Patent ID: 11879842
Assignee: GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The method of claim 1 further comprising, generating a second set of luminescence exciting beam pulses at a second light source;
directing the second luminescence exciting beam pulses to the second dichroic beam splitter,
receiving, at the camera, a third excited luminescence image from the sample gemstone on a stage, wherein the excited third luminescence image having passed through the first dichroic beam splitter and the second dichroic beam splitter;
receiving, at the camera with a computer processor and a memory, a fourth excited luminescence image from the sample gemstone on a stage, wherein the excited fourth luminescence image having passed through the second dichroic beam splitter and the first dichroic beam splitter and wherein the third and fourth excited luminescence image are captured by the camera 50 μs apart and responsive to triggers specifying a second time delay to capture the third excited luminescence image 130 μs after turning off the second luminescence exciting beam pulses;
digitizing, by the camera computer, the received third and fourth luminescence images of the sample gemstone; and
sending, by the camera computer, the digitized images of the sample gemstone table to the computer data storage.