WO1997028467A1 - Transparent photochromic article including an anti-reflection surface coating - Google Patents
Transparent photochromic article including an anti-reflection surface coating Download PDFInfo
- Publication number
- WO1997028467A1 WO1997028467A1 PCT/AU1997/000051 AU9700051W WO9728467A1 WO 1997028467 A1 WO1997028467 A1 WO 1997028467A1 AU 9700051 W AU9700051 W AU 9700051W WO 9728467 A1 WO9728467 A1 WO 9728467A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- approximately
- optical thickness
- photochromic article
- article according
- transparent
- Prior art date
Links
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 19
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
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- 229910001635 magnesium fluoride Inorganic materials 0.000 claims description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 3
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- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
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- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical class FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 2
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(IV) oxide Inorganic materials O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
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- 229920000642 polymer Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
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- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
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- 229910052759 nickel Inorganic materials 0.000 claims 1
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
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- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
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- BCHZICNRHXRCHY-UHFFFAOYSA-N 2h-oxazine Chemical compound N1OC=CC=C1 BCHZICNRHXRCHY-UHFFFAOYSA-N 0.000 description 2
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- 229910052786 argon Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- SYFOAKAXGNMQAX-UHFFFAOYSA-N bis(prop-2-enyl) carbonate;2-(2-hydroxyethoxy)ethanol Chemical compound OCCOCCO.C=CCOC(=O)OCC=C SYFOAKAXGNMQAX-UHFFFAOYSA-N 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
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- 230000000694 effects Effects 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
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- 238000002834 transmittance Methods 0.000 description 2
- 238000007738 vacuum evaporation Methods 0.000 description 2
- JXHDOXOWSLTKDT-UHFFFAOYSA-N 2,2-bis(4-methoxyphenyl)-5,6-dimethyl-3,4a-dihydrobenzo[f]chromene Chemical compound C1=CC(OC)=CC=C1C1(C=2C=CC(OC)=CC=2)C=C2C3=CC=CC=C3C(C)=C(C)C2OC1 JXHDOXOWSLTKDT-UHFFFAOYSA-N 0.000 description 1
- JPRAEFWJEBKFCB-UHFFFAOYSA-N 2-nitro-9h-fluoren-3-amine Chemical compound C1=CC=C2C(C=C(C(=C3)[N+]([O-])=O)N)=C3CC2=C1 JPRAEFWJEBKFCB-UHFFFAOYSA-N 0.000 description 1
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- SDDAKNLNDQKPHE-UHFFFAOYSA-N 3',3'-dimethyl-1'-(2-methylpropyl)-6-piperidin-1-ylspiro[benzo[f][1,4]benzoxazine-3,2'-indole] Chemical compound CC(C)CN1C2=CC=CC=C2C(C)(C)C1(C=NC1=C2C=CC=CC2=2)OC1=CC=2N1CCCCC1 SDDAKNLNDQKPHE-UHFFFAOYSA-N 0.000 description 1
- FENQIFUKSPOVFJ-UHFFFAOYSA-N 3',3'-dimethyl-1'-(2-methylpropyl)spiro[benzo[f][1,4]benzoxazine-3,2'-indole] Chemical compound C1=CC=CC2=C(N=CC3(C(C)(C)C4=CC=CC=C4N3CC(C)C)O3)C3=CC=C21 FENQIFUKSPOVFJ-UHFFFAOYSA-N 0.000 description 1
- RPETUZOFZUKMCP-UHFFFAOYSA-N 3,3-bis(4-methoxyphenyl)benzo[f]chromene Chemical compound C1=CC(OC)=CC=C1C1(C=2C=CC(OC)=CC=2)C=CC2=C3C=CC=CC3=CC=C2O1 RPETUZOFZUKMCP-UHFFFAOYSA-N 0.000 description 1
- XMIOCDZWGCXLIO-UHFFFAOYSA-N 3h-benzo[f][1,4]benzoxazine Chemical compound C1=CC=CC2=C(N=CCO3)C3=CC=C21 XMIOCDZWGCXLIO-UHFFFAOYSA-N 0.000 description 1
- VCMLCMCXCRBSQO-UHFFFAOYSA-N 3h-benzo[f]chromene Chemical compound C1=CC=CC2=C(C=CCO3)C3=CC=C21 VCMLCMCXCRBSQO-UHFFFAOYSA-N 0.000 description 1
- CGBFILPOMRIBFX-UHFFFAOYSA-N 4-[3',3'-dimethyl-1'-(2-methylpropyl)spiro[benzo[f][1,4]benzoxazine-3,2'-indole]-6-yl]-n,n-diethylaniline Chemical compound C1=CC(N(CC)CC)=CC=C1C(C1=CC=CC=C11)=CC2=C1N=CC1(C(C3=CC=CC=C3N1CC(C)C)(C)C)O2 CGBFILPOMRIBFX-UHFFFAOYSA-N 0.000 description 1
- JPUIWORCIIRWJP-UHFFFAOYSA-N 4-[3,3-bis(4-methoxyphenyl)benzo[f]chromen-6-yl]morpholine Chemical compound C1=CC(OC)=CC=C1C1(C=2C=CC(OC)=CC=2)C=CC2=C3C=CC=CC3=C(N3CCOCC3)C=C2O1 JPUIWORCIIRWJP-UHFFFAOYSA-N 0.000 description 1
- TUZVQTLSJYAYJK-UHFFFAOYSA-N 5-(2-chlorophenyl)-2,4-diphenyl-1h-imidazole Chemical compound ClC1=CC=CC=C1C1=C(C=2C=CC=CC=2)N=C(C=2C=CC=CC=2)N1 TUZVQTLSJYAYJK-UHFFFAOYSA-N 0.000 description 1
- KYNSBQPICQTCGU-UHFFFAOYSA-N Benzopyrane Chemical compound C1=CC=C2C=CCOC2=C1 KYNSBQPICQTCGU-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000675108 Citrus tangerina Species 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229910002637 Pr6O11 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 239000006117 anti-reflective coating Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 150000008371 chromenes Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000005331 crown glasses (windows) Substances 0.000 description 1
- VDBXLXRWMYNMHL-UHFFFAOYSA-N decanediamide Chemical compound NC(=O)CCCCCCCCC(N)=O VDBXLXRWMYNMHL-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- 229920001519 homopolymer Polymers 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000013532 laser treatment Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 150000004893 oxazines Chemical group 0.000 description 1
- 150000004880 oxines Chemical class 0.000 description 1
- 230000003711 photoprotective effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000307 polymer substrate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- PHRAGNAKSJLKAP-UHFFFAOYSA-N spiro[1,3-dihydronaphtho[6,7-f]benzimidazole-2,1'-cyclohexane]-6,11-dione Chemical compound C1=C2C=C3C(=O)C=CC=C3C=C2C(=O)C(N2)=C1NC12CCCCC1 PHRAGNAKSJLKAP-UHFFFAOYSA-N 0.000 description 1
- KEBGPKSJAISGLV-UHFFFAOYSA-N spiro[benzo[f][1,4]benzoxazine-3,2'-indole] Chemical compound C1=C2C=CC=CC2=NC21C=NC1=C3C=CC=CC3=CC=C1O2 KEBGPKSJAISGLV-UHFFFAOYSA-N 0.000 description 1
- JFLHVURVKPJADI-UHFFFAOYSA-N spiro[chromene-2,9'-xanthene] Chemical compound C12=CC=CC=C2OC2=CC=CC=C2C11C=CC2=CC=CC=C2O1 JFLHVURVKPJADI-UHFFFAOYSA-N 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3615—Coatings of the type glass/metal/other inorganic layers, at least one layer being non-metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
- C03C17/3417—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials all coatings being oxide coatings
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
- C03C17/3429—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating
- C03C17/3447—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating comprising a halide
- C03C17/3452—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating comprising a halide comprising a fluoride
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3621—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer one layer at least containing a fluoride
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3649—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer made of metals other than silver
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3657—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties
-
- 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
- G02B1/113—Anti-reflection coatings using inorganic layer materials only
- G02B1/115—Multilayers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/23—Photochromic filters
-
- 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
- G02C7/102—Photochromic filters
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/73—Anti-reflective coatings with specific characteristics
- C03C2217/734—Anti-reflective coatings with specific characteristics comprising an alternation of high and low refractive indexes
Definitions
- the present invention relates to transparent photochromic articles having anti-reflection surface coatings.
- the transparent articles according to the present invention are preferably employed in the preparation of articles such as optical lenses, including spectacle lenses, ophthalmic or not, visors, shields, glass sheets, protective screens, and the like.
- an anti-reflection coating generally including a plurality of thin layers of suitable materials, respectively of a low and high index of refraction, which increase the transmission in the range of the visible radiation whilst simultaneously reducing the quantity of light reflected from the substrate.
- the prior art suggests instead incorporating into the substrate, either internally or on the surface, one or more so-called photochromic compounds which are able to "darken" the substrate to reduce the transmission whenever they are activated from solar radiation in the UV range (350 to 400 nm approx.). In fact, in their "activated” state such compounds pass from colourless to coloured effectively filtering light at a wavelength corresponding to visible light (approximately 400 to 700 nm).
- a transparent photochromic article including a transparent substrate including a photochromic material; and an anti-reflection surface coating produced with a plurality of overlapping layers incorporating, alternatively a first and a second material having respectively higher and lower refractive indices, the anti-reflection coating including a first layer including said first material having an optical thickness of approximately 20 to 45 nm; a second layer including said second material having an optical thickness of approximately 25 to 45 nm; a third layer including said first material having an optical thickness of approximately 220 to 250 nm; and a fourth layer including said second material having an optical thickness of approximately 95 to 115 nm.
- transparent substrate we mean any form of transparent substrate, whether it be of glass or of plastic material.
- photochromic material we mean a material that is able to reduce the quantity of the light transmitted by the substrate when exposed to solar radiation.
- optical thickness we mean the thickness obtained by multiplying the physical thickness of the layer by the refractive index "n", of the material forming the same layer, measured at a wavelength ( ⁇ ) of 500 nm.
- the mean reflectance at the external surface of the article in the UV range as a function of wavelength is not limited to greater than
- the layers described in the present invention not only perform an efficient photoprotection action when exposed to solar radiation, but also present excellent characteristics of transmission of the light in non-activating radiation surroundings, i.e. in surroundings in which the article will tend to resume its unactivated state characteristics.
- the same type of positive results may be achieved by varying the number of layers of the anti-reflection coating (and, that is, with a different optical structure), provided that the total optical thickness is maintained in the range of +/- approximately 10% of the four coating layers described above.
- the present invention provides a transparent photochromic substrate of the type mentioned above, wherein said anti-reflection coating includes a first layer including said first material having an optical thickness of approximately 20 to 40 nm; a second layer including said second material having an optical thickness of approximately 40 to 55 nm; a third layer including said first material having an optical thickness of approximately 65 to 85 nm; a fourth layer including said second material having an optical thickness of approximately 30 to 45 nm; a fifth layer including said first material having an optical thickness of approximately 50 to 65 nm; and a sixth layer including said second material having an optical thickness of approximately 110 to 135 nm.
- the photochromic materials according to these aspects of the present invention may be selected from one or more of the group consisting of silver halides including mixed silver halides, anthraquinones, phthalocyanines, spiro- oxazines, chromenes, pyrans including spiro-pyrans and fulgides.
- the photochromic materials may be incorporated into the monomer formulation used to produce a polymer substrate layer or in the glass formulation used to produce a glass substrate or in coatings applied to substrates prior to the application of abrasion resistant or anti-reflective coatings.
- Examples of preferred photochromic dyes may be selected from one or more of the group consisting of
- one or both surfaces of the photochromic substrate may be subjected to a surface treatment to improve bondability and/or compatibility.
- the surface treatment may be selected from one or more of the group consisting of plasma discharge, corona discharge, glow discharge, ionising radiation, UV radiation, flame treatment and laser, preferably excimer laser treatment.
- the surface treatment alternatively or in addition, may include incorporating another bonding layer, for example a layer including a metal or metal compound selected from the group consisting of one or more of Chromium, Nickel, Tin, Palladium, Silicon, and/or oxides thereof.
- the transparent substrate may include any transparent element of plastic material having a refractive index of approximately 1.5 and 1.7.
- said plastic material is chosen from the group; polymer and copolymer with acrylic base, polymethylmethacrylate, polycarbonate, polyol-allyl- carbonate, esters of the cellulose, polyacrylate, polyvinyls, polystyrene, polyurethane and sulfur-containing materials, including thioacrylates and the like.
- a diethyleneglycol-bis-allyl-carbonate commercially available under the denomination of CR39TM (PPG Industries Inc.), commonly used for the production of lenses, ophthalmic or not, for spectacles has been found to be suitable.
- the transparent substrate may be formed from cross-linkable polymeric casting compositions, for example as described in the Applicants United States Patent 4,912,155, United States Patent Application No. 07/781 ,392, Australian Patent Applications 50581/93 and 50582/93, and European Patent Specification 453159A2, the entire disclosures of which are incorporated herein by reference.
- the Applicant describes a cross-linkable casting composition including at least polyoxyalkylene glycol diacrylate or dimethacrylate and at least one poly functional unsaturated cross- linking agent.
- a polyoxyalkylene glycol diacrylate or dimethacrylate a monomer including a recurring unit derived from at least one radical-polymerisable bisphenol monomer capable of forming a homopolymer having a high refractive index of more than 1.55; and a urethane monomer having 2 to 6 terminal groups selected from a group comprising acrylic and methacrylic groups.
- the plastic material may include a photochromic dye which may, for example, be added to the monomer formulation used to produce the polymeric material.
- the variation in depth of colour may be minimised by incorporating a pigment or dye into one or more layers of the optical article.
- the transparent substrate may be of the type described in International Patent Application PCT/AU96/00704 and PCT/AU96/00705 "Light
- the front and/or rear lens surfaces may include an abrasion resistant coating. e.g. of the type described in United States Patent 4,954,591 to the
- the front and/or rear lens surfaces may further include one or more additions conventionally used in casting compositions such as inhibitors, dyes including thermochromic and photochromic dyes, e.g. as described above, polarising agents, UV stabilisers and materials capable of modifying refractive index.
- the anti-reflection coating is formed from a first and second material in alternating layers.
- the above mentioned first material has a refractive index of approximately 1.6 to 2.5 and even more favourably, between approximately 1.95 and 2.4.
- the first material may be selected from the group which includes: Ti0 2 , Ti 2 0 3 , Ti 3 0 5 , PreOn+xTiOj, Ce0 2 , HfO 2 , Ta 2 O 5 , ZrO 2 , Sn0 2 .
- the above mentioned second material has a refractive index of approximately 1.30 to 1.48 and even more favourably, between approximately 1.38 to 1.48.
- the second material may be selected from the group which includes: Si0 2 , MgF 2 , AIF 3 , BaF 2 , Na 5 AI 3 F 14 , Na 3 AIF 6 , YF 3 and fluorocarbon compounds such as Teflon and the like.
- the anti-reflection coating further includes an intermediate layer of a material, between the substrate and the first layer of the coating.
- the intermediate layer has the double function of giving to the substrate adequate characteristics of resistance to scratches and to guarantee an adequate adhesion of the subsequent thin layers that form the anti- reflection coating.
- the intermediate layer material has a refractive index lower than that of the substrate, or example approximately 1.38 to 1.48.
- the intermediate layer has an optical thickness of approximately 200 to 300 nm and may be substantially made from Si0 2 .
- this intermediate layer Due to the limited thickness of this intermediate layer, the materials do not substantially compromise the optical performance of the anti-reflection coating applied to the substrate even though it has a high light abso ⁇ tion coefficient.
- the transparent substrate of the present invention may be used for the production of lenses or visors for spectacles, sheets, protection screens, etc. through well known surfacing techniques.
- the anti-reflection coating may be applied to both sides of the uncoated substrate, optionally after surface treatment thereof.
- the anti- reflection coating is preferably formed on the surfaces of the substrate according to the process and the box coaters as described in the Italian Patent No. 1.244.374 the entire disclosure of which is incorporated herein by reference.
- the various layers of the anti-reflection coating may be deposited in subsequent steps utilising a vacuum evaporation technique and exposing the growing layers to a bombardment of a beam of ions of inert gas.
- the deposition of the layers may be achieved at a low temperature (generally below 80°C), using an ion beam having a medium intensity (meaning the average number of ions that reach the substrate) included between approximately 30 and 100 ⁇ A/cm2 and the energy included between approximately 50 and 100 eV.
- a medium intensity meaning the average number of ions that reach the substrate
- the anti-reflection coating may preferably be formed on the surface(s) of the substrate by vacuum evaporation to form the various layers of the anti-reflection coating and heating the substrate.
- the substrate is maintained at an elevated temperature during the deposition of the various layers of the anti-reflection coating.
- Figure 1 illustrates the reflectance curves as a function of the wavelength for identical photochromic substrates: without anti-reflection coating, with an anti- reflection coating in accordance with known techniques and an anti-reflection coating according to the present invention.
- Figure 2 illustrates the reflectance curves as a function of the wavelength for different photochromic substrates made of glass or plastic material: having different refractive indices, with an anti-reflection coating according to the present invention
- Figures 3 and 4 illustrate the reflectance curves as a function of the wavelength for different photochromic glass substrate with an anti-reflection coating according to the present invention.
- All the glass panes have an opaque surface so enabling the measurement of the reflectance and show a reflective index of 1.52.
- the formation of the layers of coating was carried out with a Satis 1200D coater (Satis Vacuum AG), commercially available and equipped with a Leybold electronic gun having a 4 kW power supply, an Ion Gun CSC Mark II, a system controlling the flow of oxygen by MKS and a system controlling the flow of argon by MKS.
- the deposition parameters were as follows: initial vacuum ⁇ 2.0 "6 mbar; temperature before deposition ⁇ 80°C.
- the operating parameters of the ion gun were as follows: anode voltage 80 V; anode current 2 A; neutralising current -0.15 A.
- the Si0 2 layers were deposited by regulating the power of the electronic gun to a value of approx. 20% of its maximum power and introducing oxygen with a flow of approx. 10 seem.
- the flow of argon was automatically regulated by the ion gun in respect of the current and voltage values used.
- the speed of deposition of the layers was set at a value of approximately
- the TiaOs layers were deposited by regulating the power of the electronic gun to a value of approx. 50% of its maximum power and introducing oxygen with a flow of approx. 50 seem.
- the #2 curve interrupted line, illustrates the same curve for BK7 photochromic samples devoid of any anti- reflection coating.
- the formation of the layers of coating was carried out with a Satis 1200D deposition machine (Satis Vacuum AG), commercially available and equipped with a Leybold electronic gun having a 4kW power supply and a system controlling the flow of oxygen by MKS.
- the deposition parameters were the following: initial vacuum ⁇ 2.0 "6 mbar; temperature before deposition ⁇ 85°C.
- the SiO 2 layers were deposited by regulating the power of the electronic gun to a value of approx. 20% of its maximum power and introducing oxygen with a flow of approx. 10 seem.
- the speed of deposition of the layers was set at a value of approx. 1 nm/s.
- the T ' Os layers were deposited by regulating the power of the electronic gun to a value of approx. 50% of its maximum power and introducing oxygen with a flow of approx. 50 seem.
- the speed of deposition of the layers was set at a value of approx. 0.3 nm/s.
- Example 1 An anti-reflection coating using the procedures and deposition machinery described in Example 1 was deposited out on the above described lenses so achieving an anti-reflection coating having the characteristics illustrated in Table 1.
- the formation of the coating layers was carried out with a Satis 1200D deposition machine (Satis Vacuum AG), commercially available and equipped with a Leybold electronic gun having a 4kW power supply and a system controlling the flow of oxygen by MKS.
- the deposition parameters were the following: initial vacuum ⁇ 2.0 "6 mbar; temperature before deposition 300°C.
- Pr 6 O 11 +xTiO 2 layers were deposited by regulating the power of the electronic gun to a value of approx. 50% of its maximum power and introducing oxygen with a flow of approx. 9 seem.
- the speed of deposition of the layers was set at a value of approx. 0,3 nm/s.
- the MgF 2 layers were deposited by regulating the power of the electronic gun to a value of approx. 15% of its maximum power.
- the speed of deposition of the layers was set at a value of approx.
- the interrupted line curve illustrates the trend of the reflectance of photochromic BK7 glass and Corning glass samples, devoid of any anti-reflection coating.
- the curve drawn as an interrupted line, illustrates the trend of the reflection factor of photochromic BK7 glass devoid of any anti-reflection coating.
- the layers according to the known techniques show a marked increase of the reflection factor especially in this last range, with a marked reduction both in speed and darkening intensity of the lenses after exposure.
- the substrate of the present invention shows a prompt photochromic response superior even to those offered by the same substrate devoid of any anti-reflection coating thanks to the increased transmittance in the range of photochromic activation (350 to 400 nm).
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- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Ophthalmology & Optometry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Eyeglasses (AREA)
- Optical Filters (AREA)
- Laminated Bodies (AREA)
- Surface Treatment Of Optical Elements (AREA)
- Paints Or Removers (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97901478A EP0877963A4 (en) | 1996-01-31 | 1997-01-31 | Transparent photochromic article including an anti-reflection surface coating |
US09/117,276 US6175450B1 (en) | 1996-01-31 | 1997-01-31 | Transparent photochromic article including an anti-reflection surface coating |
AU15368/97A AU719476B2 (en) | 1996-01-31 | 1997-01-31 | Transparent photochromic article including an anti-reflection surface coating |
BR9707206A BR9707206A (en) | 1996-01-31 | 1997-01-31 | Photochromic transparent article including an anti-reflection surface coating |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT96MI000162A IT1282106B1 (en) | 1996-01-31 | 1996-01-31 | TRANSPARENT PHOTOCROMATIC SUBSTRATE INCLUDING AN ANTI-REFLECTIVE SURFACE COATING |
ITMI96A000162 | 1996-01-31 |
Publications (1)
Publication Number | Publication Date |
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WO1997028467A1 true WO1997028467A1 (en) | 1997-08-07 |
Family
ID=11373076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1997/000051 WO1997028467A1 (en) | 1996-01-31 | 1997-01-31 | Transparent photochromic article including an anti-reflection surface coating |
Country Status (7)
Country | Link |
---|---|
US (1) | US6175450B1 (en) |
EP (1) | EP0877963A4 (en) |
AU (1) | AU719476B2 (en) |
BR (1) | BR9707206A (en) |
CA (1) | CA2244230A1 (en) |
IT (1) | IT1282106B1 (en) |
WO (1) | WO1997028467A1 (en) |
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- 1997-01-31 EP EP97901478A patent/EP0877963A4/en not_active Withdrawn
- 1997-01-31 US US09/117,276 patent/US6175450B1/en not_active Expired - Lifetime
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Cited By (22)
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WO2000021748A1 (en) * | 1998-10-15 | 2000-04-20 | Pleotint, L.L.C. | Thermochromic devices |
US6446402B1 (en) | 1998-10-15 | 2002-09-10 | Pleotint, L.L.C. | Thermochromic devices |
EP1110920A1 (en) * | 1999-12-22 | 2001-06-27 | Sony Corporation | LIght-absorptive antireflection filter, display device, and methods of producing the same |
US6784608B2 (en) | 1999-12-22 | 2004-08-31 | Sony Corporation | Light-absorptive antireflection filter, with pigment containing light-absorptive film and electroconducting thin film, and device using same |
EP1174734A3 (en) * | 2000-07-17 | 2004-11-24 | Konica Corporation | Optical element and eyeglass lens |
US6570709B2 (en) * | 2000-07-27 | 2003-05-27 | Asahi Glass Company, Limited | Substrate provided with antireflection films and its production method |
FR2812629A1 (en) * | 2000-08-01 | 2002-02-08 | Cybereyes | Processing of a photochromic glass for firm connection to spectacle frames for sunglasses involves applying antireflection layer on side nearest to wearer's eye and specular layer on other side |
WO2011107277A1 (en) * | 2010-03-02 | 2011-09-09 | Schott Ag | Method for multi-coating and glass substrate coated with multiple layers |
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US8690322B2 (en) | 2010-12-10 | 2014-04-08 | Essilor International | Optical article comprising an antireflective coating with a low reflection both in the ultraviolet region and in the visible region |
US8870374B2 (en) | 2010-12-10 | 2014-10-28 | Essilor International | Optical article comprising an antireflective coating with a low reflection both in the ultraviolet region and in the visible region |
US9488852B2 (en) | 2010-12-10 | 2016-11-08 | Essilor International (Compagnie Generale D'optique) | Optical article comprising an antireflective coating with a low reflection both in the ultraviolet region and in the visible region |
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US10073279B2 (en) | 2010-12-10 | 2018-09-11 | Essilor International | Optical article comprising an antireflective coating with a low reflection both in the ultraviolet region and in the visible region |
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US10649232B2 (en) | 2010-12-10 | 2020-05-12 | Essilor International | Optical article comprising an antireflective coating with a low reflection both in the ultraviolet region and in the visible region |
US11099302B2 (en) | 2014-02-25 | 2021-08-24 | I-Coat Company, LLC | Visible spectrum anti-reflective coatings with reduced reflections in ultraviolet and infrared spectral bands |
US10317576B2 (en) | 2014-02-25 | 2019-06-11 | I-Coat Company, LLC | Visible spectrum anti-reflective coatings with reduced reflections in ultraviolet and infrared spectral bands |
Also Published As
Publication number | Publication date |
---|---|
EP0877963A1 (en) | 1998-11-18 |
EP0877963A4 (en) | 1999-04-14 |
AU1536897A (en) | 1997-08-22 |
AU719476B2 (en) | 2000-05-11 |
BR9707206A (en) | 1999-04-06 |
CA2244230A1 (en) | 1997-08-07 |
ITMI960162A0 (en) | 1996-01-31 |
IT1282106B1 (en) | 1998-03-12 |
US6175450B1 (en) | 2001-01-16 |
ITMI960162A1 (en) | 1997-07-31 |
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