FR788015A - Photoelectric photometer for cameras - Google Patents

Photoelectric photometer for cameras

Info

Publication number
FR788015A
FR788015A FR788015DA FR788015A FR 788015 A FR788015 A FR 788015A FR 788015D A FR788015D A FR 788015DA FR 788015 A FR788015 A FR 788015A
Authority
FR
France
Prior art keywords
cameras
photoelectric photometer
photometer
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
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon 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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Application granted granted Critical
Publication of FR788015A publication Critical patent/FR788015A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
FR788015D 1934-06-19 1935-03-28 Photoelectric photometer for cameras Expired FR788015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE788015X 1934-06-19

Publications (1)

Publication Number Publication Date
FR788015A true FR788015A (en) 1935-10-02

Family

ID=6699380

Family Applications (1)

Application Number Title Priority Date Filing Date
FR788015D Expired FR788015A (en) 1934-06-19 1935-03-28 Photoelectric photometer for cameras

Country Status (1)

Country Link
FR (1) FR788015A (en)

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