FR803919A - Comparator photometer - Google Patents

Comparator photometer

Info

Publication number
FR803919A
FR803919A FR803919DA FR803919A FR 803919 A FR803919 A FR 803919A FR 803919D A FR803919D A FR 803919DA FR 803919 A FR803919 A FR 803919A
Authority
FR
France
Prior art keywords
photometer
comparator
comparator photometer
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
French (fr)
Inventor
Jacques Visseaux
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 filed Critical
Application granted granted Critical
Publication of FR803919A publication Critical patent/FR803919A/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
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
FR803919D 1936-04-01 1936-04-01 Comparator photometer Expired FR803919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR803919T 1936-04-01

Publications (1)

Publication Number Publication Date
FR803919A true FR803919A (en) 1936-10-12

Family

ID=9250406

Family Applications (1)

Application Number Title Priority Date Filing Date
FR803919D Expired FR803919A (en) 1936-04-01 1936-04-01 Comparator photometer

Country Status (1)

Country Link
FR (1) FR803919A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555328A1 (en) * 1983-11-17 1985-05-24 Oriel Sarl Apparatus for testing the illumination of built-in cells in cameras

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555328A1 (en) * 1983-11-17 1985-05-24 Oriel Sarl Apparatus for testing the illumination of built-in cells in cameras

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