Examining a diamond
US6331708A · kind A · utility
7Cited by
6References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 19, 2001 |
| Grant date | Dec 18, 2001 |
| Priority date | — |
| Expiry date | Jan 19, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/87
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to test whether a diamond has had a layer a synthetic diamond deposited thereon, the diamond is radiated with ultraviolet radiation so as to form a pattern of beams of refracted and reflected radiation, the pattern of refracted and reflected radiation being observed on a screen behind the diamond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.