Phosphor
efficiency is the size of its particles have a close relationship with
the industry to use the phosphor diameter of 5μm ~ 15μm. Studies have
shown that relatively more coarse particles, the relatively higher
luminous efficiency, but on the other hand, the more coarse the phosphor particles in the system, the easier the process of
sedimentation in the use of time is not easy to control. Difficult to
precipitate phosphor particles smaller, but its relatively low light
efficiency. To this end, in order to solve the phosphor efficiency and
precipitation contradictory, we can reduce the use of time, increasing
the density of glue and other methods for coarse sediment is not easy
to increase phosphor LED luminous efficiency. |