| CPC F21V 5/046 (2013.01) [F21S 8/06 (2013.01); F21Y 2105/16 (2016.08)] | 22 Claims | 

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               1. An orientation specific luminaire for illuminating a space from above an aisle, the orientation specific luminaire comprising: 
            a housing that supports a light source, the housing including 
                a downward facing side that faces a floor of the aisle, and has a predetermined orientation set in relation to at least one of a longitudinal axis of the aisle and a first vertical surface that defines a first side of the aisle; 
                the light source, the light source being supported by the downward facing side of the housing, the light source including 
                a plurality of lamps distributed across a planar structure, and 
                  a lens including a plurality of lens elements, the lens is disposed over the plurality of lamps and directs light emitted from the plurality of light sources to provide directional light that illuminates a plurality of vertical illuminated subfields distributed along the first vertical surface and across a plurality of horizontal illuminated subfields distributed along the floor of the aisle, wherein 
                  the first vertical surface comprises at least three vertical subfield ranges that are stacked on one another, an inclusionary subfield range is located between a bottom subfield range and a top subfield range, the inclusionary subfield range is defined by top and bottom longitudinal boundaries located above and below an average adult human eye level of 5′-0″ standing adjacent to the first vertical surface, wherein 
                an average light level emitted over surfaces of at least one of the top and bottom vertical subfield ranges measured vertically is less than average light levels emitted over the surface of the inclusionary subfield range of the first vertical surface measured vertically, and 
                maximum to minimum average illumination uniformity ratios between light levels vertically measured over the surface of the inclusionary range subfield and an average light level vertically measured over the surface of the bottom range subfield directly below the inclusionary range is equal to or less than 1.5:1.0. 
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