US 12,072,295 B1
Gemstone inscription viewing system and applications thereof
Simon Henley, London (GB); Lewis Fish, Oxford (GB); Ajay Varghese, Oxford (GB); Joseph Dixon, Oxford (GB); Matthew Ashdale, London (GB); Patrick Salter, Twyford (GB); and Martin Booth, Oxford (GB)
Assigned to OPSYDIA LIMITED, Begbroke (GB)
Filed by OPSYDIA LIMITED, Begbroke (GB)
Filed on Nov. 17, 2023, as Appl. No. 18/513,086.
Claims priority of provisional application 63/587,604, filed on Oct. 3, 2023.
Int. Cl. G01N 21/87 (2006.01); G02B 25/00 (2006.01); G02B 25/02 (2006.01)
CPC G01N 21/87 (2013.01) [G02B 25/002 (2013.01); G02B 25/02 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A viewing device configured to magnify and view a marking on a gemstone, the viewing device comprising:
a first light source configured to generate light directed along a first path toward the gemstone;
a mask configured to partially obscure the light from the first light source to generate a pattern, wherein the partially obscured light is reflected off the gemstone;
a magnifying optical device configured to magnify light reflected off the gemstone along a second path;
a camera positioned to capture the magnified light such that the pattern is captured by the camera when a table of the gemstone is oriented such that the marking is orientated to be captured by the camera;
a second light source configured to transmit light along a third path that extends through a facet of the gemstone and wherein the second path extends out of the table, the facet different from the table;
at least one actuator configured to control a direction of the third path; and
a processor coupled to the at least one actuator and at least one camera, the processor configured to analyze an image of the gemstone and, based on the analysis, send signals to the at least one actuator to adjust the direction of the third path.