Two Photovoltaic Cell Photometers for Measurement of Light Distribution

For many years those engaged in photometric tests have hoped for less burdensome methods, especially with regard to measurements of light distribution. The authors describe two types of photometers to which light-sensitive cells have been adapted. Any discussion of the color, fatigue, sensitivity and other characteristics of the cells themselves has not been considered within the scope of this paper. Sufficient experience with these photometers has been obtained to proved their practical worth. Further development of light-sensitive cells should make them of increasing value in the field of photometric measurements.