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:
Apr. 14, 2026
Filed:
May. 16, 2022
Sarine Technologies Ltd., Hod HaSharon, IL;
SARINE TECHNOLOGIES LTD., , IL;
Abstract
Systems and methods for grading a gemstone including its clarity are presented. An image capturing device disposed to capture images along a line of sight: a holder to support the gemstone thereon; a manipulator arm, carrying the holder, configured to rotate along a roll axis, and allow for rotation of the holder along a pitch axis: an illumination sub-system comprising a direct illumination arrangement, a dark-field illumination arrangement, and a facet illumination arrangement; and a controller arrangement configured to control the illumination arrangements to generate a plurality of illumination patterns for the gemstone, control the manipulator arm to position the holder for a plurality of orientations of the gemstone, control the image capturing device to capture an image of each of the generated illumination patterns, each of the orientations and each of one or more depths of focus, and process the captured images to grade the gemstone.