CA2621225A1 - Laser marking system for gemstones and method of authenticating marking - Google Patents
Laser marking system for gemstones and method of authenticating marking Download PDFInfo
- Publication number
- CA2621225A1 CA2621225A1 CA002621225A CA2621225A CA2621225A1 CA 2621225 A1 CA2621225 A1 CA 2621225A1 CA 002621225 A CA002621225 A CA 002621225A CA 2621225 A CA2621225 A CA 2621225A CA 2621225 A1 CA2621225 A1 CA 2621225A1
- Authority
- CA
- Canada
- Prior art keywords
- laser
- gemstone
- marking
- optical system
- holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010437 gem Substances 0.000 title abstract 5
- 229910001751 gemstone Inorganic materials 0.000 title abstract 5
- 238000010330 laser marking Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 abstract 3
- 238000003384 imaging method Methods 0.000 abstract 1
- 230000036039 immunity Effects 0.000 abstract 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
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 focusing 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.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US963896P | 1996-01-05 | 1996-01-05 | |
US60/009,638 | 1996-01-05 | ||
US08/690,309 US5932119A (en) | 1996-01-05 | 1996-07-30 | Laser marking system |
US08/690,309 | 1996-07-30 | ||
CA002238612A CA2238612C (en) | 1996-01-05 | 1996-11-14 | Laser marking system for gemstones and method of authenticating marking |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002238612A Division CA2238612C (en) | 1996-01-05 | 1996-11-14 | Laser marking system for gemstones and method of authenticating marking |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2621225A1 true CA2621225A1 (en) | 1997-07-17 |
CA2621225C CA2621225C (en) | 2009-11-03 |
Family
ID=39400609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2621225 Expired - Fee Related CA2621225C (en) | 1996-01-05 | 1996-11-14 | Laser marking system for gemstones and method of authenticating marking |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2621225C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108694886A (en) * | 2017-04-07 | 2018-10-23 | 北京柯斯元科技有限公司 | Anti-fake marking device |
CN113843510A (en) * | 2021-09-13 | 2021-12-28 | 武汉先同科技有限公司 | Mobile marking type handheld laser marking machine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12072294B2 (en) * | 2022-05-25 | 2024-08-27 | Oino Llc | Systems and methods for reliable authentication of jewelry and/or gemstones |
-
1996
- 1996-11-14 CA CA 2621225 patent/CA2621225C/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108694886A (en) * | 2017-04-07 | 2018-10-23 | 北京柯斯元科技有限公司 | Anti-fake marking device |
CN113843510A (en) * | 2021-09-13 | 2021-12-28 | 武汉先同科技有限公司 | Mobile marking type handheld laser marking machine |
CN113843510B (en) * | 2021-09-13 | 2024-06-04 | 武汉先同科技有限公司 | Mobile marking type hand-held laser marking machine |
Also Published As
Publication number | Publication date |
---|---|
CA2621225C (en) | 2009-11-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20161114 |