US Patent 7750362 Semiconductor light-emitting device

A semiconductor light-emitting device includes: a hollow body including a bottom wall and a surrounding wall cooperating with the bottom wall to define an encapsulant-receiving recess, the bottom wall being formed with a through-hole, the surrounding wall having a diffuse surface that surrounds the encapsulant-receiving recess; a heat-dissipating body provided on a bottom side of the bottom wall and covering the through-hole in the bottom wall; a light-emitting chip disposed in the through-hole in the bottom wall; a transparent encapsulant filling the encapsulant-receiving recess and the through-hole; and a wavelength-converting layer covering the transparent encapsulant.