CN110133869B - Light-adjusting lens, preparation method thereof and light-adjusting glasses - Google Patents
Light-adjusting lens, preparation method thereof and light-adjusting glasses Download PDFInfo
- Publication number
- CN110133869B CN110133869B CN201910468166.9A CN201910468166A CN110133869B CN 110133869 B CN110133869 B CN 110133869B CN 201910468166 A CN201910468166 A CN 201910468166A CN 110133869 B CN110133869 B CN 110133869B
- Authority
- CN
- China
- Prior art keywords
- light
- dimming
- lens
- base material
- functional 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.)
- Active
Links
- 239000011521 glass Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000002346 layers by function Substances 0.000 claims abstract description 82
- 239000010410 layer Substances 0.000 claims abstract description 65
- 239000000463 material Substances 0.000 claims abstract description 59
- 230000031700 light absorption Effects 0.000 claims abstract description 54
- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000000758 substrate Substances 0.000 claims description 56
- 239000004973 liquid crystal related substance Substances 0.000 claims description 22
- 239000000853 adhesive Substances 0.000 claims description 20
- 230000001070 adhesive effect Effects 0.000 claims description 20
- 230000003287 optical effect Effects 0.000 claims description 19
- 239000011358 absorbing material Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 238000010146 3D printing Methods 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 201000009487 Amblyopia Diseases 0.000 abstract description 17
- 238000011282 treatment Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 13
- 238000002834 transmittance Methods 0.000 abstract description 10
- 230000009471 action Effects 0.000 abstract description 3
- 230000005684 electric field Effects 0.000 abstract description 3
- 238000001723 curing Methods 0.000 description 8
- 230000000007 visual effect Effects 0.000 description 6
- 230000004438 eyesight Effects 0.000 description 5
- 230000036541 health Effects 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 230000000638 stimulation Effects 0.000 description 4
- 239000005264 High molar mass liquid crystal Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 208000003464 asthenopia Diseases 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 description 1
- 206010013954 Dysphoria Diseases 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 208000030533 eye disease Diseases 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- G02C7/10—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
- 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
- G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection
-
- 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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
- G02C2202/24—Myopia progression prevention
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Ophthalmology & Optometry (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- General Health & Medical Sciences (AREA)
- Dispersion Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Liquid Crystal (AREA)
- Eyeglasses (AREA)
Abstract
The invention provides a light-adjusting lens, a preparation method thereof and light-adjusting glasses, which are used for treating amblyopia. The dimming lens comprises a dimming functional layer and a light absorption functional layer which are arranged in a stacked mode, wherein the dimming functional layer comprises a polymer dispersed liquid crystal layer, and a transparent state and a non-transparent state can be realized under the action of an electric field; the light absorption function layer comprises a light absorption part and a light transmission part, and the light absorption part contains a light absorption material and can absorb incident light. The lens is used for shielding healthy eyes, can reduce the light transmittance to be less than 3%, and can play the roles of protecting the bad eyes and exercising the bad eyes when being used for the bad eyes. Compared with the traditional amblyopia treatment tool, the treatment glasses prepared by the lens have good treatment effect and good patient compliance.
Description
Technical Field
The invention relates to the technical field of optics, in particular to a dimming lens and a preparation method thereof, and further relates to dimming glasses and dimming glasses comprising the dimming lens.
Background
Amblyopia is a serious eye disease, and for amblyopia patients with inconsistent amblyopia degrees of two eyes, covering is a preferred method for treating amblyopia, and plays an absolute role in treating the amblyopia.
The most common covering method at present is to cover healthy eyes (with better vision) and only give enough vision introduction to poor eyes (with worse vision) to force the poor eyes to watch, so that the poor eyes are stimulated in a short time to develop to the same vision as the healthy eyes.
The covering method adopts an eye mask for covering, the comfort level and the aesthetic degree are low, the compliance of patients is poor, data show that 15 percent of children patients can resist the mode, and the treatment effect is not ideal.
Disclosure of Invention
The invention aims to provide a dimming lens, a preparation method thereof and dimming glasses, which are used for amblyopia treatment and solve the problem of poor compliance of patients in the existing amblyopia treatment mode.
According to a first aspect of the invention, there is provided a dimming lens comprising:
the dimming functional layer comprises a first base material and a second base material which are arranged oppositely, and a polymer dispersed liquid crystal layer positioned between the first base material and the second base material, wherein the first base material and the second base material are both transparent sheet materials, and conductive layers are arranged on the sides, close to the polymer dispersed liquid crystal layer, of the first base material and the second base material;
and the light absorption functional layer is arranged on any side of the dimming functional layer in a stacked mode and comprises a light absorption part and a light transmission part, and a light absorption material is contained in the light absorption part.
In an exemplary embodiment of the invention, the third substrate is a transparent sheet material and is disposed opposite to the first substrate or the second substrate; the light absorbing part and the light transmitting part are both in a plurality of numbers, and the light absorbing part and the light transmitting part are both in a strip shape; each of the light absorbing portions and each of the light transmitting portions are alternately arranged between the first base material and the third base material, or between the second base material and the third base material.
In an exemplary embodiment of the invention, a cross-sectional shape of the light absorbing part along the direction perpendicular to the strip direction is a hexagon.
In one exemplary embodiment of the present invention, the light absorbing material includes carbon black particles, and the light absorbing part further includes a binder, and the light absorbing material is bound by the binder.
In an exemplary embodiment of the present invention, the light-transmitting portion includes a transparent filler, and the transparent filler is an optical glue.
According to a second aspect of the present invention, there is provided a pair of dimming glasses comprising:
a frame comprising a lens mounting area;
the dimming lens is arranged in the lens mounting area, and a light absorption function layer of the dimming lens is positioned on one side far away from eyes;
the lens driving device is arranged in the spectacle frame, is electrically connected with the dimming function layer of the dimming lens and is used for controlling the liquid crystal deflection direction and the deflection angle of the dimming function layer;
the switch is arranged on the spectacle frame, is electrically connected with the lens driving device and is used for controlling the opening and closing of the lens driving device.
In an exemplary embodiment of the present invention, the lens driving device includes:
a power supply for providing a direct current;
the direct current-alternating current converter is connected with the power supply and is used for converting direct current of the power supply into alternating current;
a driving circuit for applying the alternating current to the dimming function layer.
According to a third aspect of the present invention, there is provided a method for preparing a dimming lens, comprising:
providing a first substrate and a second substrate which are transparent and flaky, preparing a conductive layer on one surface of the first substrate and one surface of the second substrate, and preparing a polymer dispersed liquid crystal layer between the two conductive layers to form a dimming functional layer;
preparing a light absorbing part and a light transmitting part, forming a light absorbing functional layer, and laminating the light absorbing functional layer on any side of the dimming functional layer; wherein the light absorbing part contains a light absorbing material therein.
In one exemplary embodiment of the present invention, preparing the light absorbing part and the light transmitting part on either side of the dimming function layer includes:
preparing a plurality of strip-shaped light absorption parts;
providing a third substrate which is transparent and is in a sheet shape, and arranging a plurality of strip-shaped light absorption parts on the third substrate or the light modulation functional layer at intervals;
and adhering the dimming function layer and the third base material by using transparent optical cement, filling the transparent optical cement in the intervals between the light absorption parts, wherein the interval between two adjacent light absorption parts is the light transmission part.
In an exemplary embodiment of the present invention, the preparing the plurality of light absorbing portions in a stripe shape includes:
adding the light absorption material into the adhesive, and then forming a strip-shaped light absorption part by injection molding;
or, the light absorbing material is added into the adhesive, and then a strip-shaped light absorbing part is formed by adopting a 3D printing technology.
The dimming lens comprises a dimming functional layer and a light absorption functional layer which are arranged in a stacked mode, the dimming functional layer realizes the change of a bright state and a dark state by utilizing liquid crystal deflection, and a light absorption part of the light absorption functional layer can absorb part of incident light. The lens is suitable for amblyopia treatment, the healthy eye can be shielded by utilizing the dark state characteristic of the dimming functional layer, visual stimulation is given to the bad eye by utilizing the bright state characteristic of the dimming functional layer, meanwhile, the light absorption functional layer can further receive part of incident light and is matched with the dimming functional layer, the transmittance of the light entering human eyes can be reduced to be less than 3%, and the lens has a better shielding effect on the healthy eye; in addition, the light absorption function layer can reduce the incident amount of light rays entering poor eyes, reduce the stimulation of strong light to the poor eyes, and after the light rays entering the poor eyes are weakened by a proper amount, the poor eyes can see objects clearly more easily by careful observation, and the purpose of exercising the poor eyes can be achieved. Therefore, the lens has good treatment effect on amblyopia. And the glasses made of the glasses are similar to sunglasses in appearance, the comfort level and the attractiveness are superior to those of eyepatches, the compliance of patients is good, and the glasses are also beneficial to treatment of amblyopia.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic cross-sectional view of a light-adjusting lens according to the present invention;
FIG. 2 is a schematic diagram of a dark state of the dimming function layer;
FIG. 3 is a diagram illustrating a bright state of a dimming functional layer;
FIG. 4 is a schematic view of a light absorbing functional layer structure and a light path;
FIG. 5 is a schematic view of a light-adjusting glasses according to the present invention;
FIG. 6 is a schematic view showing a coupling structure of the lens and the lens driving device;
FIG. 7 is a flow chart of a method of making a lens of the present invention.
In the figure: 1. a lens; 2. a frame; 3. a lens driving device; 4. a switch; 5. a flexible circuit board; 6. an electrode; 10. a dimming function layer; 20. a light absorbing functional layer; 110. a first substrate; 120. a second substrate; 130. a polymer dispersed liquid crystal layer; 140. a conductive layer; 210. a light absorbing portion; 220. a light-transmitting portion; 230. and a third substrate.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
The embodiment of the invention provides a dimming lens which is suitable for preparing glasses for treating amblyopia. As shown in fig. 1, the dimming lens includes a dimming functional layer 10 and a light absorption functional layer 20 which are stacked. The dimming functional layer 10 includes a first substrate 110 and a second substrate 120 that are disposed opposite to each other, and a polymer dispersed liquid crystal layer 130 located between the first substrate 110 and the second substrate 120, where the first substrate 110 and the second substrate 120 are both transparent sheet materials, one sides of the first substrate 110 and the second substrate 120 close to the polymer dispersed liquid crystal layer 130 are both provided with a conductive layer 140, and the polymer dispersed liquid crystal layer 130 is configured to change a liquid crystal deflection direction in response to a voltage of the conductive layer 140, so as to change a light transmittance of the dimming functional layer 10. The light absorption functional layer 20 is disposed on either side of the dimming functional layer 10 and includes a light absorption portion 210 and a light transmission portion 220, and the light absorption portion 210 includes a light absorption material for absorbing incident light.
The dimming function layer 10 of the dimming lens can realize the change of a bright state (transparent state) and a dark state (opaque state) by utilizing the deflection of liquid crystal under an electric field. Specifically, when a voltage is applied to the liquid crystal layer, the optical axis orientation of the liquid crystal droplets is adjusted to be consistent with that of the incident light, and the light can pass through the dimming functional layer 10 to be in a transparent state. When no voltage is applied to the liquid crystal layer, the optical axes of the liquid crystal droplets are in a free orientation, and the incident light is strongly scattered, so that the dimming function layer 10 is in an opaque milky white state. For the amblyopia patient, the dark state characteristic of the dimming functional layer 10 can be used for shielding healthy eyes, and the bright state characteristic of the dimming functional layer 10 is used for giving visual stimulation to poor eyes, so that the amblyopia treatment is realized.
For eye health, the dimming function layer 10 is not completely blackened (more in a foggy state) in a dark state, the light transmittance is generally between 5% and 10%, complete shielding of light cannot be realized, and eye health and asthenopia and even dysphoria of patients cannot be treated in a matching manner if eye health cannot be completely shielded in treatment of amblyopia. The light absorption functional layer 20 absorbs part of incident light by using the light absorption material contained therein, and in cooperation with the light modulation functional layer 10, the transmittance of light entering human eyes is further reduced to less than 3%, so that an ideal shielding effect is realized.
For poor eyes, on one hand, in a high-brightness environment, when the dimming functional layer 10 is completely transparent, part of incident light can be absorbed by the light absorption functional layer 20, so that the incident amount of light is reduced, the stimulation of strong light to poor eyes is reduced, and the light absorption functional layer is suitable for being used in strong light, such as in a strong sunlight environment. On the other hand, after the light is weakened by a proper amount, the poor eyes can be observed clearly by careful observation, and the purpose of exercising the poor eyes can be achieved.
The following describes the dimming lens according to the embodiment of the present invention in detail:
the first substrate 110 and the second substrate 120 may be made of inflexible glass, a flexible transparent PET substrate (polyethylene terephthalate) or a PC (Polycarbonate) substrate, have a thickness of about 100 to 200 μmm, and may have a surface that is hardened or uv-protected. The conductive layer 140 may be a full-surface transparent metal oxide (e.g., Indium Tin Oxide (ITO)) or a polymer flexible transparent conductive film (PCF) with a thickness of about 10 μm.
The polymer dispersed liquid crystal layer 130 has a polymer network (forming a honeycomb structure), a bistable cholesteric liquid crystal and glass beads or PMMA spacers (acting as an added support) inside, a thickness of about 5-15 μm, random optical axis orientation of liquid crystal droplets, refractive index anisotropy of liquid crystal, and an ordinary refractive index n of liquid crystal dropletsoRefractive index n with polymerpMismatch, the droplet has a scattering effect on the light. When a certain AC driving voltage is applied to the conductive layers 140 on both sides of the polymer dispersed liquid crystal layer 130, the director of the droplet particles is aligned with the direction of the electric field, and the ordinary refractive index n of the liquid crystal droplets isoRefractive index n with polymerpAnd the film material is in a transparent state, and the mechanism is shown in figures 2 and 3. The voltage used is an alternating current, and the driving voltage is generally about 10v depending on the size of the area used and the resistance of the circuit terminals. Therefore, by adjusting the ratio of the liquid crystal to the polymer, strong scattering of light and external light can be realizedIt was not penetrated, and the polymer dispersed liquid crystal film showed milky white color. The mixture ratio and material can be adjusted according to the requirement, and the wavelength of the reflected light can be adjusted, so that the polymer dispersed liquid crystal film can show other colors. In this mode, the effect of adjusting the transmittance to some extent can be achieved.
Referring to fig. 1, in this embodiment, the light absorbing functional layer 20 further includes a third base material 230, where the third base material 230 is a transparent sheet material and is located on a side of the second base material 120 away from the first base material 110, and is opposite to the second base material 120. The third substrate 230 functions as the first substrate 110 and the second substrate 120, and is used to support and fix the corresponding functional layers, and therefore, the same material may be used. The light absorbing part 210 and the light transmitting part 220 are both provided in a plurality of numbers, and the light absorbing part 210 and the light transmitting part 220 are both in the shape of a strip extending in a first direction; the light absorbing portions 210 and the light transmitting portions 220 are alternately arranged between the second substrate 120 and the third substrate 230 along a second direction, and the first direction is perpendicular to the second direction. Adopt bar-type structure can enough play the effect of sheltering from light, can shelter from large visual angle light simultaneously, make the patient look dead ahead more, also convenient processing can be through injection moulding or 3D printing technique shaping.
In the present embodiment, as shown in fig. 4, the light absorbing portion 210 has a regular hexagonal shape in cross section in the second direction, that is, a regular hexagonal prism structure as a whole. The normal-view light rays L1 and L2 are absorbed by the light-absorbing particles and thus weakened, and the normal-view light ray L3 can normally penetrate the light-absorbing functional layer 20. Specifically, taking the illustrated cross section as an example, the through intensity of the normal-view ray is calculated as the ratio of the light intensity penetrating the hexagon to the incident light intensity. The total normal viewing angle light ray penetration intensity between E, F points can be divided equally linearly, specifically, T ═ F (L) d (EF), the integral lower limit is 0, the upper limit is 1, F (L) is the light ray intensity at different positions, L is the horizontal distance between the bottom surfaces of two adjacent hexagons, θ is the hexagon angle, H is the hexagon height, and EF ═ H/2sin θ. It can be seen that the penetration intensity of the light rays at the normal viewing angle between the two points E, F is determined by the hexagon angle θ, the height H and the bottom surface spacing L, and the specific proportion can be determined according to the treatment requirement. In the cross section, the widths of the light absorbing part 210 and the light transmitting part 220 are about 10-20 μm, so that the light entering human eyes after passing through the light absorbing functional layer 20 and the dimming functional layer 10 is less than 3%, and a complete dark state can be realized.
Meanwhile, the hexagonal prism structure can filter out light rays with large viewing angles, as shown in fig. 4, and the light rays with large viewing angles L4 are absorbed by the light absorbing particles. The amount of light that can be filtered out can be determined by the hexagonal height H and the base spacing L, tan θ1＝2H/L，θ1Is the angle of L4 from the horizontal. The light at large visual angle has no obvious influence on the treatment effect, and the light at the positive visual angle is only reserved for the patient after being filtered, so that the poor eyes of the patient can concentrate on the image at the positive visual angle, and the exercise effect is improved. In other embodiments, the section of the light absorbing part 210 along the second direction may have other shapes, such as a rectangle, a triangle, a circle, etc., which are not listed here.
In this embodiment, the light absorbing material in the light absorbing portion 210 may be black particles such as carbon black, which can absorb more light, so as to help to achieve the purpose of covering and strengthening eyes comprehensively, and the black particles make the whole lens 1 show a certain black color, the appearance is similar to sunglasses, the beauty is higher, and the lens is more easily accepted by patients. Of course, the light absorbing material can be other colors, and the appearance is more diversified on the premise of fully shielding healthy eyes. Each light absorbing portion 210 further includes an adhesive by which the light absorbing material is adhered. The adhesive may specifically be an optical adhesive, for example, an ultraviolet curable optical adhesive. The ultraviolet curing optical cement is a transparent material, does not interfere with the light absorption characteristic of the light absorption functional layer 20, is convenient to prepare, and can be prepared by only dispersing carbon black particles in liquid ultraviolet cement and curing by using ultraviolet light. The light transmittance is affected by the amount of light absorbing material, and thus the amount of light absorbing material can be adjusted according to the treatment need.
The light-transmitting portion 220 includes a transparent filler, i.e., the spaces between the plurality of light-absorbing portions 210 are filled with the transparent filler. The incident light is partially absorbed by the light absorbing material in the light absorbing part 210, and partially penetrates through the transparent filler of the light transmitting part 220. The transparent filler may also be an optical adhesive, for example, an ultraviolet curing optical adhesive, which can not only completely transmit light, but also play a role in fixing and bonding each light absorbing part 210, and prevent each light absorbing part 210 from moving.
In this embodiment, the light absorption functional layer 20 is formed between the second substrate 120 and the third substrate 230, and in other embodiments, the light absorption functional layer 20 may be formed between the first substrate 110 and the third substrate 230. In addition, the light-adjusting functional layer 10 and the light-absorbing functional layer 20 of the present embodiment share one base material, and the thickness of the entire lens can be reduced. In other embodiments, the light-adjusting functional layer 10 and the light-absorbing functional layer 20 may have two substrates, and then the two functional layers may be bonded to form a whole.
The embodiment of the invention also provides dimming glasses, as shown in fig. 5, which comprise a frame 2, lenses 1, a lens driving device 3 and a switch 4.
The spectacle frame 2 comprises a lens mounting area, the spectacle frame 2 at least comprises a spectacle leg, and the spectacle frame can also comprise a lens frame which is made into a framed spectacle frame 2 (a half frame or a full frame), or can not comprise the lens frame and be made into a frameless spectacle frame 2, and the specific mounting form of the lens 1 is not limited.
The lens 1 is a dimming lens in the above embodiment, and is attached to a lens attachment area of the frame 2. The eye health and poor eyes can adopt dimming lenses with completely consistent materials, structures and performances, and also can adopt dimming lenses with different materials and structures according to the vision conditions. For example, the light absorbing material content in the light absorbing functional layer 20 of the light adjusting lens for eye health can be more or the distance between the light absorbing parts 210 can be smaller, so that the shielding effect is better, while the light absorbing material content in the light absorbing functional layer 20 of the light adjusting lens for eye poor can be less or the distance between the light absorbing parts 210 is larger, so as to avoid that too little light enters human eyes, which causes the poor eyes to be too "hard" to see clearly and causes eye fatigue. Since the light rays incident to the human eye are incident light rays after the combined action of the light modulation functional layer 10 and the light absorption functional layer 20, the filtering of the light rays before and after the positions of the light modulation functional layer 10 and the light absorption functional layer 20 are consistent. Since the light-absorbing functional layer 20 has a black-white effect due to the characteristic of the light-adjusting functional layer 10 in a dark state, the light-absorbing functional layer 20 may be located on the side away from the eyes for appearance.
The switch 4 is arranged on the spectacle frame 2 and is electrically connected with the lens driving device 3 for turning on and off the lens driving device 3 so as to control the dimming effect of the spectacles. Meanwhile, in order to make the two lenses 1 present different states, the two lenses 1 may be individually provided with their respective lens driving devices 3 and switches 4, so that they can be independently controlled. For example, when the setting switch 4 is turned off, the dimming function layer 10 displays a dark state, and when the setting switch 4 is turned on, the dimming function layer 10 displays a bright state, and during treatment, the eye-care switch 4 can be turned off to shield the eye-care lenses 1 from the eyes, and simultaneously, the eye-difference switch 4 is turned on to enable most of the light to penetrate through the eye-difference lenses 1. Meanwhile, the lens driving device can be controlled by a switch 4 (such as a knob switch) to realize the adjustable transmittance of the lens.
The lens driving device 3 is disposed in the frame 2 (for example, a temple), electrically connected to the dimming function layer 10 of the dimming lens 1, and configured to control a light transmittance of the dimming function layer 10, thereby adjusting the light transmittance of the lens 1. The lens driving means 3 are mounted in the temples to ensure a better appearance of the glasses. As shown in fig. 6, in order to realize the electrical connection between the lens driving device 3 and the dimming function layer 10, the conductive positive and negative electrodes 6 are welded to the edge of the dimming function layer 10, the conductive positive and negative electrodes 6 are electrically connected to the flexible circuit board 5 provided with each function circuit, and the flexible circuit board 5 is further connected to the driving device 3 and the switch 4.
In the present embodiment, the lens driving device 3 includes a power supply, a dc/ac converter, and a driving circuit. The power supply may be a micro battery, the micro battery provides more direct current, the dc/ac converter is connected to the power supply and can convert the direct current into alternating current, and the driving circuit is configured to apply the alternating current to the dimming function layer 10. The lens driving device 3 may further include a voltage adjusting circuit, the voltage adjusting circuit is connected to the dc/ac converter and is configured to convert the voltage of the ac power into an ac voltage (typically, an ac power of about 10v or about 10mA is required when the polymer dispersed liquid crystal layer 130 is driven) meeting the requirement of the lens 1, and the voltage adjusting circuit is further connected to a driving circuit, and the driving circuit applies the ac power after the voltage adjustment to the dimming functional layer 10 of the dimming lens 1. Further, because of the difference of different patients' amblyopia degree, the size of liquid crystal deflection angle is adjusted to accessible adjustment voltage size, and then the transmissivity of control lens, and the voltage size is adjusted through voltage regulating circuit to the voltage waveform of adjustment drive circuit output is the rectangular wave, can make the lens be in the adjustable state of transmissivity.
The embodiment of the invention also provides a preparation method of the dimming lens, and with reference to fig. 7, the preparation method specifically comprises the following steps:
step S100, providing a first substrate 110 and a second substrate 120, preparing a conductive layer 140 on one side of the first substrate 110 and one side of the second substrate 120, and preparing a polymer dispersed liquid crystal layer 130 between the two conductive layers 140 to form the dimming function layer 10.
Step S200, preparing a light absorbing part 210 and a light transmitting part 220, forming a light absorbing functional layer 20, and disposing the light absorbing functional layer 20 on any side of the dimming functional layer 10; the light absorbing part 210 contains a light absorbing material therein.
In step S100 of the present embodiment, the dimming function layer 10 may be specifically prepared by the following processes:
step S110, coating: the opposite surfaces of the first substrate 110 and the second substrate 120 are respectively treated with the conductive layer 140, and further surface treatments, such as antistatic treatment, scratch resistance, glare resistance, etc., can be performed on the surfaces of the substrates to meet different use requirements.
Step S120, liquid crystal dropping: firstly, mixing and stirring liquid crystal and high molecular polymer (such as polyurethane acrylate resin and the like) (the mass ratio is generally 5:5), doping partial glass beads, and forming transparent homogeneous system polymer liquid crystal under a certain temperature condition. Then, a polymer liquid crystal is dropped on one of the substrates, and then the other substrate is overlaid on the polymer liquid crystal, and both substrates are press-molded by a rolling method. During extrusion, the gap between the first substrate 110 and the second substrate 120 is controlled by the two tube wheels to reach a preset distance.
Step S130, curing the liquid crystal: the ultraviolet light irradiates the liquid crystal for a certain time, the high molecular polymer forms a honeycomb structure, liquid crystal molecules are wrapped in the structure, and the liquid crystal is completely cured at a certain high temperature (generally over 100 ℃), so that the dimming functional layer 10 is formed.
In step S200 of the present embodiment, the light absorption function layer 20 may be prepared by the following processes:
in step S210, a plurality of strip-shaped light absorbing portions 210 are prepared. Specifically, the light absorbing material may be added to the adhesive and then prepared into a plurality of stripe shapes. The adhesive can be ultraviolet curing optical adhesive, and can be formed into a strip structure by adding a light absorption material into the ultraviolet adhesive, uniformly mixing and then performing injection molding. Or adding a light absorption material into the ultraviolet glue, uniformly mixing, and then performing 3D printing molding, for example, layering a model structure by adopting a three-dimensional photocuring molding technology, scanning the ultraviolet glue layer by using ultraviolet laser, and curing the ultraviolet glue layer by layer under the action of the ultraviolet laser to form a three-dimensional strip-shaped structure.
Step S220, providing a third substrate, and arranging a plurality of light absorbing portions 210 formed with light absorbing material on the third substrate at intervals along a second direction perpendicular to the first direction, with the strip direction as the first direction.
Step S230, coating an ultraviolet curing optical adhesive on one side of the prepared dimming functional layer 10, covering the dimming functional layer 10 on a third substrate on which the light absorbing portions 210 are arranged, extruding to fill the optical adhesive in the spaces between the light absorbing portions 210 to form light transmitting portions 220, and curing the ultraviolet adhesive by ultraviolet irradiation to form the light absorbing portions 210 and the light transmitting portions 220 which are alternately arranged.
In steps S220 and S230 of the present embodiment, a plurality of light absorbing parts 210 may be arranged on one surface of the dimming function layer 10, and then a third base material coated with the uv curable optical cement may be pressed over the light absorbing parts 210. In step S200 of the present embodiment, the light modulation functional layer 10 is prepared, and the light absorption functional layer 20 is prepared on one side of the light modulation functional layer 10. It is also possible to prepare the light absorbing functional layer 20 first and then prepare the dimming functional layer 10 on one side of the light absorbing functional layer 20, as known to those skilled in the art. Meanwhile, in order to reduce the thickness of the entire lens 1, the dimming function layer 10 and the light absorption function layer 20 of the present embodiment share one base material. In other embodiments, the dimming functional layer 10 and the light absorption functional layer 20 may be prepared by respectively using two respective substrates, and then the two parts are adhered together by using a transparent optical adhesive to form a laminated structure, which is not described herein again in detail.
Further, the preparation of the spectacles may specifically comprise the following steps:
step S300, cutting: the prepared lens 1 is cut according to the requirement, for example, the corresponding lens 1 profile and electrode 6 profile are ablated by laser.
Step S400, soldering the flexible circuit board 5: the excess ITO film at the electrode 6 was peeled off, and the liquid crystal mixture at that position was wiped off with alcohol to expose the conductive electrode 6. The upper and lower electrodes 6 are not prevented from peeling off due to stress concentration at the welding position, as shown in fig. 6, the two conductive electrodes 6 are arranged in a crossed manner, then the anisotropic conductive adhesive film is pasted on the flexible circuit board 5, and the flexible circuit board 5 is welded to the positions of the electrodes 6 under certain temperature, pressure and time.
Step S500, detection: the energization detects whether the dimming function layer 10 can be switched between a bright state and a dark state.
Step S600, assembling: and (3) installing the detected lens 1 in the lens 1 installation area of the glasses frame 2, installing a driving device at a preset position in the glasses legs, and realizing electric connection, namely completing the preparation of the whole glasses.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Claims (8)
1. A dimming lens, comprising:
the dimming functional layer comprises a first base material and a second base material which are arranged oppositely, and a polymer dispersed liquid crystal layer positioned between the first base material and the second base material, wherein the first base material and the second base material are both transparent sheet materials, and conductive layers are arranged on the sides, close to the polymer dispersed liquid crystal layer, of the first base material and the second base material;
the light absorption functional layer is arranged on any side of the dimming functional layer in a laminated mode and comprises a third base material, a light absorption part and a light transmission part;
the third base material is a transparent sheet material and is arranged opposite to the first base material or the second base material;
the light absorbing part and the light transmitting part are both in a plurality of numbers, and the light absorbing part and the light transmitting part are both in a strip shape; each light absorption part and each light transmission part are alternately arranged between the first base material and the third base material or between the second base material and the third base material, and the light absorption parts contain light absorption materials.
2. The dimming lens of claim 1, wherein the light absorbing portion has a hexagonal cross-sectional shape along a direction perpendicular to the strip direction.
3. The dimming lens of claim 1, wherein the light absorbing material comprises carbon black particles, the light absorbing portion further comprises an adhesive, and the light absorbing material is adhered by the adhesive.
4. The dimming lens of claim 1, wherein the light transmissive portion comprises a transparent filler, and the transparent filler is an optical cement.
5. A pair of dimming glasses, comprising:
a frame comprising a lens mounting area;
the dimming lens of any one of claims 1-4, disposed in the lens mounting area, the light absorbing functional layer of the dimming lens being located on a side away from the eye;
the lens driving device is arranged in the spectacle frame, is electrically connected with the dimming function layer of the dimming lens and is used for controlling the liquid crystal deflection direction and the deflection angle of the dimming function layer;
the switch is arranged on the spectacle frame, is electrically connected with the lens driving device and is used for controlling the opening and closing of the lens driving device.
6. The dimming glasses according to claim 5, wherein the lens driving device comprises:
a power supply for providing a direct current;
the direct current-alternating current converter is connected with the power supply and is used for converting direct current of the power supply into alternating current;
a driving circuit for applying the alternating current to the dimming function layer.
7. A method for preparing a light-adjusting lens is characterized by comprising the following steps:
providing a first substrate and a second substrate which are transparent and flaky, preparing a conductive layer on one surface of the first substrate and one surface of the second substrate, and preparing a polymer dispersed liquid crystal layer between the two conductive layers to form a dimming functional layer;
preparing a plurality of light absorbing parts and light transmitting parts to form a light absorbing functional layer, and laminating the light absorbing functional layer on any side of the dimming functional layer; wherein the light absorption part contains a light absorption material and is in a strip shape;
providing a third substrate which is transparent and is in a sheet shape, and arranging a plurality of strip-shaped light absorption parts on the third substrate or the light modulation functional layer at intervals;
and adhering the dimming function layer and the third base material by using transparent optical cement, filling the transparent optical cement in the intervals between the light absorption parts, wherein the interval between two adjacent light absorption parts is the light transmission part.
8. The method of manufacturing according to claim 7, wherein the manufacturing of the plurality of light absorbing portions in a stripe shape includes:
adding the light absorption material into the adhesive, and then forming a strip-shaped light absorption part by injection molding;
or, the light absorbing material is added into the adhesive, and then a strip-shaped light absorbing part is formed by adopting a 3D printing technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468166.9A CN110133869B (en) | 2019-05-31 | 2019-05-31 | Light-adjusting lens, preparation method thereof and light-adjusting glasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468166.9A CN110133869B (en) | 2019-05-31 | 2019-05-31 | Light-adjusting lens, preparation method thereof and light-adjusting glasses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110133869A CN110133869A (en) | 2019-08-16 |
| CN110133869B true CN110133869B (en) | 2021-04-20 |
Family
ID=67583427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910468166.9A Active CN110133869B (en) | 2019-05-31 | 2019-05-31 | Light-adjusting lens, preparation method thereof and light-adjusting glasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110133869B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323975A (en) * | 2020-04-09 | 2020-06-23 | Tcl华星光电技术有限公司 | Optical film with dimming characteristic and manufacturing method thereof |
| CN111423827A (en) * | 2020-05-09 | 2020-07-17 | 湖北航天化学技术研究所 | Anti-reflection and light-oriented composite film and preparation method and application thereof |
| CN114871081A (en) * | 2022-06-02 | 2022-08-09 | 福耀玻璃工业集团股份有限公司 | Preparation method of conductive adhesive layer, preparation method of dimming assembly and preparation method of dimming glass |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201373963Y (en) * | 2008-12-25 | 2009-12-30 | 比亚迪股份有限公司 | Light adjusting film |
| US20160026009A1 (en) * | 2012-11-01 | 2016-01-28 | Nejc Urbajs | Glasses for amblyopia treatment |
| CN206147191U (en) * | 2016-09-06 | 2017-05-03 | 广东安贝斯科技有限公司 | Smart anti-glare sunglasses |
| CN206532048U (en) * | 2016-12-20 | 2017-09-29 | 山西瑞豪生物科技有限公司 | A kind of eyeglass and the glasses for treating amblyopia |
-
2019
- 2019-05-31 CN CN201910468166.9A patent/CN110133869B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110133869A (en) | 2019-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7351244B2 (en) | Laminated glass, method for manufacturing laminated glass, light control device, light control cell, and laminate for light control device | |
| CN110133869B (en) | Light-adjusting lens, preparation method thereof and light-adjusting glasses | |
| DE69811201T2 (en) | LIQUID CRYSTAL DISPLAY | |
| US6671008B1 (en) | Electro-optical glazing structures having scattering and transparent modes of operation and methods and apparatus for making the same | |
| US6897936B1 (en) | Electro-optical glazing structures having scattering and transparent modes of operation | |
| CN201097041Y (en) | Liquid crystal display device | |
| US20040160538A1 (en) | Electro-optical glazing structures having scattering and transparent modes of operation and methods and apparatus for making the same | |
| EP2998786B1 (en) | A chiral nematic liquid crystal light shutter | |
| JPH05249443A (en) | Polymer dispersion type liquid crystal display element and reflection type liquid crystal display device | |
| US8054421B2 (en) | Reflective display panel and method for manufacturing such a display panel | |
| CN104536188B (en) | Transparent display and preparation method thereof | |
| US20220105710A1 (en) | Light modulating device and manufacturing method therefor | |
| CN116400526A (en) | Display module, driving method and display device | |
| WO2017122245A1 (en) | Optical device, and window with light distribution function | |
| KR20150086892A (en) | Smart windows for infrared cut | |
| JP7404910B2 (en) | Dimming cells and dimmers | |
| JP2022176315A (en) | Light controlling member, structure, and method for disposing light controlling member | |
| US20060119915A1 (en) | Display panel and display device | |
| JP2023053257A (en) | Light control cell and manufacturing method thereof, light control device, and method of manufacturing the same | |
| JP2816571B2 (en) | Patterned light control material and method of manufacturing the same | |
| US8203688B2 (en) | Liquid crystal display | |
| JP2022080310A (en) | Dimming sheet and manufacturing method of dimming sheet | |
| CN104049372B (en) | 2d/3d switchable display device | |
| JP2020024267A (en) | Light control cell and manufacturing method thereof, and light control device and manufacturing method thereof | |
| JP7409125B2 (en) | Light control device and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |