Reflecting mirror
First Claim
1. A reflecting mirror comprising:
- a substrate which is substantially transparent or transmits light having a predetermined wavelength;
a reflecting film which is formed on one surface of the substrate in a thickness direction thereof and reflects light entering from the other thickness direction surface side; and
a photocatalytic hydrophilic film which is formed on the other thickness direction surface of the substrate, and has hydrophilicity and photocatalytic properties, wherein the photocatalytic hydrophilic film is formed by mixing silicon dioxide and titanium dioxide together, a mass ratio of the titanium dioxide in the photocatalytic hydrophilic film is in a range of 30% to 70%, and the photocatalytic hydrophilic film has a film thickness in a range of 120 nm to 180 nm.
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Accused Products
Abstract
In the reflecting mirror of the present invention, the film thickness of a photocatalytic hydrophilic film mainly made of silicon dioxide is set to about 90 nm, and the mass ratio of photocatalyst particles made of titanium dioxide contained in the photocatalytic hydrophilic film is set to about 60%. As a result, the hydrophilicity and the photocatalytic property can be sufficiently assured, and the surface reflectivity of the photocatalytic hydrophilic film can be effectively restrained. Therefore, the occurrence of a double image caused by the surface reflection of the photocatalytic hydrophilic film can be effectively restrained or be prevented.
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Citations
20 Claims
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1. A reflecting mirror comprising:
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a substrate which is substantially transparent or transmits light having a predetermined wavelength;
a reflecting film which is formed on one surface of the substrate in a thickness direction thereof and reflects light entering from the other thickness direction surface side; and
a photocatalytic hydrophilic film which is formed on the other thickness direction surface of the substrate, and has hydrophilicity and photocatalytic properties, wherein the photocatalytic hydrophilic film is formed by mixing silicon dioxide and titanium dioxide together, a mass ratio of the titanium dioxide in the photocatalytic hydrophilic film is in a range of 30% to 70%, and the photocatalytic hydrophilic film has a film thickness in a range of 120 nm to 180 nm. - View Dependent Claims (4, 7, 9, 11, 13, 15, 17, 19)
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2. A reflecting mirror comprising:
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a substrate which is substantially transparent or transmits light having a predetermined wavelength;
a reflecting film which is formed on one surface of the substrate in a thickness direction thereof and reflects light entering from the other thickness direction surface side;
a photocatalytic hydrophilic film which is formed on the other thickness direction surface of the substrate, and has hydrophilicity and photocatalytic properties, a substantially transparent film which is formed between the photocatalytic hydrophilic film and the substrate, and has higher refractive index than that of the photocatalytic hydrophilic film, wherein the photocatalytic hydrophilic film is formed by mixing silicon dioxide and titanium dioxide together, a the mass ratio of the titanium dioxide in the photocatalytic hydrophilic film is in a range of 30% to 70%, and the photocatalytic hydrophilic film has a film thickness in a range of 50 nm to 120 nm. - View Dependent Claims (3, 5, 6, 8, 10, 12, 14, 16, 18, 20)
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Specification