Self-powered illumination device

Details Self-powered illumination device Self-powered illumination device

2007-04-24

2007-04-24

Han, Jason Moon (Department: 2875)

Illumination

Supported by vehicle structure

Marine

C441S016000

Reexamination Certificate

active

10980255

ABSTRACT:
A self-powered illumination device includes an illumination source protruding from its lower surface for projecting light into a body of water to provide light that is emitted preferentially outwardly to illuminate the sides of a pool. Light emitted with an upward angle of inclination strikes the underside surface of the water-air interface surrounding the device and is reflected outwardly and laterally away the from the light source after striking such underside surface. Preferably, the illumination source has a length that extends downwardly that is commensurate or greater than its width and may be in the form of a fluorescent tube. The illumination device is fully self righting when inverted on the surface of a body of water.

REFERENCES:
patent: 2109813 (1938-03-01), Winckler
patent: 2201094 (1940-05-01), Kassel
patent: 3253138 (1966-05-01), Nagel
patent: 5351432 (1994-10-01), Tse
patent: 5961204 (1999-10-01), Martich et al.
patent: 6203170 (2001-03-01), Patrick et al.
patent: 6848807 (2005-02-01), Guerrieri
patent: 6900735 (2005-05-01), Guerrieri et al.

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