System and method for characterizing gemstones using fluorescence
US11892413B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2022 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Apr 25, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/6423
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for determining properties of gemstones based, inter alia, on fluorescence properties of the gemstones, are presented. In one aspect, properties of at least one gemstone can be determined. In another aspect, a relationship between at least two gemstones can be determined. In one example, a first and a second gemstones are illuminated with illuminating light of at least one fluorescence-exciting wavelength range; corresponding at least one first fluorescence-emission light and at least one second fluorescence-emission light spectrum, emitted from the first and second gemstones respectively are detected and analyzed, either independently or by comparison, to determine the relationship between the first and second gemstones. In some examples, data indicative of visible light absorbance or three-dimensional models of the gemstones is combined with the fluorescence data to determine the properties or the relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.