| 摘要 |
<p>PURPOSE:To make the brightness of a discharge lamp uniform by winding respective sections of the output winding wire of an oscillation transformer divided in two sections on a bobbin so as that the distances from the beginning and the end portion of the windings to the input winding are nearly equal. CONSTITUTION:The output winding 182 of an oscillation transformer is divided in at least two sections, and respective sections 1821 and 1822 are wound on a bobbin 25 so as that the distances from the beginning and the end portions of respective output windings 1821 and 1822 to the input winding 181 are nearly equal. Because the distances from the beginning and the end portions of the output winding 182 of the oscillation transformer 18 to the input winding 181 of which are made to be nearly equal, the stray capacities in respective portions and thus the leakage currents of which are kept nearly equal to eliminate the generation of the unbalance of the brightness between respective end portions of discharge lamps 21, 22. Thereby the brightness of the lamp can be made uniform.</p> |
