ZA825372B - Method and apparatus for analysing gems - Google Patents
Method and apparatus for analysing gemsInfo
- Publication number
- ZA825372B ZA825372B ZA825372A ZA825372A ZA825372B ZA 825372 B ZA825372 B ZA 825372B ZA 825372 A ZA825372 A ZA 825372A ZA 825372 A ZA825372 A ZA 825372A ZA 825372 B ZA825372 B ZA 825372B
- Authority
- ZA
- South Africa
- Prior art keywords
- gems
- analysing
- analysing gems
- Prior art date
Links
- 239000010437 gem Substances 0.000 title 1
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
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/287,165 US4394580A (en) | 1981-07-27 | 1981-07-27 | Method and apparatus for analyzing gems |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA825372B true ZA825372B (en) | 1983-07-27 |
Family
ID=23101727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA825372A ZA825372B (en) | 1981-07-27 | 1982-07-27 | Method and apparatus for analysing gems |
Country Status (5)
Country | Link |
---|---|
US (1) | US4394580A (de) |
EP (1) | EP0071462A1 (de) |
IL (1) | IL66404A (de) |
WO (1) | WO1983000389A1 (de) |
ZA (1) | ZA825372B (de) |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8314340D0 (en) * | 1983-05-24 | 1983-06-29 | British Petroleum Co Plc | Separation technique |
GB2140555B (en) * | 1983-05-24 | 1987-03-25 | British Petroleum Co Plc | Diamond separation |
US4536655A (en) * | 1983-08-29 | 1985-08-20 | Axonics, Inc. | Fluorometer having an improved optical system |
GB8531330D0 (en) * | 1985-12-19 | 1986-01-29 | British Petroleum Co Plc | Differentiation process |
EP0277170B1 (de) * | 1986-08-20 | 1991-12-27 | De Beers Consolidated Mines Limited | Trennungsverfahren |
GB8700917D0 (en) * | 1987-01-16 | 1987-02-18 | British Petroleum Co Plc | Separation process |
GB2215041A (en) * | 1988-01-29 | 1989-09-13 | Argyle Diamond Sales | Sorting and/or confirming the identity of gems |
US5206699A (en) * | 1988-05-06 | 1993-04-27 | Gersan Establishment | Sensing a narrow frequency band of radiation and gemstones |
IL92133A (en) * | 1989-10-27 | 1993-01-31 | Uri Neta Haifa And Aharon Yifr | Method and apparatus for identifying gemstones, particularly diamonds |
US5835200A (en) * | 1990-04-24 | 1998-11-10 | Gersan Establishment | Method and apparatus for examining an object |
US5380493A (en) * | 1992-03-27 | 1995-01-10 | Chavez; Jeffery B. | Cell well plate holder and well marking system |
GB9210674D0 (en) * | 1992-05-19 | 1992-07-01 | Gersan Ets | Method and apparatus for examining an object |
JP3618345B2 (ja) * | 1993-03-05 | 2005-02-09 | ゲルザン エスタブリッシュメント | 天然ダイヤモンドの合成ダイヤモンドからの弁別 |
GB2286251B (en) * | 1994-01-25 | 1997-07-09 | Gersan Ets | Examining a diamond for synthetic diamond |
GB2307040B (en) * | 1994-09-02 | 1998-05-27 | Gersan Ets | Distinguishing natural from synthetic diamond |
GB9417665D0 (en) * | 1994-09-02 | 1994-10-19 | Gersan Ets | Distinguishing natural from synthetic diamond |
GB9418049D0 (en) * | 1994-09-07 | 1994-10-26 | Gersan Ets | Examining a diamond |
GB9418050D0 (en) * | 1994-09-07 | 1994-10-26 | Gersan Ets | Examining a diamond |
US5615005A (en) * | 1995-01-23 | 1997-03-25 | Ugts, Inc. | Gemstone evaluation system |
GB2317693B (en) * | 1995-07-24 | 1999-10-06 | Gersan Ets | Examining a diamond |
GB2303699A (en) * | 1995-07-24 | 1997-02-26 | Gersan Ets | A method and apparatus for detecting layers of synthetic diamond |
US5932119A (en) | 1996-01-05 | 1999-08-03 | Lazare Kaplan International, Inc. | Laser marking system |
US5835205A (en) * | 1996-02-12 | 1998-11-10 | C3, Inc. | Optical testing system for distinguishing a silicon carbide gemstone from a diamond |
US5811817A (en) * | 1996-04-25 | 1998-09-22 | Ravich; Gilbert Norman | Method & apparatus for detecting fracture filled diamonds |
WO1999031707A1 (en) * | 1997-12-16 | 1999-06-24 | Stephen Douglas Fuerstenau | Method and apparatus for detection of charge on ions and particles |
US6980283B1 (en) | 1997-12-18 | 2005-12-27 | Imagestatistics, Inc. | Method and associated apparatus for the standardized grading of gemstones |
US6020954A (en) * | 1997-12-18 | 2000-02-01 | Imagestatistics, Inc. | Method and associated apparatus for the standardized grading of gemstones |
US6043742A (en) * | 1998-04-29 | 2000-03-28 | Austin; James | Apparatus and process for detecting man-made gemstones |
US6304853B1 (en) | 1998-09-21 | 2001-10-16 | Peter J. Malnekoff | Automated gemstone evaluation system |
FR2796464B1 (fr) * | 1999-07-15 | 2001-09-21 | Mauboussin Successeur De Noury | Procede de determination de l'authenticite et de la provenance geographique de gemmes telles que les beryls |
US7362109B2 (en) * | 2004-10-18 | 2008-04-22 | Boris Zolotar Loginov | Gem tester using electrical photoconductivity |
US7800741B2 (en) * | 2005-08-22 | 2010-09-21 | Galatea Ltd. | Method for evaluation of a gemstone |
DE102005039679A1 (de) * | 2005-08-22 | 2007-03-08 | Galatea Ltd. | Verfahren zum Bestimmen des Wertes eines Objekts |
US20110205525A1 (en) * | 2010-02-25 | 2011-08-25 | Photoscribe, Inc. | Arrangement for and method of holding gemstones |
US9395350B2 (en) | 2010-06-21 | 2016-07-19 | Sy Kessler Sales, Inc. | Gem tester |
US8564316B2 (en) | 2010-06-21 | 2013-10-22 | Sy Kessler Sales, Inc. | Gem tester |
US20120268728A1 (en) * | 2011-04-20 | 2012-10-25 | GemEx Systems, Inc., a Wisconsin corporation | Gem positioning and analysis system |
CA2780788C (en) * | 2011-06-17 | 2015-03-17 | Rab Lighting, Inc. | Photocell controlled led driver circuit |
FR2988931B1 (fr) * | 2012-03-30 | 2015-10-16 | Schneider Toshiba Inverter | Dispositif de commande employe dans un systeme d'alimentation electrique a decoupage |
USD763658S1 (en) | 2012-09-26 | 2016-08-16 | Whirlpool Corporation | Colored medallion |
SG10201506282WA (en) | 2015-08-12 | 2017-03-30 | Jubilee Diamond Instr S Pte Ltd | Diamond Identification Apparatus |
WO2017208053A1 (en) | 2016-06-01 | 2017-12-07 | Jubilee Diamond Instrument (S) Pte.Ltd. | Precious stone testing device |
WO2018220572A1 (en) | 2017-06-01 | 2018-12-06 | Jubilee Diamond Instrument(S) Pte Ltd | Uv reflection tester |
CN108982552A (zh) * | 2017-06-01 | 2018-12-11 | 群创光电股份有限公司 | 光检测装置以及其操作方法 |
US10962511B2 (en) | 2017-12-12 | 2021-03-30 | Phoseon Technology, Inc. | Systems for a modular multi-wavelength absorbance detector |
CN112492886A (zh) | 2017-12-19 | 2021-03-12 | 钻禧仪器(新加坡)有限公司 | 宝石检测装置 |
US10837915B2 (en) | 2017-12-19 | 2020-11-17 | Jubilee Diamond Instrument (s) PTE. LTD | Gemstone testing apparatus |
GB2584876A (en) | 2019-06-19 | 2020-12-23 | Jubilee Diamond Instr S Pte Ltd | Gemstone testing apparatus |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3950102A (en) * | 1974-02-26 | 1976-04-13 | Manfred Eickhorst | Analysis lamp, particularly for the examination of precious stones |
DE7418353U (de) * | 1974-05-27 | 1974-10-17 | Eickhorst M | Vorrichtung zur spektroskopischen untersuchung von edelsteinen |
US3903422A (en) * | 1974-06-14 | 1975-09-02 | Gte Laboratories Inc | Digital fluorometer |
US4012141A (en) * | 1974-11-18 | 1977-03-15 | Walter William Hanneman | Identification of gemstones by relative reflectance measurements coupled with a scale calibrated in gem names |
US4125770A (en) * | 1975-01-03 | 1978-11-14 | Lang Andrew R | Diamond identification |
US4037961A (en) * | 1976-07-06 | 1977-07-26 | Baxter Travenol Laboratories, Inc. | System and apparatus for contour plotting the total luminescence spectrum of a sample |
US4117338A (en) * | 1977-05-24 | 1978-09-26 | Corning Glass Works | Automatic recording fluorometer/densitometer |
ZA795666B (en) * | 1978-11-06 | 1980-10-29 | Johnston R | Reflectometer |
US4291230A (en) * | 1979-03-07 | 1981-09-22 | Baxter Travenol Laboratories, Inc. | Fluorometric analyzer including shutter means for simultaneously shielding sample and photodetector during sample change |
-
1981
- 1981-07-27 US US06/287,165 patent/US4394580A/en not_active Expired - Fee Related
-
1982
- 1982-07-23 WO PCT/US1982/001000 patent/WO1983000389A1/en unknown
- 1982-07-27 IL IL66404A patent/IL66404A/xx unknown
- 1982-07-27 EP EP82303968A patent/EP0071462A1/de not_active Withdrawn
- 1982-07-27 ZA ZA825372A patent/ZA825372B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
IL66404A (en) | 1987-02-27 |
WO1983000389A1 (en) | 1983-02-03 |
US4394580A (en) | 1983-07-19 |
IL66404A0 (en) | 1982-11-30 |
EP0071462A1 (de) | 1983-02-09 |
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