abstract |
(57) [Problem] To provide an optical material having sufficient transparency and moisture resistance and capable of sufficiently suppressing whitening (clouding), and a method for producing the same. SOLUTION: The method for producing an optical material according to the present invention is represented by the following formula (10): A step of mixing a phosphate ester compound and cupric oxide represented by, and a step of adding water thereto, the optical material of the present invention contains a phosphate ester copper compound obtained by their reaction It consists of. |