shining and - orthosilikat, oscilloscope screen with such a silicate and niederdruckquecksilberdampfentladungslampe with such a screen.

摘要

Luminescent alkaline earth metal orthosilicate activated by praseodymium, defined by the formula M2-3/2x-1/2yPrxM min ySiO4 in which M is at least one of the elements Ca and Sr of which up to 50 mol % may be replaced by Ba and/or of which up to 20 mol % may be replaced by Mg, in which M min is at least one of the elements Li, Na and K and in which 0.004 /= x /= 0.10 and 0 /= y /= 0.10.