Patent · US Active

Method and system for detecting a diamond signature

US10598602B2 · kind B2 · utility

0Cited by

2References

14Claims

0Family size

Assignee

Tomra Sorting GmbH · DE

Inventors

Geoffrey Harold Madderson · Johannesburg, ZA
Markus Dehler · Wedel, DE

Key dates

Filing date	Oct 24, 2017
Grant date	Mar 24, 2020
Priority date	—
Expiry date	Oct 24, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB07C2501/0018
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for identifying the presence of partly liberated diamonds in a material stream. The method can include illuminating a material with a multi-wavelength beam including at least one monochromatic SWIR laser beam, and at least one IR scatter-/anti-scatter laser beam, capturing a portion of the at least one monochromatic SWIR laser beam after the monochromatic SWIR laser beam has been reflected and/or scattered by the material, producing a SWIR signal based on the captured portion of the at least one monochromatic SWIR laser beam, and capturing a first portion of the at least one IR scatter-/anti-scatter laser beam after the at least one IR scatter-/anti-scatter laser beam has been scattered and optionally reflected by the material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.