{HEAD ~ An ultra black film} is disclosed, which essentially consists of a base, a Ni P alloy layer formed on said base and {TAIL ~ a phosphate layer} formed on said Ni P layer, the spectral reflectance of said ultra black film being 0.04 to 0.4% 
{ HEAD ~ An ultra black film } is disclosed , which essentially consists of a base , a Ni P alloy layer formed on said base and { TAIL ~ a phosphate layer } formed on said Ni P layer , the spectral reflectance of said ultra black film being 0.04 to 0.4 %
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH