WO2011122989A1 - Способ позиционирования и детектирования невидимой метки и детектор для его осуществления - Google Patents
Способ позиционирования и детектирования невидимой метки и детектор для его осуществления Download PDFInfo
- Publication number
- WO2011122989A1 WO2011122989A1 PCT/RU2011/000171 RU2011000171W WO2011122989A1 WO 2011122989 A1 WO2011122989 A1 WO 2011122989A1 RU 2011000171 W RU2011000171 W RU 2011000171W WO 2011122989 A1 WO2011122989 A1 WO 2011122989A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- product
- optical system
- axis
- positioning
- visualization
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/87—Investigating jewels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/60—Type of objects
- G06V20/66—Trinkets, e.g. shirt buttons or jewellery items
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/80—Recognising image objects characterised by unique random patterns
Definitions
- the invention relates to the field of detection of identification marks formed on the surfaces of valuable products in order to determine their authenticity and can be used mainly to determine the authenticity of products made of semiprecious or precious stones, for example, diamonds.
- the prior art method for detecting a visually invisible identification mark on the surface of a valuable product according to which the installation and fixing of the product on a positioning means is carried out, ensuring that the center of the investigated surface of this product (image of the identification mark) is aligned with the optical axis of the visualization tool, which is used for detection in the composition of the optical system; fixation axial positioning means relative to the optical system; illumination of the investigated surface of the product with a directed beam of light through an autonomous radiation source; visualization and observation of the mark in reflected light beams by adjusting the visualization means of the optical system (RU, Ns 2 215 659 C2).
- the prior art method for positioning a valuable product with an identification tag in the process of its detection which consists in installing and fixing the product on a positioning tool with the possibility of aligning the center of the investigated surface of this product (image of the identification tag) with the optical axis of the imaging tool, which is used for detection as part of the optical system, after which the axial position of the optical system is fixed relative to the position agent (RU, Ns 2 215 659 C2).
- a detector is known from the prior art for registering a visually invisible identification mark on the surface of a valuable product, including positioning means mutually fixed in the axial direction and an optical system located in the housing, including at least visualization means and a backlight in the form of an autonomous directional radiation source, which structurally-technologically organized with the possibility of highlighting the surface of the product in the area of the identification tag and its visual user observation through visualization means in the reflected light (RU, Ns 2215659 C2).
- the “method” the need to individually configure the visualization tool for each specific size of the detected product to ensure the necessary quality (sharpness and contrast) of the visual perception of the label by the user, which complicates the detection process and limits functionality due to narrowing the range of product sizes, for which the required visualization quality is provided by means of the specifically used visualization tool.
- device limited functionality due to narrowing the range of product sizes for which the required quality of visualization is provided by means of the specifically used visualization means.
- the claimed technical solutions were based on the task of expanding functional and technological capabilities with simplicity of design, adjustment technology and ensuring high quality of the visualized image for a wide range of sizes of detected products.
- the technical result realized by the claimed technical solutions is to increase the quality (contrast) of the image of the detected marks for a wide range of product sizes with the simplicity of the technological process of positioning the product, as well as to provide high-quality (sharp and contrast) visualization of the image of the tag on products of various sizes one-time tuning of the optical system.
- the technical result set is ensured by the fact that in the method for detecting a visually invisible identification mark on the surface of a valuable product, according to which carry out: installation and fixation of the product on a positioning tool with ensuring the alignment of the center of the investigated surface of this product with the optical axis of the visualization tool, which is used for detection as part of the optical system; fixing the positioning means in the axial direction relative to the optical system; illumination of the investigated surface of the product with a directed beam of light through an autonomous radiation source; visualization and observation of the mark by the user in reflected light beams by adjusting the visualization means of the optical system according to the invention, as a positioning means, a self-centering clamping device with two reciprocating jaws that are equipped with fixing and mounting surfaces is used; in the process of positioning, the surface of a valuable product with an identification mark is placed in the plane of the mounting surfaces of the jaws of the clamping device; the distance from the center of the investigated surface of the product to the focus of the visualization means provides a constant value for a given range of sizes of
- the method is that the product is mounted and fixed on a positioning means with the possibility of combining the center of the surface of the test surface of this product with the optical axis of the imaging tool, which used for detection as part of the optical system, after which the axial position of the optical system relative to positioning means according to invention, before installing and fixing the product on a positioning device, which is used as a self-centering clamping device with two reciprocating jaws equipped with mounting and fixing surfaces, the surface of the product with an identification mark is mated with an autonomous reference plane; then, the mounting surfaces of the jaws of the clamping device in the extended position are brought into contact with said reference plane to ensure that the detected product is covered by the fixing surfaces of the jaws and is fixed with the formation of contact spots at the points of contact of the product with the fixing surfaces; then they carry out mutual spatial fixation of the positioning means and the optical system in the axial direction so that the distance from the test surface of the product
- the positioning means is made in the form of a self-centering clamping device with two reciprocating jaws, each of which is equipped one mounting and two locking surfaces, the last of which are oriented along the longitudinal axis of the detector at an angle to one another with the formation of a symmetrical groove of a triangular profile, and the axis of symmetry of the grooves of the opposite jaws lying in the same plane with the longitudinal axis of the detector; the geometric parameters of the said grooves are selected from the condition that the product can be covered along the perimeter with the fixing surfaces of the jaw
- an elastic, predominantly light-absorbing coating to the fixing surfaces of the jaws of the clamping device, for example, from Teflon, silicone or rubber.
- the visualization tool can be installed in such a way that its optical axis coincides with the axis of symmetry of the detector, which is also the axis of symmetry of the clamping device, while the optical system must be equipped with a translucent plate mounted at an angle with respect to the optical axis, and the illumination means should be spatially oriented with the possibility of generating a light beam, the axis of symmetry of which, after reflection from the said plate, coincides with the optical axis of the visor alizatsii.
- the visualization tool can also be installed in such a way that its optical axis is located at a calculated angle to the symmetry axis of the detector, which is functionally also the symmetry axis of the clamping device, while the illumination means is spatially oriented with the possibility of generating a light beam whose symmetry axis is relative to the aforementioned detector axis in one plane and at the same angle as the optical axis of the visualization tool, but mirror symmetrically.
- the detector kit can be equipped with an autonomous, i.e., kinematically not connected with the detector, plate with a reference plane, which is functionally a means of positioning the mounting surfaces of the jaws in one reference plane with the surface of the product on which an identification mark is applied.
- an autonomous, i.e., kinematically not connected with the detector, plate with a reference plane which is functionally a means of positioning the mounting surfaces of the jaws in one reference plane with the surface of the product on which an identification mark is applied.
- the claimed invention is illustrated by graphic materials.
- FIG. 1 - one of the possible options for the constructive implementation of the device (detector) for the implementation of the claimed technical solutions (longitudinal section).
- FIG. 2 is another possible embodiment of a device (detector) for the implementation of the claimed technical solutions (longitudinal section).
- FIG. 5 is an illustration of a positioning process using a reference plane.
- nodes and elements of the detector for implementing the claimed detection method are indicated by the following positions.
- the claimed method for detecting a visually invisible identification mark 1 formed on one of the flat surfaces 2 (faces) of a valuable product 3 is as follows. First, installation and fixing of the product 3 on the positioning means 4 is ensured, ensuring that the center 5 of the test surface 2 (the center of the image of the mark 1) of this product 3 is aligned with the optical axis 6 of the imaging tool, made for example in the form of an eyepiece 12, which is used for detection optical system 8. Then carry out the fixation of the positioning means 4 in the axial direction relative to the optical system 8. Next, organize the illumination of the investigated surface 2 of the product 3 with a directed beam of 9 light by means of an autonomous radiation source 10.
- the mark 1 is visualized and observed by the user in the reflected light rays 1 1 by adjusting the visualization tool (for example, the lens / not shown conventionally in graphic materials / if a digital camera is used for observation, or eyepiece 12 if the eye is observing) optical system 8.
- the visualization tool for example, the lens / not shown conventionally in graphic materials / if a digital camera is used for observation, or eyepiece 12 if the eye is observing
- the positioning means 4 use a self-centering clamping device with two reciprocating spring-loaded jaws 14 and 15, which are equipped with locking ited 16, 17 and mounting surfaces 18, 19, respectively.
- the surface 2 of the valuable product 3 with the identification mark 1 is placed in the plane of the mounting surfaces 18 and 19 of the jaws 14 and 15, respectively, of the clamping device. This can be done by various technological methods, in particular, using an autonomous reference plane 20.
- the distance from the center of the test surface 2 of the product 3 to the focus F of the visualization tool (for example, the eyepiece 12) provides a constant value (const) for a given range of sizes of the detected products 3 (e.g. faceted precious stones, in particular - diamonds).
- the spatial spatial fixation of the positioning means 4 and the optical system 8 in the axial direction is always carried out in the same spatial position, for which a one-time adjustment of the visualization means, for example, the eyepiece 12, is carried out by a specific user according to the optical parameters of his vision.
- the claimed positioning method (the simplest and most effective) of a valuable product 3 with a mark applied on one of its flat surfaces 2 / faces / identification mark 1 in the process of its detection is as follows.
- the product is installed and fixed on the positioning means 4 with the possibility of combining the center 5 of the test surface (center of the image of the mark 1) of this product 3 with the optical axis 6 of the imaging tool (for example, eyepiece 12), which is used for detection as part of the optical system 8. After that fix the axial position of the optical system 8 relative to the positioning means 4.
- the surface of the product 3 with identification mark 1 is mated with an autonomous reference plane 20. Then, the mounting surfaces 18 and 19 jaws 14 and 15, respectively, of the clamping device in the extended position is also brought into contact with said reference plane 20 to ensure coverage of the detected product 3 by the fixing surfaces 16, 17 of the jaws 14 , 15, respectively, and carry out its fixation with the formation of contact spots in the places of contact of the product 3 with the fixing surfaces 16 and 17.
- the spatial spatial fixation of the positioning means 4 (clamping device) and the optical system 8 in the axial direction so that the distance from the center of the investigated surface 2 of the product 3 to the focus F means of visualization (for example, eyepiece 12) is a constant value (const) for a given range of sizes of detected products 3 (for example, faceted precious, in particular diamonds).
- the spatial spatial fixation of the positioning means 4 (clamping device) and the optical system 8 in the axial direction is always carried out in the same position, for example, by means of spring-loaded ball clamps 21, 22 (installed in the housing 42 of the optical system 8), placed in the profile an annular groove 23 (made on the outer surface of the housing 13 of the clamping device).
- a detector for registering a visually invisible identification mark 1 formed on the surface 2 of a valuable article 3 includes the following nodes and elements.
- the visualization tool (for example, eyepiece 12) and the source 10 are structurally and technologically organized so that the surface 2 of the product 3 can be illuminated in the area of the identification mark 1 and visually observed by the user through the visualizer (for example, eyepiece 12) in reflected light.
- the positioning means 4 is made in the form of a self-centering clamping device with two reciprocating spring-loaded (for example, by means of springs 24 and 25) jaws 14 and 15, which are installed in the housing 13 of the clamping device by means of guides 26 and 27 located in the slide bushings 28 and 29 , respectively, and fixed from rotation, for example, by means of guide keys (conventionally not shown in graphic materials). Most it is advisable to install the springs 24 and 25 with the possibility of providing adjustment of their efforts.
- Each jaw 14 and 15 is equipped with one mounting surface 18, 19, and two locking surfaces 16, 17, respectively.
- the fixing surfaces 16 and 17 are oriented along the longitudinal axis of the detector (coinciding with the optical axis 6 of the imaging device, in particular, the eyepiece 12, in the embodiment of FIG.
- the axis of symmetry of the grooves of the opposing jaws 14 and 15 lie in the same plane with the longitudinal axis of the detector.
- the geometric parameters of the said grooves are selected from the condition that the product 3 can be covered around the perimeter by the fixing surfaces 16 and 17 of the jaws 14 and 15 with the formation of contact spots.
- Mutual axial fixation of the housing 42 of the optical system 8 and the positioning means 4 is organized with the possibility of ensuring the constancy of the distance h from the focus F of the visualization tool to the said mounting surfaces 18, 19 of the jaws 14, 15 of the clamping device, spatially coinciding with the plane of the investigated surfaces 2 of the articles 3 of a given range of sizes after they are fixed for detection.
- said mutual axial fixation is carried out by means of spring-loaded ball clamps 21, 22 (located in the housing 42 of the optical system 8) installed in a profile annular groove 23 (made on the outer surface of the housing 13 of the clamping device).
- Such a fixation makes it possible to rotate (in the direction of arrow - V) of the housing 42 of the optical system 8 relative to the housing 13 of the positioning means 4 (clamping device), which allows for visualization to orient the image of the mark 1 (for example, inscription) relative to the user's eye in the position necessary for reading by the relative rotation of the buildings 42 and 13.
- the extension of the jaws 14, 15 when positioning the product 3 can be kinematically performed, for example, by means of a cam mechanism organized in the form of rigidly connected to the jaws 14, 15 leading fingers 30, 31 located in the inclined grooves 32, 33 (the corresponding surfaces of which are functionally cams), which are made in the plug 34, mounted in the housing 13 of the clamping device with the possibility of rotation (arrow V) and fixed in the axial direction by means of ball clamps 38, 39 interacting with the surfaces of the profile annular groove 40, made on the outer surface of the plug 34.
- the plug 34 is equipped with a knurled flange 35.
- the plug can also It can be equipped with a central through hole 36, through which it is possible for the user to visually observe the position of the product 3 relative to the fixing surfaces 16, 17 of the jaws 14, 15 during the process of positioning and fixing the product 3, which facilitates this process.
- a light-absorbing elastic coating for example, made of Teflon, silicone or black rubber, can be applied to the fixing surfaces 16, 17 of the jaws 14.15 of the clamping device. This provides a more reliable fixation of the product 3 and eliminates the appearance of glare on the surface of the product 3 as a result of re-reflection of light rays (generated by the source 10 and penetrating the product 3 / crystal /) from the fixing surfaces 16 and 17 (that is, it increases the contrast of the image of the mark 1 when it is visualized )
- the visualization means (in particular, the eyepiece 12) is installed in such a way that its optical axis 6 coincides with the axis of symmetry of the detector, which is also functionally the axis of symmetry of the clamping device.
- the optical system 8 should be equipped with a translucent plate 41 mounted at an angle with respect to the said optical axis 6, and the illumination means (source 10) should be spatially oriented with the possibility of generating a light beam 9, the axis of symmetry of which after reflection from the said plate coincides with the optical axis 6 of the visualization tool (for example, eyepiece 12).
- the detector Fig.
- visualization means in particular, eyepiece 12
- eyepiece 12 visualization means
- the backlight (source 10) is spatially oriented with the possibility of generating a light beam 9, the axis of symmetry of which is located in the same plane with the same axis as the optical axis 6 of the visualization means (eyepiece 12), but mirror symmetrically.
- the occurrence of glare on the investigated surface 2 of the product 3 is eliminated as a result of the effect of total internal reflection in the crystal of the product 3 when it is illuminated, which increases the contrast of the image of the mark 1 during visualization.
- the detector can be equipped with an autonomous, i.e., kinematically not connected with the detector, plate with a reference plane 20, which is functionally a means of positioning the mounting surfaces 18, 19 of the jaws 14, 15 in one reference plane 20 with a surface 2 on which is applied identification mark 1.
- This plate in the detector kit allows a high degree of accuracy to carry out the process of positioning the product 3 in non-standard conditions, for example, in the absence of any natural horizontal plane, in particular - the table.
- the claimed combination of essential features makes it possible to position products 3 of various sizes (both with respect to the spatial position of the investigated surface 2, and with respect to the spatial position of the center 5 of this surface 2 / center 5 of the mark image /) in the same position relative to focus F of the visualization tool (in particular, the eyepiece 12), which provides high quality (sharpness and contrast) of the image of the mark 1 when it is visualized for a given range Zone sizes of detected objects 3 (regulated geometric and technological parameters used clamping device).
- the constancy of the distance from the focus F of the imaging tool (eyepiece 12) to the center 5 of the test surface 2 (center of the image of the mark 1) eliminates the repeated adjustment of the visualization tool (for example, eyepiece 12) when detecting products of 3 different sizes. That is, a particular individual user adjusts the optical parameters of the visualization tool (for example, the eyepiece 12) of the detector once (during the first use) in accordance with the optical parameters of his vision, which simplifies the detection process.
- the claimed technical solutions can be widely used in the field of detecting identification marks formed on the surfaces of valuable products in order to determine their authenticity and can be used mainly to determine the authenticity of products made of semiprecious or precious stones, for example, diamonds.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2794835A CA2794835A1 (en) | 2010-03-29 | 2011-03-18 | Method for detecting an identification mark invisible to the naked eye on the surface of a valuable article, a method for positioning it over the course of detection, and a detector for process implementation |
EP11763119A EP2554978A1 (en) | 2010-03-29 | 2011-03-18 | Method for positioning and detecting an invisible mark and detector for implementing same |
RU2012145797/28A RU2012145797A (ru) | 2010-03-29 | 2011-03-18 | Способ позиционирования и детектирования невидимой метки и детектор для его осуществления |
US13/638,575 US20130208282A1 (en) | 2010-03-29 | 2011-03-18 | Method for positioning and detecting an invisible mark and detector for implementing same |
CN2011800262507A CN102906562A (zh) | 2010-03-29 | 2011-03-18 | 定位和检测不可见标记的方法以及实施该方法的检测器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2010111640/08A RU2427908C1 (ru) | 2010-03-29 | 2010-03-29 | Способ детектирования визуально невидимой идентификационной метки на поверхности ценного изделия, способ его позиционирования в процессе детектирования и детектор для реализации процесса |
RU2010111640 | 2010-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011122989A1 true WO2011122989A1 (ru) | 2011-10-06 |
Family
ID=44712452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2011/000171 WO2011122989A1 (ru) | 2010-03-29 | 2011-03-18 | Способ позиционирования и детектирования невидимой метки и детектор для его осуществления |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130208282A1 (ru) |
EP (1) | EP2554978A1 (ru) |
CN (1) | CN102906562A (ru) |
CA (1) | CA2794835A1 (ru) |
RU (2) | RU2427908C1 (ru) |
WO (1) | WO2011122989A1 (ru) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1020081A5 (nl) * | 2011-04-20 | 2013-04-02 | Gemex Systems Inc | Edelsteenpositionerings-en analysesysteem. |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT514332B1 (de) | 2013-08-27 | 2014-12-15 | Swarovski D Kg | Anordnung zur Analyse eines durch Brechung und Reflexion an einem Schmuckstein hervorgerufenen Lichtmusters |
CN104280396A (zh) * | 2014-09-29 | 2015-01-14 | 苏州赛森电子科技有限公司 | 适用于led生产用蓝宝石基板检测与识别装置 |
CN104568853B (zh) * | 2014-12-02 | 2017-03-22 | 爱彼思(苏州)自动化科技有限公司 | 工件外观光泽检测工艺方法 |
CN104568856A (zh) * | 2014-12-02 | 2015-04-29 | 爱彼思(苏州)自动化科技有限公司 | 能够自动定位的工件光泽检测设备 |
CN104849847B (zh) * | 2015-05-19 | 2017-08-01 | 梧州学院 | 一种袖珍式暗场宝石显微镜 |
WO2017109781A1 (en) * | 2015-12-22 | 2017-06-29 | Adir Mugrabi | A portable small-object holding device and a method for using same |
CN111381390A (zh) * | 2018-12-29 | 2020-07-07 | 南昌欧菲光科技有限公司 | 显示面板 |
CN112212825B (zh) * | 2020-09-27 | 2021-10-15 | 中国科学院西安光学精密机械研究所 | 天文观测用经纬仪俯仰轴系的同轴自准直调整装置及方法 |
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GB1416568A (en) * | 1972-10-20 | 1975-12-03 | Wilson S S | Method of and apparatus for evaluating registering and identifying gemstones |
EP0425426A2 (en) * | 1989-10-27 | 1991-05-02 | Wellborn Ltd. | Method for identifying gemstones, particularly diamonds |
RU2058856C1 (ru) * | 1993-03-04 | 1996-04-27 | Легкий Николай Михайлович | Зажимное самоцентрирующее устройство |
US20010012055A1 (en) * | 1999-12-27 | 2001-08-09 | Yasuhira Mori | Article image data marking method and apparatus and gem stone marked with image data |
US6391215B1 (en) | 1997-05-23 | 2002-05-21 | Gersan Establishment | Diamond marking |
RU2215659C2 (ru) | 1997-12-24 | 2003-11-10 | Джерсан Эстаблишмент | Маркировка алмазов или драгоценных камней с помощью множества штрихов |
WO2006092035A1 (en) * | 2005-03-01 | 2006-09-08 | International Gemstone Registry Inc. | Method and system for laser marking in the volume of gemstones such as diamonds |
RU2373307C1 (ru) | 2008-07-24 | 2009-11-20 | Юрий Константинович Низиенко | Идентификационная метка для маркировки ценных изделий и способ ее формирования |
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CN1314997A (zh) * | 1998-06-16 | 2001-09-26 | 奥宝科技有限公司 | 检查基本平坦平面的发光器 |
-
2010
- 2010-03-29 RU RU2010111640/08A patent/RU2427908C1/ru not_active IP Right Cessation
-
2011
- 2011-03-18 RU RU2012145797/28A patent/RU2012145797A/ru unknown
- 2011-03-18 EP EP11763119A patent/EP2554978A1/en not_active Withdrawn
- 2011-03-18 CN CN2011800262507A patent/CN102906562A/zh active Pending
- 2011-03-18 WO PCT/RU2011/000171 patent/WO2011122989A1/ru active Application Filing
- 2011-03-18 CA CA2794835A patent/CA2794835A1/en not_active Abandoned
- 2011-03-18 US US13/638,575 patent/US20130208282A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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GB1416568A (en) * | 1972-10-20 | 1975-12-03 | Wilson S S | Method of and apparatus for evaluating registering and identifying gemstones |
EP0425426A2 (en) * | 1989-10-27 | 1991-05-02 | Wellborn Ltd. | Method for identifying gemstones, particularly diamonds |
RU2058856C1 (ru) * | 1993-03-04 | 1996-04-27 | Легкий Николай Михайлович | Зажимное самоцентрирующее устройство |
US6391215B1 (en) | 1997-05-23 | 2002-05-21 | Gersan Establishment | Diamond marking |
RU2215659C2 (ru) | 1997-12-24 | 2003-11-10 | Джерсан Эстаблишмент | Маркировка алмазов или драгоценных камней с помощью множества штрихов |
US20010012055A1 (en) * | 1999-12-27 | 2001-08-09 | Yasuhira Mori | Article image data marking method and apparatus and gem stone marked with image data |
WO2006092035A1 (en) * | 2005-03-01 | 2006-09-08 | International Gemstone Registry Inc. | Method and system for laser marking in the volume of gemstones such as diamonds |
RU2373307C1 (ru) | 2008-07-24 | 2009-11-20 | Юрий Константинович Низиенко | Идентификационная метка для маркировки ценных изделий и способ ее формирования |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1020081A5 (nl) * | 2011-04-20 | 2013-04-02 | Gemex Systems Inc | Edelsteenpositionerings-en analysesysteem. |
Also Published As
Publication number | Publication date |
---|---|
EP2554978A1 (en) | 2013-02-06 |
CN102906562A (zh) | 2013-01-30 |
US20130208282A1 (en) | 2013-08-15 |
RU2012145797A (ru) | 2014-05-10 |
RU2427908C1 (ru) | 2011-08-27 |
CA2794835A1 (en) | 2011-10-06 |
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