The technical parameters of these lamps depend on the characteristics associated with the phosphor, namely: type, composition, granulation, application method, and color temperature, as well as the lamp power supply systems. Most research conducted in this field is covered by strict technological secrecy, and the data made available is of a marketing and selective nature. The article presents an analysis of phosphor spectral distributions as a function of excitation.In low-pressure discharge lamps (fluorescent lamps), the source of visible light is phosphors excited by radiation emitted by mercury vapor.
The radiation emitted as a result of mercury atom excitation consists of approximately: 11.5% radiation with a wavelength of 184.9 nm, 85% with a wavelength of 253.7 nm, and 3.5% of other wavelengths: 313, 365, 405, 435, 546 nm [2, 3]. The spectral distribution of the lamp’s radiation is strictly dependent on the type of phosphor used. (…)
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Source: Logistyka Magazine