CN114690440B - Correction type lens and preparation method thereof - Google Patents
Correction type lens and preparation method thereof Download PDFInfo
- Publication number
- CN114690440B CN114690440B CN202210426211.6A CN202210426211A CN114690440B CN 114690440 B CN114690440 B CN 114690440B CN 202210426211 A CN202210426211 A CN 202210426211A CN 114690440 B CN114690440 B CN 114690440B
- Authority
- CN
- China
- Prior art keywords
- layer
- substrate
- light blocking
- angstroms
- lens
- 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
- 238000002360 preparation method Methods 0.000 title description 7
- 239000000758 substrate Substances 0.000 claims abstract description 118
- 230000000903 blocking effect Effects 0.000 claims abstract description 111
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000011521 glass Substances 0.000 claims abstract description 31
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910000484 niobium oxide Inorganic materials 0.000 claims abstract description 21
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000010936 titanium Substances 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 229910000480 nickel oxide Inorganic materials 0.000 claims abstract description 11
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 376
- 239000000463 material Substances 0.000 claims description 28
- 238000002834 transmittance Methods 0.000 claims description 17
- 230000004888 barrier function Effects 0.000 claims description 14
- 239000011241 protective layer Substances 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000001228 spectrum Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- 238000001771 vacuum deposition Methods 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000007740 vapor deposition Methods 0.000 claims 1
- 230000000007 visual effect Effects 0.000 abstract description 14
- 210000001508 eye Anatomy 0.000 abstract description 11
- 201000009310 astigmatism Diseases 0.000 abstract description 5
- 230000002829 reductive effect Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 18
- 229910052681 coesite Inorganic materials 0.000 description 9
- 229910052906 cristobalite Inorganic materials 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 239000000377 silicon dioxide Substances 0.000 description 9
- 235000012239 silicon dioxide Nutrition 0.000 description 9
- 229910052682 stishovite Inorganic materials 0.000 description 9
- 229910052905 tridymite Inorganic materials 0.000 description 9
- 229910009815 Ti3O5 Inorganic materials 0.000 description 7
- 230000004438 eyesight Effects 0.000 description 7
- 239000004677 Nylon Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 229920000515 polycarbonate Polymers 0.000 description 4
- 239000004417 polycarbonate Substances 0.000 description 4
- 210000005252 bulbus oculi Anatomy 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 208000004350 Strabismus Diseases 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 2
- 230000016776 visual perception Effects 0.000 description 2
- 206010049155 Visual brightness Diseases 0.000 description 1
- 206010047571 Visual impairment Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- -1 acryl Chemical group 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 201000009308 regular astigmatism Diseases 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Eyeglasses (AREA)
Abstract
The invention relates to a correction lens and glasses, wherein the correction lens comprises a substrate, and the outer surface of the substrate is provided with a light blocking layer and an outer lens increasing film layer which are connected when the side, far away from a user, of the correction lens is defined to be the outer side in a use state; an inner permeability-increasing film layer is arranged on the inner surface of the substrate; the light blocking layer is a mixture layer of nickel, titanium and niobium oxide, and is annularly distributed on the outer edge of the substrate, so that light rays on the periphery of the substrate are limited to enter the glasses of a user. The correction type lens can focus an observation visual angle, and meanwhile, oblique light rays at the periphery of the lens and other areas are prevented from entering human eyes, so that observation interference is reduced, and the correction type lens can be applied to preventing and improving astigmatism.
Description
Technical Field
The invention relates to a lens protection and adjustment function, in particular to a correction type lens and a preparation method thereof.
Background
Astigmatism is an abnormal appearance of refraction and cannot form a clear object image because the patient's eye is not properly focused. For regular astigmatism types, the lens can be used for correction, and a shielding plate is arranged on the outer side of the lens generally, and when correction is needed, the shielding plate is rotated to a preset position in a rotating mode so as to adjust external light entering eyeballs.
However, such lenses can create discomfort to the wearer, i.e., a clear feeling of hanging obscuration in front of the eye, and a psychologically poor feeling.
Disclosure of Invention
The invention aims to overcome the defects of the prior lens, and provides a correction type lens which can realize the treatment of light rays in a invisible way on the premise of not interfering the vision of a user, and comprises the steps of blocking the light rays at the edge of the lens from entering eyes of a person through incidence, reflection and scattering at different angles, so that the eyes of the wearer can concentrate, gather and observe positively, and the correction type lens has the effects of preventing and improving the problems of astigmatism, strabismus and the like of the eyes.
In the invention, the correction lens forms a functional film layer on the substrate in a film coating mode, and the correction lens comprises a light blocking layer and a lens increasing film layer, wherein the light blocking layer has the functions of limiting and blocking peripheral light, and can reduce the light entering eyeballs, and has dark visual sense. Conventional barrier materials generally have a general effect on blocking light and are prone to interfere with the wearer's vision, i.e., form a dark-colored coating, such that the wearer is visibly aware of the presence of the barrier layer. The invention adopts the mixture layer of nickel, titanium and niobium oxide, which not only can ensure the light blocking effect, but also can not interfere the observation window of the wearer, and the light blocking layer is arranged on the outer ring of the lens and has limited width, thereby leading the user to feel that the light blocking layer is not blocked to a certain extent and is consistent with the visual feeling of the normal glasses. The light treatment can thus be effected "stealthy". On the other hand, the light blocking layer can also play a role in limiting scattered light, so that strabismus of eyes is reduced, the eyes can be enabled to have better condensation, and a correction effect is achieved.
Because the light ray blocking layer can reduce the light ray entering the eyeball, the invention adjusts the light ray through the outer increasing film layer and the inner increasing film layer, and the normal vision and brightness feeling of eyes are restored. Preferably, the outer increasing-permeability film layer and the inner increasing-permeability film layer are alternately stacked with high-refractive-index layers and low-refractive-index layers, and the thickness is 1500-4500 angstroms. The effect of the transparency-increasing film layer and the light blocking layer on light is opposite, and the film layer on the surface of the lens forms a whole, so that the anti-reflection effect and the blocking effect on light can be formed together. In order to prevent the transition of the transparency-increasing film layer from interfering the blocking effect of the lens on the edge light of the lens and causing adverse effect on the correction overall effect, the transparency-increasing film layer is preferably an 8-layer film, the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are high-refractive index layers with thicknesses of 50-150 angstroms, 150-350 angstroms, 500-800 angstroms and 150-350 angstroms respectively, and the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are low-refractive index layers with thicknesses of 200-600 angstroms, 50-250 angstroms and 600-1100 angstroms respectively.
The specific scheme is as follows:
The correcting lens comprises a substrate, wherein the side, far away from a user, of the correcting lens in a use state is defined to be outside, and a light blocking layer and an external lens increasing film layer which are connected are arranged on the outer surface of the substrate; an inner permeability-increasing film layer is arranged on the inner surface of the substrate; the light blocking layer is a mixture layer of nickel, titanium and niobium oxide, and is annularly distributed on the outer edge of the substrate, so that light rays on the periphery of the substrate are limited to enter the glasses of a user.
Further, the light blocking layer extends from the outer edge of the substrate to the central region for 4-8mm, preferably 6-7mm.
Further, the light barrier layer contains 1-5wt% of nickel, 5-10wt% of titanium and 85-94wt% of niobium oxide.
Further, the light blocking layer comprises a first light blocking layer and a second light blocking layer, and is specific, the first light blocking layer is located between the outer surface of the substrate and the first outer transparency-increasing film layer, the outer surface of the first outer transparency-increasing film layer is connected with the second light blocking layer, and the outer surface of the second light blocking layer is connected with the second outer transparency-increasing film layer and/or the protective layer.
Further, the thicknesses of the first light blocking layer and the second light blocking layer are respectively 2000-3000 angstroms and 3000-5000 angstroms; the thickness of the protective layer is 300-500 angstroms.
Further, the transmittance value of the first light blocking layer and the second light blocking layer in the visible light spectrum area is less than 1%.
Further, the outer transparency-increasing film layer and the inner transparency-increasing film layer are alternately stacked with a high refractive index layer and a low refractive index layer, the refractive index of the high refractive index layer is 1.90-2.50, the refractive index of the low refractive index layer is 1.3-1.5, and the thicknesses of the outer transparency-increasing film layer and the inner transparency-increasing film layer are 1500-4500 angstroms.
Further, the outer increasing transparency film layer and the inner increasing transparency film layer comprise 8 layers of films which are sequentially connected from inside to outside, wherein the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are high refractive index layers with the thicknesses of 50-150 angstroms, 150-350 angstroms, 500-800 angstroms and 150-350 angstroms respectively, the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are low refractive index layers with the thicknesses of 200-600 angstroms, 50-250 angstroms and 600-1100 angstroms respectively; the transmittance of the outer increasing transparent film layer and the inner increasing transparent film layer in the visible light spectrum region wavelength 380-720nm range is more than 99%.
The invention also provides a preparation method of the correction lens, which comprises the following steps:
s1, cleaning a substrate, and drying to obtain a clean substrate;
S2, placing the clean substrate on a jig, sending the substrate into a vacuum coating chamber, vacuumizing, starting an ion source to clean the surface of the substrate when the vacuum degree in the vacuum chamber is below 3 x 10 < -5 > Torr, and controlling the temperature in the vacuum chamber to be 50-70 ℃ and the evaporation rate to be below 1.5 x 10 < -5 > Torr Sequentially bombarding a plurality of materials of the light blocking layer, the outer increasing-transparency film layer and the inner increasing-transparency film layer by adopting an electron gun so as to form the light blocking layer and the outer increasing-transparency film layer on the inner surface and the outer surface of the substrate;
Optionally, a protective layer may be deposited on the outermost side of the correction lens, specifically, the vacuum degree in the vacuum chamber is kept below 1.5x10 < -5 > Torr, the temperature in the vacuum chamber is controlled at 50-70 ℃ and the deposition rate is controlled at And heating the waterproof material by adopting group evaporation, and depositing the waterproof material on the outer surface of the light blocking layer in a molecular crystal form after the waterproof material is evaporated to form a protective layer.
The invention also provides a pair of glasses, comprising the correction type lens.
The beneficial effects are that:
According to the invention, the correction type lens can reduce interference of peripheral light rays of the lens on a user, so that the user can focus on the central area of the lens for observation, thereby adjusting the visual angle, preventing astigmatism and having correction effect on regular astigmatic crowd.
Furthermore, the light blocking layer, the outer increasing film layer and the inner increasing film layer are arranged on the surface of the lens, so that the normal visual perception of a user is not changed, the correction effect is achieved in intangible, and the invention has good market application prospect.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. The specific techniques or conditions are not identified in the examples and are performed according to techniques or conditions described in the literature in this field or according to the product specifications. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention. In the examples below, "%" refers to weight percent, unless explicitly stated otherwise.
In the present invention, the correction lens includes a substrate, which may be any one selected from the group consisting of an acryl substrate, a polycarbonate substrate, a nylon substrate, a CR-39 substrate, and a glass substrate. Defining one side of the correction lens far away from a user in a use state as the outside, wherein the outer surface of the substrate is provided with a light blocking layer and an outer lens increasing film layer which are connected; an inner permeability-increasing film layer is arranged on the inner surface of the substrate.
Wherein the light blocking layer is a mixture layer of nickel, titanium and niobium oxide, and preferably, the light blocking layer has a nickel content of 1-5wt%, a titanium content of 5-10wt%, a niobium oxide content of 85-94wt%, for example, a nickel content of 2-4wt%, a titanium content of 6-9wt%, and a niobium oxide content of 88-93wt%, in order to secure a blocking effect.
The light blocking layer is annularly distributed on the outer edge of the substrate, so that light on the periphery of the substrate is limited to enter the glasses of a user. The outer edge of the light barrier layer coincides with the outer edge of the substrate, and the inner edge can be in a regular pattern, such as an elliptical ring, a circular ring, a flower shape and the like, or can be in an irregular shape, such as waves with continuous different radians and the like.
In a specific embodiment, the light blocking layer extends from the outer edge of the substrate to the central region for 4-8mm, preferably 6-7mm, to ensure a balance between the visual brightness of the wearer and protecting the eye from oblique and diffuse light.
The light blocking layer can be one layer or two or more layers, and an antireflection film layer is arranged between the adjacent light blocking layers. Too many layers of the light blocking layer can cause visual disturbances, i.e. shadows in front of the eyes are perceived by the wearer. Preferentially, the light blocking layer includes first light blocking layer and second light blocking layer, specifically, first light blocking layer is located between surface and the first outer enhancement of the substrate film layer, the surface connection of first outer enhancement of the surface of film layer the second light blocking layer, the surface connection second outer enhancement of the surface connection second light blocking layer film layer and/or protective layer of second light blocking layer, under this kind of circumstances, lens border region can realize that the light transmissivity value is less than 1%, for example first light blocking layer the thickness of second light blocking layer is 2000-3000 angstroms, 3000-5000 angstroms respectively, and the person of wearing has better visual perception.
The lens comprises an outer antireflection film layer and an inner antireflection film layer, and can be formed by adopting the existing antireflection technology, and in a specific embodiment, the lens can be formed by sequentially laminating a high refractive index layer and a low refractive index layer. The high refractive index layer has a refractive index of 1.90-2.50, and Ti3O5, ta2O5, zrO2, etc. may be selected. The refractive index of the low refractive index layer is 1.3-1.5, and SiO2, mgF2, etc. can be selected. Preferably, the antireflection film layer comprises 8 layers of films sequentially connected, wherein the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are high-refractive-index layers with thicknesses of 50-150 angstroms, 150-350 angstroms, 500-800 angstroms and 150-350 angstroms respectively, and the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are low-refractive-index layers with thicknesses of 200-600 angstroms, 50-250 angstroms and 600-1100 angstroms respectively. The light transmittance of the transparency-increasing film layer in the range of 380-720nm in the visible light spectrum region is more than 99% through the 8-layer structure, so that the weakening of the brightness by the light barrier layer is made up, meanwhile, excessive visual differences are not generated, and the limiting effect of the light barrier layer which is used for enabling a wearer to perceive the extension of the lens is avoided.
Example 1
A correction lens comprises a substrate, wherein the thickness of the substrate is 2mm, and glass materials are used for manufacturing the correction lens. In other embodiments, the substrate may be any one selected from an acrylic substrate, a polycarbonate substrate, a nylon substrate, and a CR-39 substrate, and preferably the substrate has a thickness of 0.5-3.5mm.
Defining one side of the correction lens far away from a user in a use state as the outside, wherein the outer surface of the substrate is provided with a light blocking layer and an outer lens increasing film layer which are connected; an inner permeability-increasing film layer is arranged on the inner surface of the substrate.
The light blocking layer is annularly distributed on the outer edge of the substrate, so that the light on the periphery of the substrate is limited to enter the glasses of a user, for example, the glasses can be elliptical rings, or the inner side of the glasses is wavy, and the outer side of the glasses overlaps with the outer edge of the substrate. To ensure a visual effect, the width of the light blocking layer should be limited, for example, by extending 4mm from the outer edge of the substrate to the central region, so that sufficient light passing space is left for the central region of the lens.
Specifically, the surface of the substrate is sequentially laminated with a first light blocking layer, an outer transparency increasing film layer and a second light blocking layer. The first light blocking layer and the second light blocking layer are made of the same material and are all mixture layers of nickel, titanium and niobium oxide, wherein the nickel content is 5wt%, the titanium content is 5wt%, and the niobium oxide content is 90wt%. The thicknesses of the first light blocking layer and the second light blocking layer are 2000 angstroms and 4000 angstroms respectively.
The outer transparency-increasing film layer is formed by alternately stacking a high refractive index layer and a low refractive index layer, specifically Ti3O5 and SiO2, and comprises 8 layers, wherein the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are Ti3O5 material layers, the thicknesses of the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are respectively 100 angstroms, 250 angstroms, 600 angstroms and 250 angstroms, the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are SiO2 layers, and the thicknesses of the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are respectively 400 angstroms, 150 angstroms and 1000 angstroms. The inner antireflection film layer has the same structure as the outer antireflection film layer, namely comprises 8 layers of alternately stacked high and low refractive index layers, wherein the 1 st layer is connected with the outer surface of the substrate.
The corrective lens is totally colorless in appearance and dark band areas are visible at the edges of the lens. The dark band area at the edge of the lens cannot be perceived by the user after wearing it, but it naturally will be observed through the center of the lens when it is observed, since the visual observation area of the lens is smaller than the actual size of the lens. At the same time, light near the periphery of the lens is blocked, reducing the overall width of vision. The optical test shows that the light transmittance of the center of the correction lens is greater than 99% in the range of 380-720nm of visible light wavelength, and the light transmittance of the outer edge (2-3 mm from the outside of the substrate to the central area) in the range of 380-720nm of visible light wavelength is less than 1%.
Example 2
A corrective lens includes a nylon substrate having a thickness of 1.5mm.
Defining one side of the correction lens far away from a user in a use state as the outside, wherein the outer surface of the substrate is provided with a light blocking layer and an outer lens increasing film layer which are connected; an inner permeability-increasing film layer is arranged on the inner surface of the substrate.
The light blocking layer is annularly distributed on the outer edge of the substrate, so that the light on the periphery of the substrate is limited to enter the glasses of a user, for example, the glasses can be elliptical rings, or the inner side of the glasses is wavy, and the outer side of the glasses overlaps with the outer edge of the substrate. To ensure visual effect, the width of the light blocking layer should be limited, extending 8mm from the outer edge of the substrate to the central area, so that sufficient light passing space is left for the central area of the lens.
Specifically, the surface of the substrate is sequentially laminated with a first light blocking layer, an outer transparency increasing film layer and a second light blocking layer. The first light blocking layer and the second light blocking layer are the same material and are all mixture layers of nickel, titanium and niobium oxide, wherein the nickel content is 3wt%, the titanium content is 3wt%, and the niobium oxide content is 94wt%. The thicknesses of the first light blocking layer and the second light blocking layer are 2300 angstroms and 4500 angstroms, respectively.
The outer transparency-increasing film layer is formed by alternately stacking a high refractive index layer and a low refractive index layer, specifically Ta2O5 and SiO2, and comprises 8 layers, namely a1 st layer, a3 rd layer, a 5 th layer and a 7 th layer are respectively formed by Ta2O5 material layers, the thicknesses of the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are respectively 50 angstroms, 150 angstroms, 800 angstroms and 150 angstroms, the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are respectively formed by SiO2 layers, and the thicknesses of the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are respectively 300 angstroms, 100 angstroms, 250 angstroms and 600 angstroms.
The preparation method comprises the following steps:
s1, cleaning a substrate, and drying to obtain a clean substrate;
s2, placing the clean substrate on a jig, sending the substrate into a vacuum coating chamber, vacuumizing, starting an ion source to clean the surface of the substrate when the vacuum degree in the vacuum chamber is below 3 x 10 -5 Torr, and controlling the temperature in the vacuum chamber to be 50-70 ℃ and the evaporation rate to be below 1.5 x 10 -5 Torr The electron gun is adopted to bombard a plurality of film layer materials in sequence, so that a first light barrier layer, an outer transparency increasing film layer and a second light barrier layer are formed on the inner surface and the outer surface of the substrate.
The corrective lens is totally colorless in appearance and dark band areas are visible at the edges of the lens. The dark band area at the edge of the lens cannot be perceived by the user after wearing it, but it naturally will be observed through the center of the lens when it is observed, since the visual observation area of the lens is smaller than the actual size of the lens. At the same time, light near the periphery of the lens is blocked, reducing the overall width of vision. The optical test shows that the light transmittance of the center of the correction lens is greater than 99% in the range of 380-720nm of visible light wavelength, and the light transmittance of the outer edge (2-3 mm from the outside of the substrate to the central area) in the range of 380-720nm of visible light wavelength is less than 1%.
Example 3
A corrective lens includes a polycarbonate substrate having a thickness of 1mm. Defining one side of the correction lens far away from a user in a use state as the outside, wherein the outer surface of the substrate is provided with a light blocking layer, an outer transparency increasing film layer and a protective layer; an inner permeability-increasing film layer is arranged on the inner surface of the substrate.
The light blocking layer is annularly distributed on the outer edge of the substrate, so that the light on the periphery of the substrate is limited to enter the glasses of a user, for example, the glasses can be elliptical rings, or the inner side of the glasses is wavy, and the outer side of the glasses overlaps with the outer edge of the substrate. To ensure visual effect, the width of the light blocking layer should be limited, extending 6mm from the outer edge of the substrate to the central area, so that sufficient light passing space is left for the central area of the lens.
Specifically, the surface of the substrate is sequentially laminated with a first light blocking layer, an outer transparency increasing film layer, a second light blocking layer and a protective layer. The first light blocking layer and the second light blocking layer are made of the same material and are all mixture layers of nickel, titanium and niobium oxide, wherein the nickel content is 4wt%, the titanium content is 10wt%, and the niobium oxide content is 86wt%. The thicknesses of the first light blocking layer and the second light blocking layer are 3000 angstroms and 5000 angstroms respectively.
The outer transparency-increasing film layer is formed by alternately stacking a high refractive index layer and a low refractive index layer, specifically, zrO2 and MgF2 are alternately stacked, and comprises 8 layers, namely a 1 st layer, a3 rd layer, a5 th layer and a 7 th layer are ZrO2 material layers, the thicknesses of the layers are respectively 80 angstroms, 160 angstroms, 700 angstroms and 350 angstroms, the thicknesses of the layers 2,4 th layer, 6 th layer and 8 th layer are MgF2 layers, and the thicknesses of the layers are respectively 500 angstroms, 250 angstroms, 150 angstroms and 1100 angstroms.
The preparation method comprises the following steps:
s1, cleaning a substrate, and drying to obtain a clean substrate;
s2, placing the clean substrate on a jig, sending the substrate into a vacuum coating chamber, vacuumizing, starting an ion source to clean the surface of the substrate when the vacuum degree in the vacuum chamber is below 3 x 10 -5 Torr, and controlling the temperature in the vacuum chamber to be 50-70 ℃ and the evaporation rate to be below 1.5 x 10 -5 Torr The electron gun is adopted to bombard a plurality of film layer materials in sequence, so that a first light barrier layer, an outer transparency increasing film layer and a second light barrier layer are formed on the inner surface and the outer surface of the substrate.
S3, keeping the vacuum degree in the vacuum chamber below 1.5 x 10 -5 Torr, controlling the temperature in the vacuum chamber to be 50-70 ℃ and controlling the evaporation rate to beAnd heating the waterproof material by adopting group evaporation, and depositing the waterproof material on the outer surface of the light blocking layer in a molecular crystal form after the waterproof material is evaporated to form a protective layer, wherein the thickness of the protective layer is 300 angstroms. In other embodiments, the protective layer may be 400 angstroms or 500 angstroms thick.
The corrective lens is totally colorless in appearance and dark band areas are visible at the edges of the lens. The dark band area at the edge of the lens cannot be perceived by the user after wearing it, but it naturally will be observed through the center of the lens when it is observed, since the visual observation area of the lens is smaller than the actual size of the lens. At the same time, light near the periphery of the lens is blocked, reducing the overall width of vision. The optical test shows that the light transmittance of the center of the correction lens is greater than 99% in the range of 380-720nm of visible light wavelength, and the light transmittance of the outer edge (2-3 mm from the outside of the substrate to the central area) in the range of 380-720nm of visible light wavelength is less than 1%.
Example 4
A correction lens comprises a substrate, a glass material, and a thickness of 1.5 mm. In other embodiments, the substrate may be any one selected from an acrylic substrate, a polycarbonate substrate, a nylon substrate, and a CR-39 substrate, and preferably the substrate has a thickness of 0.5-3.5mm.
Defining one side of the correction lens far away from a user in a use state as the outside, wherein the outer surface of the substrate is provided with a light blocking layer and an outer lens increasing film layer which are connected; an inner permeability-increasing film layer is arranged on the inner surface of the substrate.
The light blocking layer is annularly distributed on the outer edge of the substrate, so that the light on the periphery of the substrate is limited to enter the glasses of a user, for example, the glasses can be elliptical rings, or the inner side of the glasses is wavy, and the outer side of the glasses overlaps with the outer edge of the substrate. To ensure visual effect, the width of the light blocking layer should be limited, extending 5mm from the outer edge of the substrate to the central area, so that sufficient light passing space is left for the central area of the lens.
Specifically, the surface of the substrate is sequentially laminated with a first light blocking layer, an outer transparency increasing film layer and a second light blocking layer. The first light blocking layer and the second light blocking layer are made of the same material and are all mixture layers of nickel, titanium and niobium oxide, wherein the content of nickel is 1wt%, the content of titanium is 10wt%, and the content of niobium oxide is 89wt%. The thicknesses of the first light blocking layer and the second light blocking layer are 2300 angstroms and 3800 angstroms, respectively.
The outer transparency-increasing film layer is formed by alternately stacking a high refractive index layer and a low refractive index layer, specifically Ti3O5 and SiO2, and comprises 8 layers, wherein the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are Ti3O5 material layers, the thicknesses of the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are respectively 100 angstroms, 150 angstroms, 5500 angstroms and 150 angstroms, the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are SiO2 layers, and the thicknesses of the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are respectively 600 angstroms, 150 angstroms, 100 angstroms and 900 angstroms. The inner antireflection film layer has the same structure as the outer antireflection film layer, namely comprises 8 layers of alternately stacked high and low refractive index layers, wherein the 1 st layer is connected with the outer surface of the substrate.
The corrective lens is totally colorless in appearance and dark band areas are visible at the edges of the lens. The dark band area at the edge of the lens cannot be perceived by the user after wearing it, but it naturally will be observed through the center of the lens when it is observed, since the visual observation area of the lens is smaller than the actual size of the lens. At the same time, light near the periphery of the lens is blocked, reducing the overall width of vision. The optical test shows that the light transmittance of the center of the correction lens is greater than 99% in the range of 380-720nm of visible light wavelength, and the light transmittance of the outer edge (2-3 mm from the outside of the substrate to the central area) in the range of 380-720nm of visible light wavelength is less than 1%.
Comparative example 1
Referring to example 1, a difference is that the materials of the first light blocking layer and the second light blocking layer are different from example 1, and a mixture layer of nickel, titanium and niobium oxide is used, in which the content of nickel is 10wt%, the content of titanium is 40wt%, and the content of niobium oxide is 50wt%. The remainder was carried out according to the structure and preparation method in example 1 to obtain a comparative lens.
The contrast lens has a light transmittance of greater than 99% at the center of the lens in the range of 380-720nm at visible wavelengths, and a light transmittance of less than 1% at the outer edge (2-3 mm from the outside of the substrate to the center region) in the range of 380-720nm at visible wavelengths, as measured by light. However, after the lens wearer, the user can see the annular region of the outer edge of the lens, with a different color feel than the central line of sight region, resulting in a poor wearing experience.
Comparative example 2
A contrast lens comprises a substrate, the thickness of which is 2mm, and glass materials. And defining one side, far away from a user, of the correction lens in a use state as the outside, wherein the outer surface of the substrate is provided with a light blocking layer and an outer lens increasing film layer which are connected.
The light blocking layer is annularly distributed on the outer edge of the substrate, so that the light on the periphery of the substrate is limited to enter the glasses of a user, for example, the glasses can be elliptical rings, or the inner side of the glasses is wavy, and the outer side of the glasses overlaps with the outer edge of the substrate. To ensure a visual effect, the width of the light blocking layer should be limited, for example, by extending 4mm from the outer edge of the substrate to the central region, so that sufficient light passing space is left for the central region of the lens.
Specifically, the surface of the substrate is sequentially laminated with a first light blocking layer, an outer transparency increasing film layer and a second light blocking layer. The first light blocking layer and the second light blocking layer are made of the same material and are all mixture layers of nickel, titanium and niobium oxide, wherein the nickel content is 5wt%, the titanium content is 5wt%, and the niobium oxide content is 90wt%. The thicknesses of the first light blocking layer and the second light blocking layer are 2000 angstroms and 4000 angstroms respectively.
The outer transparency-increasing film layer is formed by alternately stacking a high refractive index layer and a low refractive index layer, specifically Ti3O5 and SiO2, and comprises 8 layers, wherein the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are Ti3O5 material layers, the thicknesses of the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are respectively 100 angstroms, 250 angstroms, 600 angstroms and 250 angstroms, the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are SiO2 layers, and the thicknesses of the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are respectively 400 angstroms, 150 angstroms and 1000 angstroms.
The contrast lens was tested by light, the transmittance of the center of the lens was 95% in the range of 380-720nm at the visible wavelength, and the transmittance of the outer edge (2-3 mm from the outside of the substrate to the center area) was less than 1% in the range of 380-720nm at the visible wavelength. However, after the lens wearer, the user can partially see the annular region of the outer edge of the lens, with a different color feel than the central line of sight region, resulting in a poor wearing experience. Meanwhile, the brightness of the lens imaging has obvious deviation from the real situation, the whole object image is dark, the discomfort is caused, and the accurate observation is not facilitated.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (9)
1. A corrective lens, characterized by: the correcting lens comprises a substrate, wherein the side, far away from a user, of the correcting lens in a use state is defined to be the outside, and a light blocking layer and an external lens increasing film layer which are connected are arranged on the outer surface of the substrate; an inner permeability-increasing film layer is arranged on the inner surface of the substrate; the light barrier layer is a mixture layer of nickel, titanium and niobium oxide, is annularly distributed on the outer edge of the substrate, and extends from the outer edge of the substrate to the central area for 4-8mm, so that light on the periphery of the substrate is limited to enter the glasses of a user;
The outer transparency-increasing film layer and the inner transparency-increasing film layer are alternately stacked with high-refractive-index layers and low-refractive-index layers, the refractive index of the high-refractive-index layers is 1.90-2.50, the refractive index of the low-refractive-index layers is 1.3-1.5, and the thicknesses of the outer transparency-increasing film layer and the inner transparency-increasing film layer are 1500-4500 angstroms;
The outer increasing film layer and the inner increasing film layer comprise 8 layers of films which are sequentially connected from inside to outside, wherein the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are high refractive index layers, the thicknesses of the layers are respectively 50-150 angstroms, 150-350 angstroms, 500-800 angstroms and 150-350 angstroms, the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are low refractive index layers, and the thicknesses of the layers are respectively 200-600 angstroms, 50-250 angstroms and 600-1100 angstroms; the transmittance of the outer increasing film layer and the inner increasing film layer in the wavelength 380-720nm range of the visible light spectrum region is more than 99%;
The light blocking layer comprises a first light blocking layer and a second light blocking layer, and is characterized in that the first light blocking layer is located between the outer surface of the substrate and the first outer transparency-increasing film layer, the outer surface of the first outer transparency-increasing film layer is connected with the second light blocking layer, and the outer surface of the second light blocking layer is connected with the second outer transparency-increasing film layer and/or the protective layer.
2. The corrective lens of claim 1, wherein: the light blocking layer extends from the outer edge of the substrate to the central region for 6-7mm.
3. The corrective lens of claim 1, wherein: the light barrier layer contains 1-5wt% of nickel, 5-10wt% of titanium and 85-94wt% of niobium oxide.
4. The corrective lens of claim 1, wherein: the thicknesses of the first light blocking layer and the second light blocking layer are respectively 2000-3000 angstroms and 3000-5000 angstroms; the thickness of the protective layer is 300-500 angstroms.
5. The corrective lens of claim 4, wherein: the transmittance value of the first light blocking layer and the second light blocking layer in the visible light spectrum area is less than 1%.
6. A method of producing a corrective lens as defined in any one of claims 1 to 5, characterized in that: the method comprises the following steps:
s1, cleaning a substrate, and drying to obtain a clean substrate;
s2, placing the clean substrate on a jig, sending the substrate into a vacuum coating chamber, vacuumizing, starting an ion source to clean the surface of the substrate when the vacuum degree in the vacuum chamber is below 3 x 10 -5 Torr, and controlling the temperature in the vacuum chamber to be 50-70 ℃ and the evaporation rate to be below 1.5 x 10 -5 Torr The electron gun is adopted to bombard a plurality of light barrier layers in sequence the outer increasing-transparency film layer with the material of inner increasing-transparency film layer, so as to form on the internal surface of substrate the inner increasing-transparency film layer and the surface on form the light barrier layers with the outer increasing-transparency film layer.
7. The method of claim 6, wherein a protective layer is deposited on the outermost side of the corrective lens.
8. The method according to claim 7, wherein the vacuum degree in the vacuum chamber is maintained at 1.5 x 10 -5 Torr or less, the temperature in the vacuum chamber is controlled to 50-70deg.C, and the vapor deposition rate is controlled toAnd heating the waterproof material by adopting group evaporation, and depositing the waterproof material on the outer surface of the light blocking layer in a molecular crystal form after the waterproof material is evaporated to form a protective layer.
9. An ophthalmic lens comprising the corrective lens of any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210426211.6A CN114690440B (en) | 2022-04-22 | 2022-04-22 | Correction type lens and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210426211.6A CN114690440B (en) | 2022-04-22 | 2022-04-22 | Correction type lens and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114690440A CN114690440A (en) | 2022-07-01 |
| CN114690440B true CN114690440B (en) | 2024-10-25 |
Family
ID=82144232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210426211.6A Active CN114690440B (en) | 2022-04-22 | 2022-04-22 | Correction type lens and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114690440B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201905548A (en) * | 2016-09-30 | 2019-02-01 | 星歐光學股份有限公司 | Contact lens and contact lens product |
| CN113467101A (en) * | 2021-07-28 | 2021-10-01 | 厦门美澜光电科技有限公司 | Double progressive lens and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205003391U (en) * | 2015-05-29 | 2016-01-27 | 依视路国际集团（光学总公司） | Many burnt glasses lenses and glasses of being furnished with this how burnt glasses lens |
| EP3605202B1 (en) * | 2018-07-31 | 2022-11-09 | Essilor International | Method and system for determining a lens of customized color |
| CN109608576B (en) * | 2018-12-21 | 2021-01-08 | 海昌隐形眼镜有限公司 | Functional corneal contact lens and preparation method thereof |
-
2022
- 2022-04-22 CN CN202210426211.6A patent/CN114690440B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201905548A (en) * | 2016-09-30 | 2019-02-01 | 星歐光學股份有限公司 | Contact lens and contact lens product |
| CN113467101A (en) * | 2021-07-28 | 2021-10-01 | 厦门美澜光电科技有限公司 | Double progressive lens and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114690440A (en) | 2022-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6965220B2 (en) | Eye lens | |
| US20220043186A1 (en) | Visible Spectrum Anti-Reflective Coatings with Reduced Reflections in Ultraviolet and Infrared Spectral Bands | |
| US11199729B2 (en) | Optical article with high reflection in the near infrared region and in the blue light region | |
| US11022821B2 (en) | Materials and methods for mitigating the harmful effects of blue light | |
| CN114690440B (en) | Correction type lens and preparation method thereof | |
| EP4010760B1 (en) | User wearable optical article, method for producing and eyewear using the same | |
| JP2021531511A (en) | Eye lens with anti-reflection and electrochromic functions | |
| CN210222398U (en) | Blue-light-proof infrared-resistant coated resin lens | |
| KR101463956B1 (en) | Lens For Blocking Blue Light | |
| JPH0532828Y2 (en) | ||
| CN218675560U (en) | Correcting astigmatic lens and glasses | |
| US20220397772A1 (en) | Optical lens having an antireflection coating reflecting harmful blue light | |
| EP4102264A1 (en) | Optical lens having an antireflection coating reflecting harmful blue light and nir radiation | |
| KR101833724B1 (en) | Lenses for amblyopia and diplopia and their manufacturing methodsd | |
| US20240230956A1 (en) | Optical lens having an antireflection coating reflecting blue light | |
| CN206920737U (en) | A kind of peripheral hyperopia defocusing compensation glasses | |
| CN205787433U (en) | A kind of visional compensation eyeglass | |
| CN107144978A (en) | A kind of peripheral hyperopia defocusing compensation glasses |
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 |