الفهرس 
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Abstract
In this work the realization of total luminous flux is being carried out through the calibration of incandescent transfer standard lamps directly from (NRC) primary standards of total luminous flux such lamps were used for an international comparison of the total luminous flux scales of five national institute.
The design, constriction and characterization of new temperature controlled photometer to be used with the NRC three meter integrating sphere in calibration of incandescent working standard lamps.
The final results of the uncertainties are
1-The relative expanded (k=2) uncertainty budget for the total luminous flux for the incandescent transfer standard lamps which is 2.15%.
2-The relative expanded (k=2) uncertainty budget for the total luminous flux for the incandescent working standard lamps which is 2.4%
3-The uncertainty budget for the spectral responsivity of the new temperature controlled photometer is mentioned in the text.