Abstract: A seating unit comprises a pair of armrests, a first backrest secured between rearward ends of the armrests and disposed in cantilevered relationship therewith on the seating unit, a second backrest disposed in unattached relationship below the first backrest, and a seat secured in the seating unit between front and rearward sides thereof. The arm and backrests, as well as front and rear legs adapted to be used with the seating unit, are covered with a replaceable and exposed protective covering. The covering is composed of an elastomeric cushioning material, such as foamed neoprene, adapted to absorb impact loads imposed thereon. Each backrest preferably includes a semi-rigid flexible plastic strap adapted to flex and deform to at least substantially conform to the contour of the back of a person resting thereagainst.

Abstract: A luminaire comprises a high intensity light source for emitting a spherical light pattern, a redirection module for converting the spherical light pattern into a radial light pattern, and a reflector module for reflecting the radial light pattern into a controlled and substantially uniform light pattern onto a visual task field.