MULTI-PURPOSE SOURCE OF POLYCHROMATIC OPTICAL IRRADIATION

摘要

The present invention provides the multi-purpose source of polychromatic optical irradiation with spatial shape of output power distribution of the light beam remaining stable in a wide spectral range while spectral, temporal, and energetic characteristics of the output beam are variable and controlled by a microprocessor. The device comprises an array of light-emitting diodes operating at different wavelengths which are situated in the positioning assembly so that their irradiation is incident in a diffraction element under the angle specific for each wavelength in such a way that the diffracted or refracted beams propagate in one common direction. Either a diffraction grating or acousto-optic Bragg cell or their combination can be used as the diffraction element. Design of the device provides more efficient illumination of an object.