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US 8,553,208 B2Granted
Retail compatible detection of CVD grown diamond
AssigneeSCIO Diamond Technology Corporation
InventorsRobert C. Linares, Patrick J. Doering
Life of this patent
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Abstract
A system includes a radiation source to provide short wavelength light. A holder positions a table of a gemstone to receive the light. A detector is positioned to receive fluorescent light from the gemstone when the gemstone is a CVD grown gemstone.
Claims20
A method comprising:
- placing a diamond on a top surface of a holder;
- cooling the top surface of the holder to cool the diamond below room temperature;
- exposing the cooled diamond to short wavelength light to cause a chemical vapor deposition formed diamond to fluoresce;
- and
- identifying the diamond as a chemical vapor deposition formed diamond as a function of the fluorescence.
2 more elements
A system comprising:
- a radiation source to provide short wavelength light;
- a holder having a top surface on which to position a table of a gemstone to receive the light;
- detector positioned to receive fluorescent light from the gemstone when the gemstone is a CVD grown gemstone;
- and
- a cooling device positioned to cool the top surface of the holder to cool a gemstone positioned on the top surface of the holder.
2 more elements
A system comprising:
- a radiation source to provide short wavelength light;
- a first optical fiber optically coupled to the radiation source;
- a holder having an integrated cooling device to position a table of a gemstone to receive the light from the first optical fiber;
- the cooling device coupled to cool a gemstone positioned in the holder;
- a second optical fiber optically coupled to receive fluorescent light from the gemstone when the gemstone is a CVD grown gemstone;
- and
- a detector positioned to receive the fluorescent light from the second optical fiber to detect the fluorescent light to identify a gemstone as a CVD grown gemstone.
4 more elements
Dependencies are inferred from the claim text.