FR1190760A - Illuminance measurement recording device - Google Patents

Illuminance measurement recording device

Info

Publication number
FR1190760A
FR1190760A FR1190760DA FR1190760A FR 1190760 A FR1190760 A FR 1190760A FR 1190760D A FR1190760D A FR 1190760DA FR 1190760 A FR1190760 A FR 1190760A
Authority
FR
France
Prior art keywords
recording device
illuminance measurement
measurement recording
illuminance
recording
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Application granted granted Critical
Publication of FR1190760A publication Critical patent/FR1190760A/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)
FR1190760D 1958-01-22 1958-01-22 Illuminance measurement recording device Expired FR1190760A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1190760T 1958-01-22

Publications (1)

Publication Number Publication Date
FR1190760A true FR1190760A (en) 1959-10-15

Family

ID=9666466

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1190760D Expired FR1190760A (en) 1958-01-22 1958-01-22 Illuminance measurement recording device

Country Status (1)

Country Link
FR (1) FR1190760A (en)

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