| 摘要 |
PROBLEM TO BE SOLVED: To provide a coating material capable of suppressing generation of irregularity when an optical coating film constituting an antireflection film is formed on a lens base material, and to provide an optical coating film formed of the coating material, and an optical element including the optical coating film.SOLUTION: The coating material is used for forming a coating film that constitutes an antireflection film to be provided on a lens base material, and the coating material comprises a solvent (A), a compound (B) having a polymerizable functional group, and metal oxide particles (C). The solvent (A) comprises at least one solvent (A1) selected from a group consisting of propylene glycol monopropyl ether, propylene glycol monomethyl ether and propylene glycol monomethyl ether acetate. The compound (B) having a polymerizable functional group comprises a compound (B1) having two or more urethane bonds in one molecule or a metal alkoxide (B2). |
