Greenblum & Bernstein P.L.C.
Discharge lamp lighting device
 A discharge lamp lighting device comprising a lamp socket for connecting the discharge lamp; a stabilizing circuit connected to the power source and outputting a voltage to the lamp socket; a starting circuit connected between the stabilizing circuit and the lamp socket, and activated before the discharge lamp begins discharging to generate a high voltage required to start discharging, and deactivated after discharging begins; and a means for disabling the starting circuit when the discharge lamp is not installed in response to the installation or non-installation of the discharge lamp to the lamp socket. Preferably, the starting circuit is integrated with the lamp socket, thus forming a lamp socket unit comprising a starting circuit. 
Matsushita Electric Works, Ltd.
H B H H F Y H H F B
H05B B60Q H05B H05B F21S Y02B H05B H05B F21S B60Q
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Nobuo Ryosuke Toshiaki Hideki
Kato Maruyama Nakamura Hamada