US 12,174,126 B2
Gemstone testing apparatus
Kui Lim Tam, Singapore (SG)
Assigned to JUBILEE DIAMOND INSTRUMENT (S) PTE. LTD., Singapore (SG)
Filed by Jubilee Diamond Instrument(s) Pte. LTd., Singapore (SG)
Filed on Apr. 25, 2023, as Appl. No. 18/306,892.
Application 18/306,892 is a continuation of application No. 17/302,980, filed on May 18, 2021, granted, now 11,668,654.
Application 17/302,980 is a continuation of application No. 16/479,823, abandoned, previously published as PCT/IB2017/058093, filed on Dec. 19, 2017.
Prior Publication US 2023/0341331 A1, Oct. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 21/87 (2006.01); G01N 21/33 (2006.01); G01N 33/00 (2006.01)
CPC G01N 21/87 (2013.01) [G01N 21/33 (2013.01); G01N 33/389 (2024.05); G01N 2201/0221 (2013.01)] 61 Claims
OG exemplary drawing
 
1. A hand-held gemstone testing apparatus comprising:
an elongated handheld body extending along a longitudinal axis from a body proximal end to a body distal end;
a test probe disposed at the body proximal end and comprising a tubular optical transmission channel extending along the longitudinal axis from a tubular channel proximal end to a tubular channel distal end, wherein the tubular channel proximal end is configured to engage with a gemstone test specimen for gemstone testing;
a light module comprising a UV light source at the body proximal end wherein the light module is configured to emit UV light in a proximal direction away from the elongated handheld body towards the gemstone test specimen when the gemstone test specimen is engaged with the tubular channel proximal end;
a photodetector in optical communication with the tubular optical transmission channel and configured to receive the UV light emitted from the UV light source after the UV light has reflected from the gemstone test specimen as the gemstone test specimen is engaged with the tubular channel proximal end;
an electronic testing system comprised in the elongated handheld body, operably coupled to the photodetector, and operably coupled to the light module to activate the UV light source; and,
a display interface disposed at an external surface of the elongated handheld body and configured to display a gemstone test result generated by the electronic testing system when in operation; and,
a cover to protect the test probe.