[go: up one dir, main page]

GB2274165B - Method and apparatus for examining a diamond - Google Patents

Method and apparatus for examining a diamond

Info

Publication number
GB2274165B
GB2274165B GB9325532A GB9325532A GB2274165B GB 2274165 B GB2274165 B GB 2274165B GB 9325532 A GB9325532 A GB 9325532A GB 9325532 A GB9325532 A GB 9325532A GB 2274165 B GB2274165 B GB 2274165B
Authority
GB
United Kingdom
Prior art keywords
examining
diamond
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 - Fee Related
Application number
GB9325532A
Other versions
GB9325532D0 (en
GB2274165A (en
Inventor
Martin Phillip Smith
Robin Wyncliffe Smith
Christopher Mark Welbourn
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.)
Gersan Ets
Original Assignee
Gersan Ets
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 claimed from GB909009132A external-priority patent/GB9009132D0/en
Application filed by Gersan Ets filed Critical Gersan Ets
Priority to GB9325532A priority Critical patent/GB2274165B/en
Publication of GB9325532D0 publication Critical patent/GB9325532D0/en
Publication of GB2274165A publication Critical patent/GB2274165A/en
Application granted granted Critical
Publication of GB2274165B publication Critical patent/GB2274165B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65—Raman scattering
    • 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

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
GB9325532A 1990-04-24 1993-12-14 Method and apparatus for examining a diamond Expired - Fee Related GB2274165B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9325532A GB2274165B (en) 1990-04-24 1993-12-14 Method and apparatus for examining a diamond

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB909009132A GB9009132D0 (en) 1990-04-24 1990-04-24 Method and apparatus for examining an object
GB9108733A GB2244329B (en) 1990-04-24 1991-04-24 Method and apparatus for examining an object
GB9325532A GB2274165B (en) 1990-04-24 1993-12-14 Method and apparatus for examining a diamond

Publications (3)

Publication Number Publication Date
GB9325532D0 GB9325532D0 (en) 1994-02-16
GB2274165A GB2274165A (en) 1994-07-13
GB2274165B true GB2274165B (en) 1994-10-26

Family

ID=27265056

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9325532A Expired - Fee Related GB2274165B (en) 1990-04-24 1993-12-14 Method and apparatus for examining a diamond

Country Status (1)

Country Link
GB (1) GB2274165B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2516297A (en) 2013-07-18 2015-01-21 De Beers Centenary AG Measuring parameters of a cut gemstone
EP2840384B1 (en) * 2013-08-20 2020-06-17 SATT Gems AG Apparatus for the classification of colourless diamonds
CN116773453A (en) * 2023-07-05 2023-09-19 河海大学 Diamond screening method and device based on characteristic spectrum

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3064136A (en) * 1959-01-27 1962-11-13 Textron Electronics Inc Automatic sorting system
EP0064842A1 (en) * 1981-05-12 1982-11-17 Sphere Investments Limited Material sorting
GB2151018A (en) * 1983-12-06 1985-07-10 Gunsons Sortex Ltd Sorting machine and method
EP0346045A2 (en) * 1988-06-09 1989-12-13 Gerald Ray Richert Product discrimination system and method therefor
WO1990007108A1 (en) * 1988-12-22 1990-06-28 Renishaw Plc Raman analysis apparatus
GB2236848A (en) * 1989-10-03 1991-04-17 Japanese Research & Dev Ass Fo Sorting apparatus utilizing transmitted light
EP0425426A2 (en) * 1989-10-27 1991-05-02 Wellborn Ltd. Method for identifying gemstones, particularly diamonds
WO1991011703A1 (en) * 1990-02-02 1991-08-08 Thomas De La Rue And Company Limited Detection apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3064136A (en) * 1959-01-27 1962-11-13 Textron Electronics Inc Automatic sorting system
EP0064842A1 (en) * 1981-05-12 1982-11-17 Sphere Investments Limited Material sorting
GB2151018A (en) * 1983-12-06 1985-07-10 Gunsons Sortex Ltd Sorting machine and method
EP0346045A2 (en) * 1988-06-09 1989-12-13 Gerald Ray Richert Product discrimination system and method therefor
WO1990007108A1 (en) * 1988-12-22 1990-06-28 Renishaw Plc Raman analysis apparatus
GB2236848A (en) * 1989-10-03 1991-04-17 Japanese Research & Dev Ass Fo Sorting apparatus utilizing transmitted light
EP0425426A2 (en) * 1989-10-27 1991-05-02 Wellborn Ltd. Method for identifying gemstones, particularly diamonds
WO1991011703A1 (en) * 1990-02-02 1991-08-08 Thomas De La Rue And Company Limited Detection apparatus

Also Published As

Publication number Publication date
GB9325532D0 (en) 1994-02-16
GB2274165A (en) 1994-07-13

Similar Documents

Publication Publication Date Title
IL105749A (en) Method and apparatus for examining a diamond
GB2228026B (en) Apparatus and methods for cleaning a well
GB9014263D0 (en) Apparatus and method for spatially- and spectrally- resolvedmeasurements
EP0467043A3 (en) Free standing diamond sheet and method and apparatus for making same
EP0493962A3 (en) Method and apparatus for improving bit-images
EP0490641A3 (en) Electrophorographic apparatus and method
EP0457358A3 (en) Method and apparatus for spinning
EP0437277A3 (en) Figure drawing method and apparatus
IL112445A0 (en) Method and apparatus for examining a diamond
IL108477A0 (en) Method and apparatus examining a diamond
EP0494312A4 (en) Method and apparatus for making single crystal
ZA91856B (en) Method and apparatus for abrading
EP0463846A3 (en) Grinding method and apparatus
GB9011608D0 (en) Method and apparatus
GB2233882B (en) Cleaning apparatus and method
GB9217717D0 (en) Method and apparatus for cleaning fibres
EP0428391A3 (en) Method and apparatus for beautificating drawings
GB9009016D0 (en) Method and apparatus
GB2274165B (en) Method and apparatus for examining a diamond
GB9021539D0 (en) Method and apparatus
GB2273770B (en) Method and apparatus for examining a gemstone
GB2242698B (en) A method and apparatus for dredging
EP0408482A3 (en) Forms completion method and apparatus for forms completion
GB2249250B (en) Apparatus and method
GB9016288D0 (en) Method and apparatus

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040424