The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 2022
Filed:
Nov. 19, 2021
Ditech—diamond Inspection Technologies Ltd., Haifa, IL;
Ilya Leizerson, Haifa, IL;
DITECH—Diamond Inspection Technologies LTD., Haifa, IL;
Abstract
Gemstone grading method including illuminating the gemstone by light having a plurality of spectral components, each modulated according to a spectrally specific modulation (e.g., of intensity, frequency, phase), collecting the light following interaction with the gemstone, extracting from the collected light a set of intensity values for a respective set of modulation parameter values to provide a transmittance spectrum, and an output indicative of the transmittance spectrum (e.g., color, clarity, fluorescence grade). A complementary system includes a plurality of monochromatic light sources and respective modulators for simultaneously illuminating a gemstone with a modulation spectrally specific for each light source, a detection system for collecting the light following interaction whose signals are fed via a communication system to a data processor configured to extract a set of intensity values for a respective set of modulation parameter values to provide a transmittance spectrum and an output indicative thereof.