%0 Journal Article
%T Measurement of Luminous Intensity Using Filtered Trap Detector
%J International Journal of Optics and Applications
%@ 2168-5061
%D 2012
%I 
%R 10.5923/j.optics.20120204.03
%X The work described in this paper is a part of the process of lamp and photometer calibration to obtain a new luminous-intensity scale with a lower uncertainty. The procedure and the results of realizing the photometric scale with a standardized detector at the National Institute for Standards (NIS) are described. This method enables photometric values to be derived from absolute spectroradiometric measurements by exact computation. A filtered trap detector has been characterized and used to measure the absolute spectral power distribution of standard lamps. From these data a photometric scale of luminous intensity has been realized. The results were compared to the certified calibration values obtained by National Physical Laboratory (NPL), and showed agreement within uncertainty of ¡À 1.8%
%K Photometry
%K Spectral Irradiance
%K Trap Detector
%K Luminous Intensity
%K Filtered Radiometer
%U http://article.sapub.org/10.5923.j.optics.20120204.03.html