ZA726551B - Ojective assessment of the properties of gems or jewellery stones - Google Patents

Ojective assessment of the properties of gems or jewellery stones

Info

Publication number
ZA726551B
ZA726551B ZA726551A ZA726551A ZA726551B ZA 726551 B ZA726551 B ZA 726551B ZA 726551 A ZA726551 A ZA 726551A ZA 726551 A ZA726551 A ZA 726551A ZA 726551 B ZA726551 B ZA 726551B
Authority
ZA
South Africa
Prior art keywords
ojective
gems
assessment
properties
jewellery stones
Prior art date
Application number
ZA726551A
Other languages
English (en)
Inventor
M Elbe
Original Assignee
Colorant Schmusckstein Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Colorant Schmusckstein Gmbh filed Critical Colorant Schmusckstein Gmbh
Publication of ZA726551B publication Critical patent/ZA726551B/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/389—Precious stones; Pearls
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Adornments (AREA)
ZA726551A 1971-09-29 1972-09-25 Ojective assessment of the properties of gems or jewellery stones ZA726551B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2148582A DE2148582C3 (de) 1971-09-29 1971-09-29 Verfahren zur Erfassung der Eigenschaften von Schmucksteinen durch Lichtreflexion

Publications (1)

Publication Number Publication Date
ZA726551B true ZA726551B (en) 1973-09-26

Family

ID=5820909

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA726551A ZA726551B (en) 1971-09-29 1972-09-25 Ojective assessment of the properties of gems or jewellery stones

Country Status (11)

Country Link
US (1) US3858979A (xx)
JP (1) JPS4842873A (xx)
BE (1) BE789234A (xx)
CH (1) CH560895A5 (xx)
DE (1) DE2148582C3 (xx)
FR (1) FR2158828A5 (xx)
GB (1) GB1403557A (xx)
IL (1) IL40443A (xx)
IT (1) IT967939B (xx)
NL (1) NL7212987A (xx)
ZA (1) ZA726551B (xx)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL43465A (en) * 1973-10-23 1976-12-31 Yeda Res & Dev Gem identification
JPS5129983A (en) * 1974-08-26 1976-03-13 Shuichi Matsumoto Daiyamondono shikichoshikibetsuhoho oyobisono sochi
IL58344A (en) * 1978-10-09 1983-09-30 De Beers Cons Mines Ltd Method of assessing the colour of gems
US4417564A (en) * 1980-06-04 1983-11-29 Lawrence John C Centering and working gemstones
JPS57165742A (en) * 1981-04-04 1982-10-12 Ii R C:Kk Comparing and evaluating device for jewel and jewelry, enabling substitution of price element
JPS57171249A (en) * 1981-04-15 1982-10-21 Ii R C:Kk Identification of jewel and jewely by video
JPS58728A (ja) * 1981-06-25 1983-01-05 Shimadzu Corp ダイヤモンドカラ−測定装置
JPS59103258U (ja) * 1982-12-28 1984-07-11 内藤　清 ダイヤモンドの鑑別装置
JPS60109041U (ja) * 1983-12-27 1985-07-24 有限会社　ジエイ　デイ−　エム ダイヤモンド等の宝石の輝きの判定器具
GB8531396D0 (en) * 1985-12-20 1986-02-05 Gersan Ets Sorting
US5184732A (en) * 1985-12-20 1993-02-09 Gersan Establishment Shape sorting
US5206699A (en) * 1988-05-06 1993-04-27 Gersan Establishment Sensing a narrow frequency band of radiation and gemstones
GB8826224D0 (en) * 1988-11-09 1988-12-14 Gersan Anstalt Sensing shape of object
US5424830A (en) * 1994-10-13 1995-06-13 Andrychuk; Dmetro Method and apparatus for determining the facet angles of a gemstone
US6281680B1 (en) 1994-11-21 2001-08-28 Marion Matthews Method and apparatus for distinguishing synthetic diamonds from natural diamonds
US5559436A (en) * 1994-11-21 1996-09-24 Marion Matthews Method and apparatus for distinguishing synthetic diamonds from natural diamonds
US5966673A (en) 1997-01-10 1999-10-12 Diamond Technologies, Inc. System and method for computerized evaluation of gemstones
US6473164B1 (en) 2000-02-16 2002-10-29 Gemological Institute Of America, Inc. Systems, apparatuses and methods for diamond color measurement and analysis
US7260544B1 (en) * 2000-10-12 2007-08-21 Gemological Institute Of America, Inc. System and methods for evaluating the appearance of a gemstone
DK1319942T3 (da) * 2001-12-13 2004-08-16 Overseas Diamonds Technologies Apparat for generering af data til bestemmelse af en egenskab af en ædelsten og metoder og computerprogrammer til bestemmelse af en egenskab af en ædelsten
US7508608B2 (en) * 2004-11-17 2009-03-24 Illumina, Inc. Lithographically fabricated holographic optical identification element
US7619819B2 (en) * 2002-08-20 2009-11-17 Illumina, Inc. Method and apparatus for drug product tracking using encoded optical identification elements
US7872804B2 (en) * 2002-08-20 2011-01-18 Illumina, Inc. Encoded particle having a grating with variations in the refractive index
US7900836B2 (en) * 2002-08-20 2011-03-08 Illumina, Inc. Optical reader system for substrates having an optically readable code
US7164533B2 (en) * 2003-01-22 2007-01-16 Cyvera Corporation Hybrid random bead/chip based microarray
US7923260B2 (en) * 2002-08-20 2011-04-12 Illumina, Inc. Method of reading encoded particles
US7092160B2 (en) * 2002-09-12 2006-08-15 Illumina, Inc. Method of manufacturing of diffraction grating-based optical identification element
US20100255603A9 (en) 2002-09-12 2010-10-07 Putnam Martin A Method and apparatus for aligning microbeads in order to interrogate the same
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
US20060057729A1 (en) * 2003-09-12 2006-03-16 Illumina, Inc. Diffraction grating-based encoded element having a substance disposed thereon
US7433123B2 (en) * 2004-02-19 2008-10-07 Illumina, Inc. Optical identification element having non-waveguide photosensitive substrate with diffraction grating therein
US7604173B2 (en) * 2004-11-16 2009-10-20 Illumina, Inc. Holographically encoded elements for microarray and other tagging labeling applications, and method and apparatus for making and reading the same
WO2006055736A1 (en) * 2004-11-16 2006-05-26 Illumina, Inc. And methods and apparatus for reading coded microbeads
WO2006055735A2 (en) 2004-11-16 2006-05-26 Illumina, Inc Scanner having spatial light modulator
US20060134324A1 (en) * 2004-11-17 2006-06-22 Illumina, Inc. Filament with easily removed protective coating and methods for stripping the same
US7193694B2 (en) * 2005-05-02 2007-03-20 William Underwood Method for grading gemstone cut and symmetry
EP1764610A1 (en) * 2005-09-14 2007-03-21 Overseas Diamonds Technologies N.V. Improvements in gemstone viewing methods and apparatus
US7623624B2 (en) * 2005-11-22 2009-11-24 Illumina, Inc. Method and apparatus for labeling using optical identification elements characterized by X-ray diffraction
US9262284B2 (en) * 2006-12-07 2016-02-16 Lenovo Enterprise Solutions (Singapore) Pte. Ltd. Single channel memory mirror
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
US8498847B2 (en) * 2009-05-29 2013-07-30 Pnina Gelman Cut grading gemstones, evaluation and representation of symmetry and proportion
GB2558247A (en) 2016-12-23 2018-07-11 De Beers Uk Ltd Gemstone sorting

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1799604A (en) * 1926-11-03 1931-04-07 Fayette F Read Method and apparatus for identifying crystals
DE1772105C2 (de) * 1968-03-30 1974-04-04 Eickhorst, Manfred, 2000 Hamburg Vorrichtung zur Bestimmung der photometrischen Transmission geschliffener Diamanten

Also Published As

Publication number Publication date
NL7212987A (xx) 1973-04-02
GB1403557A (en) 1975-08-28
JPS4842873A (xx) 1973-06-21
IT967939B (it) 1974-03-11
US3858979A (en) 1975-01-07
CH560895A5 (xx) 1975-04-15
DE2148582A1 (de) 1973-04-12
IL40443A0 (en) 1972-11-28
DE2148582C3 (de) 1974-02-21
FR2158828A5 (xx) 1973-06-15
IL40443A (en) 1976-03-31
BE789234A (fr) 1973-01-15
DE2148582B2 (de) 1973-08-02

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