OPTICAL MEMBER, OPTICAL SYSTEM USING THE SAME, AND METHOD FOR PRODUCING OPTICAL MEMBER

摘要

Disclosed is an optical member wherein high antireflective effect can be maintained on an arbitrary base for a long time. Specifically disclosed is an optical member wherein a multilayer body is formed on the surface of a base. In this optical member, at least one layer is a metal oxide layer (27) having a pore, and at least one layer mainly composed of an organic resin (26) is arranged between a base (25) and the metal oxide layer (27). The metal oxide layer is a plate-like crystal layer which is composed of a plate-like crystal mainly containing aluminum oxide, and the surface of the plate-like crystal layer has projections and recesses. At least a part of the organic resin has an aromatic ring and/or an imide ring.