POWER SAVING HIGHL LUMINANCE INTEGRATED FLUORESCENT LAMP

摘要

An integrated fluorescent lamp is provided with fluorescent lamp tube groups which are bundle-arranged by making tube axes parallel, a spacer separating adjacent fluorescent lamp tubes at prescribed intervals, and a parallel connection part connecting the fluorescent lamp tube groups in parallel. Electrodes on both ends of the fluorescent lamp tube are constituted of discharge space insulation-type electrodes which are electrically insulated from an inner discharge space. When high frequency voltage is applied to the parallel connection parts at both ends, discharge gas is ionized on electrons and positive ions, and a third generation electron source (called just as electron source) and a positive ion source are formed near the discharge space insulation-type electrodes. The fluorescent lamp tubes can be kept to 40 to 45°C being a discharge optimum temperature by installing a heat keeping tube surrounding the integrated fluorescent lamp and heat keeping end pars at upper and lower ends. Even if all the tubes are simultaneously lighted, power consumption can be reduced and high luminance emission proportional to the number of tubes is realized. When the third generation electron source is used, the problem of electrode voltage drop and sputtering is solved.