FIELD: lighting engineering.
SUBSTANCE: proposed method for converting infrared radiation into visible light ranging between yellow-green and yellow to orange-yellow light at output optical power up to 10 W and efficiency of up to 20% includes irradiation of anti-Stokes phosphor in spectral range of 940 to 1030 nm, inorganic material whose spectral absorption band approaches that of infrared radiation being used as anti-Stokes phosphor. Two design alternates of visible light luminescent source are also proposed basing on this method which have different infrared light sources and respective phosphor.
EFFECT: enlarged chromatic range of produced light, enhanced optical power and efficiency.
21 cl, 8 dwg, 21 ex
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