CA2399222A1 - Systems, apparatuses and methods for diamond color measurement and analysis - Google Patents
Systems, apparatuses and methods for diamond color measurement and analysis Download PDFInfo
- Publication number
- CA2399222A1 CA2399222A1 CA002399222A CA2399222A CA2399222A1 CA 2399222 A1 CA2399222 A1 CA 2399222A1 CA 002399222 A CA002399222 A CA 002399222A CA 2399222 A CA2399222 A CA 2399222A CA 2399222 A1 CA2399222 A1 CA 2399222A1
- Authority
- CA
- Canada
- Prior art keywords
- light
- diamond
- daylight
- analysis
- apparatuses
- 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
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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
Abstract
The present invention comprises systems, apparatuses and methods for measuring and analyzing gem color in a way which reliably and consistently simulates visual color analysis methodology. The preferred system embodiment of the present invention comprises several aspects, including the use of daylight approximating lamps (10), such as daylight approximating fluorescent tubes or halogen lamp boosted with a filter to approximate daylight, and a light detector which light of a specific angle such that the system approximates visual analysis methodology. In the case of diamond analysis, in one embodiment, the system of the invention includes three major elements: a daylight approximating light source (10) that illuminates the pavilion side of the diamond (40), a light detector (30) which detects light coming out at a specific angle from the pavilion side of the diamond (40), and an optical measurement device which measures the light detected by the light detector (30).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/505,981 US6473164B1 (en) | 2000-02-16 | 2000-02-16 | Systems, apparatuses and methods for diamond color measurement and analysis |
US09/505,981 | 2000-02-16 | ||
PCT/US2001/003869 WO2001061316A1 (en) | 2000-02-16 | 2001-02-06 | Systems, apparatuses and methods for diamond color measurement and analysis |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2399222A1 true CA2399222A1 (en) | 2001-08-23 |
CA2399222C CA2399222C (en) | 2005-08-16 |
Family
ID=24012674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002399222A Expired - Lifetime CA2399222C (en) | 2000-02-16 | 2001-02-06 | Systems, apparatuses and methods for diamond color measurement and analysis |
Country Status (15)
Country | Link |
---|---|
US (1) | US6473164B1 (en) |
EP (1) | EP1274982A4 (en) |
JP (1) | JP3790827B2 (en) |
KR (1) | KR20020075433A (en) |
CN (1) | CN100430713C (en) |
AU (2) | AU2001234875B2 (en) |
CA (1) | CA2399222C (en) |
EA (1) | EA008016B1 (en) |
HK (1) | HK1051721A1 (en) |
IL (1) | IL150989A0 (en) |
MX (1) | MXPA02007812A (en) |
TW (1) | TW548401B (en) |
UA (1) | UA73978C2 (en) |
WO (1) | WO2001061316A1 (en) |
ZA (1) | ZA200206079B (en) |
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GB2379536A (en) * | 2000-05-23 | 2003-03-12 | David W Hendry Jr | System and method for appraising and describing jewelry and other valuable items |
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ES2219483T3 (en) * | 2001-12-13 | 2004-12-01 | Overseas Diamonds Technologies N.V. | DEVICE FOR GENERATING DATA TO DETERMINE A PROPERTY OF A PRECIOUS STONE AND PROCEDURES TO DETERMINE A PROPERTY OF A PRECIOUS STONE. |
AU2003237459A1 (en) * | 2002-06-07 | 2003-12-22 | William R. Bray | Diamond cut scoring system and method |
US6786733B2 (en) | 2002-10-15 | 2004-09-07 | Overseas Diamonds Inc. | Computer-implemented method of and system for teaching an untrained observer to evaluate a gemstone |
IL156808A0 (en) * | 2003-07-07 | 2004-02-08 | Sarin Technologies Ltd | Method and system for gemstone color prediction |
US7088434B2 (en) * | 2003-08-13 | 2006-08-08 | Gemological Institute Of America, Inc. | Apparatus and method for providing spot lighting for gemstone observation |
US7102742B2 (en) * | 2004-01-12 | 2006-09-05 | Gemological Institute Of America, Inc. | Fluorescence measuring device for gemstones |
US7315356B2 (en) * | 2004-05-13 | 2008-01-01 | Haske Martin D | Fire demonstration tool and method for using thereof |
US7158240B2 (en) * | 2004-06-16 | 2007-01-02 | The United States Of America As Represented By The Secretary Of The Army | Measurement device and method |
EP1838993A2 (en) * | 2004-12-17 | 2007-10-03 | Koninklijke Philips Electronics N.V. | Multipurpose lighting unit |
US20090070236A1 (en) * | 2005-05-21 | 2009-03-12 | Ehud Cohen | Diamond and Precious Stone Trading Platform with Funding and Delivery Transparency |
DE102005039679A1 (en) * | 2005-08-22 | 2007-03-08 | Galatea Ltd. | Method for determining the value of an object |
US7800741B2 (en) * | 2005-08-22 | 2010-09-21 | Galatea Ltd. | Method for evaluation of a gemstone |
US7388656B2 (en) * | 2005-12-30 | 2008-06-17 | Yan Liu | Method and system for color grading of gemstones |
AU2008100838B4 (en) * | 2007-04-03 | 2008-12-18 | Opal Producers Australia Limited | Apparatus and method for assessment, evaluation and grading of gemstones |
CN101652654B (en) * | 2007-04-03 | 2012-10-31 | 欧珀生产商澳大利亚有限公司 | Apparatus and methods for assessment, evaluation and grading of gemstones |
KR100904637B1 (en) * | 2007-07-30 | 2009-06-25 | 한양대학교 산학협력단 | Discrimination method of diamonds |
US20090234754A1 (en) * | 2008-03-11 | 2009-09-17 | Dave Lapa | Apparatus, a method, and a system for gemstone evaluation and gemology tutoring over the internet |
CN101539530B (en) * | 2008-03-20 | 2011-08-31 | 香港城市大学 | Method and device for grading colors of diamonds |
US8289621B2 (en) | 2008-10-07 | 2012-10-16 | Gemological Institute Of America, Inc. | Reflected dark field method and apparatus |
CA2739721A1 (en) * | 2008-10-09 | 2010-04-15 | Opal Producers Australia Limited | Modified apparatus and method for assessment, evaluation and grading of gemstones |
US9008832B2 (en) | 2009-09-22 | 2015-04-14 | Eternity Manufacturing Limited | Diamond sorting system |
WO2011101724A2 (en) * | 2010-02-16 | 2011-08-25 | Ricardo Baretzky | Gemstone administration and identification |
US8705018B2 (en) * | 2010-02-25 | 2014-04-22 | Photoscribe, Inc. | Arrangement for and method of examining gemstones |
CN102072770B (en) * | 2010-09-27 | 2013-12-11 | 安徽捷迅光电技术有限公司 | Spectrum analyzer |
CN102175687B (en) * | 2011-01-11 | 2013-01-09 | 国家黄金钻石制品质量监督检验中心 | Determinator for measuring proportion of encrusted diamond |
JP2014094644A (en) * | 2012-11-08 | 2014-05-22 | Bridgestone Corp | Tire for motorcycle |
US20140279338A1 (en) * | 2013-03-13 | 2014-09-18 | Rosy Blue Dmcc | Standard diamond parcel certification for exchange traded funds |
JP5798229B1 (en) * | 2014-03-25 | 2015-10-21 | 株式会社中央宝石研究所 | Jewelry evaluation apparatus and evaluation method |
CN104198456A (en) * | 2014-09-18 | 2014-12-10 | 岛津企业管理(中国)有限公司 | Method for measuring fluorescence intensity and fluorescence color of diamond by adopting fluorescence spectrophotometry |
US10107757B2 (en) | 2015-03-30 | 2018-10-23 | Gemological Institute Of America Inc. (Gia) | Apparatus and method for fluorescence grading of gemstones |
US9678018B2 (en) | 2015-03-30 | 2017-06-13 | Gemological Institute Of America Inc. (Gia) | Apparatus and method for assessing optical quality of gemstones |
RU2624619C2 (en) * | 2015-09-29 | 2017-07-04 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Томский государственный университет систем управления и радиоэлектроники" (ТУСУР) | Device for determining manganite concentration of rare-earth elements |
CN107305188A (en) * | 2016-04-25 | 2017-10-31 | 潘栋雄 | The detection method of diamond color grade |
US10352868B2 (en) * | 2016-06-29 | 2019-07-16 | Sy Kessler Sales, Inc. | Grading lamp for gemstones |
CN106840404B (en) * | 2016-11-23 | 2018-05-01 | 山东省计量科学研究院 | A kind of grading automatical measuring method of diamond color |
CN106679811B (en) * | 2016-11-23 | 2018-06-08 | 石朴(上海)光学科技有限公司 | A kind of grading automatical measuring method of diamond color |
RU2739134C1 (en) * | 2017-12-29 | 2020-12-21 | Голдвэй Текнолоджи Лимитед | Method and system for determining a color group for diamonds |
US10859505B2 (en) * | 2018-01-26 | 2020-12-08 | Gemological Institute Of America, Inc. (Gia) | Fluorescence box for gemological applications |
CN108398410A (en) * | 2018-02-06 | 2018-08-14 | 广州常晖电子科技有限公司 | A kind of phosphorescence and fluorescence test apparatus with real-time camera function |
CN108896546A (en) * | 2018-04-13 | 2018-11-27 | 山东省计量科学研究院 | A kind of grading automatical measuring device of diamond color |
CN108905896A (en) * | 2018-07-13 | 2018-11-30 | 安庆市凯立金刚石科技有限公司 | A kind of diamond 360 deg slewing |
WO2020016874A1 (en) | 2018-07-15 | 2020-01-23 | Sarine Technologies Ltd | System and method for evaluating and determining color in gemstones |
US11815465B2 (en) | 2019-03-08 | 2023-11-14 | Gemological Institute Of America, Inc. (Gia) | Portable high-resolution gem imaging system |
US20220072791A1 (en) * | 2019-03-29 | 2022-03-10 | Hewlett-Packard Development Company, L.P. | Determining a light scattering property of an object based on transmission values of the object under different measurement conditions |
CN111007047B (en) * | 2019-12-23 | 2023-08-01 | 中国地质大学(武汉) | Quality grade evaluation method for blue-green ornaments |
JP2023530087A (en) | 2020-06-10 | 2023-07-13 | ジェモロジカル インスティテュート オブ アメリカ インコーポレイテッド(ジーアイエー) | Luminescence Imaging for Gemstone Screening |
TWI792446B (en) * | 2020-07-27 | 2023-02-11 | 美商美國寶石學院公司 | System for gemstone evaluation |
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-
2000
- 2000-02-16 US US09/505,981 patent/US6473164B1/en not_active Expired - Lifetime
-
2001
- 2001-02-06 EP EP01907047A patent/EP1274982A4/en not_active Withdrawn
- 2001-02-06 KR KR1020027010687A patent/KR20020075433A/en not_active Application Discontinuation
- 2001-02-06 EA EA200200782A patent/EA008016B1/en not_active IP Right Cessation
- 2001-02-06 MX MXPA02007812A patent/MXPA02007812A/en active IP Right Grant
- 2001-02-06 WO PCT/US2001/003869 patent/WO2001061316A1/en not_active Application Discontinuation
- 2001-02-06 JP JP2001560659A patent/JP3790827B2/en not_active Expired - Lifetime
- 2001-02-06 IL IL15098901A patent/IL150989A0/en unknown
- 2001-02-06 AU AU2001234875A patent/AU2001234875B2/en not_active Ceased
- 2001-02-06 AU AU3487501A patent/AU3487501A/en active Pending
- 2001-02-06 CA CA002399222A patent/CA2399222C/en not_active Expired - Lifetime
- 2001-02-06 CN CNB018047424A patent/CN100430713C/en not_active Expired - Fee Related
- 2001-02-13 TW TW090103141A patent/TW548401B/en not_active IP Right Cessation
- 2001-06-02 UA UA2002097452A patent/UA73978C2/en unknown
-
2002
- 2002-07-30 ZA ZA200206079A patent/ZA200206079B/en unknown
-
2003
- 2003-05-31 HK HK03103894.8A patent/HK1051721A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP3790827B2 (en) | 2006-06-28 |
HK1051721A1 (en) | 2003-08-15 |
TW548401B (en) | 2003-08-21 |
ZA200206079B (en) | 2003-01-30 |
IL150989A0 (en) | 2003-02-12 |
JP2003523513A (en) | 2003-08-05 |
EP1274982A4 (en) | 2004-06-09 |
EP1274982A1 (en) | 2003-01-15 |
KR20020075433A (en) | 2002-10-04 |
CN100430713C (en) | 2008-11-05 |
US6473164B1 (en) | 2002-10-29 |
EA008016B1 (en) | 2007-02-27 |
AU3487501A (en) | 2001-08-27 |
MXPA02007812A (en) | 2003-03-10 |
CN1398346A (en) | 2003-02-19 |
AU2001234875B2 (en) | 2005-01-27 |
CA2399222C (en) | 2005-08-16 |
UA73978C2 (en) | 2005-10-17 |
WO2001061316A1 (en) | 2001-08-23 |
EA200200782A1 (en) | 2003-02-27 |
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Legal Events
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EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20210208 |