Abstract

Calculations are presented for the range of color and luminous efficiency to be expected when typical phosphors are employed with either low-pressure or high-pressure mercury-vapor discharges. In the case of binary phosphor blends corresponding to colors lying on the planckian locus, maximum efficiency is always obtained when the wavelengths of peak emission for the two components lie near 445 and 580–590 nm.

© 1972 Optical Society of America

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Equations (25)

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