Half mirror
First Claim
1. A half mirror comprising:
- a substrate that at least transmits light having predetermined wavelengths;
a reflecting film, comprising substantially silicon of a thickness of 20 to 45 nm and being integrally formed on a surface of said substrate, for reflecting light that is made incident upon the reflecting film from the substrate side thereof and transmitting, toward said substrate side of the reflecting film at a fixed ratio, light made incident upon the reflecting film from the side opposite to the substrate side; and
a protective film, which is made of a translucent material that at least transmits light having particular wavelengths, formed on the surface of said reflecting film opposite to the surface on which said substrate is formed.
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Accused Products
Abstract
The present invention relates to a half mirror which transmits light from the back of a mirror body. The half mirror comprises a substrate that at least transmits light having predetermined wavelengths; a reflecting film, comprising substantially silicon of a thickness of 20 to 45 nm and being integrally formed on a surface of the substrate, for reflecting light that is made incident upon the reflecting film from the substrate side thereof and transmitting, toward the substrate side of the reflecting film at a fixed ratio, light made incident upon the reflecting film from the side opposite to the substrate side; and a protective film, which is made of a translucent material that at least transmits light having particular wavelengths, formed on the surface of the reflecting film opposite to the surface on which the substrate is formed.
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Citations
17 Claims
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1. A half mirror comprising:
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a substrate that at least transmits light having predetermined wavelengths;
a reflecting film, comprising substantially silicon of a thickness of 20 to 45 nm and being integrally formed on a surface of said substrate, for reflecting light that is made incident upon the reflecting film from the substrate side thereof and transmitting, toward said substrate side of the reflecting film at a fixed ratio, light made incident upon the reflecting film from the side opposite to the substrate side; and
a protective film, which is made of a translucent material that at least transmits light having particular wavelengths, formed on the surface of said reflecting film opposite to the surface on which said substrate is formed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of manufacturing a half mirror which includes a substrate that at least transmits light having predetermined wavelengths, comprising the steps of;
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a) forming a reflecting film comprising substantially silicon of a thickness of 20 to 45 nm and disposing said reflecting film integrally on a surface of said substrate, for reflecting light that is made incident upon the reflecting film from the substrate side thereof and transmitting, toward said substrate side of the reflecting film at a fixed ratio, light made incident upon the reflecting film from the side opposite to the substrate side; and
b) forming a protective film, which is made of a translucent material that at least transmit light having particular wavelengths and is formed on the surface of said reflecting film opposite to the surface on which said substrate is formed. - View Dependent Claims (14, 15, 16, 17)
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Specification