Tunable lighting apparatus

摘要

A luminaire provides light having a distribution pattern with high center beam candle power and a gradual gradient across a wide area. The luminaire includes a light source having first and second sets of light emitting elements selected and positioned to achieve the desired light distribution pattern. The luminaire further includes an optic configured to refract light emitted from the light source to achieve the desired light distribution pattern.

主权项

1. A luminaire comprising:
a housing; a light source carried by the housing comprising a first set of light emitting elements and a second set of light emitting elements; and a lens assembly carried by the housing, the lens assembly comprising a lens comprising:
a first refraction section having a surface smoothness within a first range from 4 microinches to 8 microinches, anda second refraction section having a surface smoothness within a second range from 8 microinches to 100 microinches,wherein the first range is not equal to the second range; wherein the first set of light emitting elements is configured to emit light at a first beam angle of about 18 degrees; wherein the second set of light emitting elements is configured to emit light at a second beam angle of about 47 degrees; wherein the light emitted by the first set of light emitting elements and the second set of light emitting elements combine to form a combined light; wherein the combined light has a center beam and a gradient; and wherein the center beam has a greater candle power than the gradient.