DE3890033T1 - - Google Patents

Info

Publication number
DE3890033T1
DE3890033T1 DE19883890033 DE3890033T DE3890033T1 DE 3890033 T1 DE3890033 T1 DE 3890033T1 DE 19883890033 DE19883890033 DE 19883890033 DE 3890033 T DE3890033 T DE 3890033T DE 3890033 T1 DE3890033 T1 DE 3890033T1
Authority
DE
Germany
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.)
Withdrawn
Application number
DE19883890033
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
Priority to GB878700917A priority Critical patent/GB8700917D0/en
Application filed filed Critical
Publication of DE3890033T1 publication Critical patent/DE3890033T1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/87Investigating jewels
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65Raman scattering
DE19883890033 1987-01-16 1988-01-14 Withdrawn DE3890033T1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB878700917A GB8700917D0 (en) 1987-01-16 1987-01-16 Separation process

Publications (1)

Publication Number Publication Date
DE3890033T1 true DE3890033T1 (de) 1988-12-08

Family

ID=10610753

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883890033 Withdrawn DE3890033T1 (de) 1987-01-16 1988-01-14

Country Status (12)

Country Link
US (1) US4907875A (de)
EP (1) EP0298103A1 (de)
JP (1) JPH01502450A (de)
KR (1) KR890700821A (de)
AU (1) AU590146B2 (de)
BR (1) BR8804825A (de)
DE (1) DE3890033T1 (de)
GB (1) GB8700917D0 (de)
NL (1) NL8820010A (de)
SU (1) SU1709929A3 (de)
WO (1) WO1988005534A1 (de)
ZA (1) ZA8709739B (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3790473C2 (de) * 1986-08-20 1995-04-27 De Beers Cons Mines Ltd Trennverfahren für Diamanten
US5206699A (en) * 1988-05-06 1993-04-27 Gersan Establishment Sensing a narrow frequency band of radiation and gemstones
US5835200A (en) * 1990-04-24 1998-11-10 Gersan Establishment Method and apparatus for examining an object
GB9103552D0 (en) * 1991-02-20 1991-04-10 Gersan Ets Classifying or sorting
US5373358A (en) * 1991-08-23 1994-12-13 Fuji Xerox Co., Ltd. Excitation wavelength sweeping type raman spectroscopic apparatus
CH692841A5 (de) * 1993-12-14 2002-11-29 Buehler Ag Sortiervorrichtung.
CA2139537C (en) * 1994-01-07 2007-04-24 Ulf Anders Staffan Tapper Method and apparatus for the classification of matter
GB9417665D0 (en) * 1994-09-02 1994-10-19 Gersan Ets Distinguishing natural from synthetic diamond
US5835205A (en) * 1996-02-12 1998-11-10 C3, Inc. Optical testing system for distinguishing a silicon carbide gemstone from a diamond
US5966673A (en) 1997-01-10 1999-10-12 Diamond Technologies, Inc. System and method for computerized evaluation of gemstones
US6020954A (en) * 1997-12-18 2000-02-01 Imagestatistics, Inc. Method and associated apparatus for the standardized grading of gemstones
US6980283B1 (en) 1997-12-18 2005-12-27 Imagestatistics, Inc. Method and associated apparatus for the standardized grading 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
GB2379733A (en) * 2001-09-12 2003-03-19 Gersan Ets Examining a diamond
FI115072B (fi) * 2002-03-28 2005-02-28 Valtion Teknillinen Menetelmä ja spektrometri Raman-spektrin mittaamiseksi
JP2005233928A (ja) * 2004-01-23 2005-09-02 Horiba Ltd 基板検査装置
US7193694B2 (en) * 2005-05-02 2007-03-20 William Underwood Method for grading gemstone cut and symmetry
WO2008020345A1 (en) * 2006-08-18 2008-02-21 Primus Special Projects (Pty) Ltd An illuminating module for a sorter
US9262284B2 (en) * 2006-12-07 2016-02-16 Lenovo Enterprise Solutions (Singapore) Pte. Ltd. Single channel memory mirror
RU2611232C2 (ru) * 2011-07-27 2017-02-21 Александер ПОТЕМКИН Способ нанесения маркировки на поверхность алмаза или бриллианта для определения его подлинности
SG2014012348A (en) * 2012-10-03 2014-08-28 Presidium Instr Pte Ltd A gemstone tester and a method of characterising a gemstone
GB2516297A (en) * 2013-07-18 2015-01-21 De Beers Centenary AG Measuring parameters of a cut gemstone
CN106662535B (zh) * 2014-08-08 2019-09-27 英派尔科技开发有限公司 确定宝石的光学属性的设备、系统和方法

Family Cites Families (22)

* 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
GB1416568A (en) * 1972-10-20 1975-12-03 Wilson S S Method of and apparatus for evaluating registering and identifying gemstones
FR2253410A5 (de) * 1973-12-03 1975-06-27 Inst Nat Sante Rech Med
GB2010474A (en) * 1977-10-19 1979-06-27 Horchler S Gem colour meter
US4280625A (en) * 1978-04-03 1981-07-28 Grobbelaar Jacobus H Shade determination
GB2036360B (en) * 1978-10-09 1982-10-13 De Beers Cons Mines Ltd Assessment of colour in diamonds and other gems
DE2915801A1 (de) * 1979-04-19 1980-10-23 Ulrich Aldinger Vorrichtung zur identifizierung von geschliffenen edelsteinen
GB2056058B (en) * 1979-07-18 1983-10-12 Gersan Ets Assessing the colour of gemstones and the like
DE2935812A1 (de) * 1979-09-05 1981-03-12 Zeiss Carl Fa Verfahren zur werkstoffpruefung
US4291975A (en) * 1979-10-03 1981-09-29 Scientific Gem Identification, Inc. Apparatus for determining the color characteristics of a gem
US4259011A (en) * 1979-11-05 1981-03-31 Crumm John C Optical gem analyzer
ZA8103263B (en) * 1980-06-04 1982-06-30 De Beers Cons Mines Ltd The assessment of colour in diamonds and other gems
FR2496888A1 (fr) * 1980-12-22 1982-06-25 Gemological Lab Antwerp Ensemble de metrologie gemmologique pour la gradation automatique d'une gemme, en particulier le diamant et autres pierres precieuses
EP0064842A1 (de) * 1981-05-12 1982-11-17 Sphere Investments Limited Materialsortierung
JPS58728A (en) * 1981-06-25 1983-01-05 Shimadzu Corp Diamond color measuring device
US4394580A (en) * 1981-07-27 1983-07-19 L.C.E. Ltd. Method and apparatus for analyzing gems
JPS5892920A (en) * 1981-11-30 1983-06-02 Karuniyuu Kogaku Kogyo Kk Measuring device for diamond color
US4527895A (en) * 1983-01-25 1985-07-09 Gemdialogue Systems, Inc. Method of characterizing the colored appearance of a gemstone
GB2140555B (en) * 1983-05-24 1987-03-25 British Petroleum Co Plc Diamond separation
GB8514992D0 (en) * 1985-06-13 1985-07-17 British Nuclear Fuels Plc Differentiation technique
DE3600115A1 (de) * 1986-01-04 1987-07-09 Konrad Dr Hoffmann Verfahren zur verstaerkten wiedergabe des gelbstiches von diamanten
AU5629986A (en) * 1986-03-24 1987-10-20 University Of Queensland, The Monitoring the presence of materials

Also Published As

Publication number Publication date
SU1709929A3 (ru) 1992-01-30
KR890700821A (ko) 1989-04-27
GB8700917D0 (en) 1987-02-18
DE3890033T0 (de)
JPH01502450A (de) 1989-08-24
AU590146B2 (en) 1989-10-26
NL8820010A (nl) 1988-12-01
ZA8709739B (en) 1989-08-30
US4907875A (en) 1990-03-13
AU1153588A (en) 1988-08-10
WO1988005534A1 (en) 1988-07-28
BR8804825A (pt) 1989-10-31
EP0298103A1 (de) 1989-01-11

Similar Documents

Publication Publication Date Title
BG45028A1 (de)
AU6265186A (de)
DE8700575U1 (de)
DE8700179U1 (de)
AU7945287A (de)
DE8700137U1 (de)
DE8700596U1 (de)
BG44756A1 (de)
BG44991A1 (de)
BG44820A1 (de)
BG44659A1 (de)
BG45481A1 (de)
DE8700373U1 (de)
BG44783A1 (de)
DE3782942D1 (de)
BG44621A1 (de)
BG44729A1 (de)
BG44846A1 (de)
DE8700743U1 (de)
DE8700040U1 (de)
BG44576A1 (de)
DE3882459D1 (de)
DE8700532U1 (de)
DE3872441D1 (de)
DE8700361U1 (de)

Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee