Illumination system for medical diagnosis, has light sources of specific wavelength range arranged in housing without filters

摘要

The system includes a housing, light sources and an optical system (4). The wavelength range of the light sources is between 430 and 470 nm, without requiring filters. Light-emitting diodes or fluorescent tubes are preferably used as blue light sources (2). Blue light sources may be accommodated together with white light sources or light sources of other colors, and switched in common or separately.