1. Field of the Invention
The present invention relates to an emergency exit light, and more particularly to an emergency exit light whose thickness is considerably reduced without destroying the decoration style while the indicating effect is lighter and clearer.
2. Description of the Prior Art
A conventional emergency exit light, as disclosed in Taiwan Pat. No. 254463, 387693, 317352 and 341350 is designed in a manner of light box in which a fluorescent lamp is used as light source emitting from the inside to the outside in order that the words or the figures on the transparent plate can be presented to reach a directing or indicating aim. However, the fluorescent lamp occupies too much space and needs electronic parts such as transformer, stabilizer, etc. Consequently, the thickness of the conventional emergency exit light can't be reduced. It not only occupies much space, but also destroys the style of the original decoration. In addition, it is presented only in a flat manner and not in a projecting way. Another emergency exit light, as disclosed in Taiwan Pat. No. 317351, is presented in a side-projecting manner. However, it also uses the fluorescent lamp which occupies space so that the thickness of the circuit box can't also be reduced and the above-mentioned disadvantages are still present. In addition, the life of the fluorescent lamp is short, and it is unsafe because it will produce heat in using for a long time.