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US 6,183,843 B2Granted
Method for producing low reflectance diamond and products therefor
AssigneeRaytheon Company
InventorsTom Feng, Joel Askinazi
Life of this patent
Estimating the term…
Abstract
Method for producing novel diamond bodies having near-surface areas of reduced index of refraction which act as an anti-reflection layer. The method comprises displacing some of the ions present in the diamond lattice structure at said areas with preselected ions, such as of C, Si, Fe, Ni, Ti or Au, by ion implantation means to produce desired optical properties, such as for lens coatings. The ion-implanted diamond body preferably is subjected to high temperature post-annealing.
Claims10
A diamond body comprising:
- a radiation altered diamond lattice structure in surface and near-surface areas of the diamond body, wherein at least some of the ions normally present in the diamond lattice structure are displaced with preselected ions and wherein the said preselected ions are most concentrated at the surface areas and decrease inwardly in said near-surface areas to provide a graded radiation altered diamond lattice structure and thereby a reduced index of refraction for the diamond body.
Dependencies are inferred from the claim text.