Abstract: The present disclosure provides a method for modification of surface of an initial optical fiber preform. The initial optical fiber preform is manufactured using at least one preform manufacturing process. The surface of the initial optical fiber preform is treated with 50-70 liters of chlorine per square meter of the surface of the initial optical fiber preform. The surface of the initial optical fiber preform is flame polished using a flame polishing module. The treatment of the surface of the initial optical fiber preform with chlorine and flame polishing of the surface of the initial optical fiber preform collectively converts the initial optical fiber preform into a modified optical fiber preform.

Abstract: Organosilane condensates are described as well as their use in coating compositions, processes for making them and process for applying the coating compositions. The organosilane condensates can be formed from the hydrolysis of at least one medium to long chain trialkoxy silane compound, an amino silane and optionally one or more additional reactants. Coating compositions containing the organosilane condensates can provide coatings having improved scratch and mar resistance and can have excellent recoat adhesion.

Abstract: A method of preparing and decontaminating a substrate surface to remove contaminants including the steps of applying a first dry or fluid composition having a pH of 4 or less comprising an acidifier and an oxidizer, allowing the first composition to remain on the substrate surface for a predetermined period of time, and rinsing the first composition from the substrate surface with a second composition having a pH of 8 or more comprising an alkaline material liquid mixture formed utilizing activated carbon filtered potable water to achieve a neutral pH condition on the surface, and then applying a nanotubes coating on the surface.

Abstract: The invention relates to an article comprising a substrate and a nano-porous coating, wherein the reflectivity of the article is less then 2%, and whereby the amount of sodium measured in the coating by XPS is less then 1 wt %, and further to a method of making the article.

Abstract: A low index of refraction hybrid optical cladding may be formed from a fluorinated sol-gel. An electro-optic device may include a poled organic chromophore-loaded modulation layer (electro-optic polymer) and at least one adjacent fluorinated hybrid sol-gel cladding layer.

Abstract: The invention relates to a method for fluorinating a soot body. The method involves: a) providing a soot body, and b) treating the soot body with a gas mixture containing hydrogen and CnF2n+2 (n=1 or 2) at a temperature in the range of (1,280-n*250)° C. to (1,220-n*100)° C.

Abstract: An array of color filter elements may be formed over an array of photodiodes in an integrated circuit for an imaging device using a carrier substrate. The carrier substrate may have a planar surface with a release layer. A layer of color filter material may be applied to the release layer. The carrier substrate may then be flipped and the layer of color filter material may be bonded to the integrated circuit. Heat may be applied to activate the release layer and the carrier substrate may be removed at the interface between the release layer and the color filter material. The layer of color filter material may be patterned either before bonding the layer of color filter material or after the carrier substrate is removed. A layer of microlenses may be formed over the array of color filter elements using a carrier substrate.

Abstract: A known method for producing synthetic quartz glass comprises the method steps of: forming a stream of a SiO2 feedstock material which contains octamethylcyclotetrasiloxane (D4) as the main component which has a reference molecular mass assigned to it, feeding the stream to a reaction zone in which the feedstock material is converted under formation of amorphous SiO2 particles by pyrolysis or hydrolysis into SiO2, depositing the amorphous SiO2 particles on a deposition surface while forming a porous SiO2 soot body, and vitrifying the SiO2 soot body while forming the synthetic quartz glass.

Abstract: The present invention relates to a method for producing synthetic quartz glass, comprising the steps of: providing a liquid SiO2 feedstock material (105), which comprises more than 70% by wt. of the octamethylcyclotetrasiloxane D4, vaporizing the SiO2 feedstock material (105) into a gaseous SiO2 feedstock vapor (107), converting the SiO2 feedstock vapor (107) into SiO2 particles, depositing the SiO2 particles on a deposition surface (160) while forming a SiO2 soot body (200), vitrifying the SiO2 soot body (200) while forming the synthetic quartz glass. According to the invention it is provided that vaporizing the heated SiO2 feedstock material (105) comprises an injection phase in an expansion chamber (125) in which the heated SiO2 feedstock material (105) is atomized into droplets, the droplets having a mean diameter of less than 5 pm, preferably less than 2 ?m.

Abstract: A method for producing synthetic quartz glass comprises providing a liquid SiO2 feedstock material containing mainly octamethylcyclotetrasiloxane D4, vaporizing the SiO2 feedstock material into a feedstock vapor, converting the feedstock vapor into SiO2 particles, depositing the SiO2 particles on a deposition surface while forming a porous SiO2 soot body, and vitrifying the SiO2 soot body while forming the synthetic quartz glass. To produce large-volume cylindrical soot bodies with outer diameters of more than 300 mm of improved material homogeneity, the liquid feedstock material contains additional components comprising hexamethylcyclotrisiloxane D3 and its linear homolog with a weight fraction mD3, dodecamethylcyclohexasiloxane D6 and its linear homolog with a weight fraction mD6, and tetradecamethylcycloheptasiloxane D7 and/or hexadecamethylcyclooctasiloxane D8 and its linear homologs with a weight fraction mD7+. The weight ratio mD3/mD6 is in a range between 0.

Abstract: The invention relates to a process for depositing an anti-fouling top coat onto the outermost coating layer of a coated optical article, comprising the following steps: a) providing an optical article having two main faces, at least one of which being coated with an outermost layer; b) treating said outermost layer with energetic species resulting in surface physical attack and/or chemical modification; and c) vacuum evaporating a liquid coating material for an anti-fouling top coat by means of an evaporation device, resulting in the deposition of the evaporated coating material onto the treated outermost layer of the optical article, wherein prior to the vacuum evaporation step of the liquid coating material, said liquid coating material has been treated with energetic species.

Abstract: A method for increasing the durability of glass by a coating, according to the present invention comprises the step of coating glass with a coating comprising at least one layer whose thickness is below 5 nanometers, wherein the coating comprises a compound of at least one element.

Abstract: An electromagnetic radiation shielding device includes a first ply having a No. 1 surface and a No. 2 surface and a second ply having a No. 3 surface and a No. 4 surface. The No. 2 surface of the first ply faces the No. 3 surface of the second ply. A first coating having three or more metallic layers is provided over at least a portion of one of the surfaces, such as over at least a portion of the No. 2 surface. A second coating having three or more metallic layers is provided over at least a portion of one or more of the other surfaces, such as over at least a portion of the No. 3 surface.

Abstract: A method for forming an optical coating comprising the steps of forming a fine-structure layer mainly composed of an inorganic metal oxide on the surface of an optical member, and then forming an inorganic, hard layer by a liquid-phase deposition method.

Abstract: Certain example embodiments relate to a burner for use in combustion deposition depositing a coating on a substrate. An infrared (IR) burner generates radiant energy in an area between the burner and the substrate. A delivery device (1) provides a stream comprising a substantially vaporized precursor and a carrier gas from a location remote from the radiant energy generated by the IR burner, and (2) causes the stream to flow between the substrate and the IR burner. The stream is substantially laminar when exiting the delivery device. The radiant energy is sufficient to cause the precursor in the stream to be combusted and to heat the substrate to allow at least a portion of the combusted precursor to form the coating, directly or indirectly, on the substrate. The burners of certain example embodiments may be used, for example, to combustion deposition deposit metal oxide coatings onto glass substrates.

Abstract: Certain example embodiments of this invention relate to a method of forming a coating on a glass substrate using combustion deposition. A glass substrate having at least one surface to be coated is provided. A reagent is selected. A precursor to be combusted with the reagent is introduced. Using at least one infrared burner, at least a portion of the reagent and the precursor are combusted to form a combusted material, with the combusted material including non-vaporized material. The glass substrate is provided in an area so that the glass substrate is heated sufficiently to allow the combusted material to form the coating, directly or indirectly, on the glass substrate. The coating may be substantially uniform. In certain example embodiments, a silicon oxide coating may be deposited, which increases visible transmission of the glass substrate by at least about 1.7%.

Abstract: Certain example embodiments relate to a method of forming a coating on a glass substrate using combustion deposition. A glass substrate having at least one surface to be coated is provided. An organosiloxane inclusive precursor having a ring- or cage-like structure to be combusted is introduced. Using at least one flame, at least a portion of the precursor is combusted to form a combusted material, the combusted material including non-vaporized material. The glass substrate is provided in an area so that the glass substrate is heated sufficiently to allow the combusted material to form the coating, directly or indirectly, on the glass substrate. In certain example embodiments, the precursor is a cyclic siloxane based and/or polyhedral silsesquioxane (POSS) based precursor, which advantageously may affect the coating's transmission and/or reflection properties compared to conventionally used silicon precursors.

Abstract: An image sensor includes a color filter, an over-coating layer formed on the color filter, and a medium layer formed on the over-coating layer, wherein the medium layer is configured with at least two medium layers of which refractive indices are different from each other.

Abstract: An antireflective transparent zeolite hardcoat and fabrication method thereof. The transparent zeolite hardcoat comprises a zeolite nanostructure made of zeolite nanocrystals vertically stacked into a porous structure on a substrate, wherein the porosity increases with structure height, thereby providing a smooth refractive index transition.

Abstract: A Method to Incorporate a Fluorescent Internal Standard on Substrates (NC#098329). The method includes providing a substrate, operatively coupling internal standard particles to the substrate, forming an insulating buffer layer over the internal standard particles and the substrate, and forming a sensing polymer layer over the insulating buffer layer.

Abstract: A method of manufacturing an inorganic substrate coated with a thin silica type glass layer of 2H to 9H pencil hardness, said method comprising the steps of: coating an inorganic substrate with a cyclic dihydrogenpolysiloxane and/or a hydrogenpolysiloxane represented by a specific unit formula, and curing it; an inorganic substrate coated with a thin silica type glass layer; a coating agent for an inorganic substrate that is composed of a cyclic dihydrogenpolysiloxane and/or a hydrogenpolysiloxane represented by a specific unit formula; and a semiconductor device having an inorganic substrate coated with a thin silica type glass layer.

Abstract: A method and apparatus for making an optical fiber preform, including injecting a plasma gas source into the first end of a tubular member; generating a ring plasma flame with the plasma gas source flowing through a plasma gas feeder nozzle, the plasma gas feeder nozzle including: an inner tube, an outer tube, wherein the plasma gas source is injected between the inner tube and the outer tube to produce the ring plasma flame, such that at least a portion of the ring plasma flame is directed radially toward the inner surface of the tubular member; traversing the tubular member along the longitudinal axis relative to the plasma flame; depositing at least one soot layer on the interior surface of the tubular member by introducing reagent chemicals into the plasma flame; and fusing all of the soot layers into a glass material on the interior surface of the tubular member.

Abstract: A multi-layer coating structure with anti-reflection, anti-static and anti-smudge functions includes a substrate and a coating module. The coating module is formed on a front surface of the substrate and composed of a plurality of indium tin oxide compound coating layers and a plurality of silicon dioxide compound coating layers that are alternately stacked upon each other. The coating module further includes a fluorocarbon compound coating layer that is the uppermost layer of the coating module. Because the surface layer has good electrical conductive properties, the surface layer reduces much of the work in the grounding process and also increases the total yield and reliability in high volume production. The present invention provides a surface conductive layer structure with an anti-reflection coating that can be applied to the LCD and PDP display industries for glass and plastic film substrates.

Abstract: Cyclic dihydrogenpolysiloxanes, hydrogenpolysiloxanes of specific siloxane unit formulas etc., a process for their production using hydrolysis/condensation, a process for the production of silica type glass moldings with an optical transmittance of 90% to 100% in the vacuum-UV region to UV region and an optical transmittance of 98% to 100% in the visible region to near infrared region by curing said cyclic dihydrogensiloxanes or said hydrogenpolysiloxanes in a mold, said silica type glass moldings, optical elements made up of the silica type glass, a process for the production of optical elements having such a silica type glass film layer by coating an optical element with the hydrogenpolysiloxanes and curing them, and optical elements having such a silica type glass film layer.

Abstract: The present invention provides a transparent conductive film having: a transparent base film; a transparent SiOx thin film having a thickness of from 10 to 100 nm, a refractive index of from 1.40 to 1.80 and an average surface roughness Ra of from 0.8 to 3.0 nm, wherein x is from 1.0 to 2.0; and a transparent conductive thin film including an indium-tin complex oxide, which has a thickness of from 20 to 35 nm and a ratio of SnO2/(In2O3+SnO2) of from 3 to 15 wt %, wherein the transparent conductive thin film is disposed on one side of the transparent base film through the transparent SiOx thin film.

Abstract: The invention relates to a self-cleaning lighting device comprising a light source and a wall, which permits a portion of at least the radiation emitted by said source to pass therethrough and which is covered, over a portion of at least one of its two faces, by a photocatalytically active layer. The invention is characterized in that under the weakest illumination conditions, the photocatalytic activity of said layer is high enough for degrading and reducing organic soilings into easily eliminable particles that do not adhere to said layer, and/or for conferring a hydrophilic character to this layer. The invention also relates to a method for producing the aforementioned device, a translucent wall provided for this device, and to the use of the device for lighting tunnels, public lighting, airport runway lighting, indoor lighting or for headlamps or indicator lights of transportation vehicles.

Abstract: To provide an antireflection coating composition having a low surface tension and excellent coating properties and capable of forming an antireflection film with a low refractive index, without use of PFOS nor PFOA having 7 or more carbon atoms. An antireflection coating composition which contains a fluorinated surfactant (A) containing a compound (A1) represented by the following formula (I), a water-soluble polymer (B) and an aqueous medium (C): R1—O—(R2—O)n—R3—X1??(I) wherein R1 is a linear or branched perfluoroalkyl group of which the terminal fluorine atom may be substituted by a hydrogen atom or a chlorine atom, each of R2 and R3 which are independent of each other, is a linear or branched perfluoroalkylene group, provided that the total number of carbon atoms in R1, R2 and R3 is at most 5, n is 0 or an integer of at least 1, X1 is —COOH or —C(CF2Z1)(CF2Z2)OH, which may form a salt, and each of Z1 and Z2 is a hydrogen atom, a fluorine atom, a chlorine atom or a trifluoromethyl group.

Abstract: A production method of an optical element, which is utilized in a pickup apparatus using a light source emitting light having wavelength of 380 nm to 420 nm and has a functional layer such as an anti-reflection film 60 formed on a molded portion 50 comprising a resin having an alicyclic structure, comprising steps of forming a first SiO layer 62 in the molded portion 50 by a vapor deposition process using SiO as an evaporation source and introducing O2 gas under a predetermined pressure, forming a second SiO layer 64 on the first SiO layer by a vapor deposition process using SiO as an evaporation source and introducing O2 gas under a pressure lower than the pressure used in forming the first SiO layer 62, and oxidizing the first SiO layer 62 and the second SiO layer 64.

Abstract: An optical film comprising a substrate and a layer, the layer comprising a cured object of a composition which contains at least one of: a hydrolyzate of at least one organosilane compound having a directly silicon-bonded hydroxyl or hydrolyzable group; and a partial condensate of the hydrolyzate, and further contains a compound having a polymerization initiation site, and an antireflection film comprising a substrate and at least one layer including an antireflection layer, wherein at least one of the at least one layer is a layer formed by curing, with at least one of a light and a heat energy, a composition which contains at least one of: a hydrolyzate of at least one organosilane compound having a directly silicon-bonded hydroxyl or hydrolyzable group; and a partial condensate of the hydrolyzate, and further contains a compound having a polymerization initiation site.

Abstract: A light-emitting element includes a protective layer in contact with an upper electrode and a circular polarizer in contact with the protective layer.

Abstract: A method for fabricating a distributed Bragg reflector waveguide is disclosed, which includes forming a first distributed Bragg reflector on a substrate; forming a sacrificial pattern on the first distributed Bragg reflector; forming a second distributed Bragg reflector on the sacrificial pattern and the first distributed Bragg reflector; and removing the sacrificial pattern. A distributed Bragg reflector waveguide is also disclosed.

Abstract: An apparatus for casting a patterned surface on both sides of an opaque web. The apparatus includes a first patterned roll, a second pattered roll, and a means for rotating the first and second patterned rolls such that their patterns are transferred to opposite sides of the opaque web while it is in continuous motion. During this process, their patterns are maintained in continuous registration to within at least 100 micrometers.

Abstract: An optical coating is applied to an article surface of an article by providing a deposition substrate other than the article surface, wherein the deposition substrate is made of a removable material. The optical coating is thereafter deposited onto the deposition substrate. The optical coating is thereafter transferred to the article surface using a transfer support, which may be the deposition substrate or may be a different piece. The method includes thereafter affixing the optical coating to the article surface, and thereafter removing the transfer support.

Abstract: A plasma buildup method for building up an optical fiber perform. The method includes the steps of: providing a plasma torch having an outlet nozzle adjacent to a primary perform, wherein an interaction zone is defined between the outlet nozzle and the primary preform; feeding the plasma torch with a plasma-generating gas in the presence of a silica-based material so as to deposit a buildup material on the primary preform; and introducing a reducing element into the interaction zone, the reducing element reacting to induce reduction of the nitrogen oxides produced by interaction between nitrogen and oxygen in the presence of the plasma generated by the torch.

Abstract: A method of making an oven door, or other coated article, is provided so as to have a color suppression coating on a substrate such as a glass substrate. Flame pyrolysis (or combustion CVD) is used in depositing at least part of a color suppression coating. For example, in an example embodiment of this invention, flame pyrolysis can be used to deposit a single SnO2 layer from suitable Sn inclusive precursor(s), or alternatively a multi-layer coating may be formed at least partially using flame pyrolysis. In another example embodiment, the coating may include a base layer of silicon oxide formed using flame pyrolysis, and another layer of tin oxide formed in any suitable manner over the base layer of silicon oxide.

Abstract: The invention relates to a method and compositions for producing a hydrophilic coating on a surface of a solid material. The method comprises a cleaning step and a coating step. The cleaning step may be preceded by an initial cleaning step and it may optionally be succeeded by a preconditioning step prior to the coating step. The cleaning step comprises cleaning and preconditioning a surface of a material by use of a first cleaning fluid composition comprising ceria (CeO2) particles. The coating step comprises treatment by use of a coating fluid composition comprising photocatalytically active nanoparticles of titania (TiO2). An advantage of the method of the invention is that the method may be carried out at temperatures in the range 5 to 50° C. No further heating is required. Thereby, the method may easily be used for treating materials such as windows, furniture, tiles, walls, etc.

Abstract: A method that includes providing a lens having a first side, a second side, and an anti-reflective or mirror coating on the first side; depositing a heat-curable coating on the second side of the lens; and heating the heat-curable coating without damaging the anti-reflective or mirror coating. Another method that includes providing a non-pure polycarbonate lens having a first side, a second side, and a first coating on the first side; depositing a heat-curable coating on the second side of the lens; and heating the heat-curable coating without damaging the first coating. Other methods are also disclosed.

Abstract: The invention is a method for producing a tool which can be used to create optically active surface structures in the sub-?m range, having a support surface onto which relief surface structures are applied over the support surface by means of material deposition. The invention is distinguished by the support surface being directly contacted with a mask in which openings with diameters in the sub-?m range are provided or can be provided, by the support surface including the mask being subjected to a coating process in which the coating material deposits through the openings of the mask onto the support surface, and the mask is removed from the support surface when a partial amount of an average end structure height of the surface structures is reached and the coating procedure is then continued without the mask using the same coating material or different coating materials.

Abstract: Devices, systems and methods of using same where hybrid substrate materials are provided with a substantially uniform surface to provide uniformity of properties, including interaction with their environments. Uniform surfaces are applied as coatings over, e.g., hybrid metal/silica, metal/polymer, metal/metal surfaces to mask different chemical properties of differing regions of the surface and to afford a protective surface for the hybrid structure.

Abstract: A papermaking belt, used for a shoe pressing belt, a calender belt and a sheet transfer belt, is prevented from cracking and inhibited from growth of a crack, and comprises a reinforcing substrate (6) embedded in a thermosetting polyurethane layer (7) so that the said reinforcing substrate (6) and the said thermosetting polyurethane layer (7) are integrated with each other and the outer peripheral surface and the inner peripheral surface of the belt are formed by polyurethane layers, the polyurethane layer forming the outer peripheral surface is made of a composition containing a urethane prepolymer having isocyanate groups on ends and a hardener containing dimethylthiotoluenediamine.

Abstract: A method for manufacturing a coated sheet that forms a coated layer having a uniform film thickness by a coating liquid even when a substrate has a large area. A method for manufacturing a coated sheet to form a coated layer by a process including a process (1) for coating a coating liquid including a resin material and a solvent on a substrate, and a drying process (2) for drying a coated liquid, wherein a drying speed of a coated liquid in the drying process (2) is set 0.3 [g/m2·s] or less.

Abstract: Provided is a method for manufacturing color filters in an image sensor device. In the method, an insulating film may first be formed on a substrate. HexaMethylDiSilazine (HMDS) gas may then be provided in a vapor state on the insulating film formed on the substrate. A surface of the insulating film may be modified to have hydrophobicity and to form silane ions thereon. The insulating film may be annealed at a second temperature greater than the first temperature. A color filter film may then be formed on the annealed insulating film with improved adherence.

Abstract: A thin film of zinc oxide is deposited by sputter deposition in a partial pressure of oxygen on a suitable at a low temperature, such as less than 300 degrees Centigrade, to provide an amorphous film. This should take place in a sputtering environment which will produce an oxygen deficient film layer. After this, the film is crystallized by heat treatment in an oxygen free environment in a given temperature range. The thin film produced by this process will have very low electrical resistance, is transparent from about the visible to beyond 10 microns in wavelength, is highly resistant to laser energy and is highly conductive.

Abstract: A liquid crystal display device includes an alignment layer with constituent materials. The constituent materials have a stoichiometric relationship configured to provide a given pretilt angle. Liquid crystal material is provided in contact with the alignment layer. A method for forming an alignment layer for liquid crystal displays includes forming the alignment layer on a substrate by introducing an amount of material to adjust a stoichiometric ratio of constituent materials wherein the amount is determined to provide a given pretilt angle to the alignment layer. Ions are directed at the alignment layer to provide uniformity of the pretilt angle.

Abstract: A micro-optical element is produced through vapor deposition techniques, such as atomic layer deposition. An optical structure having a surface with uneven structures is exposed to one or more precursor vapors to create a self-limiting film growth on the surface of the optical structure. The film thickness may be increased and controlled by subsequent exposures. The resulting film conforms to surface structures having varying complex dimensions.

Abstract: A thin film deposition method for producing an optical film with an optical characteristic on a deposition substrate in a vacuum chamber is provided. The method may include preparing in the vacuum chamber a deposition source which is a source of the film producing material; holding the deposition substrate with a substrate holding member; arranging the deposition substrate and the deposition source such that, given that a vertical distance from the center of the deposition substrate to the deposition source is defined as ZK and a horizontal distance between the deposition substrate and the deposition source as Xk, Xk/Zk is set to satisfy a following equation 0.48?Xk/Zk?0.78; rotating the deposition substrate on a rotational axis which is orthogonal to the deposition substrate; and evaporating the film producing material of the deposition source to perform deposition on the deposition substrate.

Abstract: A method for manufacturing a coated sheet that may form a coated layer having a uniform film thickness by a coating liquid even when a substrate has a large area. A method for manufacturing a coated sheet to form a coated layer by a process including a process (1) for coating a coating liquid including a resin material and a solvent on a substrate, and a drying process (2) for drying a coated liquid, wherein a value L obtained in drying process (2) satisfies a following relationship; L = ? 0 T ? ? ? [ mN / m ] × ( h ? [ m ] ) 3 ? ? [ mPa · sec ] ? ? ? t > 1.9 × 10 - 13 ? [ m 4 / sec ] (where: T: total period of drying process [sec]; ?: surface tension of coated liquid [mN/m]; h: thickness of coated liquid [m]; and ?: viscosity of coated liquid [mPa·sec]).

Abstract: The invention concerns a process for replacing an initial outermost coating layer of a coated optical lens with a layer of a new final coating having surface properties different from those of said initial outermost coating which comprises: (a) providing a coated optical lens having an initial outermost coating layer having a surface contact angle with water of at least 65°; (b) subjecting the initial outermost coating layer to a treatment with activated chemical species at about atmospheric pressure, and for less than one minute, in order there is obtained a treated surface having a contact angle with water of 10° or less; and (c) depositing on said treated surface a layer of a final coating having surface properties different from those of said initial outermost coating.

Abstract: There is provided a UV-reflective interference layer system for transparent substrates with broadband anti-reflection properties in the visible wavelength range. The interference layer system includes at least four individual layers. Successive layers have different refractive indices and the individual layers contain UV and temperature-stable inorganic materials.

Abstract: Hybrid films, such as those having good abrasion-resistance and defogging properties, antireflection films including it, optical products, and methods for restoring the defogging property of the hybrid films are disclosed. The hybrid films having a defogging property may be obtained through vapor deposition of an organic compound having a hydrophilic group and a reactive group along with silicon dioxide or with silicon dioxide and aluminum oxide. The antireflection film may be formed on a substrate having the hybrid film as the outermost layer opposite to the substrate. The optical product may comprise a plastic substrate and the antireflection film having the hybrid film. A method for restoring the defogging property of the hybrid film of the optical product may include washing the hybrid film.