白光数码管低温环境下光通量补偿方法研究
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摘要
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 3mm to 1mm without affecting the eye recognition. This technology enables a thin epoxy through which digital tube emitting light penetrates and improves the luminous flux by11. 6%,thus prolonging the service life of the digital tube.
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 3mm to 1mm without affecting the eye recognition. This technology enables a thin epoxy through which digital tube emitting light penetrates and improves the luminous flux by11. 6%,thus prolonging the service life of the digital tube.
引文
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[2]Sheu J K,Hang S J C,Kuo C H,et a1.White light emission from near UV InGaN-GaN LED chip precoated with blue/green/red phosphors[J].IEEE Photon Technol Lett,2003,15(1):18-20.
[3]Sheng L J.Research of the while light of the digital tube technology based on the point glue[J].Optical Technique,2013,39(3):286-288.
[4]Sheng L J.Analysis of conversion rate of phosphor powder for non-sealing white nixie tube[J].Chinese Journal of Spectroscopy Laboratory,2012,29(1):479-483.
[5]盛立军,孔宝根.基于空封技术的白光数码管寿命的研究[J].光学技术,2011,37(4):487-490.