CN114690440A - Correcting lens and preparation method thereof - Google Patents
Correcting lens and preparation method thereof Download PDFInfo
- Publication number
- CN114690440A CN114690440A CN202210426211.6A CN202210426211A CN114690440A CN 114690440 A CN114690440 A CN 114690440A CN 202210426211 A CN202210426211 A CN 202210426211A CN 114690440 A CN114690440 A CN 114690440A
- Authority
- CN
- China
- Prior art keywords
- layer
- substrate
- light
- angstroms
- film layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title description 6
- 230000000903 blocking effect Effects 0.000 claims abstract description 120
- 239000000758 substrate Substances 0.000 claims abstract description 113
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 42
- 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
- 239000011521 glass Substances 0.000 claims abstract description 15
- 230000004888 barrier function Effects 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 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
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 3
- 238000009826 distribution Methods 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 362
- 239000010408 film Substances 0.000 claims description 57
- 239000010409 thin film Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 23
- 239000011241 protective layer Substances 0.000 claims description 14
- 238000002834 transmittance Methods 0.000 claims description 14
- 238000001704 evaporation Methods 0.000 claims description 12
- 230000008020 evaporation Effects 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 7
- 238000001228 spectrum Methods 0.000 claims description 5
- 238000001771 vacuum deposition Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000012937 correction Methods 0.000 abstract description 25
- 230000000007 visual effect Effects 0.000 abstract description 15
- 210000001508 eye Anatomy 0.000 abstract description 11
- 201000009310 astigmatism Diseases 0.000 abstract description 6
- 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 20
- 229910052681 coesite Inorganic materials 0.000 description 10
- 229910052906 cristobalite Inorganic materials 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 239000000377 silicon dioxide Substances 0.000 description 10
- 235000012239 silicon dioxide Nutrition 0.000 description 10
- 229910052682 stishovite Inorganic materials 0.000 description 10
- 229910052905 tridymite Inorganic materials 0.000 description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 8
- 230000004438 eyesight Effects 0.000 description 8
- 229910009815 Ti3O5 Inorganic materials 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229910001635 magnesium fluoride Inorganic materials 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
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 4
- 210000005252 bulbus oculi Anatomy 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 208000004350 Strabismus Diseases 0.000 description 2
- -1 acryl Chemical group 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 201000009308 regular astigmatism Diseases 0.000 description 2
- 230000016776 visual perception Effects 0.000 description 2
- 206010047571 Visual impairment Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 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
- 230000004456 color vision Effects 0.000 description 1
- 230000007547 defect 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
- 230000001788 irregular Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect 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 correcting lens and spectacles, wherein the correcting lens comprises a substrate, one side of the correcting lens, which is far away from a user in a use state, is defined as the outer side, and the outer surface of the substrate is provided with a light ray blocking layer and an outer transparency increasing film layer which are connected; an inner transparent film layer is arranged on the inner surface of the substrate; the light barrier layer is the mixture layer of nickel, titanium and niobium oxide, the light barrier layer is cyclic annular distribution and is in the outer edge of substrate to the restriction the peripheral light of substrate gets into user's glasses. The correction type lens can focus an observation visual angle, meanwhile, oblique light rays in the periphery and areas outside the periphery of the lens are prevented from entering human eyes, observation interference is reduced, and the correction type lens can be used for preventing and improving the astigmatism problem.
Description
Technical Field
The invention relates to the protection and adjustment functions of a lens, in particular to a correction type lens and a preparation method thereof.
Background
Astigmatism is a refractive abnormality that does not form a sharp object image because the patient's eye does not focus properly. For the regular astigmatism type, the lens can be adopted for correction, the shielding piece is usually arranged on the outer side of the lens, and when correction is needed, the shielding piece is rotated to a preset position in a rotating mode so as to adjust external light rays entering eyeballs.
However, such lenses can be uncomfortable for the wearer, i.e., they can experience significant unsettled obstructions in front of the eyes, creating a poor psychological experience.
Disclosure of Invention
The invention aims to overcome the defects of the existing lenses and provide a correction type lens, which realizes the light treatment in a 'hidden way' on the premise of not interfering the vision of a user, and comprises the steps of blocking the light at the edge of the lens from entering the eyes of the user through incidence, reflection and scattering at different angles, so that the eyes of the wearer can observe in a concentrated, focused and forward mode, 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, wherein the functional film layer comprises a light ray blocking layer and a transparent film layer, the light ray blocking layer has the functions of limiting and blocking peripheral light rays, and the light ray blocking layer can reduce light rays entering eyeballs and has dark visual sense. Conventional barrier materials generally function to block light and tend to interfere with the wearer's vision, i.e., form a dark-toned coating, such that the presence of the barrier layer is clearly perceived by the wearer. The invention adopts the mixture layer of nickel, titanium and niobium oxide, which can not only 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 ensuring that the user can not feel blocked and the vision feeling of the user is consistent with the vision feeling of normal glasses. The processing of the light can thus be realized "invisibly". On the other hand, the light ray blocking layer can play a role in limiting scattered light, the generation of strabismus of eyes is reduced, the eyes can better condense light, and therefore the correction effect is achieved.
Because the light blocking layer can reduce light entering the eyeball, the light is adjusted through the outer transparent film layer and the inner anti-reflection film layer, and the normal visual bright feeling of the eyes is recovered. Preferably, the outer transparency-enhanced thin film layer and the inner transparency-enhanced thin film layer are alternately stacked with a thickness of 1500-. The effect of the transmission-increasing thin film layer and the effect of the light blocking layer on light are opposite, and the film layers on the surfaces of the lenses form a whole, so that the transmission-increasing effect and the blocking effect on the light can be formed together. In order to prevent the increase-transparent thin film layer from transitionally interfering the blocking effect of the lens on the light at the edge of the lens and causing adverse effect on the whole correction effect, the increase-transparent thin film layer is preferably 8 thin films, 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 high-refractive-index layers are 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, and the thicknesses of the low-refractive-index layers are 200-600 angstroms, 50-250 angstroms and 600-1100 angstroms respectively.
The specific scheme is as follows:
a correction type lens comprises a substrate, wherein one side of the correction type lens, which is far away from a user in a use state, is defined as the outside, and a light ray blocking layer and an external transparent film layer which are connected are arranged on the outer surface of the substrate; an inner transparent film layer is arranged on the inner surface of the substrate; the light barrier layer is the mixture layer of nickel, titanium and niobium oxide, the light barrier layer is cyclic annular distribution and is in the outer edge of substrate to the restriction the peripheral light of substrate gets into user's glasses.
Further, the light blocking layer extends 4-8mm, preferably 6-7mm, from the outer edge of the substrate to the central region.
Further, the light blocking layer contains 1-5 wt% of nickel, 5-10 wt% of titanium and 85-94 wt% of niobium oxide.
Further, the light blocking layer includes first light blocking layer and second light blocking layer, and is specific, first light blocking layer is located the surface of substrate and first outer increase between the transparent film layer, first outer surface connection that increases the transparent film layer the second light blocking layer, the outer surface connection second of second light blocking layer increases transparent film layer and/or protective layer outward.
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.
Furthermore, the light transmittance values of the first light ray blocking layer and the second light ray blocking layer in the visible light spectrum region are less than 1%.
Further, the outer transparency-enhanced thin film layer and the inner transparency-enhanced thin film layer are alternately stacked by 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-enhanced thin film layer and the inner transparency-enhanced thin film layer are 1500-4500 angstroms.
Further, the outer transparency-increasing thin film layer and the inner transparency-increasing thin film layer comprise 8 thin films which are sequentially connected from inside to outside, 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 high-refractive-index layers are 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, and the thicknesses of the low-refractive-index layers are 200-600 angstroms, 50-250 angstroms and 600-1100 angstroms respectively; the light transmittance of the external transparent thin film layer and the light transmittance of the internal transparent thin film layer in the range of 380-nm wavelength and 720-nm wavelength of the visible light spectrum region are greater than 99%.
The invention also provides a preparation method of the correcting lens, which comprises the following steps:
s1, cleaning and drying the substrate to obtain a clean substrate;
s2, placing the clean substrate on a jig, feeding the clean substrate into a vacuum coating chamber, vacuumizing the vacuum coating chamber, starting an ion source to clean the surface of the substrate when the vacuum degree in the vacuum chamber reaches below 3 x 10 to 5Torr, and controlling the temperature in the vacuum chamber to be 50 to 70 ℃ and the evaporation rate to be below 1.5 x 10 to 5Torr
Sequentially bombarding materials of the light ray blocking layers, the outer transparent film layer and the inner transparent film layer by adopting an electron gun so as to form the light ray blocking layers and the outer transparent film layer on the inner surface and the outer surface of the substrate;
optionally, a protective layer may be deposited on the outermost surface of the corrective lens, specifically, the vacuum degree in the vacuum chamber is kept below 1.5 × 10-5Torr, and the temperature in the vacuum chamber is controlledIs prepared at 50-70 deg.C and the evaporation rate is controlled at
And heating the waterproof material by group evaporation, and depositing the waterproof material on the outer surface of the light ray blocking layer in a molecular crystal form after evaporation to form a protective layer.
The invention also protects a pair of glasses comprising the correcting lens.
Has the advantages that:
according to the invention, the corrective lens can reduce the interference of peripheral light rays of the lens to a user, so that the user focuses on the central area of the lens to observe, thereby adjusting the visual angle, preventing astigmatism and having a corrective effect on regular astigmatism type people.
Moreover, the light blocking layer, the outer transparent film layer and the inner transparent 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 invisibly achieved, and the lens has a good market application prospect.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available. In the following examples, "%" means weight percent, unless otherwise specified.
In the invention, the correcting lens comprises a substrate, wherein the substrate can be any one of an acrylic substrate, a polycarbonate substrate, a nylon substrate, a CR-39 substrate and a glass substrate. Defining one side of the correction type lens, which is far away from a user in a use state, as an outer side, and arranging a light ray blocking layer and an outer transparent film layer which are connected on the outer surface of the substrate; and the inner surface of the substrate is provided with an inner transparent film layer.
Wherein the light blocking layer is a mixture of nickel, titanium and niobium oxide, and preferably, the light blocking layer contains nickel in an amount of 1 to 5 wt%, titanium in an amount of 5to 10 wt%, and niobium oxide in an amount of 85 to 94 wt%, for example, nickel in an amount of 2 to 4 wt%, titanium in an amount of 6 to 9 wt%, and niobium oxide in an amount of 88 to 93 wt%, in order to ensure the 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 blocking layer coincides with the outer edge of the substrate, and the inner edge of the light blocking layer can be in a regular pattern, such as an elliptical ring, a circular ring, a flower shape and the like, or in an irregular shape, such as waves with continuous arcs and the like.
In a particular embodiment, the light-blocking layer extends from 4 to 8mm, preferably 6 to 7mm, from the outer edge of the substrate towards the central region to provide a balance between visual clarity to the wearer and protection of the eye from oblique and scattered light.
The light blocking layers 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 light-blocking layers can cause visual disturbances, i.e., the wearer experiences shadows in front of the eyes. Preferentially, the light blocking layer comprises a first light blocking layer and a second light blocking layer, specifically, the first light blocking layer is located between the outer surface of the substrate and the first outer transparent film layer, the outer surface of the first outer transparent 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 transparent film layer and/or the protective layer, so that the light transmittance value of the lens edge area can be smaller than 1%, for example, the thicknesses of the first light blocking layer and the second light blocking layer are respectively 3000 angstroms and 5000 angstroms, and a wearer has better visual perception.
The lens of the invention comprises an outer anti-reflection film layer and an inner anti-reflection film layer, and the existing anti-reflection technology can be adopted, 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 to 2.50, and Ti3O5, Ta2O5, ZrO2, and the like can be selected. The low refractive index layer has a refractive index of 1.3-1.5, and SiO2, MgF2, etc. can be selected. Preferably, the antireflection film layer comprises 8 thin films which are connected in sequence, 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, and 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 light transmittance of the transparent film layer in the range of 380-720nm in the wavelength of the visible light spectrum region is larger than 99% through the 8-layer structure, so that the weakening of the light barrier layer to the brightness is compensated, meanwhile, the overlarge visual disparity is not generated, and the limitation effect that a wearer perceives the light barrier layer extending out of the lens is avoided.
Example 1
A correction lens comprises a substrate with a thickness of 2mm and made of glass. In other embodiments, the substrate may be selected from any one of an acryl substrate, a polycarbonate substrate, a nylon substrate, and a CR-39 substrate, and a suitable substrate has a thickness of 0.5 to 3.5 mm.
Defining one side of the correction type lens, which is far away from a user in a use state, as an outer side, and arranging a light ray blocking layer and an outer transparent film layer which are connected on the outer surface of the substrate; and the inner surface of the substrate is provided with an inner transparent film layer.
The light blocking layer is annularly distributed on the outer edge of the substrate so as to limit light on the periphery of the substrate from entering the glasses of a user, and the light blocking layer can be an elliptical ring or an inner wavy line, and the outer side of the light blocking layer is overlapped with the outer edge of the substrate. To ensure visual effect, the width of the light blocking layer should be limited, for example, it may extend 4mm from the outer edge of the substrate to the central area, which may leave sufficient light passing space for the central area of the lens.
Specifically, the outer surface of the substrate is sequentially stacked with a first light blocking layer, an outer transparent 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 both a mixture layer of nickel, titanium and niobium oxide, wherein the content of nickel is 5 wt%, the content of titanium is 5 wt%, and the content of niobium oxide is 90 wt%. 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 thin film layer is formed by alternately stacking a high-refractive-index layer and a low-refractive-index layer, specifically, alternately stacking 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 layers 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 layers are respectively 400 angstroms, 150 angstroms and 1000 angstroms. The structure of the inner anti-reflection film layer is the same as that of the outer transparency-increased film layer, namely, the inner anti-reflection film layer comprises 8 high-refractive-index layers and 8 low-refractive-index layers which are alternately stacked, wherein the 1 st layer is connected with the outer surface of the substrate.
The corrective lens was colorless in appearance as a whole, and a dark band area was visible at the edge of the lens. The user does not perceive the dark colored zone at the edge of the lens when worn, but will naturally see through the center of the lens when viewed because the visual viewing 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 the vision. Through optical test of the correction type lens, the light transmittance of the center of the lens in the range of 380-.
Example 2
A correction type lens comprises a nylon substrate, wherein the thickness of the substrate is 1.5 mm.
Defining one side of the correction type lens, which is far away from a user in a use state, as an outer side, and arranging a light ray blocking layer and an outer transparent film layer which are connected on the outer surface of the substrate; and the inner surface of the substrate is provided with an inner transparent film layer.
The light blocking layer is annularly distributed on the outer edge of the substrate so as to limit light on the periphery of the substrate from entering the glasses of a user, and the light blocking layer can be an elliptical ring or an inner wavy line, and the outer side of the light blocking layer is overlapped with the outer edge of the substrate. To ensure visual effect, the width of the light blocking layer should be limited to extend 8mm from the outer edge of the substrate to the central area, so as to leave sufficient light passing space for the central area of the lens.
Specifically, the outer surface of substrate stacks gradually first light barrier layer, increases and passes through thin layer, second light barrier layer outward. The first light blocking layer and the second light blocking layer are made of the same material and are both a mixture layer of nickel, titanium and niobium oxide, wherein the content of nickel is 3 wt%, the content of titanium is 3 wt%, and the content of niobium oxide is 94 wt%. 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 thin 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, wherein the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are Ta2O5 material layers, the thicknesses of the Ta2O5 material layers are 50 angstroms, 150 angstroms, 800 angstroms and 150 angstroms respectively, 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 SiO2 layers are 300 angstroms, 100 angstroms, 250 angstroms and 600 angstroms respectively.
The preparation method comprises the following steps:
s1, cleaning and drying the substrate to obtain a clean substrate;
s2, placing the clean substrate on a jig, feeding the clean substrate into a vacuum coating chamber, and vacuumizing until the vacuum degree in the vacuum chamber reaches 3 x 10-5Below Torr, starting ion source, cleaning substrate surface, and vacuum degree in vacuum chamber reaches 1.5 × 10-5Controlling the temperature in the vacuum chamber to 50-70 deg.C and the evaporation rate below Torr
And sequentially bombarding a plurality of film layer materials by adopting an electron gun to form a first light ray blocking layer, an outer transparency-increased film layer and a second light ray blocking layer on the inner surface and the outer surface of the substrate.
The corrective lens was colorless in appearance as a whole, and a dark band area was visible at the edge of the lens. The user does not perceive the dark colored zone at the edge of the lens when worn, but will naturally see through the center of the lens when viewed because the visual viewing 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 the vision. Through optical test of the correction type lens, the light transmittance of the center of the lens in the range of 380-.
Example 3
A corrective lens comprises a polycarbonate substrate, wherein the thickness of the substrate is 1 mm. Defining one side of the correcting lens, which is far away from a user in a use state, as the outside, and arranging a light ray blocking layer, an external transparency increasing film layer and a protective layer on the outer surface of the substrate; and the inner surface of the substrate is provided with an inner transparent film layer.
The light blocking layer is annularly distributed on the outer edge of the substrate so as to limit the light on the periphery of the substrate to enter the glasses of a user, and the light blocking layer can be an elliptical ring or has an inner side in a wavy line shape, and the outer side is overlapped with the outer edge of the substrate. To ensure visual effect, the width of the light blocking layer should be limited to extend 6mm from the outer edge of the substrate to the central area, so as to leave sufficient light passing space for the central area of the lens.
Specifically, the surface of substrate stacks gradually first light barrier layer, increases a thin layer, second light barrier layer and protective layer outward. The first light blocking layer and the second light blocking layer are made of the same material and are both a mixture layer of nickel, titanium and niobium oxide, wherein the content of nickel is 4 wt%, the content of titanium is 10 wt%, and the content of niobium oxide is 86 wt%. 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 thin film layer is formed by alternately stacking a high-refractive-index layer and a low-refractive-index layer, specifically, alternately stacking ZrO2 and MgF2, and comprises 8 layers, wherein the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer are ZrO2 material layers, the thicknesses of the ZrO2 material layers are 80 angstroms, 160 angstroms, 700 angstroms and 350 angstroms respectively, the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer are MgF2 layers, and the thicknesses of the MgF2 layers are 500 angstroms, 250 angstroms, 150 angstroms and 1100 angstroms respectively.
The preparation method comprises the following steps:
s1, cleaning and drying the substrate to obtain a clean substrate;
s2, placing the clean substrate on the jigThen the mixture is sent into a vacuum coating chamber and vacuumized, and when the vacuum degree in the vacuum chamber reaches 3 x 10-5Below Torr, starting ion source, cleaning substrate surface, and vacuum degree in vacuum chamber reaches 1.5 × 10-5When the temperature is below Torr, the temperature in the vacuum chamber is controlled to 50-70 deg.C, and the evaporation rate is controlled to
And sequentially bombarding a plurality of film layer materials by adopting an electron gun to form a first light ray blocking layer, an outer transparency-increased film layer and a second light ray blocking layer on the inner surface and the outer surface of the substrate.
S3, keeping the vacuum degree in the vacuum chamber at 1.5 x 10-5Controlling the temperature in the vacuum chamber to 50-70 deg.C and the evaporation rate below Torr
The waterproof material is heated by group evaporation, and is deposited on the outer surface of the light ray blocking layer in a molecular crystal form after being evaporated to form a protective layer, wherein the thickness of the protective layer is 300 angstroms. A protective layer thickness of 400 angstroms or 500 angstroms may be used in other embodiments.
The corrective lens was colorless in appearance as a whole, and a dark band area was visible at the edge of the lens. The user does not perceive the dark colored zone at the edge of the lens when worn, but will naturally see through the center of the lens when viewed because the visual viewing 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 the vision. Through optical test of the correction type lens, the light transmittance of the center of the lens in the range of 380-.
Example 4
A correction lens comprises a substrate with a thickness of 1.5mm and made of glass. In other embodiments, the substrate may be selected from any one of an acryl substrate, a polycarbonate substrate, a nylon substrate, and a CR-39 substrate, and a suitable substrate has a thickness of 0.5 to 3.5 mm.
Defining one side of the correction type lens, which is far away from a user in a use state, as an outer side, and arranging a light ray blocking layer and an outer transparent film layer which are connected on the outer surface of the substrate; and the inner surface of the substrate is provided with an inner transparent film layer.
The light blocking layer is annularly distributed on the outer edge of the substrate so as to limit light on the periphery of the substrate from entering the glasses of a user, and the light blocking layer can be an elliptical ring or an inner wavy line, and the outer side of the light blocking layer is overlapped with the outer edge of the substrate. To ensure visual effect, the width of the light blocking layer should be limited to extend 5mm from the outer edge of the substrate to the central area, so as to leave sufficient light passing space for the central area of the lens.
Specifically, the outer surface of the substrate is sequentially stacked with a first light blocking layer, an outer transparent 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 both a mixture layer of nickel, titanium and niobium oxide, wherein the content of nickel is 1 wt%, the content of titanium is 10 wt%, and the content of niobium oxide is 89 wt%. The thicknesses of the first light blocking layer and the second light blocking layer are 2300 angstroms and 3800 angstroms, respectively.
The outer transparent film layer is formed by alternately stacking a high refractive index layer and a low refractive index layer, specifically, alternately stacking 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 layers are 100 angstroms, 150 angstroms, 5500 angstroms and 150 angstroms respectively, 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 layers are 600 angstroms, 150 angstroms, 100 angstroms and 900 angstroms respectively. The structure of the inner anti-reflection film layer is the same as that of the outer transparency-increased film layer, namely, the inner anti-reflection film layer comprises 8 high-refractive-index layers and 8 low-refractive-index layers which are alternately stacked, wherein the 1 st layer is connected with the outer surface of the substrate.
The corrective lens was colorless in appearance as a whole, and a dark band area was visible at the edge of the lens. The user does not perceive the dark colored zone at the edge of the lens when worn, but will naturally see through the center of the lens when viewed because the visual viewing 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 the vision. Through optical test of the correction type lens, the light transmittance of the center of the lens in the range of 380-.
Comparative example 1
Referring to example 1, except that the materials of the first light blocking layer and the second light blocking layer were different from example 1, a mixture layer of nickel, titanium, and niobium oxide was used, in which the content of nickel was 10 wt%, the content of titanium was 40 wt%, and the content of niobium oxide was 50 wt%. The remainder was conducted in accordance with the structure and production method in example 1 to obtain a comparative lens.
The comparative lens has light transmittance of more than 99% in the central region of the lens within the range of 380-720nm of visible light wavelength and less than 1% in the outer edge (the width from the outer side of the substrate to the central region is 2-3 mm) within the range of 380-720nm of visible light wavelength. However, after the lens wearer, the user can see the annular area of the outer edge of the lens, which has a color impression different from that of the central sight line area, resulting in a poor wearing experience.
Comparative example 2
A contrast lens comprises a substrate with a thickness of 2mm and made of glass. And defining one side of the correction type lens, which is far away from a user in a use state, as the outside, and arranging a light ray blocking layer and an external transparent film layer which are connected on the outer surface of the substrate.
The light blocking layer is annularly distributed on the outer edge of the substrate so as to limit light on the periphery of the substrate from entering the glasses of a user, and the light blocking layer can be an elliptical ring or an inner wavy line, and the outer side of the light blocking layer is overlapped with the outer edge of the substrate. To ensure visual effect, the width of the light blocking layer should be limited, for example, to extend 4mm from the outer edge of the substrate to the central area, so as to leave sufficient light passing space for the central area of the lens.
Specifically, the outer surface of the substrate is sequentially stacked with a first light blocking layer, an outer transparent 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 both a mixture layer of nickel, titanium and niobium oxide, wherein the content of nickel is 5 wt%, the content of titanium is 5 wt%, and the content of niobium oxide is 90 wt%. 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 thin film layer is formed by alternately stacking a high-refractive-index layer and a low-refractive-index layer, specifically, alternately stacking 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 layers 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 layers are respectively 400 angstroms, 150 angstroms and 1000 angstroms.
Through a light ray test, the transmittance of the lens in the central region of the lens in the range of the visible light wavelength 380-. However, after the lens wearer, the user can partially see the annular area of the outer edge of the lens, which has a different color perception from the central viewing area, resulting in a poor wearing experience. Meanwhile, the brightness of the lens image has obvious deviation from the real condition, the whole object image is dark, and the lens image has discomfort and is not beneficial to accurate observation.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. A corrective lens, characterized by: the correcting lens comprises a substrate, wherein one side of the correcting lens, which is far away from a user in a use state, is defined as the outside, and a light ray blocking layer and an external transparent film layer which are connected are arranged on the outer surface of the substrate; an inner transparent film layer is arranged on the inner surface of the substrate; the light barrier layer is the mixture layer of nickel, titanium and niobium oxide, the light barrier layer is cyclic annular distribution and is in the outer edge of substrate to the restriction the peripheral light of substrate gets into user's glasses.
2. Corrective lens according to claim 1, characterized in that: the light blocking layer extends 4-8mm, preferably 6-7mm, from the outer edge of the substrate to the central region.
3. A corrective lens according to claim 1, characterized in that: the light ray blocking layer comprises 1-5 wt% of nickel, 5-10 wt% of titanium and 85-94 wt% of niobium oxide.
4. Corrective lens according to any one of claims 1 to 3, characterized in that: the light blocking layer comprises a first light blocking layer and a second light blocking layer, and is concrete, the first light blocking layer is located between the outer surface of the substrate and the first outer transparent film layer, the first outer transparent film layer is connected to the outer surface of the second light blocking layer, and the second outer transparent film layer and/or the protective layer are connected to the outer surface of the second light blocking layer.
5. Corrective lens according to claim 4, characterized in that: 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.
6. Corrective lens according to claim 5, characterized in that: the first light ray blocking layer and the second light ray blocking layer have light transmittance values smaller than 1% in a visible light spectrum region.
7. Corrective lens according to claim 1, characterized in that: the outer transparency-enhanced thin film layer and the inner transparency-enhanced thin film layer are alternately stacked by 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-enhanced thin film layer and the inner transparency-enhanced thin film layer are 1500-4500 angstroms.
8. Corrective lens according to claim 7, characterized in that: the outer transparency-enhanced thin film layer and the inner transparency-enhanced thin film layer comprise 8 thin films which are sequentially connected from inside to outside, 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 high-refractive-index 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 low-refractive-index layers are respectively 200-600 angstroms, 50-250 angstroms and 600-1100 angstroms; the light transmittance of the external transparent thin film layer and the light transmittance of the internal transparent thin film layer in the range of 380-nm wavelength and 720-nm wavelength of the visible light spectrum region are greater than 99%.
9. A method for preparing a corrective lens according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
s1, cleaning and drying the substrate to obtain a clean substrate;
s2, placing the clean substrate on a jig, feeding the clean substrate into a vacuum coating chamber, and vacuumizing until the vacuum degree in the vacuum chamber reaches 3 x 10-5Starting ion source when the temperature is below Torr, cleaning the surface of the substrate, and making the vacuum degree in the vacuum chamber reach 1.5 x 10-5Controlling the temperature in the vacuum chamber to 50-70 deg.C and the evaporation rate below Torr
Sequentially bombarding materials of the light ray blocking layers, the outer transparent film layer and the inner transparent film layer by adopting an electron gun so as to form the light ray blocking layers and the outer transparent 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 corrective lens, in particular, to maintain a vacuum of 1.5 × 10 in the vacuum chamber-5Controlling the temperature in the vacuum chamber to 50-70 deg.C and the evaporation rate below Torr
And heating the waterproof material by group evaporation, and depositing the waterproof material on the outer surface of the light ray blocking layer in a molecular crystal form after evaporation to form a protective layer.
10. Spectacles comprising corrective lenses according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210426211.6A CN114690440A (en) | 2022-04-22 | 2022-04-22 | Correcting lens and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210426211.6A CN114690440A (en) | 2022-04-22 | 2022-04-22 | Correcting lens and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114690440A true CN114690440A (en) | 2022-07-01 |
Family
ID=82144232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210426211.6A Pending CN114690440A (en) | 2022-04-22 | 2022-04-22 | Correcting lens and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114690440A (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 |
-
2022
- 2022-04-22 CN CN202210426211.6A patent/CN114690440A/en active Pending
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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11199729B2 (en) | Optical article with high reflection in the near infrared region and in the blue light region | |
| JP6965220B2 (en) | Eye lens | |
| US20220043186A1 (en) | Visible Spectrum Anti-Reflective Coatings with Reduced Reflections in Ultraviolet and Infrared Spectral Bands | |
| US6142626A (en) | Chromatic vision correction resin glasses with reduced concave reflection | |
| CN110174717A (en) | A kind of blue light protection optical thin film and its manufacturing method | |
| CN105425418A (en) | Blue light filtering, radiation protection and wear resisting lens and preparation method thereof | |
| US20240230957A1 (en) | Optical lens having an asymmetric mirror | |
| CN109270616B (en) | Multi-valley transmission element and preparation method thereof | |
| US20220269111A1 (en) | User wearable optical article, method for producing and eyewear using the same | |
| CN114690440A (en) | Correcting lens and preparation method thereof | |
| CN113467101A (en) | Double progressive lens and preparation method thereof | |
| JP2021531511A (en) | Eye lens with anti-reflection and electrochromic functions | |
| CN210222398U (en) | Blue-light-proof infrared-resistant coated resin lens | |
| KR101573016B1 (en) | Colored and low-reflective optical lens with multi-layer thin coating, and its preparation method | |
| JPH0532828Y2 (en) | ||
| EP3141936B1 (en) | 3d lens with reduced back reflectance | |
| EP4102265A1 (en) | Optical lens having an antireflection coating reflecting harmful blue light | |
| CN218675560U (en) | Correcting astigmatic lens and glasses | |
| KR101833724B1 (en) | Lenses for amblyopia and diplopia and their manufacturing methodsd | |
| EP4102264A1 (en) | Optical lens having an antireflection coating reflecting harmful blue light and nir radiation | |
| US20240230956A1 (en) | Optical lens having an antireflection coating reflecting blue light | |
| CN206920737U (en) | A kind of peripheral hyperopia defocusing compensation glasses | |
| CN211878218U (en) | Anti-reflection film for goggles lens | |
| CN205787433U (en) | A kind of visional compensation eyeglass | |
| US20210141245A1 (en) | Eyewear having polarizers |
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 |