| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical unit for the use with high resolution, the optical unit having all lenses consisting of plastic lenses. <P>SOLUTION: The optical unit contains the following lenses (1), (2). They are: (1) a plastic lens having 45 to 60 Abbe's number; and (2) a lens obtained by injection molding polycarbonate having 0.30 to 0.50 dl/g limiting viscosity and having structural units expressed by general formula (A), general formula (B) and general formula (C), with the structural unit expressed by general formula (A) included in an amount of 5 to 50 mol% in the entire structural units. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
