SG10201506282WA - Diamond Identification Apparatus - Google Patents

Diamond Identification Apparatus

Info

Publication number
SG10201506282WA
SG10201506282WA SG10201506282WA SG10201506282WA SG10201506282WA SG 10201506282W A SG10201506282W A SG 10201506282WA SG 10201506282W A SG10201506282W A SG 10201506282WA SG 10201506282W A SG10201506282W A SG 10201506282WA SG 10201506282W A SG10201506282W A SG 10201506282WA
Authority
SG
Singapore
Prior art keywords
identification apparatus
diamond identification
diamond
identification
Prior art date
Application number
SG10201506282WA
Inventor
Kui Lim Tam
Original Assignee
Jubilee Diamond Instr S Pte 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 Jubilee Diamond Instr S Pte Ltd filed Critical Jubilee Diamond Instr S Pte Ltd
Priority to SG10201506282WA priority Critical patent/SG10201506282WA/en
Priority to PCT/IB2016/054071 priority patent/WO2017025825A1/en
Priority to US15/751,529 priority patent/US10161878B2/en
Publication of SG10201506282WA publication Critical patent/SG10201506282WA/en
Priority to US16/176,059 priority patent/US10247677B2/en

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
    • G01J2001/1657—Arrangements with two photodetectors, the signals of which are compared one signal being spectrally modified, e.g. for UV

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
SG10201506282WA 2015-08-12 2015-08-12 Diamond Identification Apparatus SG10201506282WA (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SG10201506282WA SG10201506282WA (en) 2015-08-12 2015-08-12 Diamond Identification Apparatus
PCT/IB2016/054071 WO2017025825A1 (en) 2015-08-12 2016-07-07 Diamond identification apparatus
US15/751,529 US10161878B2 (en) 2015-08-12 2016-07-07 Diamond identification apparatus
US16/176,059 US10247677B2 (en) 2015-08-12 2018-10-31 Diamond identification apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SG10201506282WA SG10201506282WA (en) 2015-08-12 2015-08-12 Diamond Identification Apparatus

Publications (1)

Publication Number Publication Date
SG10201506282WA true SG10201506282WA (en) 2017-03-30

Family

ID=57983400

Family Applications (1)

Application Number Title Priority Date Filing Date
SG10201506282WA SG10201506282WA (en) 2015-08-12 2015-08-12 Diamond Identification Apparatus

Country Status (3)

Country Link
US (2) US10161878B2 (en)
SG (1) SG10201506282WA (en)
WO (1) WO2017025825A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US10837915B2 (en) 2017-12-19 2020-11-17 Jubilee Diamond Instrument (s) PTE. LTD Gemstone testing apparatus
US20200371041A1 (en) 2017-12-19 2020-11-26 Jubilee Diamond Instrument (S) Pte. Ltd. Gemstone testing apparatus
WO2019123383A1 (en) * 2017-12-21 2019-06-27 Università Degli Studi Di Milano - Bicocca System and method for spectroscopy analysis of diamonds
GB2584876A (en) 2019-06-19 2020-12-23 Jubilee Diamond Instr S Pte Ltd Gemstone testing apparatus

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789430A (en) 1954-06-25 1957-04-23 Allied Control Co Contact pressure measuring apparatus
US4364677A (en) 1978-04-10 1982-12-21 Ceres Electronics Corporation Method and means of rapidly distnguishing a simulated diamond from natural diamond
US4255962A (en) 1978-04-10 1981-03-17 Ceres Corporation Method and means of rapidly distinguishing a simulated diamond from natural diamond
US4344315A (en) 1978-12-29 1982-08-17 Ceres Electronics Corporation Method and device for distinguishing material by thermal conductivity
JPS56500100A (en) 1978-12-29 1981-02-05
US4488821A (en) 1981-03-03 1984-12-18 Ceres Electronics Corporation Method and means of rapidly distinguishing a simulated diamond from natural diamond
US4394580A (en) 1981-07-27 1983-07-19 L.C.E. Ltd. Method and apparatus for analyzing gems
EP0687356B1 (en) 1993-03-05 1998-05-13 Gersan Establishment Distinguishing natural from synthetic diamond
GB9417665D0 (en) 1994-09-02 1994-10-19 Gersan Ets Distinguishing natural from synthetic diamond
US6331708B2 (en) * 1995-07-24 2001-12-18 Gersan Establishment Examining a diamond
US5835205A (en) 1996-02-12 1998-11-10 C3, Inc. Optical testing system for distinguishing a silicon carbide gemstone from a diamond
US5955735A (en) 1997-09-29 1999-09-21 C3, Inc. Apparatus and method for positively identifying synthetic silicon carbide gemstones
US6265884B1 (en) 1998-05-13 2001-07-24 Ceres Corporation Electrical conductivity gem tester
US6439766B1 (en) 2001-02-06 2002-08-27 Oris L. Nelson Diamond detecting apparatus and method
US6624385B2 (en) 2001-12-21 2003-09-23 Eastman Kodak Company Method for marking gemstones with a unique micro discrete indicia
BE1015022A3 (en) 2002-07-05 2004-08-03 Wetenschappelijk En Tech Onder Method and device for distinguished from stones.
AU2003902855A0 (en) 2003-06-06 2003-06-26 Holloway, Garry Ian Method and apparatus for examining a diamond
US7420657B2 (en) 2003-12-22 2008-09-02 American Gem Society Methods, apparatus, and systems for evaluating gemstones
EP1776059A2 (en) 2004-07-02 2007-04-25 Discus Dental Impressions Inc. Curing light having a reflector
US7362109B2 (en) 2004-10-18 2008-04-22 Boris Zolotar Loginov Gem tester using electrical photoconductivity
BE1016537A3 (en) 2004-11-10 2007-01-09 Wetenschappelijk En Tech Onder METHOD FOR DISTINCTING COLORLESS AND ALMOST COLORLESS DIAMONDS AND ARRANGEMENT FOR CARRYING OUT THIS METHOD.
GB0919235D0 (en) 2009-11-03 2009-12-16 De Beers Centenary AG Inclusion detection in polished gemstones
US8564316B2 (en) 2010-06-21 2013-10-22 Sy Kessler Sales, Inc. Gem tester
US9395350B2 (en) 2010-06-21 2016-07-19 Sy Kessler Sales, Inc. Gem tester
CN201765202U (en) 2010-07-09 2011-03-16 朱秀玲 Multifunctional gem testing instrument
US8278906B2 (en) 2010-07-16 2012-10-02 Tri Electronics Inc. Apparatus for simulating thermal conductivity and electrical resistance of diamonds and their substitutes
US9453808B2 (en) 2011-02-16 2016-09-27 Shenzhen DiKai Industrial Co., Ltd. Multi-functional precious stone testing apparatus and method thereof
GB2500259A (en) 2012-03-16 2013-09-18 De Beers Centenary AG Gemstone inspection
US9568434B2 (en) 2012-10-03 2017-02-14 Presidium Instruments Pte Ltd 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
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

Also Published As

Publication number Publication date
US20190072495A1 (en) 2019-03-07
US10161878B2 (en) 2018-12-25
US20180238811A1 (en) 2018-08-23
US10247677B2 (en) 2019-04-02
WO2017025825A1 (en) 2017-02-16

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