Abstract
The striking feature of sodium-vapor lamps is their radiation dominated by the emission of two resonance lines at 589/590 nm. This emission is quite close to the maximum luminous efficiency function at 555 nm and hence contributes effectively to the luminous efficacy. However, due to the limited spectral range of the emission, the spectrum is yellowish and suffers from a poor color rendering.
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Acknowledgments
The authors kindly acknowledge valuable contributions to this chapter by Stuart Mucklejohn.
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Schöpp, H., Franke, S. (2014). High-Pressure Sodium-Vapor Lamps. In: Karlicek, R., Sun, CC., Zissis, G., Ma, R. (eds) Handbook of Advanced Lighting Technology. Springer, Cham. https://doi.org/10.1007/978-3-319-00295-8_5-1
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DOI: https://doi.org/10.1007/978-3-319-00295-8_5-1
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