CA997940A - Apparatus for evaluating coloured gems, particularly cut diamonds - Google Patents
Apparatus for evaluating coloured gems, particularly cut diamondsInfo
- Publication number
- CA997940A CA997940A CA195,422A CA195422A CA997940A CA 997940 A CA997940 A CA 997940A CA 195422 A CA195422 A CA 195422A CA 997940 A CA997940 A CA 997940A
- Authority
- CA
- Canada
- Prior art keywords
- gems
- coloured
- evaluating
- cut diamonds
- particularly cut
- 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.)
- Expired
Links
- 239000010432 diamond Substances 0.000 title 1
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732313783 DE2313783C3 (de) | 1973-03-20 | Vorrichtung zur Feststellung der Bewertungsdaten von Farbedelsteinen, insbesondere Brillanten | |
DE19732344144 DE2344144C3 (de) | 1973-09-01 | Vorrichtung zur Feststellung der Bewertungsdaten von Farbedelsteinen, insbesondere Brillanten |
Publications (1)
Publication Number | Publication Date |
---|---|
CA997940A true CA997940A (en) | 1976-10-05 |
Family
ID=25764856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA195,422A Expired CA997940A (en) | 1973-03-20 | 1974-03-19 | Apparatus for evaluating coloured gems, particularly cut diamonds |
Country Status (7)
Country | Link |
---|---|
US (1) | US3867032A (ja) |
JP (1) | JPS5617617B2 (ja) |
AT (1) | AT344419B (ja) |
CA (1) | CA997940A (ja) |
CH (1) | CH568563A5 (ja) |
DK (1) | DK139399C (ja) |
FR (1) | FR2222651B1 (ja) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2444644A1 (de) * | 1974-09-18 | 1976-04-08 | Dihaco Diamanten Handels Co | Verfahren und vorrichtung zur ermittlung und groessenbestimmung von einschluessen in edelsteinen |
IT1085202B (it) * | 1976-02-05 | 1985-05-28 | Dihaco Diamanten Handels Co | Procedimento e dispositivo per la determinazione dei dati di stima di pietre preziose |
CH607020A5 (ja) * | 1976-05-20 | 1978-11-30 | Alusuisse | |
US4266871A (en) * | 1978-07-28 | 1981-05-12 | Gem Instruments Corporation | Apparatus for visually duplicating gemstones |
IL58344A (en) * | 1978-10-09 | 1983-09-30 | De Beers Cons Mines Ltd | Method of assessing the colour of gems |
US4291975A (en) * | 1979-10-03 | 1981-09-29 | Scientific Gem Identification, Inc. | Apparatus for determining the color characteristics of a gem |
ZA813689B (en) * | 1980-06-04 | 1982-07-28 | Gersan Ets | Centering and working gemstones |
EP0041391B1 (en) * | 1980-06-04 | 1985-10-02 | Gersan Establishment | Method and system for examining a gem stone |
EP0042361A1 (de) * | 1980-06-17 | 1981-12-23 | GRETAG Aktiengesellschaft | Verfahren und Vorrichtung zur maschinellen Identifikation von Edelsteinen |
JPS57156545A (en) * | 1981-03-22 | 1982-09-27 | Ii R C:Kk | Identifying method for jewelry by measurement of optical system and data processor for it |
JPS57158544A (en) * | 1981-03-25 | 1982-09-30 | Ii R C:Kk | Identifying method of jewel and ornament by measurement of quantity system and optical system, and its data processor |
JPS57169656A (en) * | 1981-04-12 | 1982-10-19 | Ii R C:Kk | Examining method for jewel |
JPS58728A (ja) * | 1981-06-25 | 1983-01-05 | Shimadzu Corp | ダイヤモンドカラ−測定装置 |
US5184732A (en) * | 1985-12-20 | 1993-02-09 | Gersan Establishment | Shape sorting |
GB8531396D0 (en) * | 1985-12-20 | 1986-02-05 | Gersan Ets | Sorting |
JPS6247073Y2 (ja) * | 1986-06-09 | 1987-12-24 | ||
IT1211348B (it) * | 1987-07-31 | 1989-10-18 | Roggero Paolo E Trossarelli Ca | Illuminatore per l osservazione spettroscopica di minerali gemme osimili |
JPH06103268B2 (ja) * | 1989-02-17 | 1994-12-14 | 金作 山下 | ダイヤモンド等の宝石の輝き観察器具および該器具を用いた宝石の撮影方法 |
FR2656118B1 (fr) * | 1989-12-19 | 1992-12-11 | Europ Propulsion | Dispositif d'observation pour corps exterieurement brillants de forme generale spherique ou courbe. |
JPH03231143A (ja) * | 1990-02-06 | 1991-10-15 | Kinsaku Yamashita | ダイヤモンドの輝き度判定方法及び測定装置 |
JPH06103269B2 (ja) * | 1990-07-06 | 1994-12-14 | 金作 山下 | ダイヤモンド等の宝石の観察または撮影方法および器具 |
GB9210674D0 (en) * | 1992-05-19 | 1992-07-01 | Gersan Ets | Method and apparatus for examining an object |
JPH05332731A (ja) * | 1992-05-29 | 1993-12-14 | Nikon Corp | 形状計測装置 |
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 |
US7105822B1 (en) * | 2000-09-29 | 2006-09-12 | American Gemological Laboratories, Inc. | Characterization of clarity and color enhancement agents in gems |
US7260544B1 (en) * | 2000-10-12 | 2007-08-21 | Gemological Institute Of America, Inc. | System and methods for evaluating the appearance of a gemstone |
FR2831031A1 (fr) * | 2001-10-23 | 2003-04-25 | Dji Design | Article de bijouterie illuminable comportant une pierre transparente a la lumiere, et procede d'illumination de celle-ci |
ES2219483T3 (es) * | 2001-12-13 | 2004-12-01 | Overseas Diamonds Technologies N.V. | Aparato para generar datos para determinar una propiedad de una piedra preciosa y procedimientos para determinar una propiedad de una piedra preciosa. |
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 |
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 |
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 |
US20090182520A1 (en) * | 2005-12-12 | 2009-07-16 | Yoav Luxembourg | Assessment of diamond color |
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 |
DE102009025561A1 (de) * | 2009-06-12 | 2010-12-16 | BAM Bundesanstalt für Materialforschung und -prüfung | Anordnung und Verfahren zur Bestimmung der Lumineszenzquantenausbeute einer lumineszierenden Probe |
WO2014055041A1 (en) * | 2012-10-03 | 2014-04-10 | Presidium Instruments Pte Ltd | A gemstone tester and a method of characterising a gemstone |
AT514332B1 (de) * | 2013-08-27 | 2014-12-15 | Swarovski D Kg | Anordnung zur Analyse eines durch Brechung und Reflexion an einem Schmuckstein hervorgerufenen Lichtmusters |
US10300546B2 (en) * | 2017-01-27 | 2019-05-28 | United Technologies Corporation | Spherical articulating fixture |
EP3729063B1 (en) * | 2017-12-21 | 2022-02-09 | Università Degli Studi Di Milano - Bicocca | System and method for spectroscopy analysis of diamonds |
US11333606B2 (en) * | 2020-08-18 | 2022-05-17 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Apparatus and method for visually inspecting gemstones |
IT202100021218A1 (it) * | 2021-08-05 | 2023-02-05 | Diamsafe S R L | Metodo e dispositivo per identificare univocamente una pietra preziosa sfaccettata |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5015597Y1 (ja) * | 1969-08-24 | 1975-05-15 | ||
JPS5423270B1 (ja) * | 1970-03-13 | 1979-08-13 |
-
1974
- 1974-02-21 AT AT143274A patent/AT344419B/de not_active IP Right Cessation
- 1974-03-06 CH CH317574A patent/CH568563A5/xx not_active IP Right Cessation
- 1974-03-08 US US449553A patent/US3867032A/en not_active Expired - Lifetime
- 1974-03-18 DK DK146374A patent/DK139399C/da active
- 1974-03-18 FR FR7409035A patent/FR2222651B1/fr not_active Expired
- 1974-03-19 CA CA195,422A patent/CA997940A/en not_active Expired
- 1974-03-20 JP JP3107574A patent/JPS5617617B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DK139399C (da) | 1979-07-23 |
US3867032A (en) | 1975-02-18 |
JPS49123384A (ja) | 1974-11-26 |
CH568563A5 (ja) | 1975-10-31 |
ATA143274A (de) | 1977-11-15 |
FR2222651A1 (ja) | 1974-10-18 |
JPS5617617B2 (ja) | 1981-04-23 |
FR2222651B1 (ja) | 1977-10-07 |
AT344419B (de) | 1978-07-25 |
DK139399B (da) | 1979-02-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA997940A (en) | Apparatus for evaluating coloured gems, particularly cut diamonds | |
AU6044373A (en) | Oilwell testing apparatus | |
CA1005340A (en) | Subsurface safety valve apparatus | |
CA983005A (en) | Chain block | |
CA1004449A (en) | Cutting tool | |
CA1003625A (en) | Apparatus for chopping strand | |
CA1011962A (en) | Well bore force-measuring apparatus | |
CA1010752A (en) | Sawing tool | |
CA994649A (en) | Sawmill apparatus | |
AU471101B2 (en) | Cutting process. and device for producing exactly dimensioned, narrow, andin particular parallel-flanked grooves | |
AU506423B2 (en) | Nitration, process | |
CA1004131A (en) | Tensioning tool | |
CA999782A (en) | Selective hand stamp | |
AU476479B2 (en) | Gems | |
CA985992A (en) | Sawing apparatus | |
CA1012745A (en) | Cutting tool | |
GB1449565A (en) | Apparatus for establishing the valuation data of gems parti cularly cut diamonds | |
CA1000170A (en) | Saw chain | |
CA958310A (en) | Apparatus for manufacturing diamonds | |
SU588122A1 (ru) | Установка дл резки глин ного бруса | |
AU497218B2 (en) | Oilwell testing | |
CA976080A (en) | Fabric cutting apparatus | |
CA968669A (en) | Cutting apparatus | |
CA1035360A (en) | Process for preparing alkyl-6,7-dialkoxy-2-methyl-4-oxotetrahydroquinoline-1-carboxylates | |
CA959250A (en) | Pipe cutting apparatus |