COLD CATHODE FLUORESCENT LAMP

摘要

PROBLEM TO BE SOLVED: To provide a cold cathode fluorescent lamp for achieving a longer life even when a lamp current is greater and the diameter of a luminous tube is smaller by suppressing sputtering due to discharge to reduce the consumption of mercury. SOLUTION: An inner diameter D1 of the luminous tube 1 ranges 1-6 mm and a distance d between the inner face of the luminous tube 1 and the outer face of a cylindrical electrode 4 is restricted to range 0