Patent ID: 6027231
Filing Date: 2000-02-22
Classification: F21V,F21W

Abstract:
A luminaire having a high intensity discharge light source for generating light rays, the luminaire comprising:a refractor portion having an upper sidewall refractor portion and a lower sidewall refractor portion with an opening at its bottom, the upper sidewall refractor portion including an outer surface with prisms disposed thereon for directing the corresponding light rays to one of either below horizontal or above horizontal, the lower sidewall refractor portion having a curved shape and an outer surface with prisms disposed thereon for directing the light rays below horizontal to an angle in the range between 30.degree. to 50.degree. vertical, and the upper sidewall refractor portion and the lower sidewall refractor portion each having an inner surface with vertical prisms disposed thereon for laterally diffusing the light rays for reducing glare; anda reflector portion having a sidewall with prisms formed on the sidewall outer surface for reflecting the light rays downward through the opening of the lower sidewall refractor portion.