REFLECTION REDUCING GLASS

PROBLEM TO BE SOLVED: To efficiently ensure low reflection performance at a low cost by laminating thin oxide films different from each other in refractive index on one face of a glass substrate and forming a thin SiO2 film or a thin mixed oxide film comprising SiO2 and other oxide on the other face. SOLUTION: Two or three thin oxide films different from each other in refractive index are formed on one face of an inorg. or org. glass substrate and a thin SiO2 film of 105-130 nm thickness or a thin mixed oxide film comprising SiO2 and other oxide selected from TiO2 , ZrO2 , Al2 O3 , B2 O3 , SnO2 , In2 O3 and Ta2 O3 and having a refractive index of 1.43-1.47 and 4.5-7% visible light reflectance to incident light at 40-80% of incident angle is formed on the other face. Such low reflection performance as about >=6% reflection reduction rate at the attachment angle of a front window is efficiently ensured at a low cost and the objective reflection reducing glass excellent in adhesion, abrasion resistance and weather resistance is obtd. without deteriorating optical characteristics.