Full-wave-band uniform-field shadowless illumination optical system and method

The invention relates to the technical field of optics, in particular to a full-wave-band uniform-field shadowless illumination optical system and a full-wave-band uniform-field shadowless illumination optical method. The system comprises a shell, an LED light source, a wire, a stacked ellipsoid curved surface reflector, a uniform illumination compensation lens and a lossless light guide lens group. The LED light source is used for emitting light; the uniform illumination compensation lens is used for converting light rays emitted by the LED light source into light rays with uniform light intensity; the stacked ellipsoid curved surface reflector is used for expanding the reflection range of the light rays with uniform light intensity, so that after the light rays with uniform light intensity are reflected, the reflected light rays form a shadow-free illumination light field in a target area; and the lossless light guide lens group is used for prolonging the transmission distance of the reflected light and tra