Optics: measuring and testing – Crystal or gem examination
Reexamination Certificate
2006-11-13
2008-12-23
Toatley, Jr., Gregory J (Department: 2877)
Optics: measuring and testing
Crystal or gem examination
C359S440000, C359S801000, C359S802000, C359S804000
Reexamination Certificate
active
07468786
ABSTRACT:
The present invention is an engraved gemstone viewer for viewing a flat, smooth surface of a gemstone that has been micro or nano etched with an inscription such as an identification number. The gemstone is mounted on a piece of jewelry or can remain unmounted when placed inside or otherwise received by the viewer. A source of light directs a light beam toward a magnifying lens coated with a reflection enhancing coating. The lens reflects the light beam along a path incident to the surface of the gemstone containing the inscription. The smooth flat gemstone surface spectrally reflects the light beam along a path back toward the magnifying lens, which produces a viewable light image that reveals the inscription. The inscription is shown as a dark or lightless region of the light image.
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Schoeckert Kurt
Wagner Randall M.
Cook & Franke S.C.
GemEx Systems, Inc.
Giglio Bryan
Sokol Jeffrey S.
Toatley Jr. Gregory J
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