Reflector With Concentric Interrupted Reflecting Surfaces

摘要

A compact optical assembly includes a linear array of LEDs and a plurality of reflectors. The reflectors include two concentric reflecting surfaces that surround the LED light sources. The inner reflecting surface reflects the majority of the light emitted from the LED light source and the outer reflecting surface reflects light emitted through longitudinal channels in the inner reflecting surface. The concentric reflecting surfaces cooperate to create a wide-angle beam of light with a desired dispersion pattern.

主权项

1. A reflector for use in conjunction with an LED light source having an optical axis AO centered on an area of light emission from which light is emitted in a hemispherical emission pattern surrounding said optical axis AO, said light is emitted to one side of a first plane P1 coincident with said LED light source and perpendicular to said optical axis AO, said reflector comprising:
an inner reflecting surface and an outer reflecting surface, said inner reflecting surface defined by a curve of a parabola having a focus at said LED light source rotated about said optical axis AO from said first plane P1 to an outer end and having a plurality of windows arranged opposite one another along a longitudinal axis AL, and said outer reflecting surface defined by a curve of a parabola having a focus at said LED light source rotated about said optical axis AO from a first end to a second end; wherein said windows are configured to allow light to reflect on said outer reflecting surface, and wherein said inner reflecting surface and said outer reflecting surfaces are configured to cooperate to redirect light rays divergent from said longitudinal axis AL into a direction substantially parallel with said longitudinal axis AL.