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.)
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Klangfilm GmbH
Original Assignee
Klangfilm GmbH
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Filing date
Publication date
Application filed by Klangfilm GmbHfiledCriticalKlangfilm GmbH
Application grantedgrantedCritical
Publication of FR892029ApublicationCriticalpatent/FR892029A/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
G01J1/58—Photometry, e.g. photographic exposure meter using luminescence generated by light
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Spectroscopy & Molecular Physics
(AREA)
FR892029D1943-03-091943-03-09Procédé et appareil pour l'examen d'une lumière
ExpiredFR892029A
(fr)