The method permits an ultra black film to be obtained, which has spectral reflectance of 0.1 to 0.4%, and the surface of which has innumerable ultra fine asperities of {HEAD ~ relatively uniform height} capable of {TAIL ~ observation} with a scanning electron microscope 
The method permits an ultra black film to be obtained , which has spectral reflectance of 0.1 to 0.4 % , and the surface of which has innumerable ultra fine asperities of { HEAD ~ relatively uniform height } capable of { TAIL ~ observation } with a scanning electron microscope
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 OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH