Patent ID: 6921578

Claim:
A low reflection glass article obtained by forming a low reflection film composed of silica fine particles and a binder composed of metal compounds on a glass base substrate, the low reflection glass article being characterized in that said low reflection film contains said silica fine particles and said binder in a weight ratio proportion of 60:40 to 95:5, and in that said low reflection film is formed by coating a coating solution onto the glass base substrate and subjecting it to heat treatment, said coating solution being prepared by adding a hydrolyzable metal compound (1) in a state before hydrolyzation, to a mixture of starting fine particles (2) comprising non-aggregated silica fine particles with a mean particle size of 40-1000 nm and/or linear (chain-like) aggregated silica fine particles with a mean primary particle size or 10-100 nm, water (3), and a solvent (4), and then hydrolyzing the hydrolyzable metal compound in the presence of an acid catalyst, the acid catalyst being added before or after the addition of the hydrolyzable metal compound to the starting fine particles, and the coating solution undergoing a condensation reaction between a product of the hydrolysis and a silanol present on said silica fine particles, such that the binder covers surfaces of the silica fine particles, enhancing an adhesion between the silica fine particles.