| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide constitution for adjusting spherical aberration caused in a doublet. <P>SOLUTION: In the doublet consisting of at least two lenses, all the adjacent lenses are stuck, and the spherical aberration caused by the doublet itself is adjusted by setting the radii of curvature of two surfaces of an adhesive layer to different values from each other. <P>COPYRIGHT: (C)2004,JPO |
