Light guide parts for lighting fixtures

Abstract

This light-guiding component for a lighting fixture comprises a small, gently sloping entrance section in the shape of a regular hexagonal pyramid and a larger, more steeply sloping tapered section also in the shape of a regular hexagonal pyramid. The constricted section between the tapered section and the lens section (described below) is constricted from the regular hexagonal base of the tapered section to its inscribed circle, and the lens section is integrated into the constricted section. This component maximizes light from a light source, such as a light-emitting diode, through the entrance section, directs the light from the base of the tapered section to the circularly constricted illumination surface, and projects a circular beam of uniform illuminance onto the front surface through the lens section. While light-guiding components for lighting fixtures consisting of a small, gently sloping entrance section in the shape of a circular truncated cone and a larger, more steeply sloping tapered section in the shape of a circular truncated cone have not been able to achieve circular illumination with uniform illuminance, this component achieves circular illumination with uniform illuminance throughout the entire circle. In the reference diagram showing the state of use, the product is depicted in blue, but in reality the entire product is a solid, transparent body.

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