Anti-fog element
AssigneeMurakami Corporation
InventorsToru Komatsu, Masatoshi Nakamura
Life of this patent
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Abstract
An anti-fog element includes a transparent substrate such as a glass substrate, a transparent film of a photocatalyzer such as TiO.sub.2 catalyzing a photocatalytic reaction on the transparent substrate, and a film of a transparent porous inorganic oxide such as SiO.sub.2 formed on the film of the photocatalyzer and having a surface exhibiting a hydrophilic property. Organic matters etc. deposited in openings of the porous inorganic oxide film are dissolved and removed by a photocatalytic reaction caused by light excitation of the photocatalyzer film whereby the anti-fog property of the anti-fog element can be maintained over a long period of time.
Claims11
An anti-fog element comprising:
- a transparent substrate;
- a transparent film of a photocatalyzer catalyzing a photocatalytic reaction formed on the transparent substrate;
- and
- a transparent porous inorganic oxide film formed on the film of the photocatalyzer as the outer layer of said anti-fog mirror which is exposed to the air and having a surface exhibiting a hydrophilic property wherein said transparent film of photocatalyzer is made of TiO.sub.2 and said porous inorganic oxide film is made of SiO.sub.2.
An anti-fog mirror comprising:
- a substrate;
- a reflecting film formed on the front surface of said substrate;
- a transparent film of a photocatalyzer catalyzing a photocatalytic reaction formed on said reflecting film;
- and
- a transparent porous inorganic oxide film formed on the film of the photocatalyzer as the outer layer of said anti-fog mirror which is exposed to the air said photocatalyzer having a surface exhibiting a hydrophilic property wherein said transparent film of photocatalyzer is made of TiO.sub.2 and said porous inorganic oxide film is made of SiO.sub.2.
Dependencies are inferred from the claim text.