| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solid immersion lens which is prevented from the adhesion of an objective surface with an optical recording medium, and to provide a condensing lens using the same, an optical pickup device and an optical recording and reproducing device. <P>SOLUTION: At the tip 2 of the objective side of the solid immersion lens 11, a processed part 4 is formed at a part except a condensing part 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
