EXTERNAL-ELECTRODE DISCHARGE LAMP, EXTERNAL-ELECTRODE DISCHARGE LAMP MANUFACTURING METHOD, AND BACK LIGHT UNIT

摘要

An external-electrode discharge lamp free of luminance variation, a method for manufacturing the lamp, and a backlight unit are disclosed. The lamp (10) comprises a glass tube (11) having sealed ends and electrodes (18, 19) provided around the outer circumferential peripheries of the ends in the axial direction of the glass tube (11). During the operation of the lamp (10), the electrodes (18, 19) and the glass tube (11) interposed between the electrodes (18, 19) and the discharge space (14) equivalently function as first and second capacitors. The capacitances of the capacitors are substantially equal to each other.