| 摘要 |
An economical, energy efficient light pipe that illuminates to encircle a button or the like is disclosed. In one embodiment, the light pipe is substantially conical shaped with a substantially convex tip positioned substantially adjacent to a light source. Preferably, the light pipe has a substantially conical-shaped portion that opens into a substantially cylindrical-shaped central portion and then opens further into a substantially conical shaped outer portion defining an outer illumination ring, thereby allowing a single, energy efficient, light emitting diode positioned adjacent to the convex tip to light the entire outer illumination ring.
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