GB655650A - Improvements in and relating to photo-electric colorimetry - Google Patents

Improvements in and relating to photo-electric colorimetry

Info

Publication number
GB655650A
GB655650A GB3360248A GB3360248A GB655650A GB 655650 A GB655650 A GB 655650A GB 3360248 A GB3360248 A GB 3360248A GB 3360248 A GB3360248 A GB 3360248A GB 655650 A GB655650 A GB 655650A
Authority
GB
United Kingdom
Prior art keywords
photo
cell
lamp
transformer
compartment
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
GB3360248A
Other languages
English (en)
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.)
AUGUSTE LOUIS MARIE ANTOINE RO
Original Assignee
AUGUSTE LOUIS MARIE ANTOINE RO
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
Priority to FR964278D priority Critical patent/FR964278A/fr
Priority to US675473A priority patent/US2477209A/en
Application filed by AUGUSTE LOUIS MARIE ANTOINE RO filed Critical AUGUSTE LOUIS MARIE ANTOINE RO
Priority to GB3360248A priority patent/GB655650A/en
Publication of GB655650A publication Critical patent/GB655650A/en
Expired legal-status Critical Current

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
    • G01N21/251—Colorimeters; Construction thereof

Landscapes

  • 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)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Spectrometry And Color Measurement (AREA)
GB3360248A 1946-06-08 1948-12-31 Improvements in and relating to photo-electric colorimetry Expired GB655650A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR964278D FR964278A (enrdf_load_stackoverflow) 1948-12-31
US675473A US2477209A (en) 1946-06-08 1946-06-08 Colorimeter
GB3360248A GB655650A (en) 1948-12-31 1948-12-31 Improvements in and relating to photo-electric colorimetry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3360248A GB655650A (en) 1948-12-31 1948-12-31 Improvements in and relating to photo-electric colorimetry

Publications (1)

Publication Number Publication Date
GB655650A true GB655650A (en) 1951-07-25

Family

ID=10355050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3360248A Expired GB655650A (en) 1946-06-08 1948-12-31 Improvements in and relating to photo-electric colorimetry

Country Status (2)

Country Link
FR (1) FR964278A (enrdf_load_stackoverflow)
GB (1) GB655650A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR964278A (enrdf_load_stackoverflow) 1950-08-09

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