FR1033927A - Posemètre pour photographie - Google Patents

Posemètre pour photographie

Info

Publication number
FR1033927A
FR1033927A FR1033927DA FR1033927A FR 1033927 A FR1033927 A FR 1033927A FR 1033927D A FR1033927D A FR 1033927DA FR 1033927 A FR1033927 A FR 1033927A
Authority
FR
France
Prior art keywords
photography
light meter
meter
light
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
Emile-Alexandre Virgot
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 FR1033927A publication Critical patent/FR1033927A/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
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
    • G01J1/28—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
FR1033927D 1951-03-14 1951-03-14 Posemètre pour photographie Expired FR1033927A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1033927T 1951-03-14

Publications (1)

Publication Number Publication Date
FR1033927A true FR1033927A (fr) 1953-07-16

Family

ID=9584765

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1033927D Expired FR1033927A (fr) 1951-03-14 1951-03-14 Posemètre pour photographie

Country Status (1)

Country Link
FR (1) FR1033927A (fr)

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