Dispersions, dispersion groups, low-refractive-index layers, optical components, and optical devices

Abstract

This invention provides a dispersion capable of producing a low-refractive-index layer that achieves both low refractive index and low haze value. The dispersion of this invention is characterized by being formed by dispersing silica gel particles in a dispersion medium, wherein the D50 particle size of the silica gel particles is less than 130 nm, the pore diameter is less than 15 nm, and the specific surface area is 500 m² / g or more.