Laser marking system for gemstones and method of...

B - Operations – Transporting – 23 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B23K 26/04 (2006.01) B23K 26/06 (2006.01) G06K 1/12 (2006.01) G07C 11/00 (2006.01) H01R 13/658 (2006.01)

Patent

CA 2238612

A laser microinscribing system includes a Q-switched Nd: YLF laser (1) with a harmonic converter producing an output of about 530 nm, an optical system including a focussing lens, a gemstone mounting holder (144) that is displaceable along three axes for moving a workpiece (11) such as a gemstone with respect to the optical system so that laser energy is presented to desired positions, an imaging system for viewing the gemstone from a plurality of viewpoints including a top CCD (28) and a side CCD (32), a processor controlling the position of the holder (144) based on marking instructions and a predetermined program, and a storage system (156) for storing information relating to images of a plurality of workpieces. A rigid frame supports the laser (1), the optical system and the holder (144) to increase immunity to vibrational misalignments. A secure certificate of authenticity of a marked workpiece (11) is preferably provided having an image of the marking as well as the outline of a girdle of the gemstone.

L'invention concerne un système de micromarquage par énergie laser comprenant: un laser Nd:YLF à impulsions géantes (1) avec un convertisseur harmonique produisant un signal d'une longueur d'onde de 530 nm environ; un système optique pourvu d'une lentille de focalisation; un support de pierre précieuse (144) pouvant être mû le long de trois axes pour déplacer une pièce à marquer (11), telle qu'une pierre précieuse, par rapport au système optique, de sorte que l'énergie laser vienne frapper des emplacements désirés; un système d'imagerie permettant d'observer la pierre précieuse depuis une pluralité de points avantageux et comprenant un capteur à CCD supérieur (28) et un capteur à CCD latéral (32); un processeur commandant la position du support (144) sur la base d'instructions de marquage et d'un programme prédéterminé; et un système de mémoire (156) servant au stockage d'informations relatives aux images d'une pluralité de pièces. Un châssis rigide soutient le laser (1), le système optique et le support (144) pour empêcher encore plus les désalignements dus aux vibrations. Un certificat sûr d'authenticité concernant une pièce marquée (11) est de préférence fourni avec une image montrant les marques ainsi que le contour de la rondiste de la pierre précieuse.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Laser marking system for gemstones and method of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser marking system for gemstones and method of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser marking system for gemstones and method of... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2053211

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.