GB2081439B - Examining a gem stone - Google Patents

Examining a gem stone

Info

Publication number
GB2081439B
GB2081439B GB8117178A GB8117178A GB2081439B GB 2081439 B GB2081439 B GB 2081439B GB 8117178 A GB8117178 A GB 8117178A GB 8117178 A GB8117178 A GB 8117178A GB 2081439 B GB2081439 B GB 2081439B
Authority
GB
United Kingdom
Prior art keywords
examining
gem stone
gem
stone
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
Application number
GB8117178A
Other versions
GB2081439A (en
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
Application filed by Gersan Ets filed Critical Gersan Ets
Priority to GB8117178A priority Critical patent/GB2081439B/en
Publication of GB2081439A publication Critical patent/GB2081439A/en
Application granted granted Critical
Publication of GB2081439B publication Critical patent/GB2081439B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/16—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of diamonds; of jewels or the like; Diamond grinders' dops; Dop holders or tongs
    • B24B9/162—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of diamonds; of jewels or the like; Diamond grinders' dops; Dop holders or tongs by bruting, i.e. rubbing two precious stones against each other
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/022—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/024—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of diode-array scanning
    • 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

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Adornments (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
GB8117178A 1980-06-04 1981-06-04 Examining a gem stone Expired GB2081439B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8117178A GB2081439B (en) 1980-06-04 1981-06-04 Examining a gem stone

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8018349 1980-06-04
GB8117178A GB2081439B (en) 1980-06-04 1981-06-04 Examining a gem stone

Publications (2)

Publication Number Publication Date
GB2081439A GB2081439A (en) 1982-02-17
GB2081439B true GB2081439B (en) 1984-08-08

Family

ID=26275734

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8117178A Expired GB2081439B (en) 1980-06-04 1981-06-04 Examining a gem stone

Country Status (1)

Country Link
GB (1) GB2081439B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5206699A (en) 1988-05-06 1993-04-27 Gersan Establishment Sensing a narrow frequency band of radiation and gemstones

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN165987B (en) * 1985-09-30 1990-02-17 Cra Services
US5184732A (en) * 1985-12-20 1993-02-09 Gersan Establishment Shape sorting
GB8531396D0 (en) * 1985-12-20 1986-02-05 Gersan Ets Sorting
GB8826224D0 (en) * 1988-11-09 1988-12-14 Gersan Anstalt Sensing shape of object
JPH074934A (en) * 1993-02-12 1995-01-10 General Electric Co <Ge> Classification and sorting of crystalline material body
CA2162532C (en) * 1995-11-09 2001-01-30 Dana J. Vanier Gemstone registration system
IL126809A (en) * 1998-10-29 2001-08-26 Sarin Technologies Ltd Apparatus and method of examining the shape of gemstones
ATE338946T1 (en) * 2000-12-04 2006-09-15 Diamcad METHOD AND DEVICE FOR LOCATING INCLUSIONS IN A DIAMOND STONE
RU2314197C2 (en) 2002-02-13 2008-01-10 Арвиндбхай Лавджибхай ПАТЕЛ Laser machine for analysis, grading and marking-out of untreated diamond
AU2003902855A0 (en) 2003-06-06 2003-06-26 Holloway, Garry Ian Method and apparatus for examining a diamond
WO2009068354A1 (en) 2007-11-27 2009-06-04 Ideal-Scope Pty. Ltd. Method and system for improved optical modeling of gemstones
GB2490330A (en) 2011-04-26 2012-10-31 De Beers Centenary AG Automatic gemstone orientation apparatus
WO2015183947A1 (en) 2014-05-27 2015-12-03 Gemological Appraisal Association, Inc. Gemstone registration and recovery system, and systems for evaluating the light performance of a gemstone and capturing forensic characteristics of a gemstone
CN109444143A (en) * 2018-11-14 2019-03-08 襄阳爱默思智能检测装备有限公司 A kind of novel jewel imaging and feature recording method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5206699A (en) 1988-05-06 1993-04-27 Gersan Establishment Sensing a narrow frequency band of radiation and gemstones

Also Published As

Publication number Publication date
GB2081439A (en) 1982-02-17

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20010603