| abstract |
Disclosed is a transparent titanium oxide sol that is easy to manufacture and has high light resistance over time when a coating film of an optical element is formed. Transparent oxidation in which titanium oxide sol particles are used as a core, and there are a plurality of coating layers made of silicon, tin, and antimony hydrated oxides, and the antimony hydrated oxide is the outermost coating layer. Titanium sol. [Selection figure] None |