WO2002006173A1 - Procede pour former un revetement de type miroir sur un article optique - Google Patents

Procede pour former un revetement de type miroir sur un article optique Download PDF

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Publication number
WO2002006173A1
WO2002006173A1 PCT/EP2001/008172 EP0108172W WO0206173A1 WO 2002006173 A1 WO2002006173 A1 WO 2002006173A1 EP 0108172 W EP0108172 W EP 0108172W WO 0206173 A1 WO0206173 A1 WO 0206173A1
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WO
WIPO (PCT)
Prior art keywords
reflectance
composition
transparent substrate
reflective
layers
Prior art date
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PCT/EP2001/008172
Other languages
English (en)
Inventor
Sheila May Tatman
Hoa Thien Dang
Mark Mildebrath
Sidney Shaw White Jr.
Original Assignee
Essilor International Compagnie Generale D'optique
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Publication date
Application filed by Essilor International Compagnie Generale D'optique filed Critical Essilor International Compagnie Generale D'optique
Priority to AU2001277540A priority Critical patent/AU2001277540A1/en
Publication of WO2002006173A1 publication Critical patent/WO2002006173A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/0816—Multilayer mirrors, i.e. having two or more reflecting layers
    • G02B5/0825—Multilayer mirrors, i.e. having two or more reflecting layers the reflecting layers comprising dielectric materials only
    • 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
    • C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
    • C03C17/007—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character containing a dispersed phase, e.g. particles, fibres or flakes, in a continuous phase
    • 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
    • C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
    • C03C17/30—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds
    • 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
    • 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
    • C03C17/3405—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 organic materials
    • 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
    • C03C2217/40—Coatings comprising at least one inhomogeneous layer
    • C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
    • C03C2217/44—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the composition of the continuous phase
    • C03C2217/445—Organic continuous phases
    • 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
    • C03C2217/40—Coatings comprising at least one inhomogeneous layer
    • C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
    • C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
    • C03C2217/47—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase consisting of a specific material
    • C03C2217/475—Inorganic materials

Definitions

  • the present invention relates to a method for forming a reflective or mirror coating onto a surface of an optical article such as an ophthalmic lens and to the optical article resulting therefrom.
  • Mirror coated lenses in particular, sunglass lenses, are widely used in the industry. Mirror coatings are useful for filtering light as well as creating a fashionable appearance.
  • Mirror coatings known in the art are multilayer structures that achieve their optical properties by means of thin film interference effects.
  • Their multilayer structures are generally comprised of a plurality of dielectric and metallic layers, wherein the thickness and/or number of the respective layers are selected to provide a desired reflectance.
  • the reflective layers are mineral layers formed by vacuum deposition.
  • Vacuum deposition necessitates special equipment which are relatively sophisticated and costly.
  • the use of the vacuum deposition technique may have some negative impact when the mirror coating is formed on a tinted organic glass.
  • the dye dispersed in the glass may migrate towards the organic glass surface.
  • a further object of the present invention is to provide a method for forming a reflective or mirror coating onto a surface of a tinted optical transparent substrate which avoids possible migration of the dye within the transparent substrate.
  • a method for forming a reflective or mirror coating onto a surface of a transparent substrate comprising : - spin coating a surface of the transparent substrate with at least one curable reflectance-imparting composition, and
  • Figs. 1 to 3 are theoretical graphs of L*, a* and b* curves for standard quarter wave designs comprising multilayer stacks of high refractive index reflective layer (H) and lower refractive index reflective layer (L) wherein in Fig. 1 the stack is three layers HLH stack, in Fig. 2 the stack is a five layers HLHLH stack and in Fig. 3 the stack is a seven layers HLHLHLH stack ; and Fig. 4 is a theoretical graph of the reflectance (%) at a wavelength of 550 nm in function of the number of layers for standard quarter wave designs.
  • H high refractive index reflective layer
  • L lower refractive index reflective layer
  • the method for forming a reflective or mirror coating onto a surface of an optical lens, preferably the convex face comprises spin coating the surface with at least one curable reflectance-imparting composition and curing the at least one curable reflectance-imparting composition.
  • the reflective or mirror coating is made of a multilayer stack comprised of alternate reflective layers of higher ( ⁇ H) and lower (n refractive indexes, each of the layers of the stack being formed by successively spin coating an appropriate curable reflectance-imparting composition and curing it.
  • the curable reflectance-imparting compositions may be heat-cured (infrared or convection heating), UV-cured, or both heat and UV-cured depending upon the nature of the curable composition.
  • the thicknesses of the reflective layers in the coatings can vary, but preferably range from 20 nm to 600 nm and more preferably from 50 nm to 500 nm, with an optimal range from 100 to 300 nm, for imparting the desired properties. Different methods may be used for designing the reflective stacks of layers.
  • the initial designs may be standard 1/4 wave stacks that offer high reflectance at the design wavelength.
  • ⁇ H high index
  • n H high index
  • the desired reflectance color may be produced by finding some object with the desired reflect color and quality, measuring it using a spectrophotometer, and reverse engineering an optical stack to reproduce the same reflectance characteristic.
  • the stack design of the present invention can be realized by one of several methods.
  • Method 1 - The stack may be realized by using a standard 1/4 wave stack consisting of alternating layers of high and low index material layers.
  • Method 2 - The stack may be realized by using designs utilizing layers of thickness other than 1/4 wave thickness in order to achieve the desired optical effect.
  • Method 3 The stack may be realized by using non-standard designs obtained by reverse engineering.
  • a reflectance or transmission curve is obtained or synthesized. This curve represents the desired optical performance and may be obtained by measuring the reflectance or transmission of an item that exhibits the desired optical performance. This curve can then be used to reverse engineer a stack with the same or similar performance.
  • the optical characteristic can be obtained by using materials with several different qualities : 1)
  • the materials can be optically clear in the visible region with indexes of refraction from between 1.3 to 3.0 and preferably between 1.4 and 2.0. As these materials are clear in the visible region the extinction coefficient k is small or very nearly equal to 0.
  • the materials can be optically colored in the visible region with indexes of refraction from between 1.3 and 3.0 and preferably between 1.4 and 2.0. As these materials are colored in the visible region the extinction coefficient, k is non-0 over at least a portion of the visible spectrum.
  • the materials can be metallic in nature exhibiting a high reflectance with various indexes of refraction and high extinction coefficients.
  • ⁇ H can have an index greater than, equal to, or less than the substrate
  • n ⁇ _ can have an index greater than, equal to, or less than the substrate.
  • ⁇ is the design wavelength in nm
  • m is an odd integer
  • n is the index of refraction of the layer.
  • the layers are referred to as quarter wave layers.
  • the thickness d is given in nm.
  • the reflectance curve can be determined using methods of calculation as found in texts such as : 1.) A. Thelen, "Design of Optical Interference Coatings",
  • m is 1 and ⁇ varies between 400nm and 700 nm. Care must be taken to include absorption in the film if appropriate.
  • m may have any value including non-integer values.
  • Curves as shown in Figs. 1 to 3 can be used to select the desired reflect color.
  • L*, a * and b* are defined hereinafter.
  • the reflective coatings obtained according to the method of the invention preferably have a mean reflectance p m as defined in ISO/DIS 8980-4 (1998) of at least 4%, preferably at least 10%.
  • the curable reflectance-imparting compositions for use in the process of the invention may be any liquid reflectance-imparting composition that can be cured in a solid layer.
  • compositions typically comprise a mineral charge, preferably metal oxide particles, dispersed in a liquid curable medium.
  • Preferred liquid curable medium comprises at least one compound selected from the group consisting of an organic silicon compound represented by the following general formula :
  • R a 1 R b 2 Si(OR) 4- a-b wherein R 1 and R 2 independently stand for a hydrocarbon group having 1 to 10 carbon atoms, which contains an alkyl, alkenyl, aryl, halogeno, epoxy, amino, mercapto, methacryloxy or cyano group, R stands for an alkyl, alkoxy-alkyl or acyl group having 1 to 8 carbon atoms, a and b are 0 or 1 , and the sum of a and b is 1 or 2, and an hydrolyzed product of said organic silicon compound.
  • trialkoxy-, triacyloxy- and triphenoxy-silanes such as methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxy-ethoxysilane, methyltriacetoxysilane, methyltributoxysilane, ethyltrim-ethoxysilane, ethyltriethoxysilane, vinyltrimethoxysilane, vinyltri-ethoxysilane, vinyltriacetoxysilane, vinyltrimethoxyethoxysilane, phenyltrimethoxysilane, phenyltriethoxysilane, phenyltriacetoxysilane, ⁇ -chloropropyltrimethoxysilane, ⁇ -chloropropyltriethoxysilane, ⁇ -chloropropyltriacetoxysilane, 3,3,3-tri
  • organic silicon compounds may be used either alone or in the form of a mixture of two or more of them.
  • use of epoxy group-containing organic silicon compounds is especially preferred.
  • organic silicon compounds are preferably used after they are hydrolyzed.
  • the hydrolysis can be accomplished by adding pure water or an aqueous acid solution such as hydrochloric acid, acetic acid or sulfuric acid to the organic silicon compound and stirring the mixture.
  • the degree of hydrolysis can easily be controlled by adjusting the amount of pure water or the aqueous acid solution used. In view of promotion of the hydrolysis, it is especially preferred that 1 to 3 moles, per mole of the alkoxy group, of pure water or the aqueous acid solution be added for the hydrolysis.
  • the hydrolysis can be carried out in the absence of a solvent.
  • a method in which the organic silicon compound is mixed with a solvent and the hydrolysis is then carried out may be adopted.
  • the hydrolyzed product may be used after an appropriate amount of the alcohol or the like produced by the hydrolysis is removed by heating and/or under reduced pressure.
  • the preferred trialkoxysilanes are methyltrimethoxysilane and glycidoxypropyltrimethoxysilane.
  • the mineral charge may be a metal, a metal oxide, a metal nitride, a metal fluoride or a mixture thereof.
  • the mineral charge is a metal oxide.
  • Such mineral charges are disclosed in US 4,590, 117.
  • Ti0 fillers and cerium oxide fillers can be cited, in particular HIT 32 M ® which is a composite oxide of Ti0 2 / Sn0 2 / Zr0 2 in methanol with about 30% solid content.
  • HIT 32 M ® which is a composite oxide of Ti0 2 / Sn0 2 / Zr0 2 in methanol with about 30% solid content.
  • the expression "weight of solid material issued from the organic silicon compounds” means the calculated weight of units:
  • R 1 , R 2 , a and b have the same meaning as above and R 1 and R 2 are directly bonded to the silicon atom by a Si-C bond.
  • Various additives for example, a leveling agent and a defoamer for improving the adaptability to the coating operation, an ultraviolet absorber and an antioxidant as the coating modifier, and a surfactant for giving an antifogging property and an antistatic property may be added to the liquid coating compositions.
  • the compositions are ordinarily coated in the state diluted with a volatile solvent.
  • the kind of the solvent is not particularly critical, but an appropriate solvent should be selected while the stability of the compositions, the wetting property to the transparent substrate and the volatility are taken into consideration.
  • the solvent may be used either alone or as a mixture of two or more solvents.
  • liquid coating composition used herein is meant a composition having a viscosity ordinarily applicable to the coating operation.
  • the liquid coating composition has a viscosity preferably of not more than 10 poises, preferably not more than 1 poise, at the application temperature. In case of a liquid composition having too high a viscosity, it is difficult to obtain a uniform coating.
  • any transparent materials may be used as the transparent substrate, but in view of the fact that liquid compositions are coated, glass and plastic materials are especially preferred.
  • the plastic material there are preferably used polymethyl methacrylate, a copolymer thereof, a polycarbonate, a diethylene glycol bisallyl carbonate polymer (CR-39 ® ), a polyester, particularly polyethylene terephthalate, an unsaturated polyester, an acrylonitrile-styrene copolymer, a vinyl chloride polymer resin, a polyurethane and an epoxy resin.
  • Glass substrates may also advantageously be used.
  • a substrate of a plastic material as mentioned above or a glass substrate, which is covered with a coating material can also preferably be used.
  • the spin coating process of the invention can utilize any suitable device such as the Photo Resist model #1-PM101D-R465 from Headway Research, Inc. of Dallas, TX.
  • the liquid reflectance-imparting composition may be applied manually with a pipette in the Photo Resist spin coater.
  • the coating spin speeds preferably range from 150 rpm to 1000 rpm and most preferably from 500 to 900 rpm.
  • the spinning time during the coating process preferably ranges from 2 to 10 seconds, and most preferably from 3 to 6 seconds.
  • the lenses are then spun to remove excess coating and to dry the lens. Spin-off and drying is preferably performed at spin speeds ranging from 1000 to 7000 rpm, and most preferably from 2000 to 5000 rpm.
  • the spinning time is preferably from 15 seconds to 60 seconds, and most preferably from 20 seconds to 45 seconds.
  • the coated lenses were cured using suitable equipment, either a convection oven, infrared source, or ultraviolet source, according to the chemistry of the coatings.
  • the method of the invention uses a low cost equipment
  • -spin coated mirror lenses have very good impact resistance; -it allows to adjust the tintable properties of the spin mirror coated lenses.
  • the mirror coated lens can be tintable or not tintable.
  • Example 1 illustrates the invention. In the examples, when otherwise stated, all parts and percentages are by weight. All the lenses of the examples are made of diethylene glycol bisallylcarbonate (CR39 ® ) polymer. The thicknesses of the mirror coatings are physical thicknesses measured by interferometry method. Example 1
  • This example relates to forming a reflective coating comprising a stack of three reflective layers.
  • Methyltrimethoxysilane 1.43 parts was added to 13.40 parts of methyl-alcohol. Nalco 1034A 11.40 parts was added to the mixture and stirred overnight. Tetraethoxysilane 1.43 parts was hydrolyzed with 0.51 parts 0.1N hydrochloric acid and stirred overnight in a separate container. The next day, the tetraethoxysilane was added to the methyltrimethoxysilane mixture. 2-hydroxy-4-methyl pentanone 30.94 parts and 40.20 parts of ethyl alcohol was stirred into the solution. Aluminum acetyl acetonate, 0.46 parts, was then added and mixed. Finally 0.32 parts of surface active agent was mixed into the coating liquid.
  • composition 1 was applied, in the manner previously described, to a surface of a clear lens substrate at a thickness of 98 nanometers on the convex surface and cured via convection oven to form reflective layer 1.
  • Composition 2 was applied, in the manner previously described, onto the cured reflective layer 1 , at a thickness of 120 nanometers and cured via convection oven to form reflective layer 2.
  • Composition 1 was then applied onto the cured reflective layer 2, in the manner previously described, at a thickness of 98 nanometers and cured via convection oven to form reflective the top or final reflective layer 3.
  • the final lens was subjected to reflectance and color measurements. See Table I for the measurement results.
  • Example 2 Example 2
  • Composition 1, from Example 1 was applied, in the manner previously described, to a tinted (in BPI Black, to approx. 25 % transmission) lens substrate at a thickness of 98 nanometers on the convex surface and cured via convection oven to form reflective layer 1.
  • Composition 2, from Example 1 was applied, in the manner previously described, onto the cured reflective layer 1 , at a thickness of 120 nanometers and cured via convection oven to form reflective layer 2.
  • Composition 1 , from Example 1 was then applied onto the cured reflective layer 2, in the manner previously described, at a thickness of 98 nanometers and cured via convection oven to form the top or final reflective layer 3. The final lens was subjected to reflectance and color measurements. See Table I for the measurement results.
  • Example 3 Example 3
  • Composition 1 from Example 1, was applied, in the manner previously described, to a tinted (in BPI Black, to approx. 25 % transmission) lens substrate at a thickness of 77 nanometers on the convex surface and-cured via convection oven to form reflective layer 1.
  • Composition 2,irorrf Example 1 was applied, in the manner previously described, onto the cured reflective layer 1, at a thickness of 96 nanometers and cured via convection oven to form reflective layer 2.
  • Composition 1 was then applied onto the cured reflective layer 2, in the manner previously described, at a thickness of 77 nanometers and cured via convection oven to form the top or final reflective layer 3.
  • the final lens was subjected to reflectance and color measurements. See Table I for the measurement results.
  • Example 4 Example 4
  • Composition 1 was applied, in the manner previously described, to a clear lens substrate at a thickness of 98 nanometers on the convex surface and cured via convection oven to form reflective layer 1.
  • Composition 3 was applied, in the manner previously described, onto the cured reflective layer 1 , at a thickness of 120 nanometers and cured via convection oven to form reflective layer 2.
  • Composition 1 was then applied onto the cured reflective layer 3, in the manner previously described, at a thickness of 98 nanometers and cured via convection oven to form the top or final reflective layer 3.
  • the final lens was subjected to reflectance and color measurements. See Table I for the measurement results.
  • Example 5 Example 5
  • Composition 1 was applied, in the manner previously described, to a clear lens substrate at a thickness of 98 nanometers on the convex surface and cured via convection oven to form reflective layer 1.
  • Composition 3 was applied, in the manner previously described, onto the cured reflective layer 1 , at a thickness of 120 nanometers and cured via convection oven to form reflective layer 2.
  • Composition 1 was then applied onto the cured reflective layer 3, in the manner previously described, at a thickness of 98 nanometers and cured via convection oven to form reflective layer 3.
  • Compositions 3 and 1 were applied again, making the total number of layers 5. The final lens was subjected to reflectance and color measurements. See Table I for the measurement results.
  • Example 6 Example 6
  • Composition 1 was applied, in the manner previously described, to a clear lens substrate at a thickness of 98 nanometers on the convex surface and cured via convection oven to form reflective layer 1.
  • Composition 3 was applied, in the manner previously described, onto the cured reflective layer 1 , at a thickness of 120 nanometers and cured via convection oven to form reflective layer 2.
  • Composition 1 was then applied onto the cured reflective layer 3, in the manner previously described, at a thickness of 98 nanometers and cured via convection oven to form reflective layer 3.
  • Compositions 3 and 1 were applied twice each, again, making the total number of layers 7. The final lens was subjected to reflectance and color measurements. See Table I for the measurement results.
  • Example 7 Example 7
  • Composition 1 was applied, in the manner previously described, to a clear lens substrate at a thickness of 98 nanometers on the convex surface and cured via convection oven to form reflective layer 1.
  • Composition 3 was applied, ' in the manner previously described, onto the cured reflective layer 1 , at a thickness of 120 nanometers and cured via convection oven to form reflective layer 2.
  • Composition 1 was then applied onto the cured reflective layer 3, in the manner previously described, at a thickness of 98 nanometers and cured via convection oven to form reflective layer 3.
  • Compositions 3 and 1 were applied three times each, again, making the total number of layers 9. The final lens was subjected to reflectance and color measurements. See Table I for the measurement results.
  • Visual reflectance corresponds to p v as described in ISO/DIS 8980- 4(1998/10/01). 5
  • Our system is a single beam model (SMR). From this measurement, the color properties are determined.
  • L*, a* and b* are calculated by utilizing the method adopted by the CIE 0 (Commission Internationale de L'Eclairage) in 1978.
  • the color scale is the CIE 1976 L*, a*, b* or CIELAB. In our data, the 10°1964 CIE standard observer is used along with the D65 llluminant.
  • L* is a measurement of the brightness of the object, a* measures the red to green color (+a* is red and -a* is green), b* measures the blue to ⁇ yellow color (+b* is yellow and -b* is blue). The sign of the two values determines the color (hue) the magnitude of the numbers indicates the color saturation.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Dispersion Chemistry (AREA)
  • Composite Materials (AREA)
  • Surface Treatment Of Optical Elements (AREA)

Abstract

L'invention concerne un procédé permettant de produire un revêtement réfléchissant sur une surface d'un substrat transparent, qui comprend les étapes suivantes : recouvrir par centrifugation la surface du substrat transparent avec au moins une composition apte à la cuisson, conférant de la réflectance ; cuire la composition apte à la cuisson qui confère de la réflectance (au moins au nombre de une), ce qui permet de conférer une propriété réfléchissante au substrat transparent.
PCT/EP2001/008172 2000-07-13 2001-07-13 Procede pour former un revetement de type miroir sur un article optique WO2002006173A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001277540A AU2001277540A1 (en) 2000-07-13 2001-07-13 Method for forming a mirror coating onto an optical article

Applications Claiming Priority (4)

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US21798500P 2000-07-13 2000-07-13
US60/217,985 2000-07-13
US22208700P 2000-08-01 2000-08-01
US60/222,087 2000-08-01

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4590117A (en) 1983-03-10 1986-05-20 Toray Industries, Inc. Transparent material having antireflective coating
US5928718A (en) * 1997-09-25 1999-07-27 Dillon; Stephen M. Protective coating for reflective sunglasses
DE19823732A1 (de) * 1998-05-27 1999-12-02 Inst Neue Mat Gemein Gmbh Verfahren zur Herstellung optischer Mehrschichtsysteme

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4590117A (en) 1983-03-10 1986-05-20 Toray Industries, Inc. Transparent material having antireflective coating
US5928718A (en) * 1997-09-25 1999-07-27 Dillon; Stephen M. Protective coating for reflective sunglasses
DE19823732A1 (de) * 1998-05-27 1999-12-02 Inst Neue Mat Gemein Gmbh Verfahren zur Herstellung optischer Mehrschichtsysteme

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
A. Thelen, "Design of Optical Interference Coatings", McGraw Hill, New York, 1989
FLOCH H G ET AL: "COLLOIDAL SOL-GEL OPTICAL COATINGS", AMERICAN CERAMIC SOCIETY BULLETIN, AMERICAN CERAMIC SOCIETY. COLUMBUS, US, vol. 69, no. 7, 1 July 1990 (1990-07-01), pages 1141 - 1143, XP000163087, ISSN: 0002-7812 *
H.A. MacLeod, "Thin Film Optical Filters", 2nd edition, McGraw Hill, New York, 1989
H.K. Pulker, "Coatings on Glass", Elsevier, Amsterdam, 1984
SHEN J ET AL: "SOL-GEL PROCESSING OF ZIRCONIA COATING FOR HR MIRRORS WITH HIGH LASER DAMAGE THRESHOLD", JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, KLUWER ACADEMIC PUBLISHERS, DORDRECHT, NL, vol. 19, no. 1-3, 1 December 2000 (2000-12-01), pages 271 - 274, XP001001845, ISSN: 0928-0707 *
SUN Y ET AL: "DESIGN OF REFLECTIVE TANTALA OPTICAL COATINGS USING SOL-GEL CHEMISTRY WITH ETHANOIC ACID CATALYST AND CHELATOR", THIN SOLID FILMS, ELSEVIER-SEQUOIA S.A. LAUSANNE, CH, vol. 278, no. 1/2, 15 May 1996 (1996-05-15), pages 135 - 139, XP000637226, ISSN: 0040-6090 *

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