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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
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Spectroscopy & Molecular Physics
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FR714758D1930-04-041931-04-03Procédé et appareil pour déterminer l'intensité de la lumière
ExpiredFR714758A
(fr)