BE516177A - - Google Patents

Info

Publication number
BE516177A
BE516177A BE516177DA BE516177A BE 516177 A BE516177 A BE 516177A BE 516177D A BE516177D A BE 516177DA BE 516177 A BE516177 A BE 516177A
Authority
BE
Belgium
Prior art keywords
beams
plate
rays
radiation
alternating current
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE516177A publication Critical patent/BE516177A/fr

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
    • G01J1/10Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20Photometry, 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
    • G01J1/34Photometry, 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 separate light paths used alternately or sequentially, e.g. flicker
    • G01J1/36Photometry, 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 separate light paths used alternately or sequentially, e.g. flicker using electric radiation detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
BE516177D BE516177A (de)

Publications (1)

Publication Number Publication Date
BE516177A true BE516177A (de)

Family

ID=153448

Family Applications (1)

Application Number Title Priority Date Filing Date
BE516177D BE516177A (de)

Country Status (1)

Country Link
BE (1) BE516177A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068746A (en) * 1960-01-29 1962-12-18 North American Aviation Inc Measuring and comparing device of the pyrometer type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068746A (en) * 1960-01-29 1962-12-18 North American Aviation Inc Measuring and comparing device of the pyrometer type

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