WO2010109154A1 - Article d'optique revêtu d'un revêtement antireflet ou réfléchissant comprenant une couche électriquement conductrice à base d'oxyde d'étain et procédé de fabrication - Google Patents
Article d'optique revêtu d'un revêtement antireflet ou réfléchissant comprenant une couche électriquement conductrice à base d'oxyde d'étain et procédé de fabrication Download PDFInfo
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- WO2010109154A1 WO2010109154A1 PCT/FR2010/050564 FR2010050564W WO2010109154A1 WO 2010109154 A1 WO2010109154 A1 WO 2010109154A1 FR 2010050564 W FR2010050564 W FR 2010050564W WO 2010109154 A1 WO2010109154 A1 WO 2010109154A1
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- substrate
- layer
- coating
- electrically conductive
- antireflection
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- 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
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- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
-
- G—PHYSICS
- G02—OPTICS
- 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
- G02B1/116—Multilayers including electrically conducting layers
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- 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
- G02B1/16—Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
- G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
Definitions
- Optical article coated with an antireflection or reflective coating comprising an electrically conductive layer based on tin oxide and method of manufacture
- the present invention generally relates to an optical article, in particular an ophthalmic lens, having both antistatic, antireflection and reflective properties, which has the advantage of not developing in time cosmetic defects due to antistatic treatment it has undergone, as well as a method of preparing such an optical article.
- the antireflection coating is generally deposited on the surface of the abrasion-resistant layer.
- Such a stack reduces the impact resistance, stiffening the system which then becomes brittle. This problem is well known in the ophthalmic lens industry of organic glass.
- optical articles which are composed of essentially insulating materials, tend to have their surface load easily with static electricity, especially when they are cleaned in dry conditions by rubbing their surface with 'a rag, a piece of synthetic foam or polyester
- the charges present on their surface create an electrostatic field capable of attracting and fixing objects of very low mass in the vicinity (a few centimeters), generally small particles such as dust, and during all the time the charge remains on the item.
- an optical article can acquire antistatic properties by incorporating at its surface, in the stack of functional coatings, at least one electrically conductive layer, or "antistatic layer, "these two terms being used interchangeably.
- This antistatic layer may constitute the outer layer of the stack of functional coatings, an intermediate layer (internal) or be deposited directly on the substrate of the optical article. The presence of such a layer in a stack gives the article antistatic properties, even if the antistatic coating is interposed between two non-antistatic coatings or substrates.
- antistatic is meant the property of not retaining and / or developing an appreciable electrostatic charge.
- An article is generally considered to have acceptable antistatic properties, when it does not attract and fix dust and small particles after one of its surfaces has been rubbed with a suitable cloth. It is able to quickly dissipate accumulated electrostatic charges, so that such an article seems more "clean" after wiping.
- the antistatic property of a material is often related to the static potential of the material.
- the static potential of the material measured while the article has not been loaded
- the material is antistatic, however when its static potential is different from 0 KV +/- 0.1 KV (in absolute value), the material is said to be static.
- the ability of a glass to evacuate a static charge obtained after friction by a fabric or by any other method of generating an electrostatic charge can be quantified by a measurement of dissipation time of said charge.
- a glass is considered antistatic if its discharge time is less than or equal to 500 milliseconds.
- Static glasses can have discharge times of the order of several tens of seconds and, when they have just been wiped, can attract surrounding dust for as long as necessary for their discharge.
- Known antistatic coatings comprise at least one antistatic agent, which is generally an optionally doped (semi-) metal oxide, such as tin-indium oxide (ITO), zinc oxide.
- ITO tin-indium oxide
- Tin-indium oxide (ITO) is the most used material. It can be tin oxide doped with indium or indium oxide doped with tin. Generally, the most widely communicated material is tin-doped indium oxide, with tin being used at 5 to 17% by weight.
- the application WO 2009/004222 in the name of the applicant, describes an optical article with antireflection properties, comprising a substrate having at least one main surface coated with an antireflection coating which may comprise at least one electrically conductive layer.
- This layer preferably comprises a metal oxide chosen from indium, tin and zinc oxides and mixtures thereof, the preferred material being tin-indium oxide (ITO).
- ITO tin-indium oxide
- antireflective coatings comprising an ITO-based antistatic layer are not entirely satisfactory.
- ITO-based antistatic layers have the disadvantage of absorbing in the visible range in a significant way, so that their thickness must be relatively low so as not to impair the transparency properties of an optical article.
- the ITO layers have a slightly too high yellow level when they are deposited on certain substrates such as the ORMA ® substrate, which is visible to the naked eye if the ITO layer is thicker than 6.5 nm.
- defects related to the use of conductive antistatic layers, in particular layers of ITO are the appearance of defects called cosmetic defects on the optical article after a relatively short time after the preparation of the optical article with anti-reflective and antistatic properties. Such defects prevent the marketing of the optical items on which they are observed. Depending on the substrates, these defects are initially present or develop after a period of time ranging from a few days to a few months, during the wearing of ophthalmic lenses. These defects are in the form of dots or lines on the surface of the article.
- the conductive layers are generally deposited under ionic assistance.
- the inventors have determined that this ionic assistance significantly increases the rate of appearance of defects.
- the present invention therefore aims to provide a transparent optical article, including an ophthalmic lens, having both antistatic and antireflection or reflective properties, possibly anti-abrasion and / or anti-scratch and / or shockproof, but which does not develop during the time of cosmetic defects, and which retains excellent adhesion properties of the different coating layers to each other.
- Another object of the invention is to obtain an optical article whose antistatic properties are stable over time.
- the present invention also aims a method of manufacturing an article as defined above which easily integrates into the conventional process of manufacturing said articles while not including a step of heating the substrate.
- the inventors have determined that it is necessary to act on the nature of the material constituting the antistatic layer and to retain a specific material to solve the technical problem. This problem can not be solved by changing the location of the antistatic coating in the stack.
- the inventors have also determined the characteristic of substrates prone to develop such defects, once coated with antistatic antireflective (or reflective) coating, and which substrates did not exhibit this type of defect, whatever the nature of the layer. antistatic.
- the present invention resides in the fact that the use, in an antireflection or reflective coating, of certain antistatic layers based on SnO 2 , does not cause cosmetic defects on substrates whose water uptake rate is greater than 0, 6% by weight and thus preserves the transparency, particularly over time, of said coating, preventing its alteration.
- an optical article with antistatic and antireflection or reflective properties comprising a substrate having at least one main surface coated with an antireflection or reflective coating, said coating comprising at least one layer electrically conductive material comprising at least 30%, preferably at least 40% and better still at least 50% by weight of tin oxide (SnO 2 ) relative to the total mass of the electrically conductive layer, the deposition of said electrically conductive layer having been carried out under ionic assistance, and said substrate having a water uptake rate greater than or equal to 0.6% by weight relative to the total mass of said substrate, the water uptake rate being measured after prior drying of said substrate and then storage of this substrate for 800 hours in an enclosure at 50 0 C under a relative humidity of 100% and at atmospheric pressure.
- tin oxide SnO 2
- the invention also relates to a method of manufacturing such an optical article, comprising at least the following steps: - providing an optical article comprising a substrate having at least one main surface, said substrate having a recovery rate of water greater than or equal to 0.6% by weight relative to the total mass of said substrate, the degree of water uptake being measured as described above; depositing on said main surface of the substrate an antireflection or reflecting coating, said coating comprising at least one electrically conductive layer, comprising at least 30% by weight of tin oxide (SnO 2 ) relative to the total mass of the layer; electrically conductive, the deposition of said electrically conductive layer being carried out under ionic assistance, recovering an optical article comprising a substrate having a main surface coated with said antireflection or reflecting coating which comprises said electrically conductive layer.
- the term "depositing a layer or coating on the article” means that a layer or coating is deposited on the surface to be coated. discovered (exposed) of the outer coating of the article, that is to say its coating farthest from the substrate.
- a coating that is "on" a substrate or that has been “deposited” on a substrate is defined as a coating that (i) is positioned above the substrate, (ii) is not necessarily in contact with the substrate, i.e. one or more intermediate coatings may be disposed between the substrate and the coating in question, and (iii) does not necessarily cover the substrate completely.
- a layer 1 is located under a layer 2"
- it will be understood that the layer 2 is further away from the substrate than the layer 1.
- the optical article prepared according to the invention comprises a substrate, preferably transparent, having front and rear main faces, at least one of said main faces comprising an anti-static antireflection coating, preferably the two main faces.
- rear face (generally concave) of the substrate is meant the face which, when using the article, is closest to the eye of the wearer.
- front face (generally convex) of the substrate means the face which, when using the article, is furthest from the eye of the wearer.
- the article according to the invention may be any optical article, such as a screen or a mirror, it is preferably an optical lens, better an ophthalmic lens, for spectacles, or an optical lens blank. ophthalmic.
- the lens may be a polarized, colored lens or a photochromic lens.
- the ophthalmic lens according to the invention has a high transmission.
- the antireflection coating according to the invention can be formed on at least one of the main faces of a bare substrate, that is to say uncoated, or on at least one of the main faces of a substrate already coated with one or more functional coatings.
- the substrate of the optical article according to the invention is necessarily an organic glass, for example thermoplastic or thermosetting plastic.
- the substrate of the optical article of the invention may be selected from the following families of materials, provided that they verify the water recovery rate characteristic indicated above: the (co) polymers (meth) acrylics, in particular poly (methyl methacrylate) (PMMA), thio (meth) acrylic (co) polymers, polyvinyl butyral (PVB), polyurethanes (PU), poly (thiourethanes), poly (thio) allylcarbonates of polyols, thermoplastic ethylene / vinyl acetate copolymers, polyesters such as polyethylene terephthalate (PET) or polybutylene terephthalate (PBT), polyepoxides, polycarbonate / polyester copolymers, copolymers of cycloolefins such as ethylene / norbornene or ethylene / cyclopentadiene copolymers and combinations thereof.
- the (co) polymers (meth) acrylics in particular poly (methyl methacrylate) (PMMA), thio (me
- the substrates may be obtained by polymerization of monomer mixtures, or may further comprise mixtures of these polymers and copolymers.
- Particularly preferred classes of substrates are poly (thiourethanes), polyepisulfides and resins resulting from the polymerization or copolymerization of alkylene glycol bisalkylcarbonates, provided that they have a water uptake rate greater than or equal to 0. , 6%.
- substrates suitable for the invention are the substrates obtained from the resins of ® MR6, MR7 and MR8 ® ® (thermosetting polythiourethane resins).
- the various substrates based on polythiourethane resins are marketed by Mitsui Toatsu Chemicals and these substrates and the monomers used for their preparation are described in US Pat. Nos. 4,689,387, 4,775,733, 5,059,673, 5,087,758 and 5,191,055.
- the substrates obtained by (co) polymerization of diethylene glycol bis allyl carbonate are also suitable (ORMA ® ESSILOR lenses).
- the base monomer for their synthesis is sold, for example, under the trade name CR- 39® by PPG Industries.
- substrates which are not suitable for the invention, since they have a water uptake rate which is very much less than 0.6%, are the mineral substrates (silica-based glasses), the substrate 1, 74® , which is based on a polyepisulfide resin and resin substrates homopolycarbonate of bisphenol a, marketed through Teijin under the brand PANLITE ® by GENERAL ELECTRIC COMPANY under the name LEXAN ® by Bayer under the brand BAYBLEND ® , by MOBAY CHEMICHAL Corp. under the trademark MAKROLON ® and by DOW CHEMICAL Co. under the trade name CALIBER ® .
- the antireflection coating on the optionally coated substrate for example an anti-abrasion and / or anti-scratch coating
- a physical or chemical activation treatment intended to increase the adhesion of the antireflection coating.
- This pre-treatment is generally conducted under vacuum. It can be a bombardment with energy and / or reactive species, for example an ion beam ("Ion Pre-Cleaning" or "IPC") or an electron beam, a discharge treatment corona, by effluvage, a UV treatment, or vacuum plasma treatment, usually an oxygen or argon plasma. It can also be an acidic or basic surface treatment and / or by solvents (water or organic solvent). Many of these treatments can be combined. Thanks to these cleaning treatments, the cleanliness and reactivity of the surface of the substrate are optimized.
- energetic species and / or reactive is meant in particular ionic species having an energy ranging from 1 to 300 eV, preferably from 1 to 15O eV, better from 10 to 150 eV, and more preferably from 40 to 150 eV.
- the energetic species can be chemical species such as ions, radicals, or species such as photons or electrons.
- the preferred pretreatment of the surface of the substrate is an ion bombardment treatment carried out by means of an ion gun, the ions being particles consisting of gas atoms from which one or more electrons (s) have been extracted.
- Argon (Ar + ions), but also oxygen, or mixtures thereof, are preferably used as argonized gases under an acceleration voltage generally ranging from 50 to 200 V, a current density generally between 10 and 100 ⁇ A / cm 2 on the activated surface, and generally under a residual pressure in the vacuum chamber which can vary from 8.10 -5 mbar to 2.10 -4 mbar.
- the optical article according to the invention comprises an antireflection (or reflective) coating, preferably formed on an anti-abrasion coating.
- the antireflection coating or reflective coating may be any antireflection or reflective coating conventionally used in the field of optics, particularly ophthalmic optics.
- An antireflective coating is defined as a coating deposited on the surface of an optical article that enhances the anti-reflective properties of the final optical article. It reduces the reflection of light at the article-air interface over a relatively large portion of the visible spectrum.
- a reflective coating achieves the opposite effect, ie it increases the reflection of light rays. Such a type of coating is used, for example, to obtain a mirror effect in solar lenses.
- Anti-reflective or reflective coatings can also have one or more absorbent layers in the visible spectrum, leading to optical articles usable for sunglasses.
- antireflection coatings typically comprise a monolayer or multilayer stack of dielectric materials. They are preferably multilayer coatings, including high refractive index layers (H1) and low refractive index layers (B1).
- Reflective coatings consist of layers of the same kind as antireflection coatings, but the refractive indices, the numbers and the thickness of the layers are chosen so that the coating has a reflective effect, which is well known in the art. skilled in the art.
- a layer of the antireflection coating is said layer of high refractive index when its refractive index is greater than 1, 55, preferably greater than or equal to 1, 6, better still greater than or equal to 1, 8 and even more. better than or equal to 2.0.
- a layer of an antireflection coating is called a low refractive index layer when its refractive index is less than or equal to 1.55, preferably less than or equal to 1.50, better still less than or equal to 1.45.
- the refractive indexes referred to in the present invention are expressed at 25 ° C. for a wavelength of 550 nm.
- the H1 layers are conventional high refractive index layers well known in the art. They generally comprise one or more mineral oxides such as, without limitation, zirconia (ZrO 2 ), titanium oxide (TiO 2 ), tantalum pentoxide (Ta 2 O 5 ), neodymium oxide (Nd 2 O 5 ), praseodymium oxide (Pr 2 O 3 ), praseodymium titanate (PrTiO 3 ), La 2 O 3 , Dy 2 O 5 , Nb 2 O 5 , Y 2 O 3 .
- a layer based on SnO 2 constitutes a layer H1 of the antireflection coating.
- Preferred materials are TiO 2 , PrTiO 3 , ZrO 2 , SnO 2 and mixtures thereof.
- At least one layer H1 of the antireflection coating is a layer based on TiO 2 , whose high refractive index is particularly interesting. It is preferably deposited under ionic assistance (IAD), which increases the compression of this layer and thereby its refractive index.
- at least one layer H1 of the antireflection coating is a layer based on PrTiO 3 , the high thermal resistance is particularly interesting.
- the B1 layers are also well known and may include, without limitation, SiO 2 , MgF 2 , ZrF 4 , alumina (Al 2 O 3 ), in a small proportion, AIF 3 , chiolite (Na 3 Al 3 F 14 ]), cryolite (Na 3 [AlF 6 ]), and their mixtures, preferably SiO 2 or SiO 2 doped with alumina, which contributes to increasing the thermal resistance of the antireflection coating. It is also possible to use SiOF layers (fluorine-doped SiO 2 ).
- LI layer comprising a mixture of SiO 2 and Al 2 ⁇ 3
- it preferably comprises from 1 to 10%, more preferably from 1 to 8% and more preferably 1 to 5% by weight of Al 2 O 3 relative to the total mass of SiO 2 + Al 2 O 3 in this layer. Too high a proportion of alumina may be unfavorable to the adhesion of the AR coating and would increase the refractive index of this layer too much.
- at least one layer B1 of the antireflection coating comprises a mixture of SiO 2 and Al 2 O 3 , preferably consisting of a mixture of SiO 2 and Al 2 O 3 .
- a preferred embodiment of the invention consists in using one or more layers B1 comprising a mixture of SiO 2 and Al 2 O 3 in the antireflection coatings according to the invention, making it possible to obtain anti-reflective coatings that are both antistatic. and having an improved critical temperature, i.e. exhibiting good crack resistance when subjected to a rise in temperature.
- the inventors have found that, in the stacks of the invention, the presence of one or more layers B1 comprising a mixture of SiO 2 and Al 2 O 3 could contribute and even very significantly enhance the presence of cosmetic defects.
- the inventors have found that it is preferable to deposit these SiO 2 / Al 2 O 3 mixed layers by introducing into the deposition chamber, during the deposition of these, a gas, preferably a rare gas such as argon, xenon, krypton, neon or oxygen or a mixture of two or more of these gases.
- the invention provides a preferential antireflection coating, comprising at least one electroconductive layer comprising at least 30% by weight of SnO 2 and at least one layer of low refractive index SiO 2 / Al 2 O 3 deposited with gas supply in the vacuum chamber during said deposition.
- This gas supply makes it possible to regulate the pressure in the deposition chamber during the deposition of the SiO 2 / Al 2 O 3 layer.
- the recommended pressure range in the chamber during the supply of the gas or gases generally varies from 5.10 "5 to 3.10 " 4 mbar, preferably 1.10 "4 to 3.10 " 4 mbar and better 1, 5.1U “4 to 3.10 " 4 mbar.
- This gas supply is different from an ion bombardment treatment such as an ionic assist (IAD), and is also distinguished from a step of evaporation of materials such as SiO 2 and Al 2 O 3 .
- IAD ion bombardment treatment
- SiO 2 and Al 2 O 3 ion bombardment treatment
- IAD ionic assist
- the layers H1 have a physical thickness varying from 10 to 120 nm
- the layers B1 have a physical thickness varying from 10 to 100 nm.
- the total thickness of the antireflection coating is less than 1 micrometer, better still less than or equal to 800 nm and better still less than or equal to 500 nm.
- the total thickness of the antireflection coating is generally greater than 100 nm, preferably greater than 150 nm.
- the antireflection coating comprises at least two layers of low refractive index (B1) and at least two layers of high refractive index (H1).
- the total number of layers of the antireflection coating is less than or equal to 8, better still less than or equal to 6.
- the layers H1 and B1 are alternated in the antireflection coating, although they may be alternated according to one embodiment of the invention. Two or more layers H1 may be deposited one on top of the other, just as two or more layers B1 (or more) can be deposited one on top of the other.
- the antireflection coating comprises an underlayer.
- it generally constitutes the first layer of this antireflection coating in the order of deposition of the layers, that is to say the layer of the antireflection coating which is in contact with the underlying coating (which is generally the anti-reflective coating). abrasion and anti-scratch) or the substrate, when the antireflection coating is directly deposited on the substrate, except in the particular case where a tin oxide-based layer according to the invention constitutes the first layer of the antireflection coating.
- underlayer of the anti-reflective (or reflective) coating, or adhesion layer is meant a coating of relatively large thickness, used for the purpose of improving the resistance to abrasion and / or scratching of said coating and / or or to promote its adhesion to the underlying substrate or coating.
- the underlayer Because of its relatively large thickness, the underlayer generally does not participate in the anti-reflective (or reflective) optical activity, particularly in the case where it has a refraction index close to the bare substrate, if the sub-layer layer is deposited on the bare substrate, or coating if the underlayer is deposited on a coated substrate. In the remainder of the description, the underlayer will be distinguished from the layers of the antireflection coating deposited on this sublayer, describing them as optical layers, as opposed to the sublayer which does not constitute a layer having an optical effect. .
- the underlayer should be of sufficient thickness to promote the abrasion resistance of the antireflection coating, but preferably not so great as not to cause light absorption which, depending on the nature of the underlayer, could significantly reduce the wear factor. relative transmission ⁇ v .
- the underlayer preferably comprises a layer based on SiO 2 , with a thickness preferably greater than or equal to 75 nm, more preferably greater than or equal to 80 nm, better still greater than or equal to 100 nm and better still greater than or equal to at 150 nm. Its thickness is generally less than 250 nm, better still less than 200 nm.
- the underlayer consists of a layer of SiO 2 .
- Said SiO 2 -based layer may comprise, in addition to silica, one or more other materials conventionally used for the manufacture of underlays, for example one or more materials chosen from the dielectric materials described previously in the present description. It is preferable to use a monolayer underlayer. However, the underlayer can be laminated (multilayer). The sub-layers that can be used in the context of the present invention are described in more detail in the applications WO 2008/107325 and WO 2009/004222, which are incorporated herein by reference.
- the different layers of the antireflection coating are preferably deposited by vacuum deposition according to one of the following techniques: i) by evaporation, possibly assisted by ion beam; ii) ion beam sputtering; iii) sputtering; iv) plasma enhanced chemical vapor deposition.
- each of the layers of the antireflection coating is carried out by evaporation under vacuum.
- IAD ion assisted deposition
- Ion assisted evaporation consists of depositing a film of a material on a substrate by evaporation under vacuum by simultaneously bombarding the surface of the substrate with an ion beam emitted by an ion gun, the ions being particles consisting of gas atoms from which one or more electron (s) have been extracted.
- the ion bombardment causes an atomic rearrangement in the layer being deposited, which allows it to be compacted while it is being formed.
- the IAD makes it possible to improve the adhesion of the deposited layers and to increase their refractive index.
- a bombardment of the surface to be treated with oxygen ions with a current density generally between 10 and 200 ⁇ A / cm 2 , preferably between 30 and 100 ⁇ A / cm 2 on the activated surface and generally under a residual pressure in the vacuum chamber may vary from 6.10 "5 mbar to 2.10 " 4 mbar, preferably from 8.10 "5 mbar to 2.10 " 4 mbar.
- Other ionized gases may be used in combination or not with oxygen, such as argon, nitrogen, especially a mixture of O 2 and argon in a volume ratio of 2: 1 to 1: 2 .
- physical or chemical activation treatments can be carried out on the surface of one or more layers of the antireflection coating before the deposition of the subsequent layer, in particular on the surface of the penultimate layer of this coating and or on the surface of the underlayer, when present.
- the physical or chemical activation treatment may be chosen from the pretreatments to which the substrate may be subjected and which have already been presented above.
- the preferred pretreatment is ion bombardment.
- the article of the invention is made antistatic by incorporating, into the antireflection coating, at least one electrically conductive layer comprising at least 30%, preferably at least 40% and better still at least 50% by mass.
- tin oxide SnO 2
- This layer is commonly referred to herein as a "tin oxide layer.”
- the mass proportion of tin oxide in said electrically conductive layer is greater than or equal to one of the following values: 70%, 75%, 80%, 90%, 95%, 97%, 99%, 99.5%, 99.9%, 99.95%.
- said electrically conductive layer consists of a layer of SnO 2 .
- Said tin oxide layer according to the invention may contain other constituents, in particular metal oxides, in particular electrically conductive metal oxides, which are preferably highly transparent. It may especially comprise titanium oxide and / or zinc oxide.
- the electrically conductive layer of the invention does not contain indium, regardless of its form, for example indium metal or indium oxide.
- the electrically conductive layer may be located at different locations on the antireflection coating, provided that its antireflection properties are not disturbed.
- the underlayer when present, that is to say be interposed between the underlayer and the other layers of the antireflection coating. It can also be deposited under the underlayer (when present), that is to say be interposed between the underlayer and the substrate optionally coated with functional coatings. More generally, it may constitute the first layer of the antireflection coating (in the order of deposition), that is to say be directly deposited on the substrate optionally coated with functional coatings. It is preferably located between two optical dielectric layers of the antireflection coating, and / or under a low refractive index optical layer of the antireflection coating.
- the SnO 2 -based layer constitutes the second-last layer of the antireflection coating in the stacking order, the last layer of said antireflection coating being preferably a layer B1.
- said layer based on SnO 2 does not constitute the last layer (outer layer) of the antireflection coating. According to another particular embodiment of the invention, said layer based on SnO 2 is not the first layer of the antireflection coating.
- the electrically conductive layer must be thin enough not to alter the transparency of the antireflection coating. Generally, its thickness varies from 0.1 to 150 nm, better from 0.1 to 50 nm. A thickness of less than 0.1 nm generally does not provide sufficient electrical conductivity, whereas a thickness greater than 150 nm generally does not provide the required transparency and low absorption characteristics. Its thickness preferably varies from 0.1 to 30 nm, better still from 1 to 20 nm and more preferably from 1 to 15 nm. According to one embodiment of the invention, the thickness of said electrically conductive layer is greater than or equal to 6 nm. All thicknesses indicated in this application are physical thicknesses.
- the SnO 2 -based electrically conductive layer contributes to obtaining anti-reflective properties, particularly when it is not located below a possible sub-layer, and constitutes a layer of high refractive index. in the antireflection coating (refractive index of the order of 2).
- the deposition of said electrically conductive layer is carried out under ionic assistance, a technique which has been described previously in order to reduce the visible absorption of the SnO 2 -based layer and to obtain good adhesion .
- the inventors have found that it was possible to increase the force of the ion bombardment during the deposition of a conductive layer containing a sufficient content of SnO 2 without significantly increasing the frequency of cosmetic defects appearing later, whereas on the contrary such an increase in the force of the ion bombardment generally gives rise to a significant increase in cosmetic defects for the layers subjected to such bombardment, in particular conductive layers based on conductive metal oxides.
- the antireflection coating comprises, in addition to at least one, preferably only one, electrically conductive layer which gives antistatic properties to the article, at least four dielectric layers, preferably four or five.
- the antireflection coating of the invention comprises, in the order of deposition on the surface of the optionally coated substrate, a ZrO 2 layer, generally 10 to 40 nm thick and preferably 15 to 35 nm, a layer of SiO 2 or SiO 2 / Al 2 ⁇ 3 , generally 10 to 40 nm thick and preferably 15 to 35 nm, a ZrO 2 or TiO 2 layer, generally 40 to 150 nm thick, preferably from 50 to 120 nm, a SnO 2 -based layer according to the invention, preferably a SnO 2 layer, generally from 4 to 25 nm thick and preferably from 5 to 20 nm, and a SiO 2 or SiO 2 / Al 2 O 3 layer, generally 40 to 150 nm thick, preferably
- the antireflection coating can be deposited directly on a bare substrate.
- the main surface of the substrate is coated with one or more functional coatings prior to deposition of the antireflection coating of the invention.
- These functional coatings conventionally used in optics may be, without limitation, a layer of shockproof primer, an anti-abrasion and / or anti-scratch coating, a polarized coating, a photochromic coating or a colored coating, in particular a layer of shockproof primer coated with an anti-abrasion and / or anti-scratch layer.
- the antireflection coating is preferably deposited on an anti-abrasion and / or anti-scratch coating.
- the anti-abrasion and / or anti-scratch coating may be any layer conventionally used as an anti-abrasion and / or anti-scratch coating in the field of ophthalmic lenses.
- the abrasion-resistant and / or scratch-resistant coatings are preferably hard coatings based on poly (meth) acrylates or silanes, generally comprising one or more mineral fillers intended to increase the hardness and / or the refractive index of the coating once cured.
- (meth) acrylate is meant an acrylate or a methacrylate.
- the hard anti-abrasion and / or anti-scratch coatings are preferably prepared from compositions comprising at least one alkoxysilane and / or a hydrolyzate thereof, obtained for example by hydrolysis with a hydrochloric acid solution, and optionally condensation and / or curing catalysts and / or surfactants.
- coatings based on epoxysilane hydrolysates such as those described in patents EP 0614957, US Pat. No. 4,221,823 and US Pat. No. 5,015,523.
- a preferred anti-abrasion and / or anti-scratch coating composition is that disclosed in EP 0614957, in the name of the applicant. It is described in the experimental part.
- the anti-abrasion and / or anti-scratch coating composition may be deposited on the main surface of the substrate by dipping or centrifugation. It is then cured by the appropriate route (preferably thermal, or UV).
- the thickness of the anti-abrasion and / or anti-scratch coating generally varies from 2 to 10 ⁇ m, preferably from 3 to 5 ⁇ m.
- a primer coating improving the impact resistance and / or the adhesion of the subsequent layers in the final product.
- This coating may be any layer of shockproof primer conventionally used for articles made of transparent polymeric material, such as ophthalmic lenses.
- compositions based on thermoplastic polyurethanes such as those described in patents JP 63-141001 and JP 63-87223, poly (meth) acrylic primer compositions, such as those described in US Pat. No. 5,015,523, compositions based on thermosetting polyurethanes, such as those described in patent EP 040411 1 and compositions based on poly (meth) acrylic latex or polyurethane type latex, such as those described in US Pat. 5,316,791 and EP 0680492.
- the preferred primer compositions are polyurethane-based compositions and latex-based compositions, particularly polyurethane and poly (meth) acrylic latices, and mixtures thereof.
- the poly (meth) acrylic latexes are latexes of copolymers consisting mainly of a (meth) acrylate, such as for example ethyl (meth) acrylate, butyl, methoxyethyl or ethoxyethyl, with a generally minor proportion of at least one other comonomer, such as, for example, styrene.
- a (meth) acrylate such as for example ethyl (meth) acrylate, butyl, methoxyethyl or ethoxyethyl
- at least one other comonomer such as, for example, styrene.
- Witcobond ® 232 compositions Witcobond ® 234, Witcobond ® 240, Witcobond ® 242 (commercially available from Baxenden Chemicals), Neorez ® R-962, Neorez R-972 ® , Neorez ® R-986 and Neorez ® R-9603 (marketed by ZENECA RESINS).
- primer compositions may be deposited on the faces of the article by dipping or centrifugation and then dried at a temperature of at least 70 ° C. and up to 100 ° C., preferably of the order of 90 ° C. for a period of 2 minutes to 2 hours, generally of the order of 15 minutes, to form primer layers having thicknesses, after curing, of 0.2 to 2.5 ⁇ m, preferably of 0.5 to 1.5 ⁇ m.
- the optical article according to the invention may also comprise coatings formed on the antireflection coating and capable of modifying its surface properties, such as hydrophobic and / or oleophobic coatings (anti-fouling top coat). These coatings are preferably deposited on the outer layer of the antireflection coating. Their thickness is generally less than or equal to 10 nm, preferably from 1 to 10 nm, more preferably from 1 to 5 nm.
- fluorosilane or fluorosilazane type coatings are generally fluorosilane or fluorosilazane type coatings. They can be obtained by depositing a fluorosilane or fluorosilazane precursor, preferably comprising at least two hydrolyzable groups per molecule.
- the precursor fluorosilanes preferentially contain fluoropolyether groups and better still perfluoropolyether groups.
- fluorosilanes are well known and are described, inter alia, in US Patents 5,081, 192, US 5,763,061, US 6,183,872, US 5,739,639, US 5,922,787, US 6,337,235, US 6,277,485 and EP 0933377.
- a preferred hydrophobic and / or oleophobic coating composition is marketed by Shin-Etsu Chemical under the name KP 801 M® .
- Another preferred hydrophobic and / or oleophobic coating composition is marketed by
- Daikin Industries under the name OPTOOL DSX ® . It is a fluorinated resin comprising perfluoropropylene groups.
- an optical article according to the invention comprises a substrate successively coated with a layer of shockproof primer, an anti-abrasion and / or anti-scratch coating, an anti-reflective (or reflective) and antistatic coating according to the invention and a hydrophobic and / or oleophobic coating.
- a layer based on tin oxide in an antireflection coating has several advantages with respect to optical articles with anti-reflective properties including an antistatic layer made of materials such as I 1 ITO oxide of indium or zinc oxide.
- layers of ITO, indium oxide (In 2 O 3 ), zinc oxide or doped zinc oxide all lead to the appearance of cosmetic defects when they are included in a coating antireflection deposited on a substrate according to the invention, that is to say having a water uptake rate greater than or equal to 0.6% by weight, which is not the case of a layer based on of SnO 2 according to the invention.
- an antistatic layer based on ITO has the disadvantage of absorbing in the visible range more significantly than a layer of SnO 2 of the same thickness, its yellow level being higher. This defect is clearly visible for relatively low layer thicknesses, a layer of ITO appearing generally yellow at thicknesses of the order of 13 nm, despite ion assisted deposition, the substrate being viewed visually on its edge, then that a layer of SnO 2 50 nm thick is still transparent.
- the process according to the invention involving tin oxide is easier to control than the corresponding method involving I 1 ITO, thereby improving productivity.
- the different layers of the antireflection coating of the invention have good adhesion properties, especially at the interface with the substrate.
- the adhesion properties of the entire anti-reflective coating to the substrate have been verified through the test commonly called "n ⁇ 10 shots", following the procedure described in international patent application WO 99/49097.
- the optical article according to the invention does not absorb in the visible or absorbs little in the visible, which means, within the meaning of the present application, that its factor in the visible transmission ⁇ v , also called visible relative transmission factor, is greater than 90%, better than 95%, better still greater than 96% and optimally greater than 97%.
- the factor ⁇ v meets a standardized international definition (ISO 13666: 1998) and is measured in accordance with ISO 8980-3. It is defined in the wavelength range from 380 to 780 nm.
- the light absorption of the coated article according to the invention is less than or equal to 1%.
- the average factor of reflection in the visible range (400-700 nm) of an article coated with an antireflection coating according to the invention is less than 2.5% per side, better lower at 2% per side and better still less than 1% per face of the article.
- the article comprises a substrate whose two main surfaces are coated with an antireflection coating according to the invention and has a total value of R m (cumulative reflection due to the two faces) of less than 1%. preferably between 0.7 and 0.8%.
- the means for achieving such values of R m are well known to those skilled in the art.
- the light reflection factor Rv of an antireflection coating according to the invention is less than 2.5% per side, preferably less than 2% per side, better than 1% per face of the article, better ⁇ 0.75%, better still ⁇ 0.5% and optimally ⁇ 0.4%.
- the "average reflection factor" R m average of the spectral reflection over the entire visible spectrum between 400 and 700 nm
- the light reflection factor R v are as defined in the ISO 13666 standard. : 1998, and measured in accordance with ISO 8980-4.
- optical articles according to the invention have a discharge time (or dissipation time of a static charge) ⁇ 500 milliseconds.
- Optical articles according to the invention can even achieve discharge times ⁇ 200 milliseconds and better ⁇ 100 and more preferably ⁇ 75 milliseconds.
- their antistatic properties are stable over time, which means that the characteristics relating to the discharge time stated above are further verified at least 6 months after the manufacture of optical articles.
- the following examples illustrate the invention in a more detailed but nonlimiting manner.
- optical articles used in the examples include a lens substrate
- ORMA ® ESSILOR with a diameter of 65 mm, a power of -2.00 diopters and a thickness of 1.2 mm, coated with: i) a shockproof primer coating based on a polyurethane latex containing polyester units, hardened to 90 0 C for 1 hour (Witcobond ® 234 from Baxenden Chemicals, spin-coating at 1500 revolutions / minute for 10 to 15 seconds); ii) the anti-abrasion and anti-scratch coating (hard coat) disclosed in example 3 of patent EP 0614957 (of refractive index equal to 1.50), based on a hydrolyzate of epoxy trialkoxysilane ( ⁇ glycidoxypropyltrimethoxysilane, GLYMO) and dialkyl dialkoxysilane (dimethyldiethoxysilane, DMDES), colloidal silica and aluminum acetylacetonate; (iii) an anti-reflective coating; and i) an anti-fouling
- Said anti-abrasion and anti-scratch coating was obtained by deposition and curing of a composition
- a composition comprising, by mass, 224 parts of GLYMO, 80.5 parts of 0.1 N HCl, 120 parts of DMDES, 718 parts of colloidal silica. 30% by weight in methanol, 15 parts of aluminum acetylacetonate (hardening catalyst) and 44 parts of ethylcellosolve.
- the composition also comprises 0.1% FLUORAD TM FC-430 surfactant 3M ® by weight based on the total weight of the composition.
- the layers of the antireflection coating were deposited without heating the substrates by vacuum evaporation, possibly, when specified, assisted by oxygen ion beam during deposition (evaporation source: electron gun).
- the antifouling coating composition was obtained by vacuum evaporation of the Optool DSX compound ® from Daikin Industries (thickness: 1-5 nm).
- the deposit frame is a BAK 760 Physimeca machine equipped with an electron gun (8kV) for the evaporation of oxides, a Joule crucible for the deposition of the top coat and a Commonwealth Mark II ion gun. powered by a Veeco power supply for the preliminary phase of preparation of the substrate surface by argon ions (IPC), as well as for ion-assisted layer deposition (IAD).
- IPC argon ions
- IAD ion-assisted layer deposition
- the antistatic layers are formed according to the invention from SnO 2 granules supplied by Cerac (Reference: T-1218, diameter: 3-12mm, item no .: H618828 purity: 99.9%), and in the comparative examples from ITO granules (mass percentage tin oxide (5) -indium oxide (95)) supplied by Optron Inc.
- the other layers of the antireflection coating are formed from ZrO 2 pellets (Umicore) or Si ⁇ 2 (Optron Inc.).
- the method of preparing the optical articles comprises introducing the substrate coated with the primer coating and the abrasion-resistant coating described above into a vacuum deposition chamber, a pumping step to obtain a secondary vacuum, a step of activation of the substrate surface by an argon ion beam (IPC: 1 minute, 100 V, 1 A), stopping the ion irradiation, and the deposition by evaporation: d a ZrO 2 layer with a deposition rate of 0.3 nm / s, - a SiO 2 layer with a speed of 0.7 nm / s, a ZrO 2 layer with a velocity of 0 , 3 nm / s, of an electrically conductive layer under assistance of oxygen ions (1, 2A / 100V) with a speed of 0.15 nm / s (SnO 2 , or ITO for the comparative examples), of a SiO 2 layer with a speed of 1 nm / s, - a layer
- the thicknesses mentioned above in the deposition rates are physical thicknesses
- the abrasion resistance was evaluated by determining the BAYER ASTM (Bayer sand) and Bayer ISTM (Bayer alumina) values on the substrates coated with the antireflection coating according to the methods described in the application WO 2008/001011 (ASTM standard F 735.81). .
- BAYER ASTM Bath sand
- Bayer ISTM Bayer alumina
- Bayer ASTM (Bayer sand) is rated good when R is greater than or equal to 3.4 and less than 4.5.
- the value of Bayer ISTM is qualified as good when R is greater than or equal to 3 and less than 4.5.
- the value of Bayer Sable or ISTM is rated excellent for values of 4.5 and above.
- test n ⁇ 10 shots The qualitative test known as the test name "n ⁇ 10 shots" used to evaluate the adhesion properties of a film deposited on a substrate, including membership of an antireflection coating to an ophthalmic lens substrate. It was made on the convex face of the lenses by following the procedure described in the international application WO 99/49097.
- a solicitation (or cycle) consists of 10 times a return of the eraser (eraser). The operator visually checked the state of the lens tested every 3 requests up to 9 requests. The assessment consists of raising the number of stresses that can support a lens before the appearance of a defect. In the context of the present patent application, it is considered that the lens has passed the test if the lens is intact after 9 stresses.
- the discharge times of the optical articles were measured at ambient temperature (25 ° C.) by means of a JCI 155 discharge time measuring apparatus (John Chubb Instrumentation) according to the manufacturer's specifications, after having submitted said optical items at a corona discharge of -9000 volts for 30 ms.
- the power of the glasses used must be strictly the same in order to be able to compare the performance of the different glasses, because the values measured by the apparatus depend on the geometry of the glasses.
- This test is performed on a bare optical article substrate and makes it possible to determine which substrates are subject to the appearance of cosmetic defects over time, once coated with an antireflection coating comprising a conventional antistatic layer, that is to say a layer which does not include tin oxide in the proportions according to the invention.
- the inventors have developed this test which gives a good correlation between the water uptake rate of a bare substrate and its ability to give rise to the appearance of cosmetic defects once it has undergone anti-reflective and antistatic treatment. .
- the bare substrate Before being introduced into the storage chamber in order to determine its water uptake rate, the bare substrate is dried (dehydrated) in an oven or enclosure at 45 ° C. for 48 h at atmospheric pressure, without using any means of additional dehydration. During this dehydration, the humidity level in the oven is close to 0%.
- the substrate is then stored for 800 hours in an enclosure at 50 0 C saturated with water, that is to say under a relative humidity (RH) of 100%, and at atmospheric pressure.
- RH relative humidity
- the water uptake rate of the bare substrate is determined by an AT261 (Mettler Toledo) scale, by weighing the dehydrated substrate and the substrate approximately 30 seconds after its exit from the wet storage chamber, according to the equation:
- the speakers used were HERAEUS Instruments D6450 HANAU Type UT 6060 speakers.
- the substrates were obtained from the resins MR6 ®, ® MR7, MR8 ® sold by Mitsui Toatsu Chemicals Inc. ® MR6, MR7 and MR8 ® ® are thio-urethane resins (leading to thermosetting polythiourethane).
- the substrates obtained from MR6 ® have a refractive index of 1, 59 and an Abbe number of 36. Those obtained from MR7 ® have a refractive index of 1, 66 and an Abbe number of 32
- the resin 1, 74 ® is a polyepisulphide resin having a refractive index of 1.74.
- the polycarbonate substrate used is a homopolycarbonate resin of bisphenol-A refractive index of 1, 59 marketed by TEIJIN as PANLITE ®.
- the mineral glass substrate (silica based) used is an Essilor refractive index glass equal to 1.253.
- the ORMA ® substrates and those obtained from the MR6 ® , MR7 ® , MR8 ® resins are substrates according to the invention because they have a water uptake rate greater than or equal to 0.6% by weight relative to the total mass of the substrate under the test conditions presented above.
- the substrates 1, 74 ® , polycarbonate (PC) and mineral glass are not substrates according to the invention because they have a water uptake rate of less than 0.6% by weight relative to the total mass of the substrate under the test conditions presented above.
- the problem of the appearance of cosmetic defects does not arise for these substrates. They have no cosmetic defects, whether the antistatic layer is based on SnO 2 or ITO (see Table 3).
- Example 2 and Comparative Example C2 were reproduced using substrates other than the ORMA ® substrate (Examples 3 and 4 and Comparative Examples C3 to C10). The results are shown in Table 3, which recalls the results of Example 2 and Comparative Example C2.
- the lenses according to the invention comprising a layer of SnO 2 in the antireflection coating and a substrate having a water uptake rate greater than or equal to 0.6% by weight relative to the total mass of the substrate in the test conditions presented above have no cosmetic defect (Example 2-4).
- the comparative lenses comprising an ITO layer in the antireflection coating and a substrate having a water uptake rate greater than or equal to 0.6% by weight relative to the total mass of the substrate under the conditions of test presented above have cosmetic defects (Comparative Examples C2 to C5).
- substrates based on 1. 74 ® , polycarbonate (PC) and mineral glass have no cosmetic defects after two months, the antistatic layer is based on SnO 2 or ITO.
- Example 4 was reproduced by replacing the SnO 2 layer at a purity of 99.9% by the following mixtures:
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Abstract
Description
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Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
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EP18193883.8A EP3432039B1 (fr) | 2009-03-27 | 2010-03-26 | Article d'optique revêtu d'un revêtement antireflet ou réfléchissant comprenant une couche électriquement conductrice à base d'oxyde d'étain et procédé de fabrication |
EP10716588.8A EP2411850B2 (fr) | 2009-03-27 | 2010-03-26 | Article d'optique revêtu d'un revêtement antireflet ou réfléchissant comprenant une couche électriquement conductrice à base d'oxyde d'étain et procédé de fabrication |
EA201101392A EA022784B1 (ru) | 2009-03-27 | 2010-03-26 | Оптический элемент с антибликовым или отражающим покрытием, содержащим электропроводящую пленку на основе оксида олова, и способ его изготовления |
MX2011010103A MX2011010103A (es) | 2009-03-27 | 2010-03-26 | Artículo óptico recubierto con un recubrimiento antireflectivo que consiste en una película conductora de electricidad fabricada de óxido de estaño y método de producción. |
BRPI1016050-7A BRPI1016050B1 (pt) | 2009-03-27 | 2010-03-26 | Artigo de óptica com propriedades antiestáticas e anti-reflexo ou reflexivas, processo de fabricação do mesmo, e, utilização de uma camada |
CN201080022914.8A CN102449507B (zh) | 2009-03-27 | 2010-03-26 | 涂有包含基于氧化锡的导电薄膜的抗反射或反射涂层的光学制品及其制造方法 |
JP2012501364A JP2012522259A (ja) | 2009-03-27 | 2010-03-26 | 酸化スズに基づく導電膜を有する反射防止または反射コーティングを塗膜した光学物品、および製造方法 |
ES10716588.8T ES2621967T3 (es) | 2009-03-27 | 2010-03-26 | Artículo óptico revestido con un revestimiento antirreflectante o reflectante que comprende una capa eléctricamente conductora a base de óxido de estaño y procedimiento de fabricación |
US13/260,695 US8591026B2 (en) | 2009-03-27 | 2010-03-26 | Optical article coated with an antireflection or reflective coating comprising an electrically conductive film based on tin oxide, and production method |
EP17150894.8A EP3190436B1 (fr) | 2009-03-27 | 2010-03-26 | Article d optique revêtu d'un revêtement antireflet ou réfléchissant comprenant une couche électriquement conductrice à base d oxyde d étain et procédé de fabrication |
CA2757168A CA2757168C (fr) | 2009-03-27 | 2010-03-26 | Article d'optique revetu d'un revetement antireflet ou reflechissant comprenant une couche electriquement conductrice a base d'oxyde d'etain et procede de fabrication |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR0901475A FR2943798B1 (fr) | 2009-03-27 | 2009-03-27 | Article d'optique revetu d'un revetement antireflet ou reflechissant comprenant une couche electriquement conductrice a base d'oxyde d'etain et procede de fabrication |
FR0901475 | 2009-03-27 |
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WO2010109154A1 true WO2010109154A1 (fr) | 2010-09-30 |
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PCT/FR2010/050564 WO2010109154A1 (fr) | 2009-03-27 | 2010-03-26 | Article d'optique revêtu d'un revêtement antireflet ou réfléchissant comprenant une couche électriquement conductrice à base d'oxyde d'étain et procédé de fabrication |
Country Status (12)
Country | Link |
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US (1) | US8591026B2 (fr) |
EP (3) | EP3432039B1 (fr) |
JP (4) | JP2012522259A (fr) |
CN (1) | CN102449507B (fr) |
BR (1) | BRPI1016050B1 (fr) |
CA (1) | CA2757168C (fr) |
EA (2) | EA022784B1 (fr) |
ES (2) | ES2701377T3 (fr) |
FR (1) | FR2943798B1 (fr) |
MX (1) | MX2011010103A (fr) |
TR (1) | TR201819081T4 (fr) |
WO (1) | WO2010109154A1 (fr) |
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- 2010-03-26 EP EP10716588.8A patent/EP2411850B2/fr active Active
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- 2010-03-26 EA EA201500603A patent/EA027776B1/ru not_active IP Right Cessation
- 2010-03-26 US US13/260,695 patent/US8591026B2/en active Active
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- 2010-03-26 TR TR2018/19081T patent/TR201819081T4/tr unknown
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Also Published As
Publication number | Publication date |
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CN102449507A (zh) | 2012-05-09 |
CN102449507B (zh) | 2015-03-11 |
EP2411850B2 (fr) | 2020-02-26 |
EP3190436A1 (fr) | 2017-07-12 |
ES2621967T3 (es) | 2017-07-05 |
EA027776B1 (ru) | 2017-08-31 |
EP3432039B1 (fr) | 2022-12-14 |
JP2017215591A (ja) | 2017-12-07 |
CA2757168A1 (fr) | 2010-09-30 |
EA022784B1 (ru) | 2016-03-31 |
JP2020034924A (ja) | 2020-03-05 |
EP3432039A1 (fr) | 2019-01-23 |
EA201101392A1 (ru) | 2012-03-30 |
EP3190436B1 (fr) | 2018-09-12 |
EA201500603A1 (ru) | 2015-09-30 |
FR2943798A1 (fr) | 2010-10-01 |
FR2943798B1 (fr) | 2011-05-27 |
JP2012522259A (ja) | 2012-09-20 |
TR201819081T4 (tr) | 2019-01-21 |
EP2411850B1 (fr) | 2017-01-11 |
EP2411850A1 (fr) | 2012-02-01 |
ES2701377T3 (es) | 2019-02-21 |
MX2011010103A (es) | 2011-12-16 |
US8591026B2 (en) | 2013-11-26 |
BRPI1016050A2 (pt) | 2016-05-10 |
BRPI1016050B1 (pt) | 2020-02-18 |
CA2757168C (fr) | 2015-11-24 |
JP2016028279A (ja) | 2016-02-25 |
US20120013845A1 (en) | 2012-01-19 |
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