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US 2004/0105262 A1Published application
LED light source with reflecting side wall
AssigneeHarvatek Corporation
InventorsTzyy Jang Tseng, Bily Wang, Alen Ke
Life of this patent
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Abstract
A light emitting diode chip or chips array mounted on a substrate is surrounded by one or more side walls. The wall has an uneven reflecting surface to diverge the light emitted from the LED chip or chip array. The wall may have a triangular cross-section so that the emitted light diverges in all directions. When three double-sided reflecting walls surround three LED panels, the reflected light becomes omnidirectional hemispherically and can be used in a light bulb.
Claims10
A light emitting diode (LED) light source, comprising:
- at least one LED chip;
- a substrate for mounting said chip;
- and
- at least a reflecting wall erected at an edge of said substrate and having uneven contour, so that the light emitted by LED is reflected in directions other than the normal direction of the LED chip.
1 more element
Dependencies are inferred from the claim text.