Anti-reflection spectacle lens and its production method
First Claim
1. An anti-reflection spectacle lens comprising an anti-reflection film composed of a plurality of layers formed on at least one surface of a lens substrate or other one or more layers formed on said lens substrate, wherein said anti-reflection film comprises an outermost layer made of silicon oxide, and a water- and oil-repellent layer is formed on said silicon oxide layer by vacuum deposition.
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Accused Products
Abstract
An anti-reflection spectacle lens has an anti-reflection film composed of a plurality of layers formed on at least one surface of a lens substrate or other one or more layers formed on said lens substrate, the anti-reflection film comprising an outermost layer made of silicon oxide, on which a water- and oil-repellent layer is formed by vacuum deposition. The spectacle lens is excellent in water and oil repellency, and aqueous stains and oily stains attached to the spectacle lens can easily be wiped off. The use of a pellet impregnated with a hydrophobic, reactive organic compound in a vacuum deposition chamber contributes to the reduction of a production cost.
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Citations
16 Claims
- 1. An anti-reflection spectacle lens comprising an anti-reflection film composed of a plurality of layers formed on at least one surface of a lens substrate or other one or more layers formed on said lens substrate, wherein said anti-reflection film comprises an outermost layer made of silicon oxide, and a water- and oil-repellent layer is formed on said silicon oxide layer by vacuum deposition.
- 11. A method for producing an anti-reflection spectacle lens comprising forming an anti-reflection film composed of a plurality of layers on at least one surface of a lens substrate or other one or more layers formed on said lens substrate by vacuum deposition, said anti-reflection film comprising an outermost layer made of silicon oxide, and then vacuum-depositing an organic compound having in a molecule at least one hydrophobic group and at least one reactive group that can be bonded to a hydroxyl group on said silicon oxide layer continuously in the same vacuum deposition chamber as for said anti-reflection film to form a water- and oil-repellent layer.
Specification