Optical element having cured film
AssigneeHoya Corporation
InventorsTakanobu Itoh, Keitaro Suzuki, Yoshinari Koyama, Motoko Iijima
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Abstract
An optical element having, on an optical substrate, a cured film formed of a coating agent containing (A) modified stannic oxide-zirconium oxide composite colloid particles as prepared by coating at least a part of the surfaces of stannic oxide-zirconium oxide composite colloid particles with stannic oxide-tungsten oxide-silicon oxide composite colloid particles, and (B) an organosilicon compound.
Claims32
An optical element comprising an optical substrate and a cured film coating thereon wherein the cured film coating is formed from a coating agent comprising (A) modified stannic oxide-zirconium oxide composite colloid particles prepared by coating at least a part of surfaces of stannic oxide-zirconium oxide composite colloid particles with stannic oxide-tungsten oxide-silicon oxide composite colloid particles, and (B) an organosilicon compound.
Dependencies are inferred from the claim text.