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