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Publication of DE141774CpublicationCriticalpatent/DE141774C/de
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
G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
G01J1/12—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using wholly visual means
G01J1/14—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using wholly visual means using comparison with a surface of graded brightness
Verfahren und Vorrichtung zur Bestimmung der Belichtungszeit und der Farbanteile des Lichts für die Belichtung eines Aufzeichnungsmaterials für Halbtonbilder
Als Handgeraet ausgebildete Vorrichtung zum Bestimmen des jeweils geeignetsten Schichttraegers, beispielsweise Entwicklungspapiers, und der Belichtungszeit