Method and system for laser marking a gemstone
AssigneePotomac Photonics, Inc.
InventorsC. Paul Christensen, Sidney P. Wright
Life of this patent
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Abstract
A system for laser marking a gemstone (10) is provided. A pulsed laser (20) generates a laser pulse (40) which is then directed towards a focusing element (60) through optical means (30). Lens (60) focuses the laser pulse into focused pulse (70). The focused pulse (70) is projected onto a surface of gemstone (80) which is mounted in fixture (90). A computer control system (110) allows a user to input and control a predetermined path of displacement between the gemstone (80) and the focused laser pulse (70).
Claims20
A gemstone laser marking system comprising:
- a gemstone mounted on a fixture;
- a pulsed laser for generating a laser pulse having a pulse duration of less than 1 nanosecond;
- focusing means for focusing said laser pulse onto a surface of said gemstone to be marked;
- means for displacing said gemstone with respect to said laser pulse in a three orthogonal axes mode of operation.
A method of laser marking a gemstone comprising the steps of:
- (a) generating a laser pulse having a pulse duration of less than 1 nanosecond;
- (b) focusing said laser pulse onto a surface of a gemstone;
- (c) displacing said surface of said gemstone with respect to said focused laser pulse along three orthogonal axes.
Dependencies are inferred from the claim text.