Fluorescent lamps with improved color rendering. Peculiarities. Scheme, description

ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Fluorescent lamps with improved color rendering. Peculiarities. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Fluorescent lamps

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These are lamps with rare earth phosphors (P3L). They have narrow-band spectra with emission maxima in the areas of maximum sensitivity of the human eye (450, 540 and 610 nm). The use of highly efficient three- and five-band rare-earth phosphors led to a significant increase in the color rendering index to Ra = 82-97. For high color rendering, five-band LLs had to sacrifice light output.

At the same time, the luminous flux of lamps with improved color rendering with a three-band phosphor Ra = 80-89 is approximately 30% higher than that of standard fluorescent lamps, and for five-band lamps it is approximately 9% lower.

Author: Koryakin-Chernyak S.L.

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