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US 2003/0165065 A1Published application
Single light-emitting diode vehicle lamp
AssigneeTruck-Lite Co., LLC
InventorsPhilip C. Roller, Todd H. Kolstee, Christopher A. Ross
Life of this patent
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Abstract
A vehicular lamp employs a single, high-flux light emitting diode as a light source, and is capable of performing stop, tail, turn and marker functions. The vehicular lamp can satisfy the Federal Motor Vehicle Safety Standard 108, as well as Society of Automotive Engineers Standards J585, J1395, J1398 and J592.
Claims12
A vehicular lamp comprising:
- a housing;
- a single light emitting diode as a light source, adapted to attach to a base of said housing and capable of emitting a minimum flux of approximately 20 lumens;
- a lens, adjacent to said light emitting diode, having a front wall and a side wall, wherein said front wall is spherical and comprises a front surface and a rear surface;
- said rear surface of said lens comprising a plurality of catadioptric prism rings, an aspheric center lens, and a plurality of linear prism optics for distributing the light emitted from said light emitting diode horizontally and vertically;
- wherein the combination of said prism rings, said center lens, and said linear prism optics produce a composite light distribution with a minimum angulation substantially 10° above and below the longitudinal axis of said lamp and a minimum angulation substantially 20° left and right of the vertical axis of said lamp.
2 more elements
Dependencies are inferred from the claim text.