PURPOSE: To produce an ultraviolet ray shielding glass excellent in chemical and physical durabilities, ultraviolet ray absorbing performances and transparency.
CONSTITUTION: This ultraviolet ray shielding glass is obtained by forming an ultraviolet ray absorbing film such as zinc oxide on a glass substrate and covering the surface thereof with an outer layer film of oxides comprising two components of silicon (Si) and cerium (Ce). When the outer layer film is formed by coating a mixed silicone-cerium mixed coating liquid, the solid ratio (molar ratio) SiO2:CeO2=(x):(y) of the SiO2 to CeO2 is preferably within the range of 1.0-4.0 and the solid ratio (y) of CeO2 is especially preferably within the range of 1.0≤(y)≤3.0 by considering the ultraviolet ray shielding performances and color tone. The film thickness of the outer layer film is pref ≥0.1μm and especially preferably ≥0.2μm in order to impart ultraviolet ray shielding properties.
NOZU TAKASHI
MUROMACHI TAKASHI
TSUJINO TOSHIFUMI
NAKAMURA KOICHIRO
