Abstract: An optical unit is provided for use in a suspended aisle luminaire. The optical unit comprises a plurality of metalized reflecting components which are operative to produce a uniform illuminance level along vertical surfaces of an aisle while minimizing glare toward workers in the aisle. Secondly, the optical unit includes a plurality of non-metalized reflecting components which are operative to illuminate the vertical and horizontal surfaces of the aisle. Additionally, the optical unit may further comprise a plurality of refracting components which are operative to illuminate vertical surfaces near the luminaire and reduce dark spots on the vertical surfaces.

Abstract: An improved luminaire assembly having an HID lighting source with an upper reflector portion and a lower refractor portion. This luminaire assembly provides downlight control and glare control properties for a concentrated, narrowly spaced downwardly directed illumination. The downward light control below horizontal to uniformly distribute downward directing the light rays below horizontal to angle in the range between 30.degree. to 50.degree. vertical.

Abstract: An outdoor luminaire assembly adapted to be attached to a mounting stanchion that includes an optical assembly having a lamp for generating light, an arm for supporting the optical assembly from the mounting stanchion, and a ballast which is enclosed within the arm. The optical assembly is adapted to receive and support a cover member which is selected from a group of differently shaped cover members. The cover member is made of a plastic material in order to provide design flexibility. The arm has a removable panel which allows for maintenance-ready access to the ballast and other electrical componentry which is enclosed within the arm.