BE875283A - Procede et appareil de determination de la nuance de coloration d'une particule - Google Patents

Procede et appareil de determination de la nuance de coloration d'une particule

Info

Publication number
BE875283A
BE875283A BE2/57702A BE2057702A BE875283A BE 875283 A BE875283 A BE 875283A BE 2/57702 A BE2/57702 A BE 2/57702A BE 2057702 A BE2057702 A BE 2057702A BE 875283 A BE875283 A BE 875283A
Authority
BE
Belgium
Prior art keywords
coloration
hue
particle
determining
Prior art date
Application number
BE2/57702A
Other languages
English (en)
Original Assignee
De Beers Cons 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 Cons Mines Ltd filed Critical De Beers Cons Mines Ltd
Publication of BE875283A publication Critical patent/BE875283A/fr

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)
BE2/57702A 1978-04-03 1979-04-03 Procede et appareil de determination de la nuance de coloration d'une particule BE875283A (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE875283A true BE875283A (fr) 1979-07-31

Family

ID=25572769

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/57702A BE875283A (fr) 1978-04-03 1979-04-03 Procede et appareil de determination de la nuance de coloration d'une particule

Country Status (3)

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

Families Citing this family (1)

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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA765149B (en) * 1976-08-27 1978-04-26 De Beers Ind Diamond Measurement of optical properties

Also Published As

Publication number Publication date
JPS5510588A (en) 1980-01-25
JPS6334422B2 (fr) 1988-07-11
ZA781879B (en) 1979-11-28

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: DE BEERS CONSOLIDATED MINES LTD

Effective date: 19960430