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fluorescence |
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fluorescenceShort-lived luminescence (a glow not caused by high temperature). Phosphorescence lasts a little longer. Fluorescence is used in strip and other lighting, and was developed rapidly during World War II because it was a more efficient means of illumination than the incandescent lamp. Recently, small bulb-size fluorescence lamps have reached the market. It is claimed that, if widely used, their greater efficiency could reduce demand for electricity. Other important applications are in fluorescent screens for television and cathode-ray tubes. |
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| The walls of these cylinders hold the pigments that cause the wings to glow, or fluoresce. One of these materials, calcium tungstate, was found to fluoresce with approximately six times the intensity of barium platinocyanide. These materials fluoresce with a bright glow under the lamp's longwave ultraviolet light, making them visible in bathrooms and on sitting and sleeping surfaces. |
fluoresce
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