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US 5,047,447 AGranted
Medium incorporating melanin as an absorbing pigment for protection against electromagnetic radiation
AssigneePhotoprotecive Technologies Incorporated
InventorJames M. Gallas
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a medium incorporating melanin for radiation protection.
Claims25
An apparatus for absorbing radiation emitted from natural or artificial sources, comprising:
- a solid material or a material being in its solid state;
- and
- melanin being connected with the material, the material and the melanin being transparent.
An apparatus for absorbing ultra-violet, visible and infrared radiation, comprising:
- a solid glass or plastic substrate;
- and
- melanin being adhered to the glass or plastic substrate.
An article of manufacture prepared by a process comprising the steps of:
- applying a non-aggregated melanin to the surface of a transparent solid glass substrate or a transparent solid plastic substrate.
An apparatus prepared by a process comprising the steps of:
- mixing a non-aggregated melanin with an adhesive to form a mixture;
- and
- applying the mixture on the surface of a first solid substrate.
An apparatus prepared by a process comprising the steps of:
- mixing non-aggregated melanin with a melted polycarbonate to form a mixture;
- and
- heating the mixture.
An apparatus prepared by a process comprising the steps of:
- mixing melanin with a monomer suitable for the formation of a polymer;
- and
- polymerizing the monomer in the presence of the melanin to form a melanin-containing polymer.
A hydrophobic contact lens for placing on an eye comprising:
- a polymeric material;
- and
- melanin being attached to the polymeric material for scavenging a superoxide when the lens is placed on the eye.
Dependencies are inferred from the claim text.