An International Intercomparison of Spectral Irradiance Scales

摘要: An intercomparison among the spectral irradiance scales of eight national standardizing laboratories has been carried out by Electrotechnical Laboratory Japan. Four tungsten-filament, quartz-bromine lamps with clear frosted bulbs were distributed to each participants. The values irradiance, produced at a specified point measured seven wavelengths from 300 800 nm. comparison shows that most agreed within ±1%, except for 300, 350 and It is suggested further study necessary those wavelengths.