CN112099245B - Lens capable of improving color contrast and saturation and preparation method thereof - Google Patents
Lens capable of improving color contrast and saturation and preparation method thereof Download PDFInfo
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- CN112099245B CN112099245B CN202011020885.3A CN202011020885A CN112099245B CN 112099245 B CN112099245 B CN 112099245B CN 202011020885 A CN202011020885 A CN 202011020885A CN 112099245 B CN112099245 B CN 112099245B
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- 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
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
- G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection
Abstract
The invention belongs to the technical field of functional lenses, and relates to a lens capable of improving color contrast and saturation and a preparation method thereof. The lens comprises a substrate, a priming layer and a plurality of film layers, wherein the priming layer and the film layers are sequentially arranged on the outer surface of the substrate, the film layers are formed by alternately stacking low refractive index layers and high refractive index layers, and the high and low transmittance difference values of the film layers in blue, green, red and yellow spectral regions are all more than 50%. The lens provided by the invention has larger high and low transmittance difference values in blue, green, red and yellow spectral regions, can simultaneously improve the identification degree and definition of the four colors of blue, green, red and yellow, thereby being capable of improving the visual stereoscopic impression in all directions, can simultaneously meet the requirements of athletes in different sport scenes such as skiing, bicycles, speed skating and the like by adopting the same lens, has universality, finally achieves the purpose of protecting the eyes and the body of the athlete, and is beneficial to improving the performance of competitive sports.
Description
Technical Field
The invention belongs to the technical field of functional lenses, and particularly relates to a lens capable of improving color contrast and saturation and a preparation method thereof.
Background
Weakness is a defect in the perception of color, which manifests itself in a reduced perceptibility of certain colors that can be distinguished by normal humans. There are various types of color weakness including red color weakness, green color weakness, blue color weakness, yellow color weakness, and the like. In contrast to normal individuals, red weakness appears to be insensitive to red light and can be affected by darkening of the red end of the spectrum. Individuals with green amblyopia have a mutated form of the green pigment, which shifts towards the red end of the spectrum, resulting in reduced sensitivity to the green region of the spectrum. Similar to the red tinge, the green tinge is poor in discriminating a slight difference in color tone in red, orange, yellow, and green regions of the spectrum. Red-green weakness is the most common form, which causes many of these hues to shift towards the red end of the colored spectrum. Other individuals with amblyopia are blue and yellow amblyopia, which appear to be insensitive to blue and yellow.
Currently, the ophthalmic industry has not addressed the problem of color weakness well, and typically can only correct visual color defects by wearing a color-weakening lens that can increase insensitive color saturation. Existing tinted lenses are typically made by adding colorants/luminescent materials to the lens film layers to better distinguish between insensitive colors.
In addition, the current color weakness glasses can only carry out visual correction on one insensitive color, solve the problem of single color weakness and cannot meet the use requirements of patients suffering from several color weakness at the same time.
Disclosure of Invention
The invention aims to provide a lens capable of improving color contrast and saturation only through film layer design without adding a coloring agent/luminescent material and a preparation method thereof.
The lens comprises a substrate, a base layer and a plurality of film layers, wherein the base layer and the film layers are sequentially arranged on the outer surface of the substrate, the film layers are formed by alternately stacking low-refractive-index layers and high-refractive-index layers, and the difference values of the high transmittance and the low transmittance of the film layers in blue, green, red and yellow spectral regions are more than 50%.
Further, the difference of the high and low transmittances of the film layers in the blue, green, red and yellow spectral regions is 50-99% independently.
Further, the substrate is selected from any one of an acryl substrate, a polycarbonate substrate, a nylon substrate, a CR-39 substrate, and a glass substrate.
Further, the thickness of the substrate is 0.1-5 mm.
Further, the bottom layer is formed by mixing silicon oxide and aluminum oxide.
Further, the content of silicon oxide in the bottom layer is 55-45 wt% and the content of aluminum oxide is 45-55 wt%. When the content of the silicon oxide and the aluminum oxide in the bottom layer is controlled in the preferable range, the stress of the substrate and the stress of the film layer can be excessively connected, the film is protected from falling off and film cracking, and the hardness and the adhesion degree of the film layer are improved.
Further, the thickness of the bottom layer is 700-900 angstroms.
Further, the low refractive index layer may be a film layer formed of at least one of silicon oxide, a silicon-aluminum mixture, and magnesium fluoride, and particularly preferably a silicon oxide layer.
Further, the high refractive index layer may be a film layer formed of at least one of a titanium oxide layer, zirconium oxide, and tantalum oxide, and particularly preferably a mixture layer of titanium oxide, zirconium oxide, and tantalum oxide. In a particularly preferred embodiment, the content of the titanium oxide in the mixture layer of titanium oxide, zirconium oxide and tantalum oxide is 30-50 wt%, the content of the zirconium oxide is 20-40 wt% and the content of the tantalum oxide is 50-10 wt%, so that not only can the visual effects of blue, green, yellow and red spectrums be enhanced, but also the stress of the thin film layer can be well matched with the stress of the substrate, and the thin film layer can not crack, fall off and the like.
Further, the plurality of film layers comprise 18 films from inside to outside, wherein the thicknesses of the 1 st layer, the 3 rd layer, the 5 th layer, the 7 th layer, the 9 th layer, the 11 th layer, the 13 th layer, the 15 th layer and the 17 th layer are respectively 500-1100 angstroms, 1100-1700 angstroms, 1200-1800 angstroms, 200-800 angstroms, 300-900 angstroms, 1100-1700 angstroms and 900-1500 angstroms, and the thicknesses of the 2 nd layer, the 4 th layer, the 6 th layer, the 8 th layer, the 10 th layer, the 12 th layer, the 14 th layer, the 16 th layer and the 18 th layer are respectively 700-1300 angstroms, 300-900 angstroms, 300-950 angstroms, 300-800 angstroms, 900-1500 angstroms, 200-800 angstroms, 100-400 angstroms, 1600-1050 angstroms.
Furthermore, the lens also comprises a waterproof protective layer arranged on the outer surfaces of the plurality of film layers.
Further, the thickness of the waterproof protective layer is 50-300 angstroms.
The invention also provides a preparation method of the lens capable of improving the color contrast, 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, and vacuumizing until the vacuum degree in the vacuum chamber reaches 5 x 10 -5 Starting ion source when the temperature is below Torr, cleaning the surface of the substrate, and when the vacuum degree in the vacuum chamber reaches 2 x 10 -5 When the temperature is below Torr, the temperature in the vacuum chamber is controlled to 40-60 deg.C, and the evaporation rate is controlled to
Using electronsThe gun bombards the primer layer and the plurality of film layers in sequence to form the primer layer and the plurality of film layers on the outer surface of the substrate in sequence.
Further, the preparation method of the lens capable of improving the color contrast further comprises the step of plating a waterproof protective layer on the outer surfaces of the plurality of film layers, and specifically, the vacuum degree in the vacuum chamber is kept at 2 x 10 -5 Controlling the temperature in the vacuum chamber to 40-60 deg.C and the evaporation rate below Torr
The tungsten boat is adopted to heat the waterproof material, and the waterproof material is evaporated and then deposited on the outer surfaces of the plurality of film layers in an angstrom molecular form to form a waterproof protective layer.
The functional film layers in the lens are alternately arranged by adopting the low refractive index layers and the high refractive index layers, the difference values of the high and low transmittances in the blue, green, yellow and red color areas are simultaneously more than 50% through the layer number and film layer thickness design, so that the identification degrees and the definition of the blue, green, red and yellow colors are simultaneously improved, the visual three-dimensional sense can be comprehensively improved, the requirements of athletes in different sports scenes such as skiing, bicycles, speed skating and the like can be simultaneously met by adopting the same lens, the lens is more universal, the aim of protecting the eyes and the body of the athletes is finally fulfilled, and meanwhile, the competitive sports score is favorably improved.
Drawings
FIG. 1 is a graph showing the results of light transmittance of the lens obtained in example 1.
Detailed Description
The definitions of some of the terms used in the present invention are given below, and other non-mentioned terms have definitions and meanings well known in the art:
substrate: the lens can be a plane lens or a lens with a certain radian.
Outer surface: the lens is the surface directly receiving the light source in the use state.
Among the several membrane layers: the 1 st layer is a thin film layer close to the bottom layer.
The present invention will be described in detail below by way of examples.
Example 1
S1, cleaning and drying the acrylic substrate with the thickness of 1mm to obtain a clean acrylic substrate;
s2, placing the clean acrylic substrate on a jig, feeding the clean acrylic substrate into a vacuum coating chamber, and vacuumizing the vacuum coating chamber until the vacuum degree in the vacuum chamber reaches 5 x 10 -5 When the pressure is below Torr, starting an ion source to clean the surface of the acrylic substrate, and when the vacuum degree in the vacuum chamber reaches 2 x 10 -5 Controlling the temperature in the vacuum chamber to 40-60 deg.C and the evaporation rate below Torr
Sequentially bombarding the priming layer and the plurality of film layer materials by adopting an electron gun so as to sequentially form the priming layer and the plurality of film layers on the outer surface of the substrate;
s3, keeping the vacuum degree in the vacuum chamber at 2 x 10 -5 Controlling the temperature in the vacuum chamber to 40-60 deg.C and the evaporation rate below Torr
The tungsten boat is adopted to heat the waterproof material, and the waterproof material is evaporated and then deposited on the outer surfaces of the plurality of film layers in an angstrom molecular form to form a waterproof protective layer.
The obtained lens comprises an acrylic substrate, and a priming layer, a plurality of film layers and a waterproof protective layer which are sequentially arranged on the outer surface of the acrylic substrate. Wherein the bottom layer is a composite layer of 54 wt% and 46 wt% of silicon oxide and aluminum oxide and has a thickness of 800 angstroms. The film layers comprise 18 films from inside to outside, wherein the 1 st layer, the 3 rd layer, the 5 th layer, the 7 th layer, the 9 th layer, the 11 th layer, the 13 th layer, the 15 th layer and the 17 th layer are silicon oxide layers with the thicknesses of 800 angstroms, 1400 angstroms, 1500 angstroms, 500 angstroms, 600 angstroms, 1350 angstroms and 1200 angstroms respectively, and the 2 nd layer, the 4 th layer, the 6 th layer, the 8 th layer, the 10 th layer, the 12 th layer, the 14 th layer, the 16 th layer and the 18 th layer are mixture layers of titanium oxide, zirconium oxide and tantalum oxide with the thicknesses of 1000 angstroms, 600 angstroms, 550 angstroms, 1200 angstroms, 500 angstroms, 250 angstroms, 1350 angstroms and 700 angstroms respectively; the titanium oxide content, the zirconium oxide content and the tantalum oxide content in each of the 2 nd, 4 th, 6 th, 8 th, 10 th, 12 th, 14 th, 16 th and 18 th layers were 40 wt%, 30 wt%, and 30 wt%. The thickness of the waterproof protective layer is 50 angstroms.
The light transmittance results of the obtained lens are shown in table 1 and fig. 1. As can be seen from Table 1 and FIG. 1, the highest transmittance of the lens in the blue spectral region (380nm-480nm) is 95.5911% (at 430nm), the lowest transmittance is 8.6298% (at 380nm), the highest transmittance in the green spectral region (480nm-580nm) is 96.0751% (at 531nm), the lowest transmittance is 24.4431% (at 576nm), the highest transmittance in the red spectral region (680nm-780nm) is 98.9388% (at 701nm), the lowest transmittance is 11.1575% (at 774nm), the highest transmittance in the yellow spectral region (580nm-680nm) is 99.9437% (at 617nm), the lowest transmittance is 29.9373% (at 658nm), namely, the difference of high and low transmittance in blue, green, red and yellow spectral regions is 86.9613%, 71.6320%, 87.7813% and 70.0064%, respectively, the identification and definition of the four colors of blue, green, red and yellow can be simultaneously improved.
TABLE 1
Example 2
S1, cleaning and drying the acrylic substrate with the thickness of 1mm to obtain a clean acrylic substrate;
s2, placing the clean acrylic substrate on a jigThe vacuum coating is sent into a vacuum coating chamber and vacuumized, and when the vacuum degree in the vacuum chamber reaches 5 x 10 -5 When the pressure is below Torr, starting an ion source to clean the surface of the acrylic substrate, and when the vacuum degree in the vacuum chamber reaches 2 x 10 -5 Controlling the temperature in the vacuum chamber to 40-60 deg.C and the evaporation rate below Torr
Sequentially bombarding the priming layer and the plurality of film layer materials by adopting an electron gun so as to sequentially form the priming layer and the plurality of film layers on the outer surface of the substrate;
s3, keeping the vacuum degree in the vacuum chamber at 2 x 10 -5 Controlling the temperature in the vacuum chamber to 40-60 deg.C and the evaporation rate below Torr
The tungsten boat is adopted to heat the waterproof material, and the waterproof material is evaporated and then deposited on the outer surfaces of the plurality of film layers in an angstrom molecular form to form a waterproof protective layer.
The obtained lens comprises an acrylic substrate, and a priming layer, a plurality of film layers and a waterproof protective layer which are sequentially arranged on the outer surface of the acrylic substrate. Wherein the bottom layer is a composite layer of 53 wt% and 47 wt% of silicon oxide and aluminum oxide and has a thickness of 700 angstroms. The film layers comprise 18 films from inside to outside, wherein the 1 st layer, the 3 rd layer, the 5 th layer, the 7 th layer, the 9 th layer, the 11 th layer, the 13 th layer, the 15 th layer and the 17 th layer are silicon oxide layers with the thicknesses of 700 angstroms, 1100 angstroms, 1200 angstroms, 200 angstroms, 300 angstroms, 1100 angstroms and 900 angstroms respectively, and the 2 nd layer, the 4 th layer, the 6 th layer, the 8 th layer, the 10 th layer, the 12 th layer, the 14 th layer, the 16 th layer and the 18 th layer are mixture layers of titanium oxide, zirconium oxide and tantalum oxide with the thicknesses of 1300 angstroms, 900 angstroms, 950 angstroms, 800 angstroms, 1500 angstroms, 800 angstroms, 400 angstroms, 1600 angstroms and 700 angstroms respectively; the titanium oxide content, the zirconium oxide content and the tantalum oxide content in each of the 2 nd, 4 th, 6 th, 8 th, 10 th, 12 th, 14 th, 16 th and 18 th layers were 30 wt%, 20 wt%, and 50 wt%. The thickness of the waterproof protective layer is 50 angstroms.
The light transmittance results of the obtained lens showed that the maximum transmittance of the lens in the blue spectral region (380nm-480nm) was 90.80% (at 440nm), the minimum transmittance was 10.30% (at 390nm), the maximum transmittance in the green spectral region (480nm-580nm) was 93.08% (at 540nm), the minimum transmittance was 30.49% (at 575nm), the maximum transmittance in the red spectral region (680nm-780nm) was 92.66% (at 710nm), the minimum transmittance was 21.34% (at 768nm), the maximum transmittance in the yellow spectral region (580nm-680nm) was 93.77% (at 620nm), the minimum transmittance was 33.22% (at 660nm), that is, the difference in the high and low transmittances in the blue, green, red and yellow spectral regions was 80.50%, 62.59%, 71.32% and 60.55%, respectively, and the blue, green, red and yellow spectral regions could be simultaneously improved, The recognizability and clarity of the four colors red and yellow.
Example 3
S1, cleaning and drying the acrylic substrate with the thickness of 1mm to obtain a clean acrylic substrate;
s2, placing the clean acrylic substrate on a jig, feeding the clean acrylic substrate into a vacuum coating chamber, and vacuumizing the vacuum coating chamber until the vacuum degree in the vacuum chamber reaches 5 x 10 -5 When the pressure is below Torr, starting an ion source to clean the surface of the acrylic substrate, and when the vacuum degree in the vacuum chamber reaches 2 x 10 -5 Controlling the temperature in the vacuum chamber to 40-60 deg.C and the evaporation rate below Torr
Sequentially bombarding the priming layer and the plurality of film layer materials by adopting an electron gun so as to sequentially form the priming layer and the plurality of film layers on the outer surface of the substrate;
s3, keeping the vacuum degree in the vacuum chamber at 2 x 10 -5 Controlling the temperature in the vacuum chamber to 40-60 deg.C and the evaporation rate below Torr
The tungsten boat is adopted to heat the waterproof material, and the waterproof material is evaporated and then deposited on the outer surfaces of the plurality of film layers in an angstrom-level molecular form to form a waterproof protective layer.
The obtained lens comprises an acrylic substrate, and a priming layer, a plurality of film layers and a waterproof protective layer which are sequentially arranged on the outer surface of the acrylic substrate. Wherein the bottom layer is a composite layer of silicon oxide and aluminum oxide in an amount of 52 wt% and 48 wt% and has a thickness of 900 angstroms. The film layers comprise 18 films from inside to outside, wherein the 1 st layer, the 3 rd layer, the 5 th layer, the 7 th layer, the 9 th layer, the 11 th layer, the 13 th layer, the 15 th layer and the 17 th layer are silicon oxide layers with the thicknesses of 900 angstroms, 1700 angstroms, 1800 angstroms, 800 angstroms, 900 angstroms, 1700 angstroms and 1500 angstroms respectively, the 2 nd layer, the 4 th layer, the 6 th layer, the 8 th layer, the 10 th layer, the 12 th layer, the 14 th layer, the 16 th layer and the 18 th layer are mixture layers of titanium oxide, zirconium oxide and tantalum oxide with the thicknesses of 700 angstroms, 300 angstroms, 900 angstroms, 200 angstroms, 100 angstroms, 1000 angstroms and 350 angstroms respectively; the titanium oxide content, the zirconium oxide content and the tantalum oxide content in each of the 2 nd, 4 th, 6 th, 8 th, 10 th, 12 th, 14 th, 16 th and 18 th layers were 50 wt%, 20 wt%, and 30 wt%. The thickness of the waterproof protective layer is 50 angstroms.
The light transmission results of the obtained lens show that the maximum transmittance of the lens in the blue spectral region (380nm-480nm) is 88.49% (at 435nm), the minimum transmittance is 20.67% (at 385nm), the maximum transmittance in the green spectral region (480nm-580nm) is 90.17% (at 525nm), the minimum transmittance is 36.78% (at 572nm), the maximum transmittance in the red spectral region (680nm-780nm) is 90.38% (at 715nm), the minimum transmittance is 30.67% (at 770nm), the maximum transmittance in the yellow spectral region (580nm-680nm) is 91.64% (at 605nm), the minimum transmittance is 32.48% (at 670nm), i.e., the difference between the high and low transmittances in the blue, green, red and yellow spectral regions is 67.82%, 55.39%, 59.71% and 59.16%, and the blue, green and yellow spectral regions can be simultaneously improved, The recognizability and clarity of the four colors red and yellow.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that those skilled in the art may make variations, modifications, substitutions and alterations within the scope of the present invention without departing from the spirit and scope of the present invention.
Claims (8)
1. The lens capable of improving the color contrast and the saturation is characterized by comprising a substrate, a priming layer and a plurality of film layers, wherein the priming layer and the film layers are sequentially arranged on the outer surface of the substrate, the priming layer is formed by mixing silicon oxide and aluminum oxide, the content of the silicon oxide in the priming layer is 55-45 wt%, and the content of the aluminum oxide in the priming layer is 45-55 wt%; the film layers are formed by alternately stacking low-refractive-index layers and high-refractive-index layers, and the difference values of the high and low transmittances of the film layers in blue, green, red and yellow spectral regions are all more than 50%; the substrate is selected from any one of an acrylic substrate, a polycarbonate substrate, a nylon substrate, a CR-39 substrate and a glass substrate; the low-refractive-index layer is a silicon oxide layer, and the high-refractive-index layer is a mixture layer of titanium oxide, zirconium oxide and tantalum oxide; the content of titanium oxide in the mixture layer of titanium oxide, zirconium oxide and tantalum oxide is 30-50 wt%, the content of zirconium oxide is 20-40 wt% and the content of tantalum oxide is 50-10 wt%; the film layers comprise 18 thin films from inside to outside, the first layer 1, the second layer 3, the second layer 5, the second layer 7, the second layer 9, the third layer 11, the third layer 13, the fourth layer 15 and the fourth layer 17 are silicon oxide layers with the thicknesses of 500-1100, 1100-1700, 1200-1800, 200-800, 300-900, 1100-1700 and 900-1500, the second layer 2, the fourth layer 4, the fourth layer 6, the third layer 8, the fourth layer 10, the fourth layer 12, the fourth layer 14, the fourth layer 16 and the fourth layer 18 are mixed layers of titanium oxide, zirconium oxide and tantalum oxide with the thicknesses of 700-1300, 300-900, 300-950, 300-800, 900-800, 200-800, 100-400, 1000-1600-180.
2. The lens capable of improving color contrast and saturation according to claim 1, wherein the difference between the high and low transmission of the film layers in the blue, green, red and yellow spectral regions is 50% -99% independently.
3. The lens capable of enhancing color contrast and saturation according to claim 1, wherein said substrate has a thickness of 0.1-5 mm.
4. The lens of claim 1, wherein the primer layer has a thickness of 700 and 900 angstroms.
5. The lens for improving color contrast and saturation according to any one of claims 1 to 4, further comprising a waterproof protective layer disposed on the outer surface of the plurality of layers.
6. The lens capable of improving color contrast and saturation according to claim 5, wherein the thickness of the waterproof protective layer is 50-300 angstroms.
7. A method of manufacturing a lens capable of improving colour contrast and saturation according to any one of claims 1 to 6, characterised in that it comprises the steps of:
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 5 x 10 -5 Starting ion source when the temperature is below Torr, cleaning the surface of the substrate, and when the vacuum degree in the vacuum chamber reaches 2 x 10 - 5 When the temperature is below Torr, the temperature in the vacuum chamber is controlled to 40-60 deg.C, and the evaporation rate is controlled to
And sequentially bombarding the priming layer and the plurality of film layer materials by adopting an electron gun so as to sequentially form the priming layer and the plurality of film layers on the outer surface of the substrate.
8. The method of claim 7 for making a lens capable of improving color contrast and saturation, which comprisesCharacterized in that the method further comprises the step of coating a waterproof protective layer on the outer surfaces of the plurality of film layers, and particularly, the vacuum degree in the vacuum chamber is kept at 2 x 10 -5 Controlling the temperature in the vacuum chamber to 40-60 deg.C and the evaporation rate below Torr
The tungsten boat is adopted to heat the waterproof material, and the waterproof material is evaporated and then deposited on the outer surfaces of the plurality of film layers in an angstrom molecular form to form a waterproof protective layer.
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