CN220752450U - Heat-insulating color-changing lens - Google Patents
Heat-insulating color-changing lens Download PDFInfo
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- CN220752450U CN220752450U CN202322414658.4U CN202322414658U CN220752450U CN 220752450 U CN220752450 U CN 220752450U CN 202322414658 U CN202322414658 U CN 202322414658U CN 220752450 U CN220752450 U CN 220752450U
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- color
- antireflection film
- film
- heat
- changing
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- 239000000463 material Substances 0.000 claims abstract description 27
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 239000011241 protective layer Substances 0.000 claims abstract description 12
- 238000002834 transmittance Methods 0.000 claims description 29
- 239000010410 layer Substances 0.000 claims description 16
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 24
- 229910052709 silver Inorganic materials 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- -1 silver halide Chemical class 0.000 description 6
- 230000003595 spectral effect Effects 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- 239000005751 Copper oxide Substances 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 229910000431 copper oxide Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The utility model discloses a heat-insulating color-changing lens, which comprises a protective layer, a heat-insulating film, a color-changing substrate, an antireflection film and a protective layer which are sequentially arranged from outside to the eye direction, wherein the heat-insulating film can be used for resisting visible light and reflecting infrared light, and meanwhile, ultraviolet part enters the color-changing substrate; the antireflection film is used for antireflection of visible light, blue light reflection and ultraviolet light reflection; the heat insulation film comprises a band-pass antireflection film and an infrared unilateral cut-off antireflection film; the antireflection film comprises a band-pass antireflection film and a short-wave single-side cut-off antireflection film; the band-pass antireflection film, the short-wave single-side-cut antireflection film and the infrared single-side-cut antireflection film are all multilayer dielectric films formed by alternately combining high-refractive-index materials and low-refractive-index materials. According to the utility model, the heat insulation film is additionally arranged to reflect visible light and infrared light, heat generated by the infrared light is isolated, the temperature of the color-changing substrate is reduced, meanwhile, ultraviolet light enters the color-changing substrate to cause the color change of the lens, and the depth of color change under a high-temperature environment is ensured to be deep.
Description
Technical Field
The utility model relates to a lens, in particular to a heat-insulating color-changing lens.
Background
The photochromic lens is manufactured according to a photochromic principle, wherein the photochromic refers to the phenomenon that the optical properties of a lens material are reversibly changed under the irradiation of ultraviolet rays, the lens can be darkened rapidly under the irradiation of the light rays and the ultraviolet rays, strong light is blocked, the ultraviolet rays are absorbed, and the visible light is neutral absorbed; when the lens returns to the dark place, the colorless and transparent state can be quickly recovered, and the transmittance of the lens is ensured. The color-changing lens can filter ultraviolet rays of too-eye light, reduce the intensity of light irradiated to eyes, enable a wearer to look more comfortably outdoors, simultaneously obstruct the ultraviolet rays, and ensure the eye health of the wearer.
The color-changing lens mainly comprises microcrystal grains containing color-changing factors silver halide and copper oxide. When the strong light irradiates, the silver halide is decomposed into silver and bromine, and the decomposed silver tiny crystal grains make the lens appear dark brown; when the light becomes dark, silver and halogen are catalyzed by the copper oxide to regenerate silver halide, and the color of the lens becomes light again. The color-changing lens is mainly divided into substrate color change and film layer color change. The color change of the substrate is that the color change agent is doped in the monomer raw material, and the whole lens is filled with the color change agent; its advantages are long colour-changing time and high resistance to high temp. Disadvantages: the intermediate and edge colors of the height power lens will be slightly different. The edge thickness and the center thickness of the lens are completely different, so that the color of the lens can deviate; in addition, after a period of use, the base color appears, and the visual experience is affected; and meanwhile, the color-changing product lines are fewer, and the refractive indexes are mainly concentrated at 1.56 and 1.60. The single-layer film is a thin color-changing agent sprayed on the surface of the lens, and is characterized in that the color of the bottom is shallow and is close to bottomless, and the spin-coating process type film is also called spin-coating process type film. Has the advantages of quick and uniform color change; the disadvantage is that the color change time is short, especially at high temperature, and the color is not easy to change. In addition, in order to increase the color change speed, the expansion coefficients of the color change film and other functional film layers are different, so that the film is cracked in long-term temperature change (indoor and outdoor switching), and the service life is affected, generally about 1 year. The double-sided film is prepared by soaking the lens in the color-changing liquid medicine, and the color-changing layers are added on the inner and outer film layers, so that the color change is uniform. The color change is faster and uniform; the disadvantage is the poor film adhesion.
The color-changing lenses are greatly affected by temperature, namely, under the same condition, the color of the color-changing lenses gradually lightens along with the temperature rise; conversely, when the temperature is lowered, the color-changing lens will slowly deepen. When the temperature is higher, the valence electrons around the Ag atoms are at a high energy level and are easily taken away to form Ag+ and halogen atoms form halogen ions, ag+ and halogen ions easily form silver halide, and the color of the lens is lightened. The phenomenon that the color change depth of the color change lens is shallow under the high-temperature weather condition is common, and the problem is not completely solved by the color change lens on the market at present. Accordingly, development of a lens which can withstand high temperatures and which is still deeply discolored under high temperature environments has been desired.
Disclosure of Invention
The utility model aims to: the utility model aims to provide a heat-insulating color-changing lens which can isolate most of infrared rays generating heat, protect a color-changing substrate, realize deeper color-changing depth in a high-temperature environment and solve the problem of shallow color-changing depth in a high-temperature weather condition.
The technical scheme is as follows: the utility model comprises a protective layer, a heat insulation film, a color-changing substrate, an antireflection film and a protective layer which are sequentially arranged from outside to the eye direction, wherein the heat insulation film can be used for antireflection visible light and reflecting infrared light, and meanwhile, ultraviolet part enters the color-changing substrate; the antireflection film is used for antireflection of visible light, blue light reflection and ultraviolet light reflection; the heat insulation film comprises a band-pass antireflection film and an infrared unilateral cut-off antireflection film; the antireflection film comprises a band-pass antireflection film and a short-wave single-side cut-off antireflection film.
The band-pass antireflection film is a multilayer dielectric film formed by alternately combining high-refractive index materials and low-refractive index materials, the short-wavelength cutoff frequency is 400 nanometers, the infrared cutoff frequency is 780 nanometers, the passband range is 400-780 nanometers, the average transmittance of the center of the passband is more than 90%, the light wave transmittance of less than 400 nanometers and more than 780 nanometers is less than 0.1%, and the number of the film layers is more than or equal to 5.
The infrared unilateral cut-off antireflection film is a multilayer dielectric film formed by alternately combining high-refractive index materials and low-refractive index materials, the infrared cut-off frequency is 780 nanometers, the average light wave transmittance of light waves smaller than 780 nanometers is larger than 90%, the light wave transmittance of light waves larger than 780 nanometers is smaller than 0.1%, and the number of film layers is larger than or equal to 5.
The shortwave unilateral cut-off antireflection film is a multilayer dielectric film formed by alternately combining high-refractive index materials and low-refractive index materials, the shortwave cut-off frequency is 400 nanometers, the light wave transmittance of less than 400 nanometers of the shortwave cut-off frequency is less than 0.1 percent, the light wave average transmittance of more than 400 nanometers is more than 90 percent, and the number of film layers is more than or equal to 5.
The low refractive index material is SiO 2 。
The heat insulation film can insulate heat generated by infrared rays and reduce the temperature of the color-changing substrate.
The color-changing substrate is a lens containing a color-changing factor.
The protective layer can protect the front surface and the rear surface of the lens and is hydrophobic, so that the surface of the lens is not easy to adhere to water.
The beneficial effects are that: according to the utility model, the heat insulation film is additionally arranged to reflect visible light and infrared light, heat generated by the infrared light is isolated, the temperature of the color-changing substrate is reduced, meanwhile, ultraviolet light enters the color-changing substrate to cause the color change of the lens, and the depth of color change under a high-temperature environment is ensured to be deep.
Drawings
FIG. 1 is a schematic view of a lens of the present utility model;
FIG. 2 is a graph of spectral transmittance of a thermal barrier film of the present utility model; FIG. 2 (a) is a graph of spectral transmittance of a bandpass antireflection film; FIG. 2 (b) is a graph showing the spectral transmittance of an infrared single-side cut-off antireflection film;
FIG. 3 is a graph of spectral transmittance of an antireflection film of the present utility model; FIG. 3 (a) is a graph of spectral transmittance of a bandpass antireflection film; fig. 3 (b) shows the spectral transmittance curve of the short-wave single-side cut-off antireflection film.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in figure 1, the color-changing lens comprises a protective layer 1, a heat insulation film 2, a color-changing substrate 3, an antireflection film 4 and the protective layer 1 which are sequentially arranged from outside to the direction of eyes, wherein the protective layers 1 on two sides can protect the front surface and the rear surface of the lens and are hydrophobic so that the surface of the lens is not easy to adhere to water; the heat insulation film 2 can be used for enhancing the reflection of visible light and reflecting infrared light, isolating (reflecting) heat generated by the infrared light, reducing the temperature of the color-changing substrate 3, enabling ultraviolet light to enter the color-changing substrate 3 to cause color change of the lens, and ensuring deep color change depth in a high-temperature environment; the color-changing substrate 3 is a lens containing a color-changing factor; the antireflection film 4 is for antireflection of visible light, reflection of part of blue light and ultraviolet light. After sunlight passes through the heat-insulating color-changing lens, the spectrum range only keeps the visible light part, and ultraviolet and infrared are absorbed or filtered.
As shown in fig. 2, the heat insulating film 2 is divided into two types, namely a band-pass antireflection film and an infrared single-side cut-off antireflection film. As shown in fig. 2 (a), the bandpass antireflection film is a multilayer dielectric film formed by alternately combining high-refractive index materials and low-refractive index materials, the short-wavelength cutoff frequency is 400 nm, the infrared cutoff frequency is 780 nm, the passband range is 400-780 nm, the average transmittance of the center of the passband is more than 90%, the light wave transmittance of less than 400 nm and more than 780 nm is less than 0.1%, and the number of film layers is more than or equal to 5. As shown in fig. 2 (b), the infrared single-side cut-off antireflection film is a multilayer dielectric film formed by alternately combining materials with high and low refractive indexes, the infrared cut-off frequency is 780 nm, the average light wave transmittance of less than 780 nm is more than 90%, the light wave transmittance of more than 780 nm is less than 0.1%, and the number of film layers is more than or equal to 5.
As shown in fig. 3, the antireflection film 4 is divided into two types, namely a band pass antireflection film and a short-wave single-side cut-off antireflection film, and the band pass antireflection film is identical to the band pass antireflection film of the heat insulation film 2, as shown in fig. 3 (a). As shown in fig. 3 (b), the shortwave single-side cut-off antireflection film is a multilayer dielectric film formed by alternately combining high-refractive index materials and low-refractive index materials, the shortwave cut-off frequency is 400 nm, the light wave transmittance of less than 400 nm is less than 0.1%, the average light wave transmittance of more than 400 nm is more than 90%, and the number of film layers is more than or equal to 5. The high refractive index material is ZrO 2 、Ta 2 O 5 、HfO 2 、TiO 2 Etc.; the low refractive index material is SiO 2 。
Examples
SiO is selected as a coating material 2 For low refractive index materials, zrO is selected for high refractive index materials 2 And TiO 2 . The protective layer is a hard layer containing Na, the heat insulating film 2 selects a bandpass antireflection film (the short wavelength cutoff frequency is 400 nanometers, the infrared cutoff frequency is 780 nanometers, the passband range is 400-780 nanometers, the average transmittance of the center of the passband is more than 90 percent, the light wave transmittance of less than 400 nanometers and more than 780 nanometers is less than 0.1 percent, the number of the film layers is 20), the antireflection film 4 is a shortwave single-side cut-off antireflection film (the shortwave cut-off frequency is 400 nanometers, the light wave transmittance of less than 400 nanometers of the shortwave cut-off frequency is less than 0.1 percent, the average light wave transmittance of more than 400 nanometers is more than 90 percent, and the number of the film layers is 16).
According to the utility model, the heat insulation film is additionally arranged to reflect visible light and infrared light, heat generated by the infrared light is isolated, the temperature of the color-changing substrate is reduced, meanwhile, ultraviolet light enters the color-changing substrate to cause the color change of the lens, and the depth of color change under a high-temperature environment is ensured to be deep.
Claims (8)
1. The heat-insulating color-changing lens is characterized by comprising a protective layer, a heat-insulating film, a color-changing substrate, an antireflection film and a protective layer which are sequentially arranged from outside to the eye direction, wherein the heat-insulating film can be used for resisting visible light and reflecting infrared light, and meanwhile, ultraviolet part enters the color-changing substrate; the antireflection film is used for antireflection of visible light, blue light reflection and ultraviolet light reflection; the heat insulation film comprises a band-pass antireflection film and an infrared unilateral cut-off antireflection film; the antireflection film comprises a band-pass antireflection film and a short-wave single-side cut-off antireflection film.
2. The heat-insulating color-changing lens according to claim 1, wherein the band-pass antireflection film is a multilayer dielectric film formed by alternately combining high-refractive index materials and low-refractive index materials, the short-wavelength cutoff frequency is 400 nm, the infrared cutoff frequency is 780 nm, the passband range is 400-780 nm, the average transmittance of the center of the passband is more than 90%, the light wave transmittance of less than 400 nm and more than 780 nm is less than 0.1%, and the number of the film layers is more than or equal to 5.
3. The heat-insulating color-changing lens according to claim 1, wherein the infrared unilateral cut-off antireflection film is a multilayer dielectric film formed by alternately combining high-refractive index materials and low-refractive index materials, the infrared cut-off frequency is 780 nanometers, the average light wave transmittance of less than 780 nanometers is more than 90%, the light wave transmittance of more than 780 nanometers is less than 0.1%, and the number of film layers is more than or equal to 5.
4. The heat-insulating color-changing lens according to claim 1, wherein the shortwave unilateral cut-off antireflection film is a multilayer dielectric film formed by alternately combining high-refractive index materials and low-refractive index materials, the shortwave cut-off frequency is 400 nanometers, the light wave transmittance of less than 400 nanometers is less than 0.1%, the average light wave transmittance of more than 400 nanometers is more than 90%, and the number of film layers is more than or equal to 5.
5. The thermochromic lens of claim 4 wherein the low refractive index material is SiO 2 。
6. The thermally insulating color-changing lens according to claim 1, wherein the heat insulating film is capable of insulating heat generated by infrared rays.
7. The thermally insulating color shifting lens of claim 1, wherein the color shifting substrate is a lens comprising a color shifting factor.
8. The thermally insulating color-changing lens according to claim 1, wherein the protective layer is capable of protecting the front and rear surfaces of the lens and is hydrophobic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322414658.4U CN220752450U (en) | 2023-09-06 | 2023-09-06 | Heat-insulating color-changing lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322414658.4U CN220752450U (en) | 2023-09-06 | 2023-09-06 | Heat-insulating color-changing lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220752450U true CN220752450U (en) | 2024-04-09 |
Family
ID=90552124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322414658.4U Active CN220752450U (en) | 2023-09-06 | 2023-09-06 | Heat-insulating color-changing lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220752450U (en) |
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2023
- 2023-09-06 CN CN202322414658.4U patent/CN220752450U/en active Active
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