FINE STRUCTURE OPTICAL MEMBER ANTIREFLECTION FILM WATER REPELLENT FILM SUBSTRATE FOR MASS SPECTROMETRY PHASE PLATE PROCESS FOR PRODUCING FINE STRUCTURE AND PROCESS FOR PRODUCING ANTIREFLECTION FILM

摘要

Provided are an antireflection film having a high antireflection effect and a production process therefor an optical member excellent in antireflection effect a water repellent film having excellent water repellency a substrate for mass spectrometry having high detection sensitivity a high accuracy phase plate and a fine structure that can be used in the foregoing and a production process therefor. The fine structure is a structure including multiple conical portions on a surface thereof in which the conical portions have a mesostructure; and the mesostructure includes a structure having mesopores.