LED BULB OPTICAL SYSTEM WITH UNIFORM LIGHT DISTRIBUTION

摘要

A pear-shaped light-emitting diode (LED) light bulb housing is provided with a plurality of light-dispersing thickness variations in the bulb envelope. Dimples, bumps, or v-shaped grooves are provided in a middle portion of the bulb envelope in order to uniformly disperse light from LEDs as the light passes through the bulb envelope.

主权项

1. A light-emitting diode light bulb comprising:
a) an electrical screw base having an annular opening; b) a pear-shaped bulb envelope affixed to the screw base, the bulb envelope having
i) a tapered portion attached to the opening of the screw base,ii) a domed upper portion, andiii) a bulged middle portion extending between the domed and tapered portions; c) a plurality of light-dispersing thickness variations in the middle portion of the bulb envelope; d) a first vertical wing structurally integrated into the bulb envelope; e) a second vertical wing structurally integrated into the bulb envelope and separated from the first wing by a first section of the middle portion of the bulb envelope; f) a third vertical wing structurally integrated into the bulb envelope and separated from the second wing by a second section of the middle portion, the third wing further separated from the first wing by a third section of the middle portion; g) a first light-emitting diode mounted on the first wing and pointing toward the second section; h) a second light-emitting diode mounted on the second wing and pointing toward the third section; and i) a third light-emitting diode mounted on the third wing and pointing toward the first section.