白光数码管低温环境下光通量补偿方法研究

On Luminous Flux Compensation Method of White Light Digitron in Low Temperature

白光数码管长期在低温(-30℃)环境下工作将有16%的光通量损失,使数码管的寿命下降到1100 h左右.应用发光体集成技术可以将数码管厚度从3 mm下降到1 mm而不会影响人眼的识别,这一技术使数码管发出光穿透的环氧树脂厚度变薄,可以提高数码管11.6%的光通量,从而延长数码管的寿命.

In some countries and regions, the temperature is quite low with only -20℃ -30 ℃ for the most part of the year. Under such conditions, white light digitron will have a flux loss of 16% when it works below - 30℃ for a long time, and the digital tube＇s life is shortened down to about 1100 hours. Luminous body integration technology can be applied to decrease the digital tube from 3ram to lmm without affecting the eye recognition. This technology enables a thin epoxy through which digital tube emitting light penetrates and improves the luminous flux byl 1.6%, thus prolonging the service life of the digital tube.