Semiconductor light -emitting element and illuminator thereof

The utility model discloses a semiconductor light -emitting element and illuminator thereof, semiconductor light -emitting element contain printing opacity base plate, light emitting diode structure and optical unit, and this printing opacity base plate has the holding surface and the second dominant surface of relative setting, this light emitting diode structure sets up at this holding surface, but and form the first dominant surface of light -emitting with the at least partial holding surface that does not overlap with the light emitting diode structure, this optical unit sets up at this first dominant surface to contain the light that covers the limit and correspond and disperse the limit, wherein should cover limit towards this printing opacity base plate, this optical unit still contains an at least optical structure, sets up and disperses the limit at this light to according to the wavelength of light will cover most likely the light that receive on the limit at least some disperse not equidirectionally. The utility model discloses a semiconductor light -emitting element can reach the luminous effect of omnidirectional light -emitting, mixed light and chromatic dispersion.