Laser marking on diamonds
AssigneeSarin Technologies Ltd.
InventorAbraham Kerner
Life of this patent
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Abstract
A diamond marking attachment comprising a laser, for a 3D diamond mapping apparatus, and a method of laser marking on a diamond surface, via a material that is capable of interacting with a laser beam either in a way that this material is permanently changed and turns into a char mark that adheres to the diamond surface, or in a way that a permanent mark is etched through the material into the diamond surface.
Claims27
A diamond marking attachment for a 3D diamond mapping apparatus capable of generating a map of a diamond whose surface is to be marked with a predetermined pattern and of determining a succession of marking points representing said pattern, said attachment comprising:
- a laser source with its associated focusing optics for emitting a focused laser beam along an optical path;
- marking position establishing system to move the optical path relative to the diamond and to thereby bring them both in a marking position, and
- computer means to manipulate said marking position establishing to bring the laser beam and the diamond into said marking position successively in each of said marking point.
A method of laser marking on a diamond surface comprising the steps of:
- (a) coating the diamond surface with a material that is capable of interacting with a laser beam in a way that a permanent mark is etched therethrough into the diamond surface, at much lower laser power E1 then the power E2, that would have been required for achieving such marking directly on the diamond surface without the coating;
- and
- (b) marking the coated diamond surface with a focused laser beam of the power E1.
A method of laser marking on a diamond surface comprising the steps of:
- (a) coating the diamond surface with a material that is capable of interacting with a laser beam in a way that said coating material is permanently changed and turns into a char mark that adheres to the diamond surface, at much lower laser power E3 than the power E2 that would have been required for achieving such marking directly on the diamond surface without the coating and
- (b) marking the coated diamond surface with a focused laser beam having the power E3.
Dependencies are inferred from the claim text.