Light emitting diode lamp with conically focused light guides

Abstract

A lamp component comprising: a support having a base surrounded by an inner wall defining a cavity with a central axis; a plurality of light emitting diodes supported on the inner wall and generally aligned such that light is directed toward the central axis; and a central piece having a first reflective surface shaped and positioned to facilitate intercepting light received from the light emitting diode and causing the received light to generally lie along a direction parallel to the axis direction reflection.

Description

technical field [0001] The present invention relates generally to light sources, in particular to light sources for lamps employing light-emitting diodes (LEDs), in particular to light sources for the automotive sector, such as headlights, taillights, parking lights, fog lights, turn signals and the like. Background technique [0002] In the past, the vast majority of light sources for motor vehicles involved the use of incandescent bulbs. While incandescent lamps work well and are inexpensive, they have a short lifespan and of course the thin filaments they use tend to break due to vibration. [0003] Recently, some of them have been replaced by LEDs, especially spotlights. These solid state light sources have a very long lifetime of approximately 100,000 hours and are not prone to vibration damage. It would be an improvement in the art if the lighting use of LEDs could be extended to other areas of automotive lighting, especially if the emission was sufficiently controll...

AI Technical Summary

Problems solved by technology

Although incandescent lamps work well and are inexpensive, they have a short lifespan and of course the thin filaments they use tend to break due to vibration

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