| 摘要 |
A light-emitting toothbrush 11 comprising a head 13 having a plurality of bristles 15 affixed to and extending from a first side 17 , a handle 23 detachably affixed to a second side of the head, a light guide 25 having a first end 27 disposed within the head and a second end 29 disposed within the handle, and a light source 33 optically coupled to the second end of the light guide. The light source emits light having a spectrum ranging from about 350 nanometers to about 700 nanometers. Light from the light source entering the light guide is guided to the first end of the light guide and out of the first side of the head. Thus the light emitted from the head illuminates teeth while brushing.
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