Lumen-strong energy-saving light source has cavity that is consists of hollow chamber, whose inner wall surfaces are occupied with light emitting diode that illuminate internally, where wall surfaces are arranged around geometrical axis

摘要

The lumen-strong energy-saving light source has a cavity that is consists of a hollow chamber, whose inner wall surfaces are occupied with light emitting diode (1) that illuminate internally. The wall surfaces are arranged around a geometrical axis. A light emitting surface is arranged centrally and diametrically opposite to a three dimensional reflective body on the wall surfaces in the geometrical axis and subsequently on a side, which are tapered in the direction of the light emitting surface.