REFLECTION LAYERS FORMED FROM AN ALUMINUM OXIDE PARTICLE MIXTURE

摘要

An aluminum oxide particle mixture for reflection layers in discharge lamps, and to discharge lamps of this type. The mixture has a first coarse-grained component and a second fine-grained component, with a primary grain size of preferably d₅₀(1) between 0.3 mum and 0.5 mum and d₅₀(2) of at most 0.05 mum, respectively (with an agglomerated size of the fine particles of less than 0.15 mum).