CH499773A - Photometer - Google Patents

Photometer

Info

Publication number
CH499773A
CH499773A CH1633167A CH1633167A CH499773A CH 499773 A CH499773 A CH 499773A CH 1633167 A CH1633167 A CH 1633167A CH 1633167 A CH1633167 A CH 1633167A CH 499773 A CH499773 A CH 499773A
Authority
CH
Switzerland
Prior art keywords
log
photometer
light
photoresistor
intensity
Prior art date
Application number
CH1633167A
Other languages
German (de)
English (en)
Inventor
Marie De Jong Eduar Benediktus
Original Assignee
Technicon Corp
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 Technicon Corp filed Critical Technicon Corp
Publication of CH499773A publication Critical patent/CH499773A/de

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/42Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4228Photometry, e.g. photographic exposure meter using electric radiation detectors arrangements with two or more detectors, e.g. for sensitivity compensation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/42Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44Electric circuits
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27Colour; 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (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)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CH1633167A 1966-11-18 1967-11-17 Photometer CH499773A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6616304A NL6616304A (fr) 1966-11-18 1966-11-18

Publications (1)

Publication Number Publication Date
CH499773A true CH499773A (de) 1970-11-30

Family

ID=19798231

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1633167A CH499773A (de) 1966-11-18 1967-11-17 Photometer

Country Status (6)

Country Link
BE (1) BE705885A (fr)
CH (1) CH499773A (fr)
DE (1) DE1572695A1 (fr)
FR (1) FR1583727A (fr)
GB (1) GB1191719A (fr)
NL (1) NL6616304A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676686A (en) * 1970-07-24 1972-07-11 Instrumentation Specialties In High sensitivity light absorbance apparatus
CN116429250B (zh) * 2023-06-14 2023-10-13 深圳深浦电气有限公司 光电检测电路、光电检测方法和光电传感器

Also Published As

Publication number Publication date
GB1191719A (en) 1970-05-13
DE1572695A1 (de) 1970-05-14
NL6616304A (fr) 1968-05-20
FR1583727A (fr) 1969-12-05
BE705885A (fr) 1968-03-01

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Legal Events

Date Code Title Description
PL Patent ceased