| 摘要 |
PROBLEM TO BE SOLVED: To provide a plastic shaped article which realizes high precision plastic shaping by paying attention to a plastic lens shape, changing a thickness of a rib and a structure of a non-optically functional surface in an allowable range without decreasing performance of an optically functional surface, controlling a mechanism of deformation and shrinkage of the optically functional surface with a desired plastic shaped article itself, and coping with troubles regarding the optical function such as the deformation and shrinkage of the long plastic lens using the conventional technique. SOLUTION: The plastic shaped article 1 comprises at least one surface of a functional part A for which high transferability is required and at least one surface of a non-functional part B neighboring to the functional part A, wherein a ratio of the thickness of the functional part A to the thickness of the non-functional part B is constant on an arbitrary surface perpendicular to the functional part A and the non-functional part B neighboring to the functional part A. COPYRIGHT: (C)2007,JPO&INPIT |
