquid crystals material and polymer-type liquid crystal material allow d in plate surface with high spatial frequency α =qx is continuously rotated, and wherein spatial modulation period ∧=2 π/q can have comparativity with the wavelength of visible ray.Such wave plate Output at the polarization of light therefore modulated in space (β=2qx), and the rotatory polarization at the output of such wave plate Electric field in pattern is averaged,<E>=0, and not direction transmission of the light along incident beam.Thus obtained pattern of polarization Corresponding to the superposition for the two circular polarization light beams propagated under ± λ/the ∧ of angle.In the case of circular polarization inputs light beam (+ 1st or -1st) one in the order of diffraction is only existed, this is dextrorotation or left-handed light beam depending on light beam.
The cycloid diffraction wave plate of specific type is shown in fig. 19 a.In such exemplary, referred in Figure 18 Cycloid diffraction wave plate pattern further can be asked for the form factor of ophthalmic lens insert device.In this illustration, shape Depict in a flat manner, but similar orientation programmed shape can equally such as lens insert be sent out across three-dimensional surface It is raw.At 1910, cycloid diffraction wave plate pattern can spiral rotating radial pattern, the radial pattern can be located at flat surfaces It is upper or in fold surface such as spherical surface to on part, and the anglec of rotation of liquid crystal or liquid crystal polymer molecule can be come Modulated from the parabolic function at wave plate center.This class formation is used as the mirror that may include advantages below compared with other liquid crystal lens Piece：Different or higher lens intensity (being measured as focal length or diopter) can be obtained in same thickness or relatively thin film. In some exemplaries, the thickness of the film can be only 1-5 μm.Another advantage of eyeglass can be in focal power just The chance switched between value and negative value, the focal power are adjusted by switching the polarization for the light being incident on device.Show at some In example property embodiment, the use of liquid crystal phase retardation plate can be used for promoting polarization switching.It is lens action and switching action it Between decoupling can allow multifunctionality in the electrical characteristics of system, such as electric capacity and power consumption, as nonrestrictive example. For example, even if eyeglass itself can be selected as slim, the thickness of liquid crystal phase retardation piece can be chosen to minimize power consumption.
The cycloid diffraction lens pattern in space formed between preceding insert and rear insert can form electroactive embedding Enter variable optical insert.As shown in fig. 19b, by applying electrical potentials to the electrode in preceding insert and rear insert, Electric field 1990 can be established across the liquid crystal layer that cycloid is orientated.When lcd segment aligns with the electric field as shown in 1920, gained Alignment can make liquid crystal layer become spatially uniform film without the special nature of diffraction wave plate eyeglass.Therefore, as non-limit Property example processed, there is the pattern of focal power can not cause the focusing effect for applying electric field as shown in 1920 at 1910.
Referring to the closely figure of the alignment of the liquid crystal molecule of the visible trochoidal wave sheet type embodiment of Figure 20 entry 2000 Show.Show the pattern of a quarter and can be observed from center of lens 2010 radially outward for example to 2020 and to outside Molecule alignment orientation conversion.The radial direction that the orientation can be similar to the programming pattern for example with reference to shown in figure 18 can be observed Rotation.
The manufacture of liquid crystal and liquid crystal polymer diffraction wave plate can be multistep process.For printing the cycloid from mother matrix wave plate The technology of diffraction wave plate may be adapted to be mass produced with high quality and large area.This can be related to can increase complexity, into Originally other embodiments with the hologram device of stability problem are compared.Printing technology can use and derive from line or circular polarization The rotatory polarization pattern obtained at the output of mother matrix cycloid diffraction wave plate of inputs light beam.When use linear polarization inputs light beam When, printing the cycle of wave plate can double.Compared to the direct record in Photoinduced Optical Anisotropy material, the liquid based on light alignment Crystalline polymer technology can have the advantages of liquid crystal polymer commercially available based on such as Merck.By the typical of response type mesomorphic (usual 3,000 (3000) rpm is simultaneously held for liquid crystal polymer (referring to supplier (Merck) name, such as RMS-001C) spin coating Continuous 60 (60) seconds) on light aligned layer, and carry out UV and polymerize for about ten (10) minutes.Multiple layers can be coated for broadband to spread out Penetrate or for adjusting peak wavelength of diffraction.
Include the Ophthalmoligic instrument of the forming electrolyte layer with polymer dispersed liquid crystal layer.
Referring to Figure 21, the exemplary for including the Ophthalmoligic instrument of forming electrolyte layer can be observed.This is exemplary Embodiment is in terms of many discussed in the exemplary shared relationship related to Figure 10.It is considerable at 2140 Observe forming electrolyte layer corresponding with the similar characteristics structure at 1040.In the exemplary related to Figure 21, Dielectric layer 2140 can be formed through the monomer segment of the control polymerization for forming polymer dispersed liquid crystal layer.At some In exemplary, layer 2140 can be included in a large amount of liquid crystal molecules being embedded during polymerization technique.If the shape of layer 2140 There is aligned layer such as 2170 into the surface thereon, then liquid crystal molecule can snap to the pattern of aligned layer and in some examples Property embodiment in formed polymer layer 2140 when be aligned.
The processing of monomer comprising liquid crystal molecule then can be polymerize in a case where, can be formed comprising liquid crystal molecule Polymer disperses space such as 2130.In other regions of the layer of subsequent polymerization at 2120, it can be formed comprising fluid molecule Polymeric layer.In some example embodiments, may be present at 2165 can also be orientated liquid during polymerization process The aligned layer of brilliant molecule.
Diagrammatically show of Figure 21 electrode layer 2160 and 2175 be present and aligned layer 2170 and 2165 can be therebetween The exemplary of preceding substrate 2110 and rear substrate 2150.For example, aligned layer can perform in a manner previously described with And patterning, or can be performed by industrial standard friction process.Figure 21 flat orientation that diagrammatically show each layer.This Being given for example only property purpose is illustrated, and the optical element bent is (for example, can be located at the Ophthalmoligic instrument of such as haptic lens etc In) this structural order can be enjoyed, the difference is that the shape without diagram.In some example embodiments, it is such as empty Gap feature structure 2130 is nano level embodiment, it may be unnecessary to the aligned layer in structure.In these features, in void layer The random orientation of molecule can be desirable.
In addition, before with reference to as described in the polymer dispersed liquid crystal layer formed in ophthalmology insert device, by across electricity Pole layer applies potential and is formed and may be such that the liquid crystal layer being present in space aligns and changed with electric field by the electric field of liquid crystal layer It is presented to the refractive index through the light of Ophthalmoligic instrument.Forming electrolyte 2140 may be such that any portion of part by liquid crystal layer Electric field changes with forming electrolyte profile.In some example embodiments, forming electrolyte layer can be by dividing with polymer Dispersion liquid crystal layer is formed compared to the material with similar optical dielectric characteristic but with different dielectric characteristics.
Referring to Figure 21 A and Figure 21 B, single liquid crystal droplet 2131 is shown to show various possible orientations aspects. In some exemplaries, especially in the case where droplet has nano-grade size, the non-through electrical orientation at Figure 21 A can The droplet of random orientation pattern (as shown in the figure) is shown with wherein liquid crystal molecule.In other exemplaries, make Following non-through electrical orientation configuration can be produced with aligned layer, wherein for example molecule can be aligned to parallel to surface, if Figure 21 B are 2132 Shown in.In either of these cases, when applying electric field 2190, liquid crystal molecule can with field parallel, such as Figure 21 C Shown in 2133.
It is included in the Ophthalmoligic instrument of the polymer dispersed liquid crystal layer of the liquid crystal droplet density in polymeric layer with change.
Referring to Figure 22, another exemplary of Ophthalmoligic instrument for including liquid crystal layer can be observed.Enjoying figure In the homophylic exemplary of exemplary related 13A, liquid crystal layer can form optical effect, wherein In horizontal meaning, the density of the liquid crystal droplet in polymeric layer is what across footpath changed to layer.As shown in figure 22, entry 2210 and bar Mesh 2260 can represent preceding insert and rear insert respectively.It may be present on these parts by 2250 and 2220 layers or layer represented Combination.Layer 2250 and 2220 can represent electrode layer, and the electrode layer can also have dielectric layer and/or aligned layer thereon.Including The layer 2240 of lcd segment can be between these layers.Layer 2240 can be handled so that can will include main liquid crystal molecule Droplet is inserted into polymeric material region, for example, at 2230.Figure 22 flat orientation that diagrammatically show each layer.This figure Show being given for example only property purpose, and the optical element (for example, can be located in the Ophthalmoligic instrument of such as haptic lens etc) bent This structural order can be enjoyed, the difference is that the shape without diagram.In some example embodiments, such as droplet is special Sign 2230 is nano level embodiment, it may be unnecessary to the aligned layer in structure.In these features, molecule in void layer Random orientation can be desirable.
By controlling polymerization to handle, space control can be achieved so that in the specific location containing liquid crystal layer 2240, in the past The density or amount of the liquid crystal material different from another position may be present to rear curved surface region for curve inserts.Across lens surface These changes of liquid crystal material amount can be used for program control overall index so that will be observed at specific region through Ophthalmoligic instrument Light.It can cause to produce following optical effect, for example, spherical focusing optical effect and higher-order optical effect.Such as foregoing reality Scheme is applied, the electric field that cross-layer 2240 is established can cause the change that lcd segment aligns, and this can cause to establish eye in a manner of electroactive The optical effect of the change of section's device.
Referring to Figure 22 A and Figure 22 B, single liquid crystal droplet 2231 is shown to show various possible orientations aspects. In some exemplaries, especially in the case where droplet has nano-grade size, the non-through electrical orientation at Figure 22 A can The droplet of random orientation pattern (as shown in the figure) is shown with wherein liquid crystal molecule.In other exemplaries, make Following non-through electrical orientation configuration can be produced with aligned layer, wherein for example molecule can be aligned to parallel to surface, if Figure 22 B are 2232 Shown in.In either of these cases, when applying electric field 2290, liquid crystal molecule can with field parallel, such as Figure 22 C Shown in 2233.
Include the bifocal ophthalmic device of single polarization sensitivity liquid crystal layer with active and passive aspect.
Reference picture 23, it can be found to use using a type of device of some in the various exemplaries In the bifocal ophthalmic device for including single polarization sensitivity liquid crystal layer.The ophthalmic lens of type described in Fig. 4 can have include liquid crystal The insert 2330 of layer.The various types of layers described can be alignd by aligned layer, and therefore can be for specific inclined Polarization state has sensitiveness.If described device is with focus adjustment functions and with single alignment liquid crystal layer, or alternatively, Described device is alignd for one of liquid crystal layer relative to another liquid crystal layer along orthogonal direction and a liquid crystal layer phase The bilayer device of varying level is energized to for another liquid crystal layer, then the light 2310 incided on ophthalmic lens 400 can be directed to Each polarization direction and resolve into two kinds of different focus characteristics.As illustrated, a polarized component 2351 can be along path 2350 focus on focus 2352, and another polarized component 2341 can focus on focus 2342 along path 2340.
In latest model Ophthalmoligic instrument, a kind of bifocus device be present, institute's focus installations are simultaneously by a variety of focused views As providing the eyes to user.The brain of people has the ability differentiated two images and see different images.At 2300 Device there is the improved ability for delivering such bifocus ability.Not intercept the region of whole image and by them with not It is focused with mode, light 2320 can be divided into two polarized components across whole visible window in the liquid crystal layer of type shown in 2300 2351 and 2341.As long as ambient light 2320 should look similar to only have any focusing without polarization priority, then image The situation of characteristic.In other exemplaries, such Ophthalmoligic instrument can be matched with light source so that it shows amplification Image, the light source projected to realize different effects using the polarization of restriction, for example, display is with selected polarization Information.Liquid crystal display can inherently provide such environmental condition, because the polarization characteristic that can limit of light is from this class display Project.It may be present following multiple exemplaries, the embodiment may originate from balancing using multifocal dot characteristics described The ability of device.
In other exemplaries, actively controlling the ability of the focus of described device can allow described device to have There are a series of bifocal dotted states.Quiescent condition or non-power status may include bifocus, one of polarization for defocus and Another polarization focuses on middle apart from upper.In other embodiments, during activation, middle distance component can be focused on further closely Away from imaging or a series of focal lengths.Bifocal nature user can be allowed to perceive and meanwhile have regardless of how close focusedimage away from From environment, this can have a variety of advantages.Wherein liquid crystal layer can along polarization dimension orientation liquid crystal embodiment in any one can Including the embodiment available for the bifocal design for forming the embodiment type.
In this manual, element shown in the drawings has been with reference to.For ease of understanding, it is for reference to depict many elements To describe the exemplary in field of the present invention.The relative scale of practical structures can be with ratio as depicted significantly not Together, and from shown proportional amount of modification it shall be assumed that in the spirit of this area.For example, liquid crystal molecule can be to be difficult to imagine Small ratio is described with the ratio for insert.Structure according to the ratio similar with insert to expression liquid crystal molecule Described with allow to represent the factor of such as molecular alignments therefore by description ratio such example, the example causes The relative scale being very different is can be assumed that in actual embodiment.
Although shown or described is believed to be the most practical and preferred embodiment, but it will be apparent that ability The technical staff in domain can make change to described and shown specific design and method, and can not depart from the present invention's Changed form in the case of spirit and scope using these.The invention is not limited in described and shown specific configuration, But it should be understood to be consistent with the whole modifications fallen within the scope of the appended claims.

Claims (34)

1. a kind of energized ophthalmic lens device, including：
Variable optical insert, the variable optical insert include optics area at least a portion and including insert before Curved-surface piece and insert rear curved surface part, wherein the rear surface of the front curve part and the preceding surface of the rear curved surface part are at least in institute Stating in the part in optics area has different surfaces topology, and the variable optical insert also includes non-optical zones；
Energy source, the energy source are embedded in the variable optical insert in the region including at least the non-optical zones In；And
Liquid crystal material layer, the liquid crystal material layer and the variable optical insert are operatively associated.
2. energized ophthalmic lens device according to claim 1, wherein the ophthalmic lens device includes haptic lens.
3. energized ophthalmic lens device according to claim 2, in addition to：
The first electrode material layer on the rear surface of the neighbouring front curve part；And
The second electrode material layer on the preceding surface of the neighbouring rear curved surface part.
4. energized ophthalmic lens device according to claim 3, in addition to the first electricity of the neighbouring liquid crystal material layer are situated between The material bed of material, wherein the thickness of first dielectric material layer changes across the region in the optics area, so as to when across institute When stating first electrode material layer and second electrode material layer application potential, the electricity across the change of the liquid crystal material layer is produced .
5. energized ophthalmic lens device according to claim 3, wherein when across the first electrode material layer and described When two electrode material layers apply potential, the liquid crystal material layer changes its refractive index, so as to influence through the liquid crystal material layer Light ray.
6. energized ophthalmic lens device according to claim 5, wherein the variable optical insert changes the eyeglass Focus characteristics.
7. energized ophthalmic lens device according to claim 6, in addition to processor.
8. a kind of energized ophthalmic lens device, including：
Variable optical insert, the variable optical insert include at least a portion in the optics area and including insertions Thing front curve part, median curved surface part and insert rear curved surface part, wherein the rear surface of the front curve part and the median curved surface There is different surfaces topology, the variable optical insert is also in the part of the preceding surface of part at least in the optics area Including non-optical zones；
Energy source, the energy source are embedded in the variable optical insert in the region including at least the non-optical zones In；And
At least the first liquid crystal material layer and the second liquid crystal material layer, at least first liquid crystal material layer and the second liquid crystal material layer It is operatively associated with the variable optical insert.
9. energized ophthalmic lens device according to claim 8, wherein the ophthalmic lens device includes haptic lens.
10. energized ophthalmic lens device according to claim 9, in addition to：
The first electrode material layer on the rear surface of the neighbouring front curve part；
The second electrode material layer on the preceding surface of the neighbouring median curved surface part；And
Wherein described first liquid crystal material layer is between the first electrode material layer and the second electrode material layer.
11. energized ophthalmic lens device according to claim 10, include the of neighbouring first liquid crystal material layer One dielectric material layer, wherein the thickness of first dielectric material layer changes across the region in the optics area, so as to When applying potential across the first electrode material layer and the second electrode material layer, the change across the liquid crystal material layer is produced The electric field of change.
12. energized ophthalmic lens device according to claim 10, wherein when across the first electrode material layer and described When second electrode material layer applies potential, first liquid crystal material layer changes its refractive index, so as to influence through described first The light ray of liquid crystal material layer.
13. energized ophthalmic lens device according to claim 10, wherein the variable optical insert changes the mirror The focus characteristics of piece.
14. energized ophthalmic lens device according to claim 8, wherein the median curved surface part has been bonded together The combination of two curved-surface pieces.
15. energized ophthalmic lens device according to claim 10, in addition to circuit, wherein the circuit control electric energy from Flowing of the energy source to the first electrode layer and the second electrode lay.
16. energized ophthalmic lens device according to claim 15, wherein the circuit includes processor.
17. energized ophthalmic lens device according to claim 16, wherein first liquid crystal layer is located at the first aligned layer And second between aligned layer and neighbouring first aligned layer and second aligned layer, wherein first aligned layer and institute The second aligned layer is stated to be co-located between the first electrode material layer and the second electrode material layer, and wherein described One electrode material layer and the second electrode material layer and the circuit telecommunication.
18. energized ophthalmic lens device according to claim 17, in addition to：
3rd aligned layer and the 4th aligned layer, wherein second liquid crystal layer is located at the 3rd aligned layer and the 4th alignment Between layer and adjacent to the 3rd aligned layer and the 4th aligned layer；
3rd electrode material layer and the 4th electrode material layer,
Wherein described second liquid crystal layer, the 3rd aligned layer and the 4th aligned layer are co-located at the 3rd electrode material Between layer；And
Wherein described 3rd electrode material layer and the 4th electrode material layer and the circuit telecommunication.
19. energized ophthalmic lens device according to claim 18, wherein first aligned layer and second alignment Layer makes first liquid crystal layer be alignd mainly along the first linear axis；And the 3rd aligned layer and the 4th aligned layer Second liquid crystal layer is set to be alignd mainly along the second linear axis.
20. energized ophthalmic lens device according to claim 19, wherein the First Line axis is approximately perpendicular to institute State the second linear axis.
21. a kind of energized ophthalmic lens device, including：
Variable optical insert, the variable optical insert include at least a portion in the optics area and including insertions Thing front curve part and insert rear curved surface part, wherein the rear surface of the front curve part and the preceding surface of the rear curved surface part are at least There is different surfaces topology, the variable optical insert also includes non-optical zones in the part in the optics area；
Energy source, the energy source are embedded in the variable optical insert in the region including at least the non-optical zones In；And
Liquid crystal material layer, the liquid crystal material layer and the variable optical insert are operatively associated, wherein the liquid crystal Material includes nano grade polymer dispersed LCD region.
22. a kind of energized ophthalmic lens device, including：
Variable optical insert, the variable optical insert include at least a portion in the optics area and including insertions Thing front curve part and insert rear curved surface part, wherein the rear surface of the front curve part and the preceding surface of the rear curved surface part are at least There is different surfaces topology, the variable optical insert also includes non-optical zones in the part in the optics area；
Energy source, the energy source are embedded in the variable optical insert in the region including at least the non-optical zones In；And
Liquid crystal material layer, the liquid crystal material layer and the variable optical insert are operatively associated, wherein the liquid crystal Material includes PDLC region.
23. a kind of energized ophthalmic lens device, including：
Variable optical insert, the variable optical insert include at least a portion in the optics area and including insertions Thing front curve part and insert rear curved surface part, wherein the rear surface of the front curve part and the preceding surface of the rear curved surface part are at least There is different surfaces topology, the variable optical insert also includes non-optical zones in the part in the optics area；
Energy source, the energy source are embedded in the variable optical insert in the region including at least the non-optical zones In；And
Liquid crystal material layer, the liquid crystal material layer and the variable optical insert are operatively associated, wherein the liquid crystal Material includes the layer with different anchoring strengths.
24. a kind of energized ophthalmic lens device, including：
Variable optical insert, the variable optical insert include at least a portion in the optics area and including insertions Thing front curve part and insert rear curved surface part, wherein the rear surface of the front curve part and the preceding surface of the rear curved surface part are at least There is different surfaces topology, the variable optical insert also includes non-optical zones in the part in the optics area；
Energy source, the energy source are embedded in the variable optical insert in the region including at least the non-optical zones In；And
The variable optical insert include with the variable optical insert operatively associated liquid crystal material layer, wherein The liquid crystal material is orientated by the aligned layer of tissue, the group of aligned layer described in the polarization photocontrol wherein in limiting pattern Knit.
25. a kind of energized ophthalmic lens device, including：
Variable optical insert, the variable optical insert include at least a portion in the optics area and including insertions Thing front curve part and insert rear curved surface part, wherein the rear surface of the front curve part and the preceding surface of the rear curved surface part are at least There is different surfaces topology, the variable optical insert also includes non-optical zones in the part in the optics area；
Energy source, the energy source are embedded in the variable optical insert in the region including at least the non-optical zones In；And
Liquid crystal material layer, the liquid crystal material layer and the variable optical insert are operatively associated, wherein the liquid crystal Material is orientated by the aligned layer of tissue, and the liquid crystal material is aligned into gradient index orientation, the gradient index Orientation is interacted with incident light to provide Parabolic Phase delay and the relation of radius.
26. a kind of energized ophthalmic lens device, including：
Variable optical insert, the variable optical insert include at least a portion in the optics area and including insertions Thing front curve part and insert rear curved surface part, wherein the rear surface of the front curve part and the preceding surface of the rear curved surface part are at least There is different surfaces topology, the variable optical insert also includes non-optical zones in the part in the optics area；
Energy source, the energy source are embedded in the variable optical insert in the region including at least the non-optical zones In；And
Liquid crystal material layer, the liquid crystal material layer and the variable optical insert are operatively associated, wherein the liquid crystal Material includes the liquid crystal layer of cycloid wave plate patterning.
27. a kind of energized ophthalmic lens device, including：
Variable optical insert, the variable optical insert include at least a portion in the optics area and including insertions Thing front curve part and insert rear curved surface part, wherein the rear surface of the front curve part and the preceding surface of the rear curved surface part are at least There is different surfaces topology, the variable optical insert also includes non-optical zones in the part in the optics area；
Energy source, the energy source are embedded in the variable optical insert in the region including at least the non-optical zones In；With
Liquid crystal material layer, the liquid crystal material layer and the variable optical insert are operatively associated, wherein the liquid crystal Material includes the forming electrolyte layer with polymer dispersed liquid crystal layer.
28. a kind of energized ophthalmic lens device, including：
Variable optical insert, the variable optical insert include at least a portion in the optics area and including insertions Thing front curve part and insert rear curved surface part, wherein the rear surface of the front curve part and the preceding surface of the rear curved surface part are at least There is different surfaces topology, the variable optical insert also includes non-optical zones in the part in the optics area；
Energy source, the energy source are embedded in the variable optical insert in the region including at least the non-optical zones In；And
Liquid crystal material layer, the liquid crystal material layer and the variable optical insert are operatively associated, wherein the layer bag The polymer dispersed liquid crystal layer with different liquid crystal density is included, the polymer dispersed liquid crystal layer includes in the polymeric layer Space.
29. a kind of energized ophthalmic lens device, including：
Variable optical insert, the variable optical insert include at least a portion in the optics area and including insertions Thing front curve part and insert rear curved surface part, wherein the rear surface of the front curve part and the preceding surface of the rear curved surface part are at least There is different surfaces topology, the variable optical insert also includes non-optical zones in the part in the optics area；
Energy source, the energy source are embedded in the variable optical insert in the region including at least the non-optical zones In；And
Liquid crystal material layer, the liquid crystal material layer and the variable optical insert are operatively associated, wherein the layer bag The polymer dispersed liquid crystal layer with different liquid crystal density is included, the polymer dispersed liquid crystal layer includes in the polymeric layer Space.
30. a kind of energized ophthalmic lens device, including：
Variable optical insert, the variable optical insert include at least a portion in the optics area and including insertions Thing front curve part and insert rear curved surface part, wherein the rear surface of the front curve part and the preceding surface of the rear curved surface part are at least There is different surfaces topology, the variable optical insert also includes non-optical zones in the part in the optics area；
Energy source, the energy source are embedded in the variable optical insert in the region including at least the non-optical zones In；
Single alignment liquid crystal material layer, the single alignment liquid crystal material layer and the variable optical insert are operationally related Connection, wherein the first polarization orientation of the single alignment liquid crystal material layer and incident light and not the second polarization orientation with incident light Consumingly interact, wherein the first polarization orientation of the incident light is orthogonal with the second polarization orientation of the incident light；And It is described and wherein described simple layer and the difference of the first polarization orientation of the incident light interact to form the first focus characteristics First focus characteristics are different from determined by the interaction of the simple layer and the second polarization orientation of the incident light the Two focus characteristics.
31. a kind of method for forming Ophthalmoligic instrument, methods described include：
Ophthalmology insert is formed, wherein the insert takes molded non-planar；
The surface region of the ophthalmology insert is coated with alignment material；
Make the molecularly oriented by using the molecule of the electromagnetic radiation irradiation alignment material.
32. according to the method for claim 31, wherein the alignment material includes one kind or more in azobenzene compound Kind.
33. according to the method for claim 31, wherein the orientation is held by controlling the polarization of the irradiation light OK.
34. according to the method for claim 32, wherein the one or more in the azobenzene compound be oriented to it is suitable Any of formula configuration or anti-configuration.
CN201710770588.2A 2016-08-24 2017-08-24 Variable optical Ophthalmoligic instrument including liquid crystal cell Pending CN107783313A (en)

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