| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a plastic lens satisfying a desired design value by suppressing thermal deformation in the method in which the objective surface of the lens is turned downward, the most peripheral part of the lens is supported, and the lens is heated at its glass transition temperature or above. SOLUTION: The plastic lens, after being heated at the glass transition temperature or above, is cooled at a cooling speed of 0.2-2°C/min, more preferably 0.5-1°C/min. COPYRIGHT: (C)2004,JPO&NCIPI
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