Fabricating diffractive structures on gemstones for high optical performance
US11294110B2 · kind B2 · utility
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4References
19Claims
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Key dates
| Filing date | Jul 3, 2019 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Jan 11, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J37/31
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods, apparatus, and systems for fabricating diffractive structures on gemstones for high optical performance are provided. In one aspect, a method includes obtaining a plurality of gemstone characteristics of a gemstone, determining that the gemstone exhibits each of the plurality of gemstone characteristics within a respective predetermined range, identifying a diffractive structure setting associated with a combination of the respective predetermined ranges for the plurality of gemstone characteristics, and fabricating diffractive structures on the gemstone according to the diffractive structure setting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.