Patent ID: 6310442
Filing Date: 2001-10-30
Classification: H01J

Abstract:
A discharge lamp (1) comprisingan at least partially transparent, closed tubular discharge vessel (2) having an external wall, said tubular discharge vessel being filled with a gas filling, andthree or more elongated electrodes (3-5, 9-12, 13) which are arranged parallel to the longitudinal axis of the tubular discharge vessel (2) and on the external wall of said tubular discharge vessel (2), wherein the following relationship is satisfied: ##EQU5##wherein s is the maximum spacing between an imaginary connecting line (20) of a pair of electrodes (3, 4; 3, 5) and the most closely neighboring point of said external wall of the tubular discharge vessel (2), anda is the mutual spacing between the electrodes of said pair of electrodes.