Optical device
First Claim
1. An optical device comprising:
- a transparent base plate;
a first layer formed of a substance having a refractive index of 1.58 or higher; and
a second layer which is farther from said transparent base plate than said first layer is from said transparent base plate and which is formed of an amorphous transparent fluorocarbon resin having a refractive index of 1.35 or lower, said first layer and said second layer constituting a film for preventing reflection.
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Accused Products
Abstract
An optical device is composed of: a transparent base plate formed of a glass or a macromolecular resin; a first layer formed of a substance having a refractive index of 1.58 or higher; and a second layer formed of an amorphous transparent fluorocarbon resin having a refractive index of 1.35 or lower. The second layer is farther from the transparent base plate than the first layer from the transparent base plate. The first and second layer constitute a film for preventing reflection. Optionally, adhesive layers are provided between the transparent base plate and the first layer and between the first layer and the second layer. Further optionally, the surfaces of the transparent base plate and the first layer are treated in order to enhance adhesion between the contact surfaces.
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Citations
20 Claims
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1. An optical device comprising:
- a transparent base plate;
a first layer formed of a substance having a refractive index of 1.58 or higher; and
a second layer which is farther from said transparent base plate than said first layer is from said transparent base plate and which is formed of an amorphous transparent fluorocarbon resin having a refractive index of 1.35 or lower, said first layer and said second layer constituting a film for preventing reflection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- a transparent base plate;
Specification