LIGHT SOURCE FOR EMITTING INFRARED RADIATION, PARTICULARLY FOR MEDICAL SKIN IRRADIATION

摘要

A light source (1) for emitting infrared radiation which may be specifically used for irradiating living tissue in medical applications is proposed. The light source (1) comprises a light emitter (3) comprising for example LEDs (9) for emitting non-infrared radiation e.g. in a spectral range of between 370 and 900 nm. The light source (1) further comprises a wavelength converting element (5) for converting non-infrared radiation into infrared radiation preferably in a wavelength spectrum excluding wavelength ranges in which water significantly absorbs infrared radiation. The proposed infrared light source (1) is highly efficient due to its radiation conversion principle and may provide infrared radiation with specific characteristics allowing deep penetration into living tissue.