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