ZA913690B - Arrangement for measuring the absorption of transparent specimens having an unfavorable outer form - Google Patents

Arrangement for measuring the absorption of transparent specimens having an unfavorable outer form

Info

Publication number
ZA913690B
ZA913690B ZA913690A ZA913690A ZA913690B ZA 913690 B ZA913690 B ZA 913690B ZA 913690 A ZA913690 A ZA 913690A ZA 913690 A ZA913690 A ZA 913690A ZA 913690 B ZA913690 B ZA 913690B
Authority
ZA
South Africa
Prior art keywords
absorption
measuring
arrangement
outer form
transparent specimens
Prior art date
Application number
ZA913690A
Other languages
English (en)
Inventor
Gerhard Hohberg
Hohberg Gerhard
Axel Matthes
Matthes Axel
Harry Schlemmer
Schlemmer Harry
Original Assignee
Zeiss Carl
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 Zeiss Carl filed Critical Zeiss Carl
Publication of ZA913690B publication Critical patent/ZA913690B/xx

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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • 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
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/061—Sources
    • G01N2201/06126—Large diffuse sources
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/065—Integrating spheres

Landscapes

  • 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)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
ZA913690A 1990-05-23 1991-05-15 Arrangement for measuring the absorption of transparent specimens having an unfavorable outer form ZA913690B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9005845U DE9005845U1 (de) 1990-05-23 1990-05-23 Vorrichtung zur Messung der Absorption von transparenten Proben mit ungünstiger Außenform

Publications (1)

Publication Number Publication Date
ZA913690B true ZA913690B (en) 1992-02-26

Family

ID=6854048

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA913690A ZA913690B (en) 1990-05-23 1991-05-15 Arrangement for measuring the absorption of transparent specimens having an unfavorable outer form

Country Status (4)

Country Link
US (1) US5164586A (xx)
EP (1) EP0458223A3 (xx)
DE (1) DE9005845U1 (xx)
ZA (1) ZA913690B (xx)

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DE4030836A1 (de) * 1990-09-28 1992-04-02 Kim Yoon Ok Vorrichtung zur qualitativen und/oder quantitativen bestimmung der zusammensetzung einer zu analysierenden probe
US5256886A (en) * 1991-04-30 1993-10-26 E. I. Du Pont De Nemours And Company Apparatus for optically detecting contamination in particles of low optical-loss material
US5517315A (en) * 1993-10-29 1996-05-14 The United States Of America As Represented By The Secretary Of The Navy Reflectometer employing an integrating sphere and lens-mirror concentrator
GB2286251B (en) * 1994-01-25 1997-07-09 Gersan Ets Examining a diamond for synthetic diamond
GB9418049D0 (en) * 1994-09-07 1994-10-26 Gersan Ets Examining a diamond
US5615005A (en) * 1995-01-23 1997-03-25 Ugts, Inc. Gemstone evaluation system
DE19528855A1 (de) * 1995-08-05 1997-02-06 Leybold Ag Verfahren und Vorrichtung zur spektralen Remissions- und Transmissionsmessung
US5650843A (en) * 1995-10-19 1997-07-22 Eastman Kodak Company Feedback control apparatus for a light integrating cavity
US5835205A (en) * 1996-02-12 1998-11-10 C3, Inc. Optical testing system for distinguishing a silicon carbide gemstone from a diamond
GB2312295B (en) * 1996-04-16 2000-04-19 Perkin Elmer Ltd Integrating sphere for spectroscopic analysis
US5923039A (en) * 1997-09-16 1999-07-13 Labsphere, Inc. Ultraviolet transmittance analyzing method and instrument
US6020954A (en) 1997-12-18 2000-02-01 Imagestatistics, Inc. Method and associated apparatus for the standardized grading of gemstones
US6980283B1 (en) 1997-12-18 2005-12-27 Imagestatistics, Inc. Method and associated apparatus for the standardized grading of gemstones
GB2394542A (en) * 2002-10-22 2004-04-28 Mark Johnson Diffuse light detection system
US7336347B2 (en) * 2003-12-22 2008-02-26 American Gem Society Methods, apparatus, and systems for evaluating gemstones
US7158240B2 (en) 2004-06-16 2007-01-02 The United States Of America As Represented By The Secretary Of The Army Measurement device and method
BE1016537A3 (nl) * 2004-11-10 2007-01-09 Wetenschappelijk En Tech Onder Werkwijze voor het onderscheiden van kleurloze en bijna kleurloze diamanten en opstelling voor het uitvoeren van deze werkwijze.
US7375812B2 (en) * 2005-02-22 2008-05-20 Axsun Technologies, Inc. Method and system for reducing parasitic spectral noise in tunable semiconductor source spectroscopy system
US7929140B2 (en) * 2005-05-18 2011-04-19 Axsun Technologies, Inc. Spectroscopy probe and material processing system
US7355683B2 (en) 2006-03-24 2008-04-08 American Gem Society Systems and methods for evaluating and displaying the dispersion of a diamond or other gemstone
FI20075173A0 (fi) * 2006-09-20 2007-03-12 Standard Measuring Devices Oy Yleisoptinen mittalaite
DE112007000650B4 (de) * 2006-10-30 2012-04-12 Von Ardenne Anlagentechnik Gmbh Lichtsender, Lichtempfänger und Messeinrichtung zur Messung optischer Eigenschaften transparenter Substrate
US7751034B2 (en) 2006-11-28 2010-07-06 American Gem Society Systems and methods for ray tracing
US8098369B2 (en) * 2007-12-07 2012-01-17 American Gem Society Systems and methods for the evaluation of scintillation in gemstones
US8705018B2 (en) * 2010-02-25 2014-04-22 Photoscribe, Inc. Arrangement for and method of examining gemstones
US8859969B2 (en) 2012-03-27 2014-10-14 Innovative Science Tools, Inc. Optical analyzer for identification of materials using reflectance spectroscopy
US9297749B2 (en) 2012-03-27 2016-03-29 Innovative Science Tools, Inc. Optical analyzer for identification of materials using transmission spectroscopy
GB2507775A (en) * 2012-11-09 2014-05-14 Feasa Entpr Ltd Scattering and analyzing LED light with sphere having central baffle
JP6227067B1 (ja) * 2016-07-25 2017-11-08 浜松ホトニクス株式会社 光計測装置
WO2018220572A1 (en) 2017-06-01 2018-12-06 Jubilee Diamond Instrument(S) Pte Ltd Uv reflection tester
US10837915B2 (en) 2017-12-19 2020-11-17 Jubilee Diamond Instrument (s) PTE. LTD Gemstone testing apparatus
US20200371041A1 (en) * 2017-12-19 2020-11-26 Jubilee Diamond Instrument (S) Pte. Ltd. Gemstone testing apparatus
GB2584876A (en) 2019-06-19 2020-12-23 Jubilee Diamond Instr S Pte Ltd Gemstone testing apparatus

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Publication number Priority date Publication date Assignee Title
US3944368A (en) * 1973-07-11 1976-03-16 Beesley Casper R Apparatus for color analysis of precious stones
GB1566325A (en) * 1976-02-05 1980-04-30 Dihaco Diamanten Handels Co Process and apparatus for ascertaining data relating to the valuation of gems
US4120582A (en) * 1976-10-27 1978-10-17 Donnelly Mirrors, Inc. Light reflectivity and transmission testing apparatus and method
US4093991A (en) * 1977-01-26 1978-06-06 Hunter Associates Laboratory, Inc. Spectrophotometer-digital data processing system for appearance measurements providing fast and accurate standardization, ease of use for different appearance measurements and fast response
GB2010474A (en) * 1977-10-19 1979-06-27 Horchler S Gem colour meter
JPS609708Y2 (ja) * 1978-03-23 1985-04-05 蓊 須賀 積分球式標準光源装置
US4259011A (en) * 1979-11-05 1981-03-31 Crumm John C Optical gem analyzer
JPS56122936A (en) * 1980-02-29 1981-09-26 Shimadzu Corp Reflection factor measuring device
JPS5892920A (ja) * 1981-11-30 1983-06-02 Karuniyuu Kogaku Kogyo Kk ダイヤモンドカラ−測定装置
DE3215879A1 (de) * 1982-04-29 1983-11-03 Fa. Carl Zeiss, 7920 Heidenheim Geraet zur spektrenmessung in der blutbahn
DE8704679U1 (de) * 1987-03-30 1987-05-27 Fa. Carl Zeiss, 7920 Heidenheim Meßgerät für Oberflächen mit bunten Glanzeffekten
US4965454A (en) * 1988-01-21 1990-10-23 Hitachi, Ltd. Method and apparatus for detecting foreign particle
DE3818815A1 (de) * 1988-06-03 1989-12-14 Zeiss Carl Fa Remissionsmessgeraet
US4892409A (en) * 1988-07-14 1990-01-09 Smith Harry F Photometric apparatus for multiwell plates having a positionable lens assembly
JPH06103268B2 (ja) * 1989-02-17 1994-12-14 金作 山下 ダイヤモンド等の宝石の輝き観察器具および該器具を用いた宝石の撮影方法

Also Published As

Publication number Publication date
US5164586A (en) 1992-11-17
EP0458223A3 (en) 1992-04-15
DE9005845U1 (de) 1990-07-26
EP0458223A2 (de) 1991-11-27

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