FR817674A - Advanced photometer with photocell - Google Patents

Advanced photometer with photocell

Info

Publication number
FR817674A
FR817674A FR817674DA FR817674A FR 817674 A FR817674 A FR 817674A FR 817674D A FR817674D A FR 817674DA FR 817674 A FR817674 A FR 817674A
Authority
FR
France
Prior art keywords
photocell
photometer
advanced
advanced 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)
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.)
Chauvin Arnoux & Cie
Original Assignee
Chauvin Arnoux & Cie
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 Chauvin Arnoux & Cie filed Critical Chauvin Arnoux & Cie
Application granted granted Critical
Publication of FR817674A publication Critical patent/FR817674A/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
    • G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
    • G01J1/4214—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for view-taking apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
FR817674D 1936-05-16 1936-05-16 Advanced photometer with photocell Expired FR817674A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR817674T 1936-05-16

Publications (1)

Publication Number Publication Date
FR817674A true FR817674A (en) 1937-09-08

Family

ID=9268477

Family Applications (1)

Application Number Title Priority Date Filing Date
FR817674D Expired FR817674A (en) 1936-05-16 1936-05-16 Advanced photometer with photocell

Country Status (1)

Country Link
FR (1) FR817674A (en)

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