FI46099C - Fotometri. - Google Patents

Fotometri.

Info

Publication number
FI46099C
FI46099C FI31970A FI31970A FI46099C FI 46099 C FI46099 C FI 46099C FI 31970 A FI31970 A FI 31970A FI 31970 A FI31970 A FI 31970A FI 46099 C FI46099 C FI 46099C
Authority
FI
Finland
Prior art keywords
photometers
Prior art date
Application number
FI31970A
Other languages
English (en)
Swedish (sv)
Other versions
FI46099B (fi
Inventor
Pentti J Alho
Original Assignee
Datex Oy
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 Datex Oy filed Critical Datex Oy
Priority to FI31970A priority Critical patent/FI46099C/fi
Priority to SE113971A priority patent/SE359162B/xx
Priority to CA104436A priority patent/CA930191A/en
Priority to DE19712105486 priority patent/DE2105486A1/de
Priority to FR7103862A priority patent/FR2079267B3/fr
Priority to GB2107071A priority patent/GB1304326A/en
Application granted granted Critical
Publication of FI46099B publication Critical patent/FI46099B/fi
Publication of FI46099C publication Critical patent/FI46099C/fi

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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • 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
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/1626—Arrangements with two photodetectors, the signals of which are compared

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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 Biological Materials (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FI31970A 1970-02-05 1970-02-05 Fotometri. FI46099C (fi)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FI31970A FI46099C (fi) 1970-02-05 1970-02-05 Fotometri.
SE113971A SE359162B (fi) 1970-02-05 1971-01-29
CA104436A CA930191A (en) 1970-02-05 1971-02-04 Photometer
DE19712105486 DE2105486A1 (de) 1970-02-05 1971-02-05 Fotometer
FR7103862A FR2079267B3 (fi) 1970-02-05 1971-02-05
GB2107071A GB1304326A (fi) 1970-02-05 1971-04-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI31970A FI46099C (fi) 1970-02-05 1970-02-05 Fotometri.

Publications (2)

Publication Number Publication Date
FI46099B FI46099B (fi) 1972-08-31
FI46099C true FI46099C (fi) 1972-12-11

Family

ID=8503931

Family Applications (1)

Application Number Title Priority Date Filing Date
FI31970A FI46099C (fi) 1970-02-05 1970-02-05 Fotometri.

Country Status (6)

Country Link
CA (1) CA930191A (fi)
DE (1) DE2105486A1 (fi)
FI (1) FI46099C (fi)
FR (1) FR2079267B3 (fi)
GB (1) GB1304326A (fi)
SE (1) SE359162B (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195022B1 (fi) * 1972-08-02 1976-01-23 Cometa Fr
CA1201606A (en) * 1983-01-27 1986-03-11 Donald L. Kramer Photometric device

Also Published As

Publication number Publication date
GB1304326A (fi) 1973-01-24
FI46099B (fi) 1972-08-31
FR2079267A3 (fi) 1971-11-12
SE359162B (fi) 1973-08-20
FR2079267B3 (fi) 1973-10-19
DE2105486A1 (de) 1971-08-26
CA930191A (en) 1973-07-17

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