FR935219A - Perfectionnements au posemètre à cellule photo-électrique - Google Patents

Perfectionnements au posemètre à cellule photo-électrique

Info

Publication number
FR935219A
FR935219A FR935219DA FR935219A FR 935219 A FR935219 A FR 935219A FR 935219D A FR935219D A FR 935219DA FR 935219 A FR935219 A FR 935219A
Authority
FR
France
Prior art keywords
photoelectric cell
light meter
cell light
meter
photoelectric
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)
Inventor
Charles Sacaze
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 FR935219A publication Critical patent/FR935219A/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)
FR935219D 1946-10-17 1946-10-17 Perfectionnements au posemètre à cellule photo-électrique Expired FR935219A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR935219T 1946-10-17

Publications (1)

Publication Number Publication Date
FR935219A true FR935219A (fr) 1948-06-14

Family

ID=9456603

Family Applications (1)

Application Number Title Priority Date Filing Date
FR935219D Expired FR935219A (fr) 1946-10-17 1946-10-17 Perfectionnements au posemètre à cellule photo-électrique

Country Status (1)

Country Link
FR (1) FR935219A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3087379A (en) * 1958-01-06 1963-04-30 Fotomatic Corp Combined light meter and sighting device
US3256771A (en) * 1962-06-25 1966-06-21 Gamma Scient Inc Spot photometer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3087379A (en) * 1958-01-06 1963-04-30 Fotomatic Corp Combined light meter and sighting device
US3256771A (en) * 1962-06-25 1966-06-21 Gamma Scient Inc Spot photometer

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