Determination of the spectral emission of commercial flashbulbs by emission spectrographic techniques.
The relative energy distributions of the M-2, P-25, AG-1, and M-3 flashbulbs have been determined over the spectral range from 3400 A to 7600 A, using a National Bureau of Standards lamp as a spectral standard, and a Jarrell-Ash Ebert-mount spectrograph as a spectroradiometer. From these data and the blackbody radiation function, values for the color temperature of the flashbulbs have been calculated using a computer to derive a least-squares, best-fit value of color temperature.
Bracco
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General Telephone & Electronics Laboratories,Inc., 208-20 Willets Point Boulevard, Bayside, NewYork 11360, USA.
Weisberger
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