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Publication of FR818265ApublicationCriticalpatent/FR818265A/fr
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
G01J1/48—Photometry, e.g. photographic exposure meter using chemical effects
G01J1/54—Photometry, e.g. photographic exposure meter using chemical effects by observing photo-reactions between gases
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Spectroscopy & Molecular Physics
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FR818265D1936-05-281936-05-28Procédé et dispositifs pour l'utilisation et la conservation des appareils à gaz photo-sensibles
ExpiredFR818265A
(fr)