| 摘要 |
PURPOSE:To provide a straight tube type fluorescent lamp apparatus wherein high efficiency is provided in a lighting apparatus itself while maintaining an optical output by suppressing a lamp from its temperature rise by constituting the apparatus such that a metal-made reflecting plate provided above the lamp is elastically brought into contact with a lamp top part. CONSTITUTION:In a straight tube type fluorescent lamp apparatus having a metal-made reflecting plate above a lamp, it has following constitution. Mounting screws 17 for mounting the reflecting plate 16 to a luminaire main unit 12 are provided. Coil springs 18 are inserted to be fitted to these mounting screws 17, and by these coil springs 18, elasticity is given to the reflecting plate 16 to energize it downward. Accordingly, the reflecting plate 16 is brought into elastic contact with a top part 15a of a sectional circle of the lamp 15. |
