Power saving illuminating device

The present invention concerns a power saving illuminating device. The device comprises a base, at least one semiconductor luminotron, a DC power source disposed within the base, and a transparent refractive body covered on the opening of the base, said semiconductor luminotron being connected to said power source, wherein said transparent refractive body is full of light reflecting granulae within its body and is positioned in a manner that an end surface thereof is facing the semiconductor luminotron. The device is power saving and may be used as signposts, guideposts, colored lights, decoration lights and illuminating sign plates.

DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS Refer to FIG. 1 , the illuminating device comprises a base 1 , a semiconductor luminotron 2 , a DC power source 3 , a transparent refractive body 4 . Semiconductor luminotron 2 is disposed within base 1 with its positive and negative electrodes connected to the corresponding electrodes of the DC power source. Transparent refractive body 4 is a column-like body. Inside the body is full of light-reflecting granulae 5 which are evenly distributed. The diameter of the granulae 5 is not bigger than 4 mm. One end of the column-like body is mounted on the base with the outer surface of the body remaining outside base 1 . Semiconductor luminotron 2 is positioned to face the end surface 6 of the column-like body. When power is on, semiconductor luminotron 2 illuminates and the light will be entering into the column-like body from end surface 6 . Due to the reflection and/or refraction of the granulae 5 , the column-like body will shine. The structure of the device shown in FIG. 2 is similar to that of FIG. 1 . The difference lies in the shape of transparent refractive body 4 . In FIG. 2 , transparent refractive body 4 is an egg-like solid body. A semiconductor luminotron 2 is positioned to face surface 6 of the body 4 so that light will enter into the egg-like solid body from surface 6 . In FIG. 3 , transparent refractive body 4 is shaped like a lampshade. A semiconductor luminotron 2 and a DC power source 3 are disposed in base 1 which is covered by the lampshade. Semiconductor luminotron 2 is positioned to face the end surface 6 of the lampshade. Light from semiconductor luminotron 2 will enter into the lampshade from the end surface 6 and the lampshade will then shine. In order to make the lampshade have a well-distributed brightness, more than one semiconductor luminotron 2 can be evenly disposed along the end surface 6 . In the present invention, DC power source can be dry battery, storage battery, photocell or AC/DC converter. When a photocell pack is adopted, the photo sensor of the cell should be exposed to the outside of the base 1 so that the cell can be charged by ambient light. The present invention has been described by referring to the accompanying drawings. However, it should be noted that the present invention is not limited to the embodiments described above. Any amendment without going beyond the spirit of the invention will fall into the scope of the invention.