Neon discharge lamp for generating amber light

摘要

A neon gas discharge lamp is provided which produces an acceptable amber color emission for automotive applications. The red emission from the neon discharge when the lamp is operated in a pulsed mode is combined with a green emission from a substituted Y3Al15O12:Ce phosphor coated on the interior surface of the lamp. The resulting amber emission meets both SAE and ECE amber color requirements. In particular, phosphor has the general formula: Y3-(a+b+c)CeaMbVcAl5O12 where M is Gd or La; V are lattice vacancies; 0.01 ≤ a ≤ 0.08; 0.60 ≤ b ≤ 2.4; and 0 ≤ c ≤ 0.1 <IMAGE>