Loading patent…
Assignee3M Innovative Properties Company
InventorsScott R. Kaytor, Kenneth A. Epstein, John C. Harvey, Stephen J. Pojar, Neal T. Strand, Clinton P. Waller, Jr., William A. Hibbard, David R. Gagnon
Estimating the term…
Diffuse reflective materials attached to a structure formed by thermally induced phase separation of a thermoplastic polymer and a diluent providing enhanced flexibility and reflectivity especially in the visible wavelengths of 380-730 nanometers are described. Such materials find a wide variety of application among combinations with other reflective layers. The diffuse reflective articles are useful in backlight units of liquid crystal displays, lights, copy machines, projection system displays, facsimile apparatus, electronic blackboards, diffuse white standards, photographic lights and the like.
A diffuse reflective article comprising a diffuse reflective material attached to a structure capable of holding a diffuse reflective sheet material in place for use as a reflector wherein said diffuse reflective material is made of a porous polymeric sheet characterized by a microstructure comprising a network of polymer domains and fibrils interconnecting the domains, in which network the number of fibrils is not predominant over the number of polymer domains, as shown in FIG. 13.
A diffuse reflective article comprising a diffuse reflective material attached to a structure capable of holding a diffuse reflective sheet material in place for use as a reflector wherein said diffuse reflective material is made of a porous polyolefin sheet comprising a network of polymer domains and fibrils interconnecting the domains.
A diffuse reflective article comprising a diffuse reflective material attached to a structure capable of holding a diffuse reflective sheet material in place for use as a reflector wherein said diffuse reflective material is made of a porous polymeric sheet comprising a network of polymeric material having voids therein which material comprises:
A sign cabinet comprising walls and a light source, wherein at least one of the walls is lined with a diffuse reflective material made of a porous polymeric sheet comprising a network of polymeric material having voids therein which material comprises:
A light conduit comprising an optical lighting film, at least one of a back reflector and an extractor, which is a strip of material placed against the interior side of the optical lighting film of the light conduit to cause light to exit the conduit, wherein the back reflect or, the extractor or both comprise a diffuse reflective material made of a porous polymeric sheet comprising a network of polymeric material having voids therein which material comprises:
A method of improving diffuse reflectivity of light comprising using a diffuse reflective material to cause light energy to reflect off of it, wherein the material comprises a porous polymeric sheet comprising a network of polymeric material having voids therein which material comprises:
Dependencies are inferred from the claim text.