| http://www.w3.org/ns/prov#value | - Examples of a preferable element constituting such fine particles for blackening the light-shielding film are metals such as aluminum (Al), cadmium (Cd), cobalt (Co), chromium (Cr), iron (Fe), indium (In), manganese (Mn), nickel (Ni), palladium (Pd), vanadium (V), niobium (Nb) and tantalum (Ta); and semi-metals such as bismuth (Bi) boron (B) and carbon (C).
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