Patent ID: 7207701

Claim:
A self powered illumination device for floating on a surface of a body of water having a water-air interface, said device including a power source and an illumination source contained within a buoyant body, the buoyant body having: a) an undersurface portion and a protruding, light transmitting, lower surface for projecting light into a body of water when the illumination device is floated in an upright orientation on the surface of such body of water b) a dome having faceted surfaces surrounding the light source, the faceted surfaces surrounding the light source being angled to redirect a portion of light emitted downwardly towards a more upwardly direction wherein: the source of illumination is of a dimension and is positioned at a distance below the undersurface portion to provide that a greater portion of light emitted therefrom is directed for emission in the lateral direction rather than the downward direction and a portion of the downwardly emitted light is directed at an upward angle for reflection off of the water-air interface and then outwardly and laterally from the fight source.