Performance Indicator LLC of Lowell, Mass., has acquired an international nonexclusive license for a portfolio of glow-in-the-dark pigments. Developed by the University of Georgia Research Foundation Inc. in Athens and the University of Puerto Rico in Rio Piedras, the pigments can be designed to emit light in any color of the visible spectrum for nearly a day. The seven phosphors included in the agreement are environmentally safe.
- visible spectrum
- That region of the electromagnetic spectrum to which the retina is sensitive and by which the eye sees. It extends from about 400 to 750 nm in wavelength.
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