An optical product and the like having higher antireflection performance in the visible region, lower transmittance of near-infrared light, lower cost, and higher durability are provided.
In an optical product, an optical multilayer film having a seven-layer structure in which a low refractive index layer and a high refractive index layer are alternately stacked is provided on one or both sides of a substrate, and the low refractive index layer is _{formed using SiO 2} , and the high refractive index layer is , Is formed using a material having a refractive index of 2.145 or more for light having a wavelength of 500 nm, with the layer closest to the substrate as the first layer, and the physical film thickness of the fifth layer, which is the low refractive index layer, is 145 nm or more and 165 nm or less And the total total of the optical film thicknesses (λ=500 nm) of the 4th to 6th layers is 1.3λ or more and 1.5λ or less.