DE2207544A1 - Lichtabsorptionsmeßgerät zur Bestimmung von optischen Dichten - Google Patents

Lichtabsorptionsmeßgerät zur Bestimmung von optischen Dichten

Info

Publication number
DE2207544A1
DE2207544A1 DE19722207544 DE2207544A DE2207544A1 DE 2207544 A1 DE2207544 A1 DE 2207544A1 DE 19722207544 DE19722207544 DE 19722207544 DE 2207544 A DE2207544 A DE 2207544A DE 2207544 A1 DE2207544 A1 DE 2207544A1
Authority
DE
Germany
Prior art keywords
light
light source
output
sensitive display
energy
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.)
Pending
Application number
DE19722207544
Other languages
German (de)
English (en)
Inventor
Colin Vestey Tonbridge Kent Rieh (Großbritannien). M
Original Assignee
Täte & LyIe Ltd., London
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 Täte & LyIe Ltd., London filed Critical Täte & LyIe Ltd., London
Publication of DE2207544A1 publication Critical patent/DE2207544A1/de
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
    • G01J1/28—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source
    • G01J1/30—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source using electric radiation detectors
    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
DE19722207544 1971-02-18 1972-02-18 Lichtabsorptionsmeßgerät zur Bestimmung von optischen Dichten Pending DE2207544A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB496571 1971-02-18

Publications (1)

Publication Number Publication Date
DE2207544A1 true DE2207544A1 (de) 1972-11-23

Family

ID=9787236

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722207544 Pending DE2207544A1 (de) 1971-02-18 1972-02-18 Lichtabsorptionsmeßgerät zur Bestimmung von optischen Dichten

Country Status (5)

Country Link
US (1) US3806258A (enExample)
JP (1) JPS52159679U (enExample)
DE (1) DE2207544A1 (enExample)
FR (1) FR2126017A5 (enExample)
GB (1) GB1323662A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823832A1 (de) * 1977-05-31 1978-12-07 Snecma Messeinrichtung fuer den transparenzwert der luft
EP0115122A1 (en) * 1982-12-25 1984-08-08 Satake Engineering Co., Ltd. Automatic background brightness control device for colour sorting apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5127381A (ja) * 1974-08-30 1976-03-06 Omron Tateisi Electronics Co Dakudokei
US4412744A (en) * 1981-06-01 1983-11-01 E. I. Du Pont De Nemours & Co. Absolute spectrophotometer
US4449821A (en) * 1982-07-14 1984-05-22 E. I. Du Pont De Nemours And Company Process colorimeter
EP0271109A3 (en) * 1986-12-11 1990-07-04 The Perkin-Elmer Corporation Respiratory co2 detector circuit with high quality waveform

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4020400Y1 (enExample) * 1964-11-25 1965-07-15
GB1087990A (en) * 1965-05-03 1967-10-18 Vickers Ltd Measurement of absorption by a substance of radiation
US3393604A (en) * 1965-08-13 1968-07-23 Gen Time Corp Condition responsive process timer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823832A1 (de) * 1977-05-31 1978-12-07 Snecma Messeinrichtung fuer den transparenzwert der luft
EP0115122A1 (en) * 1982-12-25 1984-08-08 Satake Engineering Co., Ltd. Automatic background brightness control device for colour sorting apparatus

Also Published As

Publication number Publication date
JPS52159679U (enExample) 1977-12-03
GB1323662A (en) 1973-07-18
US3806258A (en) 1974-04-23
FR2126017A5 (enExample) 1972-09-29

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Legal Events

Date Code Title Description
OD Request for examination
OHN Withdrawal