Luminescence measurements in diamond
US10082469B2 · kind B2 · utility
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3References
40Claims
0Family size
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Key dates
| Filing date | Jun 28, 2016 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | Jun 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/64
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of and an apparatus for providing an indicator for a diamond as to whether it is natural by testing for the presence or absence of one or more specific markers in the luminescence properties of the diamond. These markers are characterized by luminescence decay time and luminescence wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.