This comprehensive treatment of phosphorus fluorescent lamp is the first description of diffusion methods manufactured. It discusses the different factors that govern the selection of certain phosphors for use in lamps.

It is unique in the systematic application of the group theory to the excitation problem and the emission spectra in terms of crystalline structure of the host material and the levels of energy added foreign ions called fluoridation stimulants. Exceptional topics are included in various specialized fields since phosphorus requires knowledge of many branches of physics, chemistry, and crystallography as well as some aspects of ceramic technology.

The principles of atomic spectra theory, group theory, and the use of character tables for two-point crystal clusters are included for thirty-two convenient signal. The appendix contains basic tables for handling ion spectra in crystals..

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