真空断熱構造による二重管冷陰極蛍光ランプの特性

概要

論文の詳細を見る
A novel cold cathode fluorescent lamp (CCFL) with an adiabatic layer suitable for backlighting of PDAs (Personal Digital Assistants) is described. The adiabatic layer (100 - 200μm) is formed between a light tube and an outer tube and is filled wit low - pressure gases. This raises the temperature of the light tube to the suitable value (50 - 70℃), Which maximizes efficiency even in low lamp wattage operation and in low ambient temperature. The results of experiments and heat transfer analyses show that the optimum pressure in an adiavatic layer lies between 1 Pa and 10 Pa. At apressure of less than 1 Pa, the lamp matntains the temperature at a constant level because of the coduction loss is lower than the radiation loss.
社団法人照明学会の論文
2001-02-01