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AU558675B2 - Examining a gemstone - Google Patents
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AU558675B2 - Examining a gemstone - Google Patents

Examining a gemstone

Info

Publication number
AU558675B2
AU558675B2 AU79881/82A AU7988182A AU558675B2 AU 558675 B2 AU558675 B2 AU 558675B2 AU 79881/82 A AU79881/82 A AU 79881/82A AU 7988182 A AU7988182 A AU 7988182A AU 558675 B2 AU558675 B2 AU 558675B2
Authority
AU
Australia
Prior art keywords
gemstone
examining
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
AU79881/82A
Other versions
AU7988182A (en
Inventor
John Sidney Dodson
John Charles Lawrence
Andrew David Garry Stewart
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
Publication of AU7988182A publication Critical patent/AU7988182A/en
Application granted granted Critical
Publication of AU558675B2 publication Critical patent/AU558675B2/en
Anticipated expiration legal-status Critical
Expired 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material 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)
AU79881/82A 1981-04-06 1982-01-27 Examining a gemstone Expired AU558675B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8110751 1981-04-06
GB8110751 1981-04-06

Publications (2)

Publication Number Publication Date
AU7988182A AU7988182A (en) 1982-10-14
AU558675B2 true AU558675B2 (en) 1987-02-05

Family

ID=10520976

Family Applications (2)

Application Number Title Priority Date Filing Date
AU79881/82A Expired AU558675B2 (en) 1981-04-06 1982-01-27 Examining a gemstone
AU79880/82A Expired AU554120B2 (en) 1981-04-06 1982-01-27 Centering and working gemstones

Family Applications After (1)

Application Number Title Priority Date Filing Date
AU79880/82A Expired AU554120B2 (en) 1981-04-06 1982-01-27 Centering and working gemstones

Country Status (3)

Country Link
AU (2) AU558675B2 (en)
BE (1) BE892777A (en)
IL (1) IL65420A0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06103268B2 (en) * 1989-02-17 1994-12-14 金作 山下 Instrument for observing brilliance of jewels such as diamond and method for photographing jewels using the instrument
GB2490330A (en) 2011-04-26 2012-10-31 De Beers Centenary AG Automatic gemstone orientation apparatus

Also Published As

Publication number Publication date
AU554120B2 (en) 1986-08-07
AU7988082A (en) 1982-10-14
AU7988182A (en) 1982-10-14
BE892777A (en) 1982-08-02
IL65420A0 (en) 1982-07-30

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired