LED-Weißlichtquelle mit breitbandiger Anregung

摘要

A white light source comprises a UV-/blue-emitting semi-conductor LED (1), an embedding mass with phosphor particles (6) and several light emitting zones. Said light emitting zones are arranged within a layered structure, on a common substrate (10, 20), whereby the emission maxima of the light emitting zones are energetically staggered by various choices of compound or semi-conductor material thickness.