JPS5510588A - Method and device for measuring jewel clarity and brightness - Google Patents

Method and device for measuring jewel clarity and brightness

Info

Publication number
JPS5510588A
JPS5510588A JP3970879A JP3970879A JPS5510588A JP S5510588 A JPS5510588 A JP S5510588A JP 3970879 A JP3970879 A JP 3970879A JP 3970879 A JP3970879 A JP 3970879A JP S5510588 A JPS5510588 A JP S5510588A
Authority
JP
Japan
Prior art keywords
jewel
brightness
clarity
measuring
measuring jewel
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.)
Granted
Application number
JP3970879A
Other languages
Japanese (ja)
Other versions
JPS6334422B2 (en
Inventor
Haamanusu Guroberaa Yakobusu
Nebiru Koruson Richiyaado
Mooresu Rebitsuto Chiyaarii
Chiyataarii Samueru
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 JPS5510588A publication Critical patent/JPS5510588A/en
Publication of JPS6334422B2 publication Critical patent/JPS6334422B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
    • 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
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0251—Colorimeters making use of an integrating sphere
    • 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
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • 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

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
JP3970879A 1978-04-03 1979-04-02 Method and device for measuring jewel clarity and brightness Granted JPS5510588A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA00781879A ZA781879B (en) 1978-04-03 1978-04-03 Selector apparatus

Publications (2)

Publication Number Publication Date
JPS5510588A true JPS5510588A (en) 1980-01-25
JPS6334422B2 JPS6334422B2 (en) 1988-07-11

Family

ID=25572769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3970879A Granted JPS5510588A (en) 1978-04-03 1979-04-02 Method and device for measuring jewel clarity and brightness

Country Status (3)

Country Link
JP (1) JPS5510588A (en)
BE (1) BE875283A (en)
ZA (1) ZA781879B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06315506A (en) * 1993-05-10 1994-11-15 Yasuhei Suko Wheelchair

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5329180A (en) * 1976-08-27 1978-03-18 De Beers Ind Diamond Method of and apparatus for measuring optical characteristics

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5329180A (en) * 1976-08-27 1978-03-18 De Beers Ind Diamond Method of and apparatus for measuring optical characteristics

Also Published As

Publication number Publication date
JPS6334422B2 (en) 1988-07-11
ZA781879B (en) 1979-11-28
BE875283A (en) 1979-07-31

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