FR866733A - Instrument de mesure, en particulier posemètre - Google Patents

Instrument de mesure, en particulier posemètre

Info

Publication number
FR866733A
FR866733A FR866733DA FR866733A FR 866733 A FR866733 A FR 866733A FR 866733D A FR866733D A FR 866733DA FR 866733 A FR866733 A FR 866733A
Authority
FR
France
Prior art keywords
measuring instrument
particular light
light meter
meter
instrument
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)
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.)
Metrawatt AG
Original Assignee
Metrawatt AG
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 Metrawatt AG filed Critical Metrawatt AG
Application granted granted Critical
Publication of FR866733A publication Critical patent/FR866733A/fr
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)
FR866733D 1938-10-08 1940-08-13 Instrument de mesure, en particulier posemètre Expired FR866733A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE866733X 1938-10-08

Publications (1)

Publication Number Publication Date
FR866733A true FR866733A (fr) 1941-08-30

Family

ID=6802038

Family Applications (1)

Application Number Title Priority Date Filing Date
FR866733D Expired FR866733A (fr) 1938-10-08 1940-08-13 Instrument de mesure, en particulier posemètre

Country Status (1)

Country Link
FR (1) FR866733A (fr)

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