A sprinkler assembly includes a sprinkler body having a base and a frame extending from the base. The invention consists in producing an adjustable space-angle focusing system by means of an adjustably weaker field with curved equipotential lines at the end of the reflector instead of a fully homogeneous electrical reflection field. Each resource object represents a single resource and contains one or more resource attributes to describe the resource. A luminescent material layer conformally covers the semiconductor light emitting die, wherein the luminescent material layer has at least one opening corresponding to and exposing the at least one bond pad. Adverse effects of the strain stress can be prevented without widening the externally connecting interconnection.