| Popis: |
The calibration and use of simple, non-automatic equipment for spectrophotometry of light sources is described, with particular attention to precautions required for accuracy. The computation of chromaticity from the spectral energy distribution curves is illustrated, with results for a variety of lamps. These results show better agreement with visual colorimetry than in other recently published work. The change of chromaticity of fluorescent lamps with varied loading is analysed by the same methods, and the application to the study of phosphors briefly mentioned. |
