| 摘要 |
To provide a light-shielding film for optical element having durability under high temperature and high humidity conditions and resistance to a cleaning liquid. A light-shielding coating film for optical element containing: a cured substance at least containing an epoxy resin, titania fine particles, a dye, and an amine curing agent, in which the equivalent ratio (A/E) of the active hydrogen equivalent weight (A) of the amine curing agent and the epoxy equivalent weight (E) of the epoxy resin and the compounding ratio (A'/E') of the amine curing agent amount (A') and the epoxy resin amount (E') satisfy the following expression 1, (Expression 1) 1.1 <= (A'/E') / (A/E)) <= 1.7. |
