FR1204295A - Device for photoelectric determination of the ratio of two luminous fluxes - Google Patents

Device for photoelectric determination of the ratio of two luminous fluxes

Info

Publication number
FR1204295A
FR1204295A FR1204295DA FR1204295A FR 1204295 A FR1204295 A FR 1204295A FR 1204295D A FR1204295D A FR 1204295DA FR 1204295 A FR1204295 A FR 1204295A
Authority
FR
France
Prior art keywords
ratio
luminous fluxes
photoelectric determination
photoelectric
determination
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.)
Jenoptik AG
Original Assignee
Carl Zeiss Jena GmbH
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 Carl Zeiss Jena GmbH filed Critical Carl Zeiss Jena GmbH
Application granted granted Critical
Publication of FR1204295A publication Critical patent/FR1204295A/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
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
FR1204295D 1958-10-27 1958-10-27 Device for photoelectric determination of the ratio of two luminous fluxes Expired FR1204295A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1204295T 1958-10-27

Publications (1)

Publication Number Publication Date
FR1204295A true FR1204295A (en) 1960-01-25

Family

ID=9672806

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1204295D Expired FR1204295A (en) 1958-10-27 1958-10-27 Device for photoelectric determination of the ratio of two luminous fluxes

Country Status (1)

Country Link
FR (1) FR1204295A (en)

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