Patent ID: 7588345

Claim:
A lumenaire comprising: a lighting fixture; a lamp supported in the lighting fixture and having a horizontal centerline, a highest point and a lowest point; a diffuser disposed spaced from and at least partially about the lamp and including; a middle portion under the lamp comprised of a material with a predetermined pattern for both reflecting and transmitting incident light from the lamp, and end portions contiguous with said middle portion disposed toward the sides of the lamp and comprised of a material for refracting incident light from the lamp; wherein said middle portion comprises a translucent plastic base; and wherein said end portions are formed by respective substantially straight extensions of said translucent plastic base, both said extensions terminating at a position above a horizontal centerline of the lamp so as to obscure the image of the lamp from viewing angles therebelow; wherein each said substantially straight extension extends along a straight line axis and terminates in a free end; wherein the axes of said respective extensions converge; and wherein both free ends terminate at a location below the highest point of the lamp.