▎ 摘　　要

NOVELTY - An optical laminate (10) comprises a barrier thin film layer (22,24) formed on the surface(s) of a thin metal film layer (16), a high-refractive-index layer (14,18) having higher refractive index than the thin metal film layer, and a transparent substrate (12). The high-refractive-index layer comprises high-refractive-index material(s) chosen from high-refractive-index polymer having a functional group containing carbon, nitrogen, oxygen and/or sulfur, and graphene, and a binder. The barrier thin film layer comprises tin, silicon, chromium, zinc, aluminum, indium, their oxides, and/or their nitrides. USE - Optical laminate is used for window glasses of motor vehicles, buildings, and residence. ADVANTAGE - The optical laminate has excellent light transmittance (provided by graphene), thermal insulation property, and light resistance. Deterioration of the high-refractive-index layer by UV ray is suppressed, which suppresses reduction in adhesiveness of high-refractive-index layer. Graphene has excellent dispersibility and improves the stability of high-refractive-index layer. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the optical laminate. Optical laminate (10) Transparent substrate (12) High-refractive-index layers (14,18) Thin metal film layer (16) Barrier thin film layers (22,24)