Patent ID: 11946636
Assignee: ABL IP HOLDING LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  G | IPC F  G

Claim 0:
1. An anti-glare refractor for a luminaire having a plurality of light sources, the anti-glare refractor comprising:
an optic body comprising:
a light entrance side comprising a substantially flat inner surface, the substantially flat inner surface being linear over an entire surface that is adapted to receive light rays generated by the plurality of light sources; and
a light exit side comprising an outer surface opposite the substantially flat inner surface and from which the light rays exit the anti-glare refractor, wherein a plurality of prisms are distributed on the outer surface and wherein each prism of the plurality of prisms is defined by a plurality of planar facet surfaces, each planar facet surface having a prism slope angle in a range from about 5 degrees to about 45 degrees with respect to the substantially flat inner surface, wherein each prism comprises an axis passing through an intersection of the planar facet surfaces defining the prism and wherein the prism is approximately symmetrical about the axis,

wherein the plurality of prisms are configured such that, regardless of a position of each of the plurality of light sources relative to the anti-glare refractor, when at least some of the light rays generated by the plurality of light sources are received by the substantially flat inner surface, said light rays exit the anti-glare refractor at an exit angle of 60 degrees or less when measured from an axis extending from and normal to the substantially flat inner surface in a direction toward the outer surface, such that the anti-glare refractor produces an anti-glare light distribution.