FR788325A - Photomètre photo-électrique - Google Patents

Photomètre photo-électrique

Info

Publication number
FR788325A
FR788325A FR788325DA FR788325A FR 788325 A FR788325 A FR 788325A FR 788325D A FR788325D A FR 788325DA FR 788325 A FR788325 A FR 788325A
Authority
FR
France
Prior art keywords
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
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.)
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 FR788325A publication Critical patent/FR788325A/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)
FR788325D 1934-06-29 1935-04-04 Photomètre photo-électrique Expired FR788325A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE788325X 1934-06-29

Publications (1)

Publication Number Publication Date
FR788325A true FR788325A (fr) 1935-10-08

Family

ID=6699448

Family Applications (1)

Application Number Title Priority Date Filing Date
FR788325D Expired FR788325A (fr) 1934-06-29 1935-04-04 Photomètre photo-électrique

Country Status (1)

Country Link
FR (1) FR788325A (fr)

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