Crystal volume having a decorative dichroic visual effect
First Claim
1. A jewel comprising a volume of transparent amorphous vitreous material of the crystal type, whereof a portion of the external surface is coated with successive layers of metal or ceramic particles designed to provide it with a decorative dichroic visual effect when said portion is observed through the volume of the transparent material,wherein the succession of the layers observes the following scheme:
- at least one alternation of two transparent layers of metal and/or ceramic particles in contact with the crystal;
thena final reflecting opaque layer consisting of metal;
said final reflecting opaque layer allowing reflectance and preventing transmittance of light.
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Accused Products
Abstract
The invention concerns a volume of transparent amorphous vitreous material such as crystal or glass whereof one part of the outer surface is coated with successive layers of metal or ceramic particles designed to provide it with a decorative dichroic visual effect when said part is observed through a volume of the transparent material. The succession of layers observes the following scheme: at least one alternation of two transparent layers of metal and/or ceramic particles in contact with the crystal; then a final reflecting opaque layer consisting of metal.
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Citations
12 Claims
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1. A jewel comprising a volume of transparent amorphous vitreous material of the crystal type, whereof a portion of the external surface is coated with successive layers of metal or ceramic particles designed to provide it with a decorative dichroic visual effect when said portion is observed through the volume of the transparent material,
wherein the succession of the layers observes the following scheme: -
at least one alternation of two transparent layers of metal and/or ceramic particles in contact with the crystal;
thena final reflecting opaque layer consisting of metal; said final reflecting opaque layer allowing reflectance and preventing transmittance of light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification