Patent ID: 6565239
Filing Date: 2003-05-20
Classification: B64F,E01F,F21S,F21V,F21W,F21Y

Abstract:
A omnidirectional flush luminaire configured to provide a predetermined distribution of light about a horizontal surface comprising:a housing having an internal cavity disposed beneath the horizontal surface, wherein the housing defines an opening disposed adjacent the horizontal surface; a substantially flat transparent optical window having a surface, wherein the optical window surface overlays the housing opening and is substantially flush with the horizontal surface; a light source disposed within the housing cavity, wherein the light source provides a spatial light distribution pattern which defines an optical axis that is disposed substantially perpendicular relative to the optical window surface; and a circular prismatic light transformer disposed within the housing cavity, wherein the circular prismatic light transformer redistributes angular intensity emitted by the light source along preselected angles relative to the horizontal surface, thereby providing a predetermined omnidirectional angular intensity redistribution.