FR714758A - Method and apparatus for determining the intensity of light - Google Patents

Method and apparatus for determining the intensity of light

Info

Publication number
FR714758A
FR714758A FR714758DA FR714758A FR 714758 A FR714758 A FR 714758A FR 714758D A FR714758D A FR 714758DA FR 714758 A FR714758 A FR 714758A
Authority
FR
France
Prior art keywords
intensity
determining
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
French (fr)
Inventor
Friedrich Reiss
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 FR714758A publication Critical patent/FR714758A/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
    • G01J1/02—Details
    • G01J1/08—Arrangements of light sources specially adapted for photometry standard sources, also using luminescent or radioactive material
FR714758D 1930-04-04 1931-04-03 Method and apparatus for determining the intensity of light Expired FR714758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT714758X 1930-04-04

Publications (1)

Publication Number Publication Date
FR714758A true FR714758A (en) 1931-11-19

Family

ID=3679748

Family Applications (1)

Application Number Title Priority Date Filing Date
FR714758D Expired FR714758A (en) 1930-04-04 1931-04-03 Method and apparatus for determining the intensity of light

Country Status (1)

Country Link
FR (1) FR714758A (en)

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