Gemstone registration system

摘要

A device for producing a reproducible identification pattern of a polished gemstone includes light directing means for directing a focused beam of light onto a gemstone orientated in a particular known manner to produce an output of the internal refraction and reflection characteristics of the gemstone including reflected light beams having particular locations, sizes and intensities. The device also includes automated means for changing a position of the gemstone relative to the focused beam of light; and also a means for recording the output in a manner to record the relative size and location of the reflected light beams.

主权项

1. A device for producing a reproducible identification pattern of a polished gemstone comprising:
a light source configured to direct a focused beam of light onto a gemstone orientated in a particular known manner to produce an output of the internal refraction and reflection characteristics of the gemstone including reflected light beams having particular locations, sizes and intensities; a platform having a planar top surface to allow the gemstone to be oriented with its table facing down and seated against the planar top surface of the platform, the platform being formed of a material that allows the focused beam of light to pass therethrough and contact the gemstone disposed on the planar top surface; a gimbal assembly for changing a position of the gemstone relative to the focused beam of light, wherein the gimbal assembly includes a first gimbal and a second gimbal, the first gimbal pivoting about a first axis and the second gimbal pivoting about a second axis that is perpendicular to the first axis, the platform being coupled to the second gimbal such that the platform extends across a center opening of the second gimbal, wherein the first gimbal is operatively coupled to a first motor by a first drive shaft for controllably rotating the first gimbal about the first axis and the second gimbal is operatively coupled to a second motor by a second drive shaft for controllably rotating the second gimbal about the second axis; and a device for recording the output in a manner to record at least one of the relative size and location of the reflected light beams.