DE3063518D1 - Measuring head for a densitometer - Google Patents

Measuring head for a densitometer

Info

Publication number
DE3063518D1
DE3063518D1 DE8080810296T DE3063518T DE3063518D1 DE 3063518 D1 DE3063518 D1 DE 3063518D1 DE 8080810296 T DE8080810296 T DE 8080810296T DE 3063518 T DE3063518 T DE 3063518T DE 3063518 D1 DE3063518 D1 DE 3063518D1
Authority
DE
Germany
Prior art keywords
spot
transducer
densitometer
light
area
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
DE8080810296T
Other languages
English (en)
Inventor
Fred Dr Mast
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.)
Gretag AG
Original Assignee
Gretag AG
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 Gretag AG filed Critical Gretag AG
Application granted granted Critical
Publication of DE3063518D1 publication Critical patent/DE3063518D1/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/095—Refractive optical elements
    • 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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
    • G01N21/474—Details of optical heads therefor, e.g. using optical fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (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 Or Analysing Materials By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
DE8080810296T 1979-09-28 1980-09-22 Measuring head for a densitometer Expired DE3063518D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH879179 1979-09-28

Publications (1)

Publication Number Publication Date
DE3063518D1 true DE3063518D1 (en) 1983-07-07

Family

ID=4344776

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080810296T Expired DE3063518D1 (en) 1979-09-28 1980-09-22 Measuring head for a densitometer

Country Status (5)

Country Link
US (1) US4341473A (de)
EP (1) EP0026741B1 (de)
JP (1) JPS5658640A (de)
AT (1) ATE3590T1 (de)
DE (1) DE3063518D1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56154604A (en) * 1980-05-01 1981-11-30 Dainippon Screen Mfg Co Ltd Measuring method and device for mesh image density or mesh area rate
US4633087A (en) * 1985-04-24 1986-12-30 Trebor Industries, Inc. Near infrared apparatus for measurement of organic constituents of material
US4928014A (en) * 1988-10-03 1990-05-22 Futrex, Inc. Near-infrared apparatus and method for determining percent fat in a body
US5028787A (en) * 1989-01-19 1991-07-02 Futrex, Inc. Non-invasive measurement of blood glucose
US4950905A (en) * 1989-02-06 1990-08-21 Xerox Corporation Colored toner optical developability sensor with improved sensing latitude
US5066865A (en) * 1989-09-01 1991-11-19 Measurex Corporation Single sided reflectance sensor for measuring select physical properties of a material using one or more wavelengths of radiation
JP2555950Y2 (ja) * 1992-09-28 1997-11-26 日本無線株式会社 投受光用ガラス
JPH0973650A (ja) * 1995-09-01 1997-03-18 Pioneer Electron Corp 光学装置
DE10029852A1 (de) * 2000-06-16 2001-12-20 Sick Ag Objekterkennung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1106483A (en) * 1966-05-06 1968-03-20 Zeiss Jena Veb Carl Variable optical diaphragms
US3843235A (en) * 1968-09-14 1974-10-22 Minolta Camera Kk Image forming optical system wherein defocus images are improved
DE2231330A1 (de) * 1972-06-27 1974-01-10 Agfa Gevaert Ag Verfahren und vorrichtung zur erzeugung eines scharfen fokus
CH607021A5 (de) * 1975-12-30 1978-11-30 Gretag Ag

Also Published As

Publication number Publication date
US4341473A (en) 1982-07-27
EP0026741A1 (de) 1981-04-08
ATE3590T1 (de) 1983-06-15
JPS6333659B2 (de) 1988-07-06
JPS5658640A (en) 1981-05-21
EP0026741B1 (de) 1983-05-25

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee