FR775411A - Photomètre - Google Patents

Photomètre

Info

Publication number
FR775411A
FR775411A FR775411DA FR775411A FR 775411 A FR775411 A FR 775411A FR 775411D A FR775411D A FR 775411DA FR 775411 A FR775411 A FR 775411A
Authority
FR
France
Prior art keywords
photometer
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
Hans Tonnies
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 FR775411A publication Critical patent/FR775411A/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
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
FR775411D 1934-07-06 1934-07-06 Photomètre Expired FR775411A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR775411T 1934-07-06

Publications (1)

Publication Number Publication Date
FR775411A true FR775411A (fr) 1934-12-28

Family

ID=9200426

Family Applications (1)

Application Number Title Priority Date Filing Date
FR775411D Expired FR775411A (fr) 1934-07-06 1934-07-06 Photomètre

Country Status (1)

Country Link
FR (1) FR775411A (fr)

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