| 摘要 |
<p>An optical element comprising an organic glass base and a hard coat layer formed over the surface of the base through a primer layer. The primer layer has been formed from a composition comprising a primer-forming polymer consisting exclusively or mainly of an ester type TPE. The hard coat layer has been formed from a composition comprising: a hydrolyzate of one or more alkoxysilanes consisting mainly of a trialkoxysilane containing a monoepoxy organic group as a matrix-forming ingredient; and a finely particulate composite of titania-based metal oxides as an optical interference controller. The finely particulate composite of titania-based metal oxides comprises TiO2 as the main component, SiO2 as the primary minor component, and ZrO2 and K2O as trace minor components. The optical element has various properties comparable to those of conventional optical parts and can inhibit light interference even when the base has a high refractive index. It further has excellent coating film stability.</p> |
