| 摘要 |
PROBLEM TO BE SOLVED: To obtain a method for manufacturing a plastic lens easily released from a lens matrix and having high transparency, optical homogenity and excellent surface accuracy. SOLUTION: When polyisocyanate and polythiol are polymerized in a glass or metal lens matrix, one or more types selected from a group consisting of fluorine nonionic surfactant, silicon nonionic surfactant and alkyl quaternary ammonium salt are previously added as inner mold release agent, and cast polymerized. |
