| http://www.w3.org/ns/prov#value | - The first transmittance adjusters 26 may be a diffusive reflector that may be prepared by, for example, coating the surface with a material that scatters light, as exemplified by a pigment such as silica, titanium oxide or zinc oxide, a resin, or beads of glass or zirconium, together with a binder, or by finely embossing or polishing the surface to produce a surface roughened pattern.
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