LED LAMP

An LED lamp includes a base, a driving circuit board mounted to the base, a lighting module, a light guide member, and a reflecting member for reflecting light transmitted from the light guide member. The lighting module includes LEDs annularly disposed on and connected electrically to the driving circuit board. The light guide member has a light-receiving end corresponding in position to the LEDs. The reflecting member has an annular reflecting portion disposed in the light guide member, and a covering portion extending outwardly from a distal end of the annular reflecting portion and covering a distal end of the light guide member.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring toFIG. 2, the preferred embodiment of an LED lamp according to the present invention is disclosed to include a base2, a driving circuit board3mounted to the base2, a lighting module4, a light guide member5, and a reflecting member6.

As shown inFIG. 3, the lighting module4has a plurality of spaced-apart LEDs41that are disposed annularly on and connected electrically to the driving circuit board3.

Referring back toFIG. 2, and further referring toFIGS. 4 and 5, the light guide member5is transparent and hollow, and has a light-receiving end51that is disposed on the driving circuit board3(i.e. the light guide member5is indirectly connected to the base2), that corresponds in position to the light emitting diodes41, and that is disposed for receiving light emitted from the light emitting diodes41, and a distal end52that is opposite to the light-receiving end51. The light-receiving end51of the light guide member5is formed with a plurality of grooves511for receiving respectively the LEDs41, for improving the light receiving effect of the light guide member5, and for positioning irrotatably the light guide member5on the driving circuit board3. In this embodiment, the light guide member5is frustoconical and has a cross-sectional inner diameter that is decreased gradually from the distal end52to the light-receiving end51. However, the shape of the light guide member5is not limited in other embodiments of the present invention.

The reflecting member6is used for reflecting the light transmitted from the light guide member5and has an annular reflecting portion61that is disposed in the light guide member5and that extends from the driving circuit board3, and a covering portion62that extends radially and outwardly from a distal end of the annular reflecting portion61and that covers the distal end52of the light guide member5. In this embodiment, the reflecting member6is white and made of a plastic material, but it is not limited in this regard in other embodiments of the present invention.

To sum up, the gradually decreasing cross-sectional inner diameter of the light guide member5, along with the reflecting member6, allows the transmitted light to be reflected evenly and outwardly from the reflecting member6. Moreover, the covering portion62of the reflecting member6avoids glares due to the emission of the transmitted light from the distal end52of the light guide member5, thereby resulting in even light emitting distribution of the LED lamp throughout the light guide member5and requiring fewer LEDs41compared to the conventional LED lamp.