JPS5598341A - Method of estimating color of jewel - Google Patents

Method of estimating color of jewel

Info

Publication number
JPS5598341A
JPS5598341A JP12957079A JP12957079A JPS5598341A JP S5598341 A JPS5598341 A JP S5598341A JP 12957079 A JP12957079 A JP 12957079A JP 12957079 A JP12957079 A JP 12957079A JP S5598341 A JPS5598341 A JP S5598341A
Authority
JP
Japan
Prior art keywords
jewel
estimating color
estimating
color
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.)
Pending
Application number
JP12957079A
Other languages
Japanese (ja)
Inventor
Suchiwaato Utsuzu Jiofurei
Maaku Ueruboon Kurisutofuaa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
De Beers Consolidated Mines Ltd
Original Assignee
De Beers Consolidated Mines Ltd
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 De Beers Consolidated Mines Ltd filed Critical De Beers Consolidated Mines Ltd
Publication of JPS5598341A publication Critical patent/JPS5598341A/en
Pending legal-status Critical Current

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
JP12957079A 1978-10-09 1979-10-09 Method of estimating color of jewel Pending JPS5598341A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7839847 1978-10-09

Publications (1)

Publication Number Publication Date
JPS5598341A true JPS5598341A (en) 1980-07-26

Family

ID=10500211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12957079A Pending JPS5598341A (en) 1978-10-09 1979-10-09 Method of estimating color of jewel

Country Status (9)

Country Link
JP (1) JPS5598341A (en)
AU (1) AU527834B2 (en)
BE (1) BE879290A (en)
CH (1) CH644452A5 (en)
DE (1) DE2940625A1 (en)
FR (1) FR2438837A1 (en)
IL (1) IL58344A (en)
NL (1) NL189426C (en)
ZA (1) ZA795228B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58728A (en) * 1981-06-25 1983-01-05 Shimadzu Corp Diamond color measuring device
JPS5830644A (en) * 1981-08-14 1983-02-23 Ii R C:Kk Method for deciding optical axis
CN111788474A (en) * 2017-12-29 2020-10-16 金展科技有限公司 Diamond cleanliness measurement method and system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA813263B (en) * 1980-06-04 1982-06-30 De Beers Cons Mines Ltd The assessment of colour in diamonds and other gems
JPH0711488B2 (en) * 1992-12-18 1995-02-08 株式会社泰光 A jewel magnifying device with a cut surface
FR2768513B1 (en) * 1997-09-15 1999-12-03 Jean Pierre Delgrande COMPARATIVE COLORIMETRIC ANALYSIS METHOD AND CORRESPONDING DEVICE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4842873A (en) * 1971-09-29 1973-06-21
JPS5329180A (en) * 1976-08-27 1978-03-18 De Beers Ind Diamond Method of and apparatus for measuring optical characteristics
JPS5378855A (en) * 1976-12-21 1978-07-12 Nec Corp Polygonal jewery identifying device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992588A (en) * 1958-02-03 1961-07-18 Beckman Instruments Inc Photometer reflectance unit
DE1772105C2 (en) * 1968-03-30 1974-04-04 Eickhorst, Manfred, 2000 Hamburg Device for determining the photometric transmission of cut diamonds
AT344419B (en) * 1973-03-20 1978-07-25 Dihaco Diamanten Handels Co DEVICE FOR DETERMINING THE EVALUATION DATA OF COLORED GEMS, IN PARTICULAR DIAMONDS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4842873A (en) * 1971-09-29 1973-06-21
JPS5329180A (en) * 1976-08-27 1978-03-18 De Beers Ind Diamond Method of and apparatus for measuring optical characteristics
JPS5378855A (en) * 1976-12-21 1978-07-12 Nec Corp Polygonal jewery identifying device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58728A (en) * 1981-06-25 1983-01-05 Shimadzu Corp Diamond color measuring device
JPS5830644A (en) * 1981-08-14 1983-02-23 Ii R C:Kk Method for deciding optical axis
CN111788474A (en) * 2017-12-29 2020-10-16 金展科技有限公司 Diamond cleanliness measurement method and system

Also Published As

Publication number Publication date
AU527834B2 (en) 1983-03-24
FR2438837B1 (en) 1983-02-25
NL7907348A (en) 1980-04-11
IL58344A (en) 1983-09-30
NL189426C (en) 1993-04-01
NL189426B (en) 1992-11-02
FR2438837A1 (en) 1980-05-09
AU5150579A (en) 1980-04-17
CH644452A5 (en) 1984-07-31
BE879290A (en) 1980-04-09
DE2940625A1 (en) 1980-06-04
ZA795228B (en) 1980-09-24

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