GB1054848A - - Google Patents

Info

Publication number
GB1054848A
GB1054848A GB1054848DA GB1054848A GB 1054848 A GB1054848 A GB 1054848A GB 1054848D A GB1054848D A GB 1054848DA GB 1054848 A GB1054848 A GB 1054848A
Authority
GB
United Kingdom
Prior art keywords
beams
intensity
stop
measuring
reflection
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
Other languages
English (en)
Publication date
Publication of GB1054848A publication Critical patent/GB1054848A/en
Expired 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
    • G01J1/22—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 a variable element in the light-path, e.g. filter, polarising means
    • G01J1/24—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 a variable element in the light-path, e.g. filter, polarising means using electric radiation detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB1054848D Expired GB1054848A (enExample)

Publications (1)

Publication Number Publication Date
GB1054848A true GB1054848A (enExample) 1900-01-01

Family

ID=1758362

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1054848D Expired GB1054848A (enExample)

Country Status (1)

Country Link
GB (1) GB1054848A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018874A1 (fr) * 1979-05-02 1980-11-12 Thomson-Csf Système récepteur optoélectrique multispectral à haute dynamique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018874A1 (fr) * 1979-05-02 1980-11-12 Thomson-Csf Système récepteur optoélectrique multispectral à haute dynamique
FR2455751A1 (fr) * 1979-05-02 1980-11-28 Thomson Csf Systeme recepteur optoelectrique multispectral a haute dynamique

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