Optical: systems and elements – Diffusing of incident light
Patent
1996-04-10
1999-04-06
Spyrou, Cassandra
Optical: systems and elements
Diffusing of incident light
359599, 359584, 359589, 523135, 362260, 362290, G02B 502, G02B 110, B29C 6100, H01S 3093
Patent
active
058926216
ABSTRACT:
The present invention relates to surfaces used to reflect light, and particularly to highly light reflectant surfaces that provide even diffusion of light for the purpose of maximizing light efficiency and/or uniformity in a luminaire. By employing an expanded polytetrafluoroethylene (PTFE) comprising a microstructure of polymeric nodes and fibrils, the material of the present invention demonstrates exceptional diffuse reflectivity across a wide spectrum of visible light. Additionally, the material of the present invention provides many properties that have been previously unavailable in highly diffuse reflective material, including a high degree of malleability, moldability and flexibility, and effective reflectivity even at relatively thin cross-sections.
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Hannon Gregory E.
McGregor Gordon L.
Minor Raymond B.
Johns David J.
Sikd-er Mohammad Y.
Spyrou Cassandra
W. L. Gore & Associates, Inc.
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