4137 / Luminous intensity (Candela): Luminous intensity-Normal bulb on the Photometerbank at the PTB in Braunschweig: EUROPA, DEUTSCHLAND, NIEDERSACHSEN, BRAUNSCHWEIG (BRAUNSCHWEIG, GERMANY), 27.06.2007: Photometry at Physikalisch-Technische Bundesanstalt PTB in Braunschweig, Germany. Realization of the SI base unit of luminous intensity, the candela, with a Toshiba transfer standard lamp on the PTB`s unique 40-meter photometric bench, where a photometer measures the illuminance at various distances. Margitta Eltmann and Detlef Lindner aligning the set-up. - Marc Steinmetz / VISUM - Keywords: Germany, Physikalisch, Technische, Bundesanstalt, PTB, science, technology, physics, metrology, base, unit, international, system, of, units, SI, metrical, measure, measurement, standard, accurate, accuracy, lab, light, luminous, flux, intensity, candela, photometer, bench, optical, optics, photometry, scientist, people, transfer
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