Reflection preventing glass plate and production method thereof and coating composition for reflection preventing
AssigneeNippon Sheet Glass Co., Ltd.
InventorsKouji Takahashi, Hideki Okamoto
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Abstract
There is provided a glass plate suitable for windows of automobile which shows small reflectivity at high incident angle and gives improved visibility. A film comprising the chain silica fine particles and silica of 5 to 30% by weight based on the weight of said chain silica fine particles and having a thickness of 110 to 250 nm is coated on at least one of the glass substrate surfaces, and dents and projections are formed on the surface of said film, by which a glass plate for an automobile which shows small reflectivity at high incident angle is provided.
Claims8
A visible light reflection preventing glass plate, said glass plate comprising a glass substrate and a film having an outer surface, said film (i) being coated on at least one side of said glass substrate, (ii) including chain silica particles having an average diameter of 10 to 20 nm and an average length of 60 to 200 nm and silica of 5 to 30% by weight based on the weight of the chain silica particles, (iii) having a thickness of 110 to 250 nm, and (iv) defining dents and projections on said outer surface.
A visible light reflection preventing glass plate comprising a film having an outwardly facing surface coated on at least one side of a glass substrate, said film including chain silica fine particles having an average diameter of 10 to 20 nm and an average length of 60 to 200 nm and silica, having a thickness of 110 to 250 nm and defining empty space between mutually adjacent chain silica fine particles whereby said film has a refractive index of 1.25 to 1.40, and wherein dents and projections are formed on said outer surface of said film.
Dependencies are inferred from the claim text.