Patent ID: 6139169
Filing Date: 2000-10-31
Classification: F21S,F21V,F21W,F21Y

Abstract:
An encased parabolic lighting louver for attachment to a light source housing, comprising:a light reflective panel formed of parabolic louver sections arranged in a selected pattern with at least some louver sections including selected reflective surface configurations configured to produce a specific light distribution curve;wherein the light reflective panel includes a top surface and a bottom surface and defines light transmissive cells extending between the top and bottom surfaces and disposed between the parabolic louver sections, said cells opening at the top and bottom surfaces;a case enclosing and substantially hermetically sealing the light reflective panel and including a light reflective panel receiving compartment formed by a substantially transparent bottom cover member, a top cover member, and peripheral side walls joining the top and bottom cover members;wherein the light reflective panel is disposed within the case with the bottom surface of the panel and light transmissive cells adjacent the transparent bottom cover member of the case; anda mount element on the case configured for attachment to a light source housing to position the top cover member of the case outwardly adjacent to a light source within the housing whereby the reflective panel is isolated and substantially sealed from the environment yet held by the mount element adjacent the light source to control emissions from the light source.